· Never do any refractory job under pressure.
· Never force your refractory workman to complete the job within specified time.
· Always provide enough time for any refractory work.
· Provide enough curing. So allocate enough time for curing.
· Keep you refractory service engineer near by for trouble shooting purpose.
· Keep ready all required materials, personnel etc., before starting any work.
· Allow no personnel without personnel protective element as safety is the top priority.
· Remove any coatings/any objects having tendency to fall from the refractory work area before starting the work.
Air drying of refractory
Now myself going to tell you one of the main work which was ignored by most of the personnel.
Yes, that was drying of refractory work/castable work under ambient air.
Most of the personnel never follow this procedure due to work pressure and they start heat up directly after water curing of the refractory. This is a wrong procedure. You wont get enough refractory life.
Generally as per thumb rule, any refractory/castable work must be allowed for air drying at ambient temperature for 12 to 24 hrs after completion of work curing.
You must follow strictly as per refractory service engineer recommendations. Depending upon the refractory used, the drying time varies.
So plan your work accordingly so that there must be enough time for air drying of refractory after water curing.
This procedure increases the refractory life.
