Waste Generation Indicators in Brazilian Construction Sites

2019 ◽  
Vol 45 (4) ◽  
pp. 419-427
Author(s):  
Diogo Henrique Fernandes da Paz ◽  
Kalinny Patrícia Vaz Lafayette ◽  
Maria do Carmo Sobral
Keyword(s):  
Inverse Relationship ◽  
Residential Buildings ◽  
Generation Rate ◽  
Waste Generation ◽  
Land Area ◽  
Construction Sites ◽  
Construction Waste ◽  
Construction Companies ◽  
The City ◽  
Excavation Area

The objective of this study is to perform a diagnosis of the Construction Waste (CW) generation at sites in the city of Recife, Brazil, and obtain indicators to improve waste management. This involved the collection of data through the establishment of partnerships with construction companies that build multifamily residential buildings in the region. To organize the information, a spreadsheet database was developed, containing the survey of the construction characteristics from each construction project, such as the phase, built area, total land area, demolition and excavation area, number of floors, execution time, among others. From this analysis, it was verified that the total CW generation increases as the built area increases. However, the generation rate has an inverse relationship, being higher for the projects with smaller built areas. It is therefore necessary to consider the size of the project in order to use the correct CW generation rate. The results obtained by the analysis of these 20 worksites indicate that new indicators of waste generation are required by construction phase and by size of the built area, in order to properly estimate how much CW was generated and the costs to manage it.

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.

Estimating construction waste generation in residential buildings: A fuzzy set theory approach in the Brazilian Amazon

2020 ◽  
Vol 265 ◽  
pp. 121779 ◽  
Author(s):  
Luiz Maurício Furtado Maués ◽  
Brisa do Mar Oliveira do Nascimento ◽  
Weisheng Lu ◽  
Fan Xue
Keyword(s):  
Set Theory ◽  
Fuzzy Set ◽  
Fuzzy Set Theory ◽  
Residential Buildings ◽  
Brazilian Amazon ◽  
Theory Approach ◽  
Waste Generation ◽  
Construction Waste

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.

Analysis of the Cadastral Assessment of Lands, Taking into Account Zoning of Lands at a Prestige in Krasnoyarsk

2020 ◽  
pp. 85-88
Author(s):  
Ruslan V. Romanov ◽  
Gennady S. Varaksin
Keyword(s):  
Urban Space ◽  
Residential Buildings ◽  
Market Value ◽  
Housing Construction ◽  
Analysis Method ◽  
Construction Sites ◽  
Individual Housing ◽  
The City ◽  
The Prestige

The analysis of the state cadastral assessment of land based on the data of zoning of lands according to their prestige in the city of Krasnoyarsk. The need for assessing the prestige of territories of settlements is stated. On the territory of Krasnoyarsk, 3 zones were conditionally allocated in different districts of the city, where plots intended for the construction of individual residential buildings are located. The main parameters of the cadastral assessment of the lands of such territories are considered. A list of parameters is outlined by which the prestige of individual housing construction lands is estimated. The prestige of each zone is determined. Four indicators are identified that form the prestige of the zones in the cadastral assessment of land. The parameters that determine the level of land value depending on their prestige are identified. A tendency has been established to determine the prestige of zones as a result of the classification of the population of these zones by income level and the desire to live on this territory of people of equal social status. The territory of urban space must be divided into zones, according to the criteria of prestige. A comparison is made between the market and cadastral value of land plots. The comparative analysis method revealed that in the most prestigious areas of urban space, the market value of individual housing construction sites exceeds the cadastral value several times. Conclusions are drawn about the dependence of the price of land for individual housing construction on the level of prestige of the territory of urban space and location.

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.

Factors that Contribute to the Generation of Construction Waste at Sites

2010 ◽  
Vol 163-167 ◽  
pp. 4501-4507 ◽  
Author(s):  
Siti Nazziera Mokhtar ◽  
Noor Zalina Mahmood ◽  
Che Rosmani Che Hassan ◽  
Ahmad Firman Masudi ◽  
Nik Meriam Sulaiman
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Human Error ◽  
Residential Buildings ◽  
Technical Problem ◽  
Waste Minimization ◽  
Construction Sites ◽  
Construction Waste ◽  
Waste Index ◽  
Area Of Concern

Construction industry in Malaysia is growing rapidly with high demand due to vast development and urbanization. Therefore, many commercial and residential buildings are being developed. The increasing number of construction projects in Malaysia will indirectly contribute to the increase of construction waste generation. Thus, waste minimization is an important area of concern in the implementation of the construction waste management in the construction industry of Malaysia. Data collection and observations was conducted at three construction sites which adopt different type of method with different type of building and size of project in Klang Valley. The calculation of the construction waste index generated at these sites is adopted from Poon et al., (2001). Result showed that construction method, size of projects (GFA), type of building, storage method system, human error and technical problem can affect the amount of waste index (debris) and amount of wastage level generated at construction sites. Therefore waste index and wastage level can be used as operational an indicator for waste minimization of the construction activities.

scholarly journals Concretes with nanoadditive of fired recycled concrete

2020 ◽  
Vol 12 (5) ◽  
pp. 245-249
Author(s):  
B.V. Gusev ◽  
V.D. Kudryavtseva ◽  
V.A. Potapova
Keyword(s):  
Natural Resources ◽  
Housing Stock ◽  
Residential Buildings ◽  
Strength Properties ◽  
Recycled Concrete ◽  
Construction Waste ◽  
Cost Of Materials ◽  
The Cost ◽  
The City ◽  
Mineral Additives

The practice of using recycled concrete from the broken concrete of substandard reinforced concrete products can become widespread in practice. The undoubted relevance of this topic is explained by the program for the renovation of the housing stock in the city of Moscow, which provides for the demolition of 5-storey residential buildings until 2032. The problem of recycling and reuse of construction waste becomes obvious to improve the environmental situation, as well as to reduce the cost of materials in construction and preserve natural resources. The article deals with the nanostructuring of cement systems by means of introduction of ultra- and nanodispersed mineral additives. In this case, additional grinding of mineral additives is carried out in cavitation units. Nanostructuring provides the compaction of concrete structures and an increase in the strength properties of concrete.

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 Study of the rate of generation of waste from construction in new works in the city of Ribeirao Preto-SP

2020 ◽  
Vol 27 (4) ◽  
Author(s):  
Luiz Paulo da Silva ◽  
José da Costa Marques Neto
Keyword(s):  
Construction Industry ◽  
Quantitative Study ◽  
Generation Rate ◽  
Waste Products ◽  
Construction Waste ◽  
Two Parameters ◽  
The City

Abstract: In the construction industry, many waste products are produced most part of the time, because they do not have a correct end, end up causing strong impacts on the environment. To this end, CONAMA Resolution No. 307/2002 and its amendments thereafter determine the guidelines for the management of civil construction waste appropriately. In this context, this article aims, through a quantitative study, to identify the situation of civil construction waste, called here as RCD, in the city of Ribeirao Preto, determining the amount of waste generated through two parameters; licensed areas and volume disposed of at authorized locations, from a generation rate of 183.28 kg/m2, generating 1,112.35 t/day and 561.98 t/day respectively. The work sought to relate the values and obtained a per person generation of 1.24 kg/inhab × day. Thus, the article identified and measured the generation of construction waste in the city of Ribeirao Preto-SP, providing subsidies and information for comparisons with existing bibliography.

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