Characterization of Recycled Aggregate Concrete SpringerLink

Characterization of Recycled Aggregate Concrete SpringerLink

10%  The coarse recycled concrete aggregate (RCA) used in this investigation was sourced from the tested concrete specimens like cubes, cylinders, prisms and beam specimens originally tested for various purposes in the concrete testing laboratory of IIT Roorkee. Total six numbers of concrete mixtures were prepared.

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Pore characterization of manufactured aggregates: recycled ...

10%  Jun 15, 2011  Accurate characterization of aggregates plays an important role in mixture proportioning of concrete mixes. Decisions made during the concrete design phase in terms of characterization techniques adopted for quantification of specific gravity or water absorption affect the development of fresh properties during the construction phase as well as impacting the long term performance of concrete.

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Microstructure of Recycled Aggregate Concrete SpringerLink

10%  Jun 17, 2018  The microstructural characterization of concrete prepared with RCA is described in this chapter. The interfacial transition zone (ITZ) between the aggregate and the cement mortar matrix is the most important interface in concrete. Particularly, this is very important in RAC, as the recycled aggregate concrete has more interfaces than normal ...

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Systematic Approach of Characterisation and Behaviour of ...

10%  This book focuses on the utilisation of construction waste material as coarse aggregate in making concrete. It discusses in detail the behaviour of recycled aggregate under impact load along with other structural applications, and explains the various quality-improvement techniques for recycled aggregate and recycled aggregate concrete (RAC).

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Geotechnical Characterization of Recycled Aggregates (RA ...

May 04, 2021  10%  India produces approximately 100 million tonnes of CD waste per annum. Attempts are being made to separately process the CD waste by segregating it from MSW stream. For this, CD waste processing...

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NJIT ETD: "Seismic characterization of recycled aggregate ...

Seismic characterization of recycled aggregate concrete: Author: Jamali, Amin: View Online: njit-etd2011-008 (xxiii, 154 pages ~ 7.2 MB pdf) Department: Department of Civil and Environmental Engineering: Degree: Doctor of Philosophy: Program: Civil Engineering: Document Type: Dissertation: Advisory Committee: Saadeghvaziri, M. Ala (Committee co ...

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Durability And Performance Characteristics Of Recycled ...

While studies on the engineering properties of concrete madewith laboratory- crushed recycled concrete aggregate abound (Frondistou–Yannas 1980; Hansen Narud 1983), only limited data is available on commercial grade recycled concrete aggregate, including concrete mix proportions, fresh concrete performance and durability characteristics.

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Characterization of Recycled Concrete Aggregate after ...

Jun 06, 2019  Recycled concrete aggregate (RCA) is a high-quality substitute for virgin aggregate as base or subgrade material in pavement construction. However, heavy metal leaching and/or production of high pH leachate are environmental risks commonly associated with the use of RCA.

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A Conceptual Model for Designing Recycled Aggregate ...

This book reports on the physical and mechanical characterization of Recycled Aggregate Concrete (RAC), produced through a partial-to-total replacement of ordinary aggregates with what have been dubbed Recycled Concrete Aggregates (RCAs). It proposes a theoretical framework for understanding the

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recycled aggregate use in concrete in india

Characterization of Recycled Aggregate Concrete SpringerLink. The coarse recycled concrete aggregate (RCA) used in this investigation was sourced from the tested concrete specimens like cubes, cylinders, prisms and beam specimens originally tested for various purposes in the concrete testing laboratory of IIT Roorkee. Get Price

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Factor affecting the bond quality of functionally graded ...

Jul 12, 2021  Xu Y, Chen J (2010) Study on preparation technology of recycled aggregate rapid repair concrete. In: 2010 International Conference on E-Product E-Service and E-Entertainment, ICEEE2010. IEEE, 1–4. 36. Huang H, Yuan Y, Zhang W, Gao Z (2019) Bond behavior between lightweight aggregate concrete and normal weight concrete based on splitting ...

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Microstructural Characterization of Concrete Prepared with ...

