Coated Recycled Aggregate Concrete Exposed to Elevated Temperature

Coated Recycled Aggregate Concrete Exposed to Elevated Temperature

Dr. Arundeb Gupta

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Somnath Ghosh

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Saroj Mandal

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Jadavpur University

Coated Recycled Aggregate Concrete Exposed to Elevated Temperature

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Abstract

An experimental investigation has been conducted to study the mechanical as well as micro structural properties of Recycled aggregate concrete (RAC) with uncoated and Geopolymer / Cement coated recycled aggregate exposed to elevated temperature. Fly ash (as replacement of cement) was added while making concrete. Cubes test specimens were prepared and cured under water for 28 days. Test specimens were exposed to different levels of temperature (400oC, 600oC, 800oC) for a period of 6 hours in the muffle furnace. The reduction in compressive strength was observed are in the ranges from 23.4% to as high as 50.3% when exposed to different elevated temperature. MIP (Mercury intrusion porosimetry) test was conducted to estimate the pore diameter and also to appreciate the change of total pore volume due to change of exposure temperature. SEM (Scanning electron microscopy) study was also done to appreciate the micro-structural change in recycled aggregate concrete.

References

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Reference Format

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Dr. Arundeb Gupta. 2012. \u201cCoated Recycled Aggregate Concrete Exposed to Elevated Temperature\u201d. Global Journal of Research in Engineering - E: Civil & Structural GJRE-E Volume 12 (GJRE Volume 12 Issue E3): .

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GJRE Volume 12 Issue E3
Pg. 27- 32

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Keywords

Coated Recycled aggregate Compressive Strength Concrete Elevated temperature Fly ash Geopolymer Mercury intrusion porosimetry Natural aggregate

Submission ReceivedJune 13, 2012
Peer Review Double Blind
Handling Editor
Accepted July 4, 2012
Published July 15, 2012

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Issue date

August 28, 2012

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Article Matrices

Total Score: 108

Country: India

Subject: Global Journal of Research in Engineering - E: Civil & Structural

Authors: Dr. Arundeb Gupta, Somnath Ghosh, Saroj Mandal (PhD/Dr. count: 1)

View Count (all-time): 209

Total Views (Real + Logic): 5371

Total Downloads (simulated): 2620

Publish Date: 2012 08, Tue

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Total Views: 5371

Total Downloads: 2620

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