Concrete slab pour 1B was supposed to be routine, occurring early in the construction of a parking garage in the Midwest. However, low compressive strength issues led to lengthy and costly project delays, as well as some interesting theories about the causes.
Experimental investigation of ultra-early-strength cement-based
03 31 00 Structural Concrete Archives - Construction Specifier
Investigation on mechanical properties deterioration of concrete
Large Deflections in Concrete Slab Without Cracking - Structural
Materials, Free Full-Text
Experimental investigation of ultra-early-strength cement-based
Solved Strength of concrete: The compressive strength, in
Colin Rueb, S.E., P.E. - Raths, Raths, & Johnson, Inc.
The curious case of pour 1B: Investigation of concrete strength