studying really very sien...
this is what i'm studying now....
BRICK
- a rectangular block of clay or cement sand that is used in construction work.
- solid or hollow
- moulded in plastic state and baked in kiln
- green brick: wet brick that is moulded and is drying before being baked in a kiln.
- clinker brick: surface of some brick that is too close to the fire during firing, partly vitrified, and the colour change to purplish and darker colour.
- dry-pressed process: use thicker clay mix, so it forms more accurate, sharper-edged bricks. Need greater force of pressing and longer firing therefore more expensive.
- firebrick: used in fireplace because resist temperature. Why? because it contains metal oxide.
- glazed brick: glazed surface. for hygiene, resist corrosion and decorative purpose.
- vitrified brick: rich in lime and iron oxide. fired at vitrifying heat to mak
e it impervious.
glazed brick.
Types of Brick:
- normal brick: used for internal and external partition. Not load bearing. Plastering work on both sides.
- facing brick: for external wall
- engineering brick: made from selected brick. very strong. load bearing wall.
- uniform in shape and sizes
- uniform in dimensions
- uniform in texture
- not defects
- well burnt
- hollow, wider and bigger
- consists of Portland cement and other aggregates
- shall not be soaked in water
- dipped before laying
- shall not be laid until matured for at least 14 days
