I'm doing to do a monolithic pour on my garage addition and will need about 13 yards of concrete which will require two loads. Can I have my first truck deliver 3000 psi which will fill the footing and lower wall areas and then have my second truck deliver 4000 psi for the slab? The second pour would be put on top of the first pour right away (one truck would be right behind the other).
Monolithic Pour
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My first thought too. :laughing:
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make it 4 :laughing: then i thought - hhhmmmmmmmmmmmmm, he may be onto something :huh: so here's my suggestion - order up the 3,000 @ 7" slump w/wtr reducer, retarder, 2% calcium, & just a slight taste of super-p,,, that way you'll not waste a lot of time pulling the mud for the footing OR vibrating, it'll delay the set so there won't be any cold jnt/delamination, & less footing labor but you'll still gain hi early strength 
the 2nd load can be 4,000 @ 3" or 4" slump,,, the only caution i can forsee is not using vertical supporting bars to prevent the top from sinking down into the bottom :furious:
IF you're not an experienced conc guy, you might consider you ARE already a cheapskate out-of-the-box thinker,,, pay the addl $$$ & do it like a pro - that also means bringing coolers & your favorite adult beverages :thumbup:
in theory, there's no difference 'tween theory & practice,,, in practice, there is ! ! !
in
the 2nd load can be 4,000 @ 3" or 4" slump,,, the only caution i can forsee is not using vertical supporting bars to prevent the top from sinking down into the bottom :furious:
IF you're not an experienced conc guy, you might consider you ARE already a cheapskate out-of-the-box thinker,,, pay the addl $$$ & do it like a pro - that also means bringing coolers & your favorite adult beverages :thumbup:
in theory, there's no difference 'tween theory & practice,,, in practice, there is ! ! !
in
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