Rapid Set® UltraFlow® 4000/8 — FAQs
fast setting, High-Strength, Multi-Purpose, Non-Shrink Grout
Q: Can Ultra Flow 4000/8 be pumped?
A: Yes, in tests conducted by ChemGrout Inc. Ultra Flow 4000/8 received the highest rating for pumpability of a cementious grout. Distances of up to 200 feet are no problem.
Q: What is the minimum thickness for placing Ultra Flow 4000/8?
A: Ultra flow 4000/8 is very fluid and will get into the smallest spaces, but a minimum of ½” thickness should be specified and installed.
Q: What is the maximum thickness for Ultra Flow 4000/8 grout?
A: Ultra Flow 4000/8 can easily be placed to a thickness of 4”. There is no limit on the thickness placed into a grout lug pocket. For thicker grouting applications consult with a CTS Cement Mfg. Rep.
Q: Can Ultra Flow 4000/8 be extended with aggregate?
A: Under certain conditions Ultra Flow 4000/8 can be extended with clean washed 3/8” pea gravel. The flow and placeability will be somewhat effected, consult with a CTS Cement rep. before proceeding with the installation.
Q: Does Ultra Flow 4000/8 need to be cured and if so, how?
A: Yes, Ultra Flow 4000/8 must be wet cured for at least 3 hours or until final set is reached. After form removal Ultra Flow 4000/8 should be coated with a performance grade curing compound.
Q: Do I need a bonding agent with Ultra flow 4000/8?
A: No, a bonding agent is not required when installing Ultra Flow 4000/8. The surface of the foundation needs to be roughened and all damaged or contaminated concrete and latients need to be removed. The surface needs to be clean and in an SSD ( saturated surface dry) condition before placing Ultra Flow.