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Enhancement of properties of recycled coarse aggregate concrete

The compressive strength of RCA concrete is found to be increased by about 20% when the cell concentration of B. subtilis is 10 6 cells/ml. The capillary water absorption as well as drying shrinkage of RCA are reduced when bacteria is incorporated.

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Enhancement of properties of recycled coarse

the compressive strength of rca concrete is found to be increased by about 20% when the cell con- centrationof b.subtilis is106cells/ml.thecapillarywaterabsorptionas well as drying shrinkage of rca...

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Enhancement of properties of recycled coarse aggregate

Mar 16, 2016  The experimental investigation was carried out to evaluate the improvement of the compressive strength, capillary water absorption, and drying shrinkage of RCA concrete

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Enhancement of properties of recycled coarse aggregate concrete

Mar 16, 2016  (2016). Enhancement of properties of recycled coarse aggregate concrete using bacteria. International Journal of Smart and Nano Materials: Vol. 7, No. 1, pp. 22-38.

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Enhancement of properties of recycled coarse aggregate concrete

The compressive strength of RCA concrete is found to be increased by about 20% when the cell concentration of B.cohnni is 107 cells/. The improvement of RCA concrete is conrmed to be

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Enhancement of recycled aggregate properties by

May 01, 2018  This is mainly because compared with natural aggregate (NA), RCA has lower density, higher water absorption, higher porosity and lower mechanical properties, which have

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Performance enhancement of recycled concrete

They found that it was effective in removing the adhered mortar, and increased the compressive strength of the recycled aggregate concrete; but the strength increase was about 7% at 28

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Studies on performance enhancement of recycled

Aug 30, 2018  this paper investigates the modification effect of nanosilica and ureolytic/non-ureolytic bacteria at the interfacial transition zone (itz) of ra and recycled aggregate concrete

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Effect of natural coarse aggregate type on the

Table 4 Properties of recycled coarse aggregates Properties RG45 RG65 RQ45 RQ65 RB45 RB65 RS45 RS65 Specific gravity (kg/dm3) 2.52 2.51 2.37 2.35 2.66 2.65 2.45 2.44

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Enhancement of properties of recycled coarse aggregate

Recycled coarse aggregate Concrete that has been removed is often seen as worthless and dumped as demolition material after the destruction of ancient roadways and structures. Used concrete aggregates (RCAs) are created by removing old concrete from the ground and breaking it

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Enhancement of properties of recycled coarse aggregate

4.4 Properties of fine and recycled coarse aggregate Locally available sand (fine aggregate) conforming to IS: 383-1970 [46] is collected from a nearby river and used in the present study. For recycled coarse aggregate, the parent concrete is crushed through a mini jaw crusher maintaining the size of aggregate between 20 and 4.75 mm.

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Enhancement of properties of recycled coarse aggregate

Mar 16, 2016  (2016). Enhancement of properties of recycled coarse aggregate concrete using bacteria. International Journal of Smart and Nano Materials: Vol. 7, No. 1, pp. 22-38.

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Enhancement of properties of recycled coarse aggregate

Enhancement of properties of recycled coarse aggregate concrete (RCAC) using non-ureolytic bacteria (non-UB) : A Review 1Sonia Das, 2Abhishek Sharma 1M.Tech. Scholar, 2Assistant Professor Civil Engineering Department Structural Engineering CBS

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Enhancement on the properties of recycled coarse aggregate

Jun 01, 2021  DOI: 10.1016/J.MATPR.2021.06.009 Corpus ID: 236368108; Enhancement on the properties of recycled coarse aggregate through bio-deposition – An experimental study @article{Jagan2021EnhancementOT, title={Enhancement on the properties of recycled coarse aggregate through bio-deposition – An experimental study}, author={S. Jagan and T. R.

