Investigation conducted by hasparyk et al.
Replacement of cement in concrete with rice husk ash.
Cement replacement with rice husk ash were done in proportions of 10 20 30 40 and 50 in volume of concrete.
A series of unconfined compression tests on cement rha stabilized clay are conducted to investigate the influence of rha on the mixture properties.
The potential and efficiency of using rice husk ash rha to add up or partially replace portland cement in deep cement mixing technique are examined.
This study attempts to make an evidence based evaluation of the sustainability and benefits of rha.
Rice husk ash rha has been found as a potential partial replacement for cement in concrete.
Special attention is paid to its efficiency for increasing the strength by partial cement.
Applications of rice husk ash.
With this research work the problem of waste management of this agro waste.
Various strength parameters like compressive strength flexural strength and water absorption were determined.
Weight of concrete blocks is considerably reduced with increase in the amount of rice husk ash.
The rice husk ashes in the concrete react with the calcium hydroxide to bring more hydration products.
The rice husk ash is a green supplementary material that has applications in small to large scale.
Rice husk ash as a pozzolanic reactive material can be used to improve surface area of transition zone between the microscopic structure of cement paste and aggregate in the high performance concrete.
This is because rice husk ash contains 85 to 95 weight percent of amorphous silica.
Abstract this research work was experimentally carried out to investigate the effects of partially replacing ordinary portland cement opc with our local additive rice husk ash rha which is known to be super pozzolanic in concrete at optimum replacement percentage.
The consumption of calcium hydroxide will enable lesser reactivity of chemicals from the external environment.