Transcription of CIP 3 - Crazing Concrete Surfaces
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CIP 3 - Crazing Concrete Surfaces
CIP 3 - Crazing Concrete SurfacesWHY Do Concrete Surfaces Craze?WHAT is Crazing ? Crazing is the development of a network of fine ran-dom cracks or fissures on the surface of Concrete ormortar caused by shrinkage of the surface layer. Thesecracks are rarely more than 1/8 inch [3 mm] deep andare more noticeable on steel-troweled Surfaces . Theirregular hexagonal areas enclosed by the cracks aretypically no more than 11/2 inch [40 mm] across andmay be as small as 1/2 or 3/8 inch [12 or 20 mm] inunusual instances. Generally, craze cracks develop atan early age and are apparent the day after placementor at least by the end of the first week. Often they arenot readily visible until the surface has been wettedand it is beginning to dry cracks are sometimes referred to as shallowmap or pattern cracking.
CIP 3 - Crazing Concrete Surfaces WHY Do Concrete Surfaces Craze? WHAT is Crazing? Crazing is the development of a network of fine ran-dom cracks or fissures on the surface of concrete or
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