Increas a cbr value in sub grad material in road construction
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For soil-cement, the MEPDG (Part 2, Chapter 2) suggests a MINIMUM value of Resilient Modulus of 25,000. Using the "magic" formula Mr = 1,500 CBR, this implies a minimum CBR of about 17. Therefore your CBR = 12 appears quite low.
Besides, 12% cement is really HIGH!! You are in the range of cement content of concrete, which probably means that your solution may not be economically viable (I suppose...).
Best regards.
For soil-cement, the MEPDG (Part 2, Chapter 2) suggests a MINIMUM value of Resilient Modulus of 25,000. Using the "magic" formula Mr = 1,500 CBR, this implies a minimum CBR of about 17. Therefore your CBR = 12 appears quite low.
Besides, 12% cement is really HIGH!! You are in the range of cement content of concrete, which probably means that your solution may not be economically viable (I suppose...).
Best regards.
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