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Abstract <p>In construction, the material was used to hold the gaps between bricks and blocks called cement mortar. Cement mortar is a mixture made from sand, binder (cement or lime), and water to homogenous. This mixture was supported with waste storage device like compact disc (CD) after converted to powder. Waste compact disc powder was added to the mixture at different weight percentage (2, 3, 4 wt %). The cement mortar reinforced was evaluated with compressive strength, hardness Shore D, and bending strength. Samples of cement mortar were fabricated according to Taguchi L9 orthogonal array. Statically, ANOVA (one-way analysis) was applied to all the data. The maximum result of compressive strength was showed at 4 wt % CD powder, 1.9 g cement, and 28 days curing in water. The optimum result of hardness was obtained at 4 wt % CD powder), 3.9 g, cement, and 28 days, curing in water. The optimum results of bending strength showed 2 wt % compact disc powder, 3.9 g cement, and 14 days curing in water. The results of the statistical program finds that the CD powder (wt %) and curing time in the water (days) have more influence on the properties of cement mortar reinforced compared to weight of cement (g). Finally, increased the weight percentage of CD powder improved the compressive strength and the hardness of the cement mortar.</p>

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Investigating the Mechanical Properties of Cement Mortar Reinforced by Recycled Compact Disc Powder

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • Shatha Riyadh Ahmed,
  • Zinah N. Alabdali,
  • Aseel B. AL-Zubaidi

摘要

Abstract

In construction, the material was used to hold the gaps between bricks and blocks called cement mortar. Cement mortar is a mixture made from sand, binder (cement or lime), and water to homogenous. This mixture was supported with waste storage device like compact disc (CD) after converted to powder. Waste compact disc powder was added to the mixture at different weight percentage (2, 3, 4 wt %). The cement mortar reinforced was evaluated with compressive strength, hardness Shore D, and bending strength. Samples of cement mortar were fabricated according to Taguchi L9 orthogonal array. Statically, ANOVA (one-way analysis) was applied to all the data. The maximum result of compressive strength was showed at 4 wt % CD powder, 1.9 g cement, and 28 days curing in water. The optimum result of hardness was obtained at 4 wt % CD powder), 3.9 g, cement, and 28 days, curing in water. The optimum results of bending strength showed 2 wt % compact disc powder, 3.9 g cement, and 14 days curing in water. The results of the statistical program finds that the CD powder (wt %) and curing time in the water (days) have more influence on the properties of cement mortar reinforced compared to weight of cement (g). Finally, increased the weight percentage of CD powder improved the compressive strength and the hardness of the cement mortar.