Block Factory in Khamis Mushait / مصنع بلوك خميس مشيط
Building element Wall Wall
Size Various sizes
Mixing ratio 1 cement : 6-8 aggregate
Cement used per m3 250 – 300kg
Resistance to earthquakes Very good
Resistance to typhoons Very good
Resistance to rain Very good
Resistance to insects Very good
Climatic suitability All climates
Stage of experience Widely used method
Durability Approx. 40 years
Concrete block construction has gained importance and has become a valid alternative to fired clay bricks. The essential ingredients of concrete are cement, aggregate (sand, gravel) and water. Concrete blocks are produced in a large variety of shapes and sizes. They can be produced manually or with the help of machines.
Most commonly used concrete blocks are sized:
Length: 40cm (half blocks: 20cm)
Hollow blocks: are the most common type of concrete blocks, having one or more holes that are open at both sides. The total void area can amount to 50% of the gross cross-sectional area.
Solid blocks : have no cavities, or- according to standards- have no voids amounting to not more than 25% of the gross cross-sectional area.
- High compressive strength, resistance to weathering, impact and abrasion
- Capability of being molded into components of any shape and size
- Good fire resistance up to about 400°C
- Rapid construction
- Very good stability
- Can be made larger than solid blocks
- Are lighter in weight
- Construction of walls is easy and quick
- The voids can be filled with steel bars and concrete, achieving high earthquake resistance
- The air space provides good thermal insulation
- The cavities can be used for electrical installation and plumbing
- Production can be started with little capital.
- Less working time required for brick laying work with concrete blocks.
- Less mortar consumption
- Generally, production costs of concrete blocks are slightly lower than of fired bricks.
Block Factory Pictures