Project detail

Physical methods for monitoring and interpretation of hydration processes of cement in concrete

Duration: 01.01.1999 — 31.12.2001

Funding resources

Czech Science Foundation - Standardní projekty

- whole funder

On the project

Description in English
Standard methods for measuring the content of liquid moisture will be analyzed from the point of view of applicability in monitoring the hydration processes in cement paste. A new measuring device for monitoring hydration of cement in concrete based on the microwave absorption will be developed. The proposed microwave method will be verified by investigating the hydration processes in concrete with Portland cement. The measured results of microwave absorption in the setting concrete will be interpreteusing the correlation with the changes in mechanical properties and in the porous system, and with the generation of hydration heat. An empirical relation for calculating the relative permittivity of moist mixtures from the permittivities of its componentswill be formulated and compared with the known mixing rules. The methodology for monitoring the state of hydration of cement in concrete in laboratory conditions and in building sites based on the microwave technique of moisture measurement wi

Mark

GA103/99/0024

Default language

Czech

People responsible

Rovnaníková Pavla, prof. RNDr., CSc. - principal person responsible

Units

Faculty of Civil Engineering
- beneficiary (1980-01-01 - not assigned)

Results

ROVNANÍKOVÁ, P. Problematika stanovení pH betonu. In Sanace betonových konstrukcí. Brno: SSBK Brno, 2001. s. 271 ( s.)ISBN: 1211-3700.
Detail

ROVNANÍKOVÁ, P. Determination of moisture content in hydrating cement paste. In Heat and Moisture Transport in Building. New Zealand: 2001.
Detail

ROVNANÍKOVÁ, P. Vliv zinku a oxidu zinečnatého na hydrataci portlandského cementu. In Žárové zinkování. Praha: Asociace českých zinkoven, 2001. s. 73 ( s.)
Detail

ROVNANÍKOVÁ, P., KOKTAVÝ, P. Kritika adiabatického způsobu stanovení hydratačního tepla cementu. In Mezinárodní slovenský a český kalorimetrický seminář 2001. Ostrava: Ostravská univerzita, Přírodovědecká fakulta, 2001. s. 39 ( s.)ISBN: 80-7042-803-1.
Detail

VRAŽIČOVÁ, J. Vlastnosti pojiv na bázi fosforečnanu hořečnato- amonného. In Zborník prednášok. 10. sekcia: Stavebné materiály. Košice: 2002. s. 233 ( s.)ISBN: 80-7099-816-4.
Detail

ROVNANÍKOVÁ, P. Monitorování obsahu volné vody v raném stadiu hydratace cementové pasty pomocí mikrovlnné impulsní metody. Stavební obzor, 2002, roč. 11, č. 1, s. 11 ( s.)ISSN: 1210-4027.
Detail

PAVLÍK, J.; TYDLITÁT, V.; ČERNÝ, R.; KLEČKA, T.; BOUŠKA, P.; ROVNANÍKOVÁ, P. Application of a microwave impulse technique to the measutement of free water content in early hydration stages of cement paste. Cement and Concrete Research, 2003, vol. 33, no. 1, p. 93 ( p.)ISSN: 0008-8846.
Detail

Mezinárodní slovenský a český kalorimetrický semiář. Račkova dolina (28.05.2001)
Detail

Responsibility: Rovnaníková Pavla, prof. RNDr., CSc.