Influence of Superplasticiser on Properties of Recycled Aggregate Concrete
Abstract:
The effect of superplasticizer on various properties of concrete made with 100% recycled coarse aggregate (RCA) was studied in this paper. Two grades: normal strength concrete (M20) and medium strength concrete (M30) were designed with 100% recycled coarse aggregate with and without addition of superplasticizers. Controlled concrete mixes of same grades (M20 & M30) with and without addition of superplasticizers were also prepared with natural aggregate to evaluate the behaviour of recycled aggregate concrete in comparison to normal concrete. Workability, compressive, split tensile and flexural strengths; stress-strain characteristics, rebound number and ultrasonic pulse velocity tests were performed during the investigation. The test results reveal that with the addition of superplasticizer in RAC, it may be possible to achieve the normal and medium strength concrete (M20 and M30) as it was achieved the same with natural aggregate without addition of superplasticizer.
Keywords:
Language:
English
Published:
Asian journal of civil engineering, Volume:16 Issue: 7, Dec 2015
Pages:
1001 to 1023
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