Is this formula okay? Is it practicable to use it for M5 testing?

[Scott Kaplan]

M5 mortar formula:
425 cement 350 kg, Heavy Calcium Carbonate 50 kg, medium sand (quartz brick) 600 kg, Cellulose ether I kg, Redispersible Polymer powder 2 kg
Is this formula okay? Is it practicable to use it for M5 testing?

 

[Cassie]

Is this intensity too high? M5 should be the lowest intensity. It estimates that 200kg of cement will not be used.

 

[Allen]

This formula even can make M15 mortar.

 

[Ramon Doria]

90kg cement can make M5 mortar, using sand with better gradation can make M15.

 

[Roy]

Why don’t you have HPMC?

 

[Roy]

42.5 Cement 55kg
Bluestone powder 189kg
medium sand 751
red mud 5
Additives 175 grams

 

[Alex]

Did you use it for aerated bonding mortar? If it is an aerated bonding mortar, add some cellulose ether, and some Redispersible Polymer powder will pass the inspection.