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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.
How is RBI Grade-81 applied and what machinary is required
RBI Grade-81 can be applied utilising wide scope of methods, ranging from basic manual tools to advanced automated machinery.
What is the dosage of RBI Grade-81
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.
When will the results of RBI Grade-81 application be visible
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.
When can tests be performed on the roads
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.
If I perform a trial application, what size is ideal

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”.

How is RBI Grade-81 packaged?

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.

What is the shelf-life of RBI Grade-81

RBI Grade-81 must be kept contained in a dry storage area to ensure its 12 month storage life is maintained.