Objective For determination of Drying shrinkage of Pozzolanic materials. Reference standards IS : 1727- 1967 Methods of test for Pozzolanic : Determination of Drying shrinkage in pozzolana-cement mortar. Equipment & Apparatus Scale Trowel Length Comparator Flow Table Procedure The moulds shall be thinly covered with mineral oil; after this operation the stainless steel or non-corroding metal … Read more
Objective For determination compressive strength of building lime. Reference Standards IS: 6932(Part VII)-Method of tests for Building Limes (Determination of compressive and transverse strengths). Equipment & Apparatus Oven (3000C) Compression testing machine Test Sample Preparation 500 gm of lime is mixed with 60 to 65 % of water for 5 minutes and then the resulting … Read more
Objective For determination of soundness of Build lime by Le-chatelier method Reference Standards IS : 6932(Part IX)-1973-Method of tests for Building Lime (Determination of soundness). Equipment & Apparatus Le-Chatelier apparatus Steam boiler Preparation of sample A suitable amount of hydrated lime is mixed with on third its mass of Portland cement and 4 times its … Read more
Objective For determination of setting time of hydrated lime. Reference Standards IS: 6932(Part 11)-1983-Method of tests for Building Lime (Determination of setting time of hydrated lime) Equipment & Apparatus Balance Burette (50 ml) Enamel tray Vicat apparatus Preparation of sample Lime putty is prepared by thoroughly mixing the 500 gm hydrated lime with an equal … Read more
Objective For determination of Consistency of hydrated lime. Reference Standards IS: 6932(Part 8)-1973-Method of tests for Building Lime (Determination of Consistency of hydrated lime) Equipment & Apparatus Balance Burette (50 ml) Enamel tray Flow table Preparation of sample Lime putty is prepared by thoroughly mixing the 500 gm hydrated lime with an equal mass of … Read more
Objective Determination of Fineness of Building Lime by Dry sieving. Reference Standards IS: 6932(Part IV)-1973-(Methods of tests for Building Lime (Determination of Fineness of Hydrated Lime) Equipment & Apparatus Sieves Oven Balance Preparation sample Test sample is dried in oven for a period of four hours at a temperature of 1000to 1100C. Procedure Sieves specified … Read more
Objective For determination of relative density of liquid admixture. Reference Standards IS : 9103-1999 – Concrete admixtures specification Equipment & Apparatus Constant temperature bath Hydrometer Measuring cylinder(500 ml) Procedure About 400 ml of admixture is placed in a 500 ml graduated cylinder. The hydrometer is inserted into the cylinder. When it has reached the equilibrium … Read more
Objective The ash content which gives an indication of inorganic constituents is determined by igniting the admixture at 6000C to remove any organic material. Reference Standards IS : 9103-1999 – Concrete admixtures specification Equipment & Apparatus Oven(3000C) Bottle Balance(0-10kg) Procedure About 1 g of sample is placed in a porcelain crucible. The crucible is then placed … Read more
Objective For determination of dry material content of liquid admixtures. Reference Standards IS : 9103-1999- Concrete admixtures specification Equipment & Apparatus Oven(3000c) Bottle Balance(0-10kg) Procedure 25 to 30 g of preheated, completely dry sand is placed in a wide mouth glass weighing bottle provided with ground glass stopper. The bottle with sand and stopper is … Read more
Objective The tests are required to determine the strength of concrete and therefore its suitability for the job. Reference Standards IS : 516-1959 – Methods of tests for strength of concrete. Equipment & Apparatus Compression testing machine (2000 KN) Curing tank/Accelerated curing tank Balance (0-10 Kg) Procedure Representative samples of concrete shall be taken and … Read more