Transcription of ESTIMATING A PROCTOR DENSITY CURVE FROM - USDA
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ESTIMATING A PROCTOR DENSITY CURVE FROM - USDA
ESTIMATING A PROCTOR DENSITY CURVE FROM INTRINSIC SOIL PROPERTIES , N. , D. Ding ABSTRACT. Tillage studies have shown that maximum, tillage-induced, aggregate breakdown occurs near the optimum water content on a PROCTOR compaction CURVE for the soil. Many soil databases do not contain PROCTOR data; therefore, prediction equations were developed to estimate the optimum water content, peak PROCTOR dry bulk DENSITY , and the PROCTOR compaction CURVE for a soil based on common intrinsic properties (sand, silt, clay, and organic matter) from 39 soil samples. A good relationship was obtained between soil intrinsic properties and the optimum water content with an adjusted R^ value of The shape of the PROCTOR compaction CURVE was estimated using two lines intersecting at the PROCTOR optimum water content/peak DENSITY point.
ESTIMATING A PROCTOR DENSITY CURVE FROM INTRINSIC SOIL PROPERTIES L.E.Wagner, N. M.Ambe, D. Ding ... The Proctor compaction test provides a standardized ... specified in the ASTM Standard Effort test (ASTM D698), than originally suggested by Proctor of approximately
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