Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g., kaolin, Al 2 Si 2 O 5 4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. [1]

Shale is the rock most often associated with landslides. Weathering transforms the shale into a clay-rich soil which normally has a very low shear strength - especially when wet. When these low-strength materials are wet and on a steep hillside, they can slowly or rapidly move down slope. Overloading or excavation by humans will often trigger ...

2021年4月6日 · Heavy clay soils don’t produce the healthiest plants and are usually amended with a material to lighten, aerate and help retain water such as expanded shale. The following expanded shale information explains how to use this soil amendment in the garden.

2020年8月22日 · Expanded shale is a soil amendment that is gaining popularity among gardeners in the United States, and for good reason. It can retain moisture, improve soil structure, deter ground-dwelling pests, and it never breaks down, unlike other organic additives.

2020年7月9日 · Expanded shale is a great way to loosen and aerate clay soils and improve moisture retention in sandy soils. It should not be used in place of organic matter but should be added if there is too much clay in the soil.

2023年8月21日 · Shale is a laminated or fissile clastic sedimentary rock that composed of predominance of silt and clay other minerals, especially quartz and calcite. Characteristic properties of shale is breaks along thin laminae or parallel layering or bedding called fissility. It is most abundant sedimentary rock.

Expanded shale has good insulating properties, increases soil porosity, absorbs 38% of its weight in water, conservatively last for years (decades) in the soil, does not change pH, it is environmentally friendly, essentially a renewable resource, improves drainage and aeration (retains 30% air space), non-toxic, odor less, 100% inert, inorganic ...

2024年5月15日 · With its rough, uneven shape and sturdy nature, expanded shale works its magic by creating microchannels within the dense clay soil. Therefore, your previously stubborn soil becomes less dense and easier to work with (for both gardeners and plant roots).

2023年5月19日 · Expanded shale is a soil amendment that is gaining popularity among gardeners in the United States and for good reason. It can retain moisture, improve soil structure, deter ground-dwelling pests, and it never breaks down, unlike other organic additives.

Whether you are creating raised beds, amending existing soil, or enhancing the drainage of your garden, shale offers flexibility and adaptability to meet your specific landscaping needs. Its versatility makes it a valuable addition to any gardening toolkit.