Cement-based waterproof slurry

For building materials, such as concrete, masonry and natural stone, liquid or gaseous Water is the most devastating climate element. 

Traditional sealing and waterproofing system (For example, according to DI〖WTBZ〗N 18195)(Including indoor and outdoor applications)Mainly uses asphalt materials, plastic waterproof foils and metal tapes. Various types of materials can be used to seal and protect buildings and their structural components from moisture and water. Today such products are based on reactive resins such as epoxy or polyurethane, dispersants(Paintable waterproofing membrane)and inorganic adhesive Cementing agents, such as cement, are commonly known as waterproofing membranes or sealing mud.

Cement-based waterproofing membrane has been successfully used in Europe40Yu Nian. Buildings to be protected are often exposed to periodic or chronic moisture surface water , seepage water), low hydrostatic pressure(Soil moisture), or in environments combined with higher engineering hydrostatic pressures.

Cement membrane( Muds) are used for waterproofing wet rooms and water tanks due to their excellent Weather resistant, so also used for exterior surface protection. Other typical applications include basement walls, swimming pool walls, as well as walls and floors in bathrooms, balconies and decks as a base waterproofing layer for facing tiles. The main advantage of cement-based waterproofing membranes is their excellent water resistance(Even Permanent exposure to water), weather resistance, good scrub resistance, load carrying capacity and much higher water vapor permeability than most other systems, among others. 

Cement-based anti-cement grout is easy to use, non-toxic, Provides a fully bonded, seam-free, complete surface and can be easily applied to substrates with complex surface shapes. In contrast to other systems, cement proofing grouts can even be used on wet inorganic surfaces. Their physical properties are also less dependent on temperature than asphalt materials. To date, there are no standards for these alternative sealing products, but the Mortar Association's national guidelines are widely recognized by the construction industry. 

Simple, unmodified by polymer Cement-based grouts are still used for surface protection, but they are not suitable for water sealing under hydrostatic pressure. To improve the low adhesion, low water resistance and particularly low deformability of these unmodified systems, polymer emulsions are added on site or redispersible powders are added to the dry mix mortar. Special additives include water retaining agents, thickeners and rheology additives. 

 Today, traditional inorganic anti-cement slurries have high cement content and relatively low polymers (Redispersible powder)Content-based, polymer-modified, prepackaged dry-mix mortars. They are used on inorganic substrates that are dimensionally stable, strong, and solid and will not undergo dimensional changes such as cracking, movement, or shrinkage.20Century70Flexible anti-cement slurry appeared in Europe in the late 1970s. This product can fill small cracks in the substrate to a large extent(less than1mm Left and right) ">. The flexibility of this product mainly depends on the ratio of polymer to cement and the flexibility of the polymer itself. Flexible and highly flexible anti-cement grouts can be used on substrates where shrinkage, vibration, movement, stress and crack formation are present, as well as on difficult-to-reach substrates. Coated on substrates such as wooden boards, steel plates, air-entrained lightweight materials and plaster. Due to their high polymer content(up to the mass of the entire ingredient( span>40%), so they have high impermeability and resistance to chloride and sulfuric acid Corrosion resistance to radical ions, carbon dioxide or other corrosive substances. In Central Europe, flexible cement waterproofing sealing mud is a two-component(Double package)A typical example of a system consisting of pre-packaged dry mix mortar and liquid additives. However, even among these high-polymer products, there is a strong trend towards single-pack systems of polymer-modified dry-mix mortars.  </p