They are structural clay products, manufactured as standard units, used in building construction

a wall supported by a steel or concrete structure of a building. A curtain wall does not have any support functions itself, as does bearing wall

a line on the surface of something along which it has split without breaking apart

It is a mixture of paste and aggregates. The paste,composed of Portland Cement and water, coats the surface of the fine and coarse aggregates.Through a chemical reaction called hydration,the paste hardens and gains strength to form the rock

It is a broad category of coarse- to medium-grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates

the process of fastening together pieces of metal with rivets that do not have threads

A concrete mixture which has high workability, high strength, high modulus of physical property, high density, high dimensional stability, low permeability and resistance to chemical attack

It has Dense, highly viscous, petroleum-based hydrocarbon that is found in deposits such as oil sands and pitch lakes (natural bitumen) or is obtained as a residue of the distillation of crude oil (refined bitumen).

It is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants

the process of fastening together pieces of metal by melting a bonding metal between similar metals

building materials such as rock, brick, or tile, often bound together by mortar or cement

They are used to join pieces of wood, mainly when the adjoining pieces connect at an angle of 90°

They are relatively rigid walls used for supporting soil laterally so that it can be retained at different levels on the two sides