Flexural fatigue behavior of polymer-modified pervious concrete with single sized aggregates. (15th October 2016)

• Record Type: Journal Article
• Authors: Zhou, Juanlan; Zheng, Mulian; Wang, Qi; Yang, Jiangang; Lin, Tianfa
• Is Part Of: Construction & building materials. Volume 124(2016)
• Page Start: 897
• Page End: 905
• Publication Date: 2016-10-15
• Subjects: Pervious concrete -- Single sized aggregate -- Fatigue -- Flexural -- Weibull distribution; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2016.07.136
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: The probabilistic distribution of equivalent fatigue life for PPC was proposed. The coefficients of fatigue equation have been determined for PPC. The fatigue life in descending order is PPC-27.5, PPC-32.5, and PPC-37.5. Abstract: The objective of this research is to evaluate the flexural fatigue behavior of polymer-modified pervious concrete (PPC) with single sized aggregates which could be used in base course of infrastructures. Three aggregate sizes (27.5 mm, 32.5 mm, and 37.5 mm) were selected for single sized aggregate mixtures. A laboratory testing program was conducted obtaining the fatigue lives of PPC at various stress levels and stress ratios. 65 beam specimens of 150 mm × 150 mm × 550 mm totally were produced for each mix type, ten of which were adopted to determine the static flexural strength of PPC prior to fatigue testing. To incorporate the effects of stress level S, stress ratio R and survival probability, equivalent fatigue-life was employed to study the fatigue equation of PPC. The studies indicate that statistical distribution of equivalent fatigue life of PPC approximately followed the two-parameter Weibull distribution. The S - N relation curves and regression equations corresponding to different survival probabilities (0.5–0.95) were obtained by regression analysis. Based on these results, the fatigue life ranking as PPC-27.5 > PPC-32.5 > PPC-37.5 was declared.