SUSTAINABLE CONCRETE CONSTRUCTION IN THE MIDDLE EAST
|
|
- Elfreda Sullivan
- 6 years ago
- Views:
Transcription
1 SUSTAINABLE CONCRETE CONSTRUCTION IN THE MIDDLE EAST Christopher Stanley*, Technical Director, Unibeton Ready Mix, Abu Dhabi, United Arab Emirates 33rd Conference on OUR WORLD IN CONCRETE & STRUCTURES: August 2008, Singapore Article Online Id: The online version of this article can be found at: This article is brought to you with the support of Singapore Concrete Institute All Rights reserved for CI Premier PTE LTD You are not Allowed to re distribute or re sale the article in any format without written approval of CI Premier PTE LTD Visit Our Website for more information
2 33 rd Conference on OUR WORLD IN CONCRETE & STRUCTURES: August 2008, Singapore SUSTAINABLE CONCRETE CONSTRUCTION IN THE MIDDLE EAST Christopher Stanley*, Technical Director, Unibeton Ready Mix, Abu Dhabi, United Arab Emirates Abstract Ninety miles (140km) from Dubai, on the coast of the Arabian Gulf, Abu Dhabi, the capital of the United Arab Emirates, is listed by Fortune money magazine as the richest city in the world. Appearances can be deceptive, because Abu Dhabi is a quieter more conservative city; but all that is about to change. Abu Dhabi is set to achieve a growth rate in the next ten years even in excess of Dubai, whilst hopefully gaining experience from the environmental problems generated by Dubai s rapid expansion in order to build a more sustainable environment. The town is focusing on Green, energy saving construction & the largest Ready Mixed Concrete Company in the Gulf is leading the field, with the promotion of Green sustainable concrete. [In this context green is taken to mean environmentally friendly concrete with low carbon dioxide emissions, not concrete in its plastic state.] This uses materials that represent a 75% saving on carbon dioxide emission against the more traditional type of conventional concrete made from Ordinary Portland cement. It is a considerable advance, bearing in mind that more than a million cubic metres of concrete are poured in a month in what must be the world s greatest construction frenzy, where it is estimated that over 25% of the world s Tower Cranes are currently in use. Both Abu Dhabi & Dubai are constructing some impressive structures, ranging from a 1.2km high tower, man made islands in the shape of palm trees jutting out into the Arabian Gulf, and an amazing assortment of buildings and structures including bridges & an elevated monorail transportation system. However one of the more interesting developments known as Masdar is just about to start. This development is setting its sights on a zero carbon footprint. It is a 6 square kilometre development which will use in excess of 4.2 million cubic metres of concrete. Environmental responsibility in the Construction Industry is taken very seriously and Green building codes are in the course of production by the Government Authorities.
3 Introduction The major constituent in concrete is Portland cement is calcium carbonate in the form of limestone, marble, or chalk. What is not generally appreciated is that during the cement manufacturing process a considerable amount of carbon dioxide is driven off when the ingredients are heated to around 1200 degc in a rotary kiln. It is estimated that about 900kg of carbon dioxide are given off for every 1000kg of cement that is produced. In addition the aggregate production consumes electrical energy in the crushing & sieving & further transportation costs for fuel add to the production of carbon dioxide. Figure 1. Increase in cement consumption percent based on statistics prepared by D Cooney Figure 2. Cement consumption per capita Based on statistics prepared by D Cooney
4 Concrete is the world s most important construction material whose use is increasing year by year. We cannot do without it and therefore it is important to find economical ways of optimizing its use by carrying out concrete construction in a manner which can help to reduce carbon dioxide emission into the atmosphere. This can be achieved in a number of ways. The obvious alternative is to use partial cement replacements in the mix. These include ground granulated slag & pulverized fuel ash together with small additions of silica fume. Other energy saving methods include a greater use of self compacting concrete; and also high strength concrete, which enables the use of thinner sections in buildings & structures with the corresponding benefits in the economical use of materials. The addition of various types of fibres into the mix & the replacement or the reduction in the quantity of steel reinforcement (which generates three times as much carbon dioxide in its manufacture as does cement), also helps with the reduction of carbon dioxide emissions. Currently there are no economically viable replacements for steel reinforcement but optimization in the design together with the use of high strength concrete is beneficial. The greatest focus on green concrete is with the use of partial cement replacements such as PFA & slag. In addition rice husk ash has been considered but it needs to be produced by controlled burning techniques & is currently seldom used in the Middle East. Apart from the savings in carbon dioxide emission, slag & PFA help to control the temperature rise in concrete & the peak temperature reached, which is very important where the ambient temperature is often over 55degC. Typical additions of slag replacement of cement in Abu Dhabi are about 50% & PFA is between 25-30%, but 40% is being considered for some projects. Clearly with either of these materials emphasis on curing after placing is essential in order to benefit from the pozzolanic properties of strength development & reduction in permeability.
