DURABILITY PROPERTIES OF CONCRETE PRODUCED BY USING RHA AND WMP FIBRES

Abstract

Growing urbanization around the world is leading to increased consumption of concrete, which poses serious environmental problems. The cement industry has very serious environmental issues and causes various sustainability issues; Carbon dioxide is a greenhouse gas that has many negative effects on the environment. An effective way to overcome this negative impact that the cement industry has on the environment is to use another material instead of cement in concrete. In this study, the aim is to use the rice husk ash produced from rice husk waste in large shredders in large quantities, and its disposal is also a major challenge for society and the environment. Rice husk ash is collected from tillers and converted to ash by manual combustion in barrels and used in the laboratory for research work. The cement in the concrete is partially replaced by rice husk ash, which also greatly reduces the consumption of cement and also utilizes the metal-plastic fiber waste in the concrete, as it is a non-biodegradable waste. Okay. To reduce non-biodegradable waste (WMP) used in concrete. The purpose of this study was to partially replace cement in concrete with RHA and WMP and study the durability of mixed concrete and verify the variability of the results of ashless concrete samples and fiber. To achieve this, the cement is replaced by rice husk ash with three different variants i.e. 10%, 20% and 30% and three different variations of WMP fibres, i.e. - 0.5% , 0.75%, 1% and various endurance tests. conducted. including accelerated carbonation test, abrasion resistance test and chloride penetration test. The results show that it can be safe to replace the cement up to 20% with rice husk ash and fiber taking into account the carbonation test. However, results obtained from chloride penetration test and abrasion resistance test show that rice husk ash can be used as a cement substitute up to 20%; beyond this limit, these results gave a slightly negative answer. Therefore, considering three tests, it is concluded that concrete mixed with rice husk ash replacing 20% is durable enough compared to normal concrete. Key Words : Durability, RHA, WMP fibre, RCPT, Carbonation, Silver Nitrate (AgNO3), Concrete