The Development of a Decision Support Model for Eco-Friendly Material Selection in Vietnam

Abstract

In recent years, the awareness of sustainable construction has increasingly risen in countries around the world, with the main goal being to avoid depleting energy resources and raw materials and to greatly reduce carbon emissions. Therefore, the selection of eco-friendly building materials becomes a difficult task and choosing the best construction strategy is a complicated process. Most of the studies of the building material selection often focus on optimizing material-related green building scores with budget constraints based on the environmental impacts of those materials. However, these studies do not pay attention to the impact of sustainable materials on two important aspects of a project: The initial investment cost and the total labor-working days. Hence, this study developed a model that optimizes a material mix for buildings considering the building budget, total labor-working days, and material-related green building scores. A case study in Vietnam was conducted to illustrate the effectiveness of the proposed model. This proposed model provides a guidance for decision-makers in selecting approximate materials for buildings toward sustainability.Sustainability 2020, 12, 2769 4 of 19 of materials type, construction strategy, and the Lotus-based green building certification system in Vietnam (Figure 1). toward green buildings. 132 2. Problem Definition 133 2.1. Definition of the Optimization Problem. 134The problem in this study aims to build an eco-friendly material selection integrated platform 135 that will enable building owners and designers to optimize decision making through knowledge of 136 materials type, construction strategy, and the Lotus-based green building certification system in 137 Vietnam (Figure 1).

Development of Material Combination Model Considering Economics and Construction Efficiency for G-SEED Certification

“…As a material selection model similar to this study, there existed a local model in Vietnam and a model for the LEED score. Vietnam's model created a model that considers both the number of working days and the cost of materials to meet the minimum cost to receive a score for certification [22]. In the study of the model for selecting materials for LEED, a model was developed to derive a material proposal that satisfies the optimal material alternative for obtaining a score at a minimum cost [23,24].…”

“…In this way, many studies have been conducted through their methods on optimizing the cost of obtaining LEED scores and obtaining the least-cost materials for obtaining the scores [23,24]. In particular, in Vietnam, new factors are being considered, such as developing a model that considers labor according to materials [22]. However, researchers in Korea have so far primarily proposed improvements to the G-SEED certification system by analyzing and comparing the limitations of the current G-SEED system to those of foreign institutions.…”

Environmental Enhancement through High-Rise Building Refurbishment

“…Usage of the solar panel [3,4,7] 5. Usage of low VOC paint [39][40][41] 5. Usage of EnergyStar appliances [42] 4.…”

“…Effective air circulation can reduce emissions from VOC. Previous studies suggested the utilisation of VOC paint should be no more than 30 mg/L [40,41].…”

Utilization Of Construction And Demolition Waster And Environmental Management Practice In South East Asian Countries

“…In ASEAN, green material and green building are the common key terms to build a green environment and have sustainable construction. Green building is refer to utilization of green materials that are environmentally friendly to reduce resources and construction waste [4]. Green materials are renewable materials and the impact of material is considered throughout its life cycle [5].…”