Geology

Materials Testing & Inspections

Construction Inspection

Adequacy of top-soil removal,      clearing and grubbing

Structural Steel & Welding Inspection

Footing Inspection

Rebar Inspection

High-Strength Bolt Inspection

Moisture Testing

Special Inspections

Nuclear density testing of structural fill and backfill

Analysis for detection and mapping of heavy metals and other anomalies

Quality Control

Concrete & Masonry Inspection

Epoxy Inspection

Shear Wall Nailing Inspection

Geotechnical Investigations

Soils & Earthwork

Soil conditions are extremely important to the successful completion of a project. NTI’s geotechnical staff is capable of evaluating existing soil conditions and making recommendations for solving specific site problems.

Determination of bearing capacity for foundations

Foundation Recommendations

Exploratory Borings

Test Pits

Drainage

Geologic site reconnaissance & mapping

Bluff Stability

Soil Sampling & Testing

Moisture Control

Materials Testing

NTI maintains the only full-time construction materials testing laboratory on the North Olympic Peninsula. Soil compaction, sieve analysis, concrete compressive strength, and other construction related quality control and performance tests are available.

Concrete & Masonry Testing

Compression Testing                                                          Unit Weight & Yield

Soils & Aggregates

Atterberg Limits

Natural Moisture Content

Moisture Density Relationship (Proctor Testing)

Top of Page

Sieve Analysis

Sand Equivalent

Clay Percent (Hydrometer)

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