Resources for Civil & Geotechnical Engineers in St. Louis

What We Need to Price Stabilization

• Geotechnical report for the site
• Plasticity index (PI) and boring data
• Specified treatment depth and strength targets
• Plan sheets showing the areas to be treated
• Quantities (square yards or area to stabilize)

Send what you have through the form below. If something is missing, we will tell you what else we need.

Who Does What

• Engineer of record and lab mix design: govern the additive type, application rate, treatment depth and strength targets.
• Owner's testing agency: performs QC testing in the field.
• St. Louis Soil Stabilization: spreads, mixes and compacts to the specified design and depth.

Stabilize vs. Undercut

The right choice depends on site soils, schedule and the geotechnical recommendation. See also construction value engineering, or run a conceptual comparison with the stabilization vs. undercut calculator.

Lime vs. Cement: General Guidance

• Lime is generally used for higher-plasticity clays, where it reacts with the clay to reduce plasticity and improve workability and strength. Quicklime is also commonly used to dry wet soils.
• Cement is generally used for lower-plasticity, silty or granular soils and for base stabilization and full-depth reclamation, where higher early strength is needed.
• Some projects use a combination, such as lime to modify a clay followed by cement.

This is general guidance only. The engineer of record and the laboratory mix design govern additive selection, rate and depth on every project.

Request a Lunch-and-Learn

We present lunch-and-learns on soil stabilization and full-depth reclamation for engineering offices. Use the form below; the service field is already set to "Lunch-and-learn request".