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Recycled Concrete Aggregates ET 493-FALL 2013 INSTRUCTOR: CRIS KOUTSOUGERAS ADVISOR: MOHAMED ZEIDAN BY: CHASE CHARRIER AND GARRETT TREGRE. CONCRETE MIX-DESIGN ACI Properties of Fresh …
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Introduction • Our project will consist of creating, testing, and analyzing concrete mixtures in which recycled concrete aggregates (RCA) and typical aggregates are used • Concrete Basic Components: water, binding …
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Natural Aggregate Concrete (NAC): Cement, Fine aggregate and Coarse aggregate in the ratio 1:1.6:3.3. . Recycled Aggregate Concrete (RAC): Natural coarse aggregate was completely replaced by recycled aggregate and the mix was in the ratio 1: 1.6: NAC1: 10% fly ash (by weight of cement) was added to NAC replacing cement.
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The compressive strength of the recycled aggregate was lower than that of the ordinary aggregate. (3) In case of using OPC, the concrete using recycled aggregate with carbonation showed higher strength and less pore than using recycled aggregate. However, in case of using GGBS used in large amounts as OPC substitute was not. (4)
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Recycled Concrete Aggregate • Objective • Available literature and industry practices • Conduct standard tests similar to materials • Spec requirements and guideline • Optimize the use • Benefits • Concrete pavement …
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Recycled concrete aggregates reduces the need for aggregates. This in turn reduces the environmental impact of the aggregate extraction process. Produce specification sized …
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Aggregates ppt - Download as a PDF or view online for free. Submit Search. Aggregates ppt. Apr 28, ... Aggregates are granular materials such as sand, gravel, crushed stone and recycled concrete used with cementing materials like cement or asphalt to produce concrete or asphalt. They make up 75% of concrete and over 90% of asphalt. Aggregates ...
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Recycled Aggregate Concrete (RAC) is a type of concrete that incorporates recycled aggregates, which are typically sourced from construction and demolition waste. This practice offers several environmental, economic, and practical benefits, making it a popular choice in sustainable construction. ... recycled concrete aggregrate ppt.pptx.
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This document discusses the use of recycled aggregate concrete in rigid pavements. It begins by introducing recycled aggregates which are produced from crushed waste concrete. The objectives are to determine the feasible percentage usage of recycled aggregates in construction and ways to reduce environmental impacts while saving costs. Advantages include cost savings, …
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Concrete has been in use since 3000 BC when the Egyptians built pyramids. In 1824, Portland Cement was invented by Joseph Aspdin. In 1836, the first compressive and tensile tests took place in Germany. The first concrete …
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This document is a study on recycled aggregate concrete conducted by Neelanjan Sarkar from Murshidabad College of Engineering & Technology. It discusses what recycled aggregate concrete is, its characteristics, classification, production …
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This document presents the results of an experimental study investigating the use of recycled concrete aggregate and silica fume in concrete. Concrete samples were produced with 50% replacement of natural coarse aggregate with recycled concrete aggregate. Silica fume was added at percentages between 0-25% as a cement replacement.
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cskppt - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. This document discusses the use of recycled concrete aggregate (RCA) in concrete. It begins with an introduction that defines RCA and discusses the benefits of recycling concrete debris. The objective of the study is to examine the properties of RCA and ...
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4. HISTORY The research on recycled aggregate concrete started from the year 1945 just after second world war in a fragmented manner. In 1977, Nixon prepared a report compiling all the works of recycled aggregate …
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This document discusses recycled aggregate concrete (RAC). RAC is made from aggregates derived from previously used construction materials, helping to address issues of depletion of natural resources and shortage of dumping sites. It describes the sources of recycled aggregates, their characteristics like lower density and strength, and their ...
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Therefore, it becomes necessary to recycle the crushed concrete and use it as course aggregate in new concrete mixes. download Download free PDF View PDF chevron_right. Building Materials Reuse and Recycle -A study based on Recycled Alternatives MOHESH BABU R, B. Arch / (V year) Mrs. R. LATHA, AP/Arch ... By efficient use of these demolished ...
