The problem of wall hollowing is more common in the process of house decoration and long-term residence, which not only affects the aesthetics of the wall, but also may pose a potential threat to the safety of the house. This article will delve into the causes, effects and effective solutions of wall hollowing.
First, the cause of the hollowing of the wall
The hollowing of the wall mainly refers to the separation between the wall and the plastering mortar, forming a void. The causes of this problem are varied, including:
1. Construction quality problemsDuring the construction process, if the humidity of the wall does not meet the requirements, the mortar ratio is unreasonable or the construction operation is not standardized, such as uneven application, insufficient plastering strength, etc., it may lead to the hollowing of the wall.
2. Wall material problemsInferior mortars or adhesives, as well as problems with the wall material, such as high internal porosity, can affect the bond strength of the wall to the mortar.
3. Influence of environmental factorsEnvironmental factors such as long-term moisture and large temperature changes will also affect the bonding performance of the wall and mortar.
Second, the impact of wall hollowing
Although wall hollows may not be easy to detect in the early days, their effects are multifaceted and far-reaching:
1. Aesthetic impact: The wall surface with serious hollowing will crack and fall off, which will seriously affect the aesthetics of living.
2. Safety hazardsIf the hollow drum on the wall is not treated in time, it may cause the wall tiles and decorative materials to fall off over time, causing physical injury.
3. Impaired functionFor example, hollow walls in bathrooms and kitchens may affect the integrity of the waterproof layer, leading to water seepage, mildew and other problems.
4. Increase maintenance costsIn the event of a severe hollowing, the wall may need to be refurbished, adding additional repair costs.
3. Detection method of wall hollowing
Before dealing with wall hollowing, accurate inspection is first required. Commonly used detection methods include:
1. Percussion method: Gently tap the wall with a small hammer or finger and listen to the sound. The hollow drum part usually makes a hollow sound.
2. Visual inspection: Carefully observe whether the wall surface has cracks, peeling and other abnormal phenomena.
3. Professional instrument testing: For the hidden hollow drum problem, you can use professional testing instruments for accurate positioning.
Fourth, the solution of wall hollowing
1. Small area hollow drum treatment: For hollow drums with a small area, you can drill holes in the hollow drums, inject special adhesives, and then repair the surface after they are dry.
2. Large-area hollow drum treatmentIn the case of a large hollow drum, it may be necessary to remove all the wall materials of the hollow drum part, and re-plaster and decorate it.
3. Precautionary measuresStrengthening construction quality management, selecting qualified materials, and strictly controlling the construction environmental conditions are the keys to preventing wall hollowing.
Fifth, how much does the hollow drum area of the wall not exceed that can be treated?
The treatment standards for wall hollowing may vary depending on the region, building code, and construction quality requirements. In general, minor wall hollowing (e.g., less than or equal to 50 mm in diameter and with a small hollow area) may not require immediate treatment in some cases. However, if the hollow area is large, especially when the hollow area is more than 1 square meter or the hollow drum area accounts for more than 10% of the total area of the wall, it is usually necessary to repair it to avoid problems such as spalling and cracks that may occur on the wall in the future.
Repair methods may include local knockout rework, grouting reinforcement, etc. In order to ensure safety and construction quality, it is recommended to consult professional construction or maintenance personnel for evaluation and treatment when you find a wall hollow. Please also note that standards and treatment methods may vary from region to region, so it is best to refer to local building codes and construction quality standards.
The problem of wall hollowing cannot be ignored, which not only affects the aesthetics and comfort of living, but also may bring safety hazards. Understanding the causes and solutions is crucial to ensuring the quality of housing and the safety of living. Identifying problems with the right detection methods and adopting effective solutions can ensure the stability and aesthetics of the walls, creating a safe and comfortable living environment.