Comparative Study of Sisal and PVA Fiber for Soil Improvement

Sharma, Anil Kumar; Prasannan, Swetha; Kolathayar, Sreevalsa

doi:10.1061/9780784482117.030

Cited by 11 publications

(9 citation statements)

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“…Residual strength is an indicator of a material's toughness (Kiran and Ramakrishna, 2019). The greater the residual strength, the stronger the continuous bearing capacity of the material (Castoldi et al, 2019;Sharma et al, 2019). Materials with brittle failure often have no residual strength (Spencer and Sass, 2019).…”

Section: Effect Of Fiber Content On Enzymeinduced Calcium Carbonate P...mentioning

confidence: 99%

“…Fiber type, fiber length and fiber content are the key factors affecting the treating effect (Choi et al, 2019;Xiao et al, 2019;Jiang et al, 2021). In general, after EICP treatment, the mechanical properties of sand with fibers are greatly improved, such as unconfined compressive strength, splitting tensile strength, residual strain and failure strain (Sharma et al, 2019;Zhao et al, 2020b). The conversion rate of calcium carbonate was also improved after fiber was added.…”

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confidence: 99%

“…Sisal fiber is an ideal fiber with low price, abundant yield and environmental protection (Castoldi et al, 2019). Its mechanical properties are even better than synthetic fibers (Sharma et al, 2019). Compared with synthetic fibers, degradation of natural fibers is controllable, which is mainly reflected in the following two aspects.…”

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confidence: 99%

“…Analysis of EICP solution will also help to understand the mechanism (Yao et al, 2021). In addition, natural fibers are made from cellulose and are biodegradable (Senthilkumar et al, 2018;Sharma et al, 2019). Wet-dry cycle test is helpful to understand the performance of natural fiber-soil composites under short-term environmental erosion (Ibraim et al, 2012;De Melo et al, 2019).…”

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confidence: 99%

“…Wet-dry cycle test is helpful to understand the performance of natural fiber-soil composites under short-term environmental erosion (Ibraim et al, 2012;De Melo et al, 2019). This is the basis for exploring the life cycle durability of natural fibers in the future (Sharma et al, 2019). Nevertheless, most of the studies about EICP-treated sand reinforced by sisal fibers have ignored these aspects (Almajed et al, 2018).…”

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confidence: 99%

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Experimental investigation on mechanical behavior of sands treated by enzyme-induced calcium carbonate precipitation with assistance of sisal-fiber nucleation

et al. 2022

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Sisal fibers had obvious advantages of mechanical strength on reinforced enzyme-induced calcium carbonate precipitation (EICP)-cemented loose sands. However, there are few related researches, whose research on strength and toughness is not sufficient, and the analysis on mechanism is lacking. In this article, sisal fiber was used to strengthen EICP-treated sand, and the mechanical properties and underlying mechanism were experimentally explored. The results show that the strength and toughness of EICP-treated sand can be effectively improved by sisal fibers. The optimal sisal fiber length is 10 mm and the optimal fiber content is 0.2%. The wet-dry cycle resistance of the samples is improved simultaneously. Microscopic study showed that the rough surface of sisal fiber provided a large number of nucleation sites for calcium carbonate precipitation and formed an effective “bridge network.” This study reports the potential and the underlying mechanism of sisal fiber on improvement of EICP performance by new test methods and provides new insight into enhancing mechanical behavior of EICP-cemented loose sands with natural fiber.

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Section: Effect Of Fiber Content On Enzymeinduced Calcium Carbonate P...mentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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