Kinetic analysis of C-S-H growth on calcite

George W. Scherer; Frank Bellmann

doi:10.1016/j.cemconres.2016.07.017

Kinetic analysis of C-S-H growth on calcite

George W. Scherer, Frank Bellmann

Civil & Environmental Engineering

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Data for the rate of formation of calcium-silicate-hydrate on a calcite substrate are fitted to a model for growth of ellipsoidal particles. The time-dependent driving force for growth is calculated using a solid solution model for calcium-silicate-hydrate. The nucleation density and particle shape are estimated from SEM photos. Good agreement is found for the rate of growth and the fractional coverage of the substrate. The growth rate is found to have a cubic dependence on the supersaturation, and to be sensitive to the concentration of calcium hydroxide when that component is undersaturated.

Original language	English (US)
Pages (from-to)	226-235
Number of pages	10
Journal	Cement and Concrete Research
Volume	103
DOIs	https://doi.org/10.1016/j.cemconres.2016.07.017
State	Published - Jul 29 2018

All Science Journal Classification (ASJC) codes

Building and Construction
Materials Science(all)

Keywords

Calcium-silicate-hydrate
Growth rate
Kinetics

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10.1016/j.cemconres.2016.07.017

Cite this

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title = "Kinetic analysis of C-S-H growth on calcite",

abstract = "Data for the rate of formation of calcium-silicate-hydrate on a calcite substrate are fitted to a model for growth of ellipsoidal particles. The time-dependent driving force for growth is calculated using a solid solution model for calcium-silicate-hydrate. The nucleation density and particle shape are estimated from SEM photos. Good agreement is found for the rate of growth and the fractional coverage of the substrate. The growth rate is found to have a cubic dependence on the supersaturation, and to be sensitive to the concentration of calcium hydroxide when that component is undersaturated.",

keywords = "Calcium-silicate-hydrate, Growth rate, Kinetics",

author = "Scherer, {George W.} and Frank Bellmann",

note = "Funding Information: GWS was supported by Federal Highway Administration Grant DTFH61-12-H-00003 and ARRA Grant 611-473300-60026039 PROJ0002228 . The information in this paper does not necessarily reflect the opinion or policy of the federal government and no official endorsement should be inferred. We thank Dr. Jeffrey Bullard for helpful comments on the manuscript. Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

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doi = "10.1016/j.cemconres.2016.07.017",

language = "English (US)",

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pages = "226--235",

journal = "Cement and Concrete Research",

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T1 - Kinetic analysis of C-S-H growth on calcite

AU - Scherer, George W.

AU - Bellmann, Frank

N1 - Funding Information: GWS was supported by Federal Highway Administration Grant DTFH61-12-H-00003 and ARRA Grant 611-473300-60026039 PROJ0002228 . The information in this paper does not necessarily reflect the opinion or policy of the federal government and no official endorsement should be inferred. We thank Dr. Jeffrey Bullard for helpful comments on the manuscript. Publisher Copyright: © 2016 Elsevier Ltd

PY - 2018/7/29

Y1 - 2018/7/29

N2 - Data for the rate of formation of calcium-silicate-hydrate on a calcite substrate are fitted to a model for growth of ellipsoidal particles. The time-dependent driving force for growth is calculated using a solid solution model for calcium-silicate-hydrate. The nucleation density and particle shape are estimated from SEM photos. Good agreement is found for the rate of growth and the fractional coverage of the substrate. The growth rate is found to have a cubic dependence on the supersaturation, and to be sensitive to the concentration of calcium hydroxide when that component is undersaturated.

AB - Data for the rate of formation of calcium-silicate-hydrate on a calcite substrate are fitted to a model for growth of ellipsoidal particles. The time-dependent driving force for growth is calculated using a solid solution model for calcium-silicate-hydrate. The nucleation density and particle shape are estimated from SEM photos. Good agreement is found for the rate of growth and the fractional coverage of the substrate. The growth rate is found to have a cubic dependence on the supersaturation, and to be sensitive to the concentration of calcium hydroxide when that component is undersaturated.

KW - Calcium-silicate-hydrate

KW - Growth rate

KW - Kinetics

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DO - 10.1016/j.cemconres.2016.07.017

M3 - Article

AN - SCOPUS:85009454801

SN - 0008-8846

VL - 103

SP - 226

EP - 235

JO - Cement and Concrete Research

JF - Cement and Concrete Research

ER -

Kinetic analysis of C-S-H growth on calcite

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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