Description:

Dry-mixed mortar is also known as dry mortar powder, dry mix mortar, dry mix powder, is widely used in construction and decoration engineering, dry mortar is in advance according to a certain strength requirements, sand, cement, fly ash, high-performance additives and other materials in accordance with a certain proportion of the new material, relative to the mortar mixed on site, has many advantages.

High-performance additives include our cellulose ethers (HPMC, MHEC) and redispersing emulsion powders (RDP/VAE). Our HPMC, HEMC, RDP products are fully capable of ensuring dry mortar construction, even at different ambient temperatures.

The role of HPMC, HEMC and RDP in dry mortar:

The role of cellulose ether (HPMC, HEMC) in dry mortar:

Thickening effect: The molecular chain of cellulose ether is long, which can form a three-dimensional network structure in water, thereby improving the viscosity of mortar. This makes the mortar more convenient in the construction, and can effectively prevent water evaporation, improve the working performance of the mortar.

Water retention: cellulose ether has excellent water retention performance, which can effectively delay the setting time of mortar. This makes the mortar in the construction is not easy to appear dry shrinkage cracks, improve the durability of mortar.

Suspension: cellulose ether has a good suspension effect, which can effectively prevent the aggregate in the mortar from sinking. This makes the mortar in the process of use is not easy to appear segregation phenomenon, to maintain the uniformity of the mortar.

Bonding effect: cellulose ether has good bonding effect, which can improve the bonding force between mortar and base. This makes the mortar not easy to fall off during the construction process and improves the adhesion of the mortar.

Film formation: The film formed by cellulose ether has good toughness and durability, which can improve the waterproof performance and durability of mortar.

The role of redispersible emulsion powder (RDP) in dry powder mortar:

Improve the bending strength and bending strength of mortar

The polymer film formed by dispersible emulsion powder has good flexibility. The film is formed on the gap and surface of cement mortar particles to form a flexible connection. Heavy and brittle cement mortar becomes elastic.

Improve the bonding strength and cohesion of mortar

As an organic binder, the dispersible emulsion powder can form a film with high tensile strength and bonding strength on different substrates. It plays a very important role in the adhesion between mortar and organic materials (EPS, extruded plastic foam board) and smooth surface substrates. The film-forming polymer rubber powder is distributed in the whole mortar system as a reinforcing material to increase the cohesion of the mortar.

Improve the impact resistance, durability and wear resistance of mortar

The cavity of the mortar is filled with rubber powder particles, and the denseness of the mortar is increased, and the wear resistance is improved. Under the action of external forces will produce relaxation without being destroyed. The polymer film can be permanently present in the mortar system.

Improve the mortar's weatherability, freeze-thaw resistance, and prevent mortar cracking

The redispersible emulsion powder is a thermoplastic resin with good flexibility, which can make the mortar cope with changes in the external cold and hot environment and effectively prevent the mortar from cracking due to changes in temperature difference.

Improve the water repellency of mortar and reduce water absorption

The redispersible emulsion powder forms a film in the mortar cavity and surface, and the polymer film will not disperse twice after encountering water, preventing the intrusion of water and improving the impermeability. Special redispersible emulsion powder with hydrophobic effect has better hydrophobic effect.

Improve the workability of mortar construction &

There is lubrication effect between the polymer rubber powder particles, so that the mortar components can flow independently, and the rubber powder has an induction effect on the air, giving the compressibility of the mortar and improving the construction workability of the mortar.

HPMC, MHEC and RDP are among the largest application areas for dry mortar, and we have developed products of different grades and properties to meet all customer needs. We can also offer custom formulations that can provide you with the most suitable raw materials and products for your specific local requirements.