This test involves the measurement of the resistance to penetration of a sampling spoon under dynamic loading The resistance is empirically correlated with some of the engineering properties of soil such as density index, consistency, angle of internal friction, bearing capacity etc. This test is useful for general exploration of erratic soil profile for finding … Read more
Objective For determination of specific gravity of timber. Reference Standards IS : 1708 (Part 2)-1986 Equipment & Apparatus Balance(0-10kg) Oven(3000C) Preparation of sample The dimension of sample to be tested is 6 cm in length and 2 x 2 cm in cross-section or 15 cm in length and 5 x 5 cm in cross-section. Procedure … Read more
Objective For determination of moisture content of timber. Reference Standards IS : 1708 (Part 1)-1986 Equipment & Apparatus Balance(0-10 kg) Oven (3000c) Preparation of sample: The dimension of sample to be tested is 2.5 cm in length and 2 x 2 cm or 5 x 5 cm in cross-section. Procedure The sample is weighed (W1) … Read more
Objective For determination of softening point of a given bitumen. Reference Standards IS : 1205-1978-Indian standard methods for testing tar and bituminious materials (Determination of softening point) Equipment & Apparatus Ring and Ball apparatus, Steel balls Brass rings Ball guide Support Thermometer Bath with stirrer Procedure Sample material is heated to a temperature between … Read more
Objective For determination of ductility of distillation residue a given bitumen. Reference Standard IS : 1208-1978- Indian standard methods for testing tar and bituminous materials (Determination of ductility) Equipment & Apparatus Briquette mould, Ductility machine with water bath and a pulling device A putty knife Thermometer Procedure The bitumen sample is maintained to a pouring … Read more
Objective To determinate the penetration of bitumen. Reference Standard IS : 1203-1978-Indian standard methods for testing tar and bituminious materials (Determination of penetration) Equipment & Apparatus Container Needle Stop watch Water bath Penetration apparatus Thermometer Procedure The bitumen is softened to a paving consistency between 750 C and 1000C above the approximate temp … Read more
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