5 With such high outputs of concrete, potential shortages of materials is always cause for concern, especially cement & water. This is another advantage of reducing the cement content in concrete mixes. Compressive strength - Mpa (N/mm2) Compressive Strength of Concrete Mixes with Partial Cement Replacements ( 350kg/m3 cement content) 100% OPC OPC+65%GGBS OPC+25%PFA OPC+40%PFA Figures 2 & 3. Typical strength development curves for concrete mixes with partial cement replacements based on trials carried out in Dubai. days 60 Compressive Strength of Concrete Mixes with Partial Cement Replacements ( 450kg/m3 cement content) Compressive strength - MPa (N/mm2) % OPC OPC+65%GGBS OPC+25%PFA OPC+40%PFA days High rise & high performance Currently the world s tallest concrete buildings are under construction in Dubai. The Burj Dubai, commenced construction in It is now about 800m high and nearing completion. Another, the Al Burj, which
6 will be 1.2km high, is just coming out of the ground. There are plans for even taller structures presently under consideration. Plate 1. (left) The Al Burj Tower. Dubai. The pile foundations of this tower have just been cast. When completed this will be the tallest free standing structure in the world with a height of 1.2km. Plate 2. (right) The Burj Dubai Tower Dubai. Nearing completion this tower is about 800 metres high. These use 80Mpa 100Mpa concrete. Concrete can be a simple material, but mix design submissions are usually accompanied with many sets of test data, often requested by Consultants, the relevance of which is somewhat questionable. The important aspect with all the buildings & structures under construction is to ensure their long term service life with the use of high performance concrete, combined with high quality workmanship. Lack of locally available cement and aggregates means that most concrete in the region is produced from materials that are transported more than 100km from their centres of production. A 40 grade concrete is used for much of the work with typical slumps of about 160mm at the time of discharge. The concrete usually contains workability retention admixtures which have a typical 30mm slump reduction over a period of 120 minutes. Due to high ambient temperatures, flaked ice is used to control the initial concrete placing temperature, which is particularly important where thick sections are being placed. The rapid chloride permeability test is often
7 specified to measure the susceptibility of the concrete to chloride ingress, and values below 1000 coulombs are regularly obtained with typical values below 700 coulombs. The percentage water absorptions are normally below 1%. In reality the concrete is virtually impermeable, although some project specifications call for the addition of pore blocking admixtures to be included in the mix. Many large pours are carried out at night when the ambient temperatures are lower. During the summer months the ambient temperature often exceeds 55degC and all external construction work stops between the hours of 12pm 4pm. One of the major problems on construction sites is plastic shrinkage cracking of the concrete, often due to hot drying winds blowing across the site and typically affecting exposed flat slabs. In addition, the width of the cracks can be amplified by the effects of both thermal contraction and early drying shrinkage taking place. Therefore the need for good workmanship and especially the early application of moist curing cannot be over emphasized. Record breaking concrete But where is all this concrete being used? Dubai is currently the largest user of concrete in the Emirates, followed by Abu Dhabi. Only 4% of Dubai s income comes from oil, unlike its neighbour, which sits on about 10% of the world s oil reserves. Therefore it concentrates on service industries such as Banking & Tourism for most of its income and the emphasis is on developing the tourist playground of the future. Some projects would almost seem out of context, like a massive ski slope complete with real snow, which is the largest indoor skiing centre in the world. Plate 3. Dubai World. A giant leisure park more than twice the size of Disneyworld.
8 But under construction is Dubai World, a massive theme park twice the size of Disneyworld in the USA which will employ about100,000 people. Dubai Mall will be the world s largest shopping mall with 1000 stores in a 3million square metre area. The Princess Tower at over 100 stories is the largest residential building in the world, adjacent to Dubai Marina. Hyrdopolis, the world s first underwater hotel, is due for completion next year. Plate 4. Dubai Mall. The world s largest shopping mall. Plate 5. Hydropolis. The world s first underwater hotel. Due for completion in Visible from outer space, are three large artificial islands; Palm Island will have 2000 villas and 40 luxury hotels. Trump International hotel is
9 one of the centerpieces of the island but only 5km away the Burj al Arab hotel, currently the tallest hotel in the world sits on its own island It is the world s only 7stars hotel, complete with a swimming pool just below roof level, made from waterproof concrete, and its own helicopter pad. Plate 6. Palm Island. One of the largest artificial island complexes in the world luxury villas are constructed on the palm leaves. There will also be 40 luxury hotels. World famous celebrities have already purchased properties on this development which also has a monorail transportation system.
10 Plate 7. Some of the luxury villas on Palm Island. Plate 8. The Burj al Arab Hotel. Currently the tallest hotel in the world sits on its own island off the Dubai waterfront.
11 Plate 9. The Metro elevated rail system running between Dubai & Jebel Ali. However with all this record breaking construction, it is important not to loose track of all the more conventional construction work that is taking place both in Abu Dhabi and Dubai, in terms of buildings and structures. This ranges from housing, offices, a museum resembling the Louvre in France, bridges & general infrastructure work. One of the largest pours of self-compacting concrete in the Gulf was the 16,000m3 in a single pour for the base of the 72 floor Landmark Tower in Abu Dhabi. It was followed by an even larger pour of conventional concrete where more than 22,000m 3 were placed continually over a period of 35hrs for the base of the Sky Spiral Tower.
12 Plate 10. Casting the foundation of the Sky Spiral Tower. More than 22,000m3 of concrete were cast in a continuous single pour lasting 35 hours. This was the largest continuous pour in the Gulf. There are plans for a major development of Saadiyat Island off the coast of Abu Dhabi. This will be a landscaped low rise housing project. Plate 11. Saadiyat Bridge under construction in Abu Dhabi. Due for completion in Over 163,000 cubic metres of Ready Mixed Concrete are being used in its construction.
13 The initial project involves the construction of Saadiyat bridge linking the island with Abu Dhabi. The project involving the placing of 163,000m 3 of concrete is due for completion in December Al Reem Island in Abu Dhabi is a mix of luxury high & low rise development. Two 44 floor tower blocks have already been completed & by 2110 it will almost resemble Manhattan. Conclusion There are so many notable projects in the region that are under construction but it is not possible to address more than a few of them in this short paper. The significant aspect is the concentration on producing Green, ecologically friendly concrete, using advanced production equipment and stringent quality control; and in this respect the United Arab Emirates probably leads the world.
