Sand. Sand shall consist of siliceous material having hard, strong, durable, uncoated particles, free from undesirable amounts of dust, lumbs, soft, or flaky particles or other deleterious substances. The amount of different undesirable substances shall not exceed the percentage limits by weight as specified in relevant NS/I.S. Codes but in no case, the total amount of all undesirable substances shall exceed five percent by weight. All fine aggregate (sand) shall conform to I.S. 383‑1970. Sand for use in concrete shall be natural sand. Sand shall be clean, well graded, hard, strong, durable and gritty particles free from injurious amounts of dust, clay, soft or flaky particles, shale, salts, organic matter, loam, mica or other deleterious substances and shall be approved by the Engineer. When the quality of fine aggregate is doubtful, it shall be tested for clay, organic impurities and other deleterious substances as laid down in I.S. 383‑1970. The fine aggregate shall be of the sizes as specified below. a. Cement concrete topping of thickness 40 mm and above ‑ fineness modules between 2 and 3. b. Cement concrete topping of thickness 10mm and above ‑ fineness modules between 4 and 6. The Contractor has to identify the source of sand. The Contractor shall conduct sieve analysis test from reputed test lab for each batch of sand at his own cost.
Appears in 3 contracts
Sources: Contract Agreement, Procurement Agreement, Contract Agreement
Sand. Sand shall consist of siliceous material having hard, strong, durable, uncoated particles, free from undesirable amounts of dust, lumbs, soft, or flaky particles or other deleterious substances. The amount of different undesirable substances shall not exceed the percentage limits by weight as specified in relevant NS/I.S. Codes but in no case, the total amount of all undesirable substances shall exceed five percent by weight. All fine aggregate (sand) shall conform to I.S. 383‑1970383-1970. Sand for use in concrete shall be natural sand. Sand shall be clean, well graded, hard, strong, durable and gritty particles free from injurious amounts of dust, clay, soft or flaky particles, shale, salts, organic matter, loam, mica or other deleterious substances and shall be approved by the Engineer. When the quality of fine aggregate is doubtful, it shall be tested for clay, organic impurities and other deleterious substances as laid down in I.S. 383‑1970383-1970. The fine aggregate shall be of the sizes as specified below.
a. Cement concrete topping of thickness 40 mm and above ‑ - fineness modules between 2 and 3.
b. Cement concrete topping of thickness 10mm and above ‑ - fineness modules between 4 and 6. The Contractor has to identify the source of sand. The Contractor shall conduct sieve analysis test from reputed test lab for each batch of sand at his own cost.
Appears in 1 contract
Sources: Procurement Agreement