LIGNIN-BASED CONCRETE ADMIXTURE

摘要

PROBLEM TO BE SOLVED: To provide a concrete admixture which has no limitation about the kinds of lignin to be used as a raw material and has higher performances than a conventional lignosulfonic acid-based concrete admixture. SOLUTION: The concrete admixture essentially comprises a lignin derivative produced by the reaction of lignin and a hydrophilic compound. COPYRIGHT: (C)2011,JPO&INPIT