Optimization of Construction Waste Management in Civil Projects with a Focus on Cost Reduction an‎d Sustainability Enhancement

11/20/2025 12:00:00 AM

This study was conducted with the aim of eva‎luating an‎d optimizing construction waste management in civil engineering projects, an‎d examining the interrelationships among five key dimensions: the current status of waste management, cost reduction factors, sustainability enhancement strategies, challenges an‎d barriers, an‎d improvement suggestions an‎d solutions. The research design adopted a mixed-methods approach. Quantitative data collected through questionnaires were analyzed using descriptive statistics, the Kolmogorov–Smirnov test to assess data normality, an‎d both simple an‎d multiple linear regression analyses.Building Information Modeling(BIM) simulations supported by an Aplication Programming Interface(API)-based data interface an‎d developed within a design science research framework were used to model material consumption an‎d waste generation in two structural scenarios: reinforced concrete frame an‎d light steel frame. Model validation was carried out according to the criteria of cost savings, waste reduction, resource efficiency, an‎d environmental impact. Regression analysis revealed that sustainability strategies explained 56.3% of the variance in the overall performance index, cost reduction factors 31.6%, current waste management status 17.2%, an‎d challenges 43.5%. The combination of these four main factors was able to predict 94.7% of the total variance. BIM-based simulations also demonstrated that the light steel frame scenario consumed fewer materials compared to the concrete frame, reduced non-recyclable waste, an‎d improved both resource efficiency an‎d environmental outcomes. The results emphasize the necessity of establishing an integrated framework for construction waste management that encompasses sustainable policymaking, cost reduction strategies, process improvement of current practices, an‎d effective management of barriers. The BIM-based scenario further indicated that design decisions an‎d material substitutions can significantly reduce waste, costs, an‎d environmental impacts.

مديريت پسماند ساختماني، كاهش هزينه، راهبردهاي پايداري، شبيه‌سازي BIM، تحليل رگرسيون

Construction Waste Management, Cost Reduction, Sustainability Strategies, BIM Simulation, Regression Analysis

Amir Ghojavand

Dr. Mostafa Khanzadi