Digital Library / STP / STP1350-EB / STP13308S



Experimental Study of the Relationship Between Formation Factor, Porosity, and Cementation

Harig, MD
Graduate student,Humboldt State University,California,

Chaney, RC
Professor,Humboldt State University,California,


Pages: 14    Published: Jan 1999


Download this paper for $25 PDF (248K)          View License Agreement
        Click here to download the complete source publication for $90 PDF (6.7M)


Source: STP1350-EB


Abstract

Cemented granular soils are classified based on the size and distribution of the individual grains and qualitatively on the basis of cementation. To uniquely classify these types of soils, information about the fabric (pore geometry and/or level of cementation) of the specimen needs to be quantified. Electrical resistivity, or its reciprocal, conductivity, methods have been extensively used both in situ and in the laboratory to provide a means for determining a variety of soil index, structural, erosional, and cyclic properties. The objective of this study was to determine the relationship between formation factor (F), porosity (n), and cementation factor (m) of remolded sand-cement specimens. This relationship is shown to provide a mechanism for estimating the level of cementation in undisturbed specimens. The formation factor is the ratio of the electrical resistivity of the sand-water-cement mixture to that of the interstitial water.


Keywords:
electrical resistivity, formation factor, porosity, cementation factor

Paper ID: STP13308S
Committee/Subcommittee: D18.25
DOI: 10.1520/STP13308S
CrossRef ASTM International is a member of CrossRef.