Concrete Accelerators and Retarders

Product name	Description	Type ASTM C494	Setting Time
Admix RD	Retarder	B	At Least 1 hr later from control
Admix AX	Accelerator	C	At least 1 hr earlier from control
Admix RD Plus	Retarder & reducer	D	At Least 1 hr later from control
Admix AX Plus	Accelerator & reducer	E	At least 1 hr earlier from control

Product name

Description

Type ASTM C494

Setting Time

Admix RD

Retarder

At Least 1 hr later from control

Admix AX

Accelerator

At least 1 hr earlier from control

Admix RD Plus

Retarder & reducer

At Least 1 hr later from control

Admix AX Plus

Accelerator & reducer

At least 1 hr earlier from control