Off-Systems Guide Schedule for Federal-Aid Acceptance Sampling and Testing (FAST)

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If a local public agency receives funds from MoDOT but does not use MoDOT QC/QA practices, the guidelines in the Off-Systems Guide Schedule for Federal-Aid Acceptance Sampling and Testing (FAST) table, below, should be followed.


Type of Construction or Material Tests to be Made (if specified) Sampled Minimum Number of Tests
Grading - EmbankmentDensity/MoistureAfter compactionA minimum of 4 density tests per day for each active grading spread regardless of road surface
Subgrade PreparationDensity/MoistureAfter compactionA minimum of 4 density tests per day for each active grading spread regardless of road surface
Aggregate Base1 (roadway and shoulders)GradationBefore compactionOne per 5000 tons or fraction thereof per specified gradation per source. None required if less than 1000 tons of a specified gradation.
Type 1, 2, 3, 42, 5 or Stabilized Permeable2Density/MoistureAfter compactionA minimum of 4 density and moisture tests per day
Plasticity IndexBefore compactionOne per project per specified gradation, per source. None required if less than 1000 tons of specified gradation.
Sand-Soil Base or Soil-Cement Base or Soil-Lime BaseGradationBefore compactionOne per 5000 tons or fraction thereof per specified gradation per source. None required if less than 1000 tons of a specified gradation.
DensityAfter compactionA minimum of 4 density and moisture tests per day
Liquid LimitBefore compactionOne per project per specified gradation, per source. None required if less than 1000 tons.
Plasticity IndexBefore compactionOne per project per specified gradation, per source. None required if less than 1000 tons.
Crushed Stone or Gravel SurfacingGradation
-
One per project per specified gradation, per source. None required is less than 1000 tons or 750 cubic yards.
Plant Mix Bit. Base or Plant Mix Bit. Pavement or Asphaltic Concrete PavementGradationBefore mixingOne per 500 tons or fraction thereof per type of construction. None required if type of mixture is less than 250 tons.
DensityAfter compactionOne sample per day unless undesirable results are achieved, then another sample will be required. The results of the re-test will become the acceptance.
Asphalt ContentBefore compaction One per day, using an approved AASHTO method for determining asphalt content.
PCC Pavement or PCC BaseGradation (both coarse and fine aggregates)Batch plantOne per 5000 tons or fraction thereof per specified gradation, per source. None required if less than 1000 tons of a specified gradation.
Gradation Deleterious (coarse aggregate)Batch plantOne per project per specified gradation, per source. None required if less than 1000 tons of a specified gradation.
Air ContentJobsiteAir tests are to be made at the beginning of each pour and for each 100 cubic yards thereafter.
SlumpJobsiteConsistency of concrete should be determined each time an air-entrainment test is made.
Compressive StrengthJobsiteTwo routine specimens should be created from the first pour of each class of concrete in any one day and every 200 cubic yards thereafter.3
Concrete Masonry (structures, box culverts, curb & gutter, sidewalk, etc.)Gradation (both coarse and fine aggregates)Batch plantOne per 1000 tons or fraction thereof per specified gradation, per source. None required if less than 100 tons of a specified gradation.
Deleterious (coarse aggregate)Batch plantOne per 1000 tons or fraction thereof per specified gradation, per source. None required if less than 100 tons of a specified gradation.
Air ContentJobsiteAir tests are to be made at the beginning of each pour on structures and for each 100 cubic yards thereafter.
SlumpJobsiteConsistency of concrete should be determined each time an air-entrainment test is made.
Compressive StrengthJobsiteTwo routine specimens should be created from the first pour of each class of concrete in any one day and every 200 cubic yards thereafter.3
1 When aggregate base shown in the contract is to be measured and paid for by area, convert the area to tons and follow the sampling frequency shown in this table. When converting, use the factor .06 tons/sq. yd./1 in. thickness of compacted base.
2 Gradation only for Type 4 and Stabilized Permeable Base.
3 Air and slump tests are required for each set of cylinders created.
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