According to the building exterior wall waterproof construction specification, the gap between the door and window frame and the wall is filled with polymer cement waterproof mortar. The gap is about 20mm high and as wide as the window frame. Workers use filling guns to fill in the joints. After...
Our company supplies the materials. However, the polymer cement waterproof mortar we sent to the construction site reacted hollow in the sun corners of some floors. I saw that the waterproof mortar was as crisp as biscuits but not on other floors. I have no idea what’s wrong.
Here is the...
42.5 cement:310
40-70mesh sand: make up the remaining weight
0--140mesh sand:240
flyash:80
cellulose ether:7.5
viscosity:3
starch ether:1
wood fiber:2
Redispersible Polymer powder:15
antifoaming agent:2
moisture repellent:2-4
water reducing agent: based on the experiment test
PP fiber:2
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