Floating low density concrete barrier

Details Floating low density concrete barrier Floating low density concrete barrier

2006-02-07

2006-02-07

Sotelo, Jesus D. (Department: 3617)

Ships

Floating platform

Float assembly

C114S264000, C405S063000, C405S219000

Reexamination Certificate

active

06994048

ABSTRACT:
A barrier for small boats has a plurality of flotation modules on lines extending across a waterway. The flotation modules are cast from a buoyant concrete mixture of cement, water, beaded forms of expanded polystyrene, and polypropylene fibers that is non-water-absorbing, crushable, not susceptible to failure in shear, and has a density lighter than water. The mixture can have cement with the beads in a ratio of about 1:3.5 by volume, the water with the cement in a ratio of about 0.5 (1:2) by weight and the fibers with the cement in a ratio of about 1:141 by weight. Lines pass thru the flotation modules and slip upon impact of a flotation module by a speeding boat, and the buoyant concrete mixture crushes to absorb some energy of the impact. The barrier is relatively low cost, can be made next to a waterway from readily available materials by unskilled workers and is deployed in a minimum amount of time.

REFERENCES:
patent: 56099889 (1981-08-01), None
patent: 57130633 (1982-08-01), None

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