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Geotechnical
Services |
The MTL utilizes a CME 55 drill rig to provide both
pavement design services and subsurface investigations
up to 150’ below the existing grade. The drill
rig is capable of penetrating Portland cement concrete,
asphalt concrete, soils, aggregates, and native rock
formations. The MTL also utilizes a Dynaflect machine
and a state-of-the-art Falling Weight Deflectometer
(FWD) for non-destructive pavement deflection testing
and evaluation. Both methods are used to create pavement
overlay designs, maintenance strategies, and rehabilitation
recommendations in accordance with Caltrans procedures.
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In
the Field:
• USA Clearance
• Traffic Control
• Field Drilling/Sampling
• Existing Pavement Assessment
• Dynaflect Analysis
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In
the Lab:
• R-value (Strength) Tests
on Soil
• Atterberg Limits
• Sieve Analysis
• Moisture/Density
• Torvane Shear Test
• Penetration Test
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In
the Office:
• Pavement Designs
• Rehabilitation
Recommendations
• R-value Data Research
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Department
of Public Works - Engineering and Construction Services
Division
Materials Testing Laboratory
1661 Senter Road, Building A, First Floor
San José, CA 95112
tel. (408) 975-7330 fax (408) 971-4880 |
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