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

Why is masonry grout mixed to an 8 to 11 in. slump even though that would be unacceptable for structural concrete?

The extra water is needed so grout will flow into small cells and around bars; absorptive masonry then reduces the water-cement ratio in place Grout is not required to develop compressive strength, so extra water is harmless TMS 602 uses slump only as a temperature-control method The high slump replaces the need for cleanouts and vibration

Correct Answer:

The extra water is needed so grout will flow into small cells and around bars; absorptive masonry then reduces the water-cement ratio in place

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