Physical and mechanical performance of concrete made with waste rubber aggregate, glass powder and silica sand powder

Abstract

This study presents experimental results about the effect of incorporating waste rubber aggregates in combination with waste glass powder or silica sand powder obtained from dune natural sand, on the performances of cementitious mixtures. Rubber aggregates (RW) were used to replace crushed sand in concrete mixes with ratios of 10%, 20%, 40% and 60%, while glass powder (GP) and natural sand powder (SP) were used to replace 15% of the cement weight. Nine different forms of concrete with the separate wastes and with the combination of them were designed and prepared. The mixtures were characterized in the fresh and hardened states by means of workability, fresh density, compressive and tensile strengths, propagation of ultrasonic waves and deformability tests. The water/binder ratio and superplasticizer percentage of all mixtures were maintained constant. The results showed that the strength increased with the incorporation of glass powder and rubber aggregates, especially with 10% and 20% RW contents. In addition, the developed rubberized concrete with the incorporation of glass powder presented higher fresh density and deformability, compared to the cementitious rubberized mixtures without GP. Furthermore, the simultaneous incorporation of rubber waste and glass powder enhanced the concretes workability due to the low GP and RW water absorptions. Recently, researchers worldwide up the challenge to assess the usability of this industrial waste in cementitious materials, however, their performance has to be defined. The most recent studies related to the use of rubber aggregates and chips obtained from the used tires milling as a partial replacement of fine and coarse aggregates should be highlighted [9-24]. Blessen et al. [9] studied the properties of high strength rubberized concrete that contains scrap tire rubber. Crumb rubber was used to replace natural fine aggregate from 0% to 20% in multiples of 2.5%. It was observed a significant improvement on the abrasion resistance and water absorption properties, while mechanical and durability of high strength rubberized concrete were observed to be less than that of the control mix. Similarly, Ganjian et al. [10] tested the effect of replacing coarse aggregates by chipped tire and cement by powder tire crumb. Based on the results, they obtained a reduction in compressive strength about 10-23% and 20-40% for replacing natural aggregates and cement with chipped rubber, powder rubber respectively. In addition, Aslani et al. [11] practiced the replacement of

Overview of trends in the application of waste materials in self-compacting concrete production

“…Crumb rubbers are mostly used as partial replacement of fine aggregate, while threaded rubbers are mostly used as a replacement of coarse aggregate [63,64]. The inclusion of rubber waste and glass powder increased strength properties of concrete, and at the same time, workability of the concrete was improved because of lesser water absorption nature of rubber waste and glass powder [65]. A correlation between RW and strength reduction in CC is presented in Fig.…”

Effect of Waste Glass Addition as a Replacement for Fine Aggregate on Properties of Mortar

“…However, glass can be regarded as the most suitable as a sand and cement substation, due to its chemical composition and physical properties [ 17 , 18 , 19 ]. Glass powder as a cement replacement was investigated by many scientists [ 20 , 21 , 22 ]. Federico and Chidiac [ 23 ] studied the impact of glass cullet that was ground to a powder form for selected properties of cement mixes.…”

Flexural fatigue behaviour of recycled tyre polymer fibre reinforced concrete

“…The results here are in consistence with the previous research[35] that the compressive strength of concrete reduced with the presence of RTPF. Besides, the increasing amount of crumb rubber inside the mixture contributes to the reduction of compressive strength[47,[52][53][54][55] (seeFig.…”