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<p>The study focused on integrating polyvinyl chloride (PVC) waste into plaster mortar composite (PMC) to assess its impact on hygrothermal performance. It included two analyses. The first involved laboratory experiments that developed eight PMC formulations with varying PVC waste proportions. These formulations underwent testing for dry density, mechanical properties, thermal characteristics, and hygrothermal performance in controlled compartments. Results showed a significant decrease in mechanical resistance with increasing PVC content; however, all formulations met minimum standards. The thermal properties improved as the addition of PVC reduced the material's weight and enhanced thermal insulation. Furthermore, in the hygrothermal performance tests, after six hours of heating at 42°C and 40% relative humidity, the PMC formulation containing 140% PVC waste exhibited a temperature reduction of 2.2°C, suggesting an improvement in thermal insulation. Additionally, measurements of internal moisture content indicated that humidity reached 72% after six hours in the PMC panel. However, with the inclusion of 140% PVC waste, the moisture level decreased to 61%, demonstrating an improvement in moisture regulation. The second analysis employed numerical methods, utilizing a finite element model that aligned closely with experimental results, with relative errors in temperature and humidity below 3% and 5.3%, respectively. This analysis compared two hollow brick walls: one with PMC and the other with PMCPVC140. The PMCPVC140 wall exhibited enhanced thermal stability, resulting in a 10% reduction in heat flow compared to the PMC wall. This research highlighted the potential of utilizing PVC waste to enhance building materials while promoting sustainability through waste reuse.</p>

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Assessment of hygrothermal performance in plaster mortar composites incorporating polyvinyl chloride waste aggregates

  • 期刊论文

  • 发表日期：

    2025年3月21日

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  • Farid Brahim Houti,
  • Houssem Hachemi,
  • Ahmed Soufiane Benosman,
  • Omar Taleb,
  • Chakib Seladji,
  • Mohamed Mouli,
  • Imane Fatima Zohra Mesli,
  • Abdelhak Badache,
  • Müslüm Arıcı

摘要

The study focused on integrating polyvinyl chloride (PVC) waste into plaster mortar composite (PMC) to assess its impact on hygrothermal performance. It included two analyses. The first involved laboratory experiments that developed eight PMC formulations with varying PVC waste proportions. These formulations underwent testing for dry density, mechanical properties, thermal characteristics, and hygrothermal performance in controlled compartments. Results showed a significant decrease in mechanical resistance with increasing PVC content; however, all formulations met minimum standards. The thermal properties improved as the addition of PVC reduced the material's weight and enhanced thermal insulation. Furthermore, in the hygrothermal performance tests, after six hours of heating at 42°C and 40% relative humidity, the PMC formulation containing 140% PVC waste exhibited a temperature reduction of 2.2°C, suggesting an improvement in thermal insulation. Additionally, measurements of internal moisture content indicated that humidity reached 72% after six hours in the PMC panel. However, with the inclusion of 140% PVC waste, the moisture level decreased to 61%, demonstrating an improvement in moisture regulation. The second analysis employed numerical methods, utilizing a finite element model that aligned closely with experimental results, with relative errors in temperature and humidity below 3% and 5.3%, respectively. This analysis compared two hollow brick walls: one with PMC and the other with PMCPVC140. The PMCPVC140 wall exhibited enhanced thermal stability, resulting in a 10% reduction in heat flow compared to the PMC wall. This research highlighted the potential of utilizing PVC waste to enhance building materials while promoting sustainability through waste reuse.