Analysis of the early-age cracking in concrete made from rapid hardening cement

This paper investigates the use of concrete containing ultra-rapid hardening cement for rapid repairs in confined spaces where the repaired element has to sustain dynamic loading within a short time after repair. The study focuses on the early-age strength development and structural integrity of the repaired element. The study is divided in two parts. The first part is devoted to the compressive and split cylinder strengths, and to the...