Bricks

Masonry is a construction whereby units are laid together to form a structure. It’s important for its strength, appearance, durability, resistance to water, noise and fire.
Materials that can be used for producing bricks (can shrink) are clay, sand-cement, calcium silicate and concrete.

Clay brick size in dimensional tolerance (MS 76/BS 3921: ASTM C62 215 x 102.5 x 65 mm) made of clay or shale is strong and durable. Main offers are compressive strength (5-100 N/mm2), water absorption, initial rate suction and efflorescence (salt soluble content). It was differed by colors, textures, size and density. Clay is small size (2 microns) affecting cohesiveness, forming characteristics, drying and firing properties. It can be graded as Severe Weathering: frost resistance, Moderate Weathering: Moderate resistance and None Weathering: Back up.

Basic used of face bricks are in Veneer, Cavity walls and Multi-Wythe reinforced walls. They have to meet standards for absorption, uniformity and strength.

Calcium silicate brick made of 90-95% sand, aggregate/lime ratio of 20:1 and water undergoing mixing (mixture of component), pressing (shaping and compacting with high pressure) and autoclave (curing combining lime and sand to form calcium silicate with steam). Its water absorption rate is 6 to 16% and strength is 14-27.5 N/mm2.

Concrete brick [337.5, 225. 112.5] block consists of aggregate; cement and water with strength of –refer notes-. Three main types of blocks are solid blocks (containing no formed cavities), hollow blocks (fully penetrate cavities) and cellular blocks (not fully penetrate cavities). It goes through mixing, molding, curing and cubing.

Types of brick bonding are: Stretcher, English, Quarter, Header, Flemish, Herringbone, and Basket.

-Still have some value in notes-