3D Concrete Printing - from material design to extrusion. Annual Civil Engineering Workshop at Ecole Centrale de Lille July, 2017
|
|
|
- Bartholomew Nash
- 6 years ago
- Views:
Transcription
1 3D Concrete Printing - from material design to extrusion Annual Civil Engineering Workshop at Ecole Centrale de Lille July, 2017
2 3D Concrete Printing 3D Concrete Printing refers to the process used to synthesize a 3D model in successive layers of material to create an object, e.g. a concrete wall Robot-based 3D Printing Process: ATERIALS CONCRETE IXER CONCRETE PUP ROBOT CONTROL CONCRETE EXTRUSION REINFORCEENT DESIGN Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 2
3 ATERIALS Fresh concrete is the filament: Similar materials to that of concrete ax. particle size (up to 2.0 mm) Concrete admixtures aterial challenges: Pumpability vs. Buildability Concrete rheology (fresh state) Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 3
4 ATERIALS Concrete properties and mix design Stress 10Pa Hardening Test device - layer deformation measurements 1Pa Very-early age properties Setting 100kPa ~10kPa Thixotropy Yield stress t = 0 t = few minutes Time (t) Cement hydration Concrete admixtures Strength development Drying shrinkage... Nothing we do not know... But now we need all of it at once and with high precision Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 4
5 ATERIALS Buildability of fresh concrete (without the use of accelerators) Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 5
6 CONCRETE IXER Batch process: Concrete composition is constant Fresh-state properties can be adjusted by adding admixtures while printing Continuous mixing: Concrete composition is adjustable Fresh and hardened-state properties can be adjusted while printing Source: Tec ixing plant at DTI s Concrete Centre Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 6
7 CONCRETE IXER Feedback system in a continuous mixing production process: Production phase Pumping phase Printing phase Increase robustness of the production process Enable the production of functionally-graded concrete elements Cement Aggregates Stage 1 Stage 2 Stage 3 Dry mix Wet mix Pump Stage 4 Nozzle Funtionally-graded concrete sample Source: IT Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 7
8 CONCRETE PUP Peristaltic concrete pump: Pulsating extrusion (poor controllability) Large equipment for initial tests Progressive cavity pump: Controlled extrusion (rotor-stator) Enables high-resolution printing Low oozing (preditable material flow) Suitable for high-viscosity materials Source: PC Endless-piston principle (True positive displacement) Source: PC Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 8
9 CONCRETE PUP Progressive cavity pump 3D Printed prototype DTI s progressive cavity pump Increase controlability and reliability of the printing process Production phase Pumping phase Printing phase Stage 4 Nozzle Cement Aggregates Stage 1 Stage 2 Stage 3 Dry mix Wet mix Pump Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 9
10 CONCRETE EXTRUSION Passive robot nozzle: The extrusion is controlled by a pump and the robot nozzle works as a dispenser that defines the shape of the printed layers. Active robot nozzle: The extrusion is controlled at the nozzle by a pump, enabling great precision and addition of admixtures during extrusion. Source: Total Kustom Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 10
11 CONCRETE EXTRUSION Nozzle experiments (3D Printed Nozzles) Concrete buildability = f(properties at very-early age, e.g. yield stress) Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 11
12 3D Concrete Printing ATERIALS CONCRETE IXER CONCRETE PUP ROBOT CONTROL CONCRETE EXTRUSION REINFORCEENT DESIGN VERY-EARLY AGE PROPERTIES ROBUSTNESS FEEDBACK SYSTE RELIABILITY AWARENESS (SAFETY) ROBUSTNESS & PRECISION TRANSVERSAL REINFORCEENT TECHNICAL STANDARDS RETHINK DESIGN ETHODS 3D CONCRETE PRINTING INTERDISCIPLINARITY Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 12
13 3D Concrete Printing Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 13
14 3DCP: Knowledge Network 3D Printet Byggeri on LinkedIn Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute 14
