Frank H. Lehr Associates
Consulting Civil Engineers
101 South Harrison Street
East Orange, NJ  07018
Tele: 973/673-2520

Testing

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Frank H. Lehr Associates provides quality assurance and quality control testing during construction for: 

Asphalt 

Concrete 

Earthwork 

Piles 

 

Asphalt:

Our asphalt testing services include monitoring of paving operations in both the plant and the field. We can provide certified FAA or NJDOT inspectors, for your paving project. 
bulletPlant
bulletVerification of Job Mix Formula 
bulletMarshall Plugs (Air Voids, Bulk Specific Gravity, 
Maximum Specific Gravity, Stability, and Flow) 
bulletExtraction Tests 
bulletFAA Acceptance Testing
bulletField: Monitoring Surface Preparation, Subgrade Inspection 
bulletMix Placement including laydown temperature, mat thickness, 
and yield 
bulletCompaction Testing - Nuclear Gauge 
bulletAcceptance Testing 
bulletCoring 

Concrete:

bulletMonitoring Concrete Placement 
bulletSampling and Testing - Slump, Air Content, Cylinders 
bulletReinforcing Steel Placement 
bulletSwiss Hammer Testing 
bulletWindsor Probe Testing 
bulletCoring 

Earthwork:

Laboratory Testing: 
bulletIdentification and Classification
bulletAtterberg Limits 
bulletCalifornia Bearing Ratio 
bulletConsolidation 
bulletPermeability 
bulletUnconfined Compression 
bulletGrain Size Analysis 
bulletMoisture - Density Relations (Proctor Test) 
Field Testing: 
bulletMonitoring of Controlled Compacted Fill Operations
bulletFooting Bottom Inspection 
bulletSubgrade Inspections 
bulletField Density Testing 

Piles:

bulletPile Load Tests 
bulletPile Driving Inspection