TM 5-826-6/AFR 93-5
CHAPTER 5
DETAILED SURVEY PROCEDURE FOR RIGID PAVEMENT
5-1. Sample unit inspection and record keeping. Each sample unit, or those selected by the statistical sampling
procedure, in the feature is inspected. The actual inspection is performed by walking over each slab of the sample unit
being surveyed and recording distress existing in the slab on the jointed rigid pavement survey data sheet (fig 5-1). One
data sheet is used for each sample unit. A sketch is made of the sample unit, using the dots as joint intersections. The
appropriate number code for each distress found in the slab is placed in the square representing the slab. The letters L
(low), M (medium), or H (high) are included along with the distress number code to indicate the severity of the distress.
For example, 75L indicates that low severity corner spalling exists in the slab. Identification of distress types and their
severity levels are contained in appendix A. These guidelines must be followed very closely.
5-2. Inspection summary. Space is provided on the jointed rigid pavement survey data sheet for summarizing the
distresses and computing the PCI for the sample unit. The distress type numbers, their severity levels and the number of
slabs in the sample unit containing each type and level should be summarized. The percentage of the total number of
slabs in the sample unit containing each distress type and severity level should be calculated. Using figures 5-2 through 5-
16, the deduct value for each distress type and severity level are determined. The deduct values should be calculated to
obtain the deduct total.
5-1
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