GEOTECHNICS ACCREDITATIONS


PITTSBURGH FACILITY

The American Association of State Highway and Transportation Officials (AASHTO) established the AASHTO Accreditation Program (AAP) in 1998. The objective of AAP is to provide a mechanism for formally recognizing the competency of testing laboratories to perform specific tests. The AAP utilizes both laboratory assessment and proficiency sample services provided by the AASHTO Materials Reference Laboratory (AMRL).

Geotechnics has participated in the AMRL laboratory assessment and proficiency sample programs for soil and aggregates every year since 1996.

Quality Management System – accredited since 8/1/1996
R18, C1077 (Aggregate), C1077 (Concrete), D3740 (Soil), E329 (Aggregate), E329 (Concrete)

 Soil – accredited since 8/1/1996
T88, T89, T90, T99, T100, T180, T193, T208, T215, T216, T224, T236, T265, T296, T297, D422, D698, D854, D1557, D1883, D2166, D2216, D2434, D2435, D2850, D3080, D4318, D4718, D4767, D5084, D5731, D7012

Aggregate accredited since 9/1/1998
C40, C117, C127, C128, C131, C136, C535, C566, C702

Concrete – accredited since 1/25/2007
C31 (Cylinders), C39, C138, C143, C172, C231, C511, C942 (Pre-Mixed), C1064, C1231 (7000 psi and below)

AASHTO

Do you need a handy guide to all our tests and methods with numbers? We have one here.


Gai-lap badge

The Geosynthetic Accreditation Institute-Laboratory Accreditation Program (GAI-LAP) is a test-by-test accreditation program based on site audits and annual proficiency tests. The program is intended to insure that the specific laboratory is capable of properly rendering the tests that they contract to perform. The essence of the program is to accredit geosynthetic testing laboratories for performing consensus standardized test methods insofar as equipment, documentation and testing protocol is concerned.

  • ASTM D374 – Thickness
  • ASTM D413 – Adhesion
  • ASTM D751 – Thickness
  • ASTM D751 – Tongue Tear
  • ASTM D751 – Grab
  • ASTM D751 – Seam Strength
  • ASTM D792 – Specific Gravity
  • ASTM D882 – Strip Tensile
  • ASTM D1004 – 90 Tear
  • ASTM D1204 – Dimensional Change
  • ASTM D1238 – Melt FLow
  • ASTM D1505 – Density Gradient
  • ASTM D1593 – PVC Thickness
  • ASTM D1603 – Carbon Black Content (Tube)
  • ASTM D3786 – Mullen Burst
  • ASTM D4218 – Carbon Black Content (Muffle)
  • ASTM D4491 – Permittivity
  • ASTM D4533 – Trap Tear
  • ASTM D4595 – Geotextile Wide Width
  • ASTM D4632 – Geotextile Grab
  • ASTM D4716 – Transmissivity
  • ASTM D4751 – A.O.S.
  • ASTM D4833 – Index Puncture
  • ASTM D4884 – Geotextile Sewn Seam
  • ASTM D4885 – GM Wide Width Tensile
  • ASTM D5035 – Strip Tensile
  • ASTM D5199 – Thickness
  • ASTM D5261 – Mass/Unit Area
  • ASTM D5321 – Direct Shear
  • ASTM D5323 – 2% Secant Modulus
  • ASTM D5596 – CB Dispersion
  • ASTM D5884 – R-GM Tear
  • ASTM D5887 – GCL Flux
  • ASTM D5890 – GCL Swell
  • ASTM D5891 – GCL Fluid Loss
  • ASTM D5993 – GCL Mass
  • ASTM D5994 – Textured GM Thickness
  • ASTM D6214 – Chemical Peel & Shear
  • ASTM D6241 – CBR Puncture
  • ASTM D6243 – GCL Direct Shear
  • ASTM D6364 – Short Term Compression
  • ASTM D6392 – Shear Peel
  • ASTM D6496 – GCL Direct Shear
  • ASTM D6636 – Ply Adhesion
  • ASTM D6693 – Tensile Properties
  • ASTM D6766 – Hydraulic Properties of GCL’s
  • ASTM D6768 – Tensile Strength of GCL’s
  • ASTM D7003 – Strip Tensile Properties of Reinforced Geomembranes
  • ASTM D7004 – Grab Tensile Properties of Reinforced Geomembranes
  • ASTM D7005 – Bond Strength of Geocomposites
  • ASTM D7179 – GeoNet Breaking Force
  • ASTM D7466 – Asperity of Textured Geomembranes
  • ASTM F904 – Ply Bond Strength

