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Prospect of Recycled Coarse Aggregate for Concrete ...

This study focused on the prospect of recycled coarse aggregate for concrete production. The coarse aggregate component of normal concrete was replaced with 25%, 50%, 75% and 100% Recycled Coarse Aggregate (RCA) in a 1:2:4 cement, sand and aggregate mix proportion and 0.5 water/cement ratio.

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Experimental study of concrete using recycled coarse

H.E. Opara, et al. Experimental study of concrete using recycled coarse aggregate Page 3 river gravel from relatively far locations generally lead to increase in construction costs.

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Assessment of the ternary coarse aggregates for economic ...

Five different concrete mixes were prepared in this study; one natural aggregate concrete (NAC) and four concretes with 10%, 20%, 30% and 40% recycled aggregate and 40%, 30%, 20% and 10% palm kernel shell (PKS) contents in reverse order at constant 50% natural coarse aggregate (NCA).

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Article: Experimental study of concrete using recycled ...

2017-2-7  International Journal of Materials and Structural Integrity; 2016 Vol.10 No.4; Title: Experimental study of concrete using recycled coarse aggregate Authors: Hyginus E. Opara; Uchechi G. Eziefula; Chima C. Ugwuegbu. Addresses: Department of Civil Engineering, Imo State University, PMB 2000, Owerri, Imo State, Nigeria ' School of Engineering Technology, Imo State Polytechnic, Umuagwo, PMB 1472 ...

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Experimental study of concrete using recycled coarse

An experimental study of recycled aggregate concrete (RAC) using recycled coarse aggregate (RCA) is reported. The RCA was obtained from construction and demolition waste (CDW)

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Influence of Aggregates Treatment on Properties of ...

In this study replacement of Natural aggregate is restricted up to 30% of coarse recycled aggregate. Moreover, fine aggregates replaced in 50% and 100% to Fine recycle aggregates. There are three types of treatment under consideration for recycled aggregate (1) Abrasion of Recycled Aggregate (2) Cement slurry coating of Recycled Aggregate

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Recycling of polyethylene terephthalate (PET) plastic ...

2021-1-12  derivable from its application. Furthermore, the effects of recycling PET plastic bottle wastes produced in North Central Nigeria in bituminous asphaltic concrete (BAC) used in flexible pavement construction were also evaluated. The mix design consists of 60/70 penetration-grade asphaltic concrete (5%), 68% coarse aggregate, 6% fine

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Effect of Recycled Aggregate Characteristics on Drying ...

2020-3-1  Abstract: The research presented in this paper addresses the effect of coarse recycled concrete aggregate (RCA) on drying shrinkage of concrete designated for transportation infrastructure. Six types of RCA were employed at 30 to 100% replacement rates of virgin coarse aggregate. Two binder systems, including a binary cement with 25% Class C ...

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The use of recycled aggregate in concrete in Hong Kong ...

2007-5-1  Therefore, the recycled aggregate used in this territory could be considered as recycled concrete aggregate. In the current specifications, it is allowed to use 100% coarse recycled aggregate in proportioning low-grade concrete (grade 20). In high-grade concrete (i.e., grades 25–35), only 20% coarse recycled aggregate content is permitted.

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Military Institute of Science and Technology (MIST)

Worked on “Flexural Behavior of RC Beam Made with Recycled Coarse Aggregate, Crumb Rubber and Polypropylene Fiber” ... MIST Office ( GSO2 HQ ) +880 176 902 3806 [email protected] Admission Office +88-02-8035419, +88-02-9010049 Ext: 3842 +880 176 902 3842 ...

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Assessment of the ternary coarse aggregates for economic ...

Five different concrete mixes were prepared in this study; one natural aggregate concrete (NAC) and four concretes with 10%, 20%, 30% and 40% recycled aggregate and 40%, 30%, 20% and 10% palm kernel shell (PKS) contents in reverse order at constant 50% natural coarse aggregate (NCA).

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Influence of Aggregates Treatment on Properties of ...

In this study replacement of Natural aggregate is restricted up to 30% of coarse recycled aggregate. Moreover, fine aggregates replaced in 50% and 100% to Fine recycle aggregates. There are three types of treatment under consideration for recycled aggregate (1) Abrasion of Recycled Aggregate (2) Cement slurry coating of Recycled Aggregate

Get Price

Article: Experimental study of concrete using recycled ...

2017-2-7  International Journal of Materials and Structural Integrity; 2016 Vol.10 No.4; Title: Experimental study of concrete using recycled coarse aggregate Authors: Hyginus E. Opara; Uchechi G. Eziefula; Chima C. Ugwuegbu. Addresses: Department of Civil Engineering, Imo State University, PMB 2000, Owerri, Imo State, Nigeria ' School of Engineering Technology, Imo State Polytechnic, Umuagwo, PMB 1472 ...

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Recycling of polyethylene terephthalate (PET) plastic ...

2021-1-12  derivable from its application. Furthermore, the effects of recycling PET plastic bottle wastes produced in North Central Nigeria in bituminous asphaltic concrete (BAC) used in flexible pavement construction were also evaluated. The mix design consists of 60/70 penetration-grade asphaltic concrete (5%), 68% coarse aggregate, 6% fine

Get Price

Military Institute of Science and Technology (MIST)

Worked on “Flexural Behavior of RC Beam Made with Recycled Coarse Aggregate, Crumb Rubber and Polypropylene Fiber” ... MIST Office ( GSO2 HQ ) +880 176 902 3806 [email protected] Admission Office +88-02-8035419, +88-02-9010049 Ext: 3842 +880 176 902 3842 ...

