scholarly journals Exploring Types of Waste Generated: A Study of Construction Industry of Pakistan

2019 ◽  
Vol 266 ◽  
pp. 05011
Author(s):  
Muhammad Akram Akhund ◽  
Aftab Hameed Memon ◽  
Nafees Ahmed Memon ◽  
Tauha Hussain Ali ◽  
Ali Raza khoso
Keyword(s):  
Developing Countries ◽  
Construction Projects ◽  
Negative Impact ◽  
Human Life ◽  
Severity Index ◽  
Physical Structure ◽  
Waste Generation ◽  
Construction Waste ◽  
Importance Index ◽  
Negative Impacts

The construction sector is responsible for providing fundamental physical structure required for living and survival of human life. Increased development works have led in resulting the massive amount of waste generation in developing countries. Due to poor management system on sites, it has become more crucial and exerts several negative impacts on society and the environment. This Unused waste material has a negative impact on the ecosystem and needs a considerable amount of money for recycling, reusing and disposal of the waste. Like other developing countries Pakistan is spending a significant portion of its GDP on handling construction waste. Among the several other factors, the key contributes are highlighted in this study. This study is exploratory work investigating the types of construction waste generated on site and their relative impact of the project cost in construction projects of Pakistan. Through questionnaire the opinion of clients, consultant and constructor have been taken to identify the major types of waste having more impacts on cost and time. Through Average index, severity index and importance index, the probability of occurrence of waste through different materials, severity level of waste production by these materials, and the overall effect of all waste generating materials have been found respectively. Among the materials sand, concrete, tile is the most common materials, which are responsible for a waste generation while time and cost are the two most common non-physical waste generating factors.

ASSESSMENT OF WOODEN BUILDINGS IN TERMS OF CONSTRUCTION WASTE GENERATION

2020 ◽  
Author(s):  
Marcela Spišáková ◽  
Mária Kozlovská ◽  
Jozef Švajlenka
Keyword(s):  
Negative Impact ◽  
Raw Materials ◽  
Environmental Parameters ◽  
Constructional Material ◽  
Waste Generation ◽  
Construction Waste ◽  
Construction Market ◽  
Negative Impacts ◽  
The Individual ◽  
Wooden Structures

Construction industry creates an environment for people's lives. On the other hand, construction activities have a negative impact on various aspects of the environment. It consumes natural raw materials, significantly contributes to carbon footprint, waste, etc. Appropriate choice of constructional, material, technical, technological and environmental parameters of buildings can partially reduce this negative impacts. By designing, implementing and using wood-based constructions it is possible to reduce the negative impact in the area of construction waste generation. Currently, the construction market offers a large number of construction systems of wooden buildings, which have both strengths and weaknesses. In this paper are identified construction systems of wooden buildings offered on the Slovak construction market. The aim of the paper is a detailed identification of construction waste generation during the realization of particular wooden structures and monitoring of waste generation in production factory (off site) and on construction site (on site) during the construction of wooden buildings. Based on the obtained information, the individual construction systems of wood-based constructions are compared in terms of construction waste generation

An empirical study on non-physical waste factors in the construction industry

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Charles Igwe ◽  
Fuzhan Nasiri ◽  
Amin Hammad
Keyword(s):  
Developing Countries ◽  
Empirical Study ◽  
Construction Projects ◽  
Severity Index ◽  
Structured Interviews ◽  
Planning And Scheduling ◽  
Content Type ◽  
Normality Test ◽  
Importance Index ◽  
Human Material

PurposeThis study highlights the findings of an empirical study to investigate waste factors (WFs) affecting the performance and delivery of construction projects in developing countries. The objectives of this study are to identify non-physical WFs in developing nations and rank the identified factors based on their degree of influence on the key performance indicators (KPIs) of cost, quality and time.Design/methodology/approachIn total, 34 WFs were identified through a detailed literature review and consolidated using semi-structured interviews with construction practitioners. The statistical analysis involved a normality test using the Shapiro–Wilk test to determine if sample data have been drawn from a normally distributed population, ranking the WFs using the Frequency Index (FI), Severity Index (SI) and Importance Index (IMPI), ranking the WFs based on their effect on the project KPIs of cost, quality and time, and identify clustering structures for the identified WFs to using factor analysis (FA).FindingsThe results revealed ineffective planning and scheduling, rework/repair of defective work and resource quality problems (human, material and equipment) as the three most important WFs affecting construction projects. The factor analyses showed that WFs can be grouped into five interrelated components, suggesting the need for integrated and holistic strategies to overcome the identified WF.Practical implicationsUnderstanding the effects of WFs on construction projects is a first step towards designing holistic solutions to ensuring projects deliver value to the clients and other stakeholders. The findings of this study provide direction to construction practitioners on where to focus appropriate strategies to manage the identified WFs effectively and, therefore, improve the productivity of construction projects.Originality/valueThis study provides the first holistic analysis of WFs affecting the productivity of construction projects in developing countries.

