An anti-cracking mortar formula and ask for advice

[Ankur]

White sand 600
Cement 350
Heavy Calcium Carbonate 50
Thixotropic lubricant 2
Redispersible Polymer powder 10
Calcium Formate 5
Pp fiber 3
Hydroxyethyl Methyl Cellulose 5

 

[anna]

You should avoid adding too many types of addictive, and there is no problem with on-site construction.

 

[Alex]

Why put so much calcium formate in anti-cracking mortar?

 

[Luis]

Replace pp fiber with 1 kg, then match it with 2 kg of wood fiber; adding calcium formate needs to make more sense. Also, it can add more in winter.

 

[Scott Kaplan]

Will there be less Heavy Calcium Carbonate,generally need 100 kg, and calcium formate is unnecessary.

 

[Cassie]

I will share a formula:
Cement 400
Sand 600
Plastering Redispersible Polymer powder 10
Cellulose 2
Short fiber 0.5
wood fiber 1

 

[Ramon Doria]

The PP fiber content is too high; can it be dispersed well? Thixotropic agent and cellulose are considered to be replaced by one; calcium formate needs to add more in winter