Construction of brick units bonded together with cement or lime mortar is tenned as brick masonry.
Some terms used in Brick masonry
●Stretcher: It is a full brick which is laid with its length parallel to the face of the wall. If all the bricks are laid as stretchers the course is named as stretcher course.
●Header: It is a hill brick which is laid with its length perpendicular to the face of the wall. A course of brickwork entirely composed of headers in header course.
●Bed: It is a term used to indicate the lower surface of brick in each course.
●Bond: It is a term applied to the over lapping of bricks in a wall in alternate courses, to bind the whole wall together.
●Closer: It is a portion of brick cut in such a manner that its one long face remains uncut.
1 King closer: It is a brick which is cut in such a way that the width of one of its end is half of that of a full brick.
2. Queen closer: It is a term applied to a brick which is half as a full brick.
Queen closer
4. Mitred closer: It is a brick whose one end is cut splayed or mitred for the full width.
●Brick bat: It is the portion of a brick cut across the width or a brick cut by some fraction of its length. If a brick cut by half size in it called as half bat and cut by thee quarter size is three quarter bat.
●Lap: The horizontal distance between two vertical joints is termed as lap.
●Arises: The edges of the bricks are called as arises. Arises should be sharp and unbroken.
●Bed joint: Joints parallel to the bed etcher Course of bricks or stone in acourse are termed on bed joints.
●Perpends: It is a verticaljoint on the face of a wall directly over vertical joints of alternate courses.
●Frog: Depressions provided in the face of the brick is called as frog. It forms a key with mortar to prevent slinding.
Points to be observed in the construction of Brick masonry
1. The bricks used in a good work should be sound, hard and well burnt with uniform size, shape and colour.
2. The bricks should be thoroughly soaked in clear water before use.
3. Only specified mortar of a good quality should be assed
4. No brick-bats should be used in the work except closers.
5. The progress of work in raising masonry should be in unifonn layers at one level.
6. Brickwork should be ensured that aproper bond is maintained through out the work.
7. The bricks should be laid on a full bed of mortar. The frog in the brick should be at the top and filled with mortar to ensure proper adhesion.
8. Scaffolding should be made for con. struction in higher places.
9. All the course should be laid truly hori. zontal and all the vertical joints should be truly vertical. The verticality should be checked with plumb bob.
10. All the finished masonry work should be kept wet for at least seven days, Curing for two weeks for cement mortar
Thickness of brick wall
The thickness of brick wall are provided by the following terms
1. The total load action on the wall
2. The total height of the wall
3. The quality of materials used for the construction of wall
4. The length of wall
5. The height between the one floor to other
Let the total load acton the wall be ‘P’ area ofthe wall ‘A’length of the wall ‘V thickness of wall ‘V admissible bearer capacity ‘0’
This is the formula to find the thickness ofthewallA= P/0 TxL=P/0
T=P/L x 0 the thickness of wall.
