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The management of rheological characteristics, retention and solidification kinetics of cement systems with the use of specially designed nanoscale modifiers has been proven. Modification of cement systems was made using SiO2 nanostructured synthesis nanostructures (KNM) based on the synthesis of Betonmix HP 1211-A hyperplasticizer with liquid glass. The peculiarity of this method lies in the fact that nanoparticles are obtained by the zol-gel method. This complex is used in conjunction with water when reinforcing nanomodifier cement systems.It has been established that the application of the synthesized KNM allows to reduce the amount of cement dough by 2.05 times, extends the retention time, and increases the strength of the solid on the first day by 4 times compared to the unchanged systems. The optimal KNM content is 1.0% of the cement mass. The obtained results are due to the fact that particles express the central role of new compounds in the structure, the key to crystallization, and crystallization. [ABSTRACT FROM AUTHOR]

One of the most important problems in high-strength cement systems, based on selfpropelled mix, is the lack of water for hydration. Autogenous sedimentation occurs when relative humidity diminishes inside the cement dough and drop of capillary pressure occurs. There are different opinions about the start of the autogenic collapse. The aim of the study is to determine the exact starting time of the autogenous collapse, which can cause internal complications in the interaction between self-extracting cement dough internal relative humidity and autogenous collapse. Cement dough was prepared using the Aydag sealite rod as a microfilter supplement to investigate the effect of seolite on autogenous crash as an additive to water. Autogenic sedimentation is determined according to ASTM C1698 standard. The relative humidity of the cement dough at the initial stage of fixation has been determined by an ethromometric method. The holding time is determined by the Vika device according to ASTM C191 standard. The results of the experiment showed that the relative humidity decrease was not observed until the end of the arrest. However, when the internal relative humidity begins to decline, the slope of the bend is observed. This bending moment is the beginning of the autogenous collapse, which can cause structural change. Thus, seolite has been identified as potentially inner water retention agent due to autogenous sediment tests carried out at that time. [ABSTRACT FROM AUTHOR]