scholarly journals Challenges Towards Reducing Illegal Dumping Activities in the Construction Industry

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Mohd Hilmi Izwan Abd Rahim ◽  
◽  
Sulzakimin Mohamed ◽  
Narimah Kasim ◽  
Mazianah Rahmat ◽  
...  
Keyword(s):  
Developing Countries ◽  
Content Analysis ◽  
Waste Management ◽  
Construction Industry ◽  
Construction Projects ◽  
Negative Impact ◽  
Structured Interviews ◽  
Construction Waste ◽  
Illegal Dumping

This nowadays an increasing number of construction projects in Malaysia have contributed to the production of construction waste which has had a negative impact on the environment, especially through illegal dumping. The increasing number of illegal dumping activities is a sign that construction waste management needs to be examined. To date, a comprehensive criterion for construction waste management, in developing countries is still not clearly defined. Therefore, the objectives of this paper are to investigate current illegal dumping activities, and identify the challenges towards reducing illegal dumping activities in the Malaysian construction industry. Hence, this research conducted interviews with 20 expert stakeholders related to construction waste management in order to scrutinise illegal dumping activities in Malaysia. The data from these semi-structured interviews were analysed by content analysis. The findings are used to determine the current challenges for reducing illegal dumping activities in the Malaysian construction industry. The elements in the current findings are potentially to improve construction waste management in order to archive the proper construction waste management. Finally, this findings will help to identify strategies to reduce illegal dumping activities and to enhance challenges towards reducing illegal dumping activities in the Malaysian construction industry.

Quantification Methods for Construction Waste Generation at Construction Sites: A Review

2010 ◽  
Vol 163-167 ◽  
pp. 4564-4569 ◽  
Author(s):  
Ahmad Firman Masudi ◽  
Che Rosmani Che Hassan ◽  
Noor Zalina Mahmood ◽  
Siti Nazziera Mokhtar ◽  
Nik Meriam Sulaiman
Keyword(s):  
Construction Projects ◽  
Software Tool ◽  
Waste Reduction ◽  
Building Construction ◽  
Civil Infrastructure ◽  
Waste Generation ◽  
Construction Sites ◽  
Construction Waste ◽  
Future Direction ◽  
User Friendly

Estimation of construction and demolition (C&D) waste amount is crucial for implementing waste minimization program. Estimation of C&D waste amount generated is a mean in assessing the potential for waste reduction. Thus, a better understanding of C&D waste generation in terms of causes and sources can be achieved. The aim of this paper is to conduct a review on available construction waste quantification methods from previous studies, which have been utilized in certain countries, while attempting to choose the most suitable and applicable method, and to direct future studies for better quantification methods. This review is applicable only for building construction projects and did not include civil/infrastructure, demolition, renovation, and excavation projects. Six quantification methods and/or waste audit tool available from literatures are discussed, which include their limitation and future direction for this study. It is believed that some combination of these quantification methods could make a good impact in accurate numerical estimation of construction waste amount generated in building construction projects. A strong and accurate database as presented by Soliz-Guzman, combined with effective, vital, and resourceful estimation suggested by Jalali’s Global Index (GI), also with the aid of user-friendly software tool like the SMARTAudit could provide an effective and reliable waste quantification.

scholarly journals Kebutuhan Model Valuasi Lingkungan Bagi Kegiatan Transportasi

2012 ◽  
Vol 15 (2) ◽  
pp. 179
Author(s):  
Mudjiastuti Handajani
Keyword(s):  
Negative Impact ◽  
Human Life ◽  
Model Development ◽  
Sustainable Transportation ◽  
Geographic Scale ◽  
Political Issues ◽  
Sustainable Environment ◽  
Technical Issues ◽  
Negative Impacts ◽  
Support Decision Making

