IMECH-IR  > 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
Source PublicationSCIENCE CHINA-TECHNOLOGICAL SCIENCES
2018-08-01
Volume61Issue:8Pages:1107-1113
ISSN1674-7321
AbstractEpoxy 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.
Keywordepoxy polymer concrete (EPC) natural fibers flexural strength micromechanics models
DOI10.1007/s11431-017-9272-4
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Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000440610100001
WOS KeywordCOMPOSITES ; DURABILITY ; BEHAVIOR ; FRACTURE ; STRENGTH ; PROGRESS ; MORTAR
WOS Research AreaEngineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS SubjectEngineering ; Materials Science
Funding OrganizationNational 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]
Classification二类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77839
Collection非线性力学国家重点实验室
Affiliation1.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
Recommended Citation
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.
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