Dry mixed mortar is a type of construction material that is used to bind together various components such as cement, sand, and other additives. It is commonly used in the construction of walls, floors, and other structures. Dry mixed mortar is a convenient and cost-effective solution for many construction projects.
The formulation of dry mixed mortar is a complex process that involves the selection of the right ingredients, the proper mixing of the components, and the correct application of the mortar. The formulation of dry mixed mortar begins with the selection of the appropriate ingredients. The most common ingredients used in dry mixed mortar are cement, sand, and other additives. The selection of these ingredients depends on the type of project and the desired properties of the mortar.
Formulation of Dry mixed Mortar as bellow:
1.Bonding mortar formulation
42.5 cement: 400kg
Sand: 600kg
emulsion powder: 8-10kg
Cellulose ether (150,000-200,000 CPS): 2kg
If the redispersible emulsion powder is replaced by resin powder, the added amount of 5kg can break the board
2 .Plastering mortar formulation
42.5 cement: 400kg
Sand: 600kg
Latex powder: 10-15kg
HPMC (150,000-200,000 sticks): 2kg
Wood fiber: 2kg
PP staple fiber: 1kg
3. Masonry/Plastering Mortar formulation
42.5 cement: 300kg
Sand: 700kg
HPMC100,000 sticky: 0.2-0.25kg
Add 200g of polymer rubber powder GT-508 to one ton of material to achieve 93% water retention
4. Self-leveling mortar formulation
42.5 cement: 500kg
Sand: 500kg
HPMC (300 stick): 1.5-2kg
Starch ether HPS: 0.5-1kg
HPMC (300 viscosity), low viscosity and high water retention type, ash content less than 5, water retention 95%+
5. Heavy gypsum mortar formulation
Gypsum powder (initial setting 6 minutes): 300kg
Water washing sand: 650kg
Talc powder: 50kg
Gypsum retarder: 0.8kg
HPMC8-100,000 sticky: 1.5kg
Thixotropic lubricant: 0.5kg
The operating time is 50-60 minutes, the water retention rate is 96%, and the national standard water retention rate is 75%
6. High-strength tile grout formulation
42.5 cement: 450kg
Expansion agent: 32kg
Quartz sand 20-60 mesh: 450kg
Washing sand 70-130 mesh: 100kg
Polyxiang acid alkali water agent: 2.5kg
HPMC (low viscosity): 0.5kg
Antifoaming agent: 1kg
Strictly control the amount of water added, 12-13%, more will affect the hardness
7. Polymer insulation mortar formulation
42.5 Cement: 400kg
Washing sand 60-120 mesh: 600kg
Latex powder: 12-15kg
HPMC: 2-3kg
Wood fiber: 2-3kg
Once the ingredients have been selected, they must be properly mixed. This is done by first combining the dry ingredients in a mixer. The ingredients are then mixed until they form a homogeneous mixture. The mixture is then poured into a container and left to set.
Once the mixture has set, it is ready to be applied to the surface. This is done by using a trowel or other tool to spread the mortar evenly over the surface. The mortar should be applied in thin layers and allowed to dry before the next layer is applied.
The final step in the formulation of dry mixed mortar is the curing process. This is done by allowing the mortar to dry completely before it is exposed to moisture. This helps to ensure that the mortar has the desired strength and durability.
The formulation of dry mixed mortar is an important part of any construction project. It is important to select the right ingredients, mix them correctly, and apply the mortar correctly in order to ensure that the project is successful. By following the steps outlined above, you can ensure that your project will be successful and that the mortar will last for years to come.