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A platform for research: civil engineering, architecture and urbanism
Prediction of early-age compressive strength of epoxy resin concrete using the maturity method
https://orcid.org/0000-0002-3603-8305
HighlightsHighlightsThis study was used bisphenol F-type epoxy resin concrete.The compressive strength of polymer concrete was predicted using the maturity method.Curing temperature had a greater effect on the maturity index than curing age.The constant n associated with hardeners were investigated to use Ohama’s equation.An appropriate model was presented to predict early-age compressive strength up to 72h.
AbstractThis study is investigated with the prediction of the compressive strength of early-age bisphenol F-type epoxy resin concrete when using the maturity method. When testing the compressive strength of epoxy resin concrete, the strength development started from an age of 20h at a curing temperature of 0°C, and the difference between the compressive strengths at the ages of 6h and 168h was markedly reduced at a higher curing temperature. Thus, it appeared that the bisphenol F-type epoxy resin concrete was heavily affected by curing temperature. In addition, there were significant differences in strength development based on the hardener type. When calculating the maturity index, it was appropriate to use data up to the age of 72h, and it appeared that the appropriate value of the constant n is 0.4 in the equation proposed by Ohama, et al. The maturity index was more heavily affected by curing temperature than curing age, and there was a significant difference depending on the hardener type. This study reviewed three prediction models, and when using the dose-response curve model, the coefficient of determination (R2) was the largest, so this is the model that should be used. Although it is possible to apply this model differently based on the hardener type, it was determined that there would be no problem even if a prediction model combining all the test data on the three hardeners was used. In conclusion, when using the prediction model deduced in the study, it was possible to easily predict the early-age compressive strength of bisphenol F-type epoxy resin concrete, and to prove that the maturity method is a non-destructive test useful for cast-in-place applications.
Prediction of early-age compressive strength of epoxy resin concrete using the maturity method
https://orcid.org/0000-0002-3603-8305
HighlightsHighlightsThis study was used bisphenol F-type epoxy resin concrete.The compressive strength of polymer concrete was predicted using the maturity method.Curing temperature had a greater effect on the maturity index than curing age.The constant n associated with hardeners were investigated to use Ohama’s equation.An appropriate model was presented to predict early-age compressive strength up to 72h.
AbstractThis study is investigated with the prediction of the compressive strength of early-age bisphenol F-type epoxy resin concrete when using the maturity method. When testing the compressive strength of epoxy resin concrete, the strength development started from an age of 20h at a curing temperature of 0°C, and the difference between the compressive strengths at the ages of 6h and 168h was markedly reduced at a higher curing temperature. Thus, it appeared that the bisphenol F-type epoxy resin concrete was heavily affected by curing temperature. In addition, there were significant differences in strength development based on the hardener type. When calculating the maturity index, it was appropriate to use data up to the age of 72h, and it appeared that the appropriate value of the constant n is 0.4 in the equation proposed by Ohama, et al. The maturity index was more heavily affected by curing temperature than curing age, and there was a significant difference depending on the hardener type. This study reviewed three prediction models, and when using the dose-response curve model, the coefficient of determination (R2) was the largest, so this is the model that should be used. Although it is possible to apply this model differently based on the hardener type, it was determined that there would be no problem even if a prediction model combining all the test data on the three hardeners was used. In conclusion, when using the prediction model deduced in the study, it was possible to easily predict the early-age compressive strength of bisphenol F-type epoxy resin concrete, and to prove that the maturity method is a non-destructive test useful for cast-in-place applications.
Prediction of early-age compressive strength of epoxy resin concrete using the maturity method
https://orcid.org/0000-0002-3603-8305
HighlightsHighlightsThis study was used bisphenol F-type epoxy resin concrete.The compressive strength of polymer concrete was predicted using the maturity method.Curing temperature had a greater effect on the maturity index than curing age.The constant n associated with hardeners were investigated to use Ohama’s equation.An appropriate model was presented to predict early-age compressive strength up to 72h.
AbstractThis study is investigated with the prediction of the compressive strength of early-age bisphenol F-type epoxy resin concrete when using the maturity method. When testing the compressive strength of epoxy resin concrete, the strength development started from an age of 20h at a curing temperature of 0°C, and the difference between the compressive strengths at the ages of 6h and 168h was markedly reduced at a higher curing temperature. Thus, it appeared that the bisphenol F-type epoxy resin concrete was heavily affected by curing temperature. In addition, there were significant differences in strength development based on the hardener type. When calculating the maturity index, it was appropriate to use data up to the age of 72h, and it appeared that the appropriate value of the constant n is 0.4 in the equation proposed by Ohama, et al. The maturity index was more heavily affected by curing temperature than curing age, and there was a significant difference depending on the hardener type. This study reviewed three prediction models, and when using the dose-response curve model, the coefficient of determination (R2) was the largest, so this is the model that should be used. Although it is possible to apply this model differently based on the hardener type, it was determined that there would be no problem even if a prediction model combining all the test data on the three hardeners was used. In conclusion, when using the prediction model deduced in the study, it was possible to easily predict the early-age compressive strength of bisphenol F-type epoxy resin concrete, and to prove that the maturity method is a non-destructive test useful for cast-in-place applications.
Prediction of early-age compressive strength of epoxy resin concrete using the maturity method
Jin, Nan Ji (author) / Seung, Inbae (author) / Choi, Yoon Sang (author) / Yeon, Jaeheum (author)
Construction and Building Materials ; 152 ; 990-998
2017-07-04
9 pages
Article (Journal)
Electronic Resource
English
Prediction of early-age compressive strength of epoxy resin concrete using the maturity method
| British Library Online Contents | 2017
Prediction of early-age compressive strength of epoxy resin concrete using the maturity method
| Online Contents | 2017
Prediction of early-age compressive strength of epoxy resin concrete using the maturity method
| British Library Online Contents | 2017
Prediction of early-age compressive strength of epoxy resin concrete using the maturity method
| British Library Online Contents | 2017
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