Insights the hydration of portland cement under hydrothermal curing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F18%3APU129427" target="_blank" >RIV/00216305:26310/18:PU129427 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Insights the hydration of portland cement under hydrothermal curing

Original language description

Temperature curing significantly affects the hydration of Portland cement and its subsequent properties [1]. When a water stream saturation pressure is concomitantly applied (autoclaving), the mechanism of hydration reaction and the hydrated products are quite different from those obtained under influence of single parameter of temperature [2]. When subjected to hydrothermal conditions in oil and geothermal wells, cement slurry sets under influence of combined effect of temperature and vapor pressure. CEM I 42.5 R (denoted as CEM Extra by producer) has been submitted to the effect of different temperature - vapor pressures (100°C-0.1 MPa, 165°C -0.3 MP and 220°C-1.2 MPa) in a laboratory autoclave up to 7 days. X-Ray diffraction, Simultaneous thermogravimetric and differential thermal analysis measurements (TG/DTA) were mostly used to characterize the hydration products and their transformation under different hydrothermal curing conditions. Mechanical properties were correlated with pore structure and

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

<a href="/en/project/LO1211" target="_blank" >LO1211: Materials Research Centre at FCH BUT- Sustainability and Development</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů