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Study of the Influence of Styrene-Acrylic Dispersion on the Physic-Mechanical Properties of Cement-Sand Mortars

V. B. MartynovaDonbas National Academy of Civil Engineering and ArchitectureYe. V. EgorovaDonbas National Academy of Civil Engineering and ArchitectureK. A. KorchaginaDonbas National Academy of Civil Engineering and ArchitectureD. V. DanilovaDonbas National Academy of Civil Engineering and ArchitectureA. V. ParamonovaLugansk National Agrarian University
Abstract: The effect of styrene-acrylic dispersion on the mobility indices of cement-sand mortar mixtures and the values of the mechanical properties of cement-sand mortars are studied. The dependence of the characteristics of the cement-sand mortar mixture and mortar on the concentration introduced into the composition of the dispersion is given. It was found that the introduction of styrene-acrylic dispersion significantly increases the strength characteristics of solutions at the age of 28 days of standard hardening. When using a fine aggregate of reduced quality in a mixture, in particular, with a high content of dusty clay particles, a significant increase in the tensile strength in bending by 54 and 43.8 % when using high-quality fine aggregate is noted. The value of compressive strength is increased by 30.3 % when using washed aggregate; when using a filler of reduced quality, a change in the value of the compressive strength is not fixed.

Keywords: slump, strength, cement-sand mortar, styrene-acrylic dispersion.

Pages: 128-132.

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For citation: Martynova, V. B.; Egorova, Ye. V.; Korchagina, K. A. [et al.]. Study of the Influence of Styrene-Acrylic Dispersion on the Physic-Mechanical Properties of Cement-Sand Mortars. – Text : electronic. – In: <em>Proceeding of the Donbas National Academy of Civil Engineering and Architecture</em>. – 2020. – Issue 2020-1(141) Modern building materials. – Р. 128-132. – URL: https://donnasa.ru/publish_house/journals/vestnik/2020/2020-1(141)/st_19_martynova_egorova_korchagina_danilova_paramonova.pdf (date of access: 22.12.2024). – ISSN 2519-2817.

Issue 2020-1 (141)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture