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<p>Mortar and concrete are the two most commonly used materials in the construction industry. Many researchers aim to obtain sustainable concrete or mortar by reusing available waste materials from the environment. Using waste materials in these mixes can address their weaknesses, which is considered a significant improvement. One such weakness is the lack of bending resistance in masonry walls, often leading to cracks due to dynamic forces. To improve the bending ability of mortar and, by extension, the walls, numerous studies have focused on enhancing its properties. One effective method is incorporating fibers into the mortar. As a result, many types of fibers have been tested by previous researchers. This article investigates the use of waste carpet fiber in mortar at eight different percentages: 0%, 0.25%, 0.5%, 0.75%, 1%, 1.25%, 1.5%, and 1.75%. The objective was to examine the effects of these fiber rates on the fresh, mechanical, and thermal properties of the mortar. The results showed that adding carpet fiber reduced the compressive strength, slump, and thermal conductivity. This reduction is attributed to the carpet fiber creating additional voids or altering the mix's structure, which may lower the material's overall density and cohesion. However, the addition of 0.5% carpet fiber improved the flexural strength, while higher concentrations led to a decrease in flexural strength.</p>

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Investigating the effect of carpet fiber on the fresh, mechanical, durability and thermal conductivity properties of sustainable mortar; experimental work

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月4日

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  • Niyan Abdalkarim Hamid,
  • Herish Omar Faraj Jaf,
  • Hersh F. Mahmood,
  • Sary Nasr Husein,
  • Soran Abdrahman Ahamd,
  • Azhi Surkew Sabir,
  • Chovan Majeed Faraj,
  • Merg Fazil Majed

摘要

Mortar and concrete are the two most commonly used materials in the construction industry. Many researchers aim to obtain sustainable concrete or mortar by reusing available waste materials from the environment. Using waste materials in these mixes can address their weaknesses, which is considered a significant improvement. One such weakness is the lack of bending resistance in masonry walls, often leading to cracks due to dynamic forces. To improve the bending ability of mortar and, by extension, the walls, numerous studies have focused on enhancing its properties. One effective method is incorporating fibers into the mortar. As a result, many types of fibers have been tested by previous researchers. This article investigates the use of waste carpet fiber in mortar at eight different percentages: 0%, 0.25%, 0.5%, 0.75%, 1%, 1.25%, 1.5%, and 1.75%. The objective was to examine the effects of these fiber rates on the fresh, mechanical, and thermal properties of the mortar. The results showed that adding carpet fiber reduced the compressive strength, slump, and thermal conductivity. This reduction is attributed to the carpet fiber creating additional voids or altering the mix's structure, which may lower the material's overall density and cohesion. However, the addition of 0.5% carpet fiber improved the flexural strength, while higher concentrations led to a decrease in flexural strength.