EFFECT OF SURFACE TREATMENT OF RUBBER ON THE PROPERTIES OF RUBBER BASED CONCRETE
Keywords:
Artificial aggregates, hydrophilicity, landfill, light weight concrete, .non biodegradable waste, rubbercrete, Scrap tyre rubber, surface treatment of rubber.Abstract
This paper presents the effect of surface treatments of tyre rubber on the properties of rubber based concrete. Two types of surface treatments were given to the waste rubber. The rubber chips were treated with sodium hydroxide solution and cement paste to improve the adhesion of rubber aggregates with the concrete matrix. Slump test, Compressive strength, Flexural strength & Split tensile strength tests were performed at time intervals of up to 28 days. The results showed a decrease in the mechanical strength of concrete after the addition of shredded rubber (as partial replacement of coarse aggregates) without treatment as well as a decrease of workability. It was also observed that among two surface treatments the treatment with Sodium hydroxide solution caused an increase in the mechanical strength of the rubber based concrete.
