Liupengfei Wu

The University of Hong Kong | HKU · Department of Real Estate and Construction

Industrial stakeholders have complained that current blockchain systems are too expensive, particularly in temporary endeavours like construction projects. However, while researchers have examined blockchain system structure among inter-firm organizations in construction, little research has considered the data redundancy of these systems. This res...

The use of blockchain technology in construction engineering and management (CEM) is increasing, yet current presentations of blockchain-based data management processes (DMP) are considered too primitive to encourage the technology’s broader diffusion in CEM. This research aims to provide a set of guidelines for visualizing blockchain-based DMP in...

Protecting intellectual property rights (IPR) in the architecture, engineering, and construction (AEC) industry is a long-standing challenge. In the collaborative digital environments, where multiple professionals use digital platforms such as building information modelling to collaborate on a building design, this challenge has intensified. This r...

This research aims to develop a deployable blockchain smart contract and oracle model for automated and transparent customs compliance checking in cross-border construction logistics. A scene analysis is conducted to extract requirements, and then a blockchain-enabled model is prototyped and tested in two case studies. We find that the prototype is...

Purpose This research aims to develop a blockchain smart contract–enabled framework to resolve power imbalance problems in construction payment. Design/methodology/approach This research adopts a design science research method to develop the blockchain smart contract–enabled framework. The authors then develop a prototype system. Finally, the auth...

Reliable and accurate information is crucial for decision making in construction projects. However, stakeholders driven by profit have the potential to manipulate information, compromising information authentication and integrity (IAI). Even worse, digitization in the construction industry has made IAI extremely volatile, e.g., by easily copying, m...

Modularization has become an important strategy to support current enterprises in gaining an edge in a competitive market. The construction industry is also continuing to explore the same trend. Modular integrated construction (MiC) in Hong Kong is one of these notable examples. MiC has been vigorously promoted by the Hong Kong government as an inn...

Accidents due to the use of construction equipment are one of the leading causes of serious injuries in the construction industry. The supervision of construction equipment is an essential procedure to ensure the safety of users in the usage stage by requiring appropriate and timely maintenance. However, the following two issues must be tackled to...

The outbreak of SARS-CoV-2 (COVID-19) in high-density cities lead to the deficiency of healthcare facilities to receive patients. Emergent Modular Construction (EMC) has manifested high efficiency in project construction, considering cost, sustainability, quality control, and schedule management. EMC has been applied in natural catastrophes, or oth...

While client-server and peer-to-peer network models have both been explored as a means of transferring data, the literature is yet to thoroughly document their respective strengths and weaknesses, particularly in project settings. This study aims to address this knowledge gap by conducting a semi-hypothetical experiment to examine the strengths and...

Ensuring material provenance is widely considered a promising solution to the persistent issues related to material fraudulence in the construction industry. However, current strategies of managing construction logistics and supply chain perplex provenance tracing and tracking by adding too many intermediaries and using low technologies. By learnin...

The waste material passport (WMP) has been proposed for construction waste material (CWM) cross-border trading to reduce information asymmetry between parties. However, a major concern is that such WMPs are not issued by authorities that can guarantee authentication. This research aims to develop a blockchain non-fungible token (NFT)-enabled WMP. B...

[Free PDF:🌐 https://frankxue.com/#publications 🌐] Advanced information technologies such as the In-ternet of Things (IoT) and Modular Construction (MC) bring new potentials to the construction industry. The trustworthiness is critical for MC quality assurance (QA), particularly in the offshore manufacture stage. The emerging blockchain technology w...

Numerous studies have demonstrated that the climate of cities and human settlements can affect building performance and human comfort. Historically, ambient data were collected through on-site measurements or simulations using physical models. Nowadays, with the advancement of data-based techniques and computing resources, especially Building Infor...

It is an unfortunate fact that, in pursuing occupational safety and health (OSH), privacy as a core value is often traded away. Blockchain technology has unexplored potential in tackling this dilemma through its cryptography, decentralization, and consensus mechanisms. This research aims to develop a blockchain-enabled framework to balance privacy...

The construction industry is encountering management issues, such as low efficiency, inadequate regulation and enforcement, absence of good coordination and knowledge sharing, and ineffective billing practices. Blockchain is also gaining momentum as a part of the digital transformation in the construction area and response to various challenges. Si...

