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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, dissemination, and adoption of its 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: Joint Free Slabs On Grade:An Innovative Approach: Working With Concrete Instead of Wrestling With It
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Abstract:The Crack Induced Joint Free Slab is the traditional raft slab with integral edge and internal footings, extended to potentially limitless areas with the installation of a crack inducer grid made up of set lengths of extruded conduit and injection moulded junction / reinforcement chair units. The concrete setting and drying shrinkage stress is dissipated throughout the deliberately restrained slab by means of the regular closely spaced crack induction grid laid on the vapour barrier (where required) on the subgrade. The crack inducers are in effect .saw cuts. installed from the underside of the slab, .cut in. as the concrete is placed. The method generally eliminates the need for all of the traditional isolation and formed and sawn control joints, together with their associated treatment, sealants, and maintenance.
Concrete Institute of Australia, International Partner Access.
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