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Proceedings of the 32nd International Symposium on Automation and Robotics in Construction and Mining (ISARC 2015)
This paper describes on the estimation method of compressed strength for the concrete construction such as highway roads, large bridges, dam and tunnel, and the autonomous mobile robot with that the small sized grinding drill. In the control of a drill feed rate using the torque motor, the feed rate is expected to be a constant as the torque depending on load. However, the feed rate of drill was found to change for concrete strength and to be the approximately constant to concrete strength whendoi:10.22260/isarc2015/0076 fatcat:sr7sa4jcyrfebnijrat3jp5jmm