A review on seashells ash as partial cement replacement

Mohammad, Wan Ahmad Soffian Bin Wan; Othman, Nor Hazurina; Ibrahim, Mohd Haziman Wan; Rahim, Masazurah A.; Shahidan, Shahiron; Rahman, Roslan Abdul

doi:10.1088/1757-899x/271/1/012059

Cited by 32 publications

(18 citation statements)

References 10 publications

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“…The seashell ash shows a great potential of using natural stabilizer in soil stabilization technique. The experimental evidence show seashell as cement replacement can increase tensile and compressive strengths at certain percentage replacement of seashell [20,32,15]. This is also true from previous findings show the cockle shell powder has potential as partial cement replacement in concrete [19,20,21].…”

Section: Masyitah MD Nujid Juliana Idrus Duratul Ain Tholibon Nor mentioning

confidence: 72%

Bearing Capacity of Soft Marine Soil Stabilization with Cockel Shell Powder CSP

Nujid¹,

Idrus²,

Tholibon³

et al. 2020

IJEAT

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The quality of the subgrade is depending on the geotechnical properties, strength and the stabilization technique adopted for problematic soil in order to increase the bearing value. In Malaysia, soft soil is a challenging due to very low strength value and low California Bearing Ratio (CBR) value as well. The soil stabilization process is conducted to increase bearing capacity of marine soil. An experimental works cover from identification of basic soil properties by index test, compaction test and CBR test. Though, the marine soils have to be treated and stabilized with available methods like using natural materials or additive agents. In this study, geotechnical characteristics of marine soil stabilized with CSP content were determined. The unsoaked treated marine soil stabilized with CSP was investigated. Four different compounds of the soil with 2.5, 5, 7.5 and 10% of CSP were mixed and added to determine the unsoaked CBR of the stabilized soil compounds. The results show the inclusion of CSP reduced the plasticity of the soil and highest dry density was decreased with an increase in the optimum water content. Moreover, by increasing the content of CSP the highest CBR value at 2.5 and 5.0 mm penetrations were achieved. The increasing percentage volume of water usage indicates the decreasing value of CBR. The results indicated that CSP contents have potential as a natural stabilizer for applications such as road sub-base material in road construction. The road sub-base will gain great strength with addition of CSP on marine soil

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Section: Masyitah MD Nujid Juliana Idrus Duratul Ain Tholibon Nor mentioning

confidence: 72%

Bearing Capacity of Soft Marine Soil Stabilization with Cockel Shell Powder CSP

Nujid¹,

Idrus²,

Tholibon³

et al. 2020

IJEAT

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“…The value of the flexural strength decrease for increased curing age in the OPC with 30% SSP mortar mix. This is because the shape of SSP plays a vital role in reducing the flexural strength of the beam [67]. Moreover, from this graph, the flexural strength of concrete mix started to increase with a decrease in the percentage of SSP and got an adequate flexural strength at 5% SSP and 25% POFA mix.…”

Section: Flexural Strengthmentioning

confidence: 83%

Investigation on the Properties of Mortar Containing Palm Oil Fuel Ash and Seashell Powder as Partial Cement Replacement

et al. 2021

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The concept of utilizing various types of wastes, such as agricultural dumps and marine by-products, as a partial replacement of cement has gained a great interest to develop eco-friendly and economical mortars for sustainable construction. This study aims to evaluate the feasibility of using palm oil fuel ash (POFA), an agro-industrial waste by-product from palm oil mills and seashell powder (SSP) derived from seashells, a marine waste material partial replacement of cement in mortars. The water to binder (w/b) ratio of 0.49 and the sand to binder (s/b) ratio of 2.54 with 0% to 30% of ordinary portland cement (OPC) by weight was replaced with POFA and SSP, and the resulting mortar samples were tested for mechanical properties and durability in this study. The compressive strength, flexural strength, water absorption, and flow table tests were performed in this study for different percentages of POFA and SSP after 7, 28, and 130 days. The results showed that the 30% POFA incorporated mortars achieved the highest compressive strength (35.12N/mm2), flexural strength (4.06N/mm2), high density with less water absorption (4.79%) after 130 days of curing and the high strength mortar with less water flow (22.2cm) during casting. Also, it found that the 25% POFA and 5% SSP incorporated mortars attained acceptable results as supplementary cementing material. This study suggests that the POFA and SSP incorporated mortars could be used in concrete for sustainable development of construction through the efficient valorization of waste materials.

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“…Though limited research had been carried out on the applications of waste shells as partial cement replacement in cement mortar for masonry, the use of crushed oyster, mussel, clam and mollusk shells showed that the compressive strength of the cement mortars obtained were lower than that of control sample for both 7 and 28 days' curing (Table 7). In spite of this, the observed compressive strength of the cement mortar achieved with these shells is still within the tolerable range in the construction industry (Mohammad et al, 2017).…”

Section: Cement Additive Concrete Aggregate and Ceramic Materialsmentioning

confidence: 90%

Mini-review of waste shell-derived materials’ applications

Hart

2020

Waste Manag Res

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This mini-review reports curbing waste shells (i.e. seashells, eggshells, snail shells, etc.), environmental health issues and liabilities by using them as material for heterogenous catalysts, blended cement manufacture, concrete aggregate, ceramics and plastics additives, biofilter medium and biomedical applications. The traditional materials used in the manufacture of these products could be relatively cheap; however, there are considerable environmental issues (i.e., ecological damage, disruption of eco-system and air contamination) as well as intense energy consumption associated with the exploitation of depleting natural resources. Waste shells are a renewable and cheap alternative, and will simultaneously decrease manufacturing cost while reducing their burden on the environment. This paper emphasizes environmental sustainability by summarizing articles published on various applications of waste shell-derived biomaterials. The properties of waste shell-derived biomaterials are presented and discussed. The materials’ properties suggest they are similar to limestone and their biological–natural origin and the high calcium carbonate content with a trace amount of other mineral elements makes them highly favorable for cement production, heterogenous catalysts and hydroxyapatite manufacture for biomedical and wastewater treatment applications. The purpose of this work is to offer new perspectives and direction for future research on waste shell-derived biomaterials while existing areas of applications demanding scale up are highlighted.

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A review on seashells ash as partial cement replacement

Cited by 32 publications

References 10 publications

Bearing Capacity of Soft Marine Soil Stabilization with Cockel Shell Powder CSP

Bearing Capacity of Soft Marine Soil Stabilization with Cockel Shell Powder CSP

Investigation on the Properties of Mortar Containing Palm Oil Fuel Ash and Seashell Powder as Partial Cement Replacement

Mini-review of waste shell-derived materials’ applications

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