Place of Origin : Beijing,China
Delivery Terms : By Sea
Delivery Time : 15days After Signing The Contract
Payment Terms : T/T, L/C
CSA expansive agent is similar to DENKA CSA 20# in some ways.Its raw material is calcium sulphoaluminate.With favorable price and high efficient expansive ratio, CSA expansive agent is becoming more and more popular in field of construction to improve the quality and shorten erection time
1. Dosage
High-efficiency CSA Expansive Agent Is Used As A Part Of Cement, Its Proportion To Ordinary Portland Cement Depends Upon The Intended Use And The Degree Of Restraint. The Proportion Of High-efficiency CSA Expansive Agent To Ordinary Cement Generally Used In China Is About 6~8%.
2. Mixing
High-efficiency CSA Expansive Agent And Ordinary Cement Must Be Thoroughly And Uniformly Mixed In A Mechanical Mixer With Aggregate And Water For A Slightly Longer Time Than Normal Concrete.
3. Curing
To Ensure The Proper Development Of The Ettringite Needle Crystals Which Are Important In Preventing Shrinkage Cracks Which Occur During Drying Period, It Is Recommended That Water Be Sprayed Or Membrane Curing Onto The Concrete Surface For Curing At Least 14 Days After The Concrete Is Cast.
4. Storage
High-efficiency CSA Expansive Agent Is More Sensitive To Water And Moisture Than Other Cementitious Material And Is Therefore Packed In Completely Waterproof Bags And Should Always Be Kept And Stored In A Dry Place.
