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Re: OT Pouring Concrete
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Posted by RAB on December 12, 2005 at 12:50:45 from (195.93.21.101):
In Reply to: Re: OT Pouring Concrete posted by Galen on December 12, 2005 at 10:36:31:
Make that 25% strength in 24 hours at around 20 degrees Celsius. Concrete will gain probably 75-85% strength at 28 days but may well go on curing for years, depending on moisture, among others.
Durability is the main requirement here, so more cementitious material is required for that, than the compressive strength you require. Once you achieve about 5 Newtons per square millimetre, the concrete will resist mild frost attack, so if you lay it with warm aggregate, water and cement, lay a thick section with it sheeted and insulated (straw), on a non frosted base, you should be alright. Once it starts setting the reaction is exothermic, so it will warm itself more.
Regards, RAB
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