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Evaluation of pre coated recycled concrete aggregate

Evaluation of pre coated recycled concrete aggregate

Evaluation of pre-coated recycled concrete aggregate for ...

Mar 01, 2012  Highlights We produce pre-coated recycled concrete aggregate (PCRCA). It can ease aggregate shortage and reinforce the strength. The optimum coating thickness is 0.25 mm. The PCRCA have highly pores contents, water absorption and asphalt contents. The tests of HMA with PCRCA are satisfied by the specification requirements.

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Evaluation of pre-coated recycled aggregate for concrete ...

Jun 01, 2013  The test results show that physical performance of pre-coated recycled aggregate was within the range of specification requirement and surface-coated recycled aggregate with paste thickness of 0.035 mm resulted in a higher physical performance. In addition, compressive strength of concrete increased as the water to cement ratio of coating paste ...

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Evaluation of Recycled Concrete for Use as Aggregate in ...

This study evaluated the use of recycled concrete as coarse aggregate in new concrete pavements. Recycled concrete aggregate (RCA) produced from demolished pavements in three geographically-dispersed locations in Washington state were used to perform testson aggregate characte ristics, fresh concrete propertiesand hardened concrete properties.

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Evaluation of recycled concrete aggregate in asphalt mixes ...

Jan 15, 2018  10%  Lee CH, Du JC, Shen DH (2012) Evaluation of pre-coated recycled concrete aggregate for hot mix asphalt. Constr Build Mater 28(1):66–71. Article Google Scholar 49. AASHTO T209 (2012) Standard method of test for theoretical max specific gravity and density of hot mix asphalt paving mixtures. AASHTO, Washington, D.C.

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Evaluation of the double coated recycled concrete ...

May 30, 2018  Highlights. We developed new state of the art double coating technique (DCT). RCAs were coated with cement slag paste and Sika Tite-BE to improve its strength and durability. Mixtures with 0%, 20%, 40% and 60% of double coated recycled concrete aggregates (DCRCAs) were evaluated. The developed DCT produced TSR higher than 98%.

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Evaluation of Recycled Concrete, Open-Graded Aggregate ...

Evaluation of Recycled Concrete, Open-Graded Aggregate, and Large Top-Size Aggregate Bases RICHARD D. BARKSDALE, SAMIR Y. ITANI, AND TERRYE. SWOR Eight unstabilized aggregate ba es were investigated: three re cycled concrete rnateiial , an open-graded cru hed dolomite drainage material, large top-size crushed dolomite dense-graded ...

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Strength and Durability Evaluation of Recycled Aggregate ...

Keywords: recycled aggregate, concrete properties, physical properties, mechanical properties. 1. Introduction Utilizing recycled aggregate is certainly an important step towards sustainable development in the concrete industry and management of construction waste. Recycled aggregate (RA) is a viable alternative to natural aggregate, which helps

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Evaluation of the double coated recycled concrete ...

RCAs were coated with cement slag paste and Sika Tite-BE to improve its strength and durability. Mixtures with 0%, 20%, 40% and 60% of double coated recycled concrete aggregates (DCRCAs) were evaluated. The developed DCT produced TSR higher than 98%. DCRCA-mixtures achieved higher stiffness than those required for intermediate mix.

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Evaluation of recycled concrete aggregate in asphalt mixes ...

Jan 15, 2018  Lee CH, Du JC, Shen DH (2012) Evaluation of pre-coated recycled concrete aggregate for hot mix asphalt. Constr Build Mater 28(1):66–71. Article Google Scholar 49. AASHTO T209 (2012) Standard method of test for theoretical max specific gravity and density of hot mix asphalt paving mixtures. AASHTO, Washington, D.C.

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Evaluation of Effects of Recycled Concrete Aggregate on ...

Jan 01, 2011  This use of recycled concrete aggregate (RCA) as an HMA aggregate can be beneficial for constructing low-volume roads. RCA differs from virgin aggregates in that there is cement paste on the surface of the recycled concrete. In this study, 5% RCA was evaluated as an HMA aggregate.

