东南大学学报（英文版）2016，Vol.32Issue(4)：472-478,7.DOI:10.3969/j.issn.1003-7985.2016.04.013
单轴受压下玄武岩纤维沥青砂浆流变性能试验及仿真
Experiment and simulation of creep performance of basalt fibre asphalt mortar under uniaxial compressive loadings
摘要
Abstract
The creep performance of basalt fibre ( BF ) reinforced in asphalt mortar under uniaxial compressive loadings is investigated. The samples of basalt fibre asphalt mortar ( BFAM ) with different BF mass fractions ( 0. 1%, 0. 2%, and 0. 5%) and without BF in asphalt mixture are prepared, and then submitted for the compressive strength test and corresponding creep test at a high in-service temperature. Besides, numerical simulations in finite element ABAQUS software were conducted to model the compressive creep test of mortar materials, where the internal structure of the fibre mortar was assumed to be a two-component composite material model such as fibre and mortar matrix. Finally, the influence factors of rheological behaviors of BFAM are further analyzed. Results indicate that compared to the control sample, the compressive strength of BFAM samples has a significant increase, and the creep and residual deformation are decreased. However, it also shows that the excessive fibre, i. e. with the BF content of 0. 5%, is unfavorable to the high-temperature stability of the mortar. Based on the analysis results, the prediction equations of parameters of the Burgers constitutive model for BFAM are proposed by considering the fibre factors.关键词
玄武岩纤维/沥青砂浆/单轴受压/流变性能Key words
basalt fibre/asphalt mortar/uniaxial compressive/creep performance分类
交通工程引用本文复制引用
张小元,顾兴宇,吕俊秀,朱宗凯..单轴受压下玄武岩纤维沥青砂浆流变性能试验及仿真[J].东南大学学报（英文版）,2016,32(4):472-478,7.基金项目
The National Natural Science Foundation of China ( No.51108082) （ No.51108082）
