A Complex Additive for Autoclaved Concrete

Number of journal: №5-2017
Autors:

Kuznetsova G.N.
Morozova N.N.
Potapova L.I.
Klokov V.V.

DOI: https://doi.org/10.31659/0585-430X-2017-748-5-36-39

AbstractAbout AuthorsReferences
In the technology of the autoclaved gas concrete, important characteristics are mix fluidity, hydration kinetics of lime-cement binder, swelling process, curing time of mass concrete, and autoclaved strength. Results of the study of the effect of complex additives on the basis of hydro-silicates from waste of silicate brick production, superplasticizers, sulfates of natu- ral origin (gypsum stone) , and soda-sulfate mixture both for each component independently and in complex on the lime, cement, cellular-concrete mix, and autoclaved concrete are presented. An additive S-3 and gypsum stone among sulfates possess the greatest retardation coefficient of lime hydration. Hydro-silicates don’t change the time of cement setting sep- arately. Complexes containing 5% of hydro-silicates with plasticizer and hydro-silicates, sulfates and plasticizer retard the end of setting, and in an amount of 10% retard also the time of setting beginning. The efficiency of the complex with sulfates of natural origin and soda-sulfate mixture in an amount of 5% is established according to the temperature, fluidity of the cellular-concrete mixture and autoclaved strength of the gas concrete D600. The increase in strength by up to 23% has been obtained.
G.N. KUZNETSOVA, Engineer(This email address is being protected from spambots. You need JavaScript enabled to view it.);
N.N. MOROZOVA, Candidate of Sciences (Engineering),
L.I. POTAPOVA, Candidate of Sciences (Chemistry),
V.V. KLOKOV, Student

Kazan State University of Architecture and Engineering (1, Zelenaa Street, Kazan, 420043, Russian Federation)

1. Morozov N.M., Muginov Kh.G., Krasinikova N.M., Gayfullin N.E. Fine concretes with the complex strengthening additives. Technical science: theory and practice. Materials of the International scientific conference. Chita: Molodoy uchenyi. 2012, pp. 108–1112. (In Russian). 
2. Kuznetsova G.V., Morozova N.N., Klokov V.V., Zigangaraeva S.R. Silicate Brick and Autoclaved Gas Concrete with the Use of Waste of Own Production. Stroitel’nye Materialy [Construction Materials]. 2016. No. 4, pp. 76–80. (In Russian). 
3. Kuznetsova G.V., Morozova N.N., Khozin V.G. Facing Layer and Hydrophobizator in Manufacture of Aerated Concrete. Stroitel’nye Materialy [Construction Materials]. 2015. No. 8, pp. 8–10. (In Russian). 
4. Didevich A.V. Autoclave aerocrete: and all this about it. Tekhnologiya betonov. 2014. No. 3, pp. 48–51. (In Russian). 
5. Nelyubova V.V., Strokova V.V., Altynnik N.I. Cellular Autoclaved Composites with Application of Mamostructured Modifier. Stroitel’nye Materialy [Construction Materials]. 2014. No. 5, pp. 44–47. (In Russian). 
6. Kashapov R.R., Krasinikova N.M., Khozin V.G., Galeev A.F., Shamsin D.R. Complex additive on the basis of sodosulfatny mix. Izvestiya KGASU. 2015. No. 2. pp. 239–243. (In Russian). 
7. Bedarev A.A. Influence of plasticizing additives on temperature and viscoplastic properties of silicate mix for production of gas-silicate. Izvestiya KGASU. 2013. No. 2, pp. 208. (In Russian). 
8. Morozova N.N., Kuznetsova G.V., Golosov A.K. Influence of Cements from Different Producers on Properties of Cellular-Concrete Mix of Autoclaved Gas Concrete. Stroitel’nye Materialy [Construction Materials]. 2014. No. 5, pp. 49–51. (In Russian).

For citation: Kuznetsova G.N., Morozova N.N., Potapova L.I., Klokov V.V. A Complex Additive for Autoclaved Concrete. Stroitel’nye Materialy [Construction Materials]. 2017. No. 5, pp. 36–39. DOI: https://doi.org/10.31659/0585-430X-2017-748-5-36-39. (In Russian).


Print   Email