Ultrasonic evaluation of mechanical properties of concretes produced with high early strength cement

• Ultrasonic tests have been widely applied to characterization of concrete.
• Aggregate size and proportion of materials were variables in this study.
• Elastic modulus of concretes is evaluated through ultrasonic tests.
• A good correlation between elastic modulus and compressive strength was obtained.
• Significant increase in elastic modulus occurred in the first 24 h.

This paper evaluates the use of ultrasonic tests for the characterization of mechanical properties of concretes produced with high early strength cement. Aggregate size and proportion of materials were the variables analyzed. Ultrasonic tests were performed from early hours up to 28 days after their production and a very good correlation between dynamic elastic modulus and compressive strength was achieved. The results also show the elastic modulus and compressive strength of the concrete produced with high early strength cement significantly increased in the first 24 h.

A very good correlation between dynamic elastic modulus and compressive strength was achieved. Additionally, results showed that significant increase in elastic modulus and compressive strength occurs in the first 24 h for concrete produced with high early strength cement.Figure optionsDownload as PowerPoint slide