ETL 1110-3-488
1 Mar 98
locate, although many state transportation departments do keep these records. Sometimes the
aggregate source can be reliably determined by simple observation of the aggregate in the
pavement. Service record studies can provide information on popouts, weatherouts, D-cracking,
and other deleterious material-related problems, abrasion resistance, shrinkage, skid-resistance
and other aggregate-related performance. Typical data collected during service record studies
includes:
Pavement information:
Pavement designation
Installation location
Date constructed
Contractor and contract number
Source of fine aggregate
Source of coarse aggregate
Source of cementitious materials
Nominal maximum size of aggregate
Mixture proportions
Strength information
Joint spacing
Thickness
Traffic type and frequency
Latest condition rating, if applicable
Pavement condition:
Crazing
Spalling
Popouts
Weatherouts
Soundness
Abrasion
Surface texture
Overall condition
(10) Conclusions and recommendations. The conclusions and recommendations in the
materials report are used to prepare the specifications. This section typically includes
recommendations on whether to list aggregate sources in the specifications (see Annex 1), what
sources should be listed, what cementitious materials to allow, source(s) of water, allowable
admixtures, air content, maximum aggregate size, any unusual requirements for aggregates or
aggregate deleterious materials, what strength and age to specify, and the like.
B-6
Previous Page
