scholarly journals Determining potential end of service life demolition waste of residential houses in Canada

2021 ◽  
Author(s):  
Tofayel Hussain
Keyword(s):  
Service Life ◽  
Natural Resources ◽  
Wood Waste ◽  
Housing Construction ◽  
Residential Construction ◽  
Waste Generation ◽  
Single Family ◽  
Residential Housing ◽  
Demolition Waste ◽  
Concrete Masonry

Construction and demolition (C & D) waste generation is identified as an environmental topic of concern globally. Canadian Construction Association (CCA), Natural Resources Canada (NRCan) and other researchers have identified wood waste as the key material to focus on in residential housing construction. With this point in mind, it seems prudent to identify waste generation at the demolition stage of houses. Two low-rise single-family detached houses were evaluated to determine their potential demolition waste generation. Wood, concrete, masonry (brick), gypsum and asphalt waste generation was measured, quantified and ranked accordingly. The results determined concrete had the highest waste generation potential representing around 60% (kg) at the demolition stage. The findings are contrary to the wood waste focus in residential construction. Therefore, the findings suggest more focus needs to be placed on concrete use in residential construction moving forward, as much as wood has been in most recent decades.

scholarly journals Determining potential end of service life demolition waste of residential houses in Canada

2021 ◽  
Author(s):  
Tofayel Hussain
Keyword(s):  
Service Life ◽  
Natural Resources ◽  
Wood Waste ◽  
Housing Construction ◽  
Residential Construction ◽  
Waste Generation ◽  
Single Family ◽  
Residential Housing ◽  
Demolition Waste ◽  
Concrete Masonry

Construction and demolition (C & D) waste generation is identified as an environmental topic of concern globally. Canadian Construction Association (CCA), Natural Resources Canada (NRCan) and other researchers have identified wood waste as the key material to focus on in residential housing construction. With this point in mind, it seems prudent to identify waste generation at the demolition stage of houses. Two low-rise single-family detached houses were evaluated to determine their potential demolition waste generation. Wood, concrete, masonry (brick), gypsum and asphalt waste generation was measured, quantified and ranked accordingly. The results determined concrete had the highest waste generation potential representing around 60% (kg) at the demolition stage. The findings are contrary to the wood waste focus in residential construction. Therefore, the findings suggest more focus needs to be placed on concrete use in residential construction moving forward, as much as wood has been in most recent decades.

scholarly journals Concrete performance evaluation of coarse aggregate replacement by civil construction waste

2020 ◽  
Vol 24 ◽  
pp. e52
Author(s):  
Juliane Patricia Oliveira ◽  
Carlos Henrique Dos Santos ◽  
Maria Lúcia Okumura ◽  
Natália Ueda Yamaguchi
Keyword(s):  
Natural Resources ◽  
Coarse Aggregate ◽  
Construction And Demolition Waste ◽  
Recycled Aggregate ◽  
Recycled Aggregates ◽  
Construction Sector ◽  
Waste Generation ◽  
Demolition Waste ◽  
The Sustainable Development ◽  
Recycled Coarse Aggregate

The construction sector is considered a major generator of environmental impacts due to the high consumption of natural resources and waste generation. Thus, this article aims to evaluate the performance of a concrete produced by the partial and total replacement of natural coarse aggregate by recycled coarse aggregate, derived from the concrete residue of buildings and demolitions. The study was made by comparing the compressive strength and absorption of three different concrete traces, keeping the water/cement factor of 0.60 and changing only the proportions of recycled coarse aggregate between 0%, 50% and 100%. The results showed that the higher the percentage of substitution, the greater the water absorption and the lower the resistance results concrete compression. This result was obtained due to the lighter characteristic of the recycled aggregate compared to the natural aggregate. It was concluded that the concrete produced with recycled aggregates could be used in nonstructural functions, giving an adequate destination to the construction and demolition waste and consequently reducing the extraction and consumption of natural resources and contributing for the sustainable development.

scholarly journals Incorporation of recycled aggregates from construction and demolition waste in paver blocks

2020 ◽  
Vol 13 (4) ◽  
Author(s):  
Cinthia Maia Pederneiras ◽  
Maria Del Pilar Durante ◽  
Ênio Fernandes Amorim ◽  
Ruan Landolfo da Silva Ferreira
Keyword(s):  
Natural Resources ◽  
Mechanical Strength ◽  
Reference Sample ◽  
Construction And Demolition Waste ◽  
Recycled Aggregates ◽  
World Population ◽  
Fine Aggregate ◽  
Demolition Waste ◽  
Concrete Blocks ◽  
Modified Block

ABSTRACT: The consumption of natural resources and energy increased proportionally with the growth of the world population and its economic level. There was an increasing exponential consumption of natural resources, which implied an increase in environmental impacts. The construction sector is responsible for a very significant production of construction and demolition waste (CDW). Thus, there is a concern in search of a more sustainable final disposal. Many studies have been investigated the development of new materials with the incorporation of recycled aggregates from CDW. This paper presents a study of performance evaluation of concrete blocks produced with CDW. For that purpose, an experimental campaign was performed, including a characterization of the aggregates used. The incorporation of 100% of fine and coarse recycled aggregates. The mixtures were designed according to the condition of the aggregate (dry, washed or saturated). The performance of these blocks was evaluated in terms of mechanical strength and water absorption. Some additional tests were also performed to deeper analyze of the microstructure of these blocks. To assess the durability of the concrete blocks, a full-scale road was built. The results were very positive, since there were no significant differences between the modified concrete blocks and the reference sample (0% of the CDW). The modified block with fine aggregate presented the best performance of all the blocks, concerning mechanical strength. In addition, the performance of concrete blocks with washed recycled aggregates had a better performance compared to the others. The results obtained were satisfactory for the application of the blocks in the streets with low movement and low load.