IS : Dr. S. RAVIRAJ
CONCRETE MIX PROPORTIONING IS 10262 : 2009 Dr. S. RAVIRAJ Professor of Civil Engineering JSS Science and Technology University S.J. College of Engineering Mysuru 570 006 ravirajs@sjce.ac.in 1 Introduction
More informationSUPPORTING A SUSTAINABLE FUTURE WITH MICROSILICA CONCRETE
SUPPORTING A SUSTAINABLE FUTURE WITH MICROSILICA CONCRETE Des King*, Elkem Materials South East Asia, Singapore 32nd Conference on OUR WORLD IN CONCRETE & STRUCTURES: 28-29 August 2007, Singapore Article
More informationKrystol Internal Membrane (KIM ) Guidelines and Procedures - NZ
Krystol Internal Membrane (KIM ) Guidelines and Procedures - NZ The use of Krystol Internal Membrane in Concrete Structures within New Zealand Product: The Krystol Waterproofing System consists of products
More informationCHAPTER 3 MATERIAL PROPERTIES AND MIX PROPORTIONS
45 CHAPTER 3 MATERIAL PROPERTIES AND MIX PROPORTIONS 3.1 GENERAL In the present investigation, it was planned to cast M40 & M50 grade concrete with and without supplementary cementitious material such
More informationHigh performance concrete incorporating fly ash, nano-silica (nano-sio2) and micro-silica (micro-sio2)
6 th International Conference on Structural Engineering and Construction Management 2015, Kandy, Sri Lanka, 11 th -13 th December 2015 SECM/15/076 High performance concrete incorporating fly ash, nano-silica
More information2010 International Concrete Sustainability Conference, Dubai, UAE 1
2010 International Concrete Sustainability Conference, Dubai, UAE 1 Achieving concrete sustainability using an integrated precast and admixture strategy 2010 International Concrete Sustainability Conference,
More informationStudy and Analysis of High Performance Concrete and Estimation of Concrete Strength
Study and Analysis of High Performance Concrete and Estimation of Concrete Strength 1 Swapnil Bhoir, 2 Nilam Adsul, 3 Shrikant Charhate 1,2,3 Dept. of Civil Engineering Abstract --The present day world
More informationI. INTRODUCTION. Keywords: Conventional Aggregate Concrete, Fly Ash, Silica Fume
GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES DURABILITY STUDY ON BLENDED CEMENT CONCRETE WITH FLY ASH SILICA Yaramala Pavani* *Assistant Professor, Vardhaman College of Engineering ABSTRACT Durability
More informationA Simplified Analytical Method of Shrinkage Stresses on Thick Concrete Walls
16 th International Conference on AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 16 May 26-28, 2015, E-Mail: asat@mtc.edu.eg Military Technical College, Kobry Elkobbah, Cairo, Egypt Tel : +(202) 24025292
More informationULTRA HIGH PERFORMANCE AND HIGH EARLY STRENGTH CONCRETE
ULTRA HIGH PERFORMANCE AND HIGH EARLY STRENGTH CONCRETE Mehdi Sadeghi e Habashi, Seraj Higher Education Institue, Iran 36th Conference on OUR WORLD IN CONCRETE & STRUCTURES: 14-16 August 2011, Singapore
More informationEarly Age Thermal Cracking Control In Mass Concrete Shearwalls Using High Strength SCC
Early Age Thermal Cracking Control In Mass Concrete Shearwalls Using High Strength SCC Des Guo, Metro Testing Laboratories (Burnaby), Canada Jimmy Li, Fast + Epp Structural Engineers, Canada JCI-RILEM
More informationFEBFLOW STANDARD WATER REDUCING PLASTICISER FOR CONCRETE
FEBFLOW STANDARD WATER REDUCING PLASTICISER FOR CONCRETE Description: Febflow Standard is a powerful plasticiser, which disperses and deflocculates the cement particles within a concrete mix. It can be
More informationCIV2226: Design of Concrete and Masonry Structures
CIV2226: Design of Concrete and Masonry Structures Concrete Technology... 2 Concrete Mix Design... 2 Portland Cement... 4 Supplementary Cementitious Materials... 5 Concrete Aggregates... 6 Chemical Admixtures...
More informationStructural System. Design Considerations Concrete Structures. Materials Formwork Labor Time
Structural System Understand Behavior of Elements in System & Load Transfer through Structure Joists and Beams Columns (and Walls) Beam-Column Joints One- or Two-way slabs Foundation (Footings, Mats) Design
More informationInternational Journal of Scientific & Engineering Research, Volume 7, Issue 4, April ISSN
International Journal of Scientific & Engineering Research, Volume 7, Issue 4, April-2016 156 PERFORMANCE OF POLYESTER AND POLYPROPYLENE FIBRES IN CONCRETE N.Venkata Ramana1, U.Raghu Babu2 and E.Aruna
More informationA Study on the Influence of Mineral Admixtures in Cementitious System Containing Chemical Admixtures
International Journal of Engineering Research and Development e-issn: 2278-067X, p-issn: 2278-800X, www.ijerd.com Volume 10, Issue 3 (March 2014), PP.76-82 A Study on the Influence of Mineral Admixtures
More informationMix Design For Concrete Roads As Per IRC:
Mix Design For Concrete Roads As Per IRC:15-2011 ABSTRACT: The stresses induced in concrete pavements are mainly flexural. Therefore flexural strength is more often specified than compressive strength
More informationChloride and sulphate concentration in concrete exposed to marine conditions
Chloride and sulphate concentration in concrete exposed to marine conditions H AI-Khaiat*, Kuwait University, Kuwait M N Haque, Kuwait University, Kuwait 27th Conference on OUR WORLD IN CONCRETE & STRUCTURES:
More informationEarth Friendly Concrete A sustainable option for tunnels requiring high durability
Arabian Tunnelling Conference & Exhibition Dec 10-11, 201 Dubai, United Arab Emirates Earth Friendly Concrete A sustainable option for tunnels requiring high durability Authors: (1) Tom Glasby, EFC Manager,
More informationImpact of Fly Ash and Silpozz as Alternative Cementitious Material in Crusher Dust Concrete [1]
Impact of Fly Ash and Silpozz as Alternative Cementitious Material in Crusher Dust Concrete [1] S. Jena, [2] K. C. Panda, [3] P. Sarangi [1] Assistant Professor, [2] Associate Professor, [3] Assistant
More informationMix Design For Concrete Roads As Per IRC
Mix Design For Concrete Roads As Per IRC-15-2002 ABSTRACT: The stresses induced in concrete pavements are mainly flexural. Therefore flexural strength is more often specified than compressive strength
More informationWhat s in the Mix. Aim of this presentation Overview of mix design Overview of constituents Cement Aggregates Coarse Fine.
