lightweight plastering gypsum
lightweight plastering gypsum
As a new type of wall plastering material with the advantages of environmental protection, light weight and strong adhesion, lightweight plastering gypsum is widely used in indoor decoration projects. Standard construction operations can not only give full play to its material advantages, but also effectively avoid quality problems such as wall hollowing, cracking and peeling, ensuring the stability and aesthetics of the project. The following are the core precautions that need to be focused on during the construction process:

Pre-construction Preparation Requirements

  • Mixing tools and containers must be thoroughly cleaned in advance to ensure no residual cement residues, dust or other impurities, so as to avoid impurities affecting the adhesion performance and construction flatness of the gypsum.
  • The construction wall needs pre-treatment: first clean it comprehensively with clean water to remove floating dust, oil stains, hollow layers and other pollutants. Construct only after the wall reaches the state of "no standing water and moist surface", which not only ensures the adhesion between gypsum and the wall, but also avoids cracking of the plastering layer caused by unbalanced moisture.
  • Clarify the scope of material use: lightweight plastering gypsum is only suitable for dry indoor projects. It is strictly prohibited to use it in areas that are permanently humid or easily exposed to water, such as toilets, kitchens and exposed parts of balconies, to prevent material deterioration due to moisture and affect project quality.

Construction Process Operation Specifications

  • Clean drinking water must be used for gypsum mixing. Add water and stir strictly according to the ratio specified in the product manual. The mixed gypsum should be used up within 50 minutes to avoid loss of workability due to setting and hardening. Re-mixing with additional water is prohibited.
  • Before plastering the shear wall, screed processing must be carried out first. The spacing between screeds is controlled at 1.5-2 meters, and the height is consistent with the finished plastering surface. Ensure the screed lines are straight and smooth to provide a flat benchmark for subsequent plastering and reduce hollowing caused by bubbles.
  • Plastering should be done in layers and compacted. The thickness of each plastering layer should not exceed 10-15 millimeters. Construct the next layer only after the previous layer of gypsum has initially set, to avoid interlayer detachment or shrinkage cracking caused by excessive thickness of a single plastering layer.

Post-construction Maintenance Points

  • During the setting and hardening period of the plastering layer (usually 24-48 hours after construction), avoid direct sunlight, rain impact and external vibration, to prevent cracking caused by rapid evaporation of surface moisture or structural instability affected by external forces.
  • Maintain good ventilation in the construction environment during maintenance, and control the temperature between 5-35℃. Avoid high temperature, low temperature or high humidity environments affecting the strength development of gypsum, ensuring the plastering layer finally meets the design strength requirements.
 
Strictly implementing the above construction precautions can maximize the material characteristics of lightweight plastering gypsum and ensure the construction quality and service life of wall projects. If you encounter specific operational questions in actual construction, you can further communicate to refine the solution.