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Viet Nguyen
Faculty of Bridges and Highways Engineering, National University of Civil Engineering, Hanoi 100000, Vietnam

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Journal article
Published: 26 May 2021 in Sustainability
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Damage in reinforced concrete structures is frequently caused by reinforcement corrosion due to carbonation. Although a wide range of literature contributed to the concrete carbonation consisting of experimental investigations and numerical simulations, research work on a complete numerical model for concrete carbonation prediction with integrated climatic variables (e.g., temperature, relative humidity) is still a challenge. The present paper aims to propose an advanced numerical model to simulate the penetration of carbon dioxide and moisture, diffusion of calcium ions, heat transfer, and porosity modification in concrete material using COMSOL Multiphysics software. Three coupled mass conservation equations of calcium, water, and carbon dioxide are solved together with additional equations regarding the heat transfer, variation of porosity, and content of portlandite and other hydrates and calcites. In this study, the actual temporal variabilities of temperature and relative humidity in Toulouse, France, are used as a case study. The predicted results of portlandite profiles and carbonation depth are compared with the experimental data and discussed to identify the effect of climatic variables on the concrete carbonation.

ACS Style

Viet Ngo; Ngoc Nguyen; Frédéric Duprat; Ngoc Vu; Viet Nguyen. Climatic Issue in an Advanced Numerical Modeling of Concrete Carbonation. Sustainability 2021, 13, 5994 .

AMA Style

Viet Ngo, Ngoc Nguyen, Frédéric Duprat, Ngoc Vu, Viet Nguyen. Climatic Issue in an Advanced Numerical Modeling of Concrete Carbonation. Sustainability. 2021; 13 (11):5994.

Chicago/Turabian Style

Viet Ngo; Ngoc Nguyen; Frédéric Duprat; Ngoc Vu; Viet Nguyen. 2021. "Climatic Issue in an Advanced Numerical Modeling of Concrete Carbonation." Sustainability 13, no. 11: 5994.

Journal article
Published: 30 September 2020 in Sustainability
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This study seeks to better understand the determinants of green building technology (GBT) adoption intention of construction developers in developing countries. In order to address these objectives, this study integrates the Diffusion of Innovation theory, the theory of Resource-based View, and the Resource Dependence Theory to analyze and construct the theoretical model of developers’ intentions to adopt GBTs from three perspectives, namely, technological, organizational, and environmental. The model was tested using survey data collected from 142 experienced managers in Vietnam. Data analysis was performed by SEM using the partial least squares (PLS) approach. The findings show that perceived GBT advantages, perceived GBT disadvantages, top management leadership, government support, project partners’ green building readiness, and social demand of green buildings are the significant factors that affect GBT adoption intention by developers. However, organizational GBT resource and GBT market readiness have no significant effect on developers’ GBT adoption intention. Theoretical and practical implications and limitations of the research are discussed, and suggestions for future research are also proposed.

ACS Style

Quangdung Tran; Sajjad Nazir; Tu-Hieu Nguyen; Ngoc-Khoa Ho; Tuan-Hai Dinh; Viet-Phuong Nguyen; Manh-Hung Nguyen; Quoc-Khanh Phan; The-Son Kieu. Empirical Examination of Factors Influencing the Adoption of Green Building Technologies: The Perspective of Construction Developers in Developing Economies. Sustainability 2020, 12, 8067 .

AMA Style

Quangdung Tran, Sajjad Nazir, Tu-Hieu Nguyen, Ngoc-Khoa Ho, Tuan-Hai Dinh, Viet-Phuong Nguyen, Manh-Hung Nguyen, Quoc-Khanh Phan, The-Son Kieu. Empirical Examination of Factors Influencing the Adoption of Green Building Technologies: The Perspective of Construction Developers in Developing Economies. Sustainability. 2020; 12 (19):8067.

Chicago/Turabian Style

Quangdung Tran; Sajjad Nazir; Tu-Hieu Nguyen; Ngoc-Khoa Ho; Tuan-Hai Dinh; Viet-Phuong Nguyen; Manh-Hung Nguyen; Quoc-Khanh Phan; The-Son Kieu. 2020. "Empirical Examination of Factors Influencing the Adoption of Green Building Technologies: The Perspective of Construction Developers in Developing Economies." Sustainability 12, no. 19: 8067.