Methodology for the preparation of construction project waste management plans based on innovation and productive thinking processes: a case study in Chile

Aldana, Juan Camilo; Serpell, Alfredo

doi:10.4067/s0718-915x2016000100003

Cited by 8 publications

(4 citation statements)

References 26 publications

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“…Por otra parte, el sector de la construcción en el mundo contribuye en un 40% al total de emisiones de dióxido de carbono, 36% de energía (Huang et al, 2018), consume 50% de los recursos naturales, 16% del consumo de agua y produce 50% de los residuos totales generados por un país (Aldana y Serpell, 2016). En Chile las cifras no son tan distintas ya que el sector construcción aporta con un 33% al total de emisiones de dióxido de carbono (Kairies-Alvarado, 2021), consume 50% de los recursos naturales, 26% de energía, 6% del consumo de agua (MINVU, 2018) y produce el 37 % de los residuos totales generados en el país (Bravo et al, 2019).…”

Section: Rodríguez-grauunclassified

Metodología de aprendizaje colaborativo para la reutilización de residuos producidos durante de la formación académica universitaria

Rodríguez-Grau¹,

Valderrama-Ulloa²,

Sandoval³

et al. 2022

Form. Univ.

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Este estudio desarrolla una metodología de aprendizaje colaborativo que permite reutilizar residuos generados en la academia, sin comprometer los objetivos de aprendizaje, y fomentar en los estudiantes una actitud medioambiental responsable. La metodología tiene cinco subsecciones: 1) identificación de cursos que generan residuos físicos en los programas curriculares vigentes; 2) análisis de la factibilidad técnica de la reutilización de los desechos identificados; 3) diseño de la propuesta de intervención; 4) implementación de la metodología; y 5) evaluación de la metodología. Los resultados muestran que el aprendizaje colaborativo permite a los estudiantes de primer año aprender de la experiencia y conocimiento de estudiantes de los últimos años, impulsando una carga cognitiva mayor y más eficaz que el aprendizaje individual. Adicionalmente, se logró reutilizar el 80% de residuos generados en actividades prácticas de docencia. Se concluye que la metodología implementada concientiza a los estudiantes sobre problemáticas medioambientales (residuos) a los que se verán enfrentados cuando ya sean profesionales.

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Section: Rodríguez-grauunclassified

Metodología de aprendizaje colaborativo para la reutilización de residuos producidos durante de la formación académica universitaria

Rodríguez-Grau¹,

Valderrama-Ulloa²,

Sandoval³

et al. 2022

Form. Univ.

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“…In addition, the use of RCDW presents positive results from an environmental, technical and economic point of view (Awed et al, 2021;Beja et al, 2020;Arab et al, 2020;Tarbay et al, 2019). During the last years, instead of disposing of construction and demolition waste (CDW) in landfills, this material has been considered for replacing natural aggregates (Aldana & Serpell, 2016;Martinez et al, 2016). Sustainable pavements using recycled materials have become essential for maintaining natural resources, reducing potential environmental impacts, and improving the potential economic value of recycling (Dong et al, 2017).…”

Section: Brief State Of the Artmentioning

confidence: 99%

Construction and demolition waste as raw material in pavements layers

Silva¹,

Silva²,

Delgado³

et al. 2022

rdlc

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The proper management of demolition construction waste from the construction industry is an issue that has gained relevance over the last years in several research centers around the world and, in this context, researches on the potential of using construction and demolition waste to execute pavement layers have been stood out. The paper presented results of a research performed to evaluate the characteristics of the material produced by a waste treatment/beneficiation industrial plant. Tests to verify the suitability of the material as pavement subbase material were performed according Brazilian code - grain-size distribution composition, maximum characteristic dimension, shape particle index (SPI), contaminant percentage and sieving process. The results obtained indicated that the recycled aggregates investigated performed well in all the requirements of the reference standards used and only one correction, related to grain size distribution, was performed using a sieving process. It is important to highlight that the tests and analyses must be performed constantly when forming each aggregate batch, since the recycled aggregates are usually quite heterogeneous, with characteristics that may vary depending on the type of work, construction materials used or period of the year.

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“…We sought an idea from a professional with at least 20 years of working experience in construction management and who has participated in many construction projects in which he experienced construction first-hand information. [37,38] Time pressure [39,40] Difficulties for delivery vehicles accessing construction sites [41,42] 2 Transportation problem [43,44] Lack of supervision [45] Inefficient method of unloading [46,47] 3 Incorrect Procurement [48,49] Lack of on-site waste management plans [50,51] Insufficient protections during unloading [50,52] 4 Lack of design standards for reducing construction waste [53,54] Use of incorrect material requiring replacement [54,55] Waste resulting from cutting uneconomical shapes [56,57] 5 Low cost for construction waste disposal [58,59] Poor craftsmanship [60,61] Damage to materials on-site [62] 6…”

Section: Waste Reduction Hierarchy On 3r (Reduce Reuse and Recycle)mentioning

confidence: 99%

Modeling of 3R (Reduce, Reuse and Recycle) for Sustainable Construction Waste Reduction: A Partial Least Squares Structural Equation Modeling (PLS-SEM)

et al. 2021

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There is a lack of awareness and knowledge among the Malaysian construction industry about waste management reduction. Numerous nations worldwide have understood and have incorporated the concept of the 3R (reduce, reuse, and recycle) in waste management, and it has worked out well. This study investigated construction waste issues and developed a model for sustainable reduction by applying 3R using a partial least squares structural equation modeling PLS-SEM in Malaysia. The research methodology adopted the quantitative and qualitative approaches by sending a survey questionnaire to the relevant stakeholders to obtain their views or perceptions and interviewing an expert in the related field about waste reduction in the Malaysian construction industry. Three hundred thirty questionnaires were collected within six months of submission. The significant factors are determined using mean ranking for the reduce, reuse and recycle elements. Based on the results, the exploratory power of the study model is considered sustainable with R2 values of 0.83%. At the same time, the results of relationships between improving factors, policy-related factors, construction waste generated, and sustainable construction waste reduction were significant. Also, the findings revealed that the top factors for waste generation on reducing, reusing, and recycling are lack of design and documentation, and lack of guidance for effective construction waste-collecting. The paper will explore different and dynamic practices, such as recycling, reuse of construction waste management cost reduction, enabling stakeholders and managers to estimate and quantify the actual size of CWM costs and benefits for sustainable development goals.

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Methodology for the preparation of construction project waste management plans based on innovation and productive thinking processes: a case study in Chile

Cited by 8 publications

References 26 publications

Metodología de aprendizaje colaborativo para la reutilización de residuos producidos durante de la formación académica universitaria

Metodología de aprendizaje colaborativo para la reutilización de residuos producidos durante de la formación académica universitaria

Construction and demolition waste as raw material in pavements layers

Modeling of 3R (Reduce, Reuse and Recycle) for Sustainable Construction Waste Reduction: A Partial Least Squares Structural Equation Modeling (PLS-SEM)

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