Apart from supporting to human life which is a part of positive impacts, transporation also contains negative impacts which does not only lead to local geographic scale of mainland, but also to the largesr one, including water and air environment, even atmosphere. When the negative impact comes to larger scale, macro decisions such policies supported by political issues should be intervented to minimize negative impacts and to develop a better transportation or a sustainable transportation in the future. It is an irony that most of professionals, technocrats, and scientiests related transportation in developing countries are still interested and focused in local issues of transportation phenomenon, model development for transportation planning and technical issues related to operational management analysis. Only a small group of them are interested in transportation impact studies for both local and larger area. It will be a rational justification to construct models to support decision making process in order to have a policy within line with sustainable environment which is not only useful for both local scale, but also larger scale (national and the earth).

scholarly journals A Comparative Study of Construction Waste Generation Rate Based on Different Construction Methods on Construction Project in Malaysia

2018 ◽  
Vol 8 (5) ◽  
pp. 3488-3491 ◽  
Author(s):  
H. Maniam ◽  
S. Nagapan ◽  
A. H. Abdullah ◽  
S. Subramaniam ◽  
S. Sohu
Keyword(s):  
Construction Projects ◽  
Indirect Measurement ◽  
Construction Method ◽  
Control Measures ◽  
Generation Rate ◽  
Waste Generation ◽  
Construction Waste ◽  
Construction Methods ◽  
A Value ◽  
Waste Generation Rate

High construction waste (CW) generation in Malaysia has serious impacts although there are very little available data regarding the relevant issue in Malaysia. This lack of data results in improper CW management and CW disposal without proper control measures. To control the implications of CW, it is very important to understand their quantity which is currently unknown. Past researches in Malaysia, found that CW generation was affected by construction methods (CMs) practiced on site. The aim of this study is to compare the CW generation rate between different CMs for on-going construction projects in Malaysia. Common CMs practiced in Malaysia are conventional construction method (CCM), mixed construction method (MCM) and industrialized building system (IBS). To obtain CW generation data, site visit (SV) method, which consists of direct measurement (DM) and indirect measurement (IM) is applied to this study. CCM was recorded to have the highest amount of waste (197.657 tons). IBS method records 77.188 tons and MCM 53.191 tons. Regarding the average waste generation rate (AWGR), IBS recorded a value of 0.018 tons per square meter, while MCM recorded 0.030 tons per square meter and CCM recorded the highest amount of 0.046 tons per square meter.

scholarly journals Mahasiswa di Era Pandemi Covid-19: Apakah Mungkin Kuliah Sambil Berbisnis?

2021 ◽  
Vol 1 (2) ◽  
pp. 154-158
Author(s):  
Genesis Sembiring Depari
Keyword(s):  
Community Service ◽  
Negative Impact ◽  
Human Life ◽  
Internet Technology ◽  
Negative Effects ◽  
Study Program ◽  
Service Activity ◽  
Negative Impacts ◽  
Use Of Social Media ◽  
Entrepreneurial Activities

The COVID-19 pandemic has affected all aspects of human life. This influence can be in the form of a positive or negative impact. Among students, not a few negative effects have been felt, such as decreased learning outcomes, increased boredom and stress etc. In addition to the negative impacts, some positive impacts can be seen and felt. One of them is the increasing ability of the community to use and utilize internet technology such as video conferencing technology, the use of social media etc. With the increasing ability to use internet technology, the opportunities to market products or services through the internet are also increasing. So that it brings new opportunities for students to be able to start their entrepreneurial activities from an early age when they are still studying in college. This community service activity is carried out through a scientific webinar that focusing on ways and strategies for students to be able to start their business as early as possible in the era of the COVID-19 pandemic. Participants in this community service activity consist of management study program students and the public.

