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Concreting a slab using Fck 25 Mpa ready-mix concrete, the important thing is to wet the slab well before and after concreting, as soon as the concrete begins the curing process the slab must be wetted for seven days, seven times a day depending on the weather. Contact: (11)96450-2944 Instagram: @paulemiliodias Visit our channel in the solar energy segment follow the link... • How does a Solar Energy system work?