HES conc. for bridge deck
HES conc. for bridge deck
(OP)
Anybody ever tried this? The HES would be high early strength concrete used to pour a new bridge slab.
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HES conc. for bridge deck
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RE: HES conc. for bridge deck
RE: HES conc. for bridge deck
PL girder structure.
RE: HES conc. for bridge deck
What strength do you need in 24 hrs vs. 28 days? In the end acceptance is up to the engineer. I find HE a little more difficult to work with and somewhat more expensive. I have have used normal mixes that were 1-2,000 psi higher than specified to get early strength. Ie if you need 3,000 lookat using 5,000. HE does have heat and cracking considerations. Not that it does not work, it works fine, just have to be more careful.
RE: HES conc. for bridge deck
I agree with the comments above, it's been done but is not generally worth the headache.
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RE: HES conc. for bridge deck
However there are a number of things to consider: On this project maturity meters are placed in the slab to determine its strength; the meters are calibrated based on actual cylinder breaks.
If you're interested call the DOT's Regional Materials Engineer or Regional Construction Engineer. The DOT Region is 11. Sorry but Eng-Tips froms on posting phone numbers.