Method for improving workability of fresh fiber containing cement mortar and concrete

摘要

Fiber-containing cement mortar and concrete are improved by adding a salt of a &bgr;-naphthalenesulfonic acid-formaldehyde high condensate when the ingredients of the fiber-containing cement mortar or concrete are mixed in order to improve the workability of the fresh fiber- containing cement mortar or concrete whereby the physical properties of the resulting hardened cement mortar or concrete are improved.