The rheological additives used in cement-based tile adhesives and other systems are mainly cellulose ethers, which provide suitable consistence for construction, sag resistance of wall tiles, optimum water retention of cement, and control intervals and tile correction time. The thixotropic lubricant can be used in combination with cellulose ether thickeners to create a synergistic effect that improves the sag … Continue reading
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, … Continue reading
The consistency and anti-sagging performance of mortar are very important indicators. The mortar must be easy to apply, at the same time with the appropriate consistency and no sagging while applying as thick mortar. Same properties are required in tile adhesive, which can help to support heavy bricks perpendicular to the wall. The testing method of consistency- International standard EN 1015-3 fresh mortar test methods … Continue reading
External wall insulation and EIFS are used in the global field. The installation on the exterior wall of the building mainly save 40%-70% of the energy consumption of building heating and cooling. The polymer powder modified dry mortar is used to bond polystyrene sheets to the wall(bonding mortar). At the same time, in order to protect … Continue reading
Starch ethers, specifically starch ether varieties, are used in cement-based systems such as plastering, adhesives, and leveling layer to form functional surfaces both internally and externally. Plastering mortar is used to cover uneven parts of walls. They must have a strong and durable bond to the substrate. The surface of the mortar must become smooth and flat in order to … Continue reading
A. The rheology properties of starch ether in machine and spray mortar Starch ethers prevent sagging of mortar and enhance pumping properties. They are easy to distribute evenly in mortar because they are of low viscosity, can dissolve fast, change the rheology of the plaster and gave it thixotropy. This shows that when the external force … Continue reading
Hydroxypropyl Methyl Cellulose Ether (HPMC) are referred to as Methyl Cellulose ether (MC). MC is one of the most important additives in dry powder mortar which mainly plays the role of water retention and thickening. MC is a kind of powdered cellulose ether made of wood fiber or refined short cotton fiber as the main … Continue reading
A fiber is a cell which is a typical dead plant cell with two pointed ends, thick skin, and void in the middle. The fibers (cells) are characterized by being thin and long, with spindle-like ends, flexible, and have a certain binding force with each other after interweaving. The fiber cell is empty inside and surrounded by the cell wall which is composed … Continue reading
Viscosity There are different types of viscometers used to measure the viscosity of a cellulose ether solution. The widely adopted viscometers are: HoppIer falling ball viscometer, Haake rotation Rheometer and Brookfield rotation viscometer. The viscometer commonly used in China is NDJ series. The viscometers adopted by different cellulose ether manufacturers are different in the market. With the same solution, testing in different viscometers, … Continue reading
During the study of dry mixed mortar, more attention is paid on admixtures and fiber materials, while the roles of aggregate and filler are often ignored. The effect of reasonable combination of aggregates and fillers is often beyond the reach of admixtures. Reasonable gradation can save cost and improve the comprehensive performance of the product. Experiments show that the higher … Continue reading