Quiet pavement breaking research and development at the Institute of Gas Technology since 1962. Paper presented at the 53rd Annual Meeting of the Highway Research Board HRB, Washington, D.C., January 1974.

The paper reports research and development work by the Institute of Gas Technology on three nonconventional and quieter ways of breaking concrete pavement: plasma torch cutting, microwave cracking, and microwave cracking aided by a high-pressure water jet. In particular the latter is described.