Abstract
A number of rubber cement concrete specimens that rubber powder dosage different were obtained using same cement, water and fine aggregates, by adjusting the dosage of rubber powder. Then it was used to research the influence of rubber powder dosage on performance of cement concrete by measuring its liquidity, strength and toughness. The results show that: when water-cement ratio was equal and rubber powder replacing the same volume sand, the fluidity of cement concrete almost linear increased with rubber powder dosage increasing. With dosage of rubber powder increasing, compressive strength and flexural strength reduced, but toughness linear growth trend when dosage of rubber powder less 30%.
Highlights
Waste rubber powder was a renewable resource
The workability and liquidity testing results of cement concrete mixed with different rubber powder dosage was shown in Figure 1 and Figure 2
As can be seen from the Figures, when cement ratio was same, workability of the cement concrete linearly increased with rubber powder dosage increased
Summary
Waste rubber powder was a renewable resource. It was widely used in road construction technology at home and abroad, improved road performance and significantly reduced noise, prolong its life [1]- [3].scholars in domestic and foreign do more research on rubber powder cement concrete or concrete [4]-[7]. Waste rubber powder was a renewable resource. It was widely used in road construction technology at home and abroad, improved road performance and significantly reduced noise, prolong its life [1]- [3]. Scholars in domestic and foreign do more research on rubber powder cement concrete or concrete [4]-[7]. Most of researchers replaced rubber particles with coarse aggregate, and researched the properties of rubber concrete [5]-[18]. Study on rubber powder cement concrete that replaced rubber powder with fine aggregate was less. This paper obtained a number of rubber cement dosage specimens that rubber powder dosage different to study effect of rubber powder ash on cement concrete fluidity, strength and toughness
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