A Review of Hazardous Compounds Present in Construction Waste Materials

AbstractA microwave off-gas system has been designed and fabricated to destroy or decompose emissions that arise from microwave treatment of printed circuit boards (PCBs). Preliminary gas chromatography data on emissions that resulted from combustion of PCBs showed significant decreases in the concentration and number of hazardous compounds detected in the off-gases after treatment. Investigations have continued in this area to demonstrate the reproducibility of the initial results and to determine critical control parameters for optimization of the system. The results of these studies are presented.

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Re: Purpose I reframing the purpose of construction waste

10.32920/ryerson.14646933.v1 ◽

2021 ◽

Author(s):

Mark Grimsrud

Keyword(s):

Public Space ◽

Public Spaces ◽

Waste Materials ◽

Material Flows ◽

Project Proposal ◽

Construction Waste ◽

The Public ◽

Material Sources ◽

Material Reuse

This thesis is an investigation into the extended use of waste in an architectural context. As resources are becoming depleted, new systems and techniques need to be developed to use what we have more effectively. By studying the material flows of urban construction, new purposes for construction waste can be revealed. This thesis challenges the current perceptions of waste to that of a nutrient. In order to showcase and frame waste as nutrient, the project proposal is for urban interventions built from waste to be placed throughout public spaces on Ryerson’s Campus. These interventions will inform the public on material reuse and at the same time increase the quality of public space. Typically when waste is used in architecture, the material sources are unique, this thesis questions that notion by investigating materials that are ubiquitous. This thesis strives to answer if and how architecture can add value to waste materials

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Evaluating the creep characteristics of recycled construction waste materials under saturated and dry condition

Arabian Journal of Geosciences ◽

10.1007/s12517-021-06545-1 ◽

2021 ◽

Vol 14 (3) ◽

Author(s):

Zhe Li ◽

Jia Yang ◽

Lulu Liu ◽

Shihao Yan

Keyword(s):

Waste Materials ◽

Construction Waste ◽

Creep Characteristics

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Re: Purpose I reframing the purpose of construction waste

10.32920/ryerson.14646933 ◽

2021 ◽

Author(s):

Mark Grimsrud

Keyword(s):

Public Space ◽

Public Spaces ◽

Waste Materials ◽

Material Flows ◽

Project Proposal ◽

Construction Waste ◽

The Public ◽

Material Sources ◽

Material Reuse

This thesis is an investigation into the extended use of waste in an architectural context. As resources are becoming depleted, new systems and techniques need to be developed to use what we have more effectively. By studying the material flows of urban construction, new purposes for construction waste can be revealed. This thesis challenges the current perceptions of waste to that of a nutrient. In order to showcase and frame waste as nutrient, the project proposal is for urban interventions built from waste to be placed throughout public spaces on Ryerson’s Campus. These interventions will inform the public on material reuse and at the same time increase the quality of public space. Typically when waste is used in architecture, the material sources are unique, this thesis questions that notion by investigating materials that are ubiquitous. This thesis strives to answer if and how architecture can add value to waste materials

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Evaluating Waste Material Among Construction Project: Identify Reason Waste and Suggestion Improvement Designer, Contractor and Client Practice

Journal of Korean Society of Environmental Engineers ◽

10.4491/ksee.2021.43.6.453 ◽

2021 ◽

Vol 43 (6) ◽

pp. 453-460

Author(s):

Ali Hussain

Keyword(s):

Construction Industry ◽

Field Observation ◽

Preventive Measures ◽

Construction Material ◽

Construction Project ◽

Waste Materials ◽

Construction Sites ◽

Construction Waste ◽

Managerial Practice ◽

Very High

Objectives : This research evaluate the level of construction waste materials in Iraq construction industry and compare construction material waste among three types of executing projects including specialist contractors, general building contractor and government department.Methods : The target materials in this study were brick, cement, sand, steel, gravel and thermo-stone. SPSS V24. Descriptive and inferential analyses were applied in this study.Results and Discussion : Field observation show that the highest percentage of waste was “Brick” with 15.21% followed by “Sand” with 12.52% and “Thermo-stone” with 12.02%. The lowest percentage of waste in Iraq construction project was “Steel” and “Cement” with 3.96% and 4% respectively. The results of a comparison between these three groups confirmed that for all types of construction project waste, the governmental project had the highest percentage (12.77%), special contractor (11.19%), a general building contractor (9.71%). The major waste from materials was handling with 31.9%, concrete construction with 28.09% and 24.26% the finishing.Conclusion The percentage of losses in the construction sites is very high compared to the permissible limit implementing inexpensive preventive measures, mostly related to managerial practice improvements.

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