Materials Testing

R&M has been providing materials testing services since 1970. We maintain excellent relationships with contractors and owners throughout Alaska and have a reputation for quality, integrity and professionalism. R&M’s Materials Laboratory received accreditation from the American Association of State Highway Transportation (AASHTO) and certification from the U.S. Army Corps of Engineers (USACE) many years ago. The AASHTO and USACE programs are the premier accreditation programs for construction materials testing in the country. R&M takes pride in the variety of tests we are certified to perform and realize that excellence only comes through investing in our team. We are committed to the continuing advancement and improvement of our personnel and facilities to maintain our position as the leading materials testing firm in Alaska.

Vice President - Materials Lab and Special Inspection

Mike Wariner, PE

read Mike's bio

Mike joined the R&M team in January 2011, and currently serves as Vice President: Materials Laboratory and Special Inspection. His construction background extends for more than 20 years, over which he has served in a variety of positions of increasing responsibility from laborer up to manager of a special inspection and materials laboratory team. Mike’s field testing and observation experience includes soil testing, drilled pier/driven pile observation, concrete testing, structural masonry testing and observation, asphalt testing, post-tension cable placement and elongation observation, fireproofing observation and testing, chemically stabilized subgrade observation and testing, open hole observation, and reinforcing steel observation. He holds a B.S. in Civil Engineering from the Colorado School of Mines, is WAQTC qualified in aggregate, asphalt, embankment and base, density, and sampling, and holds several other inspection and testing-related certifications.

In 2012, R&M was awarded a second consecutive term agreement to provide sampling and testing of soils, aggregate, asphalt and concrete on Alaska Department of Transportation & Public Facilities projects. Over the two terms of this contract to date, R&M has provided sampling and testing services on nearly 80 projects, including airports, roadways, bridges, and utilities.
R&M provided materials testing services for construction of a new bridge. Testing includes aggregate and soils for particle size distribution, moisture/density relationships, and field density with oversize correction. For concrete, we provided source, including aggregate quality, moisture and gradation, fresh concrete for slump, temperature, air content, unit weight, and yield calculations, as well as compressive strength on samples cast on site during the pour. Asphalt testing included developing the AC mix design utilizing the marshal method and testing for maximum bulk specific gravity, flow, stability, percent voids and percent voids filled, as well as theoretical maximum specific gravity and field densities by nuclear and core methods.
In support of construction inspection performed by our in-house inspectors, R&M was responsible for soils and concrete testing. Field testing on soils included compaction density testing with oversize correction and soils sampling. We tested soils material in the field with a nuclear density gauge. Lab testing included gradations, proctors, hydrometers, coarse specific gravity and moistures. Concrete field testing included sampling, temperature, slump, unit weight, air content, and casting of concrete cylinders. Laboratory testing included compressive strength of the concrete cylinders.