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On the Structural Performance of Recycled Aggregate ...

2021-5-7  2.1.1. Geopolymer Recycled Aggregate Concrete In the preparation of GRAC, the 100% replacement of natural aggregates with recycled aggregates was done. To obtain the RCAs for the construction of compressive members, the tested cylinders with a compressive strength of

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The use of recycled aggregate in concrete in Hong Kong ...

2007-5-1  Therefore, the recycled aggregate used in this territory could be considered as recycled concrete aggregate. In the current specifications, it is allowed to use 100% coarse recycled aggregate in proportioning low-grade concrete (grade 20). In high-grade concrete (i.e., grades 25–35), only 20% coarse recycled aggregate content is permitted.

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Crushed Concrete Aggregates - Properties and Uses of ...

Shear strength of recycled aggregate concrete is lesser than of normal concrete. This is because the recycled aggregate from field-demolished concrete for example can be relatively weaker than a typical natural aggregate. In general, there is a 10% decrease in strength when recycled coarse aggregates are used. Uses of Crushed Concrete Aggregates

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METHOD OF TEST FOR PROPORTIONS OF COARSE

2019-11-20  The net weight will be the weight of coarse aggregate in the test sample while suspended in water. 5. Calculate the weight of the SSD aggregate in air by use of the following formula: (5) e = D G/(G-1) where: e = SSD weight in lb of the coarse aggregate in wet sieved sample D = submerged apparent weight in lb of coarse aggregate - 4 -

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International Journal of Sustainable Engineering: Vol 14,

2021-4-4  International Journal of Sustainable Engineering. Open access from volume 15 (2022). Publishes research on sustainable products, technologies and business models, including environmental management, resource efficiency and waste minimization. Submit an article.

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Recycling of polyethylene terephthalate (PET) plastic ...

2021-1-12  derivable from its application. Furthermore, the effects of recycling PET plastic bottle wastes produced in North Central Nigeria in bituminous asphaltic concrete (BAC) used in flexible pavement construction were also evaluated. The mix design consists of 60/70 penetration-grade asphaltic concrete (5%), 68% coarse aggregate, 6% fine

Get Price

The use of recycled aggregate in concrete in Hong Kong ...

2007-5-1  Therefore, the recycled aggregate used in this territory could be considered as recycled concrete aggregate. In the current specifications, it is allowed to use 100% coarse recycled aggregate in proportioning low-grade concrete (grade 20). In high-grade concrete (i.e., grades 25–35), only 20% coarse recycled aggregate content is permitted.

Get Price

Military Institute of Science and Technology (MIST)

Worked on “Flexural Behavior of RC Beam Made with Recycled Coarse Aggregate, Crumb Rubber and Polypropylene Fiber” ... MIST Office ( GSO2 HQ ) +880 176 902 3806 [email protected] Admission Office +88-02-8035419, +88-02-9010049 Ext: 3842 +880 176 902 3842 ...

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Structural Behaviour of Crushed Fine Ceramic Tiles as ...

2021-3-1  coarse aggregates and fine aggregate. The combination of waste crushed tiles were replaced coarse aggregates by 10%, 20%, 30% and 40% and Granite powder was replaced fine aggregate by 10%, 20%, 30% and 40% without changing the mix design. M25 grade of concrete was designed to prepare the conventional mix. Without changing the mix design

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Some mechanical properties of normal and recycled ...

2021-8-24  recycled coarse aggregates from a building with 30 years of age. He obtained 32.6-35.8 MPa compressive strength after 28 days with standard curing conditions. Butler et al. [4] focused on characterizing two recycled concrete aggregate sources in Ontario and produced a novel concrete containing recycled concrete aggregate as the coarse aggregate.

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About Us - Aggretek

150 Isidor Ct, Suite 103 Spartks, NV 89441 775-686-6900 [email protected]

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Crushed Concrete Aggregates - Properties and Uses of ...

Shear strength of recycled aggregate concrete is lesser than of normal concrete. This is because the recycled aggregate from field-demolished concrete for example can be relatively weaker than a typical natural aggregate. In general, there is a 10% decrease in strength when recycled coarse aggregates are used. Uses of Crushed Concrete Aggregates

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Effect of coconut shell as a Coarse Aggregates on

2021-1-2  replacement level of coarse aggregate. In this research the replacement percentage is up to 50% with the conventional coarse aggregate. The compressive strength of the CSC is 37.7N/mm2 by replacing 25% of coarse aggregate. Then the beam is casted and tested for the above compressive strength and the result obtained is 90KN.From this results,

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Geometrical Requirement of Aggregates as per European ...

The aggregates may be natural, manufactured, or recycled. Fig 1: Fine and Coarse Aggregate. In this article, we discuss the geometrical requirement of the aggregates such as size, grading, shape, shell content, fine content, and quality used in the production of concrete as per the European Standards (EN -

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International Journal of Sustainable Engineering: Vol 14, No 4

2021-4-4  International Journal of Sustainable Engineering. Open access from volume 15 (2022). Publishes research on sustainable products, technologies and business models, including environmental management, resource efficiency and waste minimization. Submit an article.

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