The purpose of this study is to clarify the carbonation progress precast concrete get knowledge for suggestion evaluation and prediction method carbonation. measured data compressive strength depth core specimens sampled from 495 actual buildings were analyzed. As a result analysis, indoor side showed higher rate coefficient than outdoor both sides cast-in-place concrete.

The Minnesota Department of Transportation (Mn/DOT) Precast Slab Span System was initially designed by Mn/DOT with input from University of Minnesota researchers and local fabricators. The bridge system consisted of a series of precast, prestressed concrete inverted tee bridge elements which also served as stay-in-place formwork for the cast-in-place portion of the deck placed in the field. One...