Development and Applications of the Intrinsic Model for Formwork Pressure of Self-Consolidating Concrete
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- Development and Applications of the Intrinsic Model for Formwork Pressure of Self-Consolidating Concrete
- Kwon, Seung Hee; Kim, Jae Hong; Shah, Surendra P.
- Issue Date
- INTERNATIONAL JOURNAL OF CONCRETE STRUCTURES AND MATERIALS, v.6, no.1, pp.31 - 40
- Self-consolidating concrete (SCC) is a recently developed innovative construction material. SCC fills in a formwork without any vibrating consolidation, which allows us to eventually achieve robust casting. However, high formwork lateral pressure exerted by SCC is a critical issue regarding its application as cast-in-place concrete. In order to control the risk caused by high formwork pressure, a comprehensive prediction model for the pressure was previously proposed, investigated, and validated with various SCC mixtures. The model was originally designed to simulate the intrinsic pressure response of SCC mixtures while excluding other extrinsic influencing factors such as friction and flexibility of the formwork. The model was then extended to consider extrinsic factors such as friction between SCC mixtures and formwork. In addition, other interesting topics for peak formwork pressure and mineral admixture effects were summarized in the paper.
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