The paper presents the results of research concerning the peculiarities of modern High Performance Concretes based on cementitious systems "Portland cement – active mineral additives – micro fillers – superplasticizers – accelerators of hardening". Physico-chemical regularities of structure formation of super plasticized cementitious systems are established.
In the article the features of reinforced concrete hardening at different temperature conditions and the current issues of preparation technology of Self-Сompacting Сoncretes (SCC) on the basis of superplasticized cementitious systems, combining knowledge of structure and modifying Portland cement compositions "Portland cement – active mineral additives – microfiller – superplasticizer – accelerator of hardening" to search for rational making provision of technical and building properties of concrete in the changing factors of its composition, technology and exploitation are shown.
In the article the analysis of literary sources concerning methods of gypsum binders modification is shown. It is shown that today more and more attention is paid on the ecology of production and the maximum efficiency of the use of natural resources, therefore the development of non-klinker binders, such as anhydrite and gypsum, is relevant.
Досліджено кінетику некаталітичних та каталітичних процесів ацилювання в масі 2-гідроксиетилметакрилату (НЕМА) і гідроксигексаоксипропілакрилату (РРА6) фталевим ангідридом (ФA). Вперше синтезовано продукт взаємодії ФA та РРА6. Підтверджено структуру синтезованих сполук методами ІЧ-спектроскопії та молярної рефракції.