ordinary portland cement

Also found in: Acronyms.

ordinary portland cement, Type I portland cement

A portland cement used for general construction which is produced without any of the special distinguishing qualities imparted to other types.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
The structural characteristics of ordinary Portland cement as well as ultrafine Portland cement produced utilizing bead mill were investigated using an X-ray diffractometer (Ultima III, Rigaku Inc., Japan).
Table 4 represents the oxide compositions of the ordinary Portland cement as well as chemically synthesized nanocement.
It offers ordinary Portland, sulphate resistant, quick setting, and low alkali ordinary Portland cements, as well as clinker.