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Effect of Crumb Rubber Powder on the Pavement Performance of Cement Concrete
For the problem what particle size and dosage of crumb rubber powder is best for road concrete, 24 groups of rubber powder concrete were prepared using four kinds of particle size (60, 80, 100 and 120 meshes) and 6 kinds of dosage (0%, 10%, 15%, 20%, 25% and 30%). And its pavement performance was measured, such as, strength, toughness, crack resistance, frost resistance and permeability. The results showed that: strength of crumb rubber powder concrete decreased with dosage and fineness degree of rubber powder increasing, and it had a higher sensitivity for dosage. Add crumb rubber powder into concrete has a positive effect to improve toughness, crack resistance and permeability of concrete, and the effect can be more obvious when the dosage increasing. However, the ability of frost resistance increased at first, and then decreased when the dosage increasing. The optimum dosage for 60, 80, 100 and 120 meshes rubber powder was 15%.
Effect of Crumb Rubber Powder on the Pavement Performance of Cement Concrete
For the problem what particle size and dosage of crumb rubber powder is best for road concrete, 24 groups of rubber powder concrete were prepared using four kinds of particle size (60, 80, 100 and 120 meshes) and 6 kinds of dosage (0%, 10%, 15%, 20%, 25% and 30%). And its pavement performance was measured, such as, strength, toughness, crack resistance, frost resistance and permeability. The results showed that: strength of crumb rubber powder concrete decreased with dosage and fineness degree of rubber powder increasing, and it had a higher sensitivity for dosage. Add crumb rubber powder into concrete has a positive effect to improve toughness, crack resistance and permeability of concrete, and the effect can be more obvious when the dosage increasing. However, the ability of frost resistance increased at first, and then decreased when the dosage increasing. The optimum dosage for 60, 80, 100 and 120 meshes rubber powder was 15%.
Effect of Crumb Rubber Powder on the Pavement Performance of Cement Concrete
Zhang, Yancong (author) / Gao, Lingling (author)
Fifth International Conference on Transportation Engineering ; 2015 ; Dailan, China
ICTE 2015 ; 1253-1258
2015-09-25
Conference paper
Electronic Resource
English
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