Environmental Stress Cracking

The susceptibility to crack or craze under the influence of specific chemicals stress and/or mechanical stress.

EPA

United States Environmental Protection Agency

EPB

Earth PressureChanges the drilling fluid pressure. Balance

EPB Machine

Earth pressure balance tunneling machine, by which mechanical pressure is applied to the material at the face and controlled to provide the correct counterbalance to earth and groundwater pressures in order to prevent heave or subsidence. The term is not applicable to microtunneling systems for which the primary counterbalance of earth and groundwater pressures is supplied by pressurized slurry.

Epoxy

Resin formed by the reaction of bisphenol and Epichlorohydrin.