Advantages of thick layer self leveling cement mortar in modern construction industry

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Shandong Xindadi Group


Advantages of thick layer self leveling cement mortar in modern construction industry

The rapid development of the building decoration industry, making people on the ground more and more high. The concrete floor of the continuous cracking, sand has been unacceptable. Because the ground is more and more important to people's daily life and production activities, more and more customers require the ground to achieve both functional and decorative effects. The original old ground in the use of many years after the emergence of uneven, hollowing, cracking, sand, this is the customer in re-build the ground must face the problem. Due to the convenient construction of self leveling mortar, fast curing, after the construction of the ground level, faster put into use and other advantages, making the self leveling mortar to quickly solve the problem of the ground is unique and effective method.
Self leveling mortar is composed of cement or gypsum cementitious materials, fine aggregate, filler and additives, and water (or emulsion) after mixing with fluidity or a little auxiliary paving can automatically leveling the ground material. Mainly used in industrial plants, shopping malls and parking lots.
Self leveling mortar is toward the formula is simple, excellent performance, stable quality direction, then to achieve this goal must first solve the two main problems of self leveling mortar application: one is the inevitable cracking problem; two is the problem of early strength. With the continuous development of self leveling cement, these problems are solved one by one, with the needs of market development,thick layer self-leveling cementMortar has become a trend and quickly spread.
Thick layer self leveling cement mortar construction thickness between 5mm ~ 50mm. It is composed of cement-based or gypsum-based cementitious materials, fine aggregate, fillers and additives, and water (or emulsion) after mixing with the flow properties of automatic leveling or a little paving can be leveling ground materials. Generally used for ground leveling and ground heating system. For residential building ground, the traditional leveling method is the field mixing cement mortar paving leveling, especially the rough room ground, its main disadvantages are:
(1) The construction mortar is thick and heavy, which brings a large load to the structure, especially for high-rise buildings, the increase in weight will directly affect the safety of the structure and the service life of the building;
(2) mixing mortar on site, the dust is serious, which will cause some pollution to the environment, and the labor intensity of construction workers is also relatively large;
(3) the traditional mixing mortar ground leveling, the final ground flatness is often poor;
(4) For the ground heating system, whether it is electric heating or hot water/gas heating, the use of traditional mixed mortar to bury the heating system will cause the mortar to crack due to the too strong rigidity of the mortar, thermal expansion and cold contraction, and even the heating pipeline will be broken and run away, which will also cause the ground tiles to be hollowed and cracked, resulting in wood floor deformation and other problems.
Ground heating is the development trend, compared with ordinary radiator heating, floor heating has more advantages:
(1) Comfort, hygiene and health;
(2) save space, beautify the room;
(3) High efficiency and energy saving;
(4) good thermal stability;
(5) Long service life;
(6) in line with the human body heating habits.
Thick layer of self-leveling cement backfill in the lot of advantages is incomparable, I believe in the near future, thick layer of self-leveling cement mortar will be in the backfill project in the floor heating. Thick layer self-leveling mortar formula design, must be in line with the current standard of self-leveling mortar, on this basis, the control of sand-lime ratio in the appropriate range, reduce the probability of shrinkage, cracking; improve the early strength, ensure fast drying fast hard, control 28 days compressive strength of not less than 35MPa. Thick layer self leveling mortar is the ground leveling and ground heating system needs new materials, according to the development of the market to develop a suitable thick layer self leveling mortar, is the mortar enterprise to break through the shackles of the development of the industry, showing a new economic growth point of an opportunity. Expanding new application fields, developing new products and new technologies is the only way for enterprises to survive and develop.

Key words:

Self-leveling cement