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What is the difference between gypsum-based self-leveling mortar and fine stone concrete used for floor leveling?

By |2024-07-12T06:28:30+00:00July 12th, 2024|Industry knowledge|

What is the difference between gypsum-based self-leveling mortar and fine stone concrete used for floor leveling? As a floor leveling layer, gypsum-based self-leveling mortar has advantages that other materials cannot match. It is an important product that replaces fine stone concrete and reduces carbon emissions, and has social and economic benefits of energy conservation and

Why do exterior wall tiles hollow out and fall off?

By |2024-07-10T07:34:47+00:00July 10th, 2024|Industry knowledge|

Why do exterior wall tiles hollow out and fall off? 1. Temperature changes. The temperature difference between different seasons and day and night makes the facing tiles affected by temperature stress in three-dimensional directions. The facing layer will produce local stress concentrated at the intersection of the vertical and horizontal walls or the roof and

Treatment and prevention of concrete sanding

By |2024-07-08T06:04:03+00:00July 8th, 2024|Industry knowledge|

Treatment and prevention of concrete sanding 1 Treatment methods for sanding on concrete surface The main method for treating sanding on concrete surface is: clean the sanding position to the structural layer. Then, according to the specific project, use appropriate methods to repair and reinforce the sanding parts. The specific methods are as follows. 1)

Analysis of the causes of concrete sanding(Ⅱ)

By |2024-07-05T06:39:01+00:00July 5th, 2024|Industry knowledge|

Analysis of the causes of concrete sanding Analysis of the causes of concrete sanding---Construction reasons 1) Formwork reasons The joints between the formwork used in concrete projects are not tight. After the concrete is poured and vibrated, cement slurry will leak out from the gaps in the formwork. This causes the aggregate on the surface

Analysis of the causes of concrete sanding

By |2024-07-05T06:35:34+00:00July 4th, 2024|Industry knowledge|

Research shows that the main cause of sanding is concrete bleeding, which causes the water-cement ratio of the concrete surface to be too large and the hydration is relatively sufficient. The main reasons affecting concrete bleeding are raw materials, mix ratio, construction and maintenance. Raw material reasons 1) The cement strength grade is low, and

Measures to prevent wall cracks after interior walls plastering (Ⅱ)

By |2024-07-02T07:05:26+00:00July 2nd, 2024|Industry knowledge|

Measures to prevent wall cracks after interior wall plastering(Ⅰ)Measures to prevent hollowing of walls: 1. Before plastering or roughening, it is necessary to clean the dirt on the wall and water it in advance. 2. Roughening treatment is used for the concrete base to enhance the bonding strength. 3. If the total thickness of the

Common problems of exterior wall insulation bonding mortar

By |2024-07-02T06:45:01+00:00July 1st, 2024|Industry knowledge|

Why does the insulation layer fall off? 1. Base structure factors. The outer wall of the frame structure is at the joint between the concrete beams and masonry. The insulation layer is easily damaged due to the deformation of the masonry. The scaffolding openings are not solid. The insulation layer is damaged due to the

The role of the interface agent

By |2024-07-02T06:38:35+00:00June 25th, 2024|Industry knowledge|

Interface agent is also called interface treatment agent. Interface agent, in essence, is an adhesive. Like the common interface agent we use, it is generally made of vinyl acetate-ethylene. The role is generally the following five points. ① Principle of action. When we use interface agent, it is the surface of the wall or the

Additives that affect the properties of gypsum(Ⅲ)

By |2024-06-19T06:36:55+00:00June 19th, 2024|Industry knowledge|

09.Water reducer Water reducer can improve the fluidity of gypsum slurry and the strength of gypsum hardened body. And it is usually used for gypsum self-leveling mortar and plaster. At present, the domestic water reducers are arranged in terms of fluidity and strength effect as polycarboxylic acid retarding water reducer, melamine high-efficiency water reducer, tea-based

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