Fly Ash Bricks and Comparison with Clay Bricks.

Another major restraint impacting the growth of global fly ash bricks market is the red bricks could be easily manufactured by small scale industries while the fly ash bricks manufacturers have to bear with the sales taxes, excise duties and service taxes amongst others. Trends.

Fly ash bricks account for about one-sixth of India’s annual brick production. Fly ash brick plants use more than 20 million tons of fly ash, which would otherwise have been dumped into hazardous ash mounds and ponds. The timely flow of carbon revenues through the World Bank project has helped in increasing the participation of microenterprises.

Fly-ash brick making plant manufacturers acknowledge this growth in demand but are also of the view that if these bricks are to become an inseparable part of Indian construction, there has to be a prioritization of political will in this direction coupled with an active role of thermal power companies.

Fly Ash bricks are made of fly ash, lime, gypsum and sand. The raw materials are blended in desired proportions in a Pan mixer for 4-5 minutes and compressed. They undergo curing for a minimum of 14 days and are then air dried for 7 days. Strength of these bricks can be engineered by varying the compositions. These can be extensively used in.

The bricks, tiles and blocks are brick red in colour, but changing the initial composition can make a variety of colours. Difference between Flyash brick and Clay bricks. Flyash brick. Uniform pleasing colour like cement. Normal clay brick. Varying colour as per soil. Uniform in shape and smooth in finish. Uneven shape as hand made. Dense composition. Lightly bonded. No plastering required.

Bricks may be made from a no. of different kinds of materials but they must usually posses a certain amount of plasticity. Fly ash is one of them. Fly ash is an industrial waste of thermal power station using pulverized coal. Fly ash generally contains about 5% to 6% unburnt carbon. Its addition in clay, therefore result in better burnt bricks.

Results showed that the burnt clay bricks without fly ash have higher flexural strength as compared to the bricks having fly ash. Decrease in flexural strength was observed with increase in fly ash content. Minimum flexural strength was observed for bricks having 25% of fly ash (i.e. 3 MPa), which is 60% less than the control specimen.

Advantages of using Fly ash bricks. admin. February 5, 2013. Fly Ash Bricks. It’s almost a decade old topic, but still majority of people in construction field have been discussing this topic even now. It’s ok, after all people of india has now been convinced to use an alternative material to replace red clay bricks to sustain the environment. It’s a Proven fact that Fly ash bricks.

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Our fly ash bricks are available in several load-bearing grades. Owing to their high compressive strength, our fly ash bricks eliminates breakages during transit. Our fly ash bricks are more compatible with cement mortar. Furthermore, our fly ash bricks provide a better resistance to earthquake loads.

The fly ash bricks were tested as per IS 12894-1990 that is coed for fly ash-lime bricks and the conventional bricks were tested as per procedure laid down in IS 3495-1973 for the following test: Compressive Strength Water absorption Efflorescence 1. Compressive Strength test The red and fly ash bricks were tested on the.

The conventional burnt clay bricks are usually employed for constructional purposes. However, there is another type of bricks called fly ash bricks that can also be broadly employed in all such works. When compared on the basis of weight and substantiality, this variety of brick is relatively better than the conventional bricks. Its application.