Course Concrete Technology Course Code Theory Term Work POE Total Max. Marks Contact Hours/ week

Transcription

1 Course Concrete Technology Course Code Examination Scheme Theory Term Work POE Total Max. Marks Contact Hours/ week Prepared by Mr. C.S. Patil / Mr. S.P. Patil Date Prerequisites This course requires the student to know about the basic of civil engineering, fundamentals of chemistry, building materials, statics etc. Course Outcomes At the end of the course the students should be able to: CO1 identify the functional role of ingredients of concrete and apply this knowledge to mix design philosophy acquire and apply fundamental knowledge in the fresh and hardened properties of concrete CO3 evaluate the effect of the environment on service life performance, properties and failure modes of structural concrete and demonstrate techniques of measuring the n Destructive Testing of concrete structure CO4 develop an awareness of the utilisation of waste materials as novel innovative materials for use in concrete CO5 design a concrete mix which fulfills the required properties for fresh and hardened concrete Mapping of COs with POs POs COs a b c d e f g h i j k l CO1 CO3 CO4 CO5 Course Contents Unit Title Section I 1. Concrete materials: Cement - Ordinary Portland, Portland Pozzolana, chemical composition, grade of cement, hydration, tests for cement, fineness, soundness, compressive strength, setting time. Hours 06 of

2 Unit Title Aggregates - classification, requirements, size, shape, texture, Tests for coarse aggregates: specific gravity, grading of aggregate, Flakiness index, Elongation Index, Impact value, abrasion value, crushing value, alkali aggregate reaction. Tests for fine aggregates: specific gravity, sieve analysis, fineness modulus, bulking of sand, Water - general requirements, quality of water. 2. Fresh Concrete: Workability, factors affecting, measurement of workability, different tests for workability, segregation, bleeding, process of manufacture of concrete -batching, mixing, transportation, compaction, curing of concrete, curing methods, admixtures in concrete - air entraining agents, plasticizer and super plasticizer, accelerators, retarders, workability agents. Mineral admixtures: fly ash, silica flumes, Ground Glass Blast Furnace Slag, Metakoline. 3. Hardened Concrete: Strength of concrete, w/c ratio, gel/space ratio, gain of strength with age, maturity concept of concrete, effect of maximum size of aggregate on strength, relation between compressive and tensile strength, factors affecting modulus of elasticity, definition and factors affecting creep and shrinkage. Section II 4. Durability of concrete: Strength and durability relationship, effect of w/c on durability, different exposure condition as per IS 456 minimum and maximum cement content, effect of permeability, sulphate attack, methods of controlling sulphate attack. Durability of concrete in sea water, Test on hardened concrete - flexural strength, comparison of cube test and cylinder test, Schmidt s rebound hammer, Ultrasonic pulse velocity method. 5. Special Concrete: Light weight concrete, no-fines concrete, high density concrete, fiber reinforced concrete, self-compacting concrete, high strength concrete, high performance concrete, manufacturing of ready mix concrete, cold weather concreting, hot weather concreting, pavement quality concrete. 6. Concrete Mix Design: Objectives of mix design, different methods of mix design, factors affecting mix proportions, quality control of concrete, statistical methods, acceptance criteria, Numerical on mix design by ACI , IS andIS 456. Mix design of fly ash concrete by IS Hours of

3 Reference Books: Sr. Title of Book Author Publisher/Edition Topics 1 Concrete Technology 2 Concrete Technology 3 Concrete Technology 4 Concrete Technology M. S. Shetty S. Chand & Company Ltd, New Delhi All by M. L. Gambhir Tata McGraw-Hill publishing All Company Ltd, New Delhi A. M. Neville Pearson Education, New Delhi All R. S. Varshnay New Chand &Brathers, New Delh All Scheme of Marks Section Unit Title Marks I 1 Cement, Aggregates, Water 17 2 Fresh Concrete 17 4 Hardened Concrete 17 II 5 Durability of concrete 17 6 Special concrete 17 7 Concrete Mix Design 17 Course Unitization Section Unit Course Outcomes of Questions in Title CAT-I CAT-II I 1 Cement, Aggregates, Water CO Fresh Concrete 01 3 Hardened Concrete 01 II 4 Durability of concrete CO Special concrete CO Concrete Mix Design CO5 01

