GrusLås can be used with a wide variety of soil types—from sandy to hard clay—by varying the dilution rate of GrusLås to water in the application process. A more concentrated product/water mixture is used to stabilize sandy soil; while a less concentrated product/water mixture is used to stabilize dense clay soil. Here are some examples of soil types that GrusLås can effectively stabilize:

• Sandy Soil

• Gravel

• Silty Soil

• Volcanic Ash

• Clay

• Crushed Asphalt

• Crushed Concrete

• Combinataions/Mixed Soils

Roads constructed with GrusLås are highly impermeable and highly compacted. We have achieved permeability levels of 2 x 10-9 cm/sec under (American Society of Testing & Materials) ASTM 5084 and compaction results as high as 95%. Because potholes result from water penetration, the water-resistant quality and density of GrusLås-bound surfaces eliminate the need for constant road maintenance after seasons of rain and storms. 

Yes! GrusLås applications are not affected by freezes closely followed by thaws. The impermeability of properly applied and compacted GrusLås-treated roads means that minimal cracks due to standing water during thaw periods will undermine the integrity of the surface. 

For example, a GrusLås road base finished with a chip-seal surface in the County of San Bernardino, CA, has withstood 7 years of freeze/thaw weather without any maintenance needed.

Roadbeds and unpaved roads constructed with GrusLås are highly durable. In laboratory testing, GrusLås/water/soil combinations have produced unconfined compressive-strength levels of 1233 PSI/85 bar (ASTMD 2166). Such strength will readily endure heavy traffic. 

Typically, there is no need to import base material when using GrusLås in road, pad, or field construction. Instead, GrusLås is mixed with the native, onsite soil to produce a solid lasting base. Adding GrusLås to native material reduces costs in two ways due to its extremely low permeability.

• The low permeability of the GrusLås base reduces the occurrence of potholes, thereby saving on maintenance costs.

• If an additional asphalt wear surface on a road is desired, the asphalt surface can be much thinner than traditionally required. Reducing the amount of asphalt equates to big savings. In some situations, a chip-seal surface is all that is required—resulting in additional savings.

In other situations (rural roads, utility maintenance roads, etc.), no additional asphalt surface is desired or needed. For example, GrusLås was used to construct a 0.5-mile (800m) road for the County of Riverside, CA, over 8 years ago, without any additional surfacing. The road carries 500+ cars/day and has not required any additional maintenance.

No. GrusLås is an environmentally safe, non-toxic chemical. It will not harm plant, aquatic, or animal life. Leachability tests found that no harmful substances leached into surrounding soil from applications of GrusLås. Under EU REACH regulations, GrusLås copolymer is currently exempt from the standard registration and evaluation requirements.

No. GrusLås is entirely non-polluting and safe. It is non-toxic, non-carcinogenic, non-flammable, non-combustible. It can be safely and effectively used for hydroseeding.

When a dilute solution of GrusLås is sprayed over dusty soils, the product binds the soil to a depth sufficient to trap surface particles that would otherwise be blown by the wind or washed away by rain. 

If left undisturbed, the crusty cover can last through several seasons. However, the surface can easily be broken up for use in agriculture or construction operations. GrusLås dust applications help contractors and government agencies avoid penalties for air quality violations that can occur during construction projects. 

GrusLås is not only compatible with hydroseeding, but GrusLås-treated soil enhances plant growth by allowing germination to take place uninhibited by wind and/or water erosion. 

GrusLås is white in color, but it turns transparent as it dries—making it effective for nature trails and rural roads and creating a natural appearance that is superior to geomembranes and geosynthetic fabrics.  

For pricing information based on your requirements, please contact us by phone or e-mail.