Sampling & Testing Guide-Minimum Frequency

SOIL AGGREGATE SUBBASE

Section 2110

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

Granular Surfacing Material (4120)

AS                  209

GRADE INSPECTION

Mixed Materials (2110)

Density (Proctor)

309

V

RCE

2/mile (min. 2/proj.)

5000 gm

RCE

Field Book

Change of Soil type requires additional Proctors

Uncompacted Mixture

Pulverization Moisture

2” Sieve Visual

V

RCE

2/mile

RCE

Field Book

Compacted Mixture (2110)

Density Thickness Width

311, 312, 334 337

V

RCE

2/mile

RCE

Field Book

Finished Subbase

Cross Section

Stringline

V

RCE

10/mile

RCE

Field Book

Template for secondary park & institutional roads

AS-Approved Source                                            Cert A-Type A Certification                               RCE-Resident Construction Engineer/Project Engineer            IA-Independent Assurance ASD-Approved Shop Drawing                            Cert C-Type C Certification                              DME-District Materials Engineer                                                    V-Verification S&T-Sampling & Testing                                      Cert D-Type D Certification                              CTRL-Central Materials Office                                                                                                                                                                                                                   CONTR-Contractor