Abstract:
QUICK HARDENING CEMENTS ARE OF TWO GENERAL CLASSES, HIGH ALUMINA CEMENTS AND SPECIAL PORTLAND CEMENTS. HIGH ALUMINA CEMENTS ARE REPORTED TO BE RESISTANT TO ACID AND ALKALI WATERS. THE EARLY HIGH STRENGTHS OF HIGH ALUMINA CEMENTS HAVE BEEN ESTABLISHED AND THEY HAVE BEEN USED FOR CONSTRUCTION WORK WHERE HIGH EARLY STRENGTH IS IMPORTANT. HOWEVER, THE PRESENT HIGH COST OF HIGH ALUMINA CEMENT LIMITS ITS USE. ALTHOUGH THE COST IS HIGH, HIGH ALUMINA CEMENT HAS BEEN SUCCESSFULLY USED ON SPECIAL CONSTRUCTION.
Supplemental Notes:
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