Accredited Materials Testing Laboratory
Concrete Research & Testing is AASHTO accredited as both a Concrete Testing Laboratory and an Aggregate Testing Laboratory. CRT is capable of performing most standard ASTM tests involving concrete, aggregate, mortar or cementitious material. Limited testing per AASHTO specification is also available. Our laboratory technicians are certified through the American Concrete Institute (ACI) as Concrete Field Testing Technicians and Concrete Laboratory Testing Technicians. CRT technicians are also certified through the Ohio Ready Mix Concrete Association (ORMCA) as Concrete Technicians.
ASTM & AASHTO Tests performed by CRT
CONCRETE
ASTM C 39 Compressive Strength of Cylindrical Concrete Specimens
ASTM C 42 Obtaining and Testing Drilled Cores and Sawed Beams of Concrete
ASTM C 78 Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)
ASTM C 157 Length Change of Hardened Hydraulic-Cement Mortar and Concrete
ASTM C 293 Flexural Strength of Concrete (Using Simple Beam With Center-Point Loading)
ASTM C 341 Length Change of Drilled or Sawed Specimens of Hydraulic-Cement Mortar and Concrete
ASTM C 457 Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete
ASTM C 496 Splitting Tensile Strength of Cylindrical Concrete Specimens
ASTM C 617 Capping Cylindrical Concrete Specimens
ASTM C 642 Specific Gravity Absorption and Voids in Hardened Concrete
ASTM C 672 Scaling Resistance of Concrete Surfaces Exposed to Deicing Chemicals
ASTM C 805 Rebound Number of Hardened Concrete
ASTM C 856 Petrographic Examination of Hardened Concrete
ASTM C 878 Restrained Expansion of Shrinkage-Compensating Concrete
ASTM C 1152 Acid-Soluble Chloride in Mortar and Concrete
ASTM C 1202 Electrical Indication of Concrete’s Ability to Resist Chloride Ion Penetration
ASTM C 1218 Water-Soluble Chloride in Mortar and Concrete
ASTM C 1293 Length Change of Concrete Due to Alkali-Silica Reaction
ASTM C 1556 Apparent Chloride Diffusion Coefficient of Cementitious Mixtures by Bulk Diffusion
ASTM C 1585 Meausrement of Rate of Absorpotion of Water by Hydraulic-Cement Concretes
CEMENTS AND MORTARS
ASTM C 109 Compressive Strength of Hydraulic Cement Mortars (Using 2 in. Cube Specimens)
ASTM C 185 Air Content of Hydraulic Cement Mortar
ASTM C 187 Normal Consistency of Hydraulic Cement
ASTM C 191 Time of Setting of Hydraulic Cement by Vicat Needle
ASTM C 452 Potential Expansion of Portland-Cement Mortars Exposed to Sulfate
ASTM C 596 Drying Shrinkage of Mortars Containing Portland Cement
ASTM C 806 Restrained Expansion of Expansive Cement Mortars
ASTM C 1012 Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution
ASTM C 1038 Expansion of Portland Cement Mortar Bars Stored in Water
FRESH CONCRETE
ASTM C 31 Making and Curing Concrete Test Specimens in the Field
ASTM C 138 Unit Weight, Yield, and Air Content (Gravimetric) of Concrete
ASTM C 143 Slump of Hydraulic Cement Concrete
ASTM C 173 Air Content of Freshly Mixed Concrete by the Volumetric Method
ASTM C 192 Making and Curing Concrete Specimens
ASTM C 231 Air Content of Freshly Mixed Concrete by the Pressure Method
ASTM C 232 Bleeding of Concrete
ASTM C 403 Time of Setting of Concrete Mixtures by Penetration Resistance
AGGREGATES
ASTM C 29 Unit Weight and Voids in Aggregate
ASTM C 40 Organic Impurities in Fine Aggregates for Concrete
ASTM C 70 Surface Moisture in Fine Aggregate
ASTM C 88 Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate
ASTM C 117 Materials Finer than No. 200 Sieve in Mineral Aggregates by Washing
ASTM C 127 Specific Gravity and Absorption of Coarse Aggregate
ASTM C 128 Specific Gravity and Absorption of Fine Aggregate
ASTM C 136 Sieve Analysis of Fine and Coarse Aggregate
ASTM C 142 Clay Lumps and Friable Particles in Aggregates
ASTM C 227 Potential Alkali Reactivity of Cement-Aggregate Combinations (Mortar-Bar Method)
ASTM C 295 Petrographic Examination of Aggregates for Concrete
ASTM C 566 Total Moisture Content of Aggregates by Drying
ASTM C 586 Potential Alkali Reactivity of Carbonate Rocks as Concrete Aggregates (Rock-Cylinder Method)
ASTM C 1105 Length Change of Concrete Due to Alkali-Carbonate Rock Reaction
ASTM C 1252 Uncompacted Void Content of Fine Aggregate
ASTM C 1260 Potential Alkali Reactivity of Aggregates (Mortar-Bar Method)
ASTM C 1293 Length Change of Concrete Due to Alkali-Silica Reaction
ASTM C 1567 Potential Alkali Reactivity of Combinations of Cementitious Materials and Aggregates
ASTM D 3042 Insoluble Residue in Carbonate Aggregates
AASHTO TESTS PERFORMED BY CRT