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·Usually plastic waste is utilized as aggregate fine/coarse and fiber whereas rubber waste is mostly used as aggregate fine/coarse ; however it also has some usage as a binder Nuzaimah et al 2018 and fiber Gupta et al 2016 The factor which limits their use is the aquaphobic nature Li et al 2020
·Concrete production and construction and demolition waste generation are some of the main contributors of constant carbon dioxide emission into the atmosphere inspection until the handling of all types of waste produced during this process material utilization individually in recycled aggregate concrete C&D waste can indeed make a
·Concrete waste CW recycling stands as a promising strategy to promote sustainable construction practices This research aims to assess the feasibility of using recycled concrete aggregates RCA as a surrogate for natural aggregates NA in concrete applications and reduce the environmental impact associated with the depletion of natural resources and
·In the current century urbanization and the development of the construction industry have led to the generation of construction and demolition waste CDW imposing pressure on ecology and the environment This has attracted the attention of industry personnel and researchers This work discusses the current research on recycled coarse or fine
·The production and use of lightweight aggregate LWA in the construction industry is not a new concept The evidence regarding the utilization of lightweight aggregate can be obtained from ancient civilizations This water treatment process will generate organic waste matter known as sludge Domestic households produce an average of 200
·Global production of construction and demolition waste has significantly increased over the last few decades causing environmental problems due to its uncontrolled disposal The use of recycled materials has been on the rise during the same period primarily for the purpose of sustainable development and protecting the environment
·With the acceleration of urbanization a large amount of construction and demolition waste CDW is being produced on a global scale [1] [2] [3] According to reports the European Union and United States produce approximately 800 and 700 million tons of CDW each year respectively [4] [5] [6] As the largest developing country in the world China produces
·The production process of high quality construction waste recycled aggregate starts from obtaining construction demolition waste until that the recycled aggregate is produced Based on the two separation technologies shown above the large scale processing of CDW is distributed in Fig 2
·Annual solid waste generation in India is 40 million tonnes and it increases at a rate of % to 2% annually UNIDO Report Recycling of Plastics in India reports million tonnes of plastic trash recycled 15 600 tonnes of garbage per day and million tonnes of plastic waste left uncollected or strewn 9 400 tonnes of waste per day annually
·This paper concerns the recovery of construction and demolition waste as coarse recycled aggregates for concrete Coarse recycled aggregates may be used as a partial or total replacement of natural aggregates contributing to the circular economy and minimizing landfill disposals as well as the consumption of natural mineral resources However
·The microstructure of recycled aggregate concrete was analysed using a fluorescent light optical microscope which made it possible to observe the high porosity of recycled aggregates with and
·It s a creative approach to reuse recycled plastic in the building sector rather than landfilling it Nevertheless most concrete characteristics have been impacted by the use of recycled plastic aggregates RPA Several methods including treating the RPAs surface were used in earlier studies to reduce the harmful impact of the RPAs on the performance of the
·There have been efforts to use building demolition waste as an alternative aggregate in concrete to decrease the use of natural resources for construction The World Green Building Council estimates that the construction industry is responsible for more than 50% of all material extracted globally and that construction and demolition waste makes up 35% of global
·According to Muduli and Mukharjee 2019 a higher air content value was recorded for RCA than the normal aggregate concrete However the research of Falek et al 2017 revealed that an inverse relationship exists between the density and the amount of RA in the concrete mixture As the quantity of the fine recycled aggregate increases then the density
·Structural concrete aggregate can be substituted with sustainable alternatives from construction and demolition waste such as reclaimed asphalt pavement RAP This contribution assesses the RAP aggregate production chain and aims to investigate the economic aspect of RAP aggregate evaluating the costs associated with its production and comparing
·Assuming that the total portion of the mineral fraction of construction and demolition waste CDW generated in the EU in 2014 Eurostat 2017 could be transformed into recycled aggregates RA this would amount to about 11% of the total demand for construction aggregate This demonstrates that there is considerable scope to develop new ways
·Concrete recycling to produce aggregates is crucial in reducing the demand for virgin materials in the construction industry particularly for the most widely used building material—concrete A potential solution to enhance the quality of recycled aggregates involves the removal of the adhered cement paste from their surfaces In this study samples of industrial
·Waste reduction and decreasing the need for natural aggregate are significant environmental factors that should be taken into consideration Both can be achieved by incorporating recycled concrete aggregate into fresh concrete mixes Most previous studies on concrete incorporating recycled concrete aggregates mainly examined recycled coarse
·Nowadays recycled aggregate concrete RAC has been most extensively applied in the construction industry as a sustainable resource to decrease carbon dioxide emissions and construction waste
·recycling process are jaw crusher impact crusher gyratory crusher magnate sepa rator and sieve Rao et The procedure followed in India is explained in the subsequent section Extraction of Recycled Coarse Aggregate Recycling of waste concrete involves several manual as well as mechanical steps
·1 Introduction Production of construction waste in Korea increases every year and the recycling rate 98% increases accordingly Based on the information from the Ministry of Land Infrastructure and Transport of Korea [12] 51 million tons of recycled aggregates were produced and 44 million tons were sold in 85% of this was utilized for earth
·To date global anthropogenic emissions of atmospheric CO 2 are larger than at any other time in human history around G tonnes in 2021 [1] [2] The cement industry is the second industrial emitter of CO 2 which accounts for over 7% of man made CO 2 emissions [3] Carbon capture utilization and storage CCUS has been considered as an important
·The exponential rise in the production of plastic and the consequential surge in plastic waste have led the scientists and researchers look out for innovative and sustainable means to reuse/recycle the plastic waste in order to reduce its negative impact on environment Construction material converting waste plastic into fuel household goods fabric and clothing
