Evaluation of Explosion-resistant Seals, Stoppings, and Overcast for Ventilation Control in Underground Coal Mining

ISBN-13: 9781494235154 / Angielski / Miękka / 2002 / 56 str.

Eric S. Weiss; Kenneth L. Cashdollar; Michael J. Sapko

Opis

This report discusses the construction techniques, testing methods, and explosion test data collected for the pumpable cementitious seals; the seal, stopping, and overcast designs for the Australian program; and the Packsetter preloaded solid-concrete-block seal.