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Performance Evaluation of Recycled-Concrete Aggregates and ...

Oct 10, 2020  Mechanical foaming of bitumen is a popular technique employed to reduce the viscosity of binder for ensuring coating of aggregates at lower temperature. The potential of this technique is being utilized widely for producing sustainable reclaimed-asphalt pavement (RAP) inclusive mixtures, but usage of recycled concrete-aggregates (RCA) in foamed ...

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Ductility Evaluation of Damaged Recycled Aggregate ...

Nov 23, 2020  The inherent defects of recycled aggregate concrete (RAC) include the complex interfacial transition zone (ITZ) and the many micro-cracks that appear during its producing process, which result in some inferior mechanical properties compared with natural aggregate concrete (NAC). This drawback usually prevents RAC from being selected for structural purposes.

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Evaluation of fatigue cracking of hot-mix asphalts ...

ABSTRACT Coarse recycled concrete aggregates (CRCAs) were used as substitutes in asphalt mixtures. These aggregates have a layer of porous cement mortar on their surfaces that impairs their physical and mechanical properties. Therefore, their surfaces were coated with waste plastic bottles to improve their quality. Fatigue cracking, as a critical failure, in asphalt mixtures containing 0, 15 ...

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[PDF] Utilization of Recycled Concrete Aggregates in Stone ...

Recycled concrete aggregate (RCA) is considered as one of the largest wastes in the entire world which is produced by demolishing concrete structures such as buildings, bridges, and dams. It is the intention of scientists and researchers, as well as people in authority, to explore waste material recycling for environmental and economic advantages.

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Aggregates for Concrete - Memphis

Recycled concrete, or crushed waste concrete, is a feasible source of aggregates and an economic reality, especially where good aggregates are scarce. Conven-tional stone crushing equipment can be used, and new equipment has been developed to reduce noise and dust. Aggregates must conform to certain standards for

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Utilization of Recycled Concrete Aggregates in Stone ...

Dec 17, 2014  Recycled concrete aggregate (RCA) is considered as one of the largest wastes in the entire world which is produced by demolishing concrete structures such as buildings, bridges, and dams. It is the intention of scientists and researchers, as well as people in authority, to explore waste material recycling for environmental and economic advantages.

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Mechanical Performance Evaluation of Self-Compacting ...

Aug 04, 2017  This paper intends to evaluate the feasibility of reintroducing recycled concrete aggregates in the precast industry. The mechanical properties of self-compacting concrete (SCC) with incorporation of recycled aggregates (RA) (coarse recycled aggregates (CRA) and fine recycled aggregates (FRA)) from crushed precast elements were evaluated.

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DeepDyve - Unlimited Access to Peer-Reviewed Journals

DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Optimizing the properties of treated recycled aggregate ...

Nov 06, 2020  Recycled aggregate (RA) acquired from construction and destruction squander is one such way to conserve natural resources. In this paper, recycled aggregate is replaced with natural aggregate. But ...

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Concrete aggregate legal definition of concrete aggregate

Performance evaluation of stone mastic asphalt and hot mix asphalt mixtures containing recycled concrete aggregate. Shen, "Evaluation of pre-coated recycled concrete aggregate for hot mix asphalt," Construction and Building Materials, vol.

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Journal articles: 'Crushed glass' – Grafiati

Consult the top 50 journal articles for your research on the topic 'Crushed glass.' Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

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Evaluation of recycled concrete aggregate in asphalt mixes ...

Jan 15, 2018  Lee CH, Du JC, Shen DH (2012) Evaluation of pre-coated recycled concrete aggregate for hot mix asphalt. Constr Build Mater 28(1):66–71. Article Google Scholar 49. AASHTO T209 (2012) Standard method of test for theoretical max specific gravity and density of hot mix asphalt paving mixtures. AASHTO, Washington, D.C.

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Strength and Durability Evaluation of Recycled Aggregate ...

May 14, 2015  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 of concrete.

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Ductility Evaluation of Damaged Recycled Aggregate ...

Nov 23, 2020  The inherent defects of recycled aggregate concrete (RAC) include the complex interfacial transition zone (ITZ) and the many micro-cracks that appear during its producing process, which result in some inferior mechanical properties compared with natural aggregate concrete (NAC). This drawback usually prevents RAC from being selected for structural purposes.

get price

Utilization of Recycled Concrete Aggregates in Stone ...

Dec 17, 2014  Recycled concrete aggregate (RCA) is considered as one of the largest wastes in the entire world which is produced by demolishing concrete structures such as buildings, bridges, and dams. It is the intention of scientists and researchers, as well as people in authority, to explore waste material recycling for environmental and economic advantages.

get price

Laboratory Evaluation of Using Recycled Marble Aggregates ...

Jun 06, 2013  Using waste aggregate as an aggregate replacement reduces the extraction of new aggregate, pressing demand on existing landfill sites, and emissions of wastes into the environment. This study assessed the use of recycled marble aggregates (RMA) as replacement for virgin aggregates in hot mix asphalt (HMA).

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Aggregates for Concrete - Memphis

Recycled concrete, or crushed waste concrete, is a feasible source of aggregates and an economic reality, especially where good aggregates are scarce. Conven-tional stone crushing equipment can be used, and new equipment has been developed to reduce noise and dust. Aggregates must conform to certain standards for

get price

Optimizing the properties of treated recycled aggregate ...

Nov 06, 2020  Recycled aggregate (RA) acquired from construction and destruction squander is one such way to conserve natural resources. In this paper, recycled aggregate is replaced with natural aggregate. But ...

get price

[PDF] Utilization of Recycled Concrete Aggregates in Stone ...

Recycled concrete aggregate (RCA) is considered as one of the largest wastes in the entire world which is produced by demolishing concrete structures such as buildings, bridges, and dams. It is the intention of scientists and researchers, as well as people in authority, to explore waste material recycling for environmental and economic advantages.

get price

[PDF] Influence of fine recycled concrete aggregates on ...

Abstract Fine recycled concrete aggregates (FRCA) also called recycled sand, having particle sizes smaller than 5 mm, are essentially composed of mortar and hardened cement paste. Therefore they induce a large water demand which makes them hard to recycle into mortar and concrete. In this paper, the properties of mortars containing FRCA have been studied, including fresh properties, mechanical ...

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EVALUATION OF 1977 ASPHALT CONCRETE SPRINKLE

Lightweight aggregate (Haydite), quartzite, coarse grained dolomite and non-polishing limestone sprinkle aggregates were included in the 1977 experimental work. Quality tests, grada-tions, amounts of coating asphalt, application rates, costs and types of sprinkle aggregate for the different projects are presented in

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DeepDyve - Unlimited Access to Peer-Reviewed Journals

DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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SciELO - Brasil - Avaliação da durabilidade de concretos ...

ZHIHUI, SHOUDE, LINGCHAO et al. [21 21 ZHIHUI, Z., SHOUDE, W., LINGCHAO, L., et al. “Evaluation of pre-coated recycled aggregate for concrete and mortar”, Construction and Building Materials, v. 43, pp. 191–196, 2013.] observaram que a absorção de água dos ARC pré-revestidos diminuiu com o aumento da relação a/c da pasta, enquanto a ...

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Aggregates for Concrete - Greenspec

Key points. • ‘Aggregate’ is a term for any particulate material. It includes gravel, crushed stone, sand, slag, recycled concrete and geosynthetic aggregates. Aggregate may be natural, manufactured or recycled. • Aggregates make up some 60 -80% of the concrete mix. They provide compressive strength and bulk to concrete.

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Qualified Products, Qualified Materials, Engineering

Feb 05, 2020  Aggregates Also available is a database of Aggregate Producers. The database contains producers and corresponding sizes of aggregate materials that are qualified to supply New Jersey Department of Transportation projects along with the average test values of the latest results. Data changes are noted in the remarks column.

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