Local In-House Laboratory Testing
Christian Wheeler Engineering maintains a complete in-house testing laboratory and performs standard testing procedures for soils, concrete, masonry, steel, asphalt, fireproofing, and other materials used in construction. Our laboratory is routinely inspected and accepted by the State of California (Division of the State Architect, DSA – LEA #183); certified as a testing laboratory by the City of San Diego; and qualified by the State of California Department of Transportation (CalTrans). In addition, we voluntarily participate in an international laboratory quality assurance program that uses the third-party laboratory inspection services of the Cement and Concrete Reference Laboratory (CCRL). The DSA and AASHTO accreditations as well as the voluntary CCRL program include laboratory assessments to verify that proper procedures are being applied in the testing and reporting process.
The following list are tests most commonly provided by Christian Wheeler Engineering.
Aggregate Laboratory Testing
- Aggregate Cleanness Value (Cal Test 227)
- Aggregate Durability Index (ASTM D3744)
- Aggregate Clay Lumps & Friable Particles (ASTM C142)
- Aggregate Specific Gravity/Absorption (ASTM C127 & C128)
- Aggregate Crushed Pieces (ASTM D693)
- Aggregate Flat & Elongated (ASTM D4791)
- Aggregate Lightweight Pieces (ASTM C123)
- Aggregate Los Angeles Abrasion (ASTM C131)
- Aggregate Soundness by Sodium Sulfate (ASTM C88)
Asphalt Concrete Laboratory Testing
- Asphalt Concrete Bitumen Content (ASTM D6307)
- Asphalt Concrete Maximum Unit Weight, (Cal Test 308)
- Asphalt Concrete Max. Theoretical Unit Wt. (ASTM D2041)
- Asphalt Concrete Stabilometer “S” value (ASTM D1560)
- Asphalt Concrete Hveem Density (ASTM D1561/D2726)
Soil Laboratory Testing
- Soil Consolidation (ASTM D2435)
- Soil California Bearing Ratio (ASTM D1883)
- Soil Direct Shear (ASTM D3080)
- Soil Expansion Index (ASTM D4829)
- Soil Gradation, Washed (ASTM D422)
- Soil Hydrometer Analysis (ASTM D422)
- Soil Natural Density, Chunks (ASTM D1188)
- Soil Natural Density, Rings (ASTM C2437)
- Soil Plastic Index (ASTM D424)
- Soil Resistance Value (Cal Test 301)
- Soil Sand Equivalent (Cal Test 217)
- Soil Soluble Sulfate Content (Cal Test 417)
- Soil Chloride Content (Cal Test 422)
- Soil pH and Resistivity (Cal Test 643)
- Soil Maximum Density/Optimum Moisture (ASTM D1557)
Steel Laboratory Testing
- High-Strength Bolt Rockwell Hardness (ASTM E18)
- High-Strength Bolt Tensile Strength (ASTM F606)
- Reinforcing Steel Bend Test (ASTM E290)
- Reinforcing Steel Tensile Strength (ASTM A370)
Concrete, Masonry, and Shotcrete Laboratory Testing
- Concrete Compressive Strength (ASTM C39)
- Concrete Air Dry/Oven Dry Unit Weight (ASTM C567)
- Concrete Drying Shrinkage (ASTM C157)
- Concrete Flexural Strength (ASTM C78)
- Concrete Modulus of Elasticity (ASTMC469)
- Concrete Trial Batch Testing (ASTM C192)
- Concrete Masonry Unit Compressive Strength (ASTM C140)
- Grout Compressive Strength (ASTM C1019)
- Masonry Prism Compressive Strength, 8” (ASTM E447)
Spray-Applied Fireproofing Laboratory Testing
- Fireproofing Density (ASTM E605)
