NM CID GS-16 Practice Questions - New Mexico CID GS-16 Masonry Examination Exam

New masonry should generally not be acid-cleaned until the mortar has cured for at least:

2 to 4 hours About 7 days (often 7 to 14 days; high-strength Type S/M mortars are sometimes cleaned earlier per the cleaner manufacturer) 90 days, with no exceptions The day the wall is laid, while the mortar is still green

Correct Answer:

About 7 days (often 7 to 14 days; high-strength Type S/M mortars are sometimes cleaned earlier per the cleaner manufacturer)

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