Evaluation of durability properties of recycled aggregate concrete
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 process, uses, applications, and benefits.
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MAXIMIZING THE USE OF RECYCLED AGGREGATES FOR …
Main Uses: Pavement (RAP) ready-mix applications due to oils in the asphalt. Main Uses: Asphalt aggregate and/or supplement during hot-mix production. (blended at limited percentage) Granular base (or sub-base) Road base, backfill. Limited use: In concrete mix.
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(PDF) CONCRETE USING RECYCLED AGGREGATES
There are three types of treatment under consideration for recycled aggregate (1) Abrasion of Recycled Aggregate (RA) (2) Cement slurry coating of RA (3) Chemical immersion of RA. The results indicate that concrete produced with higher percentage of fine RA shows less workability in comparison to control concrete.
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Sustainable Materials: A Review of Recycled Concrete Aggregate
Surface image of natural and recycled concrete aggregates (a, c, e: Recycled concrete aggregate; b, d, f: Natural aggregate) (64-66). Figures - uploaded by Ali Mardani Author content
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Recycled Aggregate Concrete (RAC) | PPT
Recycled Aggregate Concrete (RAC) Oct 27, 2020 • Download as PPTX, PDF •. 1 like • 613 views. Mohammad Aquib. Follow. The comparative study of recycled aggregate and natural aggregate also the comparison between recycled aggregate concrete (RAC) and Natural aggregate concrete (NAC) in various aspects. Read …
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Recycled Aggregates
Recycled Aggregate Characteristics. The crushing characteristics of hardened concrete are similar to those of natural rock and are not significantly affected by the grade or quality of the original concrete. Recycled concrete aggregates produced from all but the poorest quality original concrete can be expected to pass the same tests required ...
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Strength and Durability Evaluation of Recycled Aggregate Concrete
This paper discusses the suitability of producing concrete with 100 % recycled aggregate to meet durability and strength requirements for different applications. Aggregate strength, gradation, absorption, specific gravity, shape and texture are some of the physical and mechanical characteristics that contribute to the strength and durability …
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Recycled Aggregates for Concrete Production: State-of …
Type 1 RA can be associated to a RCA: it contains at least 90 % of concrete and natural aggregates, not more than 10 % of clinker, non-pored bricks, sand-lime bricks, less than 2 % of other mineral materials and less than 1 % of asphalt. Foreign substances such as glass, metal slag, etc. should be less than 0.2 %.
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Self-compacting concrete with recycled concrete aggregate …
Download : Download high-res image (425KB) Download : ... (SCC) made with coarse and/or fine Recycled Concrete Aggregate (RCA) has been evaluated. On the one hand, if the amount of the finest particles of the aggregates and the effective water-to-binder ratio are adjusted, a fast-mixing process has been proven to obtain a …
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PROPERTIES OF CONCRETE MADE WITH RECYCLED COARSE AGGREGATES FROM OLD
Recycled aggregate concrete is normally classified as light weight concrete and recommended for use in production of low-grade non-structural elements. This study examined the properties of ...
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(PPT) Recycled concrete using e-waste.pptx
Electronic waste or e-waste defines rejected electrical or electronic devices. Secondhand electronics which are destined for recover, resale, salvage, recycling, or disposal are also considered e-waste. Electronic waste is an emerging concern posing serious contamination problems to the human and the environment.
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Aggregate
182 likes • 13,152 views. David Grubba. Lesson: Concrete Technology - Building Materials The quality of aggregate affect the durability and strength of concrete. Since about 3/4 of the volume of concrete is occupied by aggregate. Read more. 1 of 66. Aggregate - Concrete Technology - Download as a PDF or view online for free.
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Geopolymer concrete ppt | PPT
Geopolymer concrete ppt. Dec 11, 2016 • Download as PPTX, PDF •. 92 likes • 60,675 views. V. Vibhanshu Singh. Geopolymer concrete is an innovative, eco-friendly construction material. It is used as replacement of cement concrete. In geopolymer concrete cement is not used as a binding material. Fly ash, silica-fume, or GGBS, along …
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Evaluation of the physical and mechanical properties of concrete …
Figure 7 shows that when replacing the recycled concrete aggregate with natural aggregate in proportions of 10%, 20%, 30% and 40%, there is a decrease in its unit weight of 0.41%, 1.06%, 1.54% and 1.63%, respectively, compared to the reference concrete; likewise, 3 tests were carried out for each addition percentage to analyze its …
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Recyled aggregates (Concrete Technology and Building Materials) | PPT
Recyled aggregates (Concrete Technology and Building Materials) Recycled aggregates can be used as a substitute for natural aggregates in construction. They are produced from construction and demolition waste and have lower strength but also lower density than natural aggregates. While recycled aggregates provide …
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Evaluation of techniques for enhancing recycled concrete aggregates
1. Introduction. Concrete has become the most widely used civil engineering material in the world because it is cheap, durable, very malleable and has excellent mechanical properties [1], [2], [3].Aggregates occupy about 70% of the volume of concrete [4], [5].High demand for concrete has also led to a high demand for aggregates, …
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Sustainable concrete | PPT
Sustainable concrete. Sustainable concrete uses less energy and produces fewer carbon emissions than regular concrete. It incorporates waste and recycled materials like fly ash and slag to replace portions of cement. Using these supplementary cementitious materials can increase sustainability by reducing embodied …
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Recycled Concrete Aggregate in Construction Part II | PPT
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies …
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(PDF) AN INTRODUCTION TO RECYCLED AGGREGATE CONCRETE …
AN INTRODUCTION TO RECYCLED AGGREGATE CONCRETE: PRODUCTION AND APPLICATIONS. November 2015. International Journal of Research 02 (11):296-303. Authors: Piyush Sharma. Amity University.
