1、中文中文 44574457 字字 外文参考资料外文参考资料 Mechanical properties of pervious cement concrete CHEN Yu1, WANG Ke-Jin2, LIANG Di1 1. School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha 410004, China; 2.Department of Civil, Construction and Environmental Engineer
2、ing, Iowa State University, Ames, IA50010, USA Central South University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: Compressive and flexural strength, fracture energy, as well as fatigue property of pervious cement concrete with either supplementary cementitious materials (SCMs) or po
3、lymer intensified, were analyzed. Test results show that the strength development of SCM-modified pervious concrete (SPC) differs from that of polymer-intensified pervious concrete (PPC), and porosity has little effect on their strength growth. PPC has higher flexural strength and remarkably higher
4、flexural-to-compressive strength ratio than SPC at the same porosity level. Results from fracture test of pervious concrete mixes with porosity around 19.5% show that the fracture energy increases with increasing the dosage of polymer, reflecting the ductile damage features rather than brittleness. PPC displays far longer fatigue life than SPC for any given failure probability and at any stress level. It is proved that two-parameter Weibull probability function describes the flexural fatigu
