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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Concrete Q & A: Ice Rink Slab Cracking
Publication: Concrete International
Appears on pages(s): 75-76
Abstract:We have a contract to build an ice skating rink. The rink slab will be 80 by 180 ft (24 by 55 m) and 5 in. (125 mm) thick. The project specification requires 4000 psi (28 MPa) concrete, and the drawings show No. 4 bars at 12 in. (300 mm) on center each direction for bottom reinforcing and “6x6x10 WWM” for top reinforcing. Coolant pipes (1 in. [25 mm] HDPE) are shown at slab mid-depth. No sawed joints are shown in the slab, but there is an expansion joint around the perimeter. With such a large slab and no contraction joints, won’t cracking be likely? What should we tell the Owner to expect? How can we minimize cracking?
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