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[PDF] Enhancement of properties of recycled coarse aggregate

At first glance, the air content of RCA concrete seems to be higher in the first phase of mixing than it appears to be in the control mixture of RCA concrete at the same stage of mixing. Most likely, increasing the length of time it takes for more air to escape from the concrete mix will help to reduce this problem. You will need to do more research in order to make informed decisions

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Property enhancement of recycled coarse aggregate using bio

This paper addresses mechanical properties and length change performance of the recycled aggregate concretes(RAC) in which natural coarse was replaced by recycled coarse aggregate(RCA) by ...

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Enhancement of properties of recycled coarse aggregate

Due to rapid construction, necessity for raw materials of concrete, especially coarse aggregate, tends to increase the danger of early exhaustion of the natural resources. An alternative source of raw materials would perhaps delay the advent of this early exhaustion. Recycled coarse aggregate (RCA) plays a great role as an alternative raw material that can replace the natural

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Properties Enhancement of Recycled Aggregate Concrete

In this study, the intrinsic properties of recycled coarse aggregates (RC), associated with bonded mortar, were modified with two different pretreatment techniques viz-a-viz HCl pretreatment and ...

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Performance of Recycled Coarse Aggregate Concretes with

Apr 25, 2022  For the performance enhancement studies of RCA based concretes, cubes were cast keeping the recycled aggregate as 50% replacement of natural/virgin aggregates and basalt fiber dosages (volume fraction) were varied from 0 to 2%. ... Influence of field recycled coarse aggregate on properties of concrete. Mater Struct 44(1):205–220. CrossRef ...

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Effects of recycled aggregates on properties of plastic concrete

Jul 07, 2022  This study explored the effects of the recycled fine and coarse aggregates (RFA and RCA) on the properties of the plastic concrete with mixing proportions designed by densified mixture design algorithm (DMDA). The recycled aggregates partially replaced the natural aggregates by 10–50% volume and the fly ash was used to minimize the voids.

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Properties enhancement of recycled aggregate concrete

Properties enhancement of recycled aggregate concrete through pretreatment of coarse aggregates – Comparative assessment of assorted techniques Author: Yongjae Kim, Asad Hanif, Syed M.S. Kazmi, Muhammad J. Munir, Cheolwoo Park Source: Journal of cleaner production 2018 v.191 pp. 339-349 ISSN: 0959-6526 Subject:

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Evaluation of the Effect of Recycled Polypropylene as Fine Aggregate

Nowadays, the re-use and recycling of industrial wastes to reduce the environmental impact and landfill problems are the main concerns of researchers. Plastics are one of the main waste materials worldwide, with considerable impacts on health and environmental conditions. Recycling plastic wastes in the concrete industry is one of the adopted ways to reduce such impact and

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The Utilization of Palm Kernel Shells and Waste Plastics in

1 天前  Introduction. Population growth has led to an unexpected increase in heavy traffic on our roads. The axle load which often goes beyond the designed capacity of constructed pavement has hastened the deterioration of asphaltic pavement and this trend is witnessed all over the world. Asphalt concrete generally named asphalt, is a composite material consisting ofnatural

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Enhancement of properties of recycled coarse aggregate

Recycled coarse aggregate Concrete that has been removed is often seen as worthless and dumped as demolition material after the destruction of ancient roadways and structures. Used concrete aggregates (RCAs) are created by removing old concrete from the ground and breaking it

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Enhancement of properties of recycled coarse aggregate

Enhancement of properties of recycled coarse aggregate concrete (RCAC) using non-ureolytic bacteria (non-UB) : A Review 1Sonia Das, 2Abhishek Sharma 1M.Tech. Scholar, 2Assistant Professor Civil Engineering Department Structural Engineering CBS

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Enhancement of properties of recycled coarse aggregate

ABSTRACT Due to rapid construction, necessity for raw materials of concrete, especially coarse aggregate, tends to increase the danger of early exhaustion of the natural resources. An alternative source of raw materials would perhaps delay the advent of this early exhaustion. Recycled coarse aggregate (RCA) plays a great role as an alternative raw material that can

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Enhancement of properties of recycled coarse aggregate

Due to rapid construction, necessity for raw materials of concrete, especially coarse aggregate, tends to increase the danger of early exhaustion of the... DOAJ is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals.

