Recycled Aggregate Ncrete Journals

The Chemical-Mineralogical Characterization of Recycled Concrete

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 …

(PDF) A REVIEW OF RECYCLED CONCRETE AGGREGATES …

Recycled concrete is characterised by replacing different percentages of natural coarse aggregate with recycled coarse aggregate (0, 20, 50 and ) and two different water-to-cement ratios .50 ...

Sustainable Materials: A Review of Recycled Concrete …

In this paper, a comprehensive literature review was conducted on the utilization of recycled concrete aggregate (RCA), which is the dominant construction and demolition …

Mechanical performance of recycled aggregate …

The utilization of recycled concrete aggregate (RCA) can reduce the environmental impact and decreases the cost of concrete. In this study, a comprehensive assessment of self-consolidating ...

High performance concrete using recycled aggregate, Microsilica …

Recycled aggregate concrete without fibre dosage (phase 2) performed satisfactorily up to 25% replacement, while 50% replacement produced 97% of the target compressive strength, which indicates ...

(PDF) Effect of Recycled Concrete Aggregates on

Taking recycled aggregate as object, explores the change regularity of impact factors such as water reducing agent, cement consumption, sand ratio, water cement ratio and aggregate cement ratio ...

Strength Characteristics of Recycled Aggregate Concrete by …

The important co nstruction material is the cement co ncrete . which ... [28], showing that compressive strength decreases with increasing recycled aggregate ... Australian Journal of Civil ...

Green Concrete with High-Volume Fly Ash and Slag with Recycled

This paper proposes three new types of sustainable concretes in an attempt to further reduce the carbon footprint. In Type I, a total of 4 concrete mixes were made with a high volume GGBFS with 60, 70, 80, and 90% replacement of ordinary portland cement (OPC), recycled water (RW), and recycled aggregate (RA).

Use Of Recycled Aggregate In Concrete

International Journal of Engineering Research & Technology (IJERT) Vol. 2 Issue 1, January- 2013 ISSN: 2278-0181 1 IJERTIJERT. ... Recycled aggregate reduces the impact of waste on environment. By using some percentage in construction sector, cost is …

Prediction of properties of recycled aggregate concrete …

Recycled aggregate concrete2.1. Recycled aggregate. Recycled aggregates include coarse recycled aggregates (CRA) with a typical particle size range of 4.75–31.5 mm and fine recycled aggregates (FRA) between 0.16 and 4.75 mm [27]. Since RA obtained from CDW contains hardened cement paste or mortar and the surface of RA is rough, many micro ...

Recycled Aggregates: A Sustainable Solution of …

The recycled aggregates used were classified into three different types according to their measured specific gravity and water absorption, namely, RG I for recycled coarse aggregate having a ...

(PDF) Residual Compressive Strength of …

Granite Aggregate (GA) and Recycled brick aggregate (RBA) were used as coarse aggregate. The same procedure adopted by Rekha et al [13] was used to prepare the recycled brick aggregate. M20 grade ...

A REVIEW ON INFLUENCE OF RECYCLED AGGREGATES …

IJCRT2010136 International Journal of Creative Research Thoughts (IJCRT) 1035 A REVIEW ON INFLUENCE OF RECYCLED AGGREGATES IN PERVIOUS CONCRETE 1Aaliya Navaz 2Anju Paul ... Increase in recycled aggregate content increases the permeability and decreases the strength. Percentage increase in permeability for 9.5mm aggregate size is ...

(PDF) Evaluating The Compressive Strength Of Recycled Aggregate

In this work, the compressive strength of concrete made from recycled aggregate is studied and an intelligent prediction proposed by using the novel artificial neural network (ANN), which utilized ...

Prediction of the chloride diffusivity of recycled aggregate …

The incorporation of recycled coarse aggregate (RCA) could reduce recycled aggregate concrete(RAC) durability. Chlorine penetration is an important indicator for concrete durability evaluation. In order to conduct a systematic study of chloride permeation in RAC, this paper demonstrates the feasibility of artificial neural network (ANN) in the study of chloride ion …

High Strength Concrete Using Recycled Aggregate

This study is conducted (1) to examine the influence of recycled aggregate on interfacial transition zone (ITZ), strength, chloride penetration, and carbonation of concrete, and (2) to propose a ...

