How to do Brick masonry of Load Bearing wall & which bond is good for 230 mm wall
How to do Brick masonry of Load Bearing wall & which bond is good for 230 mm wall
a. Bricks should be cured within 30 minutes before its use.
b. Layout shall be done according to the GFC drawing and same is to be approved by the engineer in-charge..
c. Proper mortar mix should be prepared through mixture machine only i.e. for 9” brickwork, 1:6 (1 cement: 6 stone dust), and for 4.5” brickwork, 1:4 (1 cement: 4 stone dust).
d. For 9” brickwork, brick shall be laid in English Bond, unless otherwise specified.
e. All loose material, dust to be removed from RCC surface with wire brush and surface to be wetted with water.
f. Chipping should be done on all RCC members so as to remove any extra concrete on the slab/column and chicken wire mesh to be fixed with slurry (on vertical RCC member).The total gap between RCC and brickwork should not be more than 15mm ,this thickness includes cement paste, chicken wire mesh and thickness of mortar.
g. Brick are to be laid as per the layout, on the bed of mortar, with frog of the brick facing upward and leaving mortar thickness within a range of 10-15 mm on all four side of brick.
h. Each brick shall be properly placed and set in position by gently pressing into the mortar bed with handle of trowel.
i. On placing the next brick, joints between the two bricks is to be fully filled with mortar, so that no hollow space is left between the bricks.
j. Complete layer of brick is to be laid in the stated manner.
k. Instead of breaking full brick, brick bats are to be brought in use and to be used as closure near the end.
l. Brickwork should be in proper line, level and plumb.
m. Diagonal and right angles of the room should be as per requirement.
n. All courses should be laid truly horizontal and all vertical joints in the alternate course shall come directly one over the other.
r. Last course of brickwork near beam/slab bottom should be properly packed with mortar leaving no gap in between them.
s. Brick joints on the face side should be filled with mortar & should be raked out up to a depth of 6 mm.
t. Joints on un-face side to be filled with mortar and to be cleaned using wire brush/coconut broom, on the very same day of brickwork.
u. Mortar fallen on the laid empty cement bag, is to be collected & brought in use at an interval of every one hour.
v. Quantity of mortar prepared should be sufficient enough, such that no mortar is left after the closing of work.
w. Clean the area after finishing of work.
x. Date of brickwork should be marked to monitor the curing period.
y. 7 to 10 days curing should be done.
Comments