On-site Recycling of the Construction Demolition Wastes: Feasibility and Sustainability

Alkhawaldeh, Ayah; Betoush, Nour; Alkhawaldeh, Mohammad; Alhassan, Mohammad; Amaireh, Layla

doi:10.1007/978-3-031-42455-7_2

Cited by 4 publications

References 17 publications

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Life Cycle Assessment and Sustainability Characteristics of Built Environment Systems

Alkhawaldeh,

Betoush,

Sawalha

et al. 2024

Lecture Notes in Civil Engineering

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The sustainable built environment concept has recently gained enormous attention from academic and industrial organizations. The growth in climate-related disasters and pandemics, continuing difficulties in the energy sector, and consumer awareness regarding resources’ conservation and sustainability are considered the driving factors influencing participants toward supporting sustainable engineering applications. Furthermore, numerous professional standards and requirements for implementing and rating sustainable practices have been generated, such as life cycle assessment (LCA), cost analysis, project development (i.e., from planning through construction up to demolition), recycling, material preservation, and utilizing reusable materials. The LCA is a great method for examining and integrating a wide variety of environmental elements to provide a comprehensive picture of system sustainability. The research presented in this study covered significant environmental elements that are essential to deciding between two or more choices and improving the system. This research compared the OPC and AABC based on CO2 emissions. The results showed that the AABC produces positive sustainability outcomes in terms of CO2 emissions. The AABC emits substantially less CO2 than the OPC, indicating that it is preferable for greenhouse buildings.

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Life Cycle Assessment and Sustainability Characteristics of Built Environment Systems

Alkhawaldeh,

Betoush,

Sawalha

et al. 2024

Lecture Notes in Civil Engineering

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Properties of fiber incorporated concrete blocks manufactured using recycled aggregates

Prashanth,

Lohith,

et al. 2024

Low-carbon Mater. Green Constr.

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The construction and demolition industry generates a significant quantity of concrete waste, presenting an environmental challenge. The concrete waste generated can be processed to produce Recycled Aggregates (RA) of various sizes. Utilization of Recycled Aggregates (RA) as a substitute to conventional aggregates in concrete has captured considerable attention in the past few years, owing to its promising environmental and economic advantages. However, the combined utilization of recycled fine and coarse aggregate in the production of concrete for low-strength application has not been adequately explored. In this article, an attempt is made to investigate the characteristics of concrete blocks made with RA and polypropylene fiber (PF) are investigated for different cement content. Cement and PF content varied from 8 to 12% and 0% to 2% respectively in production of concrete blocks using Recycled Fine Aggregates (RFA) and Recycled Coarse Aggregates (RCA) at different replacement intervals. Water absorption of blocks manufactured across all replacement intervals of RA was less than 10%. Blocks containing 75% RFA and 25% RCA resulted in improved compressive strength of the order more than 3.8 MPa. Rate of improvement in compressive strength of block was 11% to 20% and 6.5% to 8.2% when the fiber dosage was increased from 0.5% to 1% and 1% to 2% respectively. The optimal fiber dosage was found to be 1%, beyond which no notable improvement in mechanical properties of blocks was observed. Use of RA in concrete blocks reduced embodied energy by 19% to 24% for varying cement content from 8 – 12%. Cost of blocks was found to be reduced by 10 – 15% when made with PF dosage of 0 to 2% with 8% cement content.

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Harmonizing smart technologies with building resilience and sustainable built environment systems

Alhassan,

Alkhawaldeh,

Betoush

et al. 2024

Results in Engineering

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On-site Recycling of the Construction Demolition Wastes: Feasibility and Sustainability

Cited by 4 publications

References 17 publications

Life Cycle Assessment and Sustainability Characteristics of Built Environment Systems

Life Cycle Assessment and Sustainability Characteristics of Built Environment Systems

Properties of fiber incorporated concrete blocks manufactured using recycled aggregates

Harmonizing smart technologies with building resilience and sustainable built environment systems

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