Browse Forums General Discussion 1 Jul 14, 2015 6:49 am What is the best way to cure concrete slabs when they are being constructed during winter climates Re: Concrete Curing 2Jul 14, 2015 8:26 am Chris Piechocki What is the best way to cure concrete slabs when they are being constructed during winter climates If your have the choice from my study of that exact topic I would say leaving form work in place for minimum of 7 days covered with builders plastic. Re: Concrete Curing 3Jul 19, 2015 7:32 pm We just poured last Thursday. Will be leaving it for a little over a week before we mark out our ICF wall positions, and chemset in internal wall starter bars. By the time we load up the slab, it will have cured for around 4 weeks. I asked the concreter about curing in Melbourne in the middle of winter. They did add a small amount of accelerant to the 33 cubic metre mix as it would take hours for the pour to stiffen up for bull floating, troweling & using the helicopter. Otherwise, they don't do terribly much different provided the concrete pour is suited to the temperature range. I saw the difference with the accelerator when they were a little short on the concrete and ordered a small amount. This was barrowed in but the accelerant wasn't used. They had to wait quite a while for it to firm up. Eventually everything was smoothed over and over and over to a really nice, flat finish, using the laser level at multiple points throughout the process. After they finished, it drizzled, giving the slab a nice shine. No ill effects from the rain after it dried. Just waiting now. To my understanding early saw cuts are to control shrinkage cracks, so doing them now would be pointless. Control joints may reduce ugly cracking during periods of soil… 3 9831 Hi all I need a guidance on how far I need to space expansion joints in the concrete driveway and its type (keyway/foam.) Contraction joints are at 3m max for a 125 slab. Thanks 0 10929 |