High-durability liquid alkali-free accelerator and preparation method thereof

The invention discloses a high-durability liquid alkali-free setting accelerator for sprayed concrete and a preparation method thereof. The high-durability liquid alkali-free setting accelerator comprises the following raw materials in parts by mass: 400-600 parts of aluminum sulfate, 10-50 parts of...

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Bibliographic Details
Main Authors LI XIAOFAN, PENG JING, WANG JING, LIU JUNYUAN, ZHA YANPENG, KONG TAO, ZHAO YUXIANG
Format Patent
LanguageChinese
English
Published 11.05.2021
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:The invention discloses a high-durability liquid alkali-free setting accelerator for sprayed concrete and a preparation method thereof. The high-durability liquid alkali-free setting accelerator comprises the following raw materials in parts by mass: 400-600 parts of aluminum sulfate, 10-50 parts of organic alcohol amine, 5-20 parts of super absorbent resin, 10-100 parts of an early strength component, 5-20 parts of a stabilizer and 300-500 parts of water. According to the invention, the product can meet the latest national standard of the accelerator, and has the advantages that the alkali content is low, the one-day compressive strength is high, the 28-day compressive strength ratio is greater than 100%, the 90-day compressive strength is not reduced, and the like; the super absorbent resin plays a role in thickening and stabilizing in the liquid setting accelerator, the concrete setting can be accelerated and the resilience can be reduced through the physical water absorption effect in the initial mixing s
Bibliography:Application Number: CN201911085922