Contribution in the Study of the Durability of Plaster Mortar Based on Sand of Dunes Reinforced by Date Palm Fibers

Mokhtar, Rachedi

doi:10.19080/cerj.2018.04.555650

CERJ

2018

DOI: 10.19080/cerj.2018.04.555650

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Contribution in the Study of the Durability of Plaster Mortar Based on Sand of Dunes Reinforced by Date Palm Fibers

Rachedi Mokhtar¹

Abstract: Air lime as a retardant of setting time of the plaster was used, because it decreases the solubility of the latter and allows increasing the time of employment. In addition it does not affect these mechanical properties.

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Cited by 2 publications

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Thermal Properties of Plaster Reinforced with Date Palm Fibers

Mokhtar

Kriker

2020

Civil and Environmental Engineering

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This study aims both to investigate the thermal properties of plaster reinforced with date palm fibers and local natural resources valorization to batter using materials construction. For that, studying the effect of addition date palm fibers on the plaster’s thermal properties is a significant point. In this work, we measured effective thermal conductivity, thermal diffusivity, specific heat, and thermal effusivity of date palm fibers reinforced plaster has been studied by CT meter. Samples configurations with four lengths (10 mm - 40 mm) and four-weight ratios (0.5 % - 2 %) of palm fibers in plaster. The results obtained demonstrate that an increase in the fraction of date palm fiber engenders to a significant decrease in the thermal conductivity, thermal diffusivity, and effusivity, even an increase for the specific heat of different types of samples. Finally, this study is a contribution to the valorization of local materials in southern Algeria, and results encourage the use of plaster and date palm fibers in the field of construction and go to eco-friendly buildings.

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Thermal Properties of Plaster Reinforced with Date Palm Fibers

Mokhtar

Kriker

2020

Civil and Environmental Engineering

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Properties Evaluation of Composite Materials Based on Gypsum Plaster and Posidonia Oceanica Fibers

Guedri

Yahya²,

Hamdi

et al. 2023

Buildings

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Estimating the amount of material without significant losses at the end of hybrid casting is a problem addressed in this study. To minimize manufacturing costs and improve the accuracy of results, a correction factor (CF) was used in the formula to estimate the volume percent of the material in order to reduce material losses during the sample manufacturing stage, allowing for greater confidence between the approved blending plan and the results obtained. In this context, three material mixing schemes of different sizes and shapes (gypsum plaster, sand (0/2), gravel (2/4), and Posidonia oceanica fibers (PO)) were created to verify the efficiency of CF and more precisely study the physico-mechanical effects on the samples. The results show that the use of a CF can reduce mixing loss to almost 0%. The optimal compressive strength of the sample (S1B) with the lowest mixing loss was 7.50 MPa. Under optimal conditions, the addition of PO improves mix volume percent correction (negligible), flexural strength (5.45%), density (18%), and porosity (3.70%) compared withS1B. On the other hand, the addition of PO thermo-chemical treatment by NaOH increases the compressive strength (3.97%) compared with PO due to the removal of impurities on the fiber surface, as shown by scanning electron microscopy. We then determined the optimal mixture ratio (PO divided by a mixture of plaster, sand, and gravel), which equals 0.0321 because Tunisian gypsum contains small amounts of bassanite and calcite, as shown by the X-ray diffraction results.

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Contribution in the Study of the Durability of Plaster Mortar Based on Sand of Dunes Reinforced by Date Palm Fibers

Abstract: Air lime as a retardant of setting time of the plaster was used, because it decreases the solubility of the latter and allows increasing the time of employment. In addition it does not affect these mechanical properties.

Cited by 2 publications

References 2 publications

Thermal Properties of Plaster Reinforced with Date Palm Fibers

Thermal Properties of Plaster Reinforced with Date Palm Fibers

Properties Evaluation of Composite Materials Based on Gypsum Plaster and Posidonia Oceanica Fibers

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