Experiment research on effect of oyster shell particle size on mortar transmission properties

Liao, Yingdi; Wang, Xin; Kong, Defu; Da, Bo; Chen, Da

doi:10.1016/j.conbuildmat.2023.131012

Cited by 14 publications

(6 citation statements)

References 36 publications

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“…When the replacement rate reached 30%, the water permeability of mortar increased by 92.36% and 34.43% after curing for 28 days and 90 days, respectively. Liao et al [ 46 ] investigated the effect of particle size of crushed seashells on the durability of mortar, and the results showed that the smaller the particle size of seashells, the greater the water permeability of mortar. When shells replaced up to 60% of the natural aggregate, Nguyen et al [ 22 ] observed an increase in the water permeability of pervious concrete.…”

Section: Durability Properties Of Concrete and Mortar Containing Seas...mentioning

confidence: 99%

“…Secondly, the cleaned, crushed, dried, and calcined seashell particles or powders were used as aggregates [ 32 , 33 , 34 , 35 ] or cement [ 36 , 37 , 38 , 39 ] substitutes and added to concrete and mortar. Finally, scholars investigated the physical [ 28 , 29 , 40 , 41 ], mechanical [ 33 , 40 , 42 , 43 , 44 ], and durability [ 35 , 38 , 45 , 46 , 47 ] properties of seashell concrete and mortar by configuring concrete and mortar with different replacement rates to determine the optimal replacement rate and provide guidance for engineering practice.…”

Section: Introductionmentioning

confidence: 99%

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Properties of Cementitious Materials Utilizing Seashells as Aggregate or Cement: Prospects and Challenges

Zhu,

Chen,

et al. 2024

Materials

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Nowadays, the sustainable development of the construction industry has become a focus of attention. Crushing and grinding waste seashells originating from the fishery industry, such as oyster shells, cockle shells, mussel shells, and scallop shells, into different particle sizes for usage as aggregate and cement in concrete or mortar provides an effective and sustainable solution to environmental problems by reducing natural resource dependence. Numerous studies have attempted to analyze the suitability of waste seashell as a possible alternative to natural aggregates and cement in concrete or mortar. This paper presents an up-to-date review of the characteristics of different types of waste seashell, as well as the physical, mechanical, durability, and other notable functional properties of seashell concrete or mortar. From the outcome of the research, waste seashell could be an inert material, and it is important to conduct a series of proper treatment for a better-quality material. It is also seen from the results that although the mechanical properties of seashell concrete have been reduced, they all meet the required criteria set by various international standards and codes. Therefore, it is recommended that the replacement of seashells as aggregate and cement should not exceed 20% and 5%, respectively. Seashell concrete or mortar would then have sufficient workability and strength for non-structural purposes. However, there is still a lack of investigation concerning the different properties of reinforced concrete members using seashells as the replacement of aggregate or cement. Further innovative research can solidify its utilization towards sustainable development.

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Section: Durability Properties Of Concrete and Mortar Containing Seas...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Properties of Cementitious Materials Utilizing Seashells as Aggregate or Cement: Prospects and Challenges

Zhu,

Chen,

et al. 2024

Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…Meanwhile, Wang et al [25] suggested an OS mortar that incorporated fly ash, with different replacement rates of traditional fine aggregate (sand): 5%, 10%, 20%, and 30%. Liao et al [26] conducted experiments where they used a mixture of natural river sand and crushed waste oyster shells with varying particle sizes as fine aggregates in the preparation of mortar. Their findings showed that, as the content of oyster shells increased, the compressive and flexural strengths of the mortar decreased.…”

Section: Introductionmentioning

confidence: 99%

Granular Skeleton Optimisation and the Influence of the Cement Paste Content in Bio-Based Oyster Shell Mortar with 100% Aggregate Replacement

