The efficiency of plasticizing surfactants in alkali-activated cement mortars and concretes
Дата
2018
Автори
Runova, Raisa
Gots, Volodymyr
Rudenko, Igor
Konstantynovskyi, Oleksandr
Lastivka, Oles’
Заголовок журналу
Журнал ISSN
Назва тому
Видавець
EDP Sciences
Анотація
Functionality of mortar and concrete mixes is regulated by
surfactants, which act as plasticizers. The molecular structure of these
admixtures can be changed during hydration of alkali-activated cements
(AAC). The objective was to determine the chemical nature of plasticizers
effective for property modification of mortars and concretes based on
AACs with changing content of granulated blast furnace slag from 0 to 100
%. The admixtures without ester links become more effective than
polyesters when content of alkaline component increase. The admixtures
effective in high alkaline medium were used in dry mixes for anchoring
(consistency of mortar 150 mm by Vicat cone; 1 d tensile strength in
bending / compressive strength of mortar 6.6 /30.6 MPа) and in readymixed
concretes (consistency class changed from S1 to S3, S4 with
consistency safety during 60 min; 3 d compressive strength of modified
concrete was not less than the reference one without admixtures).
Опис
https://doi.org/10.1051/matecconf/201823003016
Ключові слова
alkali-activated cement, surfactan, plasticizing admixture, mortar, concrete, кафедра технології будівельних конструкцій і виробів
Бібліографічний опис
The efficiency of plasticizing surfactants in alkali-activated cement mortars and concretes / R. Runova, V. Gots, I. Rudenkо [etc] // MATEC Web of Conferences. - TRANSBUD-2018. - VoI. 230 (2008), 03016 . - P. 1 - 7. - Bibliogr. : 22 titl.