Abstract
This paper is going to offer an interesting solution to enhance the compressive behavior of concrete in terms of strength and modulus of elasticity. In the presented method, by compressing the fresh concrete in a fabricated pressure apparatus, the excess water of concrete is expelled and the percent void is remarkably decreased. Applying this technique without needing the additive materials, external vibration and workability control, a significant enhancement in the strength and modulus of elasticity of the freshly compressed concrete (FCC) is observed. A parametric study is conducted to investigate the effect of various reference concrete (RC) strengths, different pressure levels and pressure duration on the behavior of FCC. Based on the regression analysis of the experimental data, this study provides empirical equations to predict the percentage increase in the compressive strength and modulus of elasticity of FCC specimens. A relationship between the modulus of elasticity and compressive strength for both the compressed and uncompressed concretes is statistically derived and then the results are compared with those calculated by the prediction models given in ACI 318, ACI 363 and EN 1992-1-1 codes. Finally, the code-compliant expressions for RC are modified for FCC.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
