Investigation of construction wastes generated in the Malaysian residential sector

2018 ◽  
Vol 36 (12) ◽  
pp. 1157-1165 ◽  
Author(s):  
Usman A Umar ◽  
Nasir Shafiq ◽  
Mohamed Hasnain Isa
Keyword(s):  
Construction Industry ◽  
Residential Buildings ◽  
Construction And Demolition Waste ◽  
Generation Process ◽  
Construction Sector ◽  
Waste Generation ◽  
Estimation Model ◽  
Demolition Waste ◽  
Construction Waste ◽  
Construction Procedure

The construction sector is among the fastest growing sectors in Malaysia; it consumes a vast amount of natural resources and produces a massive volume of construction and demolition waste. The waste is collected in a decentralised manner by sub-contracted companies. It is challenging to obtain reliable information on the amount of construction waste generated, because it is hard to determine its exact quantity and composition. Therefore, this study proposes a quantitative construction waste estimation model for residential buildings according to available data collected from the Construction Industry Development Board, Malaysia. In the development of this model, a theoretical investigation of the construction procedure and the construction waste generation process was conducted. The waste generated rate was determined as 25.79 kg m−2 for new residential constructions, which translates into about 553,406 t of anticipated waste annually.

scholarly journals Evaluation of Rules and regulation of Construction and Demolition Waste Management (CDWM) in India

2019 ◽  
Vol 8 (2S11) ◽  
pp. 2642-2644
Keyword(s):  
Environmental Impact ◽  
Waste Management ◽  
Construction Industry ◽  
Construction And Demolition Waste ◽  
Construction Sites ◽  
Demolition Waste ◽  
Construction Waste

The rules and regulations on waste management in the construction and demolition sector are analyzed corresponding to the present scenario of C&DW in India. C&D waste from construction sites has emerged as a significant threat to India because of its severe footprint on the environment. Vast quantities of construction waste will have unfavorable consequences on the surroundings if they are not properly managed. Therefore it is necessary to manage the development of C&DW by the experts within the construction industry. The approach represented is specialized in rules and regulations on waste management so that the environmental impact of construction activities can be minimized.

A Tentative Study on Quantity of Construction and Demolition Waste Generation in Tianjin

2014 ◽  
Vol 955-959 ◽  
pp. 2727-2730
Author(s):  
Juan Liu ◽  
Yong Hai Xue ◽  
Ya Nan Yang
Keyword(s):  
Urban Area ◽  
Construction And Demolition Waste ◽  
Waste Generation ◽  
Demolition Waste ◽  
Construction Waste ◽  
The City

This research makes a tentative study on generation of construction and demolition waste (CDW) in the city of Tianjin. Based on statistic data on construction area, amounts of construction waste, renewal transformation waste and decoration waste are estimated respectively, and summed up to the result of total CDW generation from 1996 to 2012. It shows that total CDW generation in urban area of Tianjin is up to 19.11 million tons in 2012.

Cement Artifact Produced with the Construction and Demolition Waste-CDW

2014 ◽  
Vol 600 ◽  
pp. 638-647
Author(s):  
Marina H.S. Santos ◽  
Albéria C. Albuquerque ◽  
Juzélia S. Costa
Keyword(s):  
Environmental Impact ◽  
Construction Industry ◽  
Reference Sample ◽  
Building Construction ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Technical Standards ◽  
Construction Waste ◽  
The Cost ◽  
Physical And Chemical

The project aims to use waste generated in the building construction industry as aggregate for use in artificial artifact of cement, replacing natural aggregate. We investigated the development of mechanical strength of bricks made ​​from construction waste, compared to a reference sample without residue. In this investigation were used mechanical, physical and chemical tests contained in current technical standards. The results demonstrated the viability of this product for masonry sealing. The feasibility of the product, reducing the cost and environmental impact justifies the relevance of the project.

scholarly journals GERAÇÃO DE RESÍDUOS NA CONSTRUÇÃO CIVIL

2021 ◽  
Vol 9 (209) ◽  
pp. 1-16
Author(s):  
Samira Mansur Monteiro de Barros
Keyword(s):  
Construction Industry ◽  
Raw Materials ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Public Places ◽  
Construction Waste ◽  
Final Destination ◽  
Negative Impacts ◽  
The One

The problems arising from construction and demolition waste have always been in our country. The civil construction industry is the sector that generates the most waste that impacts society and is the one that consumes the most raw materials. As a result, it is necessary and extremely important that there is a sustainable management of construction waste. The irregular dispositions of these residues cause many negative impacts to the environment, since they are often thrown in vacant lots, permanent preservation areas, roads and public places, harming the quality of life of the population. Recycling can generate a significant economic advantage in relation to the final destination both in regular deposits and mainly in relation to the irregular ones that cause so much damage to the environment. This study sought to collect information on the current situation on construction waste. And in order to be developed, the present work used bibliographic research in books, specialized magazines, periodicals, and electronic media. Concluding in the final considerations, in which vital points of the research are presented followed by the stimulations the continuity of the studies and the reflections on the generation of solid residues in the civil construction.

scholarly journals Quantitative Methods for Predicting Underground Construction Waste Considering Reuse and Recycling

