Frequently Asked Questions
What kind of soil can be stabilized
Extensive field and laboratory testing has defined the application limits of RBI Grade-81. The grading of the soil (particle size distribution) helps to define these limits, however they are very broad. RBI Grade-81 has a wide response spectrum of soil types ranging from sandy soils (an achievement of RBI Grade-81 that separates it from other conventional soil stabilisers) to highly plastic soils.
RBI Grade-81 can be applied utilising wide scope of methods, ranging from basic manual tools to advanced automated machinery.
The percentage of RBI Grade-81 added to the soil is dependent on several factors, namely the traffic requirements of the road, the type of road, the type of soil, the underlying sub-base and the desired result. Typical application rates range from 2% to 6% by mass, although not limited to this range.
Even before the application is finished the result can start to show, as the addition of RBI Grade-81 to the soil acts as a compacting aid. Therefore, after final compaction the results are already visible, however the reaction is still in the introductory phases. Within the first 24 hours a substantial amount of the reaction of RBI Grade-81 with the soil has been completed and after the first 7 days a substantial proportion of the reaction has been established. Due to the nature of RBI Grade-81 and the fact that it is based on hydration, the reactions continue for a 365 day period.
To achieve the most substantial benefit from your road project, core removal should not be performed earlier than 28 days. The removal of cores is a very stressful procedure and requires the stabilized material to have reached a state of advanced curing. It is advisable to consult with a member of the Stabilig Road Solutions’ technical team prior to such a procedure.
The larger the application the better, as an application large enough for cars to drive over is far superior than a small patch that only can be walked upon. A common distance is 100 meters long by 5 metres wide, as this allows for witnessing firsthand the excellent durability and results of the application. Our philosophy is based on “Seeing is believing”.
RBI Grade-81 is packaged in 20 Kg bags as well as 1-tonne bulk bags for larger application projects. All of our packaging is met with rigorous quality control testing to ensure that the standard of material is kept constant.
RBI Grade-81 must be kept contained in a dry storage area to ensure its 12 month storage life is maintained.