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Title: Simultaneous study of mechanical property development and early hydration chemistry in Portland cement slurries using X-ray diffraction and ultrasound reflection

Abstract

A sample cell for the simultaneous measurement of synchrotron X-ray powder diffraction and ultrasound shear-wave reflection data from cement slurries is described. White cement slurries at 25 and 50 C with 0-3% bwoc CaCl{sub 2} were studied to illustrate the potential of the apparatus. The decrease in reflected S-wave amplitude, in dB, showed a linear correlation with C{sub 3}S hydration. CaCl{sub 2} retarded the development of G{prime} and G{double_prime} relative to the extent of C{sub 3}S hydration. At short times, there was a correlation between the time evolution of both G{prime} and G{double_prime}, and the amount of precipitated CH seen by diffraction, which was almost independent of CaCl{sub 2} concentration and temperature. CaCl{sub 2} addition resulted in a decrease in the amount of CH visible to X-rays, relative the degree of C{sub 3}S hydration. This may indicate a change in C-S-H gel C:S ratio or the presence of nanoscale CH that could not be seen by diffraction.

Authors:
; ;  [1];  [2]
  1. (Halliburton)
  2. (
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
INDUSTRY
OSTI Identifier:
1045030
Resource Type:
Journal Article
Journal Name:
Cement Concrete Res.
Additional Journal Information:
Journal Volume: 42; Journal Issue: (8) ; 08, 2012; Journal ID: ISSN 0008-8846
Country of Publication:
United States
Language:
ENGLISH
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; CEMENTS; CHEMISTRY; DIFFRACTION; HYDRATION; MECHANICAL PROPERTIES; PORTLAND CEMENT; REFLECTION; SLURRIES; SYNCHROTRONS; X-RAY DIFFRACTION

Citation Formats

Jupe, Andrew C., Wilkinson, Angus P., Funkhouser, Gary P., and GIT). Simultaneous study of mechanical property development and early hydration chemistry in Portland cement slurries using X-ray diffraction and ultrasound reflection. United States: N. p., 2012. Web. doi:10.1016/j.cemconres.2012.05.013.
Jupe, Andrew C., Wilkinson, Angus P., Funkhouser, Gary P., & GIT). Simultaneous study of mechanical property development and early hydration chemistry in Portland cement slurries using X-ray diffraction and ultrasound reflection. United States. doi:10.1016/j.cemconres.2012.05.013.
Jupe, Andrew C., Wilkinson, Angus P., Funkhouser, Gary P., and GIT). Thu . "Simultaneous study of mechanical property development and early hydration chemistry in Portland cement slurries using X-ray diffraction and ultrasound reflection". United States. doi:10.1016/j.cemconres.2012.05.013.
@article{osti_1045030,
title = {Simultaneous study of mechanical property development and early hydration chemistry in Portland cement slurries using X-ray diffraction and ultrasound reflection},
author = {Jupe, Andrew C. and Wilkinson, Angus P. and Funkhouser, Gary P. and GIT)},
abstractNote = {A sample cell for the simultaneous measurement of synchrotron X-ray powder diffraction and ultrasound shear-wave reflection data from cement slurries is described. White cement slurries at 25 and 50 C with 0-3% bwoc CaCl{sub 2} were studied to illustrate the potential of the apparatus. The decrease in reflected S-wave amplitude, in dB, showed a linear correlation with C{sub 3}S hydration. CaCl{sub 2} retarded the development of G{prime} and G{double_prime} relative to the extent of C{sub 3}S hydration. At short times, there was a correlation between the time evolution of both G{prime} and G{double_prime}, and the amount of precipitated CH seen by diffraction, which was almost independent of CaCl{sub 2} concentration and temperature. CaCl{sub 2} addition resulted in a decrease in the amount of CH visible to X-rays, relative the degree of C{sub 3}S hydration. This may indicate a change in C-S-H gel C:S ratio or the presence of nanoscale CH that could not be seen by diffraction.},
doi = {10.1016/j.cemconres.2012.05.013},
journal = {Cement Concrete Res.},
issn = {0008-8846},
number = (8) ; 08, 2012,
volume = 42,
place = {United States},
year = {2012},
month = {10}
}