Educational Background:B.S. in Geology, 1959, University of Oklahoma

M.A. in Geology, 1962, University of Texas at Austin

Ph.D. in Geology, 1968, Texas A&M University at College Station


Professional Experience:After graduation from Texas A&M, Dr. Campbell taughtseveral courses in geology as assistant professor at Stephen F. Austin State University in Nacogdoches, Texas until 1971. For two years thereafter he was a self-employed petroleum-exploration geologist. In 1973 and 1974 he was a petroleum geologist for Hudson-Mueller, Inc., of Houston, Texas.


In April 1974 Dr. Campbell went to Skokie, Illinois to the Portland Cement Association, Construction Technology Laboratories (previously the R&D branch of PCA), where microscopy was routinely used in analysis of concrete distress, determination of concrete quality, and compliance with design specifications. Investigations typically followed methods given ASTM C 856, Petrographic Examination of Hardened Concrete. Projects included effects of cyclic freezing and thawing, sulfate attack, expansive alkali-aggregate reactions, steel corrosion, aggregate quality, air content, finishing techniques and others. Virtually all types of portland cement products, e.g. concrete block, pipe, mortar, grout, terrazzo, fire proofing, etc., were studied microscopically. The range of expertise extends to microscopical analysis of cement, cement clinker, fly ash, slag