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<p>This paper presents a comprehensive investigation into the mechanical performance of Mazri (Date-palm) leaf straw reinforced concrete (MSRC), which is found in the South-Western part of Pakistan. The research explores the impact of different Mazri straw dosages of 0.5%, 1% and 1.5% by cement weight at the aspect ratios of 6.67 and 13.33. The key mechanical properties of the concrete matrix, including ultrasonic pulse velocity (UPV), compressive, tensile, and flexural strength were assessed at 28&#xa0;day strength. The results demonstrate that the split tensile strength was improved by 26% (L2) and the Modulus of Rupture was improved by 15% (L1) at the optimum straw dosage of 0.5%. The study further examined the behavior of Mazri rope confined-concrete cylinders, which increased ultimate strength by 31.3%. Finally, a key contribution of this work is the development of empirical relationships for predicting the mechanical properties of MSRC concrete using the non-destructive UPV test. The research further explores that the use of Mazri straws is a cost-effective solution as it reduces 16% of Civil Works cost and is an environmentally responsible alternative as natural fiber reinforced concrete sequestrates 20% more CO<sub>2</sub>.</p>

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Investigation of Mechanical Properties of Mazri (Date-Palm) Leaf Straw Reinforced Concrete

  • 期刊论文

  • 发表日期：

    2026年6月1日

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  • Muhammad Arslan Qureshi,
  • Mudassar Munir Shah

摘要

This paper presents a comprehensive investigation into the mechanical performance of Mazri (Date-palm) leaf straw reinforced concrete (MSRC), which is found in the South-Western part of Pakistan. The research explores the impact of different Mazri straw dosages of 0.5%, 1% and 1.5% by cement weight at the aspect ratios of 6.67 and 13.33. The key mechanical properties of the concrete matrix, including ultrasonic pulse velocity (UPV), compressive, tensile, and flexural strength were assessed at 28 day strength. The results demonstrate that the split tensile strength was improved by 26% (L2) and the Modulus of Rupture was improved by 15% (L1) at the optimum straw dosage of 0.5%. The study further examined the behavior of Mazri rope confined-concrete cylinders, which increased ultimate strength by 31.3%. Finally, a key contribution of this work is the development of empirical relationships for predicting the mechanical properties of MSRC concrete using the non-destructive UPV test. The research further explores that the use of Mazri straws is a cost-effective solution as it reduces 16% of Civil Works cost and is an environmentally responsible alternative as natural fiber reinforced concrete sequestrates 20% more CO2.