A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Research and Application of Recycled Aggregate Concrete
The properties of recycled aggregate concrete (RAC) incorporating mineral admixture including fly ash and slag were studied through laboratory tests and practical project. The test results indicated that by adding fly ash, the apparent density of RAC reduced significantly, and the workability of RAC improved observably. The ratio of tension strength to compression strength and the ratio of splitting tensile strength to compressive strength of RAC both increased, so the tensile capability were improved and the frangibility reduced, which were helpful to improve the crack resistance and volume stability of road RAC. The abrasion resisting property of RAC was improved. The project application of RAC showed that the compression strength of the concrete adding 80∼100% recycled concrete coarse aggregate could reach C35 (35MPa∼40MPa) and the flexural strength could be higher than 5.0 MPa at 28 d, both of which satisfied the requirement in the heavy and special heavy traffic road, and could open to traffic at 3 d. The overall performance of RAC pavement were excellent, and without dehiscence after working one year.
Research and Application of Recycled Aggregate Concrete
The properties of recycled aggregate concrete (RAC) incorporating mineral admixture including fly ash and slag were studied through laboratory tests and practical project. The test results indicated that by adding fly ash, the apparent density of RAC reduced significantly, and the workability of RAC improved observably. The ratio of tension strength to compression strength and the ratio of splitting tensile strength to compressive strength of RAC both increased, so the tensile capability were improved and the frangibility reduced, which were helpful to improve the crack resistance and volume stability of road RAC. The abrasion resisting property of RAC was improved. The project application of RAC showed that the compression strength of the concrete adding 80∼100% recycled concrete coarse aggregate could reach C35 (35MPa∼40MPa) and the flexural strength could be higher than 5.0 MPa at 28 d, both of which satisfied the requirement in the heavy and special heavy traffic road, and could open to traffic at 3 d. The overall performance of RAC pavement were excellent, and without dehiscence after working one year.
Research and Application of Recycled Aggregate Concrete
Yin, Jian (author) / Chi, Yi (author) / Gong, Shenghui (author) / Zou, Wei (author)
GeoShanghai International Conference 2010 ; 2010 ; Shanghai, China
Paving Materials and Pavement Analysis ; 162-168
2010-05-14
Conference paper
Electronic Resource
English
Research and Application of Recycled Aggregate Concrete
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British Library Online Contents | 2005
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