Engineering and Technology
| Open Access |
DOI: Optimization and Performance Evaluation of Non-Autoclaved D400 Foam Concrete Modified With GGBFS-Type Slag, Activated Natural Zeolite and Sika® Viscocrete®-1095
Asamatinov Marat , Karakalpak State University, Uzbekistan Aliev Paraxat , Karakalpak State University, Uzbekistan Qodirova Xolida , Karakalpak State University, Uzbekistan Begjanov Timur , Karakalpak State University, UzbekistanAbstract
The present study develops and evaluates a non-autoclaved D400 foam concrete modified by a multi-component chemical-mineral system based on a locally applicable GGBFS-type slag, activated natural zeolite, a metakaolin-gypsum complex modifier, an AS setting accelerator and the polycarboxylate ether superplasticizer Sika® ViscoCrete®-1095. The work was aimed at improving the performance of low-density foam concrete without increasing its density beyond the D400 class. Cement paste tests were first used to determine the safe accelerator range by normal consistency and setting time. Fine-grained cement-sand systems were then used to separate the effect of accelerator dosage and water-reducing admixture from the instability of foam. Finally, eight D400 foam concrete compositions were prepared and tested under normal curing and thermal-moisture curing. Strength, density, thermal conductivity, water absorption, softening coefficient, moisture loss, shrinkage deformation, XRD/DTA/TG and SEM indicators were analyzed. The rational composition contained 30% GGBFS-type slag, 8% complex modifier, 0.07% AS accelerator and Sika® ViscoCrete®-1095. Compared with the control D400 composition, the optimized system increased 28-day compressive strength from 2.21 to 4.57 MPa under normal curing and from 1.58 to 3.35 MPa after thermal-moisture curing. Thermal conductivity decreased to 0.073-0.080 W/(m·°C), water absorption decreased from 53.2% to 17.3%, and shrinkage decreased to 0.64-0.68 mm/m. The results confirm that a combined dispersion-packing and early-structure-stabilization approach is effective for producing high-performance non-autoclaved foam concrete from locally adaptable mineral resources.
Keywords
Non-autoclaved foam concrete, GGBFS-type slag, activated natural zeolite
References
Gorlov Yu.P., Merkin A.P., Ustenko A.A. Technology of Thermal Insulation Materials. Moscow: Stroyizdat; 1980. 399 p.
Gorchakov G.I., Bazhenov Yu.M. Construction Materials. Moscow: Stroyizdat; 1986. 688 p.
Sakharov G.P., Strelbitskiy V.P., Voronin V.A., Skorikov E.P. Non-autoclaved porous concrete for single-layer building envelopes. Proceedings on Building Thermal Physics and Energy Saving. Moscow: NIISF; 2000.
Zhabin D.V., Sokov V.N. Properties of foam concrete in our hands. Technologies of Intelligent Construction. 2014;1:58-62.
Morgun L.V. Analysis of structural features of foam concrete mixtures. Construction Materials. 2005;12:44-46.
Shakhova L.D., Chernositova E.S. Acceleration of foam concrete hardening. Construction Materials. 2005;5:3-7.
Volzhenskiy A.V., Ivanov I.A., Vinogradov B.N. Use of Ashes and Fuel Slags in Production of Construction Materials. Moscow: Stroyizdat; 1984.
Bazhenov Yu.M. Concrete Technology. Moscow: ASV Publishing; 2011. 501 p.
Rebinder P.A. Surface Phenomena in Disperse Systems. Physicochemical Mechanics. Moscow: Nauka; 1979. 381 p.
Tikhomirov V.K. Foams: Theory and Practice of Production and Destruction. Moscow: Chemistry; 1983. 263 p.
Gorshkov V.S., Timashev V.V., Saveliev V.G. Methods of Physico-Chemical Analysis of Binders. Moscow: Higher School; 1981. 335 p.
Sika. Technical data sheet: Sika® ViscoCrete®-1095 polycarboxylate ether superplasticizer. Manufacturer technical documentation.
Download and View Statistics
Copyright License
Copyright (c) 2026 Asamatinov Marat, Aliev Paraxat, Qodirova Xolida, Begjanov Timur
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors retain the copyright of their manuscripts, and all Open Access articles are disseminated under the terms of the Creative Commons Attribution License 4.0 (CC-BY), which licenses unrestricted use, distribution, and reproduction in any medium, provided that the original work is appropriately cited. The use of general descriptive names, trade names, trademarks, and so forth in this publication, even if not specifically identified, does not imply that these names are not protected by the relevant laws and regulations.