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

7.12 Curing.
All concrete shall be protected from the effects of sunshine, rain, running water or
mechanical damage and cured by covering with jute, hessian or similar absorbent
material kept constantly wet or a layer of sand kept covered with water is also
permissible for a continuous period of fourteen days at least from the date of
placement. Should the Contractor fail to water concrete continuously, the Engineer
may provide labour and materials required for curing and recover the cost from the
contractor.
7.13 Finishing.
Immediately after removal of forms, any undulations, depressions, cavities, honey
combing, broken edges or corners, high spots and defects shall be made good and
finished with C.M. 1:2, but the necessity of such finishing must be exceptional and
total surface requiring finishing shall not exceed 1%. Where concrete surface is to
receive plaster, the surface shall be roughened immediately after removal of forms
and within a day thereof to secure a hold for the plaster. The rate of concrete is
inclusive of this roughening and finishing. Concrete after finishing shall be cured
for the full period.
7.14 Joints.
Construction joints:
Construction joints are defined as joints in the concrete introduced for convenience
in construction at which special measures are taken at achieve subsequent
continuity without provision for further relative movement.
Submittal:
No concreting shall be started until the Engineer has approved the methods of
placing, the positions and form of the construction joints and the size of lifts.
GTS : General Technical Specification. Page 64