Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 359, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2022.129477
Keywords
ECC; Impact behaviors; Rubber crumb; Aggregate; Temperature
Categories
Funding
- Systematic project of Guangxi key laboratory of disaster prevention and structural safety [2019ZDK025]
- Innovation Project of Guangxi Graduate Education [YCBZ2022026]
- Bagui Scholars Special Funding Project [2019-79]
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With the development of modern transportation, the recycling and reusing of waste tires have become a global concern. This study aimed to develop impact-resistant engineered cementitious composites (ECC) using waste tire rubber as aggregate. The mechanical behaviors of rubber-modified ECC were investigated, and the impact tests were conducted under different environmental temperatures and impact heights. The results showed that rubber-modified ECC is more suitable as impact-resistant material in cold regions.
With the development of modern transportation, the recycling and reusing of waste tires have gradually become a global concern. This paper was indented to develop impact-resistant engineered cementitious composites (ECC) with the application of waste tire rubber as the aggregate. The local PVA fibers, as well as the rubber crumb derived from waste tire with the replacement ratio up to 40 %, were applied to make ECCs. The basic mechanical behaviors of rubber-modified ECC were first investigated with uniaxial compressive and tensile tests. The impact tests of rubber-modified ECC were further conducted under different environmental temperatures ranging from -50 degrees C to 150 degrees C, as well as different impact heights from 100 mm to 500 mm. It was concluded that the rubbermodified ECCs are more suitable to be applied as impact-resistant material in cold regions, as the rubbermodified ECC has higher energy dissipation capacity than normal ECC, especially under cold temperatures.
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