Abstract
The patterns of formation of highly functional concretes structure, which consist in formation of an ordered, low-porous, fine-crystalline microstructure of cementitious matrix, in particular due to pozzolanic reactions of the non-clinker part of the binder with formation of an additional amount of low-basic hydrocarbons, are investigated.
Highlights
When obtaining high strength concrete composites, an important characteristic is the density of filling at the micro- and nanostructural level
It is likely that MTK and MS in the concrete compound create the conditions for transformation of unstable and soluble calcium hydroxide into a strong crystalline calcium silicate hydrate (CSH)
Modification of the concrete composite with the MS and MTK complex creates the conditions for transformation of unstable and soluble calcium hydroxide into a strong crystalline calcium silicate hydrate. This compacted concrete structure gives a significant increase in the strength value
Summary
When obtaining high strength concrete composites, an important characteristic is the density of filling at the micro- and nanostructural level. There are a number of factors that can affect the physical and mechanical properties of concrete. High-resolution X-ray diffractometry, atomic force microscopy and secondary ion mass spectrometry methods provide this opportunity [11,12,13,14]. This is due to the fact that a number of physical problems regarding the structural characteristics of the studied crystals with a large number of uncontrolled impurities and their role in the formation of the ultrahigh-strength concrete structure remain unknown [15]
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