Tender Notice No: . VRTD/09/2013. - Gujarat Electricity Board

The rate quoted shall be inclusive of all labour, materials, tools, tackles, machinery etc. for all
operation mentioned above. Payment shall be made for excavated net quantity as per plan, plus
permissible side slope wherever necessary as per I.S.
Item No. 17: Providing B.B masonry in foundation and up to plinth level in c.m. (1 : 6)
including racking out joints up to 12mm depth, required scaffolding, curing etc. complete
as directed.
Only standard size bricks duly approved and conforming to I.S. 1077, latest edition or approved
locally available size as per British system, till Govt. has allowed use of the same. In case quality
of local brick is not found suitable, contractor will have to procure the approved quality of bricks
from other places without any extra charge or compensation. As far as possible bricks of different
size shall not be used in same work, however, in exceptional case Engineer-in-charge may permit
same considering suitability.
Bricks shall have uniform surface, straight edges, giving ringing sound, properly uniformly burnt. If
desired crushing strength, absorption test etc. shall have to be arranged by contractor without any
extra cost. Sample of brick shall be got approved before collecting bricks on site and bricks
collected on site shall confirm to approved sample.
Cement mortar shall be as specified in the item. Mortar used for the work shall be stiff as per I.S.
2250.
Before brick laying is started, brick shall be wetted to saturation point, by immersion or watering.
Brickwork shall be carried out in approved bond, generally English Bond.
Brickwork shall be carried out in line and level. Each brick laid on mortar bedding shall be pressed
properly so that it spreads all-round. Joints between bricks shall be not more than 10mm and not
less than 5mm. Joints shall be properly filled with trowel edge. Brickbats or half brick shall not be
used, except at corner or where absolutely necessary and permitted.
Each layer of brick shall be in line and plumb. Checking shall be done for verticality of the work.
Vertical joint shall be perfectly vertical and horizontal joints shall be perfectly horizontal. Brick
works shall be raised in uniform height and no height shall be more than 1.2 meter than other.
When joint is to be left for further work, it shall be step joint. Work shall be carried out as per I.S.
Code for brick laying.
Mortar that can be utilized within initial setting time of the cement, shall be mixed with water.
Mortar shall be prepared on pucca platform or on steel plates platform. Mortar shall be uniformly
mixed dry and then required quantity of water shall be added. If work demands, mixing of mortar
in machine, same shall have to be arranged without any extra cost.
All joints vertical and horizontal shall be properly racked out to a depth of 12 mm when mortar is
green and soft. The exposed faces of walls are to be provided with flush joint. Brickwork shall be
cured with water for a period of 10 days, keeping constantly moist. During rainy season green
work shall have to be protected from rain, by covering it with suitable covering.
Work shall be measured in volume. Any opening more than 0.5 sq.m. area shall be deducted. No
payment shall be made for keeping in masonry, any pipe, sleeves, etc. supplied by department.
Thickness of brick shall be paid as per standard practice half brick, full brick, 1 ½ bricks etc. as
shown on drawings.
Item No. 18 Providing B. B. Masonry in C.M. (1:6) for super structure, including racking out
joints 12 mm depth, scaffolding curing etc. complete as directed.
Specifications of items No.1 shall be applicable. Racking out of joints shall be done when
masonry is green and mortar is wet.
Scaffolding for working, shall be fixed properly. Proper size of bullies, bamboos shall be used for
wooden scaffolding. They shall be properly supported in wall, on ground and tied with string.
Scaffolding shall be with arrangement to take load of materials and men working I.S. 3696 shall
be followed for safety of scaffolds and ladders. Contractor shall make arrangement for proper
approach with ladders etc. for inspection of work.
In case of structure with G.F. only, rate shall be applicable for parapet on terrace.
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