noun
superplasticizer; high-performance water-reducing agent
Technical term in concrete engineering; a chemical admixture that greatly improves workability without adding extra water.
高性能減水剤を添加すると、コンクリートの流動性が大幅に向上する。
Adding a superplasticizer greatly improves the fluidity of concrete.
Compound of 高性能 (high performance) + 減水剤 (water-reducing agent).