| 1 |
Alabama |
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| 2 |
Arizona |
method compaction spec - with the option for the engineer to increase the number of passes based on nuclear density test results |
when the moisture content of the cir layer is reduced to 1.5% or less |
2.5" - 3" |
Yes |
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hfe-300p w/ one percent liquid antistripping agent |
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| 3 |
Arkansas |
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| 4 |
Colorado |
Yes, sampled at 1/5000 square yards, the maximum density is determined by AASHTO T-180. After the area is compacted by the contractor we require 100%. |
Once the free moisture is below 1% of the total weight of the mix. |
About 4 to 8 inches |
Yes |
Yes |
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Emulsion with lime slurry. Sometimes we us an Asphalt Rejuvenation Agent. |
| 5 |
Connecticut |
Yes, Nuclear density gauge |
2 hours |
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Yes |
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| 6 |
Delaware |
98% density is required |
usually 7 days |
8" maximum |
Yes |
Yes |
NO |
Yes |
NO |
NO |
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| 7 |
Florida |
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| 8 |
Hawaii |
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| 9 |
Idaho |
YES, METHOD SPECIFICATION |
10 DAYS |
3 INCHES |
YES |
CMS-2 |
KOCH PRODUCT, REFLEX |
NONE |
NONE |
NONE |
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| 10 |
Illinois |
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| 11 |
Iowa |
YES the contractor must achieve a percentage (say 94%) of a lab compacted dry density |
The overlay may be placed when the CIR lift reaches 1.5% moisture or when the lift reaches 0.3% moisture above the "normal" pavement moisture. |
3 to 4 inches |
YES or controlled screed, but not by a motor grader |
YES |
YES (gaining interest) |
NO |
YES (gaining interest) |
NO |
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| 12 |
Kentucky |
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| 13 |
Kansas |
Percent of a test strip. |
Require a maximum of 2 % moisture - usually 48 hours in hot dry weather. |
Typically 4 inch depth of old pavements |
Yes |
Yes |
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Require the addition of lime also. We have used fly ash in lieu of emulsion in the past but reflective cracking was a concern. |
| 14 |
Louisiana |
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| 15 |
Maine |
Yes, 98 Percent of test strip w/ thin layer gauge |
4 days |
3" - 5" |
Yes |
Yes, with cement added. |
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| 16 |
Maryland |
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| 17 |
*Maryland - Frederick County* |
Yes, nuclear gage |
Typically 7-10 days, pending weather conditions. |
3" - 6" |
Yes |
Yes |
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| 18 |
Massachusetts |
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| 19 |
Mississippi |
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| 20 |
Missouri |
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| 21 |
Montana |
ASTM D2950 |
2 hours before traffic is allowed on the pavement |
2.5 inches |
Yes |
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Yes |
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| 22 |
Nebraska |
Yes, nuclear gauge/ rolling pattern |
After 7 days, they usually wait longer |
4"-5" up to full depth |
Paver on partial depth; blade with full |
Yes |
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Lime |
| 23 |
Nevada |
We perform density testing with nuclear gages and a control section. |
In general, we require a minimum of ten days and a maximum of 45 days to place the surface overlay. However the minimum days can change on specific projects. |
We CIP 3". |
Yes |
CMS-2s only emulsion allowed. |
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We add 1-1/2% quicklime by slurry. |
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| 24 |
New Hampshire |
Test Strip/Nuclear Gauges |
After 14 day cure |
3" to 4" |
Yes |
Yes |
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| 25 |
New Jersey |
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| 26 |
New Mexico |
Ninety six percent (96%) of a laboratory prepared Marshall briquette |
Minimum of 2 hours |
3 to 4 inches |
Yes |
Yes |
No |
No |
No |
No |
N/A |
| 27 |
New York |
No density tests are performed yet. We are interested in developing a density requirement that might allow us to expand the use of CIR to higher volume roadways. |
After a minimum 7 days cure time, but often the cure time ends up being longer. |
75 or 100 mm, most commonly 100 mm. |
Yes |
Yes. HFMS-2 or CMS-2 |
We allow the contractor to propose the use of alternative emulsions. |
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| 28 |
North Carolina |
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| 29 |
Ohio |
No |
10 TO 14 DAYS |
6 TO 8 INCHES |
NOT ESTABLISHED |
THIS IS ONLY EXPERIENCE WE HAVE HAD |
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| 30 |
Oklahoma |
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| 31 |
Ontario |
We test compaction in the field by removing pavement slabs and testing in the laboratory |
14 days, plus moisture requirements and compaction requirements must be met. |
100 mm |
Yes |
Yes - high float |
no |
no |
on a trial basis |
no |
no |
| 32 |
Pennsylvania |
Yes - Nuclear gage - 96% of Control Strip |
At least 1 week cure time required. May determine moisture content measurement (max. 2%). |
Min. 3" Max. 5" |
Yes (If you mean is a strike-off screed required). |
Yes |
If you mean Modified, Yes |
No |
No |
No |
No |
| 33 |
South Carolina |
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| 34 |
South Dakota |
Yes we use 97% of Test Strip density (see Section 370 of the Standard Specs) |
Moisture in the CIR material must be less than or equal to 1.5% prior to allowing the material to be covered up. |
4" |
Yes |
AE 200S typically @ 1.5% |
We have done a couple of test sections using Koch's Engineered Emulsion (Reflex) |
No |
No |
No |
No |
| 35 |
Tennesee |
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| 36 |
Texas |
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| 37 |
Vermont |
95% of target density determined by AASHTO T 245 (Mod). |
Free moisture must be reduced to 1.5% or less. |
3" sometimes 4" |
Yes |
High float |
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| 38 |
Virginia |
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| 39 |
Washington |
Yes, roller pattern |
Try to limit moisture in the CIR mat to about 1 percent, typically a week following CIR placement |
0.25 to 0.35' |
Yes |
CMS-2S |
WSDOT used CIREE (Reflex) on two test projects with mixed results |
No |
No |
No |
No |
| 40 |
West Virginia |
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| 41 |
Wisconsin |
Yes, with a Nuclear meter |
Yes |
3" |
Yes |
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Yes |
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| 42 |
Wyoming |
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