Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 176
is no fire that can disintegrate good concrete. Ifthe concrete slab forming our fireproof floor were heated to the highest temperaturepossible during a fire, it would still retain its hardness and perform its function ofsupporting and strengthening the ribbed bar by adhering to and locking itself… … Fig. I. VIEW OF FLOOR WITH HEAVY BARS FRAMED TO GIRDERSThis plan of connecting bars adapted to long spans and large bars
Building materials
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