Construction Methods - Raito Deep Mixing                 Features of RDM    Raito's CDM Method In Situ Soil Mixing Technology RDM method is a soft soil stabilization method which mixes soft soil with cement slurry to produce soil-cement with higher strength and lower compressibility than the native soil.   Proven Technology Since its development in 1975 by the Port and Harbor Research Institute of Japanese Ministry of Transportation, more than 1,500 projects have been completed. The total volume of soil-cement produced exceeds 20 million cubic meters. It is also proven to be effective for liquefaction prevention.   Reliable in Strength Gain Required strength can be obtained reliably by setting a proper cement dosage according to the conditions of the soil to be treated. Minimum Impact to Environment The drilling and mixing operations is low noise and low vibration, and does not generate dust. Reduction in Construction Period Soil-cement gains strength and reduces compressibility faster than conventional soil improvement methods and shortens the construction period. Computerized Operation System The computerized operation system controls, monitors and records the drilling rate, mixing depth, auger rotational speed, and grout injection rate. This operation system minimizes human error and provides reliable soil-cement product as the design intended. Efficient Operation The mixing machine used is mobile and can be easily relocated to the next soil mixing location at site. The grout production and supply are automatic which saves labor while maintaining efficiency.