15 Thank you for your attention! Reference to this presentation: Leal da Silva, W.R. (2017). 3D Concrete Printing - from material design to extrusion. [Presentation Slides] Retrieved from Danish Technological Institute website: Wilson Ricardo Leal da Silva Consultant, Civil Engineer, Ph.D. Concrete Centre obile wrls@teknologisk.dk Annual Civil Engineering Workshop at Ecole Centrale de Lille (ACE Workshop 2017) Danish Technological Institute
3D Concrete Printing - Technological issues in concrete mix design and extrusion
3D Concrete Printing - Technological issues in concrete mix design and extrusion Technical visit to the National Institute of Standards and Technology (NIST) July 12th, 2017 3D Concrete Printing 3D Concrete
WHY IS RHEOLOGY IMPORTANT FOR SHOTCRETE AND HOW IT CAN BE IMPROVED
WHY IS RHEOLOGY IMPORTANT FOR SHOTCRETE AND HOW IT CAN BE IMPROVED by Ezgi Yurdakul, PhD Better Concrete Conference Ames, IA What is shotcrete? Shotcrete (aka sprayed concrete) is concrete placed by a
Sprayed Concrete. Solutions for Underground Construction
Solutions for Underground Construction SprayedConcrete_brochure_EN.indd 1 9/16/13 11:49 AM 2 3 Master Builders Solutions from BASF The Master Builders Solutions brand brings all of BASF s expertise together
Plastic Fiber Concrete Design and 3D Printing Techniques
Plastic Fiber Concrete Design and 3D Printing Techniques Idea Presentation: Qingli (Barbara) Dai Michigan Technological University NSF Workshop on Additive Manufacturing for Civil Infrastructure Design
Admixtures State of the Industry Joseph A. Daczko, FACI
Admixtures State of the Industry Joseph A. Daczko, FACI 67 th Annual Concrete Conference University of Minnesota December, 2017 Outline Admixtures for Concrete Definition Types The multi-faceted demands
Automated Construction of Expeditionary Structures (ACES)
Automated Construction of Expeditionary Structures (ACES) Michael P. Case, Ph.D. Program Manager Megan A. Kreiger, MS Design and Build Team Leader NSF Workshop on Additive Manufacturing (3D-Printing for
HANDS-ON TRAINING: MATERIALS AND MIX DESIGN
Fundamentals of Concrete HANDS-ON TRAINING: MATERIALS AND MIX DESIGN LEARNING OBJECTIVES Upon completing this program, the participant should be able to: 1. Identify the common materials used for concrete
Shotcrete System TECHNICAL BULLETIN
Shotcrete System TECHNICAL BULLETIN 1 04.01.2016 TABLE OF CONTENTS 1. TYTRO SHOTCRETE SYSTEM... 1 1.1. Synergetic benefits of using the TYTRO Admixture Series... 3 2. APPLICATION OF TYTRO RC... 6 2.1.
Introductory Chapter
Introductory Chapter Asian Concrete Model Code 2014, Introductory Chapter TABLE OF CONTENTS DEFINITIONS...3 1 INTRODUCTION... 8 1.1 SCOPE... 8 1.2 DOCUMENT ORGANISATION... 8 1.3 GENERAL PRINCIPLES... 8
NEW PERFORMANCE CRITERIA FOR FRESH TREMIE CONCRETE
NEW PERFORMANCE CRITERIA FOR FRESH TREMIE CONCRETE Karsten Beckhaus (1), Martin Larisch (2), Habib Alehossein (3,4) (1) BAUER Spezialtiefbau GmbH, Deutschland (2) Keller Australia Pty Ltd, Australia (3)
Properties of Concrete. Properties of Concrete. Properties of Concrete. Properties of Concrete. Properties of Concrete. Properties of Concrete
CIVL 1112 Contrete Introduction from CIVL 1101 1/10 Concrete is an artificial conglomerate stone made essentially of Portland cement, water, and aggregates. While cement in one form or another has been
IMPLEMENTATION OF A CONTOUR CRAFTING SYSTEM TO A 3-DIMENSIONAL CONCRETE PRINTER
10th International DAAAM Baltic Conference "INDUSTRIAL ENGINEERING" 12-13 May 2015, Tallinn, Estonia IMPLEMENTATION OF A CONTOUR CRAFTING SYSTEM TO A 3-DIMENSIONAL CONCRETE PRINTER Nylund, J.; Järf, A.;
The Effect of Mixing Energy and Shear Rate on the Thickening Time of Cement Slurry
Leonardo Journal of Sciences ISSN 1583-233 Issue 13, July-December 28 p. 78-89 The Effect of Mixing Energy and Shear Rate on the Thickening Time of Cement Slurry Department of Petroleum Engineering, University
Real Solutions for Concrete Mix Design
oncrete onference, Oct. 2008 Real Solutions for oncrete Mix Designs Real Solutions for oncrete Mix Design Either you re part of the solution, or you re part of the problem. -Eldridge leaver Pogo - 1971
OPTIMIZED 3/4" GRADATION LIGHTWEIGHT AGGREGATE REPORT
OPTIMIZED 3/4" GRADATION LIGHTWEIGHT AGGREGATE REPORT PREPARED BY: JODY WALL, P.E. DIRECTOR OF RESEARCH AND DEVELOPMENT CAROLINA STALITE COMPANY RESEARCH LAB GOLD HILL, NORTH CAROLINA Optimized 3/4" Gradation
Solutions for Underground Construction. Sprayed Concrete