What s in The Mix What s in the Mix Aim of this presentation Overview of mix design Overview of constituents Cement Aggregates Coarse Fine Water SCM s Aim of a Mix Design Mix Design is a Scientific Art
More informationEssence of admixtures in concrete
Essence of admixtures in concrete East African 1 st Cement, Concrete, and Energy Summit March 17-19, 2016 Addis Ababa, Ethiopia Yoseph Birru Gebregiorgis (PhD), Executive director, Ethiopian Construction
More informationEffect of alkaline-resistant glass fibre on compressive strength of lightweight foamed concrete
Effect of alkaline-resistant glass fibre on compressive strength of lightweight foamed concrete Hanizam Awang*, Universiti Sains Malaysia, Malaysia N M Noordin, Universiti Sains Malaysia, Malaysia 27th
More informationExperimental Study of RHA Concrete
Experimental Study of RHA Concrete Chandraul Kirti 1, Singh Manindra Kumar 2, Saxena Anil Kumar 3, Arora T. R. 4 1 M.Tech. Student, 2 M.Tech. Student, 3 Associate Professor, 4 Head Of Department 1,2,3,4
More informationInfluence of Silica Fume & Recycled Concrete Aggregates on Mechanical Properties of Concrete
Influence of Silica Fume & Recycled Concrete Aggregates on Mechanical Properties of Concrete Ranjodh Singh 1, Sudhir Arora 2 1 Assistant Professor, DAV University, Jalandhar, 2 Assistant Professor at DAV
More informationOptimizing Concrete Pavement Mixes with Slag Cement
WCPA Workshop Optimizing Concrete Pavement Mixes with Slag Cement WCPA Workshop February 12 th, 2015 Oshkosh, WI Bruce Blair Presentation February 12, 2015 1 of 41 Today s Topics What is slag cement? How
More informationFrequently Asked Questions (FAQ s) about Concrete Driveways
Frequently Asked Questions (FAQ s) about Concrete Driveways What type of concrete mix should be used? Your local ready mix producer and your contractor will assist you in ensuring the proper concrete mix
More informationAnalysis on Mix Design of High Strength Concrete (M100)
Analysis on Mix Design of High Strength Concrete (M100) ANKIT KUMAR VARDHAN 1, HIMANSHU JOHRI 2, NITIN GUPTA 3 1,2,3B.TECH Student 3 rd Year, Department of Civil Engineering ABES Engineering College Ghaziabad,Ghaziabad-201009
More informationStudy of Mechanical and Durability Properties of High Performance Self Compacting Concrete with Varying Proportion of Alccofine and Fly Ash
Study of Mechanical and Durability Properties of High Performance Self Compacting Concrete with Varying Proportion of Alccofine and Fly Ash Dr. Sinha Deepa A. Associate Professor, Structural Engineering
More informationStudy On Properties Of High Strength Silica Fume Concrete Withpolypropylene Fibre
Study On Properties Of High Strength Silica Fume Concrete Withpolypropylene Fibre R.Karthi 1, Dr. P. Chandrasekaran 2 M.E., Ph.D., PG Student, Department of Civil Engineering, Kongu Engineering College,
More informationMaking of concrete mixtures with minimum amount of cement Hanish Kumar 1, Dr. Arvind Dewangan 2
Making of concrete mixtures with minimum amount of cement Hanish Kumar 1, Dr. Arvind Dewangan 2 1, 2 HCTM Kaithal, Haryana, India ABSTRACT: An experiment program was conducted with the purpose to find
More informationHIGH PERFORMANCE SELF-CONSOLIDATING CONCRETE FOR NORTH AMERICA S TALLEST REINFORCED CONCRETE BUILDING: TRUMP INTERNATIONAL HOTEL AND TOWER, CHICAGO
HIGH PERFORMANCE SELF-CONSOLIDATING CONCRETE FOR NORTH AMERICA S TALLEST REINFORCED CONCRETE BUILDING: TRUMP INTERNATIONAL HOTEL AND TOWER, CHICAGO William F. Baker (1), Matthew R. Houson (2), D. Stanton
More informationEXPERIMENTAL INVESTIGATION ON MECHANICAL PROPERTIES OF POLYPROPYLENE FIBRE INCORPORATED CONCRETE WITH SILICA FUME
International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 5, September-October 2016, pp. 09 16, Article ID: IJCIET_07_05_002 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=5
More informationSTRENGTH AND RHEOLOGICAL PROPERTIES OF FIBER REINFORCED SELF COMPACTING CONCRETE WITH ALCCOFINE
SSRG International Journal of Civil Engineering- (ICRTCETM-0) - Special Issue - April 0 International Conference on Recent Trends in Civil Engineering, Technology and Management (ICRTCETM-0) STRENGTH AND
More informationEFFECT OF PARTIAL REPLACEMENT OF CEMENT BY SILICA FUMES ON MECHANICAL PROPERTIES OF CONCRETE
EFFECT OF PARTIAL REPLACEMENT OF CEMENT BY SILICA FUMES ON MECHANICAL PROPERTIES OF CONCRETE Keyur Shah 1, Urvesh Barot 2, Samarth Jariwala 3, Avinash Patel 4, Priyank Jariwala 5 Assistant Professor, Civil
More informationConcrete Mix Design. Introduction
Concrete Mix Design Introduction The process of selecting suitable ingredients of concrete and determining their relative amounts with the objective of producing a concrete of the required, strength, durability,
More informationEXPERIMENTAL INVESTIGATION ON STRENGTH AND DURABILITY CHARACTERISTICS OF HIGH PERFORMANCE CONCRETE USING GGBS AND MSAND
