Assessment of the engineering properties of biomass recycled aggregate concrete developed from coconut shells

Liu, Haibao; Li, Qiuyi; Ni, Songyuan

doi:10.1016/j.conbuildmat.2022.128015

Cited by 19 publications

(8 citation statements)

References 54 publications

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“…Regarding the endocarp, 50 samples were taken, resulting in a thickness of 3.5 ± 1 mm, and specific weight 1.29 g/cm 3 . The results obtained are within the ranges of data from previous investigations [ 5 , 16 , 17 , 28 , 29 , 30 ].…”

Section: Results and Analysissupporting

confidence: 88%

“…The main oxides found in the samples were CaO, SiO 2 , SO 3 , Al 2 O 3 , Fe 2 O 3 , MgO, P 2 O 5 , K 2 O. The percentage of each component present on each sample were compared against the chemical composition of the cement [ [30] , [35] , [36] , [37] ]. Taking cement oxides as a reference, we observed that the ash with the highest content of these oxides were: in the Fc fiber calcined at 600 °C and Fd at 650 °C, in the E3 endocarp calcined at 800 °C.…”

Section: Results and Analysismentioning

confidence: 99%

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Morphological, physical, and chemical characterization of coconut residues in Ecuador

San Andrés,

Aguilar-Sierra,

Bernardo Graziella

2023

Heliyon

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Section: Results and Analysissupporting

confidence: 88%

Section: Results and Analysismentioning

confidence: 99%

Morphological, physical, and chemical characterization of coconut residues in Ecuador

San Andrés,

Aguilar-Sierra,

Bernardo Graziella

2023

Heliyon

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“…The variation of density for the control mix (CM) and BA concrete mix with BA(CM-BA) and coconut shell BA concrete with scrap steel fiber (CS-BA-SrF)) is shown in Figure 7. The linear empirical equations that relate the percentage of coconut shell content to the density of concrete are given by equation (1). It can be observed that a very high coefficient of determination (0.96) was obtained.…”

Section: Density Of Scrap Steel Fiber Reinforced Cs Concretementioning

confidence: 99%

“…Concrete production per person in developed countries ranges between 1.5 and 3 tonnes per year. At this rate of consumption, it is difficult to meet the resource requirements for our future generation [1]. Therefore, in order to maintain sustainability and reduce the consumption of natural resources at a faster rate, the major ingredients in concrete, namely cement and aggregate are replaced with new sustainable materials.…”

Section: Introductionmentioning

confidence: 99%

Influence of biomass ash and coconut shell in scrap steel fiber reinforced concrete

Vijayalakshmi¹,

Balamurugan²,

Selvam³

et al. 2023

Građ materijali i konstrukcije

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To develop a sustainable concrete solution, the aggregates and cement in the concrete mixture were partially replaced with Cocos nucifera endocarp (coconut shell) aggregate and biomass ash (sugarcane bagasse ash) respectively. The fresh and hardened properties were studied for three types of mixes (i) the concrete mix with 10-30% replacement of cement with bagasse ash (BA), (ii) Bagasse ash concrete mix with scrap steel fiber and (ii) Bagasse ash concrete with scrap fiber and 10 - 50% coconut shell aggregate. The fresh property of concrete is positively influenced by the addition of bagasse ash. With the addition of scrap fibers and coconut shell the workability reduces by 47% when compared to the control mix. The slump values recorded for all the mixes were within the permissible limit. The density of concrete decreases with the inclusion of bagasse ash and coconut shell which helps reduce the dead weight of structural elements. The mechanical property of concrete increased by 5%, 6% and 8% in compression, split and flexure modes respectively, for 10% bagasse ash steel fiber reinforced concrete. Replacement of gravel with coconut shell affects the strength properties, but all the values were within the permissible limit for structural concrete application. The SEM image analysis showed that the porosity increased with coconut shell content. From the fresh and hardened concrete test results, it was observed that the coconut shell, bagasse ash and scrap fiber can be effectively used as substitutes for concrete ingredients to develop a sustainable fiber reinforced concrete solution.

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“…Coconut shells along with clay bricks are used to develop concrete. 38,39 Also, by using recyclable coconut shell carbon nanocomposites are made for efficient adsorption of methylene blue 40 , and some studies also extracted lignin from coconut coir. 41 Apart from numerous uses, there is a gap in the use of this biochar generated from leftover coconut shells for the removal of ions from factory fluids that contain heavy metals, despite India being number two for coconut production in the world, as evidenced by the numerous studies that have been conducted in the past.…”

Section: Introductionmentioning

confidence: 99%

Excellent Cr(vi) adsorbent made from pyrolyzed green coconut trash with parametric modelling and optimization using RSM and experimental data

et al. 2023

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Assessment of the engineering properties of biomass recycled aggregate concrete developed from coconut shells

Cited by 19 publications

References 54 publications

Morphological, physical, and chemical characterization of coconut residues in Ecuador

Morphological, physical, and chemical characterization of coconut residues in Ecuador

Influence of biomass ash and coconut shell in scrap steel fiber reinforced concrete

Excellent Cr(vi) adsorbent made from pyrolyzed green coconut trash with parametric modelling and optimization using RSM and experimental data

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