Durability Characteristics of Hybrid Fiber Reinforced Geopolymer Concrete with M-Sand

Yadav, Bhuvnesh; Yaswanth, K. K.; vani, Bha

doi:10.14445/23488352/ijce-v5i11p101

Cited by 1 publication

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“…There are many types of PFs. Similar to fibers content, different types of fiber have different effects on the strength of PFRGs [ 98 ]. Korniejenko et al [ 93 ] added 1% of different types of PFs to the geopolymer mixture.…”

Section: Mechanical Properties Of Pfrgsmentioning

confidence: 99%

“…In contrast, another flexural strength test showed that the performance of the specimens without fiber was basically the same as that of the specimens with coir fibers, cotton fibers, or sisal fibers. The addition of natural fibers has no significant effect on the flexural strength of the PFRG, contrary to the addition of man-made fibers [ 98 ].…”

Section: Mechanical Properties Of Pfrgsmentioning

confidence: 99%

“… Microstructure of fiber in matrix after bending ( a ) Coir fiber; [ 98 ] ( b ) Bamboo fiber [ 110 ]. …”

Section: Figurementioning

confidence: 99%

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The Mechanical Properties of Plant Fiber-Reinforced Geopolymers: A Review

Liu

Guo

et al. 2022

Polymers

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Both geopolymer and plant fiber (PF) meet the requirements of sustainable development. Geopolymers have the advantages of simple preparation process, conservation and environmental protection, high early strength, wide source of raw materials, and low cost. They have broad application prospects and are considered as the most potential cementitious materials to replace cement. However, due to the ceramic-like shape and brittleness of geopolymers, their flexural strength and tensile strength are poor, and they are sensitive to microcracks. In order to solve the brittleness problem of geopolymers, the toughness of composites can be improved by adding fibers. Adding fibers to geopolymers can limit the growth of cracks and enhance the ductility, toughness and tensile strength of geopolymers. PF is a good natural polymer material, with the advantages of low density, high aspect ratio. It is not only cheap, easy to obtain, abundant sources, but also can be repeatedly processed and biodegradable. PF has high strength and low hardness, which can improve the toughness of composites. Nowadays, the research and engineering application of plant fiber-reinforced geopolymers (PFRGs) are more and more extensive. In this paper, the recent studies on mechanical properties of PFRGs were reviewed. The characteristics of plant fibers and the composition, structure and properties of geopolymers were reviewed. The compatibility of geopolymer material and plant fiber and the degradation of fiber in the substrate were analyzed. From the perspective of the effect of plant fibers on the compression, tensile and bending properties of geopolymer, the reinforcing mechanism of plant fibers on geopolymer was analyzed. Meanwhile, the effect of PF pretreatment on the mechanical properties of the PFRGs was analyzed. Through the comprehensive analysis of PFFRGs, the limitations and recommendations of PFFRG are put forward.

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Section: Mechanical Properties Of Pfrgsmentioning

confidence: 99%

Section: Mechanical Properties Of Pfrgsmentioning

confidence: 99%