Patent ID: 11970288
Assignee: EARTHSTONE INTERNATIONAL LLC
Field: Civil engineering (Other fields)
Classification: CPC B  C  E | IPC B  C  E

Claim 15:
16. A method for establishing a runway safety area adjacent a runway, wherein the runway safety area is a plurality of foamed glass aggregate bodies, comprising;
a) filling an excavation positioned adjacent a runway with stacked irregularly shaped open-cell foamed glass aggregate bodies;
b) preventing the irregularly shaped open-cell foamed glass aggregate bodies from moving relative to one another under an applied force to define an aircraft arrestor bed with crushing as the aircraft arrestor bed's primary failure mode;
c) moving an aircraft over the arrestor bed; and
d) crushing at least a portion of the arrestor bed with the aircraft to bleed off the aircraft's kinetic energy;
wherein the irregularly shaped open-cell foamed glass aggregate bodies intersect one another at a 35-degree stacking angle; wherein the irregularly shaped open-cell foamed glass bodies have aspect ratios of about 1:1.7; and wherein the runway safety area has a crushing failure mode.