Laboratory Materials Testing

A 1,500-square-foot materials testing laboratory in Bend, Oregon and mobile lab facilities assure that the Wallace Group is always fully equipped for testing soil, rock and construction materials wherever the project is located. Lab tests are performed by certified, experienced technicians in accordance with ASTM International and American Association of Highway & Transportation Officials (AASHTO) standards for soil, rock and aggregate, concrete, masonry, asphalt and fireproofing materials. Results are reviewed by senior inspectors and registered professionals.

Laboratory Materials Testing

Slump of Hydraulic Cement Concrete: C143/T119
Temperature of Freshly Mixed Hydraulic Cement Concrete: C1064/T309
Sampling Freshly Mixed Concrete: C172/T23/TM21
Air Content of Freshly Mixed Concrete: C173/T152
Compressive Strength of Cylindrical Concrete Specimens: C39/T22
Obtaining and Testing Drilled Cores and Sawed Beams of Concrete: C42/T24
Capping Cylindrical Concrete Specimens: C617/T231
Rebound Hammer (Schmidt) Testing of Hardened Concrete: C805
Floor flatness/Floor levelness (Ff/Fl) for Slabs: E1155
Moisture Vapor Emission Rate of Concrete Subfloor UsingAnhydrous Calcium Chloride: F1869
Pullout Strength of Hardened Concrete: C900
Delamination Survey: D4580

Sampling and Testing Grout: C1019
Compressive Strength of Masonry Prisms: C1314

Wallace Group maintains a rigorous internal Quality Systems Program in accordance with our nationally recognized A2LA Laboratory Accreditation, and external Quality System Diagnostic Programs, including the Cement and Concrete Reference Laboratory (CCRL) and AASHTO re:source (formerly AMRL) program. Wallace Group’s materials testing Quality System is also augmented with periodic inspections/audits by governmental and accreditation agencies, including the Oregon Department of Transportation (ODOT) and Oregon Building Officials Association (OBOA).

Wallace Group provides the following laboratory services:

Soils & Aggregates
Sampling of Aggregates: ASTM D75/T2
Unit Weight: C29/T19
Classification of Soils for Engineering Purposes: D2487
Sieve Analysis Coarse & Fine Agg (Wash or Dry): C136/T27
% Passing #200: C117/T11
Moisture Content: D2216/T265
Standard Proctor: D698/ T99/TM223
Modified Proctor: D1557/ T180/TM223
Specific Gravity Fine Agg: C128/T84
Specific Gravity Coarse Agg(Rock Correction): C127(D854)/T85(T224)
Sand Equivalent (1 pt. or 3 pt.): D2419/T176
Atterberg Limits (Liquid/Plastic Limits): D4318/(T89/T90)
LA Abrasion (Small Aggregates): C131/T96
LA Abrasion (Large Aggregates): C535/
Unconfined Compression (Rock Cores): D2166/T208
In Place Density and Water Content of Soil/Agg: D6938/T310

Fireproofing Density: E605
Standard Test Method for Cohesion/Cohesion of SFRM: E736
Standard Practice for Intumescent Coatings: E2924
Sprayed Fire-Resistive Materials (SFRM)