AASHTO DESIGN GUIDES FOR RIGID PAVEMENTS
(1) How were traffic, pavement design and pavement serviceability related to one another in the
performance equation for rigid pavements, which formed the basis for the AASHTO pavement
design method for rigid pavements?
(2) The original AASHTO design equation for rigid pavements was applicable to only one type
of concrete and one subgrade type. How was it made applicable to other concrete types and
subgrade types?
(3) Describe all the design parameters considered in the AASHTO Design Guides for rigid
pavements.
(4) Describe how all of the above design parameters are to be obtained.
PCA DESIGN METHOD
(5) Describe the two failure criteria used in the PCA pavement design method. How is the
adequacy of a pavement design determined?
(6) Describe the assumptions and limitations of the PCA design method.
CONSIDERATION OF THERMAL EFFECTS IN CONCRETE PAVEMENT DESIGN
(7) Describe how the maximum temperature-load induced stresses in a concrete pavement slab
can be determined.
(8) Describe the effects of (A) subgrade stiffness, (B) concrete modulus, (C) slab length, (D)
coefficient of thermal expansion of concrete, (E) joint and edge stiffness, & (F) slab thickness on
the maximum stresses in the concrete slab, when the effects of thermal gradient in the concrete
slab is considered. Compare them with the case when thermal gradient is not considered.
(8) Explain how an elastic joint in a concrete pavement work.
MEDCONP
(10) Describe the analysis procedure used by MEDCONP computer program in determining
whether a slab thickness is adequate for the expected traffic and environmental condition.
Include in your description the following:
(A) Computation of maximum stresses caused by each type of load.
(B) Determination of failure.
(11) What information are needed to do this kind of analysis?
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