Geotechnical and Material Engineering

Rii has been engaged in geotechnical and material engineering and laboratory testing services since 1973. Our vast project experience includes subsurface investigations for municipal, transportation and commercial development projects. Additionally, we have provided geotechnical expertise to local, state and federal projects involving design of deep foundations, slope remediation, retaining walls, tunneling systems, and pavements.

Our Equipment

Our in-house fleet of drilling vehicles includes both truck- and ATV-mounted rigs. We also possess specialized equipment for performing in-situ pavement and subgrade evaluations. This includes the Automated Dynamic Cone Penetrometer (ADCP), which determines in-situ strength and thickness of soils, unbound granular base and subbase layers and subgrades; and the Lightweight Deflectometer (LWD), which determines the elastic modulus of the pavement structure.

Our Soil and Material Testing Laboratories

Rii operates and maintains ASTM and AASHTO-accredited soil and material testing laboratories throughout the state of Ohio, as well as mobile laboratory locations. Our fully equipped corporate laboratory has been validated by the US Army Corps of Engineers and is capable of handling most ASTM and AASHTO testing of soil, aggregate, Portland cement concrete, hot mix asphalt and masonry. Classification, strength, compressibility, permeability and California bearing ratio tests are routinely performed.

Our Soil and Material Testing Laboratories

Rii operates and maintains ASTM and AASHTO-accredited soil and material testing laboratories throughout the state of Ohio, as well as mobile laboratory locations. Our corporate office laboratory facility has been validated by the US Army Corps of Engineers and is a fully equipped laboratory capable of handling most ASTM and AASHTO testing of soil, aggregate, Portland cement concrete, hot mix asphalt and masonry. Classification, strength, compressibility, permeability and California bearing ratio tests are routinely performed.

Our Qualifications

Rii is prequalified with the Ohio DOT and Indiana DOT for the following services:

Geotechnical Engineering Services

Geotechnical Testing Laboratory

Geotechnical Field Exploration

Geotechnical Drilling Exploration

Read More

Geotechnical and Material Engineering Services

Soil and Rock Drilling

Laboratory Classification and Specialty Testing of Soil and Rock

Design of Mechanical Slope Retention Systems

Geophysical Investigations

Geotechnical Instrumentation Installation and Monitoring

Bearing Capacity and Settlement Analysis of Shallow and Deep Foundation Systems

Retaining Wall, Sheet Piling and Anchor System design

Hydrogeological Studies

In-situ Soil and Rock Testing for Tunneling Systems

Slope Stability and Seepage Analysis

Pavement Design

Dewatering Planning Development

Related Projects