Brick
The brick is obtained by the molding clay in rectangular blocks of uniform size and then by drying and burning these blocks. as bricks are of uniform size, they can be properly arranged and further, as they are light in weight, no lifting appliance is required to for them. the brick does not require dressing and the art of laying bricks is so simple that the brickwork can be carried out even with the help of unskilled labourers. it's easily available in any place. the mortar to be used for the brick masonry.
size And Weight Of Brick
The BIS has recommended the brick of uniform size. such brick is known as the modular bricks and the actual size of modular brick is 190mmx90mmx90mm. with mortar thickness, size of such a brick becomes 200mmx100mmx100mm and it is known as the normal size of the modular brick. thus the nominal size of brick includes the mortar thickness.
it is found that the weight of 1cum of the brick earth is about 1800 kg. hence the average weight of a brick will be about 3 to 3.5kg.
Some Definitions
STRETCHER:- This is a brick laid with its length parallel to the face or front or direction of a wall. the course containing stretcher is called a stretcher is called a stretcher course.
HEADER:- This is a brick laid with its breadth or width parallel to the face or front or direction of a wall. the course containing headers is called header course
ARRIS:- The edges formed by the intersection of the plane surfaces of brick are called the arrises and they should be sharp, square and free from damage.
BED:- The lower surface of the brick when laid flat is known as the bed.
BED JOINT:- The horizontal layer of mortar upon which the bricks are laid is known as a bed joint.
LAP:- The horizontal distance the vertical joint in successive courses is termed as a lap and for a good bound, it should be one-fourth of the length of a brick.
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