TerraDry® is a non-solvent based organo-silane product that represents nanotechnology waterproofing for native soils. It is frequently incorporated into road building and parking lot projects utilizing GES’ DirtGlue® Industrial. TerraDry works at the microscopic level preventing the water molecules from being able to enter whatever substrate is being protected. The penetrants in the TerraDry chemically react with the substrate and provide molecular level hydrophobicity.
The problem with using inferior soils (clay and silt) for road construction is that they build up a structure of fine capillaries that absorb water, which causes a reduction of stability, load bearing capacity, and the ability to resist frost. The DirtGlue TerraDry system is a combination of two complementary components developed specifically to fill the capillary network with an organosilane component, thus rendering the soil water repellent. Once the soil is treated with TerraDry, capillary water uptake is prevented, ensuring permanent high load-bearing capacity, stability and frost resistance.
TerraDry with DirtGlue Industrial has been used to build military access roads with tank and super-heavy duty vehicular traffic. It has been used to build housing subdivision roads in places like Costa Rica, retaining the natural charm and beauty of the terrain.
DirtGlue Industrial (DGI) is shipped as a liquid concentrate and diluted 1:1 with water (adjusted down for high moisture content substrates). Then TerraDry is added at a rate of ~10% of the DGI, e.g. 500 gallons of DGI + 500 gallons of water + 50 gallons of TerraDry. Note: the application rate of TD is increased for high clay/silt content substrates.
