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Title: Structural and hydration properties of amorphous tricalcium silicate

Abstract

Mechanical milling was carried out to synthesize amorphous tricalcium silicate (Ca{sub 3}SiO{sub 5}) sample, where Ca{sub 3}SiO{sub 5} is the most principal component of Portland cement. The partial phase transformation from the crystalline to the amorphous state was observed by X-ray and neutron diffractions. Moreover, it was found that the structural distortion on the Ca-O correlation exists in the milled Ca{sub 3}SiO{sub 5}. The hydration of the milled Ca{sub 3}SiO{sub 5} with D{sub 2}O proceeds as follows: the formation of hydration products such as Ca(OD){sub 2} rapidly occurs in the early hydration stage, and then proceeds slowly after about 15 h. The induction time for the hydration of the milled Ca{sub 3}SiO{sub 5} is approximately one half shorter than that for the hydration of the unmilled one. This result means that the mechanical milling brings about the chemical activity of Ca{sub 3}SiO{sub 5} for hydration, and may be particularly useful for increasing the reactivity in the early hydration stage.

Authors:
 [1];  [1];  [1];  [2];  [1];  [3];  [3];  [4];  [1];  [1];  [5];  [4];  [4]
  1. Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, Osaka 590-0494 (Japan)
  2. Department of Materials Structure Science, Graduate University for Advanced Studies, Tsukuba, Ibaraki 305-0801 (Japan)
  3. Institute of Technology, Shimizu Corporation, 3-4-17, Etchujima, Koto-ku, Tokyo 135-8530 (Japan)
  4. Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801 (Japan)
  5. Department of Materials Science and Engineering, Muroran Institute for Technology, Muroran 050-8585 (Japan)
Publication Date:
OSTI Identifier:
20871547
Resource Type:
Journal Article
Journal Name:
Cement and Concrete Research
Additional Journal Information:
Journal Volume: 36; Journal Issue: 11; Other Information: DOI: 10.1016/j.cemconres.2006.05.004; PII: S0008-8846(06)00136-0; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0008-8846
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AMORPHOUS STATE; CALCIUM SILICATES; COMMINUTION; CRYSTAL STRUCTURE; HEAVY WATER; HYDRATION; NEUTRON DIFFRACTION; PHASE TRANSFORMATIONS; PORTLAND CEMENT; REACTIVITY; THERMODYNAMIC ACTIVITY; X-RAY DIFFRACTION

Citation Formats

Mori, K, Fukunaga, T, Shiraishi, Y, Iwase, K, Xu, Q, Oishi, K, Yatsuyanagi, K, Yonemura, M, Itoh, K, Sugiyama, M, Ishigaki, T, Kamiyama, T, and Kawai, M. Structural and hydration properties of amorphous tricalcium silicate. United States: N. p., 2006. Web. doi:10.1016/j.cemconres.2006.05.004.
Mori, K, Fukunaga, T, Shiraishi, Y, Iwase, K, Xu, Q, Oishi, K, Yatsuyanagi, K, Yonemura, M, Itoh, K, Sugiyama, M, Ishigaki, T, Kamiyama, T, & Kawai, M. Structural and hydration properties of amorphous tricalcium silicate. United States. https://doi.org/10.1016/j.cemconres.2006.05.004
Mori, K, Fukunaga, T, Shiraishi, Y, Iwase, K, Xu, Q, Oishi, K, Yatsuyanagi, K, Yonemura, M, Itoh, K, Sugiyama, M, Ishigaki, T, Kamiyama, T, and Kawai, M. 2006. "Structural and hydration properties of amorphous tricalcium silicate". United States. https://doi.org/10.1016/j.cemconres.2006.05.004.
@article{osti_20871547,
title = {Structural and hydration properties of amorphous tricalcium silicate},
author = {Mori, K and Fukunaga, T and Shiraishi, Y and Iwase, K and Xu, Q and Oishi, K and Yatsuyanagi, K and Yonemura, M and Itoh, K and Sugiyama, M and Ishigaki, T and Kamiyama, T and Kawai, M},
abstractNote = {Mechanical milling was carried out to synthesize amorphous tricalcium silicate (Ca{sub 3}SiO{sub 5}) sample, where Ca{sub 3}SiO{sub 5} is the most principal component of Portland cement. The partial phase transformation from the crystalline to the amorphous state was observed by X-ray and neutron diffractions. Moreover, it was found that the structural distortion on the Ca-O correlation exists in the milled Ca{sub 3}SiO{sub 5}. The hydration of the milled Ca{sub 3}SiO{sub 5} with D{sub 2}O proceeds as follows: the formation of hydration products such as Ca(OD){sub 2} rapidly occurs in the early hydration stage, and then proceeds slowly after about 15 h. The induction time for the hydration of the milled Ca{sub 3}SiO{sub 5} is approximately one half shorter than that for the hydration of the unmilled one. This result means that the mechanical milling brings about the chemical activity of Ca{sub 3}SiO{sub 5} for hydration, and may be particularly useful for increasing the reactivity in the early hydration stage.},
doi = {10.1016/j.cemconres.2006.05.004},
url = {https://www.osti.gov/biblio/20871547}, journal = {Cement and Concrete Research},
issn = {0008-8846},
number = 11,
volume = 36,
place = {United States},
year = {2006},
month = {11}
}