Resistance of Straw-Geopolymer Materials to Acid and Alkali Attack

Jin, Ming; Xia, Rui Qi; Zhu, Cong Ying; Zheng, Yan Xia; Jin, Zan Fang

doi:10.4028/www.scientific.net/msf.852.1409

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…Malkawi et al [114] used palm oil clinker as a lightweight aggregate to prepare GP composites. Compared with the control group, the workability of light aggregate GP From the perspective of low carbon and environmental protection, relevant personnel also carried out research on the related properties of waste PFRGs [113]. Liu et al [85] studied the influence of four variables, including thermal properties, mechanical properties, hydraulic properties, and microscopic morphology, on the properties of biological thermal insulation materials using wheat straw as aggregate and GP as binder.…”

Section: Effect Of Pfs On the Workability Of Gpmentioning

confidence: 99%

Effect of Plant Fiber on Early Properties of Geopolymer

Lv,

Wu,

Guo

et al. 2023

Molecules

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Geopolymer (GP) is environmentally friendly, has good mechanical properties and long-term workability, and has broad application prospects. However, due to the poor tensile strength and toughness of GPs, they are sensitive to microcracks, which limits their application in engineering. Fiber can be added to GPs to limit the growth of cracks and enhance the toughness of the GP. Plant fiber (PF) is cheap, easy to obtain, and abundant in source, which can be added to GP to improve the properties of composites. This paper reviews recent studies on the early properties of plant fiber-reinforced geopolymers (PFRGs). In this manuscript, the properties of PFs commonly used for GP reinforcements are summarized. The early properties of PFRGs were reviewed, including the rheological properties of fresh GPs, the early strength of PFRGs, and the early shrinkage and deformation properties of PFRGs. At the same time, the action mechanism and influencing factors of PFRGs are also introduced. Based on the comprehensive analysis of the early properties of PFRGs, the adverse effects of PFs on the early properties of GPs and the solutions were summarized.

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Section: Effect Of Pfs On the Workability Of Gpmentioning

confidence: 99%

Effect of Plant Fiber on Early Properties of Geopolymer

Lv,

Wu,

Guo

et al. 2023

Molecules

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“…However, in a strong acid solution, the properties of CFGCs also change greatly. Jin [ 81 ] synthesized a metakaolin-based geopolymer from rice straw fiber. The straw geopolymer was soaked in sulfuric acid solution at pH 1.0, 3.0 and 5.0 and sodium hydroxide solution at pH 9.0, 11.0 and 13.0.…”

Section: Research Status Of the Durability Of Cfgcsmentioning

confidence: 99%

Durability of Cellulosic-Fiber-Reinforced Geopolymers: A Review

Liu

2022

Molecules

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Geopolymers have high early strength, fast hardening speed and wide sources of raw materials, and have good durability properties such as high temperature resistance and corrosion resistance. On the other hand, there are abundant sources of plant or cellulose fibers, and it has the advantages of having a low cost, a light weight, strong adhesion and biodegradability. In this context, the geopolymer sector is considering cellulose fibers as a sustainable reinforcement for developing composites. Cellulosic-fiber-reinforced geopolymer composites have broad development prospects. This paper presents a review of the literature research on the durability of cellulosic-fiber-reinforced geopolymer composites in recent years. In this paper, the typical properties of cellulose fibers are summarized, and the polymerization mechanism of geopolymers is briefly discussed. The factors influencing the durability of cellulosic-fiber-reinforced geopolymer composites were summarized and analyzed, including the degradation of fibers in a geopolymer matrix, the toughness of fiber against matrix cracking, the acid resistance, and resistance to chloride ion penetration, high temperature resistance, etc. Finally, the influence of nanomaterials on the properties of geopolymer composites and the chemical modification of fibers are analyzed, and the research on cellulosic-fiber-reinforced geopolymer composites is summarized.

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