Computers and Concrete

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Influence of ground pumice powder on the bond behavior of reinforcement and mechanical properties of self-compacting mortars

  • Benli, Ahmet (Department of Civil Engineering, Bingol University) ;
  • Karatas, Mehmet (Department of Civil Engineering, Firat University) ;
  • Sastim, M. Veysel (Department of Civil Engineering, Firat University)
  • Received : 2017.02.22
  • Accepted : 2017.04.24
  • Published : 2017.09.25
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Abstract

The aim of this study is to investigate the effect of the bond strength of self-compacting mortars (SCMS) produced from ground pumice powder (GPP) as a mineral additive. In this scope, six series of mortars including control mix were prepared that consist of 7%, 12%, 17%, 22% and 27% of ground pumice powder by weight of cement. A total of 54 specimens of $40{\times}40{\times}160mm$ were produced and cured at the age of 3, 28 and 90-day for compressive and tensile strength tests and 18 specimens of $150{\times}150{\times}150mm$ mortar were prepared and cured at 28 days for bond strength tests. Flexural tensile strength and compressive strength of $40{\times}40{\times}160mm$ specimens were measured at the curing age of 7, 28 and 90-day. Mini V-funnel flow time and mini slump flow diameter tests were also conducted to obtain rheological properties. As a result of the study, it was observed that the SCMs containing 12% of GPP has the highest bond strength as compared to control and GPP mortars. Compressive strength slightly increased up to 12% of GPP.

Keywords

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