A Stabilizing Additive as a Method for Optimization of Porous Structure of Lightweight Composites on the Basis of Geopolymeric Binder

When designing and manufacturing cellular composites, independently on the type of a binding component, one of the relevant problems is the formation of a uniform porous structure providing the optimal strength and also thermal-physical characteristics of a lightweight composite. The most problematic is to achieve the correct porous structure in the systems in two cases: the presence of a low-active binding matrix and long lines of formation of the strength of a matrix framework. In both cases, the forming porous structure, at the initial stage of composite obtaining due to the absence of minimum required early strength of the framework, has the trend to the destruction that leads to worsening of operational characteristics of the final material. Within the work, research in the study of possibility to use the cement binder as an additive which stabilizes the porous structure in cellular composites on the basis of geopolymeric binders, has been conducted. It is established that the introduction of 10% Portland cement of the binder mass makes it possible to reduce the density of geopolymeric foam concrete up to 21% at simultaneous increase in the compression strength up to 8%

N.I. KOZHUKHOVA, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
D.N. DANAKIN, Engineer V.G.

Shukhov Belgorod State Technological University (46, Kostyukova Street, Belgorod, 308012, Russian Federation)

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