The number of waste tires is increasing in recent decades. Landfilling and incineration are not only consuming the land resources, but also severely endangered the ecological environment and human health. Therefore, how to recycle waste tires effectively becomes an urgent issue. Certain researches have established that crushing waste tire into powders and adding them in concrete mixer can improve the brittleness and durability of concrete materials. In this paper, the workability, mechanical properties and durability of concrete with rubber crumbs (RCC) were studied. Fine aggregate (FA) was replaced by rubber crumbs of 6 particle sizes, the usage equaled the 10% volume of the FA. The microstructure and pore structure of RCC are analyzed by SEM and MIP. The test results revealed: (1) Due to the difference of air entrainment and absorption, rubber crumb with different particle sizes has different effects on the workability of concrete mixture; (2) The addition of rubber crumbs reduced the strength of concrete, but the relationship between strength and particle size was not monotonous. The compressive strength of RCC decreased at first, then increased with the increase of particle size; (3) The air entraining effect of rubber powder can improve the frost resistance of concrete; (4) The changes of micro morphology and pore structure led to the modification of performances of RCC.
Published in | American Journal of Civil Engineering (Volume 10, Issue 3) |
DOI | 10.11648/j.ajce.20221003.11 |
Page(s) | 79-87 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2022. Published by Science Publishing Group |
Rubber Crumb, Concrete, Durability, Mechanical Property, Pore Structure
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APA Style
Yang He, Fei Xu, Hua Wei. (2022). Effect of Particle Size on Properties of Concrete with Rubber Crumbs. American Journal of Civil Engineering, 10(3), 79-87. https://doi.org/10.11648/j.ajce.20221003.11
ACS Style
Yang He; Fei Xu; Hua Wei. Effect of Particle Size on Properties of Concrete with Rubber Crumbs. Am. J. Civ. Eng. 2022, 10(3), 79-87. doi: 10.11648/j.ajce.20221003.11
@article{10.11648/j.ajce.20221003.11, author = {Yang He and Fei Xu and Hua Wei}, title = {Effect of Particle Size on Properties of Concrete with Rubber Crumbs}, journal = {American Journal of Civil Engineering}, volume = {10}, number = {3}, pages = {79-87}, doi = {10.11648/j.ajce.20221003.11}, url = {https://doi.org/10.11648/j.ajce.20221003.11}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20221003.11}, abstract = {The number of waste tires is increasing in recent decades. Landfilling and incineration are not only consuming the land resources, but also severely endangered the ecological environment and human health. Therefore, how to recycle waste tires effectively becomes an urgent issue. Certain researches have established that crushing waste tire into powders and adding them in concrete mixer can improve the brittleness and durability of concrete materials. In this paper, the workability, mechanical properties and durability of concrete with rubber crumbs (RCC) were studied. Fine aggregate (FA) was replaced by rubber crumbs of 6 particle sizes, the usage equaled the 10% volume of the FA. The microstructure and pore structure of RCC are analyzed by SEM and MIP. The test results revealed: (1) Due to the difference of air entrainment and absorption, rubber crumb with different particle sizes has different effects on the workability of concrete mixture; (2) The addition of rubber crumbs reduced the strength of concrete, but the relationship between strength and particle size was not monotonous. The compressive strength of RCC decreased at first, then increased with the increase of particle size; (3) The air entraining effect of rubber powder can improve the frost resistance of concrete; (4) The changes of micro morphology and pore structure led to the modification of performances of RCC.}, year = {2022} }
TY - JOUR T1 - Effect of Particle Size on Properties of Concrete with Rubber Crumbs AU - Yang He AU - Fei Xu AU - Hua Wei Y1 - 2022/05/19 PY - 2022 N1 - https://doi.org/10.11648/j.ajce.20221003.11 DO - 10.11648/j.ajce.20221003.11 T2 - American Journal of Civil Engineering JF - American Journal of Civil Engineering JO - American Journal of Civil Engineering SP - 79 EP - 87 PB - Science Publishing Group SN - 2330-8737 UR - https://doi.org/10.11648/j.ajce.20221003.11 AB - The number of waste tires is increasing in recent decades. Landfilling and incineration are not only consuming the land resources, but also severely endangered the ecological environment and human health. Therefore, how to recycle waste tires effectively becomes an urgent issue. Certain researches have established that crushing waste tire into powders and adding them in concrete mixer can improve the brittleness and durability of concrete materials. In this paper, the workability, mechanical properties and durability of concrete with rubber crumbs (RCC) were studied. Fine aggregate (FA) was replaced by rubber crumbs of 6 particle sizes, the usage equaled the 10% volume of the FA. The microstructure and pore structure of RCC are analyzed by SEM and MIP. The test results revealed: (1) Due to the difference of air entrainment and absorption, rubber crumb with different particle sizes has different effects on the workability of concrete mixture; (2) The addition of rubber crumbs reduced the strength of concrete, but the relationship between strength and particle size was not monotonous. The compressive strength of RCC decreased at first, then increased with the increase of particle size; (3) The air entraining effect of rubber powder can improve the frost resistance of concrete; (4) The changes of micro morphology and pore structure led to the modification of performances of RCC. VL - 10 IS - 3 ER -