Enhanced flexural performance of epoxy polymer concrete with short natural fibers

doi:10.1007/s11431-017-9272-4

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Enhanced flexural performance of epoxy polymer concrete with short natural fibers
	Hu B ; Zhang NL ; Liao YT ; Pan ZW ; Liu YP ; Zhou LC ; Liu ZJ ; Jiang ZY
刊名	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
	2018-08-01
卷号	61 期号:8 页码:1107-1113
关键词	epoxy polymer concrete (EPC) natural fibers flexural strength micromechanics models
ISSN号	1674-7321
DOI	10.1007/s11431-017-9272-4
英文摘要	Epoxy polymer concrete (EPC) has found various applications in civil engineering. To enhance the flexural performance of EPC, two kinds of short natural fibers with high specific strength (sisal fibers and ramie fibers) have been incorporated into EPC. The results of mechanical tests show that a small loading of natural fibers (0.36 vol%) can significantly increase the flexural strength of EPC by 25.3% (ramie fibers) or 10.4% (sisal fibers). This enhancement is achieved without any sacrifice of compressive strength of EPC. The reinforcing effects of short natural fibers on the flexural properties and compressive properties of EPC decrease with further increase in fiber content, due to the insufficient wetting of fibers by epoxy resin which results in poor interfacial bonding. The reinforcing mechanisms of short natural fibers are explored according to the observation of fracture surfaces and micromechanical modelling. It is found that the parallel model based on the rule of mixture can be a good approximation to describe the improvement in flexural strength of the short natural fiber reinforced EPC at low fiber volume fractions.
分类号	二类
URL标识	查看原文
WOS关键词	COMPOSITES ; DURABILITY ; BEHAVIOR ; FRACTURE ; STRENGTH ; PROGRESS ; MORTAR
WOS研究方向	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
语种	英语
WOS记录号	WOS:000440610100001
资助机构	National Natural Science Foundation of China [11772131, 11772132] ; Natural Science Foundation of Guangdong Province, China [2015A030311046, 2015B010131009] ; State Key Laboratory of Nonlinear Mechanics (LNM), CAS ; South China University of Technology [2017ZD096]
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/77839]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.South China Univ Technol, State Key Lab Subtrop Bldg Sci, Sch Civil Engn & Transportat, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Hu B,Zhang NL,Liao YT,et al. Enhanced flexural performance of epoxy polymer concrete with short natural fibers[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2018,61(8):1107-1113.
APA	Hu B.,Zhang NL.,Liao YT.,Pan ZW.,Liu YP.,...&Jiang ZY.(2018).Enhanced flexural performance of epoxy polymer concrete with short natural fibers.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,61(8),1107-1113.
MLA	Hu B,et al."Enhanced flexural performance of epoxy polymer concrete with short natural fibers".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 61.8(2018):1107-1113.