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Enhancement of properties of recycled coarse aggregate

Mar 16, 2016  Due to rapid construction, necessity for raw materials of concrete, especially coarse aggregate, tends to increase the danger of early exhaustion of the natu... Enhancement of properties of recycled coarse aggregate concrete using bacteria

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Properties enhancement of recycled aggregate concrete

Properties enhancement of recycled aggregate concrete through pretreatment of coarse aggregates – Comparative assessment of assorted techniques Author: Yongjae Kim, Asad Hanif, Syed M.S. Kazmi, Muhammad J. Munir, Cheolwoo Park Source: Journal of cleaner production 2018 v.191 pp. 339-349 ISSN: 0959-6526 Subject:

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Enhancing the quality of recycled coarse aggregates by different ...

Sep 15, 2021  The adherence of mortar on the surface of RCA affects the mechanical and durability properties of the recycled aggregate concrete (RAC) (Abdulla 2014, Dhir and Paine 2007, Xu and Shi 2000, Ho et al. 2013, Otsuki et al. 2003, Katz 2004, Revathi et al. 2014, Saravanakumar and Dhinakaran 2014, Juan De and Gutiérrez 2009).Puthussery et al.

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Properties enhancement of recycled aggregate concrete

Abstract In this study, the intrinsic properties of recycled coarse aggregates (RC), associated with bonded mortar, were modified with two different pretreatment techniques viz-a-viz HCl pretreatment and Na2SO4 pretreatment, while maintaining a fixed aggregate-to-solution ratio of 1:4.5. The residual bonded mortar was quantified to evaluate the potential of both techniques.

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The physical properties of the recycled coarse aggregate. 1047

Download scientific diagram The physical properties of the recycled coarse aggregate. 1047 from publication: Study on pore characteristics of recycled aggregate concrete mixed with glazed hollow ...

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Effects of recycled aggregates on properties of plastic concrete

Jul 07, 2022  This study explored the effects of the recycled fine and coarse aggregates (RFA and RCA) on the properties of the plastic concrete with mixing proportions designed by densified mixture design algorithm (DMDA). The recycled aggregates partially replaced the natural aggregates by 10–50% volume and the fly ash was used to minimize the voids.

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Effect of Recycled Coarse Aggregate on Concrete Properties

The replacement of recycled aggregate on concrete will decrease the characteristic Strength. In the context of Batch 1, the characteristic Strength for 0% was 29.58 MPa, 35% Recycled Aggregate was 27.27 MPa, 50%. Recycled Aggregate was 25.27 MPa and 65% Recycled Aggregate was 23.08 MPa. Then, in terms of Batch 2, the characteristic Strength for ...

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Effect of Chemical Enhancing-Technology on the Properties of Recycled ...

Jul 31, 2020  Strengthening the attached old cement mortar of recycled aggregate (RA) is a common approach to enhance the RA properties. In this study, four representative chemical enhancing-technologies were chosen. Through the analysis of physical properties, mechanical properties, and shape indexes, the changes of performance before and after strengthening

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The investigation of concrete damage and recycled aggregate properties ...

Jul 01, 2022  The results indicated that physical performance of microwave treated aggregate was within the range of specification requirement and water absorption and crushing value of coarse aggregate heated ...

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Critical Review of Recycled Aggregate Concrete Properties, Improvements ...

Nov 11, 2020  In addition, some methods have been proposed to improve the properties of recycled aggregate concrete, with the use of geopolymer binders in place of portland cement showing the most potential. ... Mechanical and Freeze-Thaw Durability Properties of Recycled Aggregate Concrete Made with Recycled Coarse Aggregate. Journal of Materials in Civil ...

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