Tar bonded dolomite bricks__________________?
Correct answer: D. All A., B. and C.
- A. Are stored under controlled temperature & humidity to avoid hydration
- B. Are used in outer lining of L.D. converters
- C. Have poorer hydration resistance than pitch bonded bricks
- D. All A., B. and C.
Explanation
Tar-bonded dolomite bricks must be protected from moisture because dolomite can hydrate, and they are commonly used in the outer lining of L.D. converters. Their hydration resistance is poorer than that of pitch-bonded bricks, so all three statements apply.
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