A question about opening hours 1. Opening time refers to the usable time of mortar (the period from mortar production to the time when mortar begins to lose workability). 2. The construction performance and strength of mortar will not change when used during the opening hours. The workability of mortar after its opening time deteriorates.
The main properties of cellulose ether in gypsum mortar are as follows: Reduction of agglomeration without clumping; fine and smooth surface; thickening and water retention; excellent anti-sagging; constructability. Difference in water retention of cellulose ether in gypsum mortar: Matchability of cellulose ether water retention and gypsum mortar formulations; The effects caused by viscosity, addition amount,
Coloured Tile Adhesive is a widely used decorative material for fixing and beautifying coloured tiles in home and industrial decoration. However, most people don't know whether it is colour paste or colour essence that is added to the colour tile adhesive. Landcel will focus on the composition and process of colour tile adhesive in this
Problems that tend to arise in the production and use of mortar Problems arising from segregation of mixed mortar. 1) In the bulk mobile silo, the part of the mortar that is just discharged at the beginning and the part that is discharged at the end of the bulk mobile silo is prone to segregation.
Floor mortar common problems and treatment 1) Cracking: Due to the change of temperature difference (thermal expansion and contraction), the ground is destroyed and cracks appear. Or due to the grass-roots level is very wet. In the process of mortar solidification, the ground mortar and part of the water chemical reaction. The rest of the
Plastering mortar common quality problems and treatment methods 1) Empty drum: the main reasons are: ① Unclean grass-roots treatment. Such as dust and loose material attached to the surface of the grass-roots level, mold release agent and oil stains. These sundries are not thoroughly removed will affect the bond between the plaster layer and the
How can mortar problems be solved? Ⅰ. What causes mortar water secretion? 1 The use of poor quality fly ash; 2 Low water retention of mortar; and 3 Unreasonable sand grading Ⅱ. How to deal with mortar water secretion? 1 Avoid the use of poor quality fly ash; 2 Improve the water retention rate of
1. Precautions for the use of retarder In the use of retarder, should be based on different construction temperatures, through the test to find the best mixing amount of retarder. Then according to the construction requirements of the initial solidification time. In the range of the best dosage with the corresponding reasonable dosage. In order
1.Definition of retarder Retarder is an additive that reduces the hydration rate and heat of hydration of gypsum and prolongs the setting time. 2.Classification of retarder At present, there are mainly three kinds of gypsum retarders in common use. ① organic acids and their soluble salts: hydroxycarboxylic acid and its salt, citric acid, tartaric acid
Landcel tell you about"Causes of blackening and cracking in gypsum-based self-leveling mortars". Gypsum-based self-leveling mortar surface floating black 1. Influencing factor: the amount of water. The more water is added, the easier it is for the mortar to secrete water, and the easier it is for the black residue to float on the surface. 2.