Mechanical characterisation of sustainable fibre-reinforced lightweight concrete incorporating waste coconut shell as coarse aggregate and sisal fibre

Prakash, Ramaiah; Thenmozhi, R.; Raman, Sudharshan Naidu; Subramanian, Chidambaram; Divyah, N.

doi:10.1007/s13762-020-02900-z

Cited by 51 publications

(25 citation statements)

References 44 publications

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“…Adding fibrous material enhances concrete structural integrity. A recent study displays that the stresses like tensile and shear that emerge at a various cross-section of lightweight concrete might be reduced by strengthening concrete with glass fiber, natural fibers, and nylon 16 – 19 . Glass fibers have more resistance to temperature, corrosion resistance, non-flammability, and good strength in tension, but also great sound, heat, and electric padding.…”

Section: Introductionmentioning

confidence: 99%

A step towards sustainable glass fiber reinforced concrete utilizing silica fume and waste coconut shell aggregate

Zaid

Ahmad

Siddique

et al. 2021

Sci Rep

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Today, it’s getting harder to find natural resources for concrete production. Utilization of the waste materials not just helps in getting them used in concrete, cement, and other construction materials, but also has various secondary advantages, for example, saving in energy, decrease in landfill cost, and protecting climate from pollution. Considering this in the development of modern structural design, utilizing waste materials instead of natural aggregate is a good option to make concrete that is sustainable and eco-friendly. The present research aims to find the impact of adding glass fiber into sustainable concrete made with silica fume, as a partial replacement of cement, and coconut shell added with different ratios as a replacement of coarse aggregate, on concrete mechanical and durability aspects. Various blends were made, with coconut shell as a substitution of coarse aggregates with different ratios. Portland cement was substituted with silica fume at 5%, 10%, 15%, and 20% by cement weight in all concrete blends. The volume ratios of glass fibers utilized in this study were 0.5%, 1.0%, 1.5% and 2.0%. Adding glass fibers increases concrete density to some extent and then marginally reduces the density of coconut shell concrete. When the percentage of glass fibers increases, the compressive, flexural and split tensile strength of coconut shell concrete also increases. From the lab results and SEM images of the present research display that glass fibers might be utilized in coconut shell concrete to enhance its mechanical and durability attributes, to accomplish sustainable concrete with acceptable strength with ease.

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Section: Introductionmentioning

confidence: 99%

A step towards sustainable glass fiber reinforced concrete utilizing silica fume and waste coconut shell aggregate

Zaid

Ahmad

Siddique

et al. 2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…This increased consumption lowers the workability of concrete. As a consequence, the mixture that includes 1.0 percent SSF gives the least amount of decrease but could still be sufficiently consolidated [62]. Hemp fiber, however, has a somewhat higher slump value.…”

Section: Workabilitymentioning

confidence: 99%

Concrete Reinforced with Sisal Fibers (SSF): Overview of Mechanical and Physical Properties

et al. 2022

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Concrete is a commonly used building material; however, it is subject to abrupt failure and limited energy absorption when yielding. The use of short discrete fibers has displayed a lot of potential in overcoming these issues. Sisal is a natural fiber that is renewable, inexpensive, and readily accessible. SSF is a potential reinforcement for use in concrete because of its cheap cost, low density, high specific strength and modulus, negligible health risk, easy accessibility in certain states, and renewability. In current centuries, there has been growing importance in discovering new uses for SSF-reinforced concrete, which is normally utilized to make ropes, mats, carpets, and other decorative items. This article gives an overview of current advancements in SSF and composites. The qualities of SSF, the interface between SSF and the matrix, and SSF-reinforced properties such as fresh, mechanical strength, and durability have all been examined. The results show that SSF increased strength and durability while decreasing its flowability. The review also provides suggestions for further work.

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“…Industrial development has resulted in the rapid rise of concrete-based buildings accompanied by environmental degradation due to the use of numerous natural resources, such as aggregate. The collection of natural resources led to the destruction of rivers and mountains, resulting in a lack of resources [1][2][3]. Old buildings are dismantled for reconstruction reasons, and global construction waste amounts to 1.3 billion tons/year [4,5].…”

Section: Introductionmentioning

confidence: 99%

Study on Mechanical Properties of Concrete Using Basalt-Based Recycled Aggregate and Varying Curing Conditions

Choi

Park

2022

Materials

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To replace porous basalt, the mechanical properties of concrete with recycled resources and durability improvement were analyzed in this study. The analysis was based on the quality improvement of recycled aggregate, use of fly ash, and changes in curing conditions. Basalt aggregate (BA) with a 3% water absorption, raw recycled aggregate and basalt (RRA), and improved recycled aggregate and basalt (PRA) were the main experimental variables. As PRA was applied to concrete, the compressive strength was lower than that of the specimen comprising BA in the normal strength region, but the modulus of elasticity (22.9 GPa) was equivalent or higher. The initial drying shrinkage increased because of the use of basalt-based recycled aggregate (B-RA). The drying shrinkage of PRA was similar to that of BA with an average difference of <7% as the age increased. The specimens subjected to steam curing exhibited the lowest drying shrinkage. These results showed that pores in the old paste of recycled aggregate increased freeze–thaw resistance because of the increase in the spacing factor. Although the PRA did not satisfy the quality criteria, the efficient use of recycled aggregate achieved an equivalent or higher performance than that of concrete comprising BA and improved durability.

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Mechanical characterisation of sustainable fibre-reinforced lightweight concrete incorporating waste coconut shell as coarse aggregate and sisal fibre

Cited by 51 publications

References 44 publications

A step towards sustainable glass fiber reinforced concrete utilizing silica fume and waste coconut shell aggregate

A step towards sustainable glass fiber reinforced concrete utilizing silica fume and waste coconut shell aggregate

Concrete Reinforced with Sisal Fibers (SSF): Overview of Mechanical and Physical Properties

Study on Mechanical Properties of Concrete Using Basalt-Based Recycled Aggregate and Varying Curing Conditions

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