Concrete Technology for MSBTE I Scheme (III - CE/CR/CS - 22305)

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Unit - I Cement 1.1 Chemical constituents of OPC and their effects on properties of OPC, Bogue's compounds and their properties, hydration of cement. Physical properties of OPC : fineness, standard consistency, setting time, soundness, compressive strength. 1.2 Different grades of OPC : 33, 43 and 53 with specifications of physical properties as per relevant IS codes. 1.3 Testing of OPC : Field tests and laboratory tests-fineness test, standard consistency test, setting time test, soundness test, compressive strength test, storage of cement and effect of storage on properties of cement. 1.4 Physical properties, I.S. specifications and field applications of different types of cements : Rapid hardening cement, Low heat cement, Porland pozzolana cement, sulphate resisting cement, blast furnace slag cement, white cement. Unit - II Aggregates 2.1 Aggregates : Requirement of good aggregates, classification according to source, size and shape. 2.2 Fine aggregates : Properties, size, specific gravity, bulk density, water absorption and bulking, fineness modulus and grading zone of sand by sieve analysis, silt content in sand and their specification as per IS 383, bulking of sand. Concept of crushed Sand. 2.3 Coarse aggreagtes : Properties, size, shape, surface texture, water absorption, soundness, specific gravity and bulk density, fineness modullus of coarse aggregate by sieve analysis, grading of coarse aggregates, crushing value, impact value and abrasion value of coarse aggregates with specification. 2.4 Water : Quality of water, impurities in mixing water and permissible limits for solids as per IS : 456, use of sea water for mixing concrete. Unit - III Concrete 3.1 Concrete : Necessity of supervision for concreting operation, different grades of concrete (ordinary concrete, standard concrete and high strength concrete as per provisions of IS 456. 3.2 Water cement ratio Duff Abraham w/c law, significance of w/c ratio, selection of w/c ratio for different grades of concrete prepared from different grades of OPC as per graphs specified in IS 10262, maximum w/c ratio for different grades of concrete for different exposure conditions. 3.3 Properties of fresh concrete : Workability, factors affecting workability of concrete. Determination of workability of concrete by slump cone test, compaction factor test. Range values of workability requirement for different types of concrete works. Segregation, bleeding and preventive measures. 3.4 Properties of Hardened concrete compressive strength, durability impermeability and dimensional changes of concrete. Unit - IV Concrete Mix Design and Testing of Concrete 4.1 Concrete mix design, objectives, methods of mix design, study of mix design procedure by I.S. method as per I.S. 10262-(only procedural steps) 4.2 Testing of concrete : Significance of testing, determination of compressive strength of concrete cubes at different ages, interpretation and co-relation of test results. 4.3 Non-destructive testing of concrete : Importance of NDT, methods of NDT. 4.4 Rebound hammer test, working principle of rebound hammer and factor affecting the rebound index, Ultrasonic pulse velocity test, specification for deciding the quality of concrete by Ultrasonic pulse velocity as per I.S. 13311 (part 1 and 2). Unit - V Quality Control of Concrete 5.1 Concreting Operations : Batching, Mixing, Transportation, Placing, Compaction, Curing and finishing of concrete. 5.2 Forms for concreting : Different types of form works for beams, slabs, columns, materials used for form work, requirement of good form work, stripping time for removal of form works per IS 456-2000 provision for different structural members. 5.3 Waterproofing : Importance and need of waterproofing, methods of waterproofing and materials used for waterproofing. 5.4 Joints in concrete construction : Types of joints, joining old and new concrete, methods of joining, materials used for filling joints. Unit - VI Chemical Admixture in Concrete, Special Concrete and Extreme Weather Concreting 6.1 Admixture in concrete : Purpose, properties and application for different types of admixture such as accelerating admixtures, retarding admixtures, water reducing admixture, air entraining admixture and super plasticizers. 6.2 Special concrete : Properties, advantages and limitation of the following types of special concrete : Ready mix concrete, fiber reinforced concrete, High performance concrete and self compacting concrete, light weight concrete. 6.3 Cold and hot weather concreting : Effect of cold and hot weather on concrete, precautions to be taken while concreting in cold and hot weather condition. 6.4 Concrete as industrial flooring material and various techniques : Vacuum dewatering flooring, Free movement flooring. Techniques of groove cutting and various materials used for groove filling in concrete flooring.

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Author: [Pradeep M. Ronge, Pravin E. Aru] Pages: 97 Edition: 2020 Vendors: Technical Publications