Use of recycled concrete aggregate in concrete: A review

(2013) Safiuddin et al. Journal of Civil Engineering and Management. 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 aggregate. In addition, ...

Numerical Discrete-Element Method Investigation on Failure …

This study numerically investigates the failure processes of recycled aggregate concrete (RAC) and natural aggregate concrete (NAC). A two-dimensional simulation based on a discrete-element method (DEM) is conducted with a …

Use of fine recycled concrete aggregates in concrete: A …

Higher plastic shrinkage of the concrete with 30% fRCA (mix 30RS0RA) compared to the control sample and concrete with coarse recycled concrete aggregates has been …

USE OF RECYCLED CONCRETE AGGREGATE IN …

USE OF RECYCLED CONCRETE AGGREGATE IN CONCRETE: A REVIEW Md. SAFIUDDINa, Ubagaram Johnson ALENGARAMb, Md. Moshiur RAHMANb, ... Journal of Civil Engineering and Management, 2013, 19(6): 796–810 797 (Table 1) that are 5–10% lower than that of NCA (ECCO 1999). 1.1.3. Bulk density

(PDF) HARDENED PROPERTIES OF RECYCLED AGGREGATE …

AL-MUKHTAR JOURNAL OF ENGINEERING RESEARCH ISSN online: ... durability properties of recycled aggregate co ncrete . ... The recycled aggregate concrete (RAC) was prepared by using 25%, 35% and 55% ...

(PDF) "Influence of Recycled Concrete Aggregates on

Recycled aggregate (RA) obtained from crushed concrete rubble, instead of being stored, can be reused in building industry. Study on the possibility of reuse of concrete from demolition has been ...

Recycling of Brick Aggregate Concrete as Coarse Aggregate | Journal …

Also, in-situ strength of an old structure has been compared with the compressive strength of recycled aggregate concrete made with the recycled aggregate collected from the same structure. Based on this investigation, it is revealed that recycled brick aggregate can be used as coarse aggregate for making concrete of strength 20.7 to 31.0 MPa.

(PDF) A Study on Properties of Recycled Coarse …

Recycled coarse aggregate exhibits lower values for loose and... | Find, read and cite all the research you need on ResearchGate ... journal citation and DOI. ... Code for design of co ncrete ...

Modeling and predicting chloride diffusion in recycled aggregate

DOI: 10.1016/j.conbuildmat.2020.120620 Corpus ID: 225032275; Modeling and predicting chloride diffusion in recycled aggregate concrete @article{Yu2020ModelingAP, title={Modeling and predicting chloride diffusion in recycled aggregate concrete}, author={Yong Yu and Lan Lin}, journal={Construction and Building Materials}, year={2020}, volume={264}, pages={120620}, …

Recycled aggregate concrete from large-scale production to …

The use of recycled concrete aggregates for new concrete production is an important avenue to increase the sustainability of concrete. While numerous studies have …

Modeling and predicting chloride diffusion in recycled aggregate

Here P c denotes the area percentage of coarse aggregate with a size D less than D 0; P k represents the fraction of the total area occupied by aggregate pieces; D max is the maximum aggregate size. Note here that the aggregate size is defined as its effective circular diameter or the ellipse's short axis length [32].When P k and D max are taken as 49.4% and …

Use of recycled concrete aggregate in concrete: a …

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 aggregate. ... Strengths of …

(PDF) Recycled Glass Concrete: Coarse and Fine Aggregates …

Recycled waste glasses were used as coarse and fine aggregates replacement in concrete. Coarse aggregates were replaced with Green Bottles coarse aggregates at third, half, two thirds, and ...

(PDF) Experimental Study on Recycled Concrete Aggregates …

On recycled aggregate concrete (RAC), numerous investigations have been conducted [9,[52][53][54][55][56][57][58] [59] [60][61]. Batha et al. [62] performed a thorough analysis of the physical and ...