Effect of Crystalline Hydrate Solutions on Physical and Mechanical Properties of Cement Paste under Low Temperatures
Abstract: The effect of the admixture of crystalline hydrate solutions Master X-Seed 45 on the physical and mechanical properties of Portland cement during hardening under normal conditions and at low (negative) temperatures was studied. It was shown that the admixture Master X-Seed 45 significantly reduces the setting time of cement paste, especially the end of setting. In the case of using the superplasticizer admixture based on polycarboxylate esters MasterGlenium ACE 430, the setting time is significantly extended, which is due to the adsorption of the polycarboxylate polymer on the surface of the mineral particles of Portland cement clinker, which slows down its hydration. It is possible to compensate for the retarding effect with the optimal dosage of the Master X-Seed 45 + MasterGlenium ACE 430 admixtures complex. Hardening of cement paste under normal conditions is significantly accelerated, as well as absolute values of compressive strength increase with increased dosages of the Master X-Seed 45 admixture. At the same time, when hardening at low (negative) temperatures, the effect of accelerating hardening is achieved with a lower dosage and optimal concentration of the admixtures complex.
Keywords: crystalline hydrate solution, superplasticizer, physical and mechanical properties, setting time, hardening, strength.
Pages: 90-97.
For citation:
For citation: Voronenko, M. E.; Zaichenko, N. M. Effect of Crystalline Hydrate Solutions on Physical and Mechanical Properties of Cement Paste under Low Temperatures. – Text : electronic. – In: <em>Proceeding of the Donbas National Academy of Civil Engineering and Architecture</em>. – 2025. – Issue 2025-1(171) Modern building materials. – Р. 90-97. – doi: 10.71536/vd.2025.1c171.11. – edn: bjeqxz. – ISSN 2519-2817. (in Russian)
Issue 2025-1 (171)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture