Effect of Sisal Fiber on Fracture Performance of Recycled Aggregate Concrete - Details

author：

Xiao, Jianzhuang (Xiao, Jianzhuang.) ^[1] | Xu, Jinxiao (Xu, Jinxiao.) ^[2] | Luo, Surong (Luo, Surong.) ^[3] | Zhang, Kaijian (Zhang, Kaijian.) ^[4] | Zhang, Qingtian (Zhang, Qingtian.) ^[5]

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Abstract：

In　order　to　improve　the　fracture　performance　of　recycled　aggregate　concrete　RAC　the　effects　of　recycled　coarse　aggregate　RCA　and　sisal　fiber　on　the　fracture　performance　of　RAC　were　studied　based　on　the　threepoint　bending　beam　test　by　mixing　sisal　fiber　into　RAC.　The　results　show　that　compared　with　ordinary　concrete　the　initiation　toughness　instability　toughness　and　fracture　energy　of　RAC　without　sisal　fiber　are　reduced　by　20.36%　17.36%　and　20.66%　respectively　when　the　replacement　rate　of　RCA　is　100%.　When　the　length　of　sisal　fiber　is　10　mm　and　its　volume　fraction　is　0.2%　it　has　the　best　improvement　effect　on　the　initiation　toughness　of　RAC　which　is　37.81%　higher　than　that　of　RAC　without　sisal　fiber.　In　terms　of　instability　toughness　and　fracture　energy　the　optimal　volume　fraction　of　sisal　fiber　is　0.3%.　In　summary　the　incorporation　of　sisal　fiber　can　effectively　improve　the　fracture　performance　of　RAC.　©　2023　Tongji　University.　All　rights　reserved.

Keyword：

Concrete aggregates Concrete testing Ductile fracture Fibers Fracture energy Fracture toughness Recycling Volume fraction

Community：

[ 1 ] [Xiao, Jianzhuang]College of Civil Engineering, Fuzhou University, Fuzhou; 350116, China
[ 2 ] [Xiao, Jianzhuang]College of Civil Engineering, Tongji University, Shanghai; 200092, China
[ 3 ] [Xu, Jinxiao]College of Civil Engineering, Fuzhou University, Fuzhou; 350116, China
[ 4 ] [Luo, Surong]College of Civil Engineering, Fuzhou University, Fuzhou; 350116, China
[ 5 ] [Zhang, Kaijian]College of Civil Engineering, Fuzhou University, Fuzhou; 350116, China
[ 6 ] [Zhang, Qingtian]College of Civil Engineering, Fuzhou University, Fuzhou; 350116, China

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Related Keywords：

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Source ：

Journal of Building Materials

ISSN： 1007-9629

Year： 2023

Issue： 6

Volume： 26

Page： 587-595

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count： 5

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 0

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