Study of Methods for Minimizing Construction Delays: Evidences from a Developing Country

2011 ◽  
Vol 201-203 ◽  
pp. 2939-2942 ◽  
Author(s):  
Towhid Pourrostam ◽  
Amiruddin Ismail
Keyword(s):  
Developing Countries ◽  
Construction Projects ◽  
Project Manager ◽  
Negative Effects ◽  
Adequate Funding ◽  
Importance Index ◽  
Time Availability ◽  
Proper Design ◽  
The Right ◽  
Clear Objective

Delays are one of the biggest problems in construction projects in developing countries, as cause negative effects on the projects. Delays can be minimized only when their causes are identified. This paper aims to identify effective methods of minimizing delay in construction projects. The literature related the field of causes and effects of delay and methods for minimizing construction delay has been reviewed over the last decade. This paper highlighted methodology to reduce construction delays from consultant and contractor viewpoints. The perspective of contractors and consultants has been analysed to rank the methods of minimizing construction delays based on their Relative Importance Index (RII). The most effective methods of minimizing delay in construction projects were: adequate funding throughout the project, competent project manager, awarding bids to the right designer/contractor, complete and proper design at the right time, availability of resources, clear objective and scope, and the use of experienced subcontractors and suppliers. The result can be used as a guideline to successfully handling construction projects in Iran as well as other developing countries.

scholarly journals Integrating sustainability into construction project management: Barriers in developing countries

2019 ◽  
Author(s):  
Ali Fathalizadeh ◽  
Parviz Ghoddousi ◽  
Ali Akbar Shirzadi Javid ◽  
M. Reza Hosseini ◽  
Arka Ghosh
Keyword(s):  
Developing Countries ◽  
Project Management ◽  
Construction Industry ◽  
Construction Projects ◽  
Management Practices ◽  
Construction Project ◽  
Construction Project Management ◽  
Policy Makers ◽  
Importance Index ◽  
Development Goals

This paper is an attempt to explore the barriers to integrating sustainability into construction project management in developing countries. To this end, a comprehensive review of the literature is conducted, as a result of which a list of 30 barriers is culled from existing studies. The list of barriers is subsequently assessed in terms of relative importance index (RII) through a survey questionnaire administered to Iranian construction industry experts, resulting in a dataset of 176 completed questionnaires. Findings bring to light the most influential barriers to incorporating sustainability in construction projects for a developing country. These were: (1) lack of understanding of the potential selfbenefits of proactivity and high economic risks that unsustainable practices may carry, (2) inadequate assessment of risks and a silo-based approach, namely, insufficient cooperation among practitioners, research institutions and environmental organisations and (3) the lack of a systematic approach to planning and acting for the fulfilment of sustainability goals. As one of the first studies in its kind, the paper offers invaluable insight for researchers, practitioners, and policy makers, in supporting the transition of construction project management practices towards fulfilling sustainable development goals.

An empirical study on waste generation rates at different stages of construction projects in China

2019 ◽  
Vol 38 (4) ◽  
pp. 433-443
Author(s):  
Qiankun Wang ◽  
Lei Chen ◽  
Ruibo Hu ◽  
Zhigang Ren ◽  
Yanting He ◽  
...  
Keyword(s):  
Empirical Study ◽  
Construction Projects ◽  
Waste Reduction ◽  
Generation Rate ◽  
Estimation Methods ◽  
Small Samples ◽  
Waste Generation ◽  
Construction Sites ◽  
Construction Waste ◽  
Waste Generation Rate

Estimation of construction waste generation is critical to construction waste management decisions. However, current construction waste estimation methods have various limitations (e.g. small samples). To address those limitations, this research conducts an empirical study to evaluate the waste generation rate of different types of waste at different construction stages. In this study, construction waste from 148 new-built residential construction sites in China were sorted and weighted on site and their waste generation rates were estimated separately. The results indicated that the amount of inorganic nonmetallic waste with a generation rate of 16.59 kg m−2 was the highest among the five types of waste (i.e. inorganic nonmetallic waste, organic waste, metallic waste, composite waste, hazardous waste), while the waste generation rate for the underground construction stage, which was 27.57 kg m−2, was the highest among the three stages (i.e. underground stage, superstructure stage, finishing stage). Compared with previous data, the new waste generation rate proposed in this research can better estimate the actual waste generation situation in construction sites, which provides reliable information for proper decision-making. Furthermore, based on the result of the empirical study, some recommendations for construction waste reduction are proposed.

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