Asphalt for paving

Asphalt for paving

  • CN 1,609,167 A
  • Filed: 06/30/2004
  • Published: 04/27/2005
  • Est. Priority Date: 06/30/2003
  • Status: Active Application
First Claim
Patent Images

1. road tar is characterized in that penetration degree under 25 ℃

  • is that viscosity under 30~

    100 (1/10mm), 60 ℃

    has the value of formula (1) more than the value of obtaining in the scope of this penetration degree,logY=

    6.16-0.109PT+1.84×

    10 -3PT 2-1.53×

    10 -5PT 3+4.80×

    10 -8PT 4???(1) Y;

    the viscosity (P (pool)) of pitch under 60 ℃

    PT;

    the penetration degree (1/10mm) of pitch under 25 ℃

    .

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