Experimental study on the effect of matrix on the flexural behavior of beams reinforced with Glass Fiber Reinforced Polymer (GFRP) bars

被引：32

作者：

Junaid, M. Talha ^{[1
]}

Elbana, Abdalla ^{[1
]}

Altoubat, Salah ^{[1
]}

Al-Sadoon, Zaid ^{[1
]}

机构：

[1] Univ Sharjah, Dept Civil & Environm Engn, Sharjah, U Arab Emirates

来源：

COMPOSITE STRUCTURES | 2019年 / 222卷

关键词：

Geopolymer concrete; Fiber reinforced concrete (FRC); Glass Fiber Reinforced Polymer (GFRP); Flexural behavior; CONCRETE BEAMS; PERFORMANCE; STRENGTH; CEMENT;

D O I：

10.1016/j.compstruct.2019.110930

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This experimental work presents results on the effect of different concrete types on the flexural behavior and deflection of beams reinforced with Glass Fiber Reinforced Polymer (GFRP) bars. Four different types of concretes namely; ordinary Portland concrete (OPCC), fiber reinforced concrete (FRC), geopolymer concrete (GPC), and fiber reinforced geopolymer concrete (FRGC) were used. A total of eight beams were subjected to four-point static bending tests. The parameters studied were load capacities, deflection, and strain development in concrete and rebars, while cracking patterns and failure modes were also observed. All tested beams exhibit comparable flexural and deflection characteristics. The results indicate that GPC and FRGC beams were more effective for a GFRP reinforced system than ordinary concrete. The ACI 440-R1-06 equations gave conservative estimates for both the flexural capacity and the deflection of the members and therefore may be used irrespective of the concrete type. Finally, results from flexural capacities normalized for concrete strength, cross-section and reinforcement ratio of GFRP (rho(f)/rho(b)) indicate that increase in the rho(f)/rho(b) ratio does not proportionally increase the flexural strength of the beams.

引用

页数：10

共 35 条

[21] Evaluation of the flexural strength and serviceability of geopolymer concrete beams reinforced with glass-fibre-reinforced polymer (GFRP) bars [J].

Maranan, G. B. ;

Manalo, A. C. ;

Benmokrane, B. ;

Karunasena, W. ;

Mendis, P. .

ENGINEERING STRUCTURES, 2015, 101 :529-541

[22] Pullout behaviour of GFRP bars with anchor head in geopolymer concrete [J].

Maranan, G. B. ;

Manalo, A. C. ;

Karunasena, W. ;

Benmokrane, B. .

COMPOSITE STRUCTURES, 2015, 132 :1113-1121

[23] Cracking behaviour of concrete beams reinforced with fiber reinforced plastic rebars [J].

Masmoudi, R ;

Benmokrane, B ;

Chaallal, O .

CANADIAN JOURNAL OF CIVIL ENGINEERING, 1996, 23 (06) :1172-1179

[24]

Mccaffrey R., 2002, GLOBAL CEM LIME MAG, V15, P19

[25] Structural performance of reinforced geopolymer concrete members: A review [J].

Mo, Kim Hung ;

Alengaram, U. Johnson ;

Jumaat, Mohd Zamin .

CONSTRUCTION AND BUILDING MATERIALS, 2016, 120 :251-264

[26] Alkali-activated fly ash/slag cement -: Strength behaviour and hydration products [J].

Puertas, F ;

Martínez-Ramírez, S ;

Alonso, S ;

Vázquez, T .

CEMENT AND CONCRETE RESEARCH, 2000, 30 (10) :1625-1632

[27]

Racines P, 1978, P INT C MAT DEV COUN

[28]

Shah S.P., 1987, Fiber reinforced concrete properties and applications

[29] Flexural performance and toughness of hybrid steel and polypropylene fibre reinforced geopolymer [J].

Sukontasukkul, Piti ;

Pongsopha, Phattharachai ;

Chindaprasirt, Prinya ;

Songpiriyakij, Smith .

CONSTRUCTION AND BUILDING MATERIALS, 2018, 161 :37-44

[30] Bond behaviour of GFRP reinforcement in alkali activated cement concrete [J].

Tekle, Biruk Hailu ;

Khennane, Amar ;

Kayali, Obada .

CONSTRUCTION AND BUILDING MATERIALS, 2017, 154 :972-982

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