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Registers collected 2026-08-04 to 2026-08-05.See collection dates

ASTM C231 Accredited Testing Labs Worldwide

22 accredited laboratories in 3 countries hold ASTM C231 in their ISO/IEC 17025 scope. Primary accreditors include American Association for Laboratory Accreditation. In the register, ASTM C231 scope entries most often cover Compressive Strength, Air Content, Density in Concrete, Aggregates, Asphalt.

Total labs
22
Countries
3
Top matrix
Concrete
17 labs

Available in 3 Countries

United States
18 labs
Qatar
2 labs
Saudi Arabia
2 labs

Top matrices for ASTM C231

Top analytes for ASTM C231

  • Compressive Strength (6)
  • Air Content (4)
  • Density (3)
  • Slump (2)
  • Air Voids (1)
  • Height (1)
  • Solids (1)

Sample labs

Terradyne Engineering
Houston, TX, US

ASTM C231/C231M* Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C1064/C1064M* Temperature of Freshly Mixed Portland-Cement Concrete ASTM C1231/C1231M Unbonded Caps in Determination of Compressive Strength of Harden

Global Mozon Laboratory for calibration and Supporting Services
Yanbu, SA

ASTM C231 Tape measure, caliper & balance In-house methods GMCL-TP39 GMCL-TP53 Yanbu, Tabuk Concrete/Asphalt Core Drilling Machine – Diameter & Height Up to 300 mm 0.02 mm ASTM C42/42M

The Murillo Company
Houston, TX, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C293/C293M Flexural Strength of Concrete (Using Simple Beam With Center-Point Loading) ASTM C805/C805M1 Rebound Number of Hardened Concrete ASTM C1064

HTS, Inc. Consultants
Houston, TX, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C495/C495M Compressive Strength of Lightweight Insulating Concrete ASTM C617/C617M Capping Cylindrical Concrete Specimens ASTM C805/C805M1 Rebound Numb

International Technical Laboratory W.L.L.
Doha, QA

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method. ASTM C617/C617M Capping Cylindrical Concrete Specimens ASTM C1064/C1064M1 Temperature of Freshly Mixed Hydraulic-cement concrete BS 1881-124, Sec. 12.1 Acid S

Materials Testing & Consulting
Olympia, WA, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C617/C617M Capping Cylindrical Concrete Specimens ASTM C805/C805M1 Rebound Number of Hardened Concrete ASTM C1064/C1064M1 Temperature of Freshly Mixed

IP Concrete Testing and Inspection
Ozone Park, NY, US

ASTM C231/C231M* Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C617/C617M Capping Cylindrical Concrete Specimens ASTM C1064/C1064M* Temperature of Freshly Mixed Hydraulic-Cement Concrete ASTM C1231/C1231M Unbonde

Professional Service Industries
Tukwila, WA, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C617 Capping Cylindrical Concrete Specimens ASTM C1064/C1064M1 Temperature of Freshly Mixed Hydraulic-Cement Concrete ASTM C1231/C1231M Unbonded Caps

UES PROFESSIONAL SOLUTIONS 44
Houston, TX, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method

Fenagh Engineering and Testing
Kent, WA, US

ASTM C231* Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C617 Capping Cylindrical Concrete Specimens ASTM C1064* Temperature of Freshly Mixed Portland Cement Concrete ASTM C1231 Use of Unbonded Caps in Determination o

Fenagh
Round Rock, TX, US

ASTM C2311 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C511 Moist Cabinets ASTM C617 (700 psi and below) Capping Cylindrical Concrete Specimens ASTM C10641 Temperature of Freshly Mixed Hydraulic-Cement Concrete A

Megan, LLC dba Fairfield
Bridgeport, CT, US

ASTM C231/C231M* Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C1064/C1064M* Temperature of Freshly Mixed Hydraulic-Cement Concrete ASTM C1231/C1231M Unbonded Caps in Determination of Compressive Strength of Hardened

Doha Technical
Mesaieed, QA

ASTM C231/C231M1 Test Method for Bleeding of Concrete ASTM C232/C232M Standard Practice for Capping of Cylindrical Specimens1 Concrete ASTM C617/ C617M Test Method for Density, Absorption and Voids in Hardened Concrete ASTM C642 Test M

Earth Engineering
Houston, TX, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C1064/C1064M1 Temperature of Freshly Mixed Hydraulic-Cement Concrete ASTM C1231/C1231M Unbonded Caps in Determination of Compressive Strength of Harde

International Technical Laboratory Tabuk
Tabuk, SA

ASTM C231/C231M Air Content of Freshly Mixed Concrete by the Pressure ASTM C143/C143M Slump of Hydraulic-Cement Concrete ASTM C172/C172M Sampling Freshly Mixed Concrete ASTM C617 Capping Cylindrical Concrete Specimens ASTM C1064/C1064M

TGI Geotechnics Inc. dba TGI Engineering & Consulting
Suite U Houston, TX, US

ASTM C231/C231M Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C1064/C1064M Temperature of Freshly Mixed Hydraulic-Cement Concrete ASTM C1231/C1231M Unbonded Caps in Determination of Compressive Strength of Hardened

Otto Rosenau & Associates
Seattle, WA, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C293/C293M Flexural Strength of Concrete (Using Simple Beam with Center-Point Loading) ASTM C495 Compressive Strength of Lightweight Insulating Concrete

HRF Services
Store Front Hewlett, NY, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C617 Capping Cylindrical Concrete Specimens ASTM C1064/C1064M1 Temperature of Freshly Mixed Hydraulic-Cement Concrete ASTM C1231/C1231M Unbonded Caps i

Eustis Engineering
Houston, TX, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C617 Capping Cylindrical Concrete Specimens ASTM C1064/C1064M1 Temperature of Freshly Mixed Hydraulic-Cement Concrete ASTM C1231/C1231M Unbonded Caps i

Certerra Northwest
Bellingham, WA, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C495 Compressive Strength of Lightweight Insulating Concrete ASTM C5111 Standard Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water

Tolunay-Wong Engineers
Corpus Christi, TX, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C293/C293M Flexural Strength of Concrete (Using Simple Beam With Center-Point Loading) ASTM C617/C617M Capping Cylindrical Concrete Specimens ASTM C10

Ninyo & Moore Geotechnical & Environmental Sciences Consultants
Houston, TX, US

ASTM C231/C231M1 Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C617/C617M Capping Cylindrical Concrete Specimens ASTM C1064/C1064M1 Temperature of Freshly Mixed Hydraulic-Cement Concrete ASTM C1231/C1231M Unbonded Cap