SOIL CEMENT 



Soil Cement 



SECTION 



Soil cement revetment, Bonny Dam, Colo. 



Prototype Installation : 

 Bonny Dam, Colorado. 



A soil cement test section performed satisfactorily for the 10 years 

 of this study (Holtz and Walker, 1962). 



Ute Dam, New Mexico; Merritt Dam, Nebraska; Casataic Dam, California. 

 Details of soil cement slope protection and design consideration 

 (Portland Cement Association, 1971). 



Wave Tank Tests : 



Small-scale runup tests show sharp edges and small steps reduce runup. 



Other design considerations (Nussbaum and Calley, 1971) . 



Design Factors : 



Zero-damage wave height: 5 to 7 feet (estimated). 



Wave runup: 0.7 to 0.8 compared to smooth slopes (estimated). 

 Wave reflection: Moderate (estimated). 



Remarks : 



Soil cement slope protection has been used on more than 30 dams 

 (Nussbaum and Calley, 1971). 



About 7- to 15-percent cement is used for mix. 



Cement and soil can be mixed at site or at a central plant. 



Beach sands deficient in fines require more cement than other soil 

 but beach sand makes good soil cement (Taylor, 1973). 



For coastal use, soil cement would extend up from waterline. 



If toe scour occurs, toe protection such as a cutoff wall or beach 

 nourishment would be needed. 



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