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Mechanical Properties and Predictions of Strength of Concrete Containing Recycled Coarse Aggregates
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 Title & Authors
Mechanical Properties and Predictions of Strength of Concrete Containing Recycled Coarse Aggregates
Yang, In-Hwan; Kim, Kyoung-Chul;
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 Abstract
According to KS and Standard Specifications for Concrete, the compressive strength of concrete containing recycled aggregate is limited to 27 MPa and thereafter there are little research on concrete containing recycled aggregate of its compressive strength of greater than 27 MPa. Therefore, to expand the applicability of concrete recycled coarse aggregate(RCA), this paper concerns the mechanical properties of concrete containing RCA with compressive strength ranging from 30 to 60 MPa. The experimental parameters were water-cement ratio and replacement ratio of RCA. Water-cement ratio(w/c) was 0.36, 0.46 and 0.53, and replacement ratio of RCA was 30, 50, 70 and 100%. The experimental results were discussed about compressive strength, elastic modulus, split tensile strength and modulus of rupture. Test results of elastic modulus were compared to the design code predictions. Experimental elastic modulus for concrete with w/c
 Keywords
Recycled coarse aggregate;Water-cement ratio;Replacement ratio;Mechanical properties;Modulus of rupture;
 Language
Korean
 Cited by
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