Selecting Demolition Waste Materials Disposal Alternatives Using Fuzzy TOPSIS Technique

2020 ◽  
pp. 730-750
Author(s):  
Mohamed Marzouk ◽  
Mohamed Abd El-Razek
Keyword(s):  
Decision Making ◽  
Developing Countries ◽  
Natural Resources ◽  
Fuzzy Topsis ◽  
Waste Materials ◽  
Multi Criteria Decision Making ◽  
Demolition Waste ◽  
Construction And Demolition Wastes ◽  
Topsis Technique ◽  
Selection Of

This article describes how in developing countries, millions of tons of construction and demolition wastes (CDWs) are lost every year due to lack of knowledge of recycling significance and/or procedures. Despite the high value of CDWs, high percentage of this waste is either dumped illegally or disposed in the landfills. Disposal methods should consider saving natural resources and maintaining the environmental conditions through maximizing the value of CDWs. This article aims at choosing the most sustainable disposal alternative using Multi-Criteria Decision Making (MCDM) Process, considering several sustainability measure indicators. The research introduces a list containing the most relevant and significant sustainable indicators that affect the selection of alternative for disposal of CDWs. Then, fuzzy TOPSIS technique is applied considering the significant indicators on each alternative to rank and choose the best alternative for disposal of CDWs.

Prediction of large-scale demolition waste generation during urban renewal: A hybrid trilogy method

2019 ◽  
Vol 89 ◽  
pp. 1-9 ◽  
Author(s):  
Bo Yu ◽  
Jiayuan Wang ◽  
Jie Li ◽  
Jingrong Zhang ◽  
Yani Lai ◽  
...  
Keyword(s):  
Urban Renewal ◽  
Large Scale ◽  
Waste Generation ◽  
Demolition Waste

An empirical study of construction and demolition waste generation and implication of recycling

2019 ◽  
Vol 95 ◽  
pp. 10-21 ◽  
Author(s):  
Rashidul Islam ◽  
Tasnia Hassan Nazifa ◽  
Adhi Yuniarto ◽  
A.S.M. Shanawaz Uddin ◽  
Salmiati Salmiati ◽  
...  
Keyword(s):  
Empirical Study ◽  
Construction And Demolition Waste ◽  
Waste Generation ◽  
Demolition Waste

Selecting Demolition Waste Materials Disposal Alternatives Using Fuzzy TOPSIS Technique

2017 ◽  
Vol 6 (2) ◽  
pp. 38-57 ◽  
Author(s):  
Mohamed Marzouk ◽  
Mohamed Abd El-Razek
Keyword(s):  
Decision Making ◽  
Developing Countries ◽  
Natural Resources ◽  
Fuzzy Topsis ◽  
Waste Materials ◽  
Multi Criteria Decision Making ◽  
Demolition Waste ◽  
Construction And Demolition Wastes ◽  
Topsis Technique ◽  
Selection Of

This article describes how in developing countries, millions of tons of construction and demolition wastes (CDWs) are lost every year due to lack of knowledge of recycling significance and/or procedures. Despite the high value of CDWs, high percentage of this waste is either dumped illegally or disposed in the landfills. Disposal methods should consider saving natural resources and maintaining the environmental conditions through maximizing the value of CDWs. This article aims at choosing the most sustainable disposal alternative using Multi-Criteria Decision Making (MCDM) Process, considering several sustainability measure indicators. The research introduces a list containing the most relevant and significant sustainable indicators that affect the selection of alternative for disposal of CDWs. Then, fuzzy TOPSIS technique is applied considering the significant indicators on each alternative to rank and choose the best alternative for disposal of CDWs.

scholarly journals Organizational and economic-and-legal problems of the transition from the equity residential construction to project financing

2019 ◽  
Vol 265 ◽  
pp. 07035
Author(s):  
Arkady Larionov ◽  
Magomed Omarov ◽  
Ilya Kostusenko
Keyword(s):  
National Economy ◽  
Housing Construction ◽  
Residential Construction ◽  
Project Financing ◽  
Economic Interests ◽  
Regional Market ◽  
Legal Problems ◽  
Economic Methods ◽  
Further Development ◽  
Governmental Control

The paper focuses on the features and specificity of the regional market of residential construction in the Moscow region. The authors claim and prove that the solution of complex modern problems of residential construction and the creation of conditions for its further development is directly related to the reasonable application of the existing repertoire of organizational and economic methods of governmental control over this national economy sector. The article represents the authors’ opinion on implementing the new laws on equity housing construction that have come into force and their consequences in terms of the well-balanced protection of the rights of citizens participating in equity construction and the economic interests of developers. A possible scenario of premature abandonment of equity construction and the transition to project financing is described.

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