Solutions for Underground Construction Sprayed Concrete Sprayed Concrete from Master Builders Solutions Master Builders Solutions from BASF The Master Builders Solutions brand brings all of BASF s expertise
Architectural Concrete in Hot Weather. Project Basics. Project Basics RAFAEL HERNANDEZ AIRPORT AIRCRAFT FIREFIGHTING STATION 7/26/2012
Jose R. Gaya, P.E., M(CE) JR Technical and Development Architectural Concrete in Hot Weather Fernando I. Buxo, P.E. Concrete Engineering Technologies Spring 2012 Convention March 18 21, Dallas, TX Project
LAFARGE. Tercem 3000 Blended Hydraulic Cement. Provides flexibility in concrete proportioning to assist in achieving: Higher Ultimate Strength
LAFARGE Blended Hydraulic Cement Provides flexibility in concrete proportioning to assist in achieving: Higher Ultimate Strength Improved Durability Reduced Permeability Improved Rheology Better Finishability
3/4/2015 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
PREFABRICATED LOAD BEARING WALL PANELS EFFECTIVE TECHNOLOGIES FOR EARTH STRUCTURES
PREFABRICATED LOAD BEARING WALL PANELS EFFECTIVE TECHNOLOGIES FOR EARTH STRUCTURES Jan Růžíčka Summary The paper outlines first results and experience of using prefabricated load bearing wall panels with
Mix Design and Pumped Concrete
Mix Design and Pumped Concrete A simple method of concrete mix design for pumpable concrete based on an estimated weight of the concrete per unit volume is described in the paper. The tables and figures
Pumice 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,
Concrete. Chapter 10 Properties of Fresh Concrete. Materials of Construction-Concrete 1. Wikipedia.org
Wikipedia.org Concrete Chapter 10 Properties of Fresh Concrete Materials of Construction-Concrete 1 What is Concrete? Concrete is a composite material that consists of a cement paste within which various
MasterGlenium SKY. Solution for ready-mix concrete industry
MasterGlenium SKY Solution for ready-mix concrete industry 2 MasterGlenium SKY Total Performance Control Environment Concrete has to fulfill a variety of requirements, depending on its user, its field
EFFECT OF CHEMICAL ADMIXTURES IN HIGH STRENGTH CONCRETE
EFFECT OF CHEMICAL ADMIXTURES IN HIGH STRENGTH CONCRETE P.Jagadeesh 1 and S.khaviya 2 1,2 Department of civil engineering, Kongu engineering College Abstract This project deals with the experimental study
Admixture Systems. from Master Builders Solutions
2 Master Builders Solutions from BASF Master Builders Solutions The Master Builders Solutions brand brings all of BASF s expertise together to create chemical solutions for new construction, maintenance,
MasterGlenium SKY. Solution for ready-mix concrete industry
MasterGlenium SKY Solution for ready-mix industry 2 MasterGlenium SKY Total Performance Control Environment Concrete has to fulfill a variety of requirements, depending on its user, its field of application
Construction Stage Analysis Midas Civil. Presenter: Robert Salca technical support engineer, Midas UK
Construction Stage Analysis Midas Civil Presenter: Robert Salca technical support engineer, Midas UK In order to make sure that the sound system is working well a poll will appear shortly on your screens.
Influence of Restraint Conditions and Reinforcing Bar on Plastic Shrinkage of Self-consolidating Concrete
Influence of Restraint Conditions and Reinforcing Bar on Plastic Shrinkage of Self-consolidating Concrete Parviz Ghoddousi 1, and Ali Akbar Shirzadi Javid 2 1 Assistant Professor of Civil Engineering at
Introduction of a Japan Concrete Institute Guideline: Practical Guideline for Investigation, Repair and Strengthening of Cracked Concrete Structures
Journal of Civil Engineering and Architecture 9 (2015) 213-224 doi: 10.17265/1934-7359/2015.02.010 D DAVID PUBLISHING Introduction of a Japan Concrete Institute Guideline: Practical Guideline for Investigation,
PROPORTIONING CONCRETE MIXES
TOKYO INSTITUTE OF TECHNOLOGY Department of Civil Engineering ATCE ADVANCED TOPICS IN CIVIL ENGINEERING Professor Kamran M. Nemati PROPORTIONING CONCRETE MIXES ATCE Advanced topics in Civil Engineering
Study on Properties of Ceramic Tile Bonding Mortar
Study on Properties of Ceramic Tile Bonding Ceramic tile is a widely used wall decoration material. However, since the ceramic tile mortar currently used is mostly the cement mortar, mortar of this kind
USE OF SUPER ABSORBENT POLYMERS (SAPs) IN CONCRETE.
