Cementitious building materials such as concrete, mortar, and masonry tend to readily absorb water because of their pore and capillary structure.  To prevent damage due to moisture absorption, the material’s absorbency can be reduced by the application of a water repellent sealer. Silanes and siloxanes, the two most common types of water repellents, are both.. read more →

Moisture can do irreparable damage to gypsum building materials. To prevent this and to protect the set gypsum mortar against moisture, powder-form water-repellent agents are admixed to the dry-mix mortar. This requires manufacturers of standard powder-form water repellents to employ carrier or encapsulation materials as a way of converting the liquid active ingredients into a.. read more →

 idmmc8, Nürnberg, 22. Mar. 21: Splendid Classic Car Location Secured In our last Newsletter, we announced the 8th International Drymix Mortar Conference idmmc8, taking place as real event in Nürnberg, Germany on 22. March 2021. We had issued a Call for Papers then (please send us those contributions, dear supporters!). In the meantime, we managed.. read more →

Currently the most widely used RDP are EVA and Veova. The technology is mature and the application effect is good. In recent years vinyl acetate acrylic acid system has emerged as the focus of foreign competitive research and development, but it has not been widely used due to its immature technology, but its excellent comprehensive.. read more →

Characteristics of nature cellulose fiber (1)Fiber reinforcement and thickening effect The nature cellulose fiber has a three-dimensional network structure with obvious cross-linking effect, as shown in picture 4.4-2. This structure can effectively adhere to the liquid structure, such as water, latex paint, asphalt and other liquids with different consistency. Its thickening depends on the length.. read more →

1). Application in tile adhesive Based on test formula as follows- A. Portland cement (p·O, 42.5R): 37% B. Sand gradation: 61.2% C. Hydroxy propyl methyl cellulase: 0.3% D. Redispersible polymer powder: 1.5% E. cellulose fiber: 0.3% Adding cellulose fiber into different formulas of tile adhesive can significantly reduce the slide distance. That is to say cellulose fiber in ceramic tile adhesive does not reduce the workability,.. read more →

The function of the water reducing agent is to improve the working performance of freshly mixed mortar and the fluidity of the mortar without reducing the water consumption of the cement; while maintaining a certain working performance, reduce the amount of cement and increase the strength of the mortar, under the circumstances, reduce the amount of cement per.. read more →

Water reducing agent refers to an additive that can reduce the amount of water used for mixing under the condition that the consistency of the mortar is basically the same. Water-reducing agents are generally surfactants, and are divided into ordinary water-reducing agents, high-efficiency water-reducing agents, early strength water-reducing agents, retarding water-reducing agents, retarding high-efficiency water-reducing.. read more →

Insulation board supporting mortar The thermal insulation board supporting mortar is an important part of the external wall insulation, mainly the thermal insulation board adhesive and protective mortar. As a supporting material for the system, the components of the external insulation system must be regarded as a whole. Therefore, adhesives, insulation panels, protective mortars, fiber.. read more →