Evaluation of Recycled Products from Worn Tires Effect on the Mechanical Properties of Concrete Pavement

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ZAREI ALI; HASSANI ABOLFAZL

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Journal: Modares Civil Engineering journal Year:2018 | Volume:18 | Issue:6 Page(s): 143-153

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Information Journal Paper

Title

Evaluation of Recycled Products from Worn Tires Effect on the Mechanical Properties of Concrete Pavement

Author(s)

ZAREI ALI | HASSANI ABOLFAZL | Issue Writer Certificate

Keywords

worn tireQ1

compressive strengthQ1

indirect tensile strengthQ2

concrete pavementQ2

recyclingQ2

Abstract

By increasing the use of vehicles today, a large number of tires are produced daily, and on the other hand, the number of worn tires has risen and, given the fact that they are not environmentally friendly, and their recycling is not economical, the worn tires are observed in different parts of the earth in a sporadic or massive manner, this issue causing many environmental problems, including a potential fire hazard, a place for the accumulation and cultivation of insects and rodent organisms such as rats. One of the solutions used to remove worn tires is burning, that cause produce toxic gases and air pollution, and the black powder resulting from the burning of tires causes pollution of surface water and soils. In some cases worn tires are used to produce carbon black, which has a lower quality and higher cost than carbon produced from crumb rubber, therefore, it is necessary to find solutions for the use of recycled materials from tires, on the other hand, by increasing the use of concrete structures, including concrete pavement and use of this pavement in many new pavements, and noting that the primary sources of concrete production, including sand, are limited and exhausted, the need to use alternatives for these materials in concrete pavements is becoming increasingly important. So in this research to resolve the problems, the combination of rubber and recycled steel fibers from worn tires is used in concrete pavements, also it should be noted that the composition of the crumb rubber consists of rubbers with three different granules and crumb powder that made from a recycling factory for worn tires, and then the mechanical properties of the concrete made from the replacement of these materials, has been evaluated. In this research, 0, 5, 10, 15 and 20 percent of crumb rubber mix was used as a fine grained substitute for concrete pavement. Also, in another state, half percent of the steel fibers recovered from worn tires were added to these samples. The results of this study indicate that the compressive strength of samples with 5, 10, 15 and 20% crumb rubber in comparison with the control sample was reduced by 1. 6, 36. 9, 49. 9% and 63. 1%, and samples with 0, 5, 10, 15 and 20% crumb rubber and 0. 5% steel fibers, respectively, decreased by 0. 3, 11. 2, 33. 7, 5 / 41% and 44. 3% respectively. Therefore, it is observed that the compressive strength of concrete containing crumb rubber and steel fibers is better than specimens with crumb rubber. Also, by replacing 5%, 10%, 15% and 20% of crumb rubber in concrete, its indirect tensile strength would be reduced by 7. 5%, 15. 3%, 41. 4% and 31. 2%, and by adding 0. 5% of the steel fibers to the concrete by replacing 0, 5, 10, 15 and 20% of crumb rubber in concrete, indirect tensile strength increased by 67. 8%, 46. 7%, 32. 4%, 17. 8% and 3. 5%, respectively, and it is concluded that the tensile strength of concrete increases due to the addition of steel fibers. Due to the increase in the amount of petroleum residue replacement.

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APA: Copy

ZAREI, ALI, & HASSANI, ABOLFAZL. (2018). Evaluation of Recycled Products from Worn Tires Effect on the Mechanical Properties of Concrete Pavement. MODARES CIVIL ENGINEERING JOURNAL, 18(6 ), 143-153. SID. https://sid.ir/paper/365527/en

Vancouver: Copy

ZAREI ALI, HASSANI ABOLFAZL. Evaluation of Recycled Products from Worn Tires Effect on the Mechanical Properties of Concrete Pavement. MODARES CIVIL ENGINEERING JOURNAL[Internet]. 2018;18(6 ):143-153. Available from: https://sid.ir/paper/365527/en

IEEE: Copy

ALI ZAREI, and ABOLFAZL HASSANI, “Evaluation of Recycled Products from Worn Tires Effect on the Mechanical Properties of Concrete Pavement,” MODARES CIVIL ENGINEERING JOURNAL, vol. 18, no. 6 , pp. 143–153, 2018, [Online]. Available: https://sid.ir/paper/365527/en

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