EXPERIMENTAL INVESTIGATION ON STRENGTH AND DURABILITY CHARACTERISTICS OF HIGH PERFORMANCE CONCRETE USING GGBS AND MSAND Christina Mary V. and Kishore CH. Faculty of Building and Environment, Sathyabama
More informationDENKA POWER CSA Low Dosage Expansive Additives
strain ( 10-6 ) at Day 7 at Day 28 DENKA POWER CSA Low Dosage Expansive Additives History When cracking occurs in concrete structures, water ingress into the concrete interior through the cracks occurs
More informationCivil Engineering Materials SAB 2112
CONTENT SCHEDULE 1 st Meeting Civil Engineering Materials SAB 2112 Physical & Mechanical Properties of Aggregates Dr Mohamad Syazli Fathi 1. Introduction, cement manufacturing process, types of cement,
More informationFresh concrete can be lifted from the ground level to the upper floor level by
3a Concreting Operation 1. Concrete lifting 1.1 Hoists Fresh concrete can be lifted from the ground level to the upper floor level by hoists. However, the further distribution from the hoist to placing
More informationAnalysis on Mix Design of High Strength Concrete (M90)
Analysis on Mix Design of High Strength Concrete (M90) CHAITANYA RAJ 1, DIVYANSHI TYAGI 2, GAURAV BUDHANI 3 B.TECH STUDENT 3rd Year Department of Civil Engineering ABES Engineering College Ghaziabad ---------------------------------------------------------------------***---------------------------------------------------------------------
More informationDesign Of High Performance Concrete By The Partial Replacement of Cement With Silica Fume using M60 Grade
International Journal of Technical Innovation in Modern Engineering & Science (IJTIMES) Impact Factor: 5.22 (SJIF-217), e-issn: 2455-2585 Volume 4, Issue 8, August-218 Design Of High Performance Concrete
More informationPerformance of High Strength Concrete Prepared by Partially Replacing Fine Aggregate with Bottom Ash
Performance of High Strength Concrete Prepared by Partially Replacing Fine Aggregate with Bottom Ash Kylasnath M 1, Ranjan Abraham 2 1 P.G. Student, Department of Civil Engineering, Ilahia College of Engineering
More informationUnderstanding its Effects on Coatings MOISTURE IN CONCRETE. VersaFlex. Copyright 2008 I N C O R P O R A T E D
Understanding its Effects on Coatings MOISTURE IN CONCRETE Copyright 2008 Moisture, ph and Alkalies Freshly placed Portland Cement ph 12.5 Provides passivation of embedded steel Carbon Dioxide and ambient
More informationInternational Journal of Scientific & Engineering Research, Volume 7, Issue 10, October ISSN
International Journal of Scientific & Engineering Research, Volume 7, Issue 1, October-216 162 Evaluation of the Properties of Bentonite Concrete with and without Steel Fiber Amritha E.K and Neethu Paul
More informationSTUDY ON MECHANICAL PROPERTIES OF HIGH STRENGTH CONCRETE USING COCONUT SHELL AS COARSE AGGREGATE
Int. J. Chem. Sci.: 14(S1), 2016, 247-256 ISSN 0972-768X www.sadgurupublications.com STUDY ON MECHANICAL PROPERTIES OF HIGH STRENGTH CONCRETE USING COCONUT SHELL AS COARSE AGGREGATE M. SANTHOSH KUMAR a,
More informationEXPERIMENTAL INVESTIGATION ON PARTIAL REPLACEMENT OF FINE AGGREGATE WITH SABBATH (CUDDAPAH STONE) STONE
EXPERIMENTAL INVESTIGATION ON PARTIAL REPLACEMENT OF FINE AGGREGATE WITH SABBATH (CUDDAPAH STONE) STONE POTU KARTHEEK YADAV* 1, B. BALAKRISHNA BHARATH* 2 * 1 ( PG Student, Department Of Structural Engineering,
More informationApplication of Formtex Controlled Permeability Formwork in the Arabian Gulf
Fibertex A/S Application of Formtex Controlled Permeability Formwork in the Arabian Gulf Documentation Report December 2002 Fibertex A/S Application of Formtex Controlled Permeability Formwork in the Arabian
More informationSECTION CAST IN PLACE CONCRETE FOR FLOOR SLABS ON GRADE THAT WILL RECEIVE SEMI-PERMEABLE OR IMPERMEABLE FLOOR FINISHES
GUIDE SPECIFICATION SECTION CAST IN PLACE CONCRETE FOR FLOOR SLABS ON GRADE THAT WILL RECEIVE SEMI-PERMEABLE OR IMPERMEABLE FLOOR FINISHES PART 1 - SCOPE 1.01 WORK INCLUDED: 1.1.1 This guide covers the
More informationCHAPTER 6 POLYPROPYLENE FIBRE REINFORCED GEOPOLYMER CONCRETE COMPOSITES
113 CHAPTER 6 POLYPROPYLENE FIBRE REINFORCED GEOPOLYMER CONCRETE COMPOSITES 6.1 GENERAL This chapter describes the effect of addition of polypropylene fibres on the strength characteristics of geopolymer
More informationSTUDY OF MIX DESIGN FOR HIGH PERFORMANCE CONCRETE
STUDY OF MIX DESIGN FOR HIGH PERFORMANCE CONCRETE SACHIN PATIL E-mail: jay40308@rediffmail.com Abstract In present research work a thorough study and analysis of Mix Design of High Performance Concrete
More informationEffect of Steam Curing on the Strength of Concrete by Using Mineral Admixtures
International Research Journal of Engineering and Technology (IRJET) e-issn: 2395-56 Effect of Steam Curing on the of Concrete by Using Mineral Admixtures Seema G N 1, Sneha S R 2, Suneel Kagi 3, Tilak
More informationWhat s in the Mix. Aim of this presentation Basic principles of mix design Overview of constituents Cement Aggregates Coarse Fine.
