含纤维高粘沥青砂粘弹性特性的研究
|
摘要
为了研究含纤维高粘沥青砂的粘弹性特性,对含有木质素纤维和玄武岩纤维的两种高粘沥青砂试件在不同温度下进行小梁弯曲蠕变试验。分析和比较蠕变挠度曲线和劲度模量曲线得到加入玄武岩纤维的沥青砂性能更加稳定;利用时温等效理论得到松弛模量主曲线,使用origin8软件进行拟合,标定出广义的Maxwell模型的Prony级数形式的参数,相关系数达到0.98。拟合效果良好,可为数值模拟提供参数,从而能为工程实践提供参考依据。
In order to study the viscoelasticity for the fibrous high viscoelastic asphalt sand. Two kinds of fiber which are lignin fiber,basalt fiber are selected to put into the high viscoelastic asphalt for the trabecular bending creep test. The performance of the asphalt sand which contains basalt fiber is more s Table by analyzing and comparing the creep deflection curve and the stiffness modulus. Relaxation modulus master curve is obtained by using the theory of temperature-time equivalence. The generalized Maxwell model parameters in the form of prony series is calibrated by fitting the relaxation modulus master curve with origin 8 software,and the correlation coefficient is 0. 98. The fitting results can be used as the parameters of the numerical simulation,and providing reference for engineering practice.
In order to study the viscoelasticity for the fibrous high viscoelastic asphalt sand. Two kinds of fiber which are lignin fiber,basalt fiber are selected to put into the high viscoelastic asphalt for the trabecular bending creep test. The performance of the asphalt sand which contains basalt fiber is more s Table by analyzing and comparing the creep deflection curve and the stiffness modulus. Relaxation modulus master curve is obtained by using the theory of temperature-time equivalence. The generalized Maxwell model parameters in the form of prony series is calibrated by fitting the relaxation modulus master curve with origin 8 software,and the correlation coefficient is 0. 98. The fitting results can be used as the parameters of the numerical simulation,and providing reference for engineering practice.
引文
[1]王金昌.高粘弹沥青砂在市政道路中的应用研究报告[R].杭州:浙江大学,2014.
[2]LEESJ,RUST JP,HAMOUDA H,et al.Fatigue cracking resistance of fiber-reinforced cold asphalt mixes[J].Journal of Environmental Engineering,2003,129(10):387-409.
[3]Chen J S,Lin K Y.Mechanism and behavior of bitumen strength reinforcement using fibers[J].Journal,2005,75(2):123-128.
[4]郭乃胜,赵颖华,孙略伦.纤维沥青混泥土的蠕变特性试验研究[J].中外公路,2007,27(2):124-127.
[5]张丰状.不同种类纤维沥青路面高温性能的蠕变试验研究[J].北方交通,2013(1):20-23.
[6]张争奇,胡长顺.纤维加强沥青混泥土几个问题的研究和探讨[J].西安公路交通大学学报,2001,21(1):29-32.
[7]高丹盈,黄春水,汤寄予.纤维沥青混合料最佳纤维掺量试验研究[J].公路,2009,2(2):141-145.
[8]JTG E20-2011,公路工程沥青及沥青混合料试验规程[S].
[9]郑健龙,周志刚,张起森.沥青路面抗裂设计理论与方法[M].北京:人民交通出版社,2002.
[10]张肖宁.沥青与沥青混合料的粘弹力学原理及应用[M].北京:人民交通出版社,2006.
[2]LEESJ,RUST JP,HAMOUDA H,et al.Fatigue cracking resistance of fiber-reinforced cold asphalt mixes[J].Journal of Environmental Engineering,2003,129(10):387-409.
[3]Chen J S,Lin K Y.Mechanism and behavior of bitumen strength reinforcement using fibers[J].Journal,2005,75(2):123-128.
[4]郭乃胜,赵颖华,孙略伦.纤维沥青混泥土的蠕变特性试验研究[J].中外公路,2007,27(2):124-127.
[5]张丰状.不同种类纤维沥青路面高温性能的蠕变试验研究[J].北方交通,2013(1):20-23.
[6]张争奇,胡长顺.纤维加强沥青混泥土几个问题的研究和探讨[J].西安公路交通大学学报,2001,21(1):29-32.
[7]高丹盈,黄春水,汤寄予.纤维沥青混合料最佳纤维掺量试验研究[J].公路,2009,2(2):141-145.
[8]JTG E20-2011,公路工程沥青及沥青混合料试验规程[S].
[9]郑健龙,周志刚,张起森.沥青路面抗裂设计理论与方法[M].北京:人民交通出版社,2002.
[10]张肖宁.沥青与沥青混合料的粘弹力学原理及应用[M].北京:人民交通出版社,2006.