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Mr. Gerhard Du Toit, C.Eng, P.E., M.ASCE


Contributions

1 to 4 of 4 total
Posted By Gerhard Du Toit 01-08-2021 09:19 AM
Found In Egroup: Horizontal/Subsurface Infrastructure & Transportation
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I suspect it all depends on what it is intended to be used for. As a stabilizer in road construction, the option to use cement vs. lime depends on the particular properties of the material. For example, the general "rule of thumb" is that for highly plastic materials (materials with high PI; clayey materials), ...
Posted By Gerhard Du Toit 01-21-2019 09:58 AM
Found In Egroup: Horizontal/Subsurface Infrastructure & Transportation
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​Ejaz, In following the comments and suggestions made by all in the group regarding this issue, I found the comments interesting, and very valuable, and most of all, encouraging that so many pavement engineers were willing to participate. However, coming back to your original question of can we as ...
Posted By Gerhard Du Toit 01-07-2019 09:44 AM
Found In Egroup: Horizontal/Subsurface Infrastructure & Transportation
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Ejaz, Overloading, and subsequently the detrimental effects that has on pavement life, is a common problem in many developing countries. From experience in many African countries, excessive overloading is a reality one has to take cognizance of. Yes, the ultimate solution is effective law enforcement, ...
Posted By Gerhard Du Toit 10-02-2018 11:38 AM
Found In Egroup: Horizontal/Subsurface Infrastructure & Transportation
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​Gary, I'm not aware of such a "rule of thumb," and suppose likelihood of stone becoming loose under traffic is equally likely for any size stone. I'm also not sure what the effect of frost heave could be on a chip seal surface, as I haven't come across it that much in colder regions. In my experience ...