Can steel fiber reinforced concrete be pumped?

Yes, but expect a 1 to 3 inch slump loss through the hose depending on the steel fiber dose rate, ambient temperatures and hose length. A mid-range water reducing agent (MRWR) is commonly used to enchance workability and ease of flow through pump lines. High-range water reducers (HRWR) may be required in some cases. Typically, a 4 to in. Diameter hose is required.