Rice Husk Ash Treatment

Rice husk ash (RHA) obtained from agricultural by-product is a potential source for partial cement replacement to produce concrete brick. Studies shows that primary rice husk ash when treated with heat at 500degree C were used to substitute cement in raw material mixtures. Preliminary analyses were conducted to evaluate some properties of rice husk ash such as loss of ignition (LOI), morphology, chemical and phase compositions. The X-ray powder Diffraction (XRD) and X-Ray flourescence (XRF) results indicated that silica (SiO2) is the major component. Transmission Electron Microscopy (TEM) images showed that RHA particles were in polygonal shapes with diameter approximately from 300 nm – 1 μm. Cement was replaced with RHA by weight at 10 %wt. The effects of RHA on the physical and mechanical properties of the aggregate cement bricks were investigated. Results demonstrated that the compressive strength of concrete bricks increased with age at curing and decreased as the percentage of RHA content increased. It is recommended that further studies should be carried out to achieve optimum parameters for production of concrete brick in economic aspect

The rice husk ash (RHA) could be used to replace cement for production of concrete bricks to reduce material cost and emission of CO2 due to less cement utilization. However, the content of RHA needs to modify to achieve optimum parameters for production of concrete brick. Rice husk ash after heat treatment is advantageous on reducing organic component that may contribute to chemical resistance of concrete brick.

APPLICATIONS OF RICE HUSK ASH :

· High-performance Concrete.

· Insulator.

· Green concrete.

· Bathroom floors.

· Industrial factory floorings.

· Concreting the foundation.

· Swimming pools.

· Waterproofing and rehabilitation.

Global Recycling is one of the topmost rice husk ash manufacturers & suppliers of India. We offer rice hull ash, rice husk ash. We are one of the most reliable and well-known manufacturers of the high-grade Heat insulation compound and ladle covering compounds too. Our products are made of high-quality raw materials. This is the reason why our products contain high insulating power, spread ability, and expandability. Products provided by us spreads quickly and easily to cover the whole surface of the steel. Rice husk has lots of utilities as a tundish covering compound

Source - https://www.matec-conferences.org/