46· Polyethylene Terephthalate Wastes as a Partial Replacement for Fine Aggregates in Concrete Mix, Case of Jimma Town, South West Ethiopia
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Abstract—This Research paper is a live study on the above mentioned title “Recycling of Concrete” This paper consist the introduction of recycled concrete aggregate with its uses and properties. Various test results on Recycled concrete aggregate also described. It also consist the difference between RCA and natural aggregate. The future recommendations are also …
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The recycling of concrete structures as concrete aggregate in Ethiopia was investigated, and promising results were found [4]. The physical properties of recycled concrete aggregate are within the range of normal weight aggregate.
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Dewanshu Ashlawat and colleagues (2014) According to their findings, the coconut shell is classified as a light-weight aggregate in their research. When dried, the coconut shell includes significant amounts of cellulose, lignin, pentosans, and ash. The weights of the ingredients are used to determine the proportions of the materials. The water cement ratio is determined by …
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11· The experimental result indicates that replacement of recycled concrete aggregate by natural coarse aggregate improves the porosity and permeability of the concrete.
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731· One approach to all of these problems is to recycle CDW and use as an alternative coarse aggregate for concrete. Aggregate recycling may be necessary for the creation of "Recycled Concrete" in the future leading to a shortage of natural resources.
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201994· Recycling Fine Aggregate From Demolished Hollow Concrete Block for Green Concrete in Ethiopia by Lucy Feleke Nigussie published in Global Journal of
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731· One approach to all of these problems is to recycle CDW and use as an alternative coarse aggregate for concrete. Aggregate recycling may be necessary for the creation of "Recycled Concrete" in the future leading to a shortage of natural resources.
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310· Ethiopia''s construction industry is developing at an unprecedented rate. Concrete production necessitates a large number of natural resources in this developing industry. River sand is commonly utilized as a fine aggregate in concrete compositions. However, due to a wide range of variability,
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20191212· This research aimed at searching for alternative construction materials through recycling and examined the properties of recycled fine aggregate from demolished (old) and construction (new) hollow
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Chapter Environmental Impact and Sustainability of Aggregate Production in Ethiopia Gashaw Assefa and Aklilu Gebregziabher Abstract The production of aggregate for the infrastructural development of the country has been increasing for the last three decades due to the high urbaniza- tion rates in the main cities of the country and the ever-growing demand for basic …
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46· Polyethylene Terephthalate Wastes as a Partial Replacement for Fine Aggregates in Concrete Mix, Case of Jimma Town, South West Ethiopia
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2020311· The production of aggregate for the infrastructural development of the country has been increasing for the last three decades due to the high …
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Thesis proposal addis ababa science technology university assessment on …
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The main constituents of concrete are coarse aggregate, fine aggregate, cement and water. Fine aggregate is a prime material used for preparation of mortar and concrete and which plays a major role in mix design. Fine aggregates are weathered and worn-out particles of rocks and are of various grades or sizes depending upon the amount of wearing.
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The recycling of concrete structures as concrete aggregate in Ethiopia was investigated, and promising results were found [4]. The physical properties of recycled concrete aggregate are within the range of normal weight aggregate. However, the properties of recycled concrete aggregate are lower than the properties of natural coarse aggregate.
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2016 The non-degradable nature of concrete waste from demolition and collapsed building sites, coupled with environmental degradation and exposure to heavy metals in the process of …
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2025315· The integration of waste materials in construction is increasingly recognized as a vital component of environmentally sustainable engineering practices. Among these materials, steel slag and recycled concrete aggregates stand out as promising alternatives to natural...
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aggregate increased, and the targeted compressive strength was met up to 50 % replacement Therefore, this work demonstrated that the suitability of using demolished hollow concrete …
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200511· Concrete is one of the versatile and widely used buiding material in the world construction industry. Fine and coarse aggregates make about 70% by volume of concrete production. It goes without
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Abstract The production of aggregate for the infrastructural development of the country has been increasing for the last three decades due to the high urbaniza-tion rates in the main cities of the country and the ever-growing demand for basic infrastructural facilities. The environmental impact of both fine and coarse aggregate production is now hard to ignore especially on the outskirts …
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This research aimed at searching for alternative construction materials through recycling and examined the properties of recycled fine aggregate from demolished (old) and construction (new) hollow concrete block (HCB) wastes.
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11· The construction industry in Ethiopia is booming with a resulting increase in requirement of cement concrete as an input. The industry faced with depletion of natural aggregate, increasing the scarcity of landfills, haulage and landfill costs. The environmental and...
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The recycling of concrete structures as concrete aggregate in Ethiopia was investigated, and promising results were found [4]. The physical properties of recycled concrete aggregate are within the range of normal weight aggregate. However, the properties of recycled concrete aggregate are lower than the properties of natural coarse aggregate.
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This case study examines the use of recycled aggregates in sustainable concrete for the Addis Ababa corridor project, highlighting the environmental and economic benefits of repurposing construction waste. Findings indicate that concrete with up to 50% recycled aggregates meets performance standards while reducing landfill waste and material costs. Challenges such as …
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