A smart contract is a protocol that can self-execute when predefined conditions are met. This new technology is considered destructive and can transfer the construction industry. In Blockchain 2.0, the combined use of blockchain and smart contracts allows users to express business logic to achieve more advanced transactions. This research aims to c...

Sustainability in cross-border logistics requires issues such as fragmented management to be addressed. Particular challenges arise in cross-border logistics in modular construction (CLMC) because supervision is inefficient, primarily due to continued use of paper-based documentation. Researchers have developed digital platforms that integrate accu...

Inspection is a crucial construction process ensuring that building works and workers comply with prescribed codes, standards, and building progress. Traditional inspection is characterized by physical effort and onerous paperwork. The emergence of e-inspection 1.0 has meant the adoption of computerized means to ease the burden of paperwork, though...

Onsite assembly is a critical stage for modular construction. Its success or failure depends on accurate information sharing among numerous stakeholders who, unfortunately, often possess unsynchronized information. Owing to its decentralized consensus mechanism, blockchain has the potential to improve information-sharing accuracy on construction si...

Configuring a trustworthy Internet of Things (IoT)-enabled building information modeling (BIM) platform (IBP) is significant for modular construction to ensure transparency, traceability, and immutability throughout its fragmented supply chain management. However, most current IBPs are designed adopting a centralized system architecture, which fail...

Traditionally, construction managers were considered more experienced in project management than off-site production management, although the latter is gaining importance with the renaissance of modular construction worldwide. Various Internet of Things (IoT)-enabled Building Information Modelling (BIM) platforms have been developed to facilitate p...

This research aims to develop a multi-criteria decision matrix (MCDM) for project management (PM) professionals, which will support blockchain type selection, evaluate blockchain platforms, and plan blockchain systems. The MCDM is substantiated through a case study that includes a questionnaire and an illustrative example pertinent to the construct...

Late payment, and indeed no payment, is a rampant and chronic problem that has plagued the global construction industry for too long. Recent development in blockchain technology, particularly its smart contract, seems to provide a new opportunity to improve this old problem. However, this opportunity is largely unexploited. This study aims to devel...

A smart contract is a protocol that can self-execute when predefined conditions are met. This new technology is considered destructive and can transfer the construction industry. In Blockchain 2.0, the combined use of blockchain and smart contracts allows users to express business logic to achieve more advanced transactions. This research aims to c...

Building information modeling (BIM) has been widely used as the information hub for collaborations and has increasingly been mandated in the construction industry over the past decade. From the information perspective, there have been three BIM-based exchange paradigms: (i) file-based, (ii) cloud-based, and (iii) blockchain-based. Digital twin (DT)...

Blockchain can be regarded as a distributed database that records transaction data in a shared manner. This new technology is considered destructive and can transfer many data-driven industries, including construction. On the other hand, as one of the necessary measures to ensure quality, progress, and safety, construction inspection records still...

Trust has been acknowledged as an essential element of inter-organizational relationships, and it also affects the efficiency of work operations. Although the construction industry has been pursuing trust for a long time, trust is still lacking and fragile among stakeholders. Blockchain seems to provide a promising approach through which trust can...

Blockchain technology has attracted the interest of the global construction industry for its potential to enhance the transparency, traceability, and immutability of construction data and enables collaboration and trust throughout the supply chain. However, such potential cannot be achieved without blockchain "oracles" needed to bridge the on-chain...

Blockchain technology has been explored for governmental supervision of construction work (GSCW) due to its merits of traceability, immutability, and transparency. However, its decentralized nature is seemingly incompatible with GSCW, which is a type of centralized governance per se. This research aims to find a network topology with a proper level...

By manufacturing housing products off-site and assembling on-site, modular construction can significantly improve the housing supply efficiency, particularly for high-density cities. However, off-site modular housing production (OMHP) supervision is currently problematic. The production parties are reluctant to provide detailed private data; Even w...

Building Information Models (BIMs) and City Information Models (CIMs) have flourished in building and urban studies independently over the past decade. Semantic enrichment is an indispensable process that adds new semantics such as geometric, non-geometric, and topological information into existing BIMs or CIMs to enable multidisciplinary applicati...

Blockchain can be regarded as a distributed database that records transaction data in a shared manner. This new technology is considered destructive and can transfer many data-driven industries, including construction. On the other hand, as one of the necessary measures to ensure quality, progress, and safety, construction inspection records still...