USE OF SUPER ABSORBENT POLYMERS (SAPs) IN CONCRETE. An overview of some aspects of superabsorbent polymers (SAPs) in concrete technology. The use of superabsorbent polymers as a crack sealing and crack
INFLUENCE OF CEMENT-ADMIXTURE INTERACTION ON THE STABILITY OF PRODUCTION PROPERTIES OF SCC
INFLUENCE OF CEMENT-ADMIXTURE INTERACTION ON THE STABILITY OF PRODUCTION PROPERTIES OF SCC O. H. Wallevik, S. Kubens and F. Müller Icelandic Building Research Institute, Reykjavík, Iceland Abstract One
Development of Filler for Underground Cavities SMART GROUTTM Using Granulated Blast Furnace Slag
JFE TECHNICAL REPORT No. 19 (Mar. 2014) Development of Filler for Underground Cavities SMART GROUTTM Using Granulated Blast Furnace Slag HAYASHIDO Yasushi*1 SHINOHARA Masaki*2 YOSHITAKE Hideki*3 Abstract:
MiniFIBERS ADMIXUS TM Admixtures for Cement Containing Applications. July 2016
MiniFIBERS ADMIXUS TM Admixtures for Cement Containing Applications July 2016 The Use of ADMIXUS TM Products in Cementitious Applications Initial results from a research collaboration between MiniFIBERS,
Cement paste rheology and microstructure. Maurizio Bellotto
Cement paste rheology and microstructure Maurizio Bellotto open questions what is the origin of cohesion of cement paste? what are the phenomena which cause setting (stiffening)? precipitation of hydrates?
Adhesive Anchors SECTION CONTENTS. General Information. Installation Information Design Information Material Information Ordering Information
General Information General Information AC100-PRO Vinylester Injection Adhesive Anchoring System ProDUCT DESCRIPTION The AC100-PRO is a two-component vinylester adhesive anchoring system. The system includes
Course Concrete Technology Course Code Theory Term Work POE Total Max. Marks Contact Hours/ week
Course Concrete Technology Course Code 43588 Examination Scheme Theory Term Work POE Total Max. Marks 100 50 -- 150 Contact Hours/ week 3 2 -- 5 Prepared by Mr. C.S. Patil / Mr. S.P. Patil Date Prerequisites
GDOT RP Investigation of Recycled Tire Chips for Use in GDOT Concrete Used to Construct Barrier Walls and Other Applications Phase I
GDOT RP 15-14 Investigation of Recycled Tire Chips for Use in GDOT Concrete Used to Construct Barrier Walls and Other Applications Phase I Project Team University of Georgia Georgia Department of Transportation
Fly Ash, Slag, Silica Fume, and Natural Pozzolans
Silica Fume, and Fly Ash, Slag, Silica Fume, and Also known as Supplementary Cementing Materials (SCMs) a material that, when used in conjunction with portland cement, contributes to the properties of
Quality Control and Robustness of SCC, Part 1
Quality Control and Robustness of SCC, Part 1 ACI Spring 2012 Convention March 18 21, Dallas, TX Kamal H. Khayat joined the Missouri S&T faculty in August of 2011 as the Vernon and Maralee Jones Professor
Rheology using the ICAR Plus An Introduction
Rheology using the ICAR Plus An Introduction Overview The aim of this document is to introduce the reader to rheology and with the ICAR Plus how it can be used to evaluate fresh concrete properties. The
This paper presents the results of a case study
Case Study The Use of Slag Cement, Alkali-Free Accelerator, and Macro-Synthetic Fibers in Wet-Mix Shotcrete for Tunnel Applications By Ezgi Yurdakul, Klaus-Alexander Rieder, Niki Jackson, Mick Pawelski,
September 1, 2003 CONCRETE MANUAL SPECIAL TYPES OF CONCRETE
September 1, 2003 CONCRETE MANUAL 5-694.800 5-694.810 GENERAL SPECIAL TYPES OF CONCRETE 5-694.800 In the general use of the word concrete, the idea implied is the conventional placement of the material
SHOTCRETE CONCRETE GROUT EQUIPMENT SHOTCRETE
SHOTCRETE CONCRETE GROUT EQUIPMENT SHOTCRETE TABLE OF CONTENTS SUPPORT YOU CAN COUNT ON As your one-stop source for shotcrete application equipment, shotcrete materials, transfer systems, grouting equipment,
