How to control the properties of semi-aqueous plastering gypsum? In general, the hemihydrate gypsum produced is often a mixture of hemihydrate gypsum and type III anhydrite. Type III anhydrous gypsum, also known as dehydrated hemihydrate gypsum, has the same crystal phase structure as the original hemihydrate gypsum. Type III anhydrous gypsum will quickly hydrate into
What are the factors affecting the performance of plastering gypsum? (1) The most suitable amount of hemihydrate gypsum. (2) The basic components of plaster of paris. (3) It is most suitable for the grinding and firing process of producing this plaster of paris. (4) The quality and quantity of the additions. (5) Stirring type, adjustment
Bonding mortar is a cement-based prefabricated dry mix. Industrial product designed for bonding insulation boards to base walls. Has excellent adhesion. Good enhancement of sagging resistance, water retention, water resistance, aging resistance and handling. The construction is simple and non-toxic pollution. It is used for the bonding of polystyrene board, rock wool board, extruded plastic
Hydroxyethyl cellulose (HEC) is a non-ionic cellulose ether made from natural polymer material cellulose through a series of chemical processes. It is an odorless, tasteless, non-toxic white powder or granule. It can be dissolved in cold water to form a transparent viscous solution. Dissolution is not affected by pH. It has thickening, binding, dispersing, emulsifying,
The setting time of concrete is mainly related to the setting time of cement, and the influence of aggregate is not great. Therefore, the effect of HPMC on the setting time of underwater non-dispersible concrete mixture can be studied through the setting time of mortar. Because the setting time of mortar is affected by water.
How long is the shelf life of tile adhesive? In a cool and dry environment, the shelf life of unopened tile adhesive is 1 year. Cemented tiles indicate that the active ingredients have begun to react and should be discarded. Tile adhesive mixing time? It should be stirred with a low-speed mixer (500r/min). Add the
4 Mortar hollowing problem 1. Constructive hollowing The roughness of the interface agent is insufficient or the plaster layer is loosened due to rubbing and pressing before the mortar is collected. Or the mortar itself has insufficient bonding strength. Cause peeling between the mortar layer and the interface agent layer. 2. Shrinkage empty drum The
The anti-cracking mortar process is to use some kind of stainless steel tool to press the anti-cracking mortar on the insulation board. Then spread the grid cloth to overlap. until the fiberglass cloth is completely hidden. It is a construction process with special mortar. It can prevent cracks on the wall surface due to the
In the paint and plastic industry, "heavy calcium" is calcite powder. It is the abbreviation of "heavy calcium carbonate". The main ingredient is heavy calcium carbonate. Ground calcium carbonate is also referred to as "heavy calcium". Usually used as a filler. Widely used in artificial floor tiles, rubber, plastics, paper, coatings, paints, inks, cables, construction
In the actual application process of the external walls internal insulation system. There are also some shortcomings that are widely criticized by everyone. For example: condensation (condensed water on the inner surface), mildew problems. Almost as soon as internal insulation is mentioned, everyone subconsciously thinks of the above two keywords. But is this problem really
