Common Problems in Self-Leveling Cement Construction (Part 1)
Release Time:
2015-09-14
Source:
Common Problems in Self-Leveling Cement Construction (Part 1)
Self-leveling cement Common Construction Issues
I. Reduced area for self-leveling screed application
1. The impact of construction workers’ techniques and level of proficiency;
2. Excessive standing time after mixing leads to degraded self-leveling flow;
3. Excessive water absorption by the substrate causes the self-leveling compound to lose its flowability in a short period of time;
4. The interface agent is rolled on unevenly;
5. The construction thickness is incorrect;
6. Quality issues with the self-leveling compound itself.
7. Adding too much or too little water;
8. Construction temperature is too low;
II. Delamination and Cracking of Self-Leveling Flooring
Sand is blowing off the original ground;
Areas where the interface agent has not been applied or where the interface agent is not fully covering;
The original floor was not thoroughly cleaned. Residual contaminants include dust, old paint, and metal powder.
There is standing water on the ground, or it contains acids, alkalis, salts, oils, and other substances;
The existing floor is a non-absorbent surface, such as marble, ceramic tile, or steel plate flooring, yet the corresponding interface agent was not used.
The existing floor surface is cracked, and the contraction joints were not filled prior to the self-leveling screed application.
Quality issues with the self-leveling compound itself.
3. Excessive air bubbles in the self-leveling compound
Sand is blowing off the original ground;
The original ground surface dries and absorbs water quickly;
Areas where the interface agent has not been applied or where the interface agent is not fully covering;
The interface agent does not provide adequate sealing.
4. Small gluing and spreading area
Self-leveling has not been applied;
Construction techniques and skill level of workers;
The gear-hobbing model does not match;
Low construction temperature;
Low construction temperature;
