Select Fill
Our dirt fill material that is used in an application that has certain specifications required by a soils engineer. Generally, most select fill used underneath concrete foundations or paving must have a low to medium plasticity index (PI) to replace or mitigate highly expansive clays which are common in the Houston area. Most select fill soils are qualified prior to and during placement by the project owner’s soils engineer on a job by job basis by means of sampling the material at the source or at the job site.
Bank Sand
Our sand is a unprocessed/unwashed material mined from the Greater Houston Area. Generally, our sand will meet specifications which require that no more than 15% of the sand pass through a #200 sieve meaning that the sand is relatively free of fine grained silts and clays. However, being that it is an unprocessed/unwashed product it is not uncommon to find some clay clods, silt, or other impurities in small amounts. Generally this product is ordered as “bank sand” for bedding water lines or other drainage/utility structures or as “final grade” for smoothing rough graded areas prior to sod or concrete placement.
Fill Dirt
Fill dirt is usually subsoil (soil from beneath topsoil) and underlying soil parent material which has little soil organic matter or biological activity. Fill dirt is taken from a location where soil is being removed as a part of leveling an area for construction; it may also contain sand, rocks, and stones, as well as earth. Fill dirt should be as free of organic matter as possible since organic matter will decompose creating pockets of empty space within the fill which could result in settling.
Top Soil
Our topsoil is an unscreened/unprocessed material generally mined from soils occurring within the top 6 to 18 inches of natural ground. This unscreened topsoil is a cost effective product that provides some of the organic qualities of a more expensive screened product. However, being that it is an unscreened/unprocessed product it may contain some impurities in the form of clay clods or small roots.