slag (GGBF) in slab-on-grade concrete
slag (GGBF) in slab-on-grade concrete
(OP)
Does anyone have experience with using blast furnace slag in a mix design for a slab-on-grade?
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slag (GGBF) in slab-on-grade concrete
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RE: slag (GGBF) in slab-on-grade concrete
Are there any particular properties you're trying to obtain for your slab-on-ground by introducing blast-furnace slag to the mix?
Blast-furnace slag blended cement concrete tends to have better pumpability and can be used in mass concrete applications to reduce the peak temperature rise and tendency to crack due to heat development.
Suggest you discuss with your ready-mix or blast-furnace slag supplier. They are the real experts.
RE: slag (GGBF) in slab-on-grade concrete
RE: slag (GGBF) in slab-on-grade concrete
RE: slag (GGBF) in slab-on-grade concrete
My clients web site (they are British company that has one plant in Florida) is
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They enumerate the benefits of slag. They also have great other documents on slag.
Regards,
Lutfi
RE: slag (GGBF) in slab-on-grade concrete
My experience is that contractors want to get back on the slab as soon as possible. Some years ago we were given the task of assessing data on an ultra-high strength concrete which would enable the slab to be trafficked within 24 hours. The heat generation was very high and needed to be controlled with lots and lots of reinforcement. It was used on commercial projects but I've no further information on the process as I moved jobs!
I have heard anecdotes that slag cement is more prone to plastic cracking but this probably is not a problem for a power floated slab??
Lufti's link is good. I'd say that Civil and Marine are probably the clear market leader here in the UK.