2021 ◽  
Author(s):  
Rui Chen ◽  
Lanxin Li ◽  
Kai Yang ◽  
Fumin Ren ◽  
Chenggang Xi ◽  
...  
Keyword(s):  
Construction Industry ◽  
Quantitative Methods ◽  
Mass Conservation ◽  
Site Investigation ◽  
Construction And Demolition Waste ◽  
Infrastructure Projects ◽  
Underground Construction ◽  
Demolition Waste ◽  
Construction Waste ◽  
Recycling Potential

Abstract The construction industry has been greatly developed in the past few decades, especially in the extensive use of underground space. The increasing amount of waste (e.g., soil, sludge, and rock) generated in the underground construction constitutes an important part of construction and demolition waste (CDW) but the related problems are rarely addressed in an independent quantitative study. In order to facilitate recycling of underground construction waste (UCW), quantitative methods for predicting UCW are proposed based on mass conservation in this study. Through on-site investigation and literature review, the source characteristics of UCW and corresponding recycling potential are firstly analyzed. Secondly, the corresponding quantitative mothed is proposed for predicting each type of UCW according to the principle of mass conservation. Finally, the proposed quantitative methods are applied in two real underground infrastructure projects to verify the accuracy. The results show that the accuracy of quantitative methods for predicting shield sludge and engineering soil is 82.03%-95.79% and 94.49% respectively. In addition, detailed geological and geotechnical analysis is the key to accurate management of waste generated in underground civil and infrastructure projects. In both cases, underground construction produced a large amount of construction waste with great recycling potential. UCW can theoretically reach 100% recycling, and full reuse and recycling of UCW will bring huge economic value and be conducive to the sustainable development of the construction industry.

Value stream mapping for identification and assessment of material waste in construction: A case study

2019 ◽  
Vol 37 (8) ◽  
pp. 815-825 ◽  
Author(s):  
Aneetha Vilventhan ◽  
VG Ram ◽  
S Sugumaran
Keyword(s):  
Lean Construction ◽  
Construction And Demolition Waste ◽  
Value Stream Mapping ◽  
Waste Generation ◽  
Demolition Waste ◽  
Construction Waste ◽  
Value Stream ◽  
Waste Minimisation ◽  
Systematic Identification

Construction sites are plagued with numerous problems, such as improper planning and management, high amounts of waste generation and low awareness of waste reduction. Construction and demolition waste literature provides several best practises and prescriptive strategies that help minimise waste during construction. However, it lacks in the systematic identification and minimisation approach of all possibilities of waste. Therefore, studies focusing on principles and tools that help systematically analyse the inefficiencies of on-site processes leading to waste generation and philosophies addressing waste minimisation are necessary. As eliminating waste is one of the key lean principles, this article discusses the need and importance of integrating the lean construction with the construction and demolition waste management. This article aims to estimate and assess the causes of waste generation in a high-rise building construction through a case study in Chennai city (India) using value stream mapping, a key lean construction tool. Onsite monitoring and measurement were performed to quantify the amount of waste generated. A waste generation rate of 66.26 kg m−2 was identified, of which concrete, cement mortar and brick waste represented almost 90% of the total construction waste. Direct observation and interviews of site personnel were conducted to understand the causes of waste generation. A strategic framework has been proposed to improve construction and demolition waste minimisation depicting the synergy of combining lean construction principles with construction and demolition waste management strategies. The proposed framework helps in the systematic identification, assessment and minimisation of on-site construction waste generation.

scholarly journals Origins of Construction and Demolition Waste Generation in the Sri Lankan Construction Industry

2019 ◽  
Author(s):  
K.L.A.K.T. Liyanage ◽  
◽  
K.G.A.S. Waidyasekara ◽  
B.H. Mallawaarachchi ◽  
T.P.W.S.I. Pandithawatta ◽  
...  
Keyword(s):  
Construction Industry ◽  
Construction And Demolition Waste ◽  
Sri Lankan ◽  
Waste Generation ◽  
Demolition Waste

scholarly journals Identification of the Sources of Overall Waste Generation that Affects the Well Being of the Environment

2019 ◽  
Vol 8 (3) ◽  
pp. 6684-6687
Keyword(s):  
Well Being ◽  
Waste Reduction ◽  
Construction And Demolition Waste ◽  
Waste Generation ◽  
Demolition Waste ◽  
Gradual Decline ◽  
Construction Waste ◽  
Reduction Strategy ◽  
Knowledge Based ◽  
The World

In the old urban regions, major reconstruction operations are taking place on a fast scale throughout the world, which gives rise to large quantities of Construction and Demolition Waste (CDW). There is a gradual decline in available landfill space, while demand for quarry products is increasing. Because of its non-degradable features, CDW is a significant problem in many nations. Proper CDW management and recycling helps alleviate these issues. The contribution rates from various waste sources improve knowledge-based decision-making in the development of appropriate construction waste reduction strategy. This paper is focused on investigating the rate of recurrence and the seriousness of the contribution of waste sources that affect the well-being of the environment.

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 Quantitative Assessment of Construction and Demolition Waste

2019 ◽  
Vol 8 (12S) ◽  
pp. 1134-1138
Keyword(s):  
Construction Industry ◽  
Quantitative Assessment ◽  
Future Generation ◽  
Waste Reduction ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Construction Waste ◽  
Initial Stage ◽  
The Future ◽  
Great Danger

Construction Industry is in the great danger and in a major crisis creating greater impact to the environment. The analysis is carried out in order to find the sources that generates the construction waste at the initial stage and the contribution rates of those waste. This thesis also deals with the waste reduction procedures. Showing the results to the future consideration enabling to the quote “Construction waste management to the future generation

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