Utilization of ground waste seashells in cement mortars for masonry and plastering

Lertwattanaruk, Pusit; Makul, Natt; Siripattarapravat, Chalothorn

doi:10.1016/j.jenvman.2012.06.032

Cited by 198 publications

(122 citation statements)

References 15 publications

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“…The results of this research were in-line with other investigations that used bio-based limestone obtained from waste sea shells such as short-necked clams, oysters, and cockles to produce Portland cement mortars [35]. When 5 wt.% of ground shells were added to the mortars, the compression strengths were reduced by approximately 16% from that of mortars without limestone.…”

Section: Mechanical Propertiessupporting

confidence: 86%

Limestone derived eggshell powder as a replacement in Portland cement mortar

Pliya

Cree

2015

Construction and Building Materials

157

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Section: Mechanical Propertiessupporting

confidence: 86%

Limestone derived eggshell powder as a replacement in Portland cement mortar

Pliya

Cree

2015

Construction and Building Materials

157

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“…The use of other calcium sources such as oyster shell from agro‐industry has not yet been further investigated. Oyster shell was previously used as substitute for fine aggregate for OPC‐based mortar and concrete . It was also reported to act as filler, to reduce water demand, lower the thermal conductivity, and reduce the shrinkage of the mixture.…”

Section: Introductionmentioning

confidence: 99%

“…Oyster shell was previously used as substitute for fine aggregate for OPC-based mortar and concrete. [17][18][19][20][21] It was also reported to act as filler, to reduce water demand, lower the thermal conductivity, and reduce the shrinkage of the mixture. The use of volcanic ash (VA) for geopolymer synthesis paid less attention despite their promising application as raw aluminosilicate materials for geopolymer synthesis.…”

Section: Introductionmentioning

confidence: 99%

Gel Composition and Strength Properties of Alkali‐Activated Oyster Shell‐Volcanic Ash: Effect of Synthesis Conditions

et al. 2016

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The gel composition and mechanical properties of alkali‐activated oyster shell‐volcanic ash were investigated at different NaOH concentrations (8, 12, and 15M) and curing temperatures (60°C and 80°C) in wet and dry conditions. XRD, FTIR, SEM‐EDS, and TGA‐DSC were used for microstructural characterization of the binder. The gel composition of the system was found to be influenced by NaOH concentration and was not affected when curing temperature was varied from 60°C to 80°C. The main phase was N,C–A–S–H for all alkali‐activated oyster shell‐volcanic ash, with C–S–H as secondary phase for some samples and contains high percentage of iron. The splitting at υ3 = 1400–1494 cm−1 on FTIR spectra corresponded to the elimination of the degeneracy due to the distortion of CO32− group. The high degree of splitting indicated that this carbonate group is linked to Ca2+. The compressive strength was influenced by curing temperature and the formation of a secondary phase. The compressive strength in dry condition increased roughly between 28 and 180 d for some samples, while in wet condition, the partial dissolution of Si–O–Si bonds of some silicate phases resulted in a reduction of strength.

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“…Moreover, the preparation of controlled-low-strength materials could be another possibility for the end-use of these materials (Zhen et al, 2013;Naganathan et al, 2013;Yan and Sagoe-Crentsil, 2012;Lertwattanaruk et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Treatment of toxic metal aqueous solutions: Encapsulation in a phosphate-calcium aluminate matrix

Fernández

Navarro-Blasco

Durán

et al. 2014

Journal of Environmental Management

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Polyphosphate-modified calcium aluminate cement matrices were prepared by using aqueous solutions polluted with toxic metals as mixing water to obtain wastecontaining solid blocks with improved management and disposal. Synthetically contaminated waters containing either Pb or Cu or Zn were incorporated into phosphoaluminate cement mortars and the effects of the metal's presence on setting time and mechanical performance were assessed. Sorption and leaching tests were also executed and both retention and release patterns were investigated. For all three metals, high uptake capacities as well as percentages of retention larger than 99.9% were measured. Both Pb and Cu were seen to be largely compatible with this cementitious matrix, rendering the obtained blocks suitable for landfilling or for building purposes. However, Zn spoilt the compressive strength values because of its reaction with hydrogen phosphate anions, hindering the development of the binding matrix.

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Utilization of ground waste seashells in cement mortars for masonry and plastering

Cited by 198 publications

References 15 publications

Limestone derived eggshell powder as a replacement in Portland cement mortar

Limestone derived eggshell powder as a replacement in Portland cement mortar

Gel Composition and Strength Properties of Alkali‐Activated Oyster Shell‐Volcanic Ash: Effect of Synthesis Conditions

Treatment of toxic metal aqueous solutions: Encapsulation in a phosphate-calcium aluminate matrix

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