Open AccessStudy on the Preparation and Performance of An Early Strength Agent for Liquid Alkali-Free Accelerator
Author(s) -
Yu Jiang,
Lei Deng,
Wenhong Chen,
Jianmei Li
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/647/1/012065
Subject(s) - compressive strength , alkali metal , tetramethylammonium hydroxide , mortar , calcium hydroxide , hydroxide , materials science , sodium hydroxide , methacrylic acid , composite material , chemistry , inorganic chemistry , organic chemistry , nanotechnology , polymerization , polymer
An early strength agent applied to liquid alkali-free setting accelerator was synthesized at 60°C-70°C by taking methacrylic acid, silicic acid, calcium hydroxide, and hydroxyethyl ethylenediamine as the raw materials. The experiment showed that after 4% early strength agent was added into the accelerator, the 1d compressive strength and 28d compressive strength of the quick-setting mortar and shotcrete were obviously improved, so the industrialized application of this early strength agent can be realized.