An experimental research on the rebound detection in steel fiber concrete

To respond to the construction of the national key project,the highway from Xiamen to Kunming,we confected a series of concrete test pieces by mixing fly ash and C40 slag in the concrete to study the rebound detection and the compression strength of the pieces.The plot of rebound value versus the compression strength was set up when a regression analysis of the data collected from the test finished.The results indicated that the relativity between the compression strength and the rebound value was quite obvious.It could be concluded that the method introduced in this paper is simple and practical.