Most dispatchers are quite valuable and will advocate the ideal mix. For a sizable slab like ours that will have occasional car or truck visitors, we purchased a three,five hundred-lb. blend with 5 p.c air entrainment. The air entrainment traps microscopic bubbles that aid concrete face up to freezing temperatures. https://hypebookmarking.com/story19949875/a-simple-key-for-concrete-construction-remediation-unveiled