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Farm Building and Infrastructure
Buildings & Infrastructure
Cracks In New Concrete
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<blockquote data-quote="Forever Fendt" data-source="post: 4042894" data-attributes="member: 1163"><p>Plastic shrinkage cracks appear very quickly ,should be no deeper than 3mm not nice to look at but sometimes unavoidable the surface has dried out quicker than the concrete lower down in the slab, Poly fibres in the mix helps reduce this and a blended cement would help ,warm days with a bit of breeze are the worst it can happen on indoor slabs to if there is a doorway allowing a breeze to blow over the slab but these are not seen as power floating will rub some fat from the top into the cracks, best thing to do is finish the concrete and pull some dpm over it a water this to slow the hydration process down and it could be sprayed with a sealer as soon as the concrete is finished</p></blockquote><p></p>
[QUOTE="Forever Fendt, post: 4042894, member: 1163"] Plastic shrinkage cracks appear very quickly ,should be no deeper than 3mm not nice to look at but sometimes unavoidable the surface has dried out quicker than the concrete lower down in the slab, Poly fibres in the mix helps reduce this and a blended cement would help ,warm days with a bit of breeze are the worst it can happen on indoor slabs to if there is a doorway allowing a breeze to blow over the slab but these are not seen as power floating will rub some fat from the top into the cracks, best thing to do is finish the concrete and pull some dpm over it a water this to slow the hydration process down and it could be sprayed with a sealer as soon as the concrete is finished [/QUOTE]
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Cracks In New Concrete
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