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Recycled Aggregate Concrete: Applications, Advantages
Disadvantages of Recycled Aggregate. Downgrading of quality of concrete. Increase in water absorption capacity ranging from 3% to 9%. Decrease in compressive strength of concrete (10-30%) Reduces workability of concrete. Lack of specifications and guidelines. Less durability of RAC, however few papers have shown an improvement in the …
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Recycled Aggregate: A Viable Solution for Sustainable Concrete …
Construction and demolition activities consume large amounts of natural resources, generating 4.5 bi tons of solid waste/year, called construction and demolition waste (C&DW) and other wastes, such as ceramic, polyethylene terephthalate (PET), glass, and slag. Furthermore, around 32 bi tons of natural aggregate (NA) are extracted …
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Aggregates in Civil Engineering
Definitions. Aggregate. Granular material of mineral composition such as. sand, gravel, shale, slag or crushed stone. Coarse Aggregate. Predominantly retained on the 4.75mm (4) sieve. Fine Aggregate. Completely passing through the 9.5mm (3/8) sieve. 9.
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"Recycled Aggregate Concrete as Structural Material"
Results have also shown that, compared to control corbels with normal aggregate, using replacement ratio of recycled aggregate decreased the ultimate load capacity of the RC corbels by 9.64% ...
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partial replacement of fine aggregate by glass powder in concrete | PPT
75 likes • 24,047 views. Parthi Ban. Follow. partial replacement of fine aggregate by glass powder, is on going project in india, glass powder enhance the strength of the concrete. Read more. 1 of 43. Download now. partial replacement of fine aggregate by glass powder in concrete - Download as a PDF or view online for free.
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A STUDY ON RECYCLED CONCRETE AGGREGATES
A STUDY ON RECYCLED CONCRETE AGGREGATES PAVAN P S 1, BABITHA RANI H,DEEPIKA GIRISH, RAGHAVENDRA K M 2, VINOD P N 1,DUSHYANTH.V.BABU.R,SHAIK NUMAN1 1Assistant Professor, Department of Civil Engineering, SET, Jain University. 2Student, Department of Civil Engineering, SET, Jain University. Abstract …
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CIVIL PROJECT. PPT RECYCLED AGGREGATE CONCRETE
8182019 CIVIL PROJECT. PPT RECYCLED AGGREGATE CONCRETE 120 RECYCLED AGGREGATE CONCRETE IN RIGID PAVEMENTS PROJECT BY : HITESH BHOI KAILASH KUMAR GUPTA MD JUNAID NOSHIN PRAVEEN…
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AN EXPERIMENTAL INVESTIGATION USING …
Download full-text PDF Read full-text. Download full-text PDF. Read full-text. Download citation. Copy link Link copied. ... (2016) "Seismic analysis on recycled aggregate concrete .
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A REVIEW OF RECYCLED CONCRETE …
A REVIEW OF RECYCLED CONCRETE AG GREGATES. AS A SUSTAINABLE CONSTRUCTIO N MATERIAL. Rekha Ramp it 1*, Jovanca Sm ith 2 and Indraj it Ray 3. 1,2,3 Faculty of Engineering, The …
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19 Best Aggregate-Themed Templates for PowerPoint
CrystalGraphics creates templates designed to make even average presentations look incredible. Below you'll see thumbnail sized previews of the title slides of a few of our 19 best aggregate templates for PowerPoint and Google Slides. The text you'll see in in those slides is just example text.
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RECYCLED AGGREGATE CONCRETE / SLIDE SHARE / PPTX | PPT
It defines RAC as concrete produced using recycled concrete aggregates. These aggregates are produced by crushing waste concrete. The document outlines the characteristics, classification, production process, uses, benefits and conclusions regarding RAC. It finds that RAC has lower strength but can be used for …
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