Refractory Engineer Interview Questions and Answers for Freshers

Various types of binders, additives, and retarders are used in refractories for different purposes.

• Binders like clay, cement, and colloidal silica are used to hold refractory materials together.

• Additives like plasticizers, deflocculants, and antioxidants are used to improve workability and performance.

• Retarders like borax and boric acid are used to slow down the setting time of refractory mixes.

• Examples include using colloidal silica as a binder in high temperature applicatio...read more