4 Unit wise Lesson Plan Section I Unit 01 Unit Title Cement, Aggregates, Water Planned 06 UO1 identify the functional role of ingredients of concrete and apply this CO1 knowledge to mix design philosophy UO1 determine physical properties of ingredients of concrete in laboratory CO1 1 Introduction to Concrete Technology, past history and detailed course structure 2 Manufacturing of cement, chemical composition, heat of hydration and types of cement. 3 Physical properties of cement such as setting time, fineness, soundness, compressive strength etc. 4 Physical properties of fine aggregate such as sieve analysis, fineness modulus, specific gravity, bulk density etc. 5 Physical properties of coarse aggregate such as sieve analysis, specific gravity, bulk density, water absorption etc. 6 Mechanical properties of coarse aggregate such as aggregate impact value, aggregate crushing value, aggregate abrasion value etc. Review Questions Q1 Enlist the physical properties of cement. Explain setting time of cement CO1 with neat sketch. Q2 Define fineness modulus of sand. Explain test procedure to calculate the CO1 F. M. Also state value as per IS standard. Q3 Explain the phenomenon of hydration of cement and its effect on CO1 strength of cement. Q4 Enlist mechanical properties of coarse aggregate. Explain any two in CO1 detail. Q5 Enlist the types of cement. Explain any three in details. CO1 Q6 What is significance of fineness modulus of sand? Explain test CO1 procedure to calculate the F. M. Q7 Explain detailed procedure to determine Aggregate Crushing Value? CO1 Q8 Explain Heat of Hydration and Water Requirements for Hydration? CO1 Q9 Explain how shape and texture of aggregate affected strength of concrete? CO1

5 Unit 02 Unit Title Fresh Concrete Planned UO1 acquire and apply fundamental knowledge in the fresh properties of concrete UO2 determine workability of concrete in laboratory by Slump test, Compaction Factor test, V Bee Consitometer test etc. UO3 demonstrate the process of making concrete such as mixing, compaction, curing etc. UO4 evaluate and apply the effect of the admixtures on proportion of concrete and workability of concrete 1 Workability of concrete and method of determine workability of concrete such as Slump test, Compaction Factor test, V Bee Consitometer test etc. 2 Factors affecting workability of concrete, segregation and bleeding of concrete, Batching, Mixing and Transportation on concrete 3 Pacing and compaction of concrete, methods of compaction of concrete such as roddng, vibration, pressure etc 4 Curing of concrete, methods of curing, factors affecting curing. 5 Roll of Plasticizer and Super plasticizer on workability of fresh concrete, advantages and its function 6 Air Entraining Agents, Retarders, their effects on proportion of concrete 7 Fly ash, effect of fly ash on fresh and harden concrete 8 Silica Flumes, Granulated Blast Furnace Slag (GFBFS), Rice Huck, Surki etc Review Questions Q1 Discuss various methods of compaction of concrete. State suitability of each with examples. Q2 Enlist different methods of finding workability of concrete. Explain compaction factor test in detail. Q3 Explain in details different methods of curing with their suitability. Q4 Explain factors affecting workability of concrete in detail. Q5 Enlist different methods of finding workability of concrete. Explain any one method in detail. Q6 Discuss various methods of curing of concrete. State suitability of each with examples. Q7 What are method of transportation and placing of concrete used for making good quality concrete? Explain in brief Q8 Explain factors affecting workability of concrete in detail.

