PHASE II REPORT - Caltrans

• Abrasion: CAT. This test may be conducted on fully (oven cured) samples under
water and with various conditioning methods including soaking at different
temperatures and times, and different curing cycles.
• Water Resistance: The CAT will be carried out for extended times on fully cured
samples under elevated temperature under water. This will be expressed as a ratio
of 1-hour soak to 6-day soak and a limit set for acceptable mixes of retained
abrasion resistance.
• Deformation Resistance: The existing TB-109, Loaded Wheel Test, will be used to
evaluate deformation characteristics.
Table 3.7: Long Term Performance Tests included in S3 Specifications
Long Term Performance Tests Test Method Defined Property
Abrasion Resistance CAT
Water Resistance CAT
Permanent Deformation ISSA TB-109
3.6.7 The Asphalt Pavement Analyzer Test (APA)
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Raveling
Resistance to moisture damage
Deformation characteristics
Due to budget limitations, the APA test was not evaluated in this study. However, the team
recommends that future research be conducted regarding the use of the APA as an alternative
to the Loaded Wheel Tests (LWT) to evaluate the permanent deformation properties of slurry
systems used for rut-filling applications.
3.7 PROPOSED S3 SLURRY SYSTEMS MIX DESIGN METHOD
The proposed mix design procedure is shown in Figure 3.9. The design procedure addresses
the shortcomings of the existing procedures by examining mix properties that relate to field
performance issues. The steps in the proposed mix design procedure are described below.