Paper Titles
Development and Research of Thermal Insulation Materials from Natural Fibres
p.285
High Temperature Cyclic Impact/Abrasion Testing of Boiler Steels
p.289
Influence of Metal Oxides Additives on the Porous Mullite Ceramics
p.293
Investigation of Hydration Features of the Special Concrete with Aggregates of Various Metal Particles
p.297
Modifiers Influence on Fibers Containing Polylactic Acid Biocomposites Exploitation Properties
p.301
Portland Cement Based Lightweight Multifunctional Matrix with Different Kind of Additives Containing SiO2
p.305
Studies of TiO2 Ceramics Structure after Thermal Treatment at Different Conditions
p.309
The Use of Sapropel in Development of Effective Thermal Insulating Materials
p.313
Polypropylene Composites Compounded with Natural Fibers Waste
p.319

Portland Cement Based Lightweight Multifunctional Matrix with Different Kind of Additives Containing SiO2

Article Preview

Abstract:

Additives containing SiO2 (ACS) and having pozzolanic properties such as metakaolin (MK), microsilica (MS) and milled autoclaved aerated concrete waste (MAACW) are promising materials for partially replacement of Portlandcement (PC) in matrix of lightweight building materials. Studies have shown that SA effects on the hydration process of PC matrix. The highest wetting heat release rate values were obtained using MS additive, and the lowest a mix of MS and MK additives. In a mix with both MS and MK additives, the maximal value of heat release rate was reached after 10 h and in a mix with MS additive after 13 h. MS additive extends while MK additive accelerates the hydration process of PC. The most effective plasticizer (P) was chosen according to the study of dynamic viscosity (DV) of PC matrix. It was fixed that surfactant (SU) in amount of 0.03 % (from PC) reduces the density of matrix about 30 % compared with the density of matrix without SU. Increased quantity of MAACW (from 5 to 15 % from PC) causes in increase of compressive strength of PC matrix (after 28 days curing) from 19 to 47 MPa.

You might also be interested in these eBooks
Engineering Materials & Tribology XXII View Preview

Info:

Periodical:

Key Engineering Materials (Volume 604)

Pages:

305-308

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.604.305

Citation:

Cite this paper

Online since:

March 2014

Authors:

Ina Pundienė*, Modestas Kligys, Jurga Šeputytė-Jucikė

Keywords:

Additives Containing SiO2, Density, Plasticizer, Portland Cement, Strength, Surfactant

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] M. Frías, J. Cabrera, Pore size distribution and degree of hydration of MK-cement pastes, Cem. Concr. Res. 30 (2000) 561-569.

DOI: 10.1016/s0008-8846(00)00203-9

Google Scholar

[2] M. Frías Rojas, J. Cabrera, The effect of temperature on the hydration rate and stability of the hydration phases of metakaolin-lime-water systems, Cem. Concr. Res. 32 (2002) 133-138.

DOI: 10.1016/s0008-8846(01)00642-1

Google Scholar

[3] M. Sinica, G. Sezemanas, M. Kligys, S. Česokas, Influence of a technogenic silicate product admixtures on silicate concrete properties, Mater. Sci. (Medžiagotyra) 12 (2006) 346-349.

Google Scholar

[4] M.V. Gerotto, A.R. Studart, M.D.M. Innocentini, V.C. Pandolfelli, S.S. Cabo, Kaolin, metakaolin and microsilica as fillers for high-alumina refractory castables, Am. Ceram. Soc. Bull. 81 (2002) 40-47.

Google Scholar

[5] A. Laukaitis, J. Kerienė, M. Kligys, D. Mikulskis, L. Lekūnaite, Influence of amorphous nanodispersive SiO2 additive on structure formation and properties of autoclaved aerated concrete, Mater. Sci. (Medžiagotyra) 16 (2010) 257-263.

DOI: 10.1016/j.conbuildmat.2011.06.035

Google Scholar