6 Q9 Write detail procedure of measuring slump of fresh concrete? Explain different types of slump failure. Q10 What are methods of compaction of concrete used for making good quality concrete? Explain in brief Q11 Differentiate between bleeding and segregation. Explain their effects on concrete Q12 Describe the various methods of mixing of concrete Q13 Why is vibrator required in concreting? Discuss the various types of vibrators used in concreting Q14 What are different types of admixture used in concrete? Explain in detail effect of air entraining agents on concrete? Q15 Explain use of fly ash and metakaolin in fresh concrete with their advantages. Q16 Explain the effects of different chemical admixture on fresh concrete. Q17 Explain the advantages in using Pozzuoli admixture in concrete. Q18 What are different types of admixture used in concrete? Explain in detail effect of super-plasticizer on concrete? Q19 What do you mean by Pozzuoli admixture? Explain in detail Fly Ash? Q20 Explain Air-entraining Admixture and the effect of Air Entrainment on the Properties of Concrete. Unit 03 Unit Title Hardened Concrete Planned UO1 UO2 interpret and apply Indian Standard test methods and specifications, in relation to prescribed requirements needed for concrete supply and concrete structures evaluate characteristic strength on harden concrete such as compressive strength, spilt tensile strength, flexural strength etc Characteristic strength on harden concrete such as compressive strength, spilt tensile strength, flexural strength etc. 2 Factors affecting strength of concrete such as W/C ratio, Gel Space ratio, Age of concrete etc. 3 Effect of maximum size of aggregate on strength of concrete, relation between compressive strength, spilt tensile strength & flexural strength etc. 4 Modulus of elasticity, relation between modulus of elasticity and strength of concrete 5 Creep and shrinkage of concrete, factors affecting, method of determine creep and shrinkage of concrete

7 Review Questions Q1 Explain in detail factors affecting strength of concrete? Q2 Explain in details types of concrete shrinkage? Q3 Explain how to determine dynamic modulus of elasticity and its relation with static modulus of elasticity Q4 What is modulus of elasticity and explain its relation with strength. Q5 Enlist different tests on Hardened Concrete? Explain any one in detail? Q6 Explain how gel/space ratio affecting strength of concrete? Q7 Explain characteristic strength, compressive strength and flexural strength on concrete. Q8 Explain creep of concrete and how determine the creep of concrete in laboratory. Q9 Explain the effect of w/c ratio and gel space ratio on strength of concerts. Q10 What is modulus of elasticity and explain its relation with strength. Unit 04 Unit Title Durability of concrete Planned UO1 evaluate the effect of the environment on service life performance, CO3 properties and failure modes of structural concrete UO2 develop an awareness of the corrosion on steel in concrete CO3 UO3 demonstrate techniques of measuring & factors affecting the n Destructive Testing of concrete structure CO3 1 Minimum & Maximum cement content on durability of Concrete 2 Strength and durability relationship, volume change in concrete, permeability of concrete 3 Exposure condition as per IS provision, Freezing & Thawing. 4 Alkali aggregate reaction, chloride attack, sulphate attack etc. 5 Corrosion of steel - causes of corrosion, remedial measure to control corrosion of steel. 6 Schmidt s rebound hammer to test concrete with their limitation

8 7 Ultrasonic Pulse Velocity - techniques of measuring and factors affecting measurement of Ultrasonic Pulse Velocity 8 Cover meter and Corrosion meter Review Questions Q1 Explain effect of w/c ratio on durability and permeability of concrete. CO3 Q2 Explain the importance on minimum & maximum cement content on CO3 durability? Q3 Explain different exposure condition as per IS provision. CO3 Q4 Explain remedies measures of corrosion control of steel. CO3 Q5 Explain the importance on minimum & maximum cement content on CO3 durability? Q6 Explain Freezing and Thawing phenomena of concrete. CO3 Q7 Explain in details factors Contributing to Cracks in Concrete. CO3 Q8 Explain measures to control the corrosion of steel reinforcement. CO3 Q9 Importance of strength of concrete on durability and its relationship. CO3 Q10 Explain in details the methods for controlling the sulphate attack on CO3 concrete Q1 What you mean by NDT? Explain any one method in detailed CO3 Q2 Explain use of cover meter and corrosion meter. CO3 Q3 Q4 Explain the techniques of measuring and factors affecting measurement of Ultrasonic Pulse Velocity. Explain in detail Schmidt s rebound hammer to test concrete with their limitation (with figure) CO3 CO3 Unit 05 Unit Title Special concrete Planned UO1 develop an awareness of the utilisation of waste materials as novel innovative materials for use in concrete 05 CO4 1 Hot weather concreting, Light weight concrete, Cold weather concreting, High Density Concrete 2 Polymer concrete, Fiber reinforced concrete, fines concrete, Ferrocement 3 Vacuum concrete, Shortcreting, Vacuum Dewatered Concrete

