What materials should be added to plastering mortar to increase its strength within 24 hours?

R

Roy

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What materials should be added to the plastering mortar to increase its strength within 24 hours? Redispersible polymer powder 6kg, or cellulose ether 2kg?
 
Add appropriate amount of ash calcium powder to the plastering mortar can improve surface strength.
 
Roy said:
What materials should be added to the plastering mortar to increase its strength within 24 hours? Redispersible polymer powder 6kg, or cellulose ether 2kg?
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Is this because you can't get up to strength? Does your formula have less cement? Or is the temperature low? Or is it just not strong enough under normal circumstances? You can choose from several methods: 1. Increase the amount of cellulose ether pure product 2.5-3; 2. Increase the amount of cement; 3. Add about 2 kg of polyvinyl alcohol; 4. Increase the mesh size of the filler sand appropriately.
 
Add appropriate amount of ash calcium powder to the plastering mortar can improve surface strength.
 
Add some early strength agent, or partially replace some early strength cement. 10kg aluminum sulfate is ok.
 
Cassie said:
Is this because you can't get up to strength? Does your formula have less cement? Or is the temperature low? Or is it just not strong enough under normal circumstances? You can choose from several methods: 1. Increase the amount of cellulose ether pure product 2.5-3; 2. Increase the amount of cement; 3. Add about 2 kg of polyvinyl alcohol; 4. Increase the mesh size of the filler sand appropriately.
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po425 cement 350, 70-100 sand 650, Redispersible polymer powder 6, cellulose ether 2, wood fiber 1.5, starch ether 0.4, 9 mm short fiber 1.5
 
Roy said:
po425 cement 350, 70-100 sand 650, Redispersible polymer powder 6, cellulose ether 2, wood fiber 1.5, starch ether 0.4, 9 mm short fiber 1.5
Click to expand...
The amount of cement does not need to be changed. Get rid of starch ether. Try my method above.
 
Adding water-reducing agent and reducing the amount of water can maintain the original construction performance
 
Starch ether increases construction performance and resistance to sagging. If the strength is acceptable after 24 hours, just remove the wood fiber during autumn construction.
 
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