Balancing performance, budgets and environmental regulations is an increasing challenge for road builders
Conventional soil additives can help stabilize local soils but their costs are inceasing also
Liquid enzyme stabilizers work well and are more cost effective than conventional soil additives
Soil stabilization technology has been repeatedly proven effective in comprehensive studies
This new technology is successfully in use in more than 30 countries worldwide
For road engineers and contractors in both the public and private sectors, finding a way to balance road performance, limited budgets and tightening environmental regulations is an increasing challenge. Treatments that improve the long-term performance of conventional pavements are becoming less and less cost-effective. Road budgets - especially for maintenance, seem to shrink annually relative to the task at hand. Environmental regulations mandating dust control and sediment control for road shoulders and unpaved surfaces continue to tighten. Moreover, common amendments such as gravel and well-graded soil for upgrading road structures are becoming less available and increasingly expensive.
many years, road engineers have used additives such as lime, cement and
cement kiln dust to improve the qualities of readily available local soils.
Laboratory and field performance tests have confirmed that the addition
of 6% to 10% of such additives can 'increase the strength and stability
of such soils. However, the cost of introducing these additives has also
increased in recent years. This has opened the door widely for the development
and introduction of other kinds of soil additives including highly cost-effective
liquid enzyme formulations.