9 4 Self-Compacting Concrete (SCC) Mix Design, Methods of testing 5 Pavement quality concrete & RMC Review Questions Q1 Explain in details a) Polymer concrete b) Fiber reinforced concrete c) CO4 fines concrete d) Ferrocement Q2 Explain in details a) Hot weather concreting b) Light weight concrete c) CO4 Cold weather concreting d) High Density Concrete Q3 Explain in details a) Vacuum concrete b) Shortcreting c) Vacuum CO4 Dewatered Concrete Q4 Explain in details a) Self Compacting Concrete (SCC) b) Roller CO4 Compacted Concrete c) High performance concrete Q5 What are precautions is to be taken during hot and cold weather CO4 concreting? Q6 Explain different types of fiber used in concrete? CO4 Q7 What you mean by NDT? Explain any one method in detailed CO4 Q8 Explain use of cover meter and corrosion meter. CO4 Q9 Q10 Explain the techniques of measuring and factors affecting measurement of Ultrasonic Pulse Velocity. Explain in detail Schmidt s rebound hammer to test concrete with their limitation (with figure) CO4 CO4 Unit Unit Title Concrete Mix Design Planned UO1 UO2 select the correct raw material components and mix design needed to formulate a concrete that meets prescribed specification requirements Design a mix proportion by ACI , IS and DOE method 07 CO5 CO5 1 Objective of Mix Design, factors governing Mix Design, minal Mix Proportion etc. 2 Concrete Mix Design by ACI Method 3 Numerical on mix design by ACI Method 4 Concrete Mix Design by DOE Method 5 Numerical on mix design by DOE Method

10 6 Concrete Mix Design by IS Method 7 Mix design of fly ash concrete by IS Review Questions Q1 What are the factors affecting design of concrete mix? CO5 Q2 Explain detail procedure of concrete mix design by IS CO5 Q3 Explain method of expressing proportions and also what do you mean by CO5 acceptances criteria? Q4 Explain detail procedure of concrete mix design by ACI CO5 Q5 Enlist varies method of mix design? Write data to be collected for a mix CO5 design? Q6 Explain detail procedure of concrete mix design by DOE method. CO5 Model Question Paper Course Title : Concrete Technology Time 3.00 Hrs Max. Marks 100 Instructions: Solve any three questions from each section Figures to the right indicate full marks Assume suitable data if necessary. Section-I Marks 1 a Define fineness modulus of sand. Explain test procedure to calculate the F. M. Also state value as per IS standard. b Explain Heat of Hydration and Water Requirements for Hydration? 09 2 a Enlist different methods of finding workability of concrete. Explain compaction factor test in detail. b Discuss various methods of curing of concrete. State suitability of each with examples. OR b What are different types of admixture used in concrete? Explain in detail effect of air entraining agents on concrete? 09

11 3 a Explain how to determine dynamic modulus of elasticity and its relation with static modulus of elasticity b Explain characteristic strength, compressive strength and flexural strength on concrete. Section-II 4 a Explain the importance on minimum & maximum cement content on durability? b Explain in details the methods for controlling the sulphate attack on concrete OR b Explain the techniques of measuring and factors affecting measurement of Ultrasonic Pulse Velocity Explain in details a) Hot weather concreting b) Light weight concrete c) Cold weather concreting d) High Density Concrete 16 6 a What are the factors affecting design of concrete mix? 05 b Design Concrete Mix Proportion for M30 grade by IS