Sampling & Testing Guide-Minimum Frequency

October 17, 2023

ASPHALT MIXTURES

Matls. IM 204

Supersedes October 19, 2021

Section 2303 & 2213

Appendix F (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

Aggregates-Coarse (4127)

 

AS                   209

 

 

 

 

 

 

 

 

 

 

 

 

 

Aggregates-Fine (4127)

 

 

AS                   209

 

 

 

 

 

 

 

 

 

 

 

 

Hydrated Lime (4127)

 

AS              491.04

 

 

 

 

 

 

 

 

 

 

 

 

Asphalt Binder

 

AS                   437

 

 

 

 

 

 

 

 

 

 

 

 

Emulsions & Cutbacks

 

 

AS                   437

 

 

 

 

 

 

 

 

 

 

 

 

Release Agent

 

AB              491.15

 

 

 

 

 

 

 

 

 

 

 

 

 

Recycled Asphalt Shingles

 

AS                   506

 

 

 

 

 

 

 

 

 

 

 

 

 
PLANT INSPECTION

Aggregates (2303)

Quality

                           

 

 

 

 

 

V

DME

1/20,000 Ton

50 lb.

CTRL

 

 

Combined Aggregate (4127)

Gradation

         302, 306, 336

RCE/

CONTR

1/lot

IM 301

CONTR

 

V

 

 

IA

RCE/

CONTR

 

Sample 1/day,

Test 1st day + 20%

Systems Approach*

IM 301

 

 

DME/

RCE

IM 216

 

 

IM 216

 

 

Moisture

 

                           

CONTR

1 / half

day

1000 gm

CONTR

 

 

 

 

 

 

 

Drum Mix Plants Only

Asphalt Binder

DSR

 

 

Quality

AS              Cert

323

 

 

 

 

 

V

 

 

V

IA

RCE/

CONTR

 

DME

Sample 1/day

Test 1st  1/week

 

1/20,000 T of Mix

Systems Approach

4 oz tin

 

 

1 qt

DME

 

 

CTRL

 

Log all shipments

** Interlayer

Cutback

 

AS              Cert

 

 

 

 

 

 

 

 

 

 

 

Log all shipments

Emulsion

Residue

AS               360

 

 

 

 

 

V

RCE

1/project

1 qt

DME

 

Plastic bottle required

AB-Approved Brand

 

CONTR-Contractor

 

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

 

*A project approach may be applied at the discretion of the DME at the frequency 1/project.

 

Sampling & Testing Guide-Minimum Frequency

October 17, 2023

ASPHALT MIXTURES

Matls. IM 204

Supersedes October 19, 2021

Section 2303 & 2213

Appendix F (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

 
GRADE INSPECTION

Uncompacted Mixture:

Lab Density & Lab Voids

      321,322, 350

   325G, 357, 338

 

RCE/

CONTR

As per 2303

40 lb

CONTR

 

V

 

IA

RCE/

CONTR

As per 2303

Test 1/day

Systems Approach

40 lb

DME

 

***Interlayer

 

Moisture Sensitivity

              319, 322, 325G

Article 2303.02, E,2

 

 

 

 

 

 

V

RCE/

CONTR

Test 1st Sample at 500 tons then sample 1/10,000 tons per 2303 until 1st sample accepted

(test as needed)

70 lb

CTRL

 

 

Compacted Mixture

Mat Density, Thickness & Voids

            320, 321

                   337

 

 

 

 

 

V

 

IA

RCE/

CONTR

DME

Lot

 

1 lot/project*

Min 8/lot

 

RCE

 

DME

 

 

Joint Density

SS-15004

Or

DS-15036

 

 

 

 

 

V

RCE/

CONTR

Lot

3/lot

RCE

 

6-inch core

 

Smoothness

                   341

CONTR

100%

100%

CONTR

 

V

DME

10%

 

DME

 

 

 

 

 

 

AB-Approved Brand

 

CONTR-Contractor

 

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

 

 

* A system approach may be applied at the discretion of the DME.

NOTE: A Verification sample for asphalt binder quality and aggregate quality not required under 2000 tons of mix.

NOTE: RCE/CONTR indicates that the Contractor shall assist in the sampling at the direction of and witnessed by the Project Engineer.

**NOTE:  For interlayer construction, as a minimum, sample 1 Qt. each day, and perform the MSCR test on the first and last day’s binder sample of interlayer placement.

*** NOTE:  For interlayer construction, in addition to the required uncompacted mix sample(s) tested by the contractor and district lab, sample and retain at least one additional box of uncompacted mix each day of interlayer placement.

NOTE: For Local agency projects with no Federal Funds Independent Assurance, IA, tests are not required.

NOTE: 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.

NOTE: For Local agency projects with no Federal funding, smoothness verification testing may be tested and evaluated by the DME.