The manual presents various tests on highway construction materials as stipulated in Indian standards and manuals. The tests on soil subgrade, aggregates, bitumen and bituminous mixes are covered with detailed procedure. All calculations and concepts required to arrive at the decision on the suitability of the material are given in very concise and lucid manner. The latest specifications of the Ministry of Road Transport and Highways (MoRTH), the Indian Roads Congress (IRC) and the Bureau of Indian Standards (BIS) codes have been followed throughout. The manual is intended for undergraduate students of Civil Engineering, postgraduate students of Transportation Engineering, field engineers, researchers and consultants.

Preface / PART – I TESTS ON SUBGRADE SOIL: Grain Size Analysis / Atterberg’s Limits /Compaction Test / California Bearing Ratio Test / Determination of Field Density / Plate Load Test / PART – II TESTS ON ROAD AGGREGATES: Grain Size Distribution / Aggregate Impact Test / Ten-Percent Fine Value / Specific Gravity and Water Absorption Test / Los Angeles Abrasion Test / Flakiness and Elongation Index Test / Soundness Test / Sand Equivalent Test / Stone Polishing Test / Stripping Test / PART – III TESTS ON BITUMINOUS MATERIALS: Penetration Test / Ductility Test / Softening Point Test / Elastic Recovery Test /Specific Gravity Test / Viscosity Test / Flash and Fire Point Test / Test on Bitumen Emulsion / Polymer and Rubber Modified Bitumen / Marshall Method of Bituminous Mix Design.

Undergraduate Students, Professionals and Researchers