On the performance requirements of superplasticizer used in high performance concrete, the error is ()
A. Low water reduction rate
B. Small slump loss
C. It can obviously improve the durability of concrete
D. It has good compatibility with cement
Answer:A
On the performance requirements of superplasticizer used in high performance concrete, the error is ()
A. Low water reduction rate B. Small slump loss C. It can obviously improve the durability of concrete D. It has good compatibility with cement