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.

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.

scholarly journals Value Stream Mapping as a Supporting Management Tool to Identify the Flow of Industrial Waste: A Case Study

2020 ◽  
Vol 13 (1) ◽  
pp. 91
Author(s):  
Yolandi Schoeman ◽  
Paul Oberholster ◽  
Vernon Somerset
Keyword(s):  
Steel Industry ◽  
Industrial Waste ◽  
Management Tool ◽  
Value Stream Mapping ◽  
First Year ◽  
Iron And Steel Industry ◽  
Waste Generation ◽  
Iron And Steel ◽  
Value Stream

The Value Stream Mapping (VSM) method was applied to a case study in the iron and steel industry in Southern Africa as a supporting management tool to identify, demonstrate, and evaluate industrial waste and comprised of three steps. The first step included collecting and verifying waste generation and flow data as the VSM data input step. The second step comprises three phases: mapping waste generation and fractions and horizontal and vertical performance analysis. The third step is comprised of actual and future state maps compilation. Following the first year of implementation, waste was reduced by 28%, and waste removal cost by 45%. Implementing the VSM method demonstrated cost savings and reduced waste flow within the study’s first year. The initial waste generation reduction target of 5% per annum was exceeded. The VSM method application proved to be a practical method for the iron and steel industry to visualize and analyze waste flows, identify opportunities and challenges in waste management operations, reduce waste, promote lean manufacturing, and achieve an environmentally responsible zero-waste environment.

scholarly journals Construction Waste Audit in the Framework of Sustainable Waste Management in Construction Projects - Case Study

2020 ◽  
Author(s):  
Marcela Spišáková ◽  
Peter Mésároš ◽  
Tomáš Mandičák
Keyword(s):  
Waste Management ◽  
Waste Disposal ◽  
Construction Projects ◽  
Economic Benefits ◽  
Construction And Demolition Waste ◽  
Transport Costs ◽  
Demolition Waste ◽  
Construction Waste ◽  
Building Information

The issue of sustainability has long been the subject of interest of the architecture engineering and construction sector. All three aspects of sustainability - economic, environmental and social - can be affected through appropriate construction waste management. Construction and demolition waste (CDW) is one of the largest worldwide waste streams, therefore it is given great attention by all stakeholders (investors, contractors, authorities, etc.). Researches have shown that one of the main barriers to insufficiency CDW recovery is inadequate policies and legal frameworks to manage CDW. It is also one of the EU's environmental priorities. Aim of the article is to confirm the economic potential of construction and demolition waste audit processing through case study. A pre-demolition waste audit has been processed for unused building of shopping center in the town Snina in Slovakia. Subsequently, a comparison of economic parameters (waste disposal costs and transport costs) of recommended CDW management was performed. This comparison confirmed the economic benefits of environmentally friendly construction waste management methods according to the waste audit results, which will also increase the sustainability of construction projects. In addition, the cost parameters of selected waste disposal methods could be another dimension of building information modelling.

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.

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 Assessment of construction waste management practice: a case study in Costa Rica

2007 ◽  
pp. 85-95
Author(s):  
Lilliana Abarca ◽  
Ir. F.M. Scheublin ◽  
Hijmen Van Twillert
Keyword(s):  
Costa Rica ◽  
Management Practice ◽  
Developed Countries ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Construction Waste ◽  
A Value ◽  
Soil Piping ◽  
Concrete Blocks

The construction industry deals with the provision of shelter and infrastructure for acontinuing growing population and urbanization, especially in developing countries, Thissector is well known as a huge consumer of natural resources; which produces a significantquantity of construction and demolition waste, Data about the situation of construction wastegeneration in Costa Rica is scarce and the objectives of the study were to develop a baselinestudy to determine quantities and composition of the waste, as well as, motivators and barriersfor achieving a more sustainable activity, This paper draws the findings of the surveyundertaken by means of questionnaires, interviews and site visits, The composition basicallyis wood, soil, piping materials, corrugated roof sheets, wires, packaging materials (paper,plastic and cardboard), cement, concrete, blocks, paints and debris, The amounts (either byvolume or by weight) of these streams are unknown since the majority of the companies don'tkeep track of these data, It is suggested a value of I 00 kg/m2 as an educated guess of theamount of construction waste produced, This high amount, compared to lower values found inliterature for developed countries, could be explained by the general lack of awareness andinformation on environmental issues as well as lack of technologies, governmentalenforcement and market incentives to improve the environmental footprint of the sector,

scholarly journals An Informatization Scheme for Construction and Demolition Waste Supervision and Management in China

