Gypsum-based self-leveling advantage


Release time:

2020-07-03

Author:

Source:

Gypsum-based self-leveling

Gypsum-based self-leveling advantage
 
 
Gypsum-based self-leveling mortar is a kind of dry powder mortar specially used for ground leveling, which is prepared and mixed by gypsum material, special aggregate and various construction chemical additives in the factory. Self leveling mortar is an ideal material for building ground leveling, which can be used as the bedding base of all kinds of ground decoration materials, and can also be directly used as the surface floor. In the 1960 s, it originated in Europe. In the European market, gypsum-based self-leveling mortar accounted for a large part of the ground mortar. In the 1980 s, China began to develop gypsum-based self-leveling mortar. In 2007, China formulated and implemented the corresponding product standard JC/T1023-2007 "gypsum-based self-leveling mortar".
 
The main cementitious material of gypsum-based self-leveling mortar is gypsum, and it has the performance of automatic leveling and has many advantages:
 
1. It is used as a "floor heating" leveling covering layer with good thermal insulation performance (compared with other heating methods, the energy saving range of floor heating is about 20%, if zone temperature control device is adopted, the energy saving range can reach 40%); It will not crack and bulge due to thermal expansion and contraction like cement mortar layer. In addition, the hardened floor of gypsum-based self-leveling mortar is elastic and the feet feel warm and comfortable; and has the sound insulation effect. Gypsum-based self-leveling mortar is better than traditional cement mortar in terms of strength stability and thermal stability, and is the preferred material for floor heating systems.
 
2. Under the same conditions, the shrinkage rate of cement-based self-leveling mortar is much higher than that of gypsum-based self-leveling mortar. By 28 d, the shrinkage value of cement-based self-leveling mortar is about 1.17 mm/m. With the extension of time, the shrinkage value of cement-based self-leveling mortar reaches about 1.3 mm/m after 90d, but the shrinkage value of gypsum-based self-leveling mortar is still maintained at about 0.19 mm/m, that is to say, in cement-based self-leveling mortar due to high shrinkage value may lead to cracking of self-leveling mortar. The heat resistance of gypsum-based self-leveling at 50 ℃ is basically stable, and the shrinkage value, flexural and compressive strength of 28d and 194 d are almost the same.
 
3. The porosity of the gypsum material itself can play a role in sound insulation. Gypsum-based self-leveling mortar has low density, which can reduce the bearing quality of buildings, and does not contain casein, VOC and other harmful substances, no ammonia release, which has significantly improved the environmental protection standard of the whole decoration, and is a green and energy-saving product. Gypsum-based self-leveling mortar as a ground leveling layer has the advantages of no other materials, an important product to replace cement and reduce carbon emissions, and has social and economic benefits of energy saving and emission reduction.
 
4, the use of gypsum-based self-leveling mortar construction of the ground, accurate size, high level, no hollowing, no cracking; easy and convenient operation, high efficiency, short time-consuming (as long as 1 days can be on, shorten the decoration period); and can be used pumping construction, construction speed than the traditional ground material 5-10 times faster. The new floor paving process reduces the thickness and makes your indoor space more open.
 
5, in the use of the process, the use of self leveling supporting installation, it is easy to meet the requirements of the floor installation, it can provide a stable base surface, the base surface life can reach at least 50 years; provide the ground leveling accuracy so that the floor paving joint after installation in the same plane, thus protecting the above surface material, and prolong the service life of the floor material.
 
6, the visual effect is good: self-leveling of the ground leveling effect is obvious, making the floor paved on the self-leveling, appearance more beautiful, smooth base surface to ensure that the floor can reach the approximate mirror effect, to obtain the visual enjoyment of beauty;
 
Shandong new thick layer self leveling mortar, is a response to the green energy saving policy strongly recommended products, has been widely used in Shandong, Beijing, Shanghai, Nanjing, Anhui and other regions. Next year the market application will rise in a straight line. Xindadi insists on choosing high-quality auxiliary materials with high quality, good performance, environmental protection and economic benefits. Shandong Xindadi Group sincerely invites friends from all over the world to join us!
 

Key words:

Gypsum-based self-leveling