5837-13 - Asphalt Institute Method for Design of Asphalt...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Asphalt Institute Method for Design of Asphalt Pavement Failure Criteria: 1. 20 – 25% Cracking 2. Rut Depth of 0.5 inch 1. Fatigue Cracking Criterion (based on the results of AASHO Road Test and laboratory fatigue data) N = 18.4 (4.32 X 10 -3 ε t –3.29 E -0.854 ) where N = number of 18-kip single axle load. ε t = computed tensile strain at the bottom of the asphalt layer. E = dynamic modulus of asphalt mixture at 10 Hz (in psi)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Cracking criterion is based on the tensile strain at the bottom of the asphalt layer ( ε t ). Rutting criterion is based on the vertical compressive strain at the top of the subgrade ( ε c ).
Background image of page 2
(based on analysis of performance of test pavements in California) ε v = 1.05 X 10 -2 (1/N) 0.223 where N = number of 18-kip single axle loads ε v = computed vertical compressive strain at subgrade surface. 3. Traffic Loads ASSHTO load equivalence factors are used to convert traffic loads into equivalent 18-kip single
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 8

5837-13 - Asphalt Institute Method for Design of Asphalt...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online