Features regulation of properties for alkaline blastfurnace slag cement
K. K. Pushkarovaa, O. A. Gonchara, O. P. Bondarenkob
a V. D. Glukhovskу Scientific Research Institute Binders Materials
b Kiеv National University Civil Engineering Architecture
Annotation: Today big amount blastfurnace slag cement exists on civil market, which does not attract a following because of his low civil-technological characteristic: he slow hardening than Рortland cement, and differs the small setting time at initial period of the hardening and particularly - under negative temperature. That is why actual gets old the question about needing of the improvement his characteristic to account of the introduction complex organo-mineral additives that contains as accelerator of alkaline component. It's considered the opportunity of expansion for setting time and improvements of physico-mechanical properties of blastfurnace slag cement modification by of alkaline complex additives. The results of the study showed a possibility to use a complex organo-mineral additive, which provides the activation of the aluminosilicate component and full binding of the alkalis into insoluble compounds. This was found to allow not only to avoid the inner corrosion of the cement stone as resulting from the presence of free alkali in its composition, but also to provide the required technological and physico-mechanical properties of the modified alkaline blast furnace slag cement concretes. The results of the study will allow getting concretes with the use of the developed modified alkaline blastfurnace slag cements. The results of researches allow to do the optimistic forecast on cause of the possibility of the reception alkaline blastfurnace slag cement with regulated period for setting time and perfected physico-mechanical feature, which will currently use at production of artificial stone for special purpose with forward given technological and service characteristics.
Keywords: portland clinker, durability
Pages: 95-102.
Link for citation: Pushkarova, K. K.; Gonchar, O. A.; Bondarenko, O. P. Features regulation of properties for alkaline blastfurnace slag cement. – Text : electronic. – In: Modern Industrial and Civil Construction. – 2007. – Vol. 3, N 2. – Р. 95-102. – URL: https://donnasa.ru/publish_house/journals/spgs/2007-2/04_puschkareva_gonchar_bondarenko.pdf (date of access: 19.09.2024). (in Russian)
Vol. 3, N 2 (2007)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture