Quantifying materials waste in the Egyptian construction industry: A critical analysis of rates and factors

Daoud, Ahmed Osama; Othman, Ayman Ahmed Ezzat; Ebohon, Obas John; Bayyati, Ali

doi:10.1016/j.asej.2021.02.039

Cited by 32 publications

(16 citation statements)

References 13 publications

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“…The overall Cronbach's alpha coefficient for the pilot sample was determined to be .93. according to Daoud et al (2021aDaoud et al ( , 2021b, this value indicates excellent consistency.…”

Section: Checking Responses Consistency and Reliabilitymentioning

confidence: 77%

Identifying and assessing modular construction implementation barriers in developing nations for sustainable building development

Ali

Kineber

Elyamany

et al. 2023

Sustainable Development

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The construction sector is one of the largest sectors globally, and it significantly affects countries' economies. Modular construction (MC) is a building process in which modules are fabricated in a factory and then installed on‐site. MC is becoming an integral aspect of the construction sector in developed countries due to its notable benefits in improving sustainability and sustainable development. However, there are various barriers that might decrease MC adoption. This study aims to develop an MC adoption model by investigating the relationship between overcoming MC adoption barriers (MCABs) and overall sustainable success (OSS) for residential projects in developing countries. To accomplish this, 120 Egyptian building professionals responded to the conducted questionnaire. Subsequently, partial least square structural equation modelling (PLS‐SEM) was used to determine the barriers and examine the relationships between overcoming MCABs and OSS. The results showed a moderate association, with overcoming the MCABs contributing 44.7% to the OSS of the residential projects. Moreover, the correlation between overcoming MCABs and OSS is substantial, as demonstrated by the β value path coefficient, which equals .669. The findings can be used as a benchmark for decision‐makers to explore the main barriers to adopting MC in developing countries and achieving OSS in their residential projects.

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“…The overall Cronbach's alpha coefficient for the pilot sample was determined to be .93. according to Daoud et al (2021aDaoud et al ( , 2021b, this value indicates excellent consistency.…”

Section: Checking Responses Consistency and Reliabilitymentioning

confidence: 77%

Identifying and assessing modular construction implementation barriers in developing nations for sustainable building development

Ali

Kineber

Elyamany

et al. 2023

Sustainable Development

Self Cite

View full text Add to dashboard Cite

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“…This type provides an improved alternative solution that blends traditional and modern technology, allowing the adoption of natural resources, optimizing the use of steel and cement, adding upper stories, improving aesthetics, and ensuring stability (Keswani, 1997;Jain, 2000;ICAEN, 2004;Kumar and Maheswari, 2019). EH utilized funicular shells made of bricks and waste stone/ceramic, a solution that could significantly contribute to the issue of waste in Egyptian, as well as other countries', building sector (Daoud et al, 2021). This roof was adopted by several building centers in India (mainly Anangpur Building Center) (Keswani, 1997).…”

Section: Walling Alternativementioning

confidence: 99%

Cost-effectiveness and affordability evaluation of a residential prototype built with compressed earth bricks, hybrid roofs and palm midribs

Mohamed

Mahmoud

2023

Front. Built Environ.

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As a response to rising housing prices and the high cost of materials in the building and construction industry, a rural prototype house (the Ecofordable House) was built with alternative technologies. The house is located in the western desert zone of Giza, Egypt, and features enhanced vernacular technologies with local materials. Interlocking compressed stabilized earth brick walls, partially reinforced, jack arch and funicular shell roofs, and date palm midribs were employed in an attempt to reduce the usage of steel, fired bricks, cement, and imported wood. The present research evaluates the house’s construction cost-effectiveness and affordability through detailed real-world data and comparisons of material quantities, labor, and costs with those of conventional methods. The “price-to-income ratio” is used as an indicator of affordability. According to the findings, walls cut costs by half, roofs by a quarter, and midribs by two-thirds; the alternatives combined saved 45%, and the house saved a quarter of the cost after adding common expenses. Moreover, less than one-third of steel, fired bricks, and cement were utilized. In the Egyptian context of government-built houses, the prototype would be affordable for most Egyptian income brackets while the conventional house was expensive for the lowest three. The findings provide empirical support for the economic advantages of enhanced vernacular technologies as alternatives and address residential affordability in similar contexts.

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“…The material selection process in the construction industry, particularly in large-scale buildings, has far-reaching effects on various aspects of the building life cycle and environment; several researchers have proposed distinctive approaches at various scopes of projects that are useful in reducing the amount of construction waste. In 2021, classification of buildings based on their use was presented to find effective factors in material waste generation in the Egypt construction industry so scale of projects, knowledge of managers and labors, or even users, lack of law, and an inappropriate supply chain were introduced as main WGF in construction (Daoud et al, 2021). Most significantly, selecting appropriate materials may save up to 50% on project costs while also reducing construction waste (Ajayi et al, 2017b;Akanmu et al, 2015;Khanh and Kim, 2015).…”

Section: Waste Generation Factors In the Project Life Cyclementioning

confidence: 99%

Identifying factors affecting waste production throughout the construction project life cycle and proposing BIM-based solutions

Amid

Noorzai

Golabchi

2022

TQM

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PurposeBecause the construction industry is one of the largest waste producers, understanding the primary reasons for waste production is essential. The goal of this study is to identify the major causes of waste production over the project life cycle in Iran's construction industry and to propose effective solutions based on modern technologies like BIM.Design/methodology/approachAfter identifying the primary causes of construction and demolition waste production through interviews and literature analysis, solutions based on building information modeling (BIM) were provided. Then, using questionnaires and exploratory factor analysis (EFA), the areas impacting waste reduction were found.FindingsThe findings suggest that “prefabrication” is the best approach for improving time and quality, while “detection and prediction of errors in the design and construction phases” is the most cost-effective technique for addressing cost and environmental issues.Originality/valueCost, time, quality and environmental concerns may all be influenced by effective waste management throughout the project life cycle. Furthermore, utilizing state-of-the-art technologies has far-reaching implications for reducing material waste, resulting in more environmental-friendly construction.

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Quantifying materials waste in the Egyptian construction industry: A critical analysis of rates and factors

Cited by 32 publications

References 13 publications

Identifying and assessing modular construction implementation barriers in developing nations for sustainable building development

Identifying and assessing modular construction implementation barriers in developing nations for sustainable building development

Cost-effectiveness and affordability evaluation of a residential prototype built with compressed earth bricks, hybrid roofs and palm midribs

Identifying factors affecting waste production throughout the construction project life cycle and proposing BIM-based solutions

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