Sampling & Testing Guide-Minimum Frequency

April 21, 2015

ROADWAY & BORROW EXCAVATION & EMBANKMENTS

Matls. IM 204

Supersedes October 21, 2014

Section 2102 & 2107

Appendix A (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

Special Backfill, Crushed Stone (4132.02),

Gravel (4132.03)

 

 

AS                               209

                                         

 

 

 

 

 

 

 

 

 

 

 

 

 

Crushed Concrete

(4132.02), RAP (2303.02)

 

209,210

 

 

 

 

 

 

 

 

 

 

 

 

Granular Backfill

(4133, 4134)

Quality

AS                               209

 

 

 

 

 

 

 

 

 

 

 

 

 

Engr. Fabric (4196)

Quality

AS                          496.01

 

 

 

 

 

 

 

 

 

 

 

 

Contractor Furnished Borrow

 

545

CONTR

IM 545

IM 545

CONTR

IM 545 & Cert

V

RCE/ CONTR

1/10 QC tests

35 lb.

 

CTRL

Test Report

Note 4
GRADE INSPECTION

Moisture Control,

(QC by Contractor)

Note 1

Proctor

 

                                    309

CONTR

1/ soil class

25 lb

CONTR

Field Book & Test Report

V (7)

 

IA (4)

CONTR/RCE

CONTR/DME

1/ 10 req’d QC tests (min. 1)(5)

1/proj.

25 lb.

 

25 lb.

RCE/

DME

CTRL

Field Book

 

Test Report

 

Moisture

 

335, 334

CONTR

1/lift/1500 ft (for max of 1300 cy) (6)

3 lb

CONTR

Field Book & Test Report

V (7)

 

IA (4)

RCE (2)

 

DME

1/ 10 req’d QC tests (min. 1)(5)

Witness 1/proj.

3 lb.

RCE

Field Book

 

Moisture & Density Control, including Special Compaction of Subgrade (2109.03C),

(QC by Contractor)

Note 1

Proctor

 

                                    309

CONTR

1/ soil class

25 lb

CONTR

Field Book & Test Report

V (7)

 

IA (4)

CONTR/RCE

CONTR/DME

1/ 10 req’d QC tests (min. 1)(5)

1/proj.

25 lb.

 

25 lb.

RCE/

DME

CTRL

Field Book

 

Test Report

 

Moisture

 

335, 334

CONTR

1/lift/1500 ft.(for max of 1300 cy) (6)

3 lb

CONTR

Field Book & Test Report

V (7)

 

IA (4)

RCE (2)

 

DME

1/ 10 req’d QC tests (min. 1)(5)

Witness 1/proj.

3 lb.

RCE

Field Book

 

In-place Density

326 & 334, ASTM D2937, D2167, D1556, & AASHTO T191 & T233

CONTR

1/lift/1500 ft (for max of 1300 cy) (6)

As req’d by test

CONTR

Field Book & Test Report

V (7)

 

IA (4)

RCE/ DME

DME

1/10 req’d QC tests (min. 1)(5)

Witness 1/proj.

 

RCE/ DME

Field Book

 

 

 

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 Materials Office

 

 

 

CONTR-Contractor

 

Note 1: When Contractor QC testing is not required in the contact documents. The RCE will perform verification testing at the frequency listed for QC.

Note 2: RCE will direct the Contractor to take a moisture sample beside the RCE verification sample location.

Note 4: For earthwork quantities of less than 50,000 Yd3, no IA will be required.

Note 5: If no QC tests are required, then no verification or independent assurance tests are required.

Note 6: If source of excavation and moisture have been consistent and within moisture control limits and density has been greater than or equal to minimum density (if required), testing of each lift will be waived. Minimum frequency will be 1 per 1300 Yd3.

Note 7:  For earthwork quantities of less than 1300 Yd3, no verification tests will be required.