SAIL General Technical Specification - Engineering Projects India Ltd.

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© 2007 MECON Limited All rights reserved General Technical Specification The concrete mix used for blocks shall not be richer than one part by volume of cement to six parts by volume of combined aggregates before mixing. 5.7.6 Surface texture and finish Surface texture, that is, very fine closed texture or coarse open texture and finish, whether coloured or not shall be according to the drawing, description in the Schedule of Items or instructions of the Engineer. 5.7.7 Marking and certificate The blocks shall be marked permanently indicating the Grade of the unit, identification of the manufacturer and the year of manufacture. Manufacturers test certificate shall be supplied with the delivery of each lot. 5.8 Cement, Lime and Water Cement, lime and water shall conform to the specification under the Section Concrete of this part. 5.9 Sand for Masonry Mortar Sand for masonry mortars shall be natural sand, crushed stone sand or crushed gravel and shall comply with IS : 2116 - 1980 "Sand for Masonry Mortars". The sand shall be hard, durable, clean and free from adherent coatings and shall not contain amount of clay, silt and fine dust more than 5% by wt. Sand shall not contain any harmful impurities such as iron pyrites, alkalies, salts, coal, mica and organic matters. The particle size grading of sand for use in mortars shall be within the limits as specified in Table I of above code. 6.0 SAND FOR PLASTERING Sand for use in mortars for internal wall, ceiling and external plastering and rendering shall conform to IS:1542 -1992. It shall not contain any harmful impurities such as iron pyrites, alkalis, salts, coal, mica and organic matters. Percentage of salt and dust shall not be more than 5% by weight. Grading of sand shall be within the limits specified in clause no. 5.1 of above code. Fineness modulus of naturally occuring sand shall not be less than 1.5. 7.0 MATERIALS FOR FLOORING & PAVING 7.1 Cement and Binders 7.1.1 Cement 7.1.2 Water 7.2 Aggregates Cement, fine aggregates, reinforcement and water used shall comply with the requirements of concrete as per clauses 2.1, 2.3, 2.6 and 2.7 of this part. Water for construction shall be clean, soft, free from loam, salt and organic materials. Hard water shall not be used. 7.2.1 Coarse Aggregate Civil Page 12 of 42 GS-07
© 2007 MECON Limited All rights reserved General Technical Specification 7.2.1.1 Coarse aggregate shall conform to the requirement as per clauses 2.1 and 2.2 of this part. 7.2.1.2 For granolithic floor the screeded bed shall comprise of aggregates size 15mm and down graded and topping shall comprise of clean fine stone chippings, size 4mm and down. For concrete floor with hardener treatment the topping shall comprise of stone chippings, size 6mm and down and for in-situ terrazzo flooring, chippings shall be within sizes 12mm to 6mm graded. The marble chips for topping of terrazzo floor shall be of 3-6mm size and shall conform to Grade-I of IS : 2114-1984 "CP for laying in-situ terrazo floor finish". 7.2.2 Common burnt clay bricks 7.2.3 Rubble 7.3 Tiles 7.3.1 Terrazzo Tiles Common burnt clay bricks shall conform to IS : 1077-1992 and comply with requirements under the section "Brick and Stones" of this part. Rubble of approved quality shall be used and shall be clean and free from dirt. The loose and weathered sections shall be removed before use. Rubble used as hard core shall have a least lateral dimension (thickness) between 100mm and 225mm, depending on the thickness of hardcore. Terrazzo tiles shall be machine made under a minimum pressure of 140 kg/cm2. It shall have a minimum total thickness of 20mm including a minimum of 6mm thick topping. It shall be of size, texture, colour, shade and pattern as specified in schedule of item and as approved by the Engineer. 7.3.2 White Glazed Tile 7.3.3 Coloured tiles 7.3.4 Marble tiles White glazed tiles shall be of approved manufacture and quality and shall conform to IS:777 - 1988 "Glazed Earthenware Tiles. They shall be true in shape, free from hair cracks, crazing spot, chipped edges and corners and surface shall be perfectly flat without warps and of uniform colour. The top surface shall be glazed either gloss or matt as specified. The tiles, normally shall be 149mm x 149mm or 99mm x 99mm size and shall not be less than 5mm thick or as specified. The tolerance on average facial dimension value shall be plus or minus 0.8 and on thickness plus or minus 0.5mm. The specials such as coves, internal and external angles, beads, cornices and their corner pieces shall be of specified sizes and of thickness not less than the thickness of tiles. Only glaze shall be coloured as specified. The size and specification of tiles shall be same as for the white glazed tiles. It shall conform to IS : 1130 -1960 "Marble (Blocks, Slabs and Tiles)". Marble for paving and facing work shall be of selected quality, hard, sound, dense and homogeneous in texture (with crystalline texture) and free from cracks, decay, weathering and flaws and shall be of kind and quality, size and thickness as specified in schedule of items. The samples of tiles shall be got approved by the Engineer before use. The tiles shall be cut to the requisite dimensions. Civil Page 13 of 42 GS-07
Page 1 and 2: 1.0 GENERAL 1.1 Scope 1.2 Standard
Page 3 and 4: © 2007 MECON Limited All rights re
Page 7 and 8: 3.4 Steel Tubes © 2007 MECON Limit
Page 11: © 2007 MECON Limited All rights re
Page 17 and 18: 9.2.1 Butt hinges © 2007 MECON Lim
Page 23 and 24: 12.11.1 Wax polish for Wood work ©
Page 27 and 28: 15.0 LEAD 15.1 General © 2007 MECO
Page 31 and 32: 18.13 CP Flush Valves for EWC © 20
Page 35 and 36: 20.6 Steel Pipes © 2007 MECON Limi
Page 37 and 38: 21.8 Kerbs 21.8.1 Stone kerbs © 20

SAIL General Technical Specification - Engineering Projects India Ltd.

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