on July 1st, 2011

This paper presents a laboratory experimental study on the effect of high strain rate on compressive behavior of plain and fiber-reinforce high-strength concrete (FRHSC) with similar strength of 80-90 MPa.

Steel fibers, polyethylene fibers, and a combination of these were used in the FRHSC.

A split Hopkinson pressure bar equipment was used to determine the concrete behavior at strain rates from about 30 to 300 s-1.

The ratio of the strength at high strain rates to that at static loading condition, namely dynamic increase factor (DIF), of the concretes was determined and compared with that recommended by CEB-FIP code.

Fracture patterns of the specimens at high strain rates are described and discussed as well.

Results indicate that the CEB-FIP equation is applicable to the plain high strength concrete, but overestimates the DIF of the FRHSC at strain rates beyond a transition strain rate of 30 s-1.

Based on the experimental results, a modified equation on DIF is proposed for the FRHSC.

Read More

The latest news

EIT News

A Hero with a Lifesaving Legacy  

Meet James Mackay, the Technology Manager at the Engineering Institute of Technology (EIT), also known as a hero. His journey is nothing short of inspiring, and it's about time the... Read more
EIT News

UAE Floods: Role of Engineers in Cloud Seeding and Climate

The recent downpour in Dubai has raised the question of whether cloud seeding or extreme weather was to blame and what engineering is involved in either scenario. The recent downpour... Read more
EIT News

3D Printing: Technology, Applications, and Future Prospects 

In this insightful blog, we investigate the transformative field of additive manufacturing.   The Engineering Institute of Technology’s (EIT) senior Mechanical Engineering on-campus lecturer and the Doctor of Engineering Research Coordinator, Dr. Vishal... Read more
Engineering Institute of Technology