Blockchain-Driven Transparency in Construction Tenders: Smart Contracts and Sustainable Waste Management

15 pages•Published: August 28, 2025

Silvia Meschini, Daniele Accardo, Lavinia Chiara Tagliabue, Stefano Rinaldi, Rosa Meo, Andrea Bracciali and Giuseppe Martino Di Giuda

Abstract

The integration of blockchain and smart contracts in the construction industry has the potential to revolutionize the tender phase and enhance waste management practices. The prototype is designed to enhance transparency, efficiency, and trustworthiness in Italian public procurement. To analyze the national public procurement database with a view to identifying common issues, which are often related to the lack of trust among stakeholders, Large Language Models (LLMs) are exploited. Blockchain technology has the potential to facilitate this process by eliminating discrepancies and disputes, providing a decentralized, immutable ledger to notarize data related to digital models submitted during the tender phase, thereby ensuring transparency and tamper-proof data. The automation of bid evaluations based on predefined criteria such as those pertaining to waste management, is a key feature of smart contracts, which are of particular importance in the context of construction sustainability. Such assessments are enabled, allowing for unbiased and transparent evaluations based on quantifiable data, with the results recorded automatically on the blockchain. This results in a more efficient tender process and the promotion of sustainable practices, as projects with superior waste management are given priority. A tailor-made blockchain protocol is put forth to delineate requirements and facilitate data exchanges. It establishes standards and procedures for data submission, verification, and evaluation, ensuring secure and transparent interactions and enhancing stakeholder confidence in a fair and transparent evaluation process. In summary, the use of blockchain and smart contracts in the construction tender phase improves data integrity, transparency, and efficiency. The focus on waste management indicators allows for objective project evaluations and the promotion of sustainable practices. This innovative approach has the potential to transform public procurement, establishing a new global standard for the construction industry.

Keyphrases: bim, blockchain, llm, performance based evaluation, public procurement, smart contract, sustainability, tender phase, waste management

In: Jack Cheng and Yu Yantao (editors). Proceedings of The Sixth International Conference on Civil and Building Engineering Informatics, vol 22, pages 691-705.

Links:	https://easychair.org/publications/paper/z8Gt
	https://doi.org/10.29007/dv8s

BibTeX entry

@inproceedings{ICCBEI2025:Blockchain_Driven_Transparency_Construction,
  author    = {Silvia Meschini and Daniele Accardo and Lavinia Chiara Tagliabue and Stefano Rinaldi and Rosa Meo and Andrea Bracciali and Giuseppe Martino Di Giuda},
  title     = {Blockchain-Driven Transparency in Construction Tenders: Smart Contracts and Sustainable Waste Management},
  booktitle = {Proceedings of The Sixth International Conference on Civil and Building Engineering Informatics},
  editor    = {Jack Cheng and Yu Yantao},
  series    = {Kalpa Publications in Computing},
  volume    = {22},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2515-1762},
  url       = {/publications/paper/z8Gt},
  doi       = {10.29007/dv8s},
  pages     = {691-705},
  year      = {2025}}

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