Soil cement slope protection
Soil cement slope protection
(OP)
Does anyone have any idea of what sort of 7 & 28 day compressive strengths you would want for soil cement stabilised slopes? Let's assume a nominal cement content of around 5-8%.





RE: Soil cement slope protection
States 400psi for 7 day.
Detail can be bought at:
http:/
The Portland Cement Association has a couple of nice manuals you can buy too. Your cement content seemslow at first glance for a slope protection. Is water and/or freezing unlikely? Your percent sounds like a dry slope or not on a water storage dam.
RE: Soil cement slope protection
However, cement content vs. compressive strength is highly variable depending upon the type of soil you are using. Without knowing the gradation and %fines, you can't estimate the strength without doing trial mix design. With a high percentage of fines, you could easily double the amount of cement required to achieve your desired strength.
Are your slopes to protect against flowing water, or just to stabilize from sliding and movement?
RE: Soil cement slope protection
RE: Soil cement slope protection
Maybe it is different in other locations and I am always wanting to learn more.
RE: Soil cement slope protection
RE: Soil cement slope protection
Also, the way it was put in around here 10-15 years ago, little thought was given to toe protection and it is often undercut with caverns forming underneath the bottom of it.
I still find a great deal of value in vegetative methods because of infiltration and filtration and on steeper slopes have been quite impressed with how long gabion systems have lasted for us. But to each their own.
RE: Soil cement slope protection
We have mostly sandy and gravelly soils around here so expansion is minimal and the native alluvial soils create a very strong soil cement without adding very much cement. Toe down is critical and generally ranges up to 10 - 15 feet deep around here. Method of installation is also quite conservative, using stair stepped 8 foot wide lifts and going up at 2:1 or 3:1 slope.
RE: Soil cement slope protection
Good Luck,
Rick Hassett, P.E.
R.A. Hassett, P.E.
rah1616@hotmail.com