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IBC 06/09-Cinder block

IBC 06/09-Cinder block

IBC 06/09-Cinder block

(OP)
Does anyone know if IBC addresses the use of cinder block? I couldn't find a reference in IBC or even ACI 530. I have an existing construction where, once they did some demo for new additions, it was realized that the foundation wall is actually cinder block rather then poured concrete as was shown on the existing structural drawings. Its not even grouted. Our design drawings indicate doweling into the (now absent) concrete foundation wall at some locations but I am not sure if we should/can do the same with cinder block

RE: IBC 06/09-Cinder block

There term "Cinder block" is a casual term used to describe some (not many) masonry units that were made in the past from cinders (a by-product of burning coal) and are highly variable in quality and localized to some areas of the U.S. Volcanic cinder are an exception and they have been/are used in many quality structural and architectural block.

Cinder block, as a by-product, and if still available, may meet the CMU ASTM C90 (Specifications for Load Bearing Masonry Units) and the class/category would depend on the materials properties determined by ASTM C140. They may also be non-Load Bearing.

Dick

Engineer and international traveler interested in construction techniques, problems and proper design.

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