eba engineering laboratory

EBA maintains and operates a laboratory that is equipped for the testing of soil, rock, aggregates, hot mix asphalt, portland cement concrete, mortar, brick, and concrete masonry units. The laboratory has been accredited by AASHTO since 1993. The AASHTO accreditation program involves regular reviews and inspections of the laboratory by the AASHTO Materials Reference Laboratory (AMRL) and the Cement and Concrete Reference Laboratory (CCRL) as well as a proficiency sample program to monitor the quality of the test results. The laboratory meets the requirements of AASHTO R-18, which provides criteria and guidelines for establishing and implementing a quality management system for materials testing laboratories. The laboratory is certified for a number of tests including the following:

Soils:

• Particle Size Analysis of Soils (ASTM D 422/AASHTO T 88)
• Shrinkage Factors of Soils (ASTM D 427)
• Laboratory Compaction Characteristics of Soil Using Standard Effort (ASTM D 698/AASHTO T 99)
• Specific Gravity of Soil (ASTM D 854/AASHTO T 100)
• Amount of Material in Soils Finer than No. 200 Sieve (ASTM D 1140)
• Laboratory Compaction Characteristics of Soil Using Modified Effort (ASTM D 1557/AASHTO T 180)
• CBR (California Bearing Ratio) of Laboratory Compacted Soils (ASTM D 1883/AASHTO T 193)
• Unconfined Compressive Strength of Cohesive Soil (ASTM D 2166/AASHTO T 208)
• Laboratory Determination of Water (Moisture) Content of Soil and Rock (ASTM D 2216/AASHTO T 265)
• One Dimensional Consolidation Properties of Soils (ASTM D 2435/AASHTO T 216)
• Unconsolidated-Undrained Triaxial Compression Test on Cohesive Soils (ASTM D 2850/AASHTO T 296)
• Density of Soil and Soil-Aggregate in Place by Nuclear Methods (ASTM D 2922)
• Water Content of Soil and Rock in Place by Nuclear Methods (ASTM D 3017)
• Liquid Limit, Plastic Limit, and Plasticity Index of Soils (ASTM D 4318/AASHTO T 89 & T 90)
• Consolidated Undrained Triaxial Compression Test for Cohesive Soils (ASTM D 4767/AASHTO T 297)
• Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter (ASTM D 5084)

Aggregates:

• Bulk Density ("Unit Weight") and Voids in Aggregate(ASTM C 29/AASHTO T 19)
• Organic Impurities in Fine Aggregates for Concrete (ASTM C 40/AASHTO T 21)
• Materials Finer than No. 200 Sieve in  Mineral Aggregates by Washing (ASTM C 117/AASHTO T 11)
• Density, Specific Gravity and Absorption of Coarse Aggregate (ASTM C 127/AASHTO T 85)
• Density, Specific Gravity and Absorption of Fine Aggregate (ASTM C 128/AASHTO T 84)
• Sieve Analysis of Fine and Coarse Aggregates (ASTM C 136/AASHTO T 27)
• Total Evaporable Moisture Content of Aggregate by Drying (ASTM C 566/AASHTO T 255)

Hot Mix Asphalt :

• Theoretical Maximum Specific Gravity and Density of Bituminous Paving Mixtures (ASTM D 2014/AASHTO T 209)
• Bulk Specific Gravity of Compacted Hot MIx Asphalt (HMA) Using Saturated Surface Dry Specimens (ASTM D 2726/AASHTO T 166)
• Percent Air Voids in Compacted Dense and Open Bituminous Paving Mixtures (ASTM D 3202/AASHTO T 269)
• Mechanical Size Analysis of Extracted Aggregate (HMA) (ASTM D 4444/AASHTO T 30)
• Asphalt Binder Content of Hot Mix Asphalt (HMA) by the Ignition Method (ASTM D 6307/AASHTO T 308)
• Density of Hot Mix Asphalt (HMA) Specimens by Means of the Superpave Gyratory Compactor (ASTM D 6925/AASHTO T 312)