2020 ◽  
Vol 12 (4) ◽  
pp. 1672
Author(s):  
Zhijia You ◽  
Chen Wu ◽  
Lianqiong Zheng ◽  
Lingjun Feng
Keyword(s):  
Decision Making ◽  
Waste Disposal ◽  
Construction And Demolition Waste ◽  
Collaborative Management ◽  
Accurate Data ◽  
Demolition Waste ◽  
Supervision System ◽  
Construction Waste ◽  
Supervision And Management

China is in a development period of urbanization construction, while its environment is threatened by an increasing amount of construction and demolition (C&D) waste. Due to the excessive pursuit of profits and a general lack of environmental awareness of stakeholders, illegal behaviors such as illegal dumping universally exist in the waste disposal process. Meanwhile, supervision departments face many challenges in collaborative management and decision-making, which lead to inefficiencies in C&D waste supervision and management in China. To address the above challenges, we propose an informatization scheme integrating multiple technologies, which will contribute to real-time monitoring of illegal behaviors in the waste disposal process, accurate data collection for evaluating the performance of stakeholders, and the enhancement of the collaboration between supervisory departments. A case study of the Ningbo Construction Waste Transportation Supervision System is introduced to verify the feasibility and effectiveness of the proposed scheme; results show that the total number of illegal cases has decreased from 510 to 89 per year since the system was put into operation.

scholarly journals Construction Waste Audit in the Framework of Sustainable Waste Management in Construction Projects—Case Study

Buildings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 61
Author(s):  
Marcela Spišáková ◽  
Peter Mésároš ◽  
Tomáš Mandičák
Keyword(s):  
Waste Management ◽  
Waste Disposal ◽  
Construction Projects ◽  
Economic Benefits ◽  
Information Modeling ◽  
Construction And Demolition Waste ◽  
Transport Costs ◽  
Demolition Waste ◽  
Construction Waste

The issue of sustainability has long been the subject of interest in architecture engineering and the construction sector. All three aspects of sustainability—economic, environmental, and social—can be affected through appropriate construction waste management. Construction and demolition waste (CDW) is one of the largest worldwide waste streams, therefore, it is given great attention by all stakeholders (investors, contractors, authorities, etc.). Research studies show that one of the main barriers to insufficient CDW recovery is inadequate policies and legal frameworks to manage CDW. It is also one of European Union’s (EU) environmental priorities. The aim of the article was to confirm the economic potential of construction and demolition waste audit processing through a case study. A pre-demolition waste audit was processed for an unused shopping center building in the town Snina in Slovakia. Subsequently, a comparison of economic parameters (waste disposal costs and transport costs) of the recommended CDW management was performed. This comparison confirmed the economic benefits of environmentally friendly construction waste management methods according to the waste audit results, which would also increase the sustainability of construction projects. Additionally, the cost parameters of selected waste disposal methods could be another dimension of building information modeling.

scholarly journals Evaluation of Reuse of Demolition and Construction Waste in Geotechnical Engineering Works with A Case Study: Mosul City (Review)‎

2021 ◽  
Vol 14 (3) ◽  
pp. 108-118
Author(s):  
Mohammed Abdulnafaa ◽  
Ayman W. Aldabag ◽  
Hanan H. Alghyat
Keyword(s):  
Geotechnical Engineering ◽  
Construction And Demolition Waste ◽  
Engineering Properties ◽  
Demolition Waste ◽  
Construction Waste ◽  
Base Materials ◽  
Asphalt Materials ◽  
Many Sources ◽  
The City

Demolition and construction waste are among the topics that focus by many researchers. The ‎methods of reuse of waste materials must reduce the economic and environmental pressure of their ‎presence in various regions. Before 2014, the city of Mosul contained relatively small quantities of ‎demolition and construction debris, especially concrete rubble, asphalt materials, and bricks (they formed ‎approximately 80% of the construction and demolition debris). These materials increased very greatly ‎after the liberation operations and the widespread destruction of large parts of the city and became a great ‎problem in the reconstruction operations. There is no clear plan yet in the city to deal with this debris, and it ‎is disposed of by moving them to another place or burying them randomly when rebuilding the destroyed ‎parts. This study shows to deal with demolition and construction debris in Mosul after liberation and during ‎reconstruction operations. Also, many sources and data dealing with the re-use of demolition and ‎construction debris in the field of geotechnical engineering for operations to improve the engineering ‎properties of soils are presented. Many papers show the possibility of using construction and demolition waste as an alternative base or sub-base materials, fill for embankments, or increase durability and reduce the swelling ‎and plasticity ‎of clay.  The study concludes that the researches and data can be used to deal with ‎the rubble of demolition and construction in Mosul in a way that enables to benefit from it economically ‎and environmentally.‎

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