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2. Introduction to Recycled Aggregate Concrete Construction, powerful human factor affecting the environment, Too much Waste appears on the construction and demolition sites. In the context of economy and environment protection, recycling of C&D waste has acquired utmost importance nowadays.
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In attempting to enhance the mechanical properties of recycled concrete after high temperature and solve the problem of large stacking of lithium slag (LS), this paper proposes lithium slag recycled concrete (LSRAC). In this research, LS was used to replace part of the cement (γL = 10%, 20%, and 30%), recycled coarse aggregate (RCA) completely replaced the …
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The use of Recycled Aggregate Concrete (RAC) is a cost-effective circularity strategy to mitigate environmental impacts. Several countries have integrated RAC into their …
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The paper, "Engineered Blended Thermoactivated Recycled Cement: A Study on Reactivity, Water Demand, Strength-Porosity, and CO 2 Emissions," was published December …
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Use of Recycled Concrete Aggregate. Use of Recycled Concrete Aggregate. GRAC Meeting, Spring 2012. Recycled Concrete Aggregate. Background Sustainability Re-use of waste materials Optimized use with …
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GREEN RECYCLED AGGREGATE CONCRETE (GRAC) - Download as a PDF or view online for free. Submit Search. GREEN RECYCLED AGGREGATE CONCRETE (GRAC) Dec 24, 2016 Download as PPTX, PDF 4 likes 1,434 views. Dayal Kurian ... Green concrete ppt.
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19 References 1. ASTM Standards: C143, C231/C231M-10; C39; C496; C779 2. "Concrete Air Entrainment Tests." Durham Geo Slope Indicator. Durham Geo-Enterprises, Inc durhamgeo. Web. 4 Dec 3. Gee, King W. "Use of Recycled Concrete Pavement as Aggregate in Hydraulic-Cement Concrete Pavement."
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PPT on Green concrete by Pankaj Kumar - Download as a PDF or view online for free. Submit Search. PPT on Green concrete by Pankaj Kumar. May 29, 2014 190 likes 68,318 views. ... Recycled concrete aggregate is produced from crushing waste concrete to achieve sustainable construction. It has properties like lower strength but can be used in ...
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This PPT is on Green concrete..... in this you learn about what is green concrete there feature, durability, compositions and many more things. recycled aggregate concrete. ... Recycled concrete aggregate is produced from crushing waste concrete to achieve sustainable construction. It has properties like lower strength but can be used in ...
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This PPT is on Green concrete..... in this you learn about what is green concrete there feature, durability, compositions and many more things. ... Recycled concrete aggregate is produced from crushing waste concrete to achieve sustainable construction. It has properties like lower strength but can be used in applications like road base or sub ...
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Recycled-Concrete-Aggregate - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. The document discusses recycled concrete aggregate, including: 1) It is produced from demolishing old concrete structures and can be used as an alternative to natural aggregates in construction.
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27. REFERENCE 1. IS: 10262-1982, Indian Guidelines for concrete Mix Design, Fifth edition March 1998. 2. Shetty M.S, Concrete Technology Theory and Practice 2008, S.Chand & company Ltd. 3. M Etxeberria, Influence of amount of recycled coarse aggregate and production process on properties of recycled aggregate concrete, Cement and Concrete Research 37 (2007) 735–742.
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Recycled Aggregate Concrete (RAC) is a type of concrete that incorporates recycled aggregates, which are typically sourced from construction and demolition waste. This practice offers several environmental, economic, and practical benefits, making it a popular choice in sustainable construction.
WhatsApp: +86 18221755073
The use of recycled concrete aggregate (RCA) in concrete as partial and full replacements of natural coarse aggregate is growing interest in the construction industry, as it reduces the demand for ...
WhatsApp: +86 18221755073
