Material TEC

Part 1 of 4

(A2LA Cert. No. 7862.01) 08/04/2026 Page 1 of 3 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 MATERIAL TEC 80 Boulder Brook Circle Lawrenceville, GA 30045 Dean Roosa Phone: 678-2948780 Valid To: July 31, 2028 Certificate Number: 7862.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory for: CONSTRUCTION MATERIALS ENGINEERING ASTM: C1077 (Standard Practice for Agencies Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Testing Agency Evaluation); C1222 (Evaluation of Laboratories Testing Hydraulic Cement); E329 (Standard Specification for Agencies Engaged in Construction Inspection, Testing, or Special Inspection) CONSTRUCTION MATERIALS TESTING Test Method: Test Description: Aggregate: ASTM C29/C29M Standard Test Method for Bulk Density (“Unit Weight”) and Voids in Aggregate ASTM C40 Standard Test Method for Organic Impurities in Fine Aggregates for Concrete ASTM C87 Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar ASTM C88 Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate ASTM C117 Standard Test Method for Materials Finer than 75-μm (No. 200) Sieve in Mineral Aggregates by Washing ASTM C123 Standard Test Method for Lightweight Particles in Aggregate ASTM C127 Standard Test Method for Relative Density (Specific Gravity) and Absorption of Coarse Aggregate ASTM C128 Standard Test Method for Relative Density (Specific Gravity) and Absorption of Fine Aggregate ASTM C131 Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine ASTM C136 Standard Test Method for Sieve Analysis of Fine and Coarse Aggregate ASTM C142/C142M Standard Test Method for Clay Lumps and Friable Particles in Aggregates ASTM C231 Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C535 Standard Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine ASTM C566 Standard Test Method for Total Evaporable Moisture Content of Aggregate by Drying

Part 2 of 4

(A2LA Cert. No. 7862.01) 08/04/2026 Page 2 of 3 Test Method: Test Description: ASTM C1260 Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar- Bar Method) ASTM C1293 Standard Test Method for Determination of Length Change of Concrete Due to Alkali-Silica Reaction ASTM C1567 Standard Test Method for Determining the Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials and Aggregate (Accelerated Mortar- Bar Method) ASTM D4791 Standard Test Method for Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate Cement: ASTM C109 Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 50 mm [2 in.] Cube Specimens) ASTM C114 Standard Test Methods for Chemical Analysis of Hydraulic Cement ASTM C151 Standard Test Method for Autoclave Expansion of Hydraulic Cement ASTM C183 Standard Practice for Sampling and the Amount of Testing of Hydraulic Cement ASTM C185 Standard Test Method for Air Content of Hydraulic Cement Mortar ASTM C187 Standard Test Method for Amount of Water Required for Normal Consistency of Hydraulic Cement Paste ASTM C188 Standard Test Method for Density of Hydraulic Cement ASTM C191 Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle ASTM C204 Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus ASTM C266 Time of Setting of Hydraulic-Cement Paste by Gillmore Needles ASTM C305 Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency ASTM C311 Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete ASTM C430 Standard Test Method for Fineness of Hydraulic Cement by the 45-um (No. 325) Sieve ASTM C441 Standard Test Method for Effectiveness of Pozzolans or Ground Blast-Furnace Slag in Preventing Excessive Expansion of Concrete Due to the Alkali-Silica Reaction ASTM C451 Standard Test Method for Early Stiffening of Hydraulic Cement (Paste Method) ASTM C452 Standard Test Method for Potential Expansion of Portland-Cement Mortars Exposed to Sulfate ASTM C596 Standard Test Method for Drying Shrinkage of Mortar Containing Hydraulic Cement ASTM C1012 Standard Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution ASTM C1038 Standard Test Method for Expansion of Hydraulic Cement Mortar Bars Stored in Water ASTM C1437 Standard Test Method for Flow of Hydraulic Cement Mortar ASTM C1506 Standard Test Method for Water Retention of Hydraulic Cement-Based Mortars and Plasters

Part 3 of 4

(A2LA Cert. No. 7862.01) 08/04/2026 Page 3 of 3 Test Method: Test Description: ASTM C1702 Standard Test Method for Measurement of Heat of Hydration of Hydraulic Cementitious Materials Using Isothermal Conduction Calorimetry Concrete: ASTM C31 Standard Practice for Making and Curing Concrete Test Specimens in the Field ASTM C39 Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens ASTM C78 Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading) ASTM C138 Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete ASTM C143 Standard Test Method for Slump of Hydraulic-Cement Concrete ASTM C157 Standard Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete ASTM C172 Standard Practice for Sampling Freshly Mixed Concrete ASTM C192 Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory ASTM C231 Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method ASTM C403 Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance ASTM C469 Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression ASTM C617 Standard Practice for Capping Cylindrical Concrete Specimens ASTM C666 Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing ASTM C1064 Standard Test Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete ASTM C1609 Standard Test Method for Flexural Performance of Fiber-Reinforced Concrete (Using Beam with Third-Point Loading) ASTM C1611 Standard Test Method for Slump Flow of Self-Consolidating Concrete Specifications referenced below apply to specification-related testing performed under the listed scope methods only: C511 (Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes) ASTM C33 (Standard Specification for Concrete Aggregates ASTM C144 (Standard Specification for Aggregate for Masonry Mortar ASTM C150 (Standard Specification for Portland Cement) ASTM C595 (Standard Specification for Blended Hydraulic Cements) ASTM C618 (Standard Specification for Coal Ash and Raw or Calcined Natural Pozzolan for Use in Concrete) ASTM C1866 (Standard Specification for Ground-Glass Pozzolan for Use in Concrete) ASTM C1945 (Standard Specification for Natural Pozzolan for Use in Concrete)