Study of the Influence of Styrene-Acrylic Dispersion on the Physic-Mechanical Properties of Cement-Sand Mortars
V. B. Martynovaa, Ye. V. Egorovaa, K. A. Korchaginaa, D. V. Danilovaa, A. V. Paramonovab
a Donbas National Academy of Civil Engineering and Architecture
b Lugansk 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.
Link 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: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 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: 15.10.2024). (in Russian)
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