However, a systematic microstructural characterization of recycled aggregate concrete has not been reported. This work studies the use of fine recycled aggregate to replace fine natural aggregate in the production of concrete and reports the resulting microstructures.

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Characterization of recycled concrete aggregates - CORE

Main physical and chemical characteristics of RA have been measured in the RECYBÉTON project on coarse and fine recycled aggregates using experimental methods devoted to NA. Results show that traditional characterization procedures used for NA can be applied very satisfactorily to coarse RA.

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Physiochemical characterization of coarse aggregates in ...

Jun 01, 2013  This section stipulated that recycled concrete should confirm to BS 8500 part 1 and part 2 specifications (BSI, 2002a, BSI, 2002b) or ACI 555R . Moreover, in part 6 (i.e. property requirements) subsection 6.2.3, Portland cement concrete, with recycled aggregates was specified as one of the concrete types to be used in Qatar.

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(PDF) An Assessment of CD Waste Quality and Its Recycling ...

The comprehensive characterization of CD waste collected from two waste generation sites in India were carried out. The material analysed has different compositions and was selected with a view to determine their suitability for concrete industry as Recycled Aggregates (RA)

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Characterization of interfacial transition zone in ...

Oct 01, 2020  For the case of recycled aggregate concrete, there are many open pores and cracks on the surface of RCA due to the presence of the old cement pastes [29,63], the new cement pastes or cement hydration products may penetrate into the pores/cracks on the RCA surface. And thus, it may be inferred that the interfacial bonding of RCA-cement paste ...

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Recycled Concrete Aggregate Coefficient of Thermal ...

Jan 01, 2009  Despite a critical shortage of virgin aggregate, the availability of demolished concrete for use as recycled concrete aggregate (RCA) is increasing. Using this waste concrete as RCA conserves virgin aggregate, reduces the impact on landfills, decreases

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Use of Industrial Waste as Aggregate: Properties of Concrete

Nov 21, 2012  Abstract. As indicated in an earlier section, aggregates account for the largest part of the concrete volume and therefore play a substantial role in almost all concrete properties such as workability, strength, dimensional stability, and durability. Recently, several waste materials have been studied to be used as aggregate in concrete.

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Characterization of Asphalt Mixtures Containing Double ...

Asphalt mixtures made with recycled concrete aggregates (RCAs) derived from construction and demolition (CD) wastes exhibits inferior properties to mixtures containing natural aggregates only. This is mainly because of old cement mortar attached to RCA

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recycled aggregate concrete ppt download

Recycled Concrete Aggregates: A Review SpringerLink. 2013/03/29 Standards for concrete aggregate define a range within which the gradation of aggregate must lie in order to be acceptable aggregate for structural concrete.

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Seismic Analysis on Recycled Aggregate Concrete Frame ...

strain rate dependent material model for concrete was pro-posed by Pandey et al. (2006) for analysis of 3-D reinforced concrete structures under transient dynamic loads. The material property of recycled aggregate (Hansen 1986), the mechanical behavior of recycled aggregate con-crete (RAC) (ACI Committee 555 2002), and the constitu-

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Characterization of Recycled Concrete Aggregate as ...

One example of CWD with potential use in Pavement Infrastructure is Recycled Concrete Aggregate (RCA). RCA have been studied as suitable replacement to Natural Aggregates (NA) in asphalt pavement, results have shown good performance and important environmental and economic benefits from the use of RCA with respect to conventional aggregates.

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Characterization of Recycled Concrete Aggregate after ...

Jun 06, 2019  Recycled concrete aggregate (RCA) is a high-quality substitute for virgin aggregate as base or subgrade material in pavement construction. However, heavy metal leaching and/or production of high pH leachate are environmental risks commonly associated with the use of RCA.

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Vol.8, No.2, pp.165–172, June 2014 DOI 10.1007/s40069-014 ...

