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Paving material for absorbing electromagnetic wave and pavement structure using it

  • US 7,160,049 B2
  • Filed: 09/28/2001
  • Issued: 01/09/2007
  • Est. Priority Date: 09/28/2001
  • Status: Expired due to Fees
First Claim
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1. A road comprising:

  • a substructure disposed at a lower portion of a pavement for forming a paved road; and

    a surface course having an electromagnetic wave absorption function disposed above the substructure of the pavement, the surface course being formed by a course of an electromagnetic wave-absorbing pavement material and having such a thickness as to enable attenuation of electromagnetic waves and prevention of interference caused by reflection of the electromagnetic waves when the electromagnetic waves which have entered a top surface of the surface course pass through the surface course, reflect off a bottom surface thereof and pass through the surface course again,wherein the surface course having the electromagnetic wave absorption function which forms the pavement is formed either of a porous bituminous mixture or porous concrete, the mixture or the concrete having a porous structure through which water can freely flow.

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