Hollow Bricks/Blocks

How it's made hollow blocks or hollow bricks

Hollow blocks or hollow bricks concrete blocks have been developed as an alternative to bricks. The products are widely used in constructional activity. The hollow blocks are made up of cement, stone chips; stone dust and sand are not only cheaper than bricks but have other specialties as well.

Hollow bricks are a good construction material. Nowadays, it is used at various construction buildings and compound wall. It is very cheap in cost, strong and available at all local construction material shop. Many people used this hollow bricks because it reduces heat and make the building in cool.

The cement concrete dense/ #hollowBricks and blocks are replacing conventional building bricks gradually due to the inherent properties like strength, size accuracy and insulation. These are used both for laying load bearing and non-load bearing walls.

As the constructional activity is growing day by day, there is a good demand for hollow and cement concrete bricks. Cement concrete dense/ hollow bricks and blocks are very popular and are extensively used in building construction throughout the country because of the many advantages such as durability, strength and structural stability, fire resistance, insulation and sound absorption it Possess. 

The cement concrete blocks have an attractive appearance and are readily adaptable to any style of architecture. It lends itself to a wide variety of surface finishes for both exterior and interior walls. 

The blocks are used for both load bearing and non-load bearing walls. The hilly states of India have high humidity, dampness and rainfall, so the blocks are much useful for the N.E.

Region, Himachal Pradesh, J&K, and U.P. etc. 

 It is much needed in regions where traditional bricks are not easily available. It is also popular in case of requirement of low cost housing. The main advantage of concrete blocks is that their strength can be engineered to requirement. 

The global concrete block and brick manufacturing market is gaining from the booming construction sector worldwide. Rapid urbanization leading to the demand for new housing units in developing countries is stoking demand for concrete blocks and bricks. 

#HollowBricksMakingProcess : Concrete is a mixture of ordinary Portland cement, mineral aggregate (sand and stone chips) and water. The water used in preparing the concrete serves two purposes: (1) It combines with the cement to form a hardened paste (2) It lubricates the aggregates to form a plastic and workable mass The water that combines with the cement varies from about 22 to 28% of the total amount of mixing water in concrete. Mineral aggregates (sand and stone chips) are normally divided into two fractions based on their particle size. 

Aggregate particles passing through the No.4 or 4.7 mm Indian Standard sieve are known as fine aggregate. The particles retained on this sieve are designated as coarse aggregate. Natural sand is often used as fine aggregate in cement concrete mixture. Coarse aggregate are crushed stone chips. Crushed stone chips broken into particle sizes passing through the 4.7 mm sieve may also be used as fine aggregate. 

The maximum size of the coarse aggregate that may be used in cement concrete hollow blocks is 12.5 mm. However, the particle size of the coarse aggregate should not exceed one third thickness of the thinnest web of the hollow blocks. Ordinary Portland cement is the cementing material used in cement concrete hollow blocks.