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http://dx.doi.org/10.14190/JRCR.2020.8.4.379

Effect of Bottom Ash Aggregate Contents on Mechanical Properties of Concrete  

Ahn, Tae-Ho (Department of Architectural Engineering, Graduate School, Kyonggi University)
Yang, Keun-Hyeok (Department of Architectural Engineering, Kyonggi University)
Ha, Jung-Soo (Department of Architectural Engineering, Dankook University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.8, no.4, 2020 , pp. 379-386 More about this Journal
Abstract
The present study examined the effect of bottom ash aggregate contents on the compressive strength gain and mechanical properties(modulus of elasticity and rupture and splitting tensile strength) of concrete. Main test parameters were water-to-cement ratio and bottom ash aggregate contents for replacement of natural sand. Test results showed that the 28-days compressive strength of concrete and mechanical properties normalized by the compressive strength tended to decrease with the increase in bottom ash fine aggregate content. When compared with fib 2010 model equations, bottom ash aggregate concrete exhibited the following performances: lower rates of compressive strength gain at early ages but greater rates at long-term ages; slightly higher measurements for modulus of elasticity and rupture; and lower measurements for splitting tensile strength.
Keywords
Bottom ash aggregates; Mechanical properties; Natural sand; fib 2010;
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