Mechanical properties of concrete with seashell waste as partial replacement of cement and aggregate

Sangeetha, P.; Shanmugapriya, M.; Saravanan, K.; Prabhakaran, Priyanka; Shashankar, V.

doi:10.1016/j.matpr.2021.09.501

Cited by 18 publications

(15 citation statements)

References 21 publications

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“…The use of these seashells as a recycled aggregate in cement materials shows the feasibility and durability needed. The authors also concluded that seashells are very economical in terms of price, compared to conventional aggregates [8].…”

Section: Introductionmentioning

confidence: 98%

Seashell as Aggregate in Cemented Materials: A Review

Essalem¹,

Cherradi²

2023

cea

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Section: Introductionmentioning

confidence: 98%

Seashell as Aggregate in Cemented Materials: A Review

Essalem¹,

Cherradi²

2023

cea

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“…Consequently, all such awful characteristics will have a deleterious impact on the wholeness of cement-based composite products and may create pathways for ion migration in the hardened cement matrix. Nevertheless, to achieve a superior quality of mortar or concrete, treated aquaculture seashells serving as a replacement for cement, sand, and granite have been found in recent empirical studies [ 5 , 10 , 11 , 12 , 13 ]. Seashell is a hard, protective outer layer produced by marine organisms.…”

Section: Introductionmentioning

confidence: 99%

“…In driving the utilisation of seashell wastes in cementitious products, reviewed papers [ 3 , 4 , 10 , 15 , 16 , 17 ] and experimental works [ 5 , 11 , 12 , 13 , 14 , 15 , 18 , 19 , 20 , 21 , 22 , 23 ] have studied the feasibility of incorporating various types into cement-based composite products. Mo et al’s [ 3 , 16 ] and Eziefula et al’s [ 4 ] review studies concluded that using a seashell as a substitute for aggregate in concrete reduces the physicomechanical properties of seashell-based concrete while up to 50% replacement level can develop a concrete applicable for non-structural use.…”

Section: Introductionmentioning

confidence: 99%

“…Their finding indicated that a technically sound fireproofing panel was manufactured with up to 60% gypsum replacement with a seashell. Sangeetha et al [ 13 ] empirically demonstrated the impact of calcined seashell ash and particles as a partial cement and aggregate replacement in M25 grade concrete. The authors investigated compressive, flexural, and splitting tensile strength mechanical properties after 7, 28, 56, and 90 days of hydration using a constant 0.5 W/C ratio.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the Mechanical and Microstructural Properties of Masonry Mortar Made with Seashell Particles

et al. 2023

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In order to study the mechanical and microstructural properties of masonry mortar, combined particles of cockle and scallop seashell wastes were incorporated and analysed through destructive and non-destructive tests. River sand was replaced with the combined seashell particles (SPs) at seven mixes, viz., 0, 5, 10, 15, 20, 25, and 30% with a 0.5 constant water-to-cement ratio (W/C). A mortar mix design of M4-type of BS EN 1996-1-1 was adopted with a target compressive strength of 5.17 MPa at 28 days. The physical, chemical and mineralogy properties of the SPs were analysed through BS standard sieving, X-ray fluorescence (XRF), scanning electron microscopy (SEM), and X-ray diffraction (XRD) methods. The hardened SP-based mortars were subjected to direct compressive strength, rebound hammer, ultrasonic pulse velocity tests, and nonevaporable degree of hydration analysis. The XRF, SEM, and XRD analysis results of the SPs showed over 86% calcium oxide content, irregular and needle-like particles, and hydroxyapatite/calcium silicates, respectively. The direct compressive strength and the non-destructive test results revealed that up to 30% sand replacement with SP in masonry mortar, an improvement of 45% compressive strength could be attained over the control sample. The nonevaporable water method of the degree of hydration analysis showed that after 28 days, hydration increased considerably for the SP-blended mortars over the control, especially the SPM-30 with 30% sand replacement. Therefore, the study concludes that the investigated SPs in blended masonry mortar could benefit an eco-friendly environment and conservation of natural resources.

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“…Previous research has considered the use of seashell wastes in cement-based materials for the building and construction industry [5,8,9]. Martinez-Garcia et al [10] investigated the effect of replacing the fine and coarse aggregates by mussel shells at different ratios varying from 25% to 100% in mortar mixtures.…”

Section: Introductionmentioning

confidence: 99%

Use of Seashell and Limestone Fillers in Metakaolin-Based Geopolymers for Masonry Mortars

Assaad

Saba

2023

Minerals

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Mortars intended for plastering and masonry works normally comply to EN 413-1 and/or ASTM C91 specifications. This paper seeks to assess the suitability of geopolymers (GPs) composed of metakaolin and seashell wastes for masonry applications. The sodium hydroxide and sodium silicate activators contained air-entraining molecules to secure about 10% ± 2% air content. Just like the cement-based mortars, test results showed that the mechanical properties of GPs including the compressive strength, flexural strength, pull-off adhesion, and water sorptivity decreased when the seashell concentration increased in the mixture. This was mainly related to a dilution effect that reduces the aluminosilicate precursor content and formation of rigid bonds. The replacement of limestone filler by seashell powder slightly increased the mechanical properties, which was attributed to higher seashell hardness that densifies the microstructure and provides additional resistance to support the external stresses. Yet, the grinding of seashells into fine powder required higher energy than what is needed for the comminution of clinker or limestone. The use of GPs is particularly advantageous for masonry applications, as it speeds up the construction operations while eliminating the hassle of moist curing normally required with cement-based plasters.

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Mechanical properties of concrete with seashell waste as partial replacement of cement and aggregate

Cited by 18 publications

References 21 publications

Seashell as Aggregate in Cemented Materials: A Review

Seashell as Aggregate in Cemented Materials: A Review

Investigation of the Mechanical and Microstructural Properties of Masonry Mortar Made with Seashell Particles

Use of Seashell and Limestone Fillers in Metakaolin-Based Geopolymers for Masonry Mortars

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