Applications of Polyvinyl Alcohol in Dry-Mix Mortar
Release Time:
2016-06-01
Source:
Applications of Polyvinyl Alcohol in Dry-Mix Mortar
Applications of Polyvinyl Alcohol in Dry-Mix Mortar
I. Accelerator
Dosage: 0.3–0.7%
Low-temperature early-stage coagulant
Calcium formate
Accelerate cement hardening and enhance early strength.
II. Air-Entraining Agents (Air-Entraining Agents)
Dosage: 0.005–0.02%
During mortar mixing, the introduction of a large number of uniformly distributed microbubbles reduces the surface tension of the mixing water, thereby improving dispersion and reducing bleeding and segregation in the mortar–concrete mix. Additive 1: Rosin resin.
2. Alkyl salts
3. Nonionic surfactants 1. Enhance durability and freeze resistance
2. Reduce bleeding and segregation
III. Thixotropic Lubricant
Powder rheology additives specially processed for mineral-based (dry-powder) systems and paste systems.
Silicate minerals
1. Reduced flow resistance and excellent lubricity.
2. Enhance thixotropy
3. Facilitates mixing and pumping. Suitable for gypsum, putty, self-leveling mortar, and plastering mortar.
IV. Polyvinyl Alcohol
A water-soluble film-forming binder
Polyvinyl alcohol powder
1. Bonding
2. Film Formation
3. Poor water resistance
For use in interior and exterior wall putties, interface agents, and more.
V. Expansive Agents
Calcium (magnesium) oxide-based / exhibits slight expansion upon contact with water
UEA/AEA/HEA
Shrinkage cracking in repair mortar/concrete.
