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


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.


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! Type of Construction or Material  || Tests to be Made (if specified) || Sampled || Minimum Number of Tests
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|'''Grading - Embankment'''||Density/Moisture||After compaction||A minimum of 4 density tests per day for each active grading spread regardless of road surface
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|'''Subgrade Preparation'''||Density/Moisture||After compaction||A minimum of 4 density tests per day for each active grading spread regardless of road surface
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|'''Aggregate Base<sup>1</sup>''' (roadway and shoulders)||Gradation||Before compaction||One per 5000 tons or fraction thereof per specified gradation per source.  None required if less than 1000 tons of a specified gradation.
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|rowspan="2"|'''Type 1, 2, 3, 4<sup>2</sup>, 5''' or '''Stabilized Permeable<sup>2'''</sup>||Density/Moisture||After compaction||A minimum of 4 density and moisture tests per day
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|Plasticity Index||Before compaction||One per project per specified gradation, per source.  None required if less than 1000 tons of specified gradation.
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|rowspan="4"|'''Sand-Soil Base''' or '''Soil-Cement Base''' or '''Soil-Lime Base'''||Gradation||Before compaction||One per 5000 tons or fraction thereof per specified gradation per source.  None required if less than 1000 tons of a specified gradation.
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|Density||After compaction||A minimum of 4 density and moisture tests per day
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|Liquid Limit||Before compaction||One per project per specified gradation, per source.  None required if less than 1000 tons.
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|Plasticity Index||Before compaction||One per project per specified gradation, per source.  None required if less than 1000 tons.
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|'''Crushed Stone''' or '''Gravel Surfacing'''||Gradation||<center>-</center> ||One per project per specified gradation, per source.  None required is less than 1000 tons or 750 cubic yards.
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|rowspan="3"|'''Plant Mix Bit. Base''' or '''Plant Mix Bit. Pavement''' or '''Asphaltic Concrete Pavement'''||Gradation||Before mixing||One per 500 tons or fraction thereof per type of construction.  None required if type of mixture is less than 250 tons.
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|Density||After compaction||One sample per day unless undesirable results are achieved, then another sample will be required.  The results of the re-test will become the acceptance.
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|Asphalt Content||Before compaction|| One per day, using an approved AASHTO method for determining asphalt content.
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|rowspan="5"|'''PCC Pavement''' or '''PCC Base'''||Gradation (both coarse and fine aggregates)||Batch plant||One per 5000 tons or fraction thereof per specified gradation, per source.  None required if less than 1000 tons of a specified gradation.
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|Gradation Deleterious (coarse aggregate)||Batch plant||One per project per specified gradation, per source. None required if less than 1000 tons of a specified gradation.
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|Air Content||Jobsite||Air tests are to be made at the beginning of each pour and for each 100 cubic yards thereafter.
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|Slump||Jobsite||Consistency of concrete should be determined each time an air-entrainment test is made.
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|Compressive Strength||Jobsite||Two routine specimens should be created from the first pour of each class of concrete and every 200 cubic yards thereafter.<sup>'''3'''</sup>
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|rowspan="5"|'''Concrete Masonry''' (structures)||Gradation (both coarse and fine aggregates)||Batch plant||One per 1000 tons or fraction thereof per specified gradation, per source.  None required if less than 100 tons of a specified gradation.
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|Deleterious (coarse aggregate)||Batch plant||One per 1000 tons or fraction thereof per specified gradation, per source.  None required if less than 100 tons of a specified gradation.
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|Air Content||Jobsite||Air tests are to be made at the beginning of each pour on structures and for each 100 cubic yards thereafter.
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|Slump||Jobsite||Consistency of concrete should be determined each time an air-entrainment test is made.
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|Compressive Strength||Jobsite||Two routine specimens should be created from the first pour of each class of concrete in any one day and every 200 cubic yards thereafter.<sup>'''3'''</sup>
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|colspan="4"|<sup>'''1'''</sup> 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.
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|colspan="4"|<sup>'''2'''</sup> Gradation only for Type 4 and Stabilized Permeable Base.
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|colspan="4"|<sup>'''3'''</sup> Air and slump tests are required for each set of cylinders created.
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