A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fracture Performance of Asphalt Mixture with Styrene Butadiene Styrene Based on the J-Integral
Crack of asphalt pavement is one of the major destruction in pavement engineering. The bending test of small beam at low-temperature is often applied to evaluate the resisting crack for asphalt mixture. In this paper, based on J-integral theory in elastic-plastic fracture mechanics, performance of resisting crack of asphalt mixtures is analyzed in cases of different temperatures and contents of Styrene Butadiene Styrene (SBS) by bending tests of small beam. It is shown that the optimal condition for anti-cracking of asphalt mixtures is SBS contents of 4.2%∼5.0% at 10 °C using flexural tensile strain and stiffness modulus and the highest flexural tensile strengths of mixture occur at 0 °C. Ductile fracture toughness of mixture with SBS modifier may be more sensitive to temperature from -10 °C to 0 °C and may be more useful to analysis elastic-plastic formation energy and energy releasing rate of asphalt mixture.
Fracture Performance of Asphalt Mixture with Styrene Butadiene Styrene Based on the J-Integral
Crack of asphalt pavement is one of the major destruction in pavement engineering. The bending test of small beam at low-temperature is often applied to evaluate the resisting crack for asphalt mixture. In this paper, based on J-integral theory in elastic-plastic fracture mechanics, performance of resisting crack of asphalt mixtures is analyzed in cases of different temperatures and contents of Styrene Butadiene Styrene (SBS) by bending tests of small beam. It is shown that the optimal condition for anti-cracking of asphalt mixtures is SBS contents of 4.2%∼5.0% at 10 °C using flexural tensile strain and stiffness modulus and the highest flexural tensile strengths of mixture occur at 0 °C. Ductile fracture toughness of mixture with SBS modifier may be more sensitive to temperature from -10 °C to 0 °C and may be more useful to analysis elastic-plastic formation energy and energy releasing rate of asphalt mixture.
Fracture Performance of Asphalt Mixture with Styrene Butadiene Styrene Based on the J-Integral
Li, Ping (author) / Pei, Jun-Jun (author) / Yao, Yu (author) / Sun, Guo-Wei (author)
2013
6 Seiten
Conference paper
English
Fracture Performance of Asphalt Mixture with Styrene Butadiene Styrene Based on the J-Integral
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