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2011 | 9 | 2 | 553-557
Tytuł artykułu

A remark on nano-particle stability of cement C-S-H gel

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Hydrated pastes of ordinary Portland cement prepared with different water-to-cement ratios were investigated by using the small-angle neutron scattering technique in the region of Q ∈ (0.0045, 0.11) Å−1. Samples of cement pastes were subjected to non-standard hydration conditions using a mix with D2O, low RH, and water-to-cement ratios spread over a very wide interval (0.4; 1.4). The investigation was focused on testing the structural stability of nano-metric particles in the cement C-S-H gel. Owing to the high structural stability of these nano-particles, their average diameter might be used as a microscopic parameter characterizing the nano-metric structure of C-S-H gels. The average diameter of the nano-particles of the studied ordinary Portland cement CEMI 42.5 R-SC was found to be close to the value of 4.2 nm and independent of the water-to-cement ratios.
Wydawca

Czasopismo
Rocznik
Tom
9
Numer
2
Strony
553-557
Opis fizyczny
Daty
wydano
2011-04-01
online
2011-02-20
Twórcy
  • Faculty of Civil Engineering, Physics Department, Brno University of Technology, Veveří 95, 602 00, Brno, Č.R., ficker.t@fce.vutbr.cz
autor
  • Budapest Neutron Centre, Konkoly Thege 29-33, H-1525, Budapest, Hungary
  • Faculty of Mechanical Engineering, Mathematics Department, Brno University of Technology, Technická 2, 616 62, Brno, Č.R.
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-010-0028-6
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