COMPATIBILITY OF CHEMICAL ADMIXTURE WITH CEMENT: MARSH CONE TEST
COMPATIBILITY OF CHEMICAL ADMIXTURE WITH CEMENT: MARSH CONE TEST DURGESH JADHAV E-mail:durgesh_jadhav@rediffmail.com Abstract In order to meet the performance requirements of concrete for various infrastructure
Concrete Placement for Bridge Decks on an Expressway Extension Project
Journal of Civil Engineering and Architecture 9 (2015) 1354-1361 doi: 10.17265/1934-7359/2015.11.010 D DAVID PUBLISHING Concrete Placement for Bridge Decks on an Expressway Extension Project Janusz Hołowaty
INSPECTION MANUAL FOR SELF-CONSOLIDATING CONCRETE IN PRECAST MEMBERS
INSPECTION MANUAL FOR SELF-CONSOLIDATING CONCRETE IN PRECAST MEMBERS Product 0-5134-P1 TxDOT Project 0-5134: Self-Consolidating Concrete for Precast Structural Applications By Eric P. Koehler and David
Site Practice. Concrete Construction. Alistair Russell
Site Practice Concrete Construction Alistair Russell Site Practice Site practice affects finished product Handling & placing Compaction & finishing Curing Cracking & expectations Joints & tolerances Context:
Use of High Performance Super Plasticizer in Concrete
Use of High Performance Super Plasticizer in Concrete Theme No. & Description : 6, Innovative Materials & Technology Reference No. : 74 Name of Author : Mr. Mayank Rawal/Dr. S.C. Maiti Abstract : Chemical
A-4 TEST DATA FOR MATERIALS v) Cement used : OPC 43 grade confirming to IS 8112 w) Specific gravity of cement : 3.15 x) Specific gravity of
A-2 SELECTION OF WATER CEMENT RATIO From Table 5 of IS:456-2000, maximum water cement ratio = 0.50 (Moderate exposure) Based on experience adopt water cement ratio as 0.45 as the cement is 53 grade 0.45
COMPRESSIVE STRENGTH OF CONCRETE WITH FLY ASH, NANOSILICA AND RECYCLED AGGREGATE
COPRESSIVE STRENGTH OF CONCRETE WITH FLY ASH, NANOSILICA AND RECYCLED AGGREGATE Arshdeep Singh 1, Roshan Lal 2, Pankaj Bavoria 3, Abhinav Saklani 4 1 Assistant Professor, Civil Engineering Department,
Types of Cracking and Influencing Causes
Types of Cracking and Influencing Causes TRB Cracking Webinar May 25, 2016 R. Doug Hooton NSERC/ Cement Association of Canada, Senior Industrial Research Chair in Concrete Durability & Sustainability hooton@civ.utoronto.ca
TARGET MARKET CONCRETE SIKA CAPITAL MARKETS DAY 2017
TARGET MARKET CONCRETE SIKA CAPITAL MARKETS DAY 2017 CONCRETE WHEN YOU NEED TO RELY ON THE STRENGTH OF THE CONCRETE 2 Sika ViscoFlow ENABLES NEW WAYS OF CONSTRUCTION MICHAEL DANZINGER, CORPORATE TECHNOLOGY
2014 Concrete Materials Laboratory Test Study
2014 Concrete Materials Laboratory Test Study A laboratory test study examining the plastic properties of concrete mixes at normal (20 C) and cold temperatures (5 C) April 24, 2015 INDEX Introduction 3
FIVE STAR PRODUCTS, INC. (800)
FIVE STAR PRODUCTS, INC. www.fivestarproducts.com (800) 243-2206 Page 1 of 11 DESIGN-A-SPEC GUIDELINES FIVE STAR RS ANCHOR GEL CONTENTS PART A - GENERAL CONDITIONS PART B - MATERIAL SPECIFICATIONS PART
CONTINUOUS FLIGHT AUGER (CFA) PILES QC/QA PROCEDURES. Preferred QC/QA Procedures
Preferred QC/QA Procedures The Federal Highway Administration (FHWA) has provided QC/QA guidance for this technology as noted below. The reference document also contains information about construction
Fundamentals 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
High Strength Epoxy Tested in Accordance with ICC-ES AC308
ADHESIVE ANCHORING SPECIALISTS DESCRIPTION/SUGGESTED SPECIFICATIONS* The 100% epoxy resin and hardener are completely mixed as they are dispensed from the dual cartridge through a static mixing nozzle,
Studying of Floating Concrete Report Fall
Studying of Floating Concrete Report 2017 Fall Instructor: Dr. Tzuyang Yu Submitted by Jie Hu Haoyu Lin George Xanthopoulos Haoxiang Yu Marven S Pigeot 1 Table of Contents 1. Introduction... 3 2. Approach...
