Just figured out why my curb mix kept cracking in the Phoenix heat

I switched from a standard 4000 psi mix to a 3500 psi mix with a mid-range water reducer for a curb job last week. The lower strength mix actually handled the 110 degree heat way better, with zero plastic shrinkage cracks. Has anyone else found that a slightly weaker mix can be more forgiving in extreme weather?

4 comments

4 Comments

skyler21715d ago

Huh, I'd actually go with more air instead.

xenam8415d ago

Read an article last week that said too much air can actually dry things out and make them less effective. The author argued for a balanced approach instead of just adding more. They had some good points about how the extra volume doesn't always help with the main goal. It stuck with me because it went against what a lot of people usually say. Kinda changed my view on the whole thing lmao.

casey34215d ago

But what if the extra air just moves things around without fixing the core problem?

andrew_baker915d ago

Tried that extra air thing with my old car's AC. Just blew dust everywhere and made a weird whistling sound. Ended up having to clean the whole system anyway. Sometimes you gotta fix the leak, not just pump more air in.