Temperature Dependence of Length Change of Cementitious Material Based on Quaternary System

Mori, Hirokatsu; Sasaki, Akira; Maruya, Eiji; Takahashi, T.

doi:10.14250/cement.67.165

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2016

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“…However, this system is very sensitive to temperature, mix proportions, and the quality of raw material. We previously reported that difference in compressive strength could not be due to the difference in porosity and gel space ratio; therefore, it was important to consider different kinds of hydrate and their volumes (Mori et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Examination of Strength Model for the Cementitious Material Containing Aluminous Cement

Mori

Itoh

Takahashi

et al. 2016

ACT

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This study examined the compressive strength model for cementitious material based on the Portland cement -aluminous cement-anhydrite system, which considers the physical properties of the hydrate and phase composition. The volume fraction of each hydrate and the hardness of the synthesized hydrate measured by nanoindentation were used to determine the calculation formula of σ 0 of the Ryshkewitch model. The formula for calculating the k value using the volume fraction of each hydrate was also suggested. In the range of this study, the difference in the compressive strength of this system could be arranged by the Ryshkewitch model using the σ 0 and the k values calculated by the suggested calculation formulas.

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Section: Introductionmentioning

confidence: 99%