Thesis (B.S.) -- Cagayan State University, 2025.

The study evaluates PCAB-licensed contractors (level B and D) engaged in government building construction in Tuguegarao City for awareness of the CE and explores its influence in reducing construction waste. The construction sector is one of the highest consumers of raw materials and producers of waste, with a long history of practicing a linear "take, make, dispose" approach. The CE provides an alternative sustainable way by focusing on resource efficiency, waste reduction, and regeneration. Through a quantitative method, questionnaires were distributed among contractors and engineers. Data analysis utilized descriptive statistics, Relative Importance Index (RII) to rank implementation barriers, and Pearson Correlation Analysis to analyze the correlation between CE awareness and waste reduction. Findings suggest that contractors have awareness of the principles of CE, with slightly higher awareness among Level B contractors compared to Level D. Despite the awareness, there are substantial barriers limiting the implementation of CE, mainly restricted awareness of regenerative practices, inability to form strong community networks and socio-economic difficulties taking precedence over environmental issues. The research revealed no statistically significant relationship between the contractors' awareness of CE and waste reduction during construction. The research concludes that although CE awareness among contractors in Tuguegarao City exists, it does not necessarily translate into meaningful waste reduction, possibly because there are still prevailing implementation challenges. Recommendations are to expand the study sample size, test non-linear correlation analyses, extending the scope to other project types and geographies, and testing the correlation of CE awareness with other aspects such as cost savings. The study also suggests a framework for adapting and implementing the Philippine Circular Economy Promotion Act to integrate policy, engage stakeholders, undertake localized roadmaps, and monitor.

Keywords: Circular economy, barriers, awareness, waste reduction