Application and problem analysis of hydroxypropyl methylcellulose in putty!
Release Time:
Apr 18,2024
Insufficient cementitious materials, insufficient water retention of cellulose, low calcium content of heavy calcium, and construction performance: improved by bentonite and starch ether, resulting in hollowing; Insufficient adhesion to the wall, layering: interface treatment, strength: can also be adjusted through calcium powder grading
Insufficient cementitious materials, insufficient water retention of cellulose, low calcium content of heavy calcium, and construction performance: improved by bentonite and starch ether, resulting in hollowing; Insufficient adhesion to the wall, layering: interface treatment, strength: can also be achieved through calcium powder neutral putty:
Powder removal: insufficient cementitious materials, insufficient water retention of cellulose, and low calcium content of heavy calcium
Construction performance: improved through bentonite and starch ether
Empty drum; Insufficient adhesion to the wall caused
Layering: interface processing
Strength: can also be adjusted through calcium powder grading
Grey calcium based putty:
The problems that occur include hollowing, yellowing due to powder removal, poor construction performance, powder removal, layering, cracking, and post thickening
Powder removal: insufficient cementitious materials, insufficient or insufficient cellulose water retention, impure gray calcium
Poor construction performance: improved through bentonite and starch ether
Empty drum; Insufficient adhesion to the wall results in appropriate addition of latex powder
Layering: interface processing
Yellowing: Improper selection of cellulose
Cracking: Cracking of the base layer or excessive strength, hard cracking, and excessive coating thickness
Post thickening: Due to different water absorption rates of heavy calcium, it is recommended to choose heavy calcium powder with zero water absorption or extremely low water absorption; Gray calcium contains undigested GaO.
Cement based putty:
The problems include hollowing, poor construction performance, powder peeling, layering, cracking, insufficient water resistance, and false setting
Powder removal: insufficient cementitious material, insufficient cellulose water retention, or insufficient addition amount
Poor construction performance: improved through bentonite and starch ether
Empty drum; Insufficient adhesion to the wall, resulting in reasonable addition of latex powder
Layering: interface processing
Yellowing: Improper selection of cellulose
Insufficient water resistance: insufficient latex powder and insufficient cementitious materials
Cracking: Cracking of the base layer or excessive strength, hard cracking, coating too thick, filling holes with putty
False coagulation: Sodium gluconate can be added to extend the operational time and adjust the grading
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