Abstract
In terms of recycling and reuse, today's global generation of waste tire well exceeds its consumption. This has resulted in the accumulation of large stocks of toxic rubber waste that raise health and safety risks. The use of waste tire rubber for the construction of the concrete structure was suggested to combat this challenge. This paper explores tests that were performed with samples of waste tire rubber concrete to evaluate compressive strength, flexural tensile strength, modulus of rupture, and impacts resistance. The main parameters investigated were the rubber ratio as a partial volumetric replacement with fine and coarse aggregate. Chip and crumb rubbers were used to replace coarse and fine aggregate respectively in four different amounts by volume (5%, 10%, 15%, and 20%). Even if the inclusion of waste tire rubber in concrete has specific apparent degradations, the potential benefit seems to overlook the adverse effects and also meet the primary significant value of resolution for rubber waste utilization problems. The results show that the substitution of natural fine or coarse aggregates with crump-chip tier rubber will reduce mechanical properties (compressive, flexural and splitting tensile strength), but increase the impacts resistance to 426% and 396% when 20% coarse aggregates and 20% fine aggregates are replaced by rubber respectively. The proposed mix shows an ability to replace 20% of the aggregate (coarse or fine), and the producing, rubcrete, still structural concrete.
Highlights
Coarse Aggregates (CA) and Fine Aggregates (FA) are one of the primary materials used in concrete manufacturing, but the continuous use of these materials may be scarce
The results showed that compressive strength values decreased by about 10% and 23% when compared to the control mix with mixes have rubber replacement by 7 % and 9 %
The concrete slump value increased by about 1.08 percent, with the crumb rubber substitute of 10 percent, as well as the results showed the splitting tensile strength, compressive strength, and concrete modulus of rupture reduced by about 37 %, 49 %, and 41 %at this replacement ratio [4]
Summary
Coarse Aggregates (CA) and Fine Aggregates (FA) are one of the primary materials used in concrete manufacturing, but the continuous use of these materials may be scarce. Eldin and Senouci studied the effect of using crumb and chip rubber as full sand and coarse aggregate replacement He found that concrete containing a higher proportion of graded rubber has high toughness, but compressive strength,. Najib N. et al replaced partial volume of sand by (5%, 10%, 15%and 20%) for different references mixes vary in compressive strength range from 30 MPa to 50 MPa by rubber and check the influence of the replacement on concrete mix result show reduction in the density, decreasing in the rubcrete strength and gave a negative effect on the modulus of elasticity [6]. Chip and crumb rubber was used to replace coarse and fine aggregate in four different proportion by volume (0- 20) %, and check their effects on the mechanical properties of the concrete mix
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
