Research Paper
Effects of fly ash on the properties of self-compacting concrete
Worldwide, Concrete is one of the most popular construction materials, because its raw material can be easily available at different places around the world. These facts have not only led to many inventions in the field of concrete but have also led to many studies in order to improve its quality, reducing the cost of implementation, and make the concrete friendly with the environment. The problem with the accepted compaction of concrete and durability are the main subjects under consideration. To achieve both of these skilled labor and advances equipment are required. currently, It seems to be the lack of the numbers of skilled workers for the construction industry is the main reason for a decrease in the quality of construction work. One solution for the achievement of durable concrete structures is the use of self-compacting concrete, which can be compacted into every corner of a formwork, completely by means of its own weight and without the need for vibrating compaction. This means that it can be gained sustainable concrete structures and acceptable compaction by using the minimum number of workers and equipment. Moreover, the use of SCC is also implemented to provide economic, social, and environmental benefits over conventional vibrated concrete construction. Fly ash is the mineral admixtures means pozzolanic material. Pozzolanic materials are siliceous or siliceous and aluminous material, chemically reacts with calcium hydroxide liberated on hydration process at ordinary temperature to form compounds possessing cementitious properties. Fly ash is the most widely used pozzolanic material all over the world. Fly ash is a finely divided residue resulting from the combustion of powdered coal. The new Indian Standard on concrete mix proportions (IS 10262-2009) is already incorporated fly ash as supplementary material to cement, by replacing cement with a material of pozzolanic characteristics such as fly ash. It is used to partially replace Portland cement up to 60% by mass. Fly ash is waste from generated power plants. One of the practical solutions to economize cement is to replace cement with supplementary cementitious materials like fly ash. The use of fly ash as concrete admixtures not only extends technical advantages to the properties of concrete but also contributes to environmental pollution control. India is a resourceful country for fly ash generation with an annual output of over 110 million tonnes, but utilization is still below 20% in spite of the quantum jump in the last 3-4 years.
Published by: Ankit Rameshrao Ghodile, Mayur Banarase
Author: Ankit Rameshrao Ghodile
Paper ID: V7I2-1348
Paper Status: published
Published: April 26, 2021
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