SHRINKAGE OF CONCRETE WITH REPLACEMENT OF AGGREGATE WITH RECYCLED CONCRETE AGGREGATE
This paper gives results of an experimental analysis of samples of concrete where a portion of the natural aggregate was replaced with recycled aggregate originating from recycled concrete aggregate (RCA). Experimental analysis was performed to obtain shrinkage properties (basic and dried) of the concrete containing RCA (CRCA). The percentages of replacement of natural aggregate with RCA were 0, 15, 30, 60, and 100%, with test conditions of 50% RH and 20 deg C. Results of these trials are compared with reference concrete tests at an age of 270 days. These results demonstrate an increase in the shrinkage of the CRCA that is proportional to the amount of RCA used as a replacement for the natural aggregate. When compared to the reference concrete, the drying shrinkage evidences significant changes; however, the evolution over time is similar to that of standard concrete.
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Availability:
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Corporate Authors:
American Concrete Institute (ACI)
38800 Country Club Drive
Farmington Hills, MI United States 48331 -
Authors:
- Gomez-Soberon, JMV
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Conference:
- Innovations in Design with Emphasis on Seismic, Wind, and Environmental Loading; Quality Control and Innovations in Materials/Hot-Weather Concreting. Proceedings of the 5th ACI International Conference
- Location: Cancun, Mexico
- Date: 2002-12-9 to 2002-12-10
- Publication Date: 2002
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: p. 475-495
Subject/Index Terms
- TRT Terms: Aggregates by source; Cement mortars; Concrete aggregates; Concrete construction; Drying; Recycled materials; Shrinkage; Structural deterioration and defects
- Subject Areas: Highways; Materials; I32: Concrete;
Filing Info
- Accession Number: 00976528
- Record Type: Publication
- ISBN: 0870310895
- Report/Paper Numbers: SP-209-26
- Files: TRIS
- Created Date: Jul 22 2004 12:00AM