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Title: Does the Al substitution in C-S-H(I) change its mechanical property?

Abstract

This study examines the influence of Al substitution for Si on the bulk modulus of calcium silicate hydrate I [C-S-H(I)], a structural analogue of C-S-H, by performing high-pressure synchrotron X-ray diffraction experiments in two C-S-H(I) samples: one a hydration product of alkali-activated slag and the other a synthetic C-S-H(I). The test result shows that not only the bulk modulus but also the incompressibility of the lattice parameters a, b, and c of two C-S-H(I) samples are very similar to each other, regardless of the Al substitution. This result may be due to the four-coordinated configuration of the substituted Al, which makes the dreierketten silicate chains maintain the same arrangement after the substitution.

Authors:
 [1];  [2]
  1. Department of Civil and Environmental Engineering, University of California, Berkeley, CA 94720 (United States)
  2. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California CA 20015 (United States)
Publication Date:
OSTI Identifier:
21490049
Resource Type:
Journal Article
Journal Name:
Cement and Concrete Research
Additional Journal Information:
Journal Volume: 41; Journal Issue: 1; Other Information: DOI: 10.1016/j.cemconres.2010.09.010; PII: S0008-8846(10)00214-0; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0008-8846
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CALCIUM SILICATES; CEMENTS; HYDRATES; HYDRATION; LATTICE PARAMETERS; MECHANICAL PROPERTIES; SLAGS; X-RAY DIFFRACTION; ALKALINE EARTH METAL COMPOUNDS; BUILDING MATERIALS; CALCIUM COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; MATERIALS; OXYGEN COMPOUNDS; SCATTERING; SILICATES; SILICON COMPOUNDS; SOLVATION

Citation Formats

Oh, Jae Eun, Clark, Simon M, Department of Earth and Planetary Sciences, University of California, Berkeley, CA 94720, and Monteiro, Paulo J.M., E-mail: monteiro@berkeley.ed. Does the Al substitution in C-S-H(I) change its mechanical property?. United States: N. p., 2011. Web. doi:10.1016/j.cemconres.2010.09.010.
Oh, Jae Eun, Clark, Simon M, Department of Earth and Planetary Sciences, University of California, Berkeley, CA 94720, & Monteiro, Paulo J.M., E-mail: monteiro@berkeley.ed. Does the Al substitution in C-S-H(I) change its mechanical property?. United States. https://doi.org/10.1016/j.cemconres.2010.09.010
Oh, Jae Eun, Clark, Simon M, Department of Earth and Planetary Sciences, University of California, Berkeley, CA 94720, and Monteiro, Paulo J.M., E-mail: monteiro@berkeley.ed. 2011. "Does the Al substitution in C-S-H(I) change its mechanical property?". United States. https://doi.org/10.1016/j.cemconres.2010.09.010.
@article{osti_21490049,
title = {Does the Al substitution in C-S-H(I) change its mechanical property?},
author = {Oh, Jae Eun and Clark, Simon M and Department of Earth and Planetary Sciences, University of California, Berkeley, CA 94720 and Monteiro, Paulo J.M., E-mail: monteiro@berkeley.ed},
abstractNote = {This study examines the influence of Al substitution for Si on the bulk modulus of calcium silicate hydrate I [C-S-H(I)], a structural analogue of C-S-H, by performing high-pressure synchrotron X-ray diffraction experiments in two C-S-H(I) samples: one a hydration product of alkali-activated slag and the other a synthetic C-S-H(I). The test result shows that not only the bulk modulus but also the incompressibility of the lattice parameters a, b, and c of two C-S-H(I) samples are very similar to each other, regardless of the Al substitution. This result may be due to the four-coordinated configuration of the substituted Al, which makes the dreierketten silicate chains maintain the same arrangement after the substitution.},
doi = {10.1016/j.cemconres.2010.09.010},
url = {https://www.osti.gov/biblio/21490049}, journal = {Cement and Concrete Research},
issn = {0008-8846},
number = 1,
volume = 41,
place = {United States},
year = {Sat Jan 15 00:00:00 EST 2011},
month = {Sat Jan 15 00:00:00 EST 2011}
}