Identifying causes for waste factors in high-rise building projects: A survey in Vietnam

Khanh, Ha Duy; Kim, Soo Yong

doi:10.1007/s12205-014-1327-z

Cited by 43 publications

(32 citation statements)

References 2 publications

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“…In addition, evidence suggests that design document usually lack some essential details required for successful construction exercise, thereby leaving the contractors with guesswork and subsequent waste generation (Begum et al, 2007). It is expected that adequate design information is provided in the design document to ensure that subsequent businesses are carried out with less waste (Khanh and Kim, 2014).…”

Section: Waste-efficient Design Documentationmentioning

confidence: 99%

Critical design factors for minimising waste in construction projects: A structural equation modelling approach

Ajayi

Oyedele

2018

Resources, Conservation and Recycling

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Notwithstanding that efforts made at the design stage of building construction projects have significant impacts on project outcome, most waste management efforts are usually focussed on construction stage. This is albeit the understanding that construction waste could be significantly reduced through design activities. This study investigates the underlying design measures that are capable of minimising waste generated by construction and demolition activities. Using exploratory sequential mixed method research, the study employs focus group discussions and thematic analysis at the exploratory phase, while questionnaire and structural equation modelling were used at the explanatory stage of the study. The study suggests that construction waste could be significantly reduced by designing for standard materials size and by designing for modern method of construction, thereby minimising waste due to breakage, materials leftover and other major causes of waste. The study further suggests that the design process and design documentation are key underlying measures for mitigating waste in construction projects. This could be enhanced through such critical success factors as a collaborative delivery process, which is characterised by early involvement of contractors and adequate coordination of design between various disciplines involved. Findings of this study would assist designers and other construction stakeholders in understanding the significant measures for designing out waste in construction projects.

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Section: Waste-efficient Design Documentationmentioning

confidence: 99%

Critical design factors for minimising waste in construction projects: A structural equation modelling approach

Ajayi

Oyedele

2018

Resources, Conservation and Recycling

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“…It is different from the push system, where materials are ordered in bulk, leading to over-stocking of materials and longer period of onsite storage. By using the pull process (JIT), the materials are only taken to site when they are needed, thereby preventing excessive storage of the materials (Khanh and Kim, 2014). It would as well prevent waste that could be due to stock piling, inefficient handling and materials leftover.…”

Section: Effective Materials Delivery Managementmentioning

confidence: 99%

Optimising material procurement for construction waste minimization: An exploration of success factors

Ajayi

Oyedele

Akinadé

et al. 2017

Sustainable Materials and Technologies

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Although construction waste occurs during the actual construction activities, there is an understanding that it is caused by activities and actions at design, materials procurement and construction stages of project delivery processes. This study investigates the material procurement and logistics measures for mitigating waste generated by construction activities. In a bid to explore the phenomenon from the perspectives of experts from the construction industry, this study used a combination of descriptive interpretive research and survey approach as its methodological framework.The study suggests that four features characterised waste efficient logistic and procurement process. These include suppliers' commitment to low waste measures, low waste purchase management, effective materials delivery management and waste efficient Bill of Quantity. In addition, the key requisite strategies for mitigating construction waste through materials procurement include commitment to take back scheme , procurement of waste efficient materials/technology and use of minimal packaging. The use of Just-in-Time (JIT) delivery system and prevention of over ordering are also important for mitigating waste through materials procurement processes. These implies that while the key measures are critical success factors for reducing waste through procurement process, the four established features are required of all procurement process. Measures through which the procurement process could enhance waste efficiency are further highlighted and discussed in the paper. Findings of this study could assist in understanding a set of measures that should be taken during materials procurement process, thereby corroborating waste management practices at design and construction stages of project delivery process.

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“…It includes five sections: (1) waste recognition and control, (2) frequency of waste occurrence, (3) level of impact on project performance cost, (4) causes of waste, and (5) personal information. In two previous studies in Vietnam construction industry, waste factors under lean production concepts were examined in terms of recognition, control ability, and causes (Khanh and Kim, 2014a); and level of impact of waste on project (Khanh and Kim, 2014b). In this paper, data gathered according to section II and V were analyzed to evaluate level of waste occurrence.…”

Section: Questionnaire Designmentioning

confidence: 99%

“…Because every project is unique in terms of design specification, delivery methods, administration, and participants, evaluation of performance has been a challenge for the construction industry for several decades (Luu et al, 2008). However, the wastes related to poor performance have not been well perceived by project managers (Khanh and Kim, 2014a). In addition, Alwi (2002) stressed that there was even no appropriate method developed to evaluate incidence of waste.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of waste occurrence level indicator in Vietnam construction industry

Khanh

Kim

2015

Engineering, Construction and Architectural Management

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Purpose – The purpose of this paper is to evaluate the waste occurrence level in the construction industry. It includes: first, identifying the mean value of frequency of waste occurrence according to respondents’ characteristics; second, identifying the main predictive factors for waste occurrence based on latent relationships between initial waste factors; and third, identifying the waste occurrence-level indicator (WOLI) for the construction industry based on the main waste measurement factors. Design/methodology/approach – A total of 19 waste factors were sorted from the literature review. A structured questionnaire was adopted to carry out the survey. The respondents are professionals who have much experience in construction and management of project. Shapiro-Wilk test of normality, Levene’s test, ANOVA test, and factor analysis technique were used to analyze the collected data. Findings – Frequency of waste occurrence in construction projects is quite high. There was no statistically and practically significant difference in means for waste occurrence between selected population categories. Based on factor analysis technique, there were five principal components extracted with 56.7 percent of total variance. The WOLI in the construction industry was found as 61.55 per the scale of 100. Research limitations/implications – The non-probability sampling was applied to collect data because of several certain limitations and difficulties. The number of data sets is relatively small. This study has only examined the frequency of waste occurrence without quantitative information. Practical implications – This is another study of waste factors in the construction industry, which is different from traditional waste studies. Originality/value – The contribution of this study to the practical project management is that a proposed evaluation sheet for WOLI could be applied for any construction firm.

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Identifying causes for waste factors in high-rise building projects: A survey in Vietnam

Cited by 43 publications

References 2 publications

Critical design factors for minimising waste in construction projects: A structural equation modelling approach

Critical design factors for minimising waste in construction projects: A structural equation modelling approach

Optimising material procurement for construction waste minimization: An exploration of success factors

Development of waste occurrence level indicator in Vietnam construction industry

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