Testing of Concrete Blocks
Testing of Concrete Blocks By Er. Kaushal Kishore, Materials Engineer, Roorkee INTRODUCTION Concrete can be converted into precast masonry units such as Hollow and Solid normal and light weight concrete
Laboratory Assessment of Drying Shrinkage of Concretes Containing Shrinkage Reducing Agents Compared with a New Low shrinkage Concrete
Laboratory Assessment of Drying Shrinkage of Concretes Containing Shrinkage Reducing Agents Compared with a New Low shrinkage Concrete Bob Bornstein, Tony Song 2, and Valentin Mukhin 3 Manager Technical
GI Test Smart Build Right
GERMANN INSTRUMENTS A/S Emdrupvej 102 - DK-2400 Copenhagen NV - Denmark Phone: (+45) 39 67 71 17 - Fax: (+45) 39 67 31 67 E-mail: germann-eu@germann.org, Internet: www.germann.org VAT # DK 89 43 57 14
DURABILITY of CONCRETE STRUCTURES. Part- 3 Concrete Cracks
DURABILITY of CONCRETE STRUCTURES Assist. Prof. Dr. Mert Yücel YARDIMCI Part- 3 Concrete Cracks This presentation covers the subjects in CEB Durable Concrete Structures Guideline and has been prepared
Electric Diaphragm Pumps Electric Operated Double Diaphragm Pump
Electric Diaphragm Pumps Electric Operated Double Diaphragm Pump Only electric diaphragm pump on the market that will stall under pressure Up to 80% more efficient than air operated diaphragm pumps Reduce
City of San Mateo WWTP Filter Cake System
FLO-LINE TECHNOLOGY (WWW.FLOLINEPUMPS.COM) 11822 Kemper Rd., Auburn CA 95603 Ph 800-255-2933 Fax 530-887-2243 CITY OF SAN MATEO WWTP - FILTER CAKE PUMP SYSTEM City of San Mateo WWTP Filter Cake System
Self-Compacting Concrete
Invited Paper Journal of Advanced Concrete Technology Vol. 1, No. 1, 5-15, April 2003 / Copyright 2003 Japan Concrete Institute 5 Self-Compacting Concrete Hajime Okamura 1 and Masahiro Ouchi 2 Received
Materials for Civil and Construction Engineers
Materials for Civil and Construction Engineers CHAPTER 9 Asphalt Binders and Asphalt Mixtures Bituminous Materials Asphalt Natural or Refined from petroleum oil Tar Asphalt Cement Cutback Emulsion 2 Source
FEASIBILITY STUDY ON CONVENTIONAL CONCRETE AND CELLULAR LIGHT WEIGHT CONCRETE (FOAMED CONCRETE)
FEASIBILITY STUDY ON CONVENTIONAL CONCRETE AND CELLULAR LIGHT WEIGHT CONCRETE (FOAMED CONCRETE) MR. PAVAN RANMALE Department of Civil Engineering, Subharti Institute of Technology and Engineering, Swami
The Importance of the Factors Affecting Concrete Shrinkage
TMC Tinni Management Consulting PAVEMENT INFORMATION NOTE Issue No. 20 Edited by Arvo Tinni. Email arvo@tinni.com.au 11 11 2008 The Importance of the Factors Affecting Concrete Shrinkage 1 Purpose This
Sustainable Use of Crushed Concrete Waste as A Road Base Material
Sustainable Use of Crushed Concrete Waste as A Road Base Material Narantuya Batmunkh 1, Komsun Siripun 2, Peerapong Jitsangiam 3 and Hamid Nikraz 4 1 PhD candidate, Department of Civil Engineering, Curtin
High Strength Epoxy Tested in Accordance with ICC-ES AC308
ADHESIVE ANCHORING SPECIALISTS High Strength Epoxy Tested in Accordance with ICC-ES AC308 DESCRIPTION/SUGGESTED SPECIFICATIONS* The epoxy resin and hardener are completely mixed as they are dispensed from
THE INFLUENCE OF THE AMOUNT OF FIBRE REINFORCEMENT ON THE AIR PERMEABILITY OF HIGH PERFORMANCE CONCRETE
2009/2 PAGES 1 7 RECEIVED 10. 1. 2009 ACCEPTED 9. 4. 2009 P. PAULÍK, I. HUDOBA THE INFLUENCE OF THE AMOUNT OF FIBRE REINFORCEMENT ON THE AIR PERMEABILITY OF HIGH PERFORMANCE CONCRETE ABSTRACT Peter Paulík
INNOVATIVE MAINTENANCE MATERIALS, EQUIPMENT AND OPERATIONS FOAMED ASPHALT. Tomas Trevino, P.E. Maintenance Engineer Corpus Christi District
INNOVATIVE MAINTENANCE MATERIALS, EQUIPMENT AND OPERATIONS FOAMED ASPHALT Tomas Trevino, P.E. Maintenance Engineer Corpus Christi District Today s Presentation will cover these topics: Traditional stabilization
B BASF MasterFlow MasterFlow MasterFlow MasterFlow C CGM Grout...8
B BASF MasterFlow 100...2 MasterFlow 648...5 MasterFlow 885...4 MasterFlow 928...3 C CGM...8 F FIVE STAR GROUT...7 G GROUT Five Star Non Shrink...7 General Purpose...6 Masterflow 100...2 Masterflow 648...5
A 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
Effect 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
Effect of Silica Fume and Metakaoline in Consistency and Setting Time of OPC
Effect of Silica Fume and Metakaoline in Consistency and Setting Time of OPC Dr. J. Karthikeyan, Asst. Professor, Department of Civil Engineering, National Institute of Technology, Tiruchirappalli 620015
NUMERICAL MODEL FOR PREDICTION OF CRACKS IN CONCRETE STRUCTURES
NUMERICAL MODEL FOR PREDICTION OF CRACKS IN CONCRETE STRUCTURES A. van Beek FEMMASSE B.V., Geldermalsen, The Netherlands B.E.J. Baetens INTRON B.V., Geldermalsen, The Netherlands E. Schlangen INTRON B.V.,
The Effect of Local Available Materials on the Properties of Concrete
International Journal of Life Science and Engineering Vol. 1, No. 4, 2015, pp. 140-144 http://www.aiscience.org/journal/ijlse The Effect of Local Available Materials on the Properties of Concrete Salahaldein
SELF-CONSOLIDATING CONCRETE FOR SLIP-FORM CONSTRUCTION: PROPERTIES AND TEST METHODS
SELF-CONSOLIDATING CONCRETE FOR SLIP-FORM CONSTRUCTION: PROPERTIES AND TEST METHODS Kejin Wang (1), Surendra P. Shah (2) and Thomas Voigt (3) (1) Department of Civil, Construction and Environmental Engineering,
Early Thermal Cracking of Concrete
THE HIGHWAYS AGENCY THE SCOTTISH OFFICE DEVELOPMENT DEPARTMENT Incorporating Amendment No.1, 1989 THE WELSH OFFICE Y SWYDDFA GYMREIG THE DEPARTMENT OF THE ENVIRONMENT FOR NORTHERN IRELAND Early Thermal
Reliability Of Non-Destructive Tests For Hardened Concrete Strength
Reliability Of Non-Destructive Tests For Hardened Concrete Strength Tarsem Lal 1, Sanjay Sharma 2, Sanjeev Naval 3 1 (Post Graduate student, DAVIET Jalandhar, India) 2 (Professor and Head, Department of
Fiber Reinforced Concrete (FRC)
Progress in Fiber Reinforced Concrete (FRC) Concrete is relatively brittle, and its tensile strength is typically only about one tenths of its compressive strength. Regular concrete is therefore normally
3/5/2014. Disclaimer and Waiver of Liability. Portland Cement Association. Learning Objectives. Why do concrete problems occur?
