April 18, 2023

Supersedes April 20, 2021

Sampling & Testing Guide-Minimum Frequency

 

COLD-IN-PLACE RECYCLED ASPHALT PAVEMENT

Section 2318

Matls. IM 204

Appendix K (US) Units

 

MATERIAL OR

 CONSTRUCTION

ITEM

 

 

 

TESTS

 

METHOD OF

ACCEPTANCE

&

RELATED IMs

 

QUALITY CONTROL

 

INDEPENDENT ASSURANCE
& VERIFICATION S&T

 

REMARKS

 

 

SAMPLE

BY

 

FREQ.

 

SAMPLE

SIZE

 

TEST

BY

 

REPORT

 

S&T

TYPE

 

SAMPLE

BY

 

FREQ.

 

SAMPLE

SIZE

 

TEST

BY

 

REPORT

 
SOURCE INSPECTION

Asphalt Stabilizing Agent

Quality

AS                   437

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                           

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                           

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                           

 

 

 

 

 

 

 

 

 

 

 

 

 
GRADE INSPECTION

RAP (2318.02)

Max Size

                           

 

 

 

 

 

V

RCE

1st day +

1/week

10 lb

RCE

 

 

Stabilizing Agent

(Engr. Emulsion)

Quality Residue

Cert                     

                       360

 

 

 

 

 

V

RCE/CONTR

RCE/CONTR

1/project

1/day (2)

1 gal

1 qt

CTRL

DME

 

Must use plastic bottle for emulsion

Stabilizing Agent

(Foamed Asphalt)

Quality

DSR

Cert

 

 

 

 

 

V

RCE/CONTR

RCE/CONTR

1/project

1/day (2)

1 qt

1 qt

CTRL

DME

 

 

Stabilizing Agent

(Std. Emulsion)

Quality Residue

Cert                     

                       360

 

 

 

 

 

V

RCE

1/day (2)

1 qt

DME

 

Must use plastic bottle for emulsion

Uncompacted Mixture

Moisture Density

                       504

                       504

 

 

 

 

 

V

RCE

1/lot

40 lb

DME

 

Sealed Container

Compacted

Mixture

Moisture (1)

Density

                       504

                       504

CONTR

CONTR

10/lot

10/lot

 

CONTR

CONTR

 

 

 

 

 

 

 

Witnessed by RCE

Completed CIR Layer

Moisture

504

CONTR

2/lot (3)

 

CONTR

 

 

 

 

 

 

 

 

Smoothness

 

2318 only

 

 

 

 

 

 

 

 

 

 

 

 

AS-Approved Source

Cert- Certification Statement

RCE-Resident Construction Engineer/Project Engineer

IA-Independent Assurance

ASD-Approved Shop Drawing

 

DME-District Materials Engineer

V-Verification

S&T-Sampling & Testing

 

CTRL-Central Laboratory

 

 

 

CONTR-Contractor

 

 

(1)    See IM 504 for Day 1 moisture correction factor.

(2)    The sample from the first day and 1/week shall be forwarded to the District Laboratory for testing. The other samples shall be retained for submission in the event of a failing test result.

(3)    No more than 3 calendar days between consecutive tests. Adjustments may be approved by the Engineer for inclement weather or conditions.

(4)    For Local agency projects with no Federal funding, verification samples or monitor samples sampled by the DME are not required. These samples may be sampled by the contracting authority. With prior approval, these samples may be tested by the Iowa Department of Transportation Central Laboratory.