PACKAGE : I Bid Document VOLUME : II - Public Health Engineering

6.2 Brick masonry:
a. Manufacture:
Common burnt clay building bricks shall conform to the requirements of
IS:1077 and shall be of quality not less than class 20 with moisture
absorption rate not exceeding 15 percent as defined in IS:1077. The bricks
shall be chamber burnt and shall have sharp corners and smooth faces and
shall not be damaged in any manner and sizes shall conform to the works
sizes specified with tolerances as given in 6.2 IS:1077.
b. Samples:
The Contractor shall deliver samples of each type of brick to the Engineer,
and no orders shall be placed without the written approval of the Engineer.
All the bricks used in the works shall be of the same standard as the
approved samples. The samples shall be preserved on site, and
subsequent deliveries shall be checked for uniformity of shape, colour and
texture against the samples. If in the opinion of the Engineer any deliveries
vary from the standard of the samples, such bricks shall be rejected and
removed from the site. Samples of bricks shall be tested in accordance with
IS:3495 by the contractor.
c. Uniformity:
The bricks selected for exposed pointed brickwork walls shall be of uniform
colour, deep cherry red or copper colour, and uniform texture. Only such
bricks as are permitted by the Engineer shall be used.
6.3 Setting out.
All brickworks shall be set out and built to the respective dimensions, thickness and
heights as indicated.
GTS : General Technical Specification. Page 44