بررسی وارزیابی شاخص های توسعه پایدار در ساخت دیوارهای ساختمانی با استفاده از بتن سبک ساخته شده از ضایعات پتروشیمی

The continuous use of natural resources, especially non-renewable materials, is one of the serious challenges of the construction industry in the path of sustainable development. This study was conducted to evaluate the possibility of using petrochemical waste in the manufacture of lightweight concrete blocks and to examine their performance from the perspective of sustainable development indicators (economic, environmental and social). Concrete samples were made with different cement ratios (175, 200 and 350 kg/m3) and their compressive strength was measured at the ages of 7, 14 and 28 days. The results showed that the sample with 350 kg cement had the highest compressive strength, equal to 6.2 MPa, which is higher than the minimum required value according to the Iranian National Standard 7782 (minimum 2.5 MPa) for non-load-bearing walls. The unit weight of the samples was also within the range of lightweight concrete and the thermal resistance was measured to be 1.0837 W/m2 Kelvin, indicating adequate thermal performance. SWOT analysis also showed that this type of concrete can be effective in achieving sustainable development goals by reducing the consumption of natural resources, recycling industrial waste, and reducing production costs. The widespread use of this type of lightweight concrete can reduce environmental pollution, improve the quality of life of residents, and increase energy efficiency in buildings.