Method for using a foamed glass composite material
AssigneeEarthstone International LLC
InventorsAndrew Ungerleider, W. Gene Ramsey
Life of this patent
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Abstract
A method for establishing a runway safety area adjacent a runway, wherein the runway safety area is a cement matrix having a plurality of foamed glass aggregate bodies suspended therein, including mixing cement and foamed glass aggregate bodies to define a composite material, forming the composite material into a runway safety area defining a plurality of foamed glass aggregate bodies suspended in a cement matrix, taxiing an aircraft over the runway safety area and crushing at least a portion of the runway safety area with the aircraft to bleed off the aircraft's kinetic energy, wherein the runway safety area has a crushing failure mode.
Claims13
A method of slowing an aircraft overrunning a runway, comprising:
- a) covering an area adjacent a runway with foamed glass bodies:
- b) pouring liquid cement over the foamed glass bodies;
- c) curing the liquid cement to define a composite material of foamed glass bodies in a cementitious matrix;
- d) crushing at least a portion of the composite material with an oncoming aircraft;
- wherein the composite material is at least 85 volume percent foamed glass bodies;
- wherein during step b), the liquid cement flows over and around the foamed glass bodies;
- wherein during step d) the aircraft is slowed;
- wherein the foamed glass bodies have an open cell structure;
- wherein the respective foamed glass aggregate bodies have a crush strength of no more than 100 PSI;
- wherein the respective foamed glass aggregate bodies have densities of between 100 kg/m3 and 180 kg/m3;
- and
- wherein the cementitious matrix has a cementitious surface.
A method of slowing an aircraft overrunning a runway, comprising:
- a) establishing a runway safety area adjacent a runway, wherein the runway safety area is formed from a plurality of open cell foamed glass aggregate bodies suspended in a cement matrix to define a composite material;
- b) moving an aircraft over the runway safety area;
- c) crushing at least a portion of the runway safety area with the aircraft;
- and
- d) slowing the oncoming aircraft;
- wherein the runway safety area has a crushing failure mode;
- and
- wherein the respective foamed glass aggregate bodies have a crush strength of no more than 100 PSI and wherein the respective foamed glass aggregate bodies have
- densities of between 100 kg/m3 and 180 kg/m3.
A method for establishing a runway safety area adjacent a runway, wherein the runway safety area is a cement matrix having a plurality of foamed glass aggregate bodies suspended therein, comprising;
- a) mixing cement and foamed glass aggregate bodies to define a composite material;
- b) forming the composite material into a runway safety area defining a plurality of foamed glass aggregate bodies suspended in a cement matrix;
- c) moving an aircraft over the runway safety area;
- and
- d) crushing at least a portion of the runway safety area with the aircraft to bleed off the aircraft's kinetic energy;
- wherein the foamed glass aggregate bodies are open cell;
- wherein the respective foamed glass aggregate bodies have a crush strength of at between 50 PSI and 100 PSI;
- wherein the respective foamed glass aggregate bodies have densities of between 100 kg/m3 and 180 kg/m3;
- and
- wherein the runway safety area has a crushing failure mode.
Dependencies are inferred from the claim text.