Revolutionizing Construction Procurement: Blockchain and Smart Contracts Driving Transparency and Monitoring Waste Production

Abstract: Construction procurement remains inefficient, paper-based, and lacks transparency. Current systems fail to ensure reliable bid evaluations and sustainability compliance, particularly in waste management. This research proposes a blockchain-based framework integrating BIM, Smart Contracts and process normalization to automate tender evaluations, ensuring tamper-proof data storage and verifiable assessments. A prototype was tested through an Italian Design-Build procurement. Results highlight enhanced compliance monitoring and fairer bid selection based on sustainability criteria. By establishing standardized processes for data submission and verification, this approach fosters trust and promotes digital transformation in public procurement, setting a new standard for transparency and waste management.