Characterization of Recycled Coarse Aggregate (RCA) via a Surface Coating Method J. S. Ryou, and Y. S. Lee* (Received March 5, 2013, Accepted January 1, 2014) Abstract: Recycled coarse aggregate (RCA) made from waste concrete is not a suitable structural material as it has high

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Characterization of Concrete with Recycled Aggregates ...

Jun 01, 2015  The characteristics of the new aggregate depend on many factors, including the compressive strength class of the original concrete. In the present paper, the influence of the class strength of returned concrete on the performance of new concrete made with recycled aggregates produced with the new technology has been investigated.

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Factor affecting the bond quality of functionally graded ...

Jul 12, 2021  Xu Y, Chen J (2010) Study on preparation technology of recycled aggregate rapid repair concrete. In: 2010 International Conference on E-Product E-Service and E-Entertainment, ICEEE2010. IEEE, 1–4. 36. Huang H, Yuan Y, Zhang W, Gao Z (2019) Bond behavior between lightweight aggregate concrete and normal weight concrete based on splitting ...

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MECHANICAL CHARACTERIZATION OF RECYCLED

MECHANICAL CHARACTERIZATION OF RECYCLED AGGREGATE IN RUBBERIZED CONCRETE Session: 2013 GROUP MEMBERS Mirza Sabahat Nasir 2013 -Civ-216 Saqib Nawaz 2013 -Civ-202 ... 2.2 Recycled Aggregate Concrete ...

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Seismic Analysis on Recycled Aggregate Concrete Frame ...

strain rate dependent material model for concrete was pro-posed by Pandey et al. (2006) for analysis of 3-D reinforced concrete structures under transient dynamic loads. The material property of recycled aggregate (Hansen 1986), the mechanical behavior of recycled aggregate con-crete (RAC) (ACI Committee 555 2002), and the constitu-

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Characterization of concrete composites with recycled ...

Sep 10, 2018  1. Introduction. Worldwide plastics production reached 322 million metric tons (MT) and an average yearly growth rate of nearly 4% in 2015, and the associated environmental pressure has reached a critical point .Despite persistent efforts by governments, businesses and individuals to increase plastic recovery and recycling rates, it is estimated that between 5 and 13 million metric tons end up ...

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The Chemical-Mineralogical Characterization of Recycled ...

The incorporation of a recycled concrete aggregate (RCA) as a replacement of natural aggregates (NA) in road construction has been the subject of recent research. This tendency promotes sustainability, but its use depends mainly on the final product’s properties, such as chemical stability. This study evaluates the physical and chemical properties of RCAs from two different sources in ...

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Mechanical characterization of waste-rubber-modified ...

Jun 15, 2016  Recycling waste concrete as either concrete blocks (Teng et al., 2015) or coarse aggregate has received increased attention in recent years (Shi et al., 2016). Extensive research has been conducted on the mechanical properties of recycled aggregate concrete (RAC), including studies on recycled concrete members and structures.

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A Review of Recycled Aggregates (RAP and RCA) as Unbound ...

Oct 21, 2017  This paper presents a review of unbound recycled materials, specifically recycled asphalt pavement (RAP) and recycled concrete aggregate (RCA), as road base course for sustainable highway construction. A total of fifteen recycled materials were collected for characterization

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PROPERTIES OF RECYCLED AGGREGATE CONCRETE

concrete. Keywords: recycled aggregate concrete, construction and demolition waste, concre-te properties, research. 1. INTRODUCTION Recent floods, that struck our our country and the region, have caused widespread damage, among which damage to building structures is dominant. Society is not only faced with the problems of fin-

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Characterization of interfacial transition zone in ...

Characterization of interfacial transition zone in concrete prepared with carbonated modeled recycled concrete aggregates. Author links open overlay panel Bao Jian Zhan a Dong Xing Xuan b Chi Sun Poon b Karen L. Scrivener c. Show more. Share. Cite.

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VENTILATED SANDWICH WALL PANEL FROM RECYCLED

Different types of recycled aggregate can be used for concrete production, so-called recycled aggregate concrete (RAC). Considering the fact that aggregate accounts for 60 – 80

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