L&G Engineering Laboratory's Engineers and staff are Pre-certified by the Texas Department of Transportation, Certified by the Texas Asphalt Pavement Association, the American Concrete Institute & the Post Tension Institute to perform work in several types of projects.

Construction Materials Field Testing & Inspection is performed in accordance with TXDOT's Manual of Testing Procedures, the American Concrete Institute, the American Society for Testing & Materials and the Post Tension Institute. All Sampling, Testing and Inspection will be performed or supervised by experienced & certified personnel. Field technicians are equipped with the tools necessary to accomplish testing in the field. Our technicians are dispatched from our corporate office using a state of the art dispatch system, which is compatible with the smart phones issued to our technicians. This allows our firm to dispatch to any location within the Rio Grande Valley as well as areas beyond. Our firm is experienced in the construction & inspection of roadways & building foundations. In addition, our management staff has an open line of communication with our technicians in the field to ensure that we provide accurate & efficient service to our clients.

 

Texas Department of Transportation Test Procedures

Tex-415-A "Slump of Portland Cement Concrete"

• Tex-416-A "Air Content of Concrete by the Pressure Method"
• Tex-447-A "Making and Curing Concrete Test Specimens"
• Tex-418-A "Compressive Strength of Cylindrical Specimens"
• Tex-424-A "Obtaining and Testing Drilled Cores of Concrete"
• Tex-472-A "Uniformity of Concrete"
• Tex-101-E "Surveying and Sampling Soils for Highways"
• Tex-115-E "Field Density Test (Nuclear)"
• Tex-400-A "Sampling Stone, Gravel, and Mineral Aggregates"
• Tex-417-A "Unit Weight, Yield, Air Content of Concrete"
• Tex-222-F "Sampling Bituminous Mixtures"

 

American Concrete Institute Test Procedures

• ASTM C1064 "Temperature of Freshly Mixed Hydraulic-Cement Concrete"
• ASTM C172 "Sampling Freshly Mixed Concrete"
• ASTM C143 "Slump of Hydraulic-Cement Concrete"
• ASTM C138 "Unit Weight, Yield, and Air Content (Gravimetric) of Concrete"
• ASTM C231 "Air Content of Freshly Mixed Concrete by the Pressure Method"
• ASTM C173 "Air Content of Freshly Mixed Concrete by the Volumetric Method"
• ASTM C31 "Making and Curing Concrete Test Specimens in the Field"

 

Certifications:

Texas Hot Mix Asphalt Pavement Association

• Hot Mix Asphalt Plant Production Spcecialist Level IA
• Hot Mix Asphalt Roadway Specialist Level IB
• Hot Mix Asphalt Mix Design Specialist Level II
• Soil Specialist SB101, 102, 103, 201, & 202

The Post Tension Institute

• Field Fundamentals Level I

The American Concrete Institute

• Concrete Field Testing Technician Grade I

 

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