Testing

Geotechnical & Materials Testing

Geotechnical Investigation
-Loading capability
-Footing and foundation design
-Seismic analysis
When it comes to foundations and footings, one size does not fit all. The size, shape, and purpose of the project are not the only factors that determine the qualities of the foundation. The soil underneath the project is also integral to reaching a proper and safe foundation and footing design. When this is needed, a WPES, Inc. engineer makes a visit to your site to dig material test pits and collect soil samples. Our engineers have many projects' worth of experience analyzing the soil layers found in the Columbia Basin.

Typically, samples of specific soil strata are gathered and returned to our in-house materials testing facility to be analyzed. From this information, the loading capability of the ground at any site can be determined and the footings can then be appropriately designed for your specific situation.

Concrete Testing
WPES, inc. staff are well-trained and experienced in concrete testing and adhere to ACI and ASTM standards. Our personnel and in-house laboratory are fully outfitted with the necessary equipment to accurately perform all stages of concrete testing. Most commonly, we take field slump and air pressure tests, and cast cylinders to be returned to the laboratory. These cylinders are then stored in our temperature-monitored water-curing tank until they are due to be strength tested with a large hydraulic press.

We are also pleased to offer independent laboratory testing of your concrete cylinders.

Asphalt Testing
WPES, Inc. can handle a variety of asphalt testing needs. Our laboratory is equipped to perform density testing for asphalt in several different ways. We typically use the rice method and coring method to find asphalt density. In addition, we also do asphalt oil content measurement and aggregate material gradation testing.

Sieve Analysis
A sieve analysis is a very common lab test. By doing a sieve analysis on nearly any earth material sample, our staff can determine the sizes of material that exist in the sample and therefore what types of material are present in the sample. This is an important first step when analyzing material at any job site.

We also offer aggregate crush specification testing.

Compaction Testing
Often during design of a project, an engineer will specify a level of compaction that is required beneath footings and foundations. Our lab technicians are capable of running proctor tests and analyzing results to determine what compaction density is required. Western Pacific has several staff members who are certified and experienced in safely completing compaction tests on-site using the nuclear densometer method after density requirements are known, based on proctor testing results that are derived in our laboratory facility.

Commercial and Industrial Inspection
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Moisture Content Measurement
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Fractured Face Counts
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