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Volume-IF - JantERmantER

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DCPL-K4A02<br />

3.15.1 Finish<br />

Unless otherwise mentioned in the schedule of items plastering shall be<br />

done with cement sand mortar - 1 part by volume of cement to 4 parts by<br />

volume of clean, sharp, well graded sand. For sand cement plaster, sand<br />

and cement in the specified proportion shall be mixed dry on a watertight<br />

platform and minimum water added to achieve working consistency. For<br />

lime gauge plaster, lime putty or hydrated lime and sand in the required<br />

proportion shall be mixed on a watertight platform with necessary addition<br />

of water and thoroughly ground in mortar mill. This mix shall than be<br />

transferred to a mechanical mixer to which the required quantity of cement<br />

is added and mixed for at least 3 minutes.<br />

No mortar which has stood for more than half an hour shall be used.<br />

Plaster, when more than 12 mm thick, shall be applied in two coats. All<br />

plaster work shall correspond to IS:1661- latest edition.<br />

Generally, all plastered surfaces shall have a standard finish unless<br />

otherwise shown on the drawing or directed by the Engineer. The interior<br />

plaster shall be finished to a smooth surface by steel trowelling. The<br />

exterior surfaces shall be finished with a wooden float.<br />

However, if shown on the drawing or directed by the Engineer the plastered<br />

surface shall have a neat cement finish. Immediately after achieving a true<br />

plastered surface with the help of a wooden straight edge, the entire area<br />

shall be uniformly treated with a paste of neat and rubbed smooth with a<br />

trowel.<br />

3.16.0 Cement Concrete (Plain and Reinforced)<br />

Shall be as laid down in “Techncial Specification for Cement Concrete (Plain<br />

and Reinforced)” Section - III.<br />

4.0 TESTING AND ACCEPTANCE CRITERIA<br />

4.1 Roads<br />

All testing, as mentioned in the body of the specification and as mentioned in<br />

Clause No. 900 of Specification for Roads and Bridge Works, 1983 published<br />

by IRC on behalf of Ministry of Shipping and Transport (Roads Wing) shall<br />

be carried out by the Contractor as per direction of the Engineer. No extra<br />

payment shall be made for such tests.<br />

4.2 Masonry and Plastering<br />

(PCA.775.S034sca7) V.II-D2/S-VII : 29

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