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Clay

Soil samples in a lab

7 min read

Soil Classifications & How to Use Them

Soil classifications are the key to construction, engineering, and agriculture. Knowing your soil type tells you how to use and improve it. And...

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Dirt road that needed soil amendments in Indiana

7 min read

What Soil Amendments Are & How to Choose Them

Soil amendments are materials that can improve earth’s strength, quality, or other properties. There are hundreds of soil amendments available, which...

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#200 finder soil logo on dirt where someone is collecting a soil sample

5 min read

How Does Substrata Evaluate My Soil?

Most soils work great with Perma-Zyme, and they each work a little differently based on their composition. So, we offer free evaluations to help you...

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Soil samples ready for sieve analysis testing

8 min read

How & Why We Do Sieve Analysis Tests

Sieve analysis tests help classify soil on a jobsite so contractors and engineers can better gauge how it will hold up to the job they want it to do....

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Perma-Zyme treated dirt road with a question mark on a road sign

6 min read

Top 7 Questions People Ask About Perma-Zyme

Perma-Zyme differs from traditional soil stabilizers, so people want to know how it works, what it can do, and how to use it. We’re here to answer...

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Close-up of moist, compacted soil

7 min read

Optimum Moisture Content & How to Check It

Compaction is the most essential part of construction. It ensures that soil particles press close enough together to form a strong, load-bearing...

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Soil testing technician performing an Atterberg limits test

10 min read

What Are the Atterberg Limits & How Do You Find Them?

Soil’s Atterberg limits are essential to know for successfully constructing roads, buildings, and other projects. But, they’re about as clear as mud...

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Motor grader working with expansive clay soil

6 min read

How to Build Low-Maintenance Roads on Clay Soil

Strong roads start with strong soil. When soil stays in place, the road’s surface lasts longer and stays safer. The trouble is that the soil in many...

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Red clay soil

8 min read

Clay 101: Characteristics, Types, Pros, Cons, & Construction Tips

Working with clay soil is tough for any project—from county roads to multi-acre drilling pads to small home gardens. To succeed, you must understand...

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