Construction Materials Testing

From soil to concrete, we perform laboratory and field testing to verify quality, strength, performance, and compliance with the project specifications.

Laboratory Testing Img

COURTESY HUMBOLTD

Laboratory Testing
of Soils

AASHTOASTMTEST NAME
R58D421Dry Preparation of Samples
R74Wet Preparation of Soil Samples
T88D422Particle Size Analysis of Soils by Hydrometer
T89D4318Liquid Limit of Soils (Atterberg Limits)
T90D4318Plastic Limit of Soils (Atterberg Limits)
T99D698Moisture-Density (Proctor) of Soils, Standard Effort
T100D854Specific Gravity of Soils
T134D558Moisture-Density Relations of Soil-Cement Mixtures
T180D1557Moisture-Density (Proctor) of Soils, Modified Effort
T191D1556Sand Cone In-Place Density of Soils
T193D1883California Bearing Ratio
T208D2166Unconfined Compressive Strength of Soil
T215D2434Permeability of Granular Soils
T216D2435One-Dimensional Consolidation of Soils
T265D2216Moisture Content of Soils
T267D2974Organic Content in Soils by Loss on Ignition
T288Minimum Soil Resistivity
T289pH of Soils for Corrosion Testing
T290 (Method B)Determining Water-Soluble Sulfate Ion Content in Soil
T296D2850Unconsolidated, Undrained Triaxial Compression
T297D4767Consolidated, Undrained Triaxial Compression
T310D6938Nuclear Density and Moisture Gauge for Soil
T311Grain-Size Analysis of Granular Soil Materials
D1140Amount of Material Finer than a No. 200 (75-µm) Sieve
D2487 Classification of Soils (Unified System)
D2488Description and Identification of Soils (Visual-Manual)
D4643Moisture Content of Soil by Microwave Oven
D4972pH Testing of Soils
D5084Hydraulic Conductivity (Flexible Wall Permeameter)
D6913Gradation of Soils Using Sieve Analysis
D7263Density and Unit Weight of Soil
D7928Particle-Size Distribution (Gradation) of Fine-Grained Soils (Hydrometer Analysis)
G57Soil Resistivity, Wenner Four-Electrode Method
G187Soil Resistivity Using the Two-Electrode Soil Box

Laboratory Testing
of Aggregates

AASHTOASTMTEST NAME
R76C702Reducing Samples of Aggregate to Test Size
R90D75Sampling Aggregate
T11C117Material Finer Than 75-µm (No. 200) Sieve
T21C40Organic Impurities in Sands
T27C136Sieve Analysis of Aggregates
T84C128Fine Aggregate Specific Gravity and Absorption
T85C127Coarse Aggregate Specific Gravity and Absorption
T255C566Moisture Content of Aggregate by Oven Drying
sieve selector image

Field & Laboratory
Testing of Concrete

ASTMTEST NAME
C172Sampling Freshly Mixed Concrete
C231Air Content of Freshly Mixed Concrete
C143Slump Test of Concrete
C138Unit Weight and Yield of Concrete
C39Concrete Compressive Strength (Cylinders)
C78Flexural Strength of Concrete (Beams)