T
Thomas Matschei
Researcher at RWTH Aachen University
Publications - 43
Citations - 4412
Thomas Matschei is an academic researcher from RWTH Aachen University. The author has contributed to research in topics: Ettringite & Cement. The author has an hindex of 17, co-authored 32 publications receiving 3131 citations. Previous affiliations of Thomas Matschei include Dresden University of Technology & Swiss Federal Laboratories for Materials Science and Technology.
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Thermodynamic Modelling of the Effect of Temperature on the Hydration and Porosity of Portland Cement
TL;DR: In this article, the phase assemblage and pore solution of Portland cements hydrated between 0-60°C were modeled as a function of time and temperature, and a good correlation between calculated porosity and measured compressive strength was observed.
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The Role of Calcium Carbonate in Cement Hydration
TL;DR: In this paper, it is shown by experiment and calculation that much, if not all, of this calcite is reactive and affects the distribution of lime, alumina and sulfate and thereby alters the mineralogy of hydrated cement pastes.
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The AFm phase in Portland cement
TL;DR: In this article, a scheme of phase balances was proposed to calculate the mineralogical balances of a hydrated cement paste with greater accuracy than hitherto practicable, and experimentally-determined phase relationships were depicted at 25 deg. C.
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Cemdata18: A chemical thermodynamic database for hydrated Portland cements and alkali-activated materials
Barbara Lothenbach,Dmitrii A. Kulik,Thomas Matschei,Magdalena Balonis,Luis G. Baquerizo,Belay Zeleke Dilnesa,George D. Miron,Rupert J. Myers +7 more
TL;DR: The Cemdata18 database as mentioned in this paper contains thermodynamic data for common cement hydrates such as C-S-H, AFm and AFt phases, hydrogarnet, hydrotalcite, zeolites, and M-S -H that are valid over temperatures ranging from 0 to at least 100°C.
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Thermodynamic properties of Portland cement hydrates in the system CaO–Al2O3–SiO2–CaSO4–CaCO3–H2O
TL;DR: In this article, a database of commonly-encountered cement substances including C-S-H, Ca(OH)2, selected AFm, AFt and hydrogarnet compositions as well as solid solutions is presented.