employee
Kraskovo, Moscow, Russian Federation
employee
Moscow, Moscow, Russian Federation
employee
Korolev, Moscow, Russian Federation
employee
Moscow, Moscow, Russian Federation
691.335
67.09
08.06.01
383
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The use of anhydrite binder as an alternative to cement binder requires the study of its properties and the possibility of opti-mizing the composition of anhydrite mixtures to obtain materials with the required characteristics. The study and optimization of the hydration process of anhydrite binders with activating additives is an important task for the construction industry. The use of superplasticizers leads to improved workability of anhydrite mixture and allows to achieve the required mobility without in-creasing the water-cement ratio. The use of activating additives with superplasticizers can improve the quality and speed up the production of construction materials. The introduction of activating additives can be carried out both together with the binder in the production of construction materials and by their introduction into the finished material at the construction site, which al-lows to simplify the process of anhydrite binder application. This paper studies the influence of activating additives of different nature based on Portland cement, potassium sulfate and iron (II) sulfate together with different superplasticizers on the physical and mechanical properties of anhydrite composite. It is shown that the choice of superplasticizer and curing activator plays an important role in obtaining a building material based on anhydrite binder with the required characteristics. The use of super-plasticizers leads to the improvement of anhydrite mixture workability and allows to achieve the required mobility without in-creasing the water-cement ratio. The obtained results allow us to conclude that it is possible to successfully replace cement bind-er in the composition of construction dry mixtures with anhydrite binder with preservation of their quality.
anhydrite binder, hardening activator, plasticizer, compressive strength, mixture mobility
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