Quality Control Lab Tests
Step-by-step procedures for quality control tests on soil, aggregate, cement and bitumen, as per IS codes.
🟤 Soil Tests (12)
Method for Preparation of Dry Soil Samples
IS 2720 (Part 1)How to dry, break and sieve soil before testing.
Read More »Determination of Water Content
IS 2720 (Part 2)Oven-dry method to find the moisture in soil.
Read More »Determination of Specific Gravity of Soil
IS 2720 (Part 3)Density bottle method for soil solids.
Read More »Grain Size Analysis (Sieve)
IS 2720 (Part 4)Sieve analysis to find gravel, sand and fines.
Read More »Grain Size Analysis (Hydrometer)
IS 2720 (Part 4)Hydrometer method for silt and clay fractions.
Read More »Liquid Limit (Casagrande Apparatus)
IS 2720 (Part 5)Water content at which soil starts to flow.
Read More »California Bearing Ratio (CBR) – Laboratory
IS 2720 (Part 16)Strength of subgrade for pavement design.
Read More »Total Soluble Sulphates in Soil
IS 2720 (Part 27)Volumetric method to check harmful sulphates.
Read More »Dry Density by Sand Replacement
IS 2720 (Part 28)Field test to check compaction of layers.
Read More »🪨 Aggregate Tests (9)
Specific Gravity of Aggregate (Above 10 mm)
IS 2386 (Part 3)Wire basket method; also gives water absorption.
Read More »Specific Gravity of Aggregate (Below 10 mm)
IS 2386 (Part 3)Pycnometer method for fine aggregate.
Read More »Soundness of Aggregate
IS 2386 (Part 5)Resistance to weathering (sodium/magnesium sulphate).
Read More »🧱 Cement & Concrete Tests (5)
Standard Consistency of Cement Paste
IS 4031 (Part 4)Vicat apparatus; water needed for normal paste.
Read More »🛢️ Bitumen Tests (3)
Softening Point of Bitumen
IS 1205Ring and ball test; temperature at which bitumen softens.
Read More »