هل ستصبح شريكنا القادم ؟
Construction, renovation and demolition activities lead to the formation of waste. The construction waste poses great danger to …
اقرأ أكثر
The effects associated with waste vary widely and are influenced by the substances or chemicals found in waste and how they are managed. Although data do not exist to directly link trends in waste with effects on human health and the environment, the management of waste may result in waste and chemicals in waste entering the …
اقرأ أكثر
The paper investigates the construction wastes that are potentially hazardous to the environment. It adopts the use of interviews and site investigations to collate data for analysis. The degree ...
اقرأ أكثر
The influence of brick content on the backfilling effect of construction waste. It was found that the water absorption performance of the test group with more waste bricks was significantly improved, and the maximum dry density was correspondingly reduced. There is more brick content in construction waste, and brick residue can fill the gap in ...
اقرأ أكثر
The construction industry, as a vital pillar of a country's economy, generates a significant amount of construction waste, which places a tremendous burden on the environment and society. Although previous studies have explored the impact of policies on construction waste management, there is a lack of a simulation model that …
اقرأ أكثر
Construction and demolition waste (CDW) negatively affect costs, energy, productivity, the environment, and society. Planning and storing building trash may reduce these harmful consequences. On ...
اقرأ أكثر
Currently, in Peninsular Malaysia, approximately 95–97% of solid wastes (including construction and demolition (C&D) waste) collected are dumped at the disposal sites, on the balance of 3 to 5% are treated either using incineration technique or recycled and reprocessed [1].The rate of recycling of C&D waste is quite low as compared to the …
اقرأ أكثر
12.7.5 Impact of Construction and Demolition Waste on the Soil During Disposal. Table 12.3 summarizes some of the construction-related effects on soil. Waste during the construction phase arises due to misuse or mishandling of materials or due to the procurement of excessive raw materials which are not utilized ultimately.
اقرأ أكثر
In Malaysia, the generation of waste in the construction industry in the year 2015 reached 28.6 tons daily which equals 10,439 tons per year [1]. In the construction industry, there are several ...
اقرأ أكثر
It is imperative that construction waste be controlled and managed effectively to reduce the negative impacts on the environment. There are various factors that cause waste, so this study aimed to determine these, and to understand the types of waste. A review of the literature indicates that the adoption of lean construction …
اقرأ أكثر
May 15, 2023. Construction sites are notorious for their environmental impacts. With increasing awareness about sustainability and the need to reduce carbon emissions in …
اقرأ أكثر
Construction wastes have been known to generate large and diverse quantities of waste with 37.5% [1]. In many countries, material wastes, one of the physical wastes, generation increased by 342% ...
اقرأ أكثر
In addition, delay of project time or time overrun is the third-ranked economic impact as a result of waste in construction sites (mean = 3.91). Construction waste causes the project to be delayed due to the fact that there is the time needed to clean or remove waste materials, replace and rework.
اقرأ أكثر
1. Introduction. Construction and demolition (C&D) debris is produced during the construction, rehabilitation, and demolition of buildings, roads, and other structures …
اقرأ أكثر
1. Introduction. The generation of construction and demolition waste (CDW), which accounts for at least 30 % of the total solid waste produced worldwide, has dramatically increased (Ginga et al., 2020).Although Target 11.6 in the United Nations Sustainable Development Goals, as well as the Philippine Development Plan …
اقرأ أكثر
Deconstruction is the process of carefully dismantling buildings to salvage components for reuse and recycling. Deconstruction can be applied on a …
اقرأ أكثر
A (2006), construction waste generated from a construction project site of a new building is estimated around 27068.4 tonnes. The construction waste is divided into 8 types and the concrete and aggregate waste is the highest generated waste among these wastes with 17820 tonnes or 65.8% of the total generated construction wastes.
اقرأ أكثر
Construction creates an estimated third of the world's overall waste, and at least 40% of the world's carbon dioxide emissions. Compare that to the 2-3% caused by aviation, which people fret far ...
اقرأ أكثر
Construction waste accounts for more than 75% of all solid waste in Qatar and the majority is landfilled in the desert outside the capital, Doha, contaminating an increasingly large area of land.
اقرأ أكثر
The following are the most common causes of illegal dumping; 1. High Level of Overall Waste Production. Studies indicate that a higher level of overall waste production is distinctly correlated with increased rates of …
اقرأ أكثر
1. Introduction. With rapid economic development and urbanisation, the global construction industry has entered a golden age. However, this has led to large amounts of construction waste (Abreu et al., 2015; Liu et al., 2019).Each year, the United States produces approximately 700 million tonnes of construction waste, with the …
اقرأ أكثر
In recent years, large-scale urban construction programmes, particularly the extensive urban renewal activities in big cities, have produced billions of tonnes of C&D waste, and caused significant environmental impacts. A report from National Development and Reform Commission of China claims that China generated roughly 1 billion tonnes …
اقرأ أكثر
This is because a large amount of money is spent on dumping the waste in landfills and mitigating the effects of dumping on the environment. The environmental problems include: (1) diminishing landfill space due to incremental quantities of these disposed wastes in it; (2) the depleted building materials; (3) the increase in …
اقرأ أكثر
This result is given in Table 9 as (β = 0.250, t = 3.440, p < 0.001). Similarly, Mohammed et al. (2020) stated that management of material waste on site has a considerable influence on project ...
اقرأ أكثر
Abstract. The continuous increment of construction projects worldwide is raising the amount of construction waste (CW). A significant amount of CW in landfills …
اقرأ أكثر
1. Introduction. Construction waste (CW) is damaged materials generated during the construction process and considered the most significant contributor to landfills worldwide (Ibrahim et al., 2010).Specifically, CW continually contributes approximately 16%–60% of landfills globally (Luangcharoenrat et al., 2019).This overwhelming volume …
اقرأ أكثر
Construction wastes have become a pressing issue in many developing countries and have adverse effects on environment, economy and social aspects. Illegal dumping is a common issue created from the physical construction waste and besides that non physical waste like cost and time overruns are not properly addressed among the construction …
اقرأ أكثر
Yuan (2012) carried out a quantitative study to evaluate the social performance on construction waste management using system dynamics. Many indicators have been used to assess the social impacts of CDW. Hao et al. (2007) conducted a study on managing construction and demolition waste. The study showed that system …
اقرأ أكثر
Construction waste is a global problem, including in New Zealand where it makes up 40–50% of landfill waste. Accurately measuring construction waste is crucial to reduce its impact on New ...
اقرأ أكثر
Despite the relatively benign characteristics of construction and demolition waste, its mismanagement can result in considerable harm to human health for 200 million workers and those who live and work in proximity to construction and demolition activities. The high number of workers classified as informal, results in a large unregulated and vulnerable …
اقرأ أكثر
