The task group was requested to further clarify the method for verifying perpendicularity of capped specimens, as described in Note 12. It was felt that the description of the proper method for using the combination square could be confusing to the reader. This ballot attempts to make it easier to understand how to utilize this method, when verifying perpendicularity and includes a new Fig. 2 which shows an example of the notched square that is discussed in the note. In addition, the term combination square has been changed to carpenters square as this type of square has proven to be practical and sufficiently accurate for this task.
Keywordscap; capping; capping materials; capping plate; casting plate; compressive strength; gypsum cement; sulfur;