Open AccessThe effect of a plasticizer based on polymethylene naphthalene sulfonic acids on the structure of a magnesian stone
Author(s) -
Г. Ф. Аверина,
В. А. Кошелев,
L. Y. Kramar
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/962/2/022012
Subject(s) - naphthalene , plasticizer , electron microprobe , magnesium , cement , scanning electron microscope , chemistry , chemical engineering , materials science , organic chemistry , mineralogy , metallurgy , composite material , engineering
The article presents the results of a study devoted to identifying the effect of a plasticizer based on polymethylene naphthalene sulfonic acids on the structure of a magnesian stone. It is known that the strength characteristics of magnesian stone samples modified with various amounts of such additive have different strength, provided that the water/cement ratio does not change. This study allows to identify the relationship between strength characteristics and structural features of magnesia stone modified by additive, as well as the effect on the dosage of this additive on the formation of the main structural minerals of magnesia stone. Study of the samples structure, the electron-scanning microscopy method and an X-ray microanalyzer were used. According to the results of the study, it was found that the presence and amount of a plasticizer based on polymethylene naphthalene sulfonic acids promotes the various formation and distribution of the main structural phases of magnesia stone. The optimal amount of additive allows to get the most amorphized structure of magnesium pentaoxyhydrochloride, providing it with the highest strength characteristics.