Construction aggregate is a category of coarse to medium grained material which includes sand, gravel, crushed stone, slag and recycled concrete serving as reinforcement to add strength to the overall composite material.
Due to the relatively high hydraulic conductivity value as compared to most soils, aggregates are widely used in drainage applications such as foundation.
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Topsoil is the upper most layer (top) of soil. The top two inches and potentially down as far as eight inches is classed as topsoil.
Topsoil has a very high concentration of microorganisms and organic matter and is where the most of the 'Earth's' biological soil activity is. There are four elements that form the composition of the upper soil, including mineral particles, water, air and organic matter.
The topsoil volume is between 50% and 80% of these types of particles and they form the skeletal structure of the soil. They allow the soil to sustain effectively its own weight, also other matter such as water overlying the land.
The Organic matter varies on the quality and quantity on different soils. This then ensures that the positive and negative effects or reactions on the topsoil.
In terms of strength the soils structure can decrease with the presence of the organic matter. The organic matter can settle in different ways and under different conditions.
Good quality topsoil is ideal for a wide range of planting and landscaping schemes where a quality outcome is essential. It is usually light, friable and makes it easy to work with in wet conditions. Get in touch and let us know what you need.
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