What s in The Mix What s in the Mix The aim of this lecture is not to teach you how to perform a mix design but hopefully to help you understand the mix and how it is designed. Aim of this presentation
More informationFundamentals of Concrete
Components Cement Water Fine Aggregate Coarse Aggregate Fundamentals of Range in Proportions Advantages of Reducing Water Content: Increased strength Lower permeability Fundamentals of Increased resistance
More informationSTUDY OF MECHANICAL PROPERTIES OF CONCRETE USING CEMENTITIOUS MATERIALS
STUDY OF MECHANICAL PROPERTIES OF CONCRETE USING CEMENTITIOUS MATERIALS Guided By:- Dr. Ami H. Shah Prepared by :- Patel Vivek p. Patel Maulik C. Patel Sapneel D. Chaudhary Anil J. Introduction Objective
More informationConcrete. from Grey to Green. Concrete Technology
Concrete from Grey to Green Concrete Technology Gammon Construction Limited has been involved in a wide range of construction projects in Asia for over 50 years. We are the marketleading construction contractor
More informationPRESTRESSED CONCRETE STRUCTURES. Amlan K. Sengupta, PhD PE Department of Civil Engineering Indian Institute of Technology Madras
PRESTRESSED CONCRETE STRUCTURES Amlan K. Sengupta, PhD PE Department of Civil Engineering Indian Institute of Technology Madras Module 01: Introduction, Prestressing Systems and Material Properties Lecture
More informationExperimental Study on Rice Husk Ash in Concrete by Partial Replacement
International Journal of ChemTech Research CODEN (USA): IJCRGG, ISSN: 0974-4290, ISSN(Online):2455-9555 Vol.10 No.8, pp 812-819, 2017 Experimental Study on Rice Husk Ash in Concrete by Partial Replacement
More informationHigh Volume Fly Ash Concrete Building with Blended Cement at Amethi
High Volume Fly Ash Concrete Building with Blended Cement at Amethi First of its kind in India The Associated Cement Companies Limited Anil Kumar Banchhor Akb@acccement.com 1 Use of Fly Ash in Concrete
More informationHigh Strength Self Compacting Concrete with Blended Cement containing Agricultural Waste
High Strength Self Compacting Concrete with Blended Cement containing Agricultural Waste Dr. Tahir Kibriya Senior Consulting Engineer, Black & Veatch, Toronto, Canada (ex Head of Civil Engineering / Faculty,
More informationDevelopment and Application of High Volume Fly Ash Concrete (HVFAC) (Case Studies of Some Demonstration Projects) (Grasim Experience)
Development and Application of High Volume Fly Ash Concrete (HVFAC) (Case Studies of Some Demonstration Projects) (Grasim Experience) High Volume Fly Ash Concrete in Marine Construction Work in Mumbai
More informationAdmixtures-Section 924
Admixtures-Section 924 - Qualified Products List - Types include: - Air Entraining - Water-Reducing (Type A) - Accelerating (Type C) - Water-Reducing & Retarding (Type D) - Water-Reducer & Accelerating
More informationREQUIREMENTS FOR CONCRETE MIX DESIGN
REQUIREMENTS FOR CONCRETE MIX DESIGN Requirements of concrete mix design should be known before calculations for concrete mix. Mix design is done in the laboratory and samples from each mix designed is
More informationSTUDY ON MECHANICAL PROPERTIES OF CONCRETE USING SILICA FUME AND QUARTZ SAND AS REPLACEMENTS
Volume 119 No. 14 218, 151-157 ISSN: 1314-3395 (on-line version) url: http://www.ijpam.eu ijpam.eu STUDY ON MECHANICAL PROPERTIES OF CONCRETE USING SILICA FUME AND QUARTZ SAND AS REPLACEMENTS Gumma Soumya¹,
More informationPumice Pozz vs. Fly Ash
Pumice Pozz vs. Fly Ash Extensive ASTM-standard Research Quantifies Pumice as the Ideal Replacement for Fly Ash in Concrete IN EACH AND EVERY ONE of the concrete performance categories that matter, clean,
More informationResidential Concrete 101
PHRC Webinar Series Tuesday, December 13th @ 1pm Residential Concrete 101 Christopher Hine Pennsylvania Housing Research Center 219 Sackett Building University Park, PA 16802 P: 814 865 2341 phrc@psu.edu
More informationComparison of Properties of Fresh and Hardened Concrete Containing Finely Ground Glass Powder, Fly Ash, or Silica Fume
Article Comparison of Properties of Fresh and Hardened Concrete Containing Finely Ground Glass Powder, Fly Ash, or Silica Fume Rungrawee Wattanapornprom a, and Boonchai Stitmannaithum b Faculty of Engineering,
More informationCOMPARISION OF NON DESTRUCTIVE TESTS RESULTS FOR FIRE AFFECTED AND UNAFFECTED CONCRETE STRUCTURE
COMPARISION OF NON DESTRUCTIVE TESTS RESULTS FOR FIRE AFFECTED AND UNAFFECTED CONCRETE STRUCTURE M Yaqub*, University of Engineering & Technology, Taxila, Pakistan 30th Conference on OUR WORLD IN CONCRETE
More informationEFFECT OF SILICA FUME ON HYDRATION HEAT AND STRENGTH DEVELOPMENT OF HIGH STRENGTH CONCRETE
CD01-004 EFFECT OF SILICA FUME ON HYDRATION HEAT AND STRENGTH DEVELOPMENT OF HIGH STRENGTH CONCRETE 1 M. Nili, A. Ehsani 2 1 Ass. Professor, Civil Eng. Dept. Faculty of Eng. Bu Ali Sina University, Hamedan,
More informationSELF COMPACTING CONCRETE FOR LNG TANKS CONSTRUCTION IN TEXAS
SELF COMPACTING CONCRETE FOR LNG TANKS CONSTRUCTION IN TEXAS Olivier Bernabeu and Carl Redon Concrete Section, Saipem, France Abstract Two LNG tanks commissioned by Freeport LNG (Texas) used pumped Self
More informationMechanical properties of high strength mortar for repair works
American Journal of Engineering Research (AJER) 2013 American Journal of Engineering Research (AJER) e-issn : 2320-0847 p-issn : 2320-0936 Volume-4 pp-11-16 www.ajer.org Research Paper Open Access Mechanical
More informationCOMPATIBILITY OF SUPERPLASTICIZER BS FUTURA PCX 107 WITH PPC CEMENT FOR M35 GRADE OF CONCRETE
COMPATIBILITY OF SUPERPLASTICIZER BS FUTURA PCX 107 WITH PPC CEMENT FOR M35 GRADE OF CONCRETE Amandeep Singh¹, Dr Aradhana Mehta² 1B.Tech Student, CCET, Chandigarh 2Assistant Professor, Department of Civil
More informationInvestigation of Rice Husk Ash Cementitious Constituent in Concrete
Investigation of Rice Husk Ash Cementitious Constituent in Concrete Oyejobi, D. O. *, Abdulkadir, T. S. and Ajibola, V. Department of Civil Engineering, University of Ilorin, Ilorin, Nigeria. Oyejobi,
More informationSTRENGTH PROPERTIES OF PARTIAL REPLACEMENT OF COCONUT SHELLS AS COARSE AGGREGATE IN CONCRETE
Journal of Research in Engineering and Applied Sciences STRENGTH PROPERTIES OF PARTIAL REPLACEMENT OF COCONUT SHELLS AS COARSE AGGREGATE IN CONCRETE K. Rajasekhar and K. Spandana Assistant Professor, Department
More informationEVALUATION OF DURABILITY OF ODOT PRESTRESSED/PRECAST CONCRETE IN OHIO
EVALUATION OF DURABILITY OF ODOT PRESTRESSED/PRECAST CONCRETE IN OHIO BY NICK SCAGLIONE, PRESIDENT CONCRETE RESEARCH & TESTING, LLC 400 FRANK ROAD COLUMBUS, OHIO 43207 SEPTEMBER 2002 PREPARED FOR THE OHIO
More informationAn Experimental Study On Strength & Durability Of Concrete Using Partial Replacement Of Cement With Nano Silica
An Experimental Study On Strength & Durability Of Concrete Using Partial Replacement Of Cement With Nano Silica Karthika P Abstract: Nano science and technology is a new field of emergence in materials
More informationAdmixtures. Lecture No. 12
Admixtures Lecture No. 12 Artificial Pozzolans Fly ash Blast Furnace Slag Silica Fume Rice Husk ash Metakaoline Surkhi. Fly Ash Fly ash is finely divided residue resulting from the combustion of powdered
More informationCharacterization and Application of Rice Husk Ash As Pozzolanic Material In Concrete
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-1684,p-ISSN: 2320-334X, Volume 12, Issue 3 Ver. III (May. - Jun. 2015), PP 28-32 www.iosrjournals.org Characterization and Application
More informationACI MANUAL OF CONCRETE PRACTICE-2009
ACI MANUAL OF CONCRETE PRACTICE-2009 The ACI Manual of Concrete Practice is a six-part compilation of current ACI standards and committee reports. -ACI117-06 to ACI224.3R-95(08) Part 2-ACI 225-99(05) to
More informationMODELING THE EARLY AGE BEHAVIOR OF SELF-COMPACTING CONCRETE USING COAL ASH IN VIETNAM
MODELING THE EARLY AGE BEHAVIOR OF SELF-COMPACTING CONCRETE USING COAL ASH IN VIETNAM M. K. Sam*, Papua New Guinea University of Technology, Papua New Guinea Troung Thi Hong Thuy, Institute of Building
More informationChapter VI Mix Design of Concrete
CIV415 CONCRETE TECHNOLOGY Chapter VI Mix Design of Concrete Assist.Prof.Dr. Mert Yücel YARDIMCI Advanced Concrete Technology - Zongjun Li 1 Mix Design Mix design can be defined as the processes of selecting
More informationStudy of High Performance Concrete with Silica Fume and Glass Fibre
Study of High Performance Concrete with Silica Fume and Glass Fibre S. Durai 1, S.C. Boobalan 2, P. Muthupriya 3 and R.Venkatasubramani 4 The Asian Review of Civil Engineering ISSN 2249-6203 Vol. 2 No.