Disclaimer and Waiver of Liability T-20 Troubleshooting Concrete Mix Designs and Specifications Michelle L. Wilson, FACI Director, Education Portland Cement Association www.cement.org Tuesday, March 4,
DS/EN DK NA:2013
National Annex to Eurocode 6: Design of masonry structures - Part 1-1: General rules for reinforced and unreinforced masonry structures Foreword This national annex (NA) is a revision and compilation of
Low Heat of Hydration Concrete
Strength. Performance. Passion. Low Heat of Hydration Concrete Low Heat of Hydration Concrete, 2013-06-14 2013 Holcim Ltd Who is Holcim Béton? Holcim Béton operates from five batching plants along Lebanon
A Comparative Study of the Methods of Concrete Mix Design Using Crushed and Uncrushed Coarse Aggregates
International Journal of Scientific & Engineering Research, Volume 6, Issue 8, August-2015 1182 A Comparative Study of the Methods of Concrete Mix Design Using Crushed and Uncrushed Coarse Aggregates T.C.
CONCRETE WALL FABRICATION BY CONTOUR CRAFTING
CONCRETE WALL FABRICATION BY CONTOUR CRAFTING Dooil Hwang and Behrokh Khoshnevis Daniel J. Epstein Department of Industrial & Systems Engineering University of Southern California, Los Angeles, CA 90089
HIGHWAY STRUCTURES: DESIGN (SUBSTRUCTURES AND SPECIAL STRUCTURES) COMPONENTS PART 7 BA 82/00 FORMATION OF CONTINUITY JOINTS IN BRIDGE DECKS SUMMARY
DESIGN MANUAL FOR ROADS AND BRIDGES VOLUME 2 SECTION 3 HIGHWAY STRUCTURES: DESIGN (SUBSTRUCTURES AND SPECIAL STRUCTURES) MATERIALS AND COMPONENTS PART 7 BA 82/00 FORMATION OF CONTINUITY JOINTS IN BRIDGE
Would You Like Concrete With Little or No Shrinkage, Cracking, and Curling??? We Will Focus on:
Would You Like Concrete With Little or No Shrinkage, Cracking, and Curling??? We Will Focus on: Coarse Aggregates Admixtures Including Shrinkage Reducing and Shrinkage Compensating Admixtures Evaporation
Shrinkage Development in High Performance Concrete. Ammar Yahia, P.Eng., Ph.D.,
Shrinkage Development in High Performance Concrete Ammar Yahia, P.Eng., Ph.D., Outlines 1. Introduction 2. High-performance concrete 3. Autogenous shrinkage 4. Autogenous shrinkage stress 5. Autogenous
THE EFFECT OF ADDITION OF LIMESTONE POWDER ON THE PROPERTIES OF SELF-COMPACTING CONCRETE
THE EFFECT OF ADDITION OF LIMESTONE POWDER ON THE PROPERTIES OF SELF-COMPACTING CONCRETE B. Beeralingegowda 1, V. D. Gundakalle 2 P.G. Student, Civil Engineering Department, KLE Dr. MSSCET, Belgaum, Karnataka,
Mix 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
Admixtures in Concrete
Admixtures in Concrete ADMIXTURES A material other than water, aggregates, and hydraulic cements used as an ingredient of concrete or mortar and added to the batch immediately before or during mixing.
SPECIFICATIONS PRECAST PRESTRESSED CONCRETE PART 1 GENERAL 1.6.2.5 Openings, inserts and related reinforcement 1.6.3 Each drawing submitted to bear stamp of 1.1 Related Work qualified Professional Engineer
Pumps & Systems. Face Unique Challenges with Proven Pumping Solutions NETZSCH Pumps in the Mining Industry
Pumps & Systems Face Unique Challenges with Proven Pumping Solutions NETZSCH Pumps in the Mining Industry We are there, where you need us The global network at your side The extraction and processing of
Roboze one. Roboze. The only Beltless 3D printer with a real 25 micron layer THE MOST ACCURATE FFF 3D PRINTER NOW WITH 10 MATERIALS CAPABILITY
Roboze one THE MOST ACCURATE FFF 3D PRINTER NOW WITH 10 MATERIALS CAPABILITY Roboze The only Beltless 3D printer with a real 25 micron layer Roboze 2 Beltless Roboze Technology New stainless steel extruder
RETAINING WALL LEVEL BACKFILL
City of Poway Development Services Department Building Division (858) 668-4645 (858) 668-4646 (Inspection Line) building@poway.org RETAINING WALL LEVEL BACKFILL Construction of retaining walls, except