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Updated: Jun 26, 2025

Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity
Published on: December 11, 2014
Investigation of Effect of Proposed Two-Stage Foam Injection Method and Modified Additive on Workability of Foam
Rauan Lukpanov1,2, Duman Dyussembinov1,2, Aliya Altynbekova1,2
1Solid Research Group, LLP, Astana 010008, Kazakhstan.
Abstract:
This article presents the results of an investigation of the proposed method and the influence of a modified additive on foam concrete properties. X-ray diffraction analysis showed that the modified additive has a variable mineralogical composition, and the joint use of the components contributes to the synergistic effect, improving the processes of cement hydration. Microscopy of the foam concrete samples showed the presence of microcracks and micropores in samples both with and without the additive. However, the use of the additive significantly reduced their number and size, which indicates an improvement in the structure of the material. The strength values showed that the samples with the additive have high strength. In particular, the strength values of samples of type 3 at different stages of curing exceed those of samples of type 1 by 1.32-1.51 times and samples of type 2 by 1.07-1.10 times. The obtained strength values are 2.82-3.21 MPa for type 1, 3.64-4.04 MPa for type 2, and 4.39-4.84 MPa for type 3, which corresponds to grade D600. The evaluation of water absorption also confirmed the advantages of the proposed method and the additive, significantly reducing the water absorption of the samples and increasing their hydrophobicity. The obtained values of water absorption are 13.8-16.6% for type 1, 13.7-16.1% for type 2, and 9.5-11.2% for type 3.
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