Temat: MIP - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Comparison of pore characteristics and water absorption in ceramic materials with frost resistance tactor, Fc
Porównanie wskaźnika mrozoodporności ceramiki Fc z charakterystyką porów i nasiąkliwości
Autorzy:: Bracka, A.
Rusin, Z.
Powiązania:: https://bibliotekanauki.pl/articles/402140.pdf
Data publikacji:: 2012
Wydawca:: Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
Tematy:: ceramics
porosity
water absorption
frost resistance
MIP
ceramika
porowatość
nasiąkliwość
mrozoodporność
Opis:: The paper presents the results of ceramic products testing for water absorption, water absorption under vacuum, specific density, and pore size and volume distributions by mercury intrusion porosimetry. The test results were compared against the F_c frost resistance number. It was found that there is no simple correlation between selected physical properties and F_c factor.
Źródło:: Structure and Environment; 2012, 4, 3; 15-19
2081-1500
Pojawia się w:: Structure and Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Open porosity of cement pastes and their gas permeability
Autorzy:: Tracz, T.
Powiązania:: https://bibliotekanauki.pl/articles/200219.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: cement paste
water-cement ratio
open porosity
helium porosity
MIP
porosity
gas permeability
zaczyn cementowy
wskaźnik wodno-cementowy
porowatość otwarta
porowatość
przepuszczalność gazowa
Opis:: This paper presents the results of extensive research work on the open porosity and gas permeability of cement pastes. Tests were conducted on cement pastes with different water/cement ratios and types of cement. The three most popular cements in Poland from the CEM I, CEM II and CEM III groups were tested after the pastes had been cured for 90 days in laboratory conditions. The scope of experiments included the assessment of open porosity determined using three different methods: comparing the bulk and specific densities, mercury intrusion porosimetry and saturating the material with water. In addition, this article contains an analysis of the porosity characteristics based on the distributions produced by porosimetry examinations. Gas permeability was determined using the modified RILEM-Cembureau laboratory method. The results of the completed test allowed a quantitative determination to be made of the impact of water-cement ratio and type of cement used on open porosity assessed by various methods, and the influence of these parameters on the gas permeability of the paste. The quantitative changes in the content of capillary pores and meso-pores in the cement pastes analysed are also presented.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2016, 64, 4; 775-783
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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