Results showed that the flexual strength and the flexual toughnessindex of UHPC become more than 2 times and 10 times respectively of those of the matrix concrete by the reinforcement of fibers.
Two important facts, crystal shape and magnetic inclusions, which affect toughnessindex were expounded. Especially, magnetic inclusions affect thermal toughnessindex more than tough ness index.
To use the drop-weight impact meter to measure the impact toughness of the asphalt mixture, put forward the use of the impact toughness as an index to evaluate the anti-reflective cracking ability.