Objective For determination of specific gravity of soil solids by pycnometer method. Reference Standard IS : 2720 (Part 4) – 1985 – Method of test for soil (Part 4-Grain size analysis) Equipment & Apparatus Pycnometer Sieve(4.75 mm) Vaccum pump Oven Weighing balance Glass rod Preparation sample After receiving the soil sample it is dried in … Read more
Objective For determination of the moisture content of soil by oven drying method. Equipment’s & Accessories Oven (1050C to 1100C min.) Metal container Balance (0.01 g accuracy) Procedure The number of the container is recorded, cleaned, dried and weighed.(W1) About 15-30 g of soil is placed in the container and the weight of soil with the … Read more
The N-value observed during testing is not utilized directly in assessing soil properties. These values are corrected to account for The overburden pressure Dilatancy in saturated fine sands and silts Correction for overburden pressure The penetration resistance of soil depends on the over burden pressure. At deeper depth in-situ soil will have higher overburden pressure … Read more
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