How to address cracking and hollowing in plaster mortar?
Release Time:
2015-07-25
Source:
How to address cracking and hollowing in plaster mortar?
When it comes to interior wall plastering mortar, many people are familiar with it; however, are you aware that after application, issues such as cracking and hollowing can arise? And do you know how to effectively address and resolve these problems? Below, I will provide an overview of the common issues of cracking and hollowing in interior wall plastering mortar.
Cracking and hollowing in interior wall plastering mortar typically result from two major factors.
1. Material factors;
①. Insufficient aging time;
②. The insulation board has insufficient density;
③. Chalking of the insulation board material itself;
④. The thermal conductivity differs excessively;
⑤. The adhesive material and the substrate do not bond;
2. Factors during the construction process;
①. Incorrect construction methods;
②. The interface was not properly prepared before applying lime-based adhesives;
③. The bonding area does not meet the specified requirements;
④. Embedment depth and number of insulation board anchor nails.
⑤. Under intense sunlight, excessive moisture loss can easily occur, leading to cracking in the finishing mortar.