More informationISSN: Page 45
Investigation on Palm Kernel Ash as Partial Cement Replacement in High Strength Concrete Olowe K. O. 1, Adebayo V. B. 2 1(Civil Engineering Department, Afe Babalola University, Ado Ekiti, Nigerian) 2 (Civil
More informationA Case Study on Strength Properties of Partially Replaced Recycled Aggregate and Steel Fibers to a Nominal Concrete
ISSN 2278 0211 (Online) A Case Study on Strength Properties of Partially Replaced Recycled Aggregate and Steel Fibers to a Nominal Concrete A. R. Pradeep Assistant Professor, Department of Civil Engineering,
More information2 LITERATURE REVIEW IJSER
International Journal of Scientific & Engineering Research, Volume 7, Issue 4, April-2016 171 An Experimental Study on Strength & Durability of Concrete Using Partial Replacement of Cement with Nano Silica
More informationAn Investigation of Steel Fiber Reinforced Concrete with Fly Ash
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) ISSN: 2278-1684 Volume 4, Issue 5 (Nov-Dec. 2012), PP 01-05 An Investigation of Steel Fiber Reinforced Concrete with Fly Ash Khadake S.N. 1,
More informationMICHIGAN CONCRETE ASSOCIATION GUIDE FOR COLD WEATHER CONCRETING
MICHIGAN CONCRETE ASSOCIATION GUIDE FOR COLD WEATHER CONCRETING MCA:SMW 1 of 6 10-25-11 For the purposes of this document and the MCA Special Provision for Cold Weather Concreting, cold weather is determined
More informationCellular Lightweight Concrete Technical Specifications
Cellular Lightweight Concrete Technical Specifications Cellular Lightweight Concrete building systems have been successfully developed and implemented for more than 85 years to create cost-effective, functional
More informationA STUDY ON THE ENHANCEMENT OF DURABILITY PERFORMANCE OF FACED SLAB CONCRETE IN CFRD
18 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS Abstract The main purpose of this research was to enhance the durability in both the design and construction of dams. Especially, in case of rockfill
More information3/4/2015 COLD WEATHER CONCRETE PRACTICES SUCCESSFUL COLD WEATHER CONCRETING
COLD WEATHER CONCRETE PRACTICES CRMCA SOUTHERN MARKETING O SUCCESSFUL COLD WEATHER CONCRETING 1 2 3 ACI DEFINITION OF COLD WEATHER Cold Weather - A period when, for more than 3 consecutive days, the following
More informationIMPROVEMENT OF CONCRETE DURABILITY BY COMPLEX MINERAL SUPER-FINE POWDER
277 IMPROVEMENT OF CONCRETE DURABILITY BY COMPLEX MINERAL SUPER-FINE POWDER Chen Han-bin, Chen Jian-xiong, Xiao Fei, and Cui Hong-ta College of Material Science, Chongqing University, Chongqing, PRC Abstract
More informationConcrete works in Highway Engineering
Concrete works in Highway Engineering INTRODUCTION TO CONCRETE Concrete has been used as a construction material in largest quantity for several decades due to its excellent engineering properties and
More informationSTRENGTH AND BEHAVIOUR OF GEOPOLYMER CONCRETE BEAMS
ISSN (Online) : 2319-8753 ISSN (Print) : 2347-6710 International Journal of Innovative Research in Science, Engineering and Technology An ISO 3297: 2007 Certified Organization, Volume 2, Special Issue
More informationFirst field trial commences in USA of Australia s super strength carbon enriched concrete additive
ACN 109 200 900 AUSTRALIAN SECURITIES EXCHANGE ANNOUNCEMENT 23 February 2015 First field trial commences in USA of Australia s super strength carbon enriched concrete additive Eden Energy Ltd ( Eden )
More informationPrepared by Elie F. Issa, Eng. D.E.C. August 2016
Prepared by Elie F. Issa, Eng. D.E.C. August 2016 SAMA BEIRUT Sama Beirut is the tallest reinforced concrete tower in Lebanon soaring at a height of 220m from ground level Project Entities Owner Antonios
More informationCurrent Developments in Concrete Construction. S A Reddi Retd.) Gammon India Ltd.
Current Developments in Concrete Construction S A Reddi Dy.. MD (Retd( Retd.) Gammon India Ltd. Mass Concrete Pours Typical Structures With Mass Concrete Pours General Overview Definitions & Standards,
More informationIndia, Keywords- fly ash, silica fume, compressive strength, tensile strength. (C)Global Journal Of Engineering Science And Researches
GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES REDUCING THE ENVIRONMENTAL IMPACT OF CONCRETE BY USING OF HIGH AMOUNT OF CALCIUM FLY ASH Eeshwar Ram.J* 1 & P.Mohana Ganga Raju 2 *1&2 Department of
More informationATLANTIC TESTING LABORATORIES Hot Weather Concreting
ATLANTIC TESTING LABORATORIES Hot Weather Concreting ACI 305R ACI 305.1 CNY Engineering Expo November 11, 2013 Topics of Discussion 5 Essentials of Quality Concrete Hot Weather Defined by ACI Potential
More informationINVESTIGATION INTO THE USE OF MICROSILICA AND FLY ASH IN SELF COMPACTING CONCRETE
www.arpapress.com/volumes/vol24issue2/ijrras_24_2_03.pdf INVESTIGATION INTO THE USE OF MICROSILICA AND FLY ASH IN SELF COMPACTING CONCRETE Victor Ajileye Faseyemi Technical Manager Al Andalus Factory for
More information