Pinto Dabés Guimarães,

Nouailletas,

Perlot

et al. 2024

Sustainability

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The purpose of this paper is to propose a methodology to optimise the granular skeleton assembly of cementitious materials containing non-spherical aggregates. The method is general and can be applied to any granular skeleton whatever the aggregate shape, size, or composition because it is simply based on the direct minimisation of the intergranular porosity to consequently increase the skeleton’s compactness. Based on an experimental design approach, this method was applied to and validated for bio-based oyster shell (OS) mortar with 100% aggregate replacement. First, the best combination of seven crushed oyster shell particle classes was determined and compared with a standardised sand skeleton (0/4 mm) and three other non-optimised OS gradings in terms of intergranular porosity. In particular, it is shown that simply mimicking a reference grading curve initially designed for spherical particles with non-spherical particles led to poor performances. Then, different mortars were cast with the standardised sand skeleton, the optimised OS grading, and the three other non-optimised OS gradings by keeping the water-to-cement ratio (0.5), the aggregate bulk volume, and the cement paste content constant. Mechanical tests in compression confirmed the higher performance of the optimised OS mortar, validating the global optimisation approach. However, the high elongation of the oyster shell aggregates led to high skeleton intergranular porosities—even after optimisation—and the cement paste content needed to be adapted. For a given granular skeleton and for a constant aggregate bulk volume, the increase of the cement paste content led to an increase of both the filling ratio and the mechanical properties (compressive and flexural strengths). Finally, it is shown that the proposed skeleton optimisation and a cement paste content adjustment allowed recovering good mechanical properties for an oyster shell mortar with 100% aggregate replacement, especially in flexural tension.

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“…Em países que possuem vasto litoral, estas atividades têm ganhado importância para fornecimento de proteína animal, devido aos baixos custos e alta rentabilidade proporcionada (Vieira, Coelho & Jesus, 2019). Contudo, assim como todas as atividades humanas que fazem uso do meio ambiente, muitos impactos são resultantes da realização dessa atividade, que ocorre principalmente na parte final de sua produção, quando os animais são beneficiados e tem o seu conteúdo interno retirado de sua concha, gerando uma grande quantidade de resíduos sólidos que, em grande parte, são descartados ilegalmente em locais como mangues, aterros ou até mesmo em áreas urbanas (Li et al, 2012;Fagundes & Silva, 2022;Liao et al, 2023).…”

Section: Introductionunclassified

“…No solo, além da calcificação, a decomposição da matéria orgânica produz poluentes gasosos como NH3, H2S e gases de hidrocarbonetos, com odor e toxicidade perigosos para a saúde humana (Li et al, 2012). Quando empilhados em terrenos baldios, esses resíduos atraem mosquitos, moscas e ratos, tornando-se o local ideal para a desova e reprodução desses animais (Li et al, 2012;Liao et al, 2023). Quando as conchas de ostras e outros resíduos são descartados na água, causam poluição e infectam organismos aquáticos, resultando em impactos significativos na qualidade da água (Cheng et al, 2023).…”

Section: Introductionunclassified

Uso de resíduos de conchas de moluscos no tratamento de águas residuais: uma revisão sobre processos e potencialidades

Silva¹,

Rodrigues²,

Ursulino³

2023

J. Env. Anal. Progr.

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A pesca de mariscos é uma atividade de grande relevância para comunidades ribeirinhas por todo o mundo, contribuindo para a geração de renda familiar, produção de alimento saudável e para o desenvolvimento econômico local. Contudo, muitos impactos são resultantes dessa atividade, devido a sobra das conchas depois do beneficiamento, onde são geradas grandes quantidades de resíduos sólidos que, na maioria das vezes, são descartados incorretamente. Devido à sua composição, as conchas podem ser aplicadas em diversas áreas e, nos últimos anos, a comunidade científica tem avaliado o seu uso na biorremediação de efluentes. Nesse aspecto, o estudo objetivou realizar uma revisão sobre a utilização de resíduos de conchas de moluscos como substrato para o tratamento de águas residuais, fornecendo uma visão geral sobre a composição dos materiais, dos processos aplicados e de toda a potencialidade de reutilização ou descarte adequado desses resíduos. A revisão foi realizada buscando artigos e demais estudos provenientes das bases de dados Scopus, Web of Science e Science Direct. Os resultados obtidos apresentam uma diversidade de processos de tratamentos com diferentes valores de eficiências de remoção de compostos em efluentes brutos, sintéticos e tratados. Constatações a respeito da eficiência de adsorção de compostos fosfatados se mostraram fortemente promissoras, uma vez que, a grande maioria dos autores, mesmo utilizando-se de condições diferentes, obtiveram altas taxas de remoção. Além dos aspectos voltados aos processos físicos e químicos aplicados, os autores também enfatizaram a viabilidade econômica e à mitigação dos impactos no descarte incorreto desses materiais.

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Experiment research on effect of oyster shell particle size on mortar transmission properties

Cited by 14 publications

References 36 publications

Properties of Cementitious Materials Utilizing Seashells as Aggregate or Cement: Prospects and Challenges

Properties of Cementitious Materials Utilizing Seashells as Aggregate or Cement: Prospects and Challenges

Granular Skeleton Optimisation and the Influence of the Cement Paste Content in Bio-Based Oyster Shell Mortar with 100% Aggregate Replacement

Uso de resíduos de conchas de moluscos no tratamento de águas residuais: uma revisão sobre processos e potencialidades

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