Technology reports of the Yamaguchi University

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Technology reports of the Yamaguchi University Volume 3 Issue 2
published_at 1983-12

Experimental study on bench cut with demolition agent

Experimental study on bench cut with demolition agent
Hashimoto Ken-ichi
Kudo Yozo
Nakagawa Koji
fulltext
941 KB
KJ00004351047.pdf
Descriptions
Demolition agent can fracutre rock and concrete by static expansive pressure generated by the hydration of CaO. In this study, three series of model experiments were conducted on the bench cut with demolition agent. They are composed of the experiments on the clarification of crack propagation mechanism, on the determination of hole diameter to spacing ratio and on the improvement of toe breaking techniques. The experimental results were discussed from the point of practical use of demolition agent in open pit or underground stopes.