In the past, soil stabilization was done by utilizing the binding properties of cement based products and lime in clay soils. BBM® is a new technology product classified as green technology.
BBM® Application
There are basically two methods. After the soil content and moisture analysis, the amount of cement and BBM® and the application method are determined by considering the purpose of use of the road and the data obtained.
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Spraying Method; Diluted BBM® is sprayed onto the surface after the cement mixed soil is leveled. Then the soil is compacted.
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Mechanical Method; Cement and diluted BBM® are mixed into the soil by reclaiming machines or mechanical mixers to obtain a homogeneous mixture. Then the soil is laid, leveled and compacted.
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The amount of cohesive fines (silt and clay) in the soil is the main factor in the selection of the method. BBM® can be applied to most soil types.
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Cement is added at the rate of 2%-5% of the soil weight to be processed, and BBM® is added at the rate of 2%-4% of the optimum water content.
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Spraying Method Steps
• mix cement within soil
• place cemented soil and grade
• spray the solution onto graded soil
• compact the optimum moistured soil
Stabilization Proses machines illustrated by the producer Wirtgen-Group
• binding agent spreader
/solution sprayer
• soil stabilizer/reclaimer optional
integrated spreader and/or sprayer
• padfoot soil compactor
• grader
• smooth drum soil compactor
Mechanical Method Steps
• mix cement and solution within soil by a mechanic mixer or reclamier
• place and/or grade the treated soil
• compact the optimum moistured soil
• mechanic mixer any kind that mix homogeneously
In-Situ BBM® Application
• grade / rip / mill the soil
• apply method steps
Make sure of:
• soil anaylse results
• proper drainage
• homogeneous mixture
• compliance with cement hydration time