This chapter addresses the common practices and test methods (standards) that are used for certification programs for the basic material categories of soils and aggregate, asphalt mixture, and ...

Soil aggregates are groups of individual soil particles that bind to each other more strongly than adjacent particles. Aggregates that don’t fall apart and revert to individual soil particles when ...

To grow good plants, you need good soil. The only way to tell what your soil really needs is to take a soil test. Applying too much fertilizer could be detrimental to your plants. You could waste ...

If you want your plants to grow big and healthy, soil quality matters. Even if you aren’t planning on growing a lush veggie garden, all plants need nutrients to grow, in addition to light and water.

The practices and methods listed were compiled from information found on the DOT’s website or from a document or documents on their website. AASHTO standard specifications begin with an “M,” practices ...