Do you need a handy guide to all our tests and methods with numbers? We have one here.


The United States Army Corps of Engineers (USACOE) conducts on-site and desk audits in order to qualify laboratories to conduct material tests for Corps projects. Geotechnics has been on-site and desk audited by representatives of the USACOE since 1990. The Corps uses ASTM practices and standards in it’s assessment of laboratories. The following is a list of ASTM practices and standards for which Geotechnics is currently accredited by the USACOE.

Quality Management System: ASTM R18, C1077 (Aggregate), C1077 (Concrete), D3740 (Soil), E329 (Aggregate), E329 (Concrete)

Soils: ASTM D422, D698, D854, D1557, D1883, D2166, D2216, D2434, D2435, D2850, D3080, D3740, D4318, D4767, D5084,

Rock: ASTM D5731, D7012

Aggregates: ASTM C40, C117, C127, C128, C131, C136, C535, C566, C702

Concrete: ASTM C31, C39, C138, C143, C172, C231, C511, C1064, C1231

US army corps badge

Do you need a handy guide to all our tests and methods with numbers? We have one here.


RALEIGH FACILITY

The American Association of State Highway and Transportation Officials (AASHTO) established the AASHTO Accreditation Program (AAP) in 1998. The objective of AAP is to provide a mechanism for formally recognizing the competency of testing laboratories to perform specific tests. The AAP utilizes both laboratory assessment and proficiency sample services provided by the AASHTO Materials Reference Laboratory (AMRL).

Geotechnics has participated in the AMRL laboratory assessment and proficiency sample programs for soil and aggregates every year since 1996.

Quality Management System – accredited since 1/10/2003
R18, D3740 (Soil)

Soil – accredited since 1/10/2003
T88, T89, T90, T99, T100, T134, T180, T193, T208, T216, T236, T265, T296, T297, T310, D422, D558, D698, D1140, D1557, D1883, D2166, D2216, D2435, D2487, D2850, D3080, D4318, D4546, D4718, D4767, D5084, D6913, D6938

Aggregate – accredited since 1/10/2003
T27, C136

AASHTO

NASHVILLE FACILITY

The American Association of State Highway and Transportation Officials (AASHTO) established the AASHTO Accreditation Program (AAP) in 1998. The objective of AAP is to provide a mechanism for formally recognizing the competency of testing laboratories to perform specific tests. The AAP utilizes both laboratory assessment and proficiency sample services provided by the AASHTO Materials Reference Laboratory (AMRL).

Geotechnics has participated in the AMRL laboratory assessment and proficiency sample programs for soil and aggregates every year since 1996.

Quality Management System – accredited since 7/11/2017
R18

Soil – accredited since 7/11/2017
T88, T89, T90, T99, T100, T180, T193, T208, T216, T236, T265, T296, T297, T310, D422, D558, D698, D854, D1140, D1557, D1883, D2166, D2216, D2435, D2487, D2850, D3080, D4318, D4546, D4718, D4767, D5084, D6913, D6938, D7012

Aggregate – accredited since 7/11/2017
T11, T27, T85, C117, C127, C136

AASHTO

NQA badge

The Geotechnics testing laboratory is recognized as being in compliance with NQA-1-1994 Edition Quality Assurance Requirements for Nuclear Facility Applications. We are pleased that our quality system meets NQA-1 requirements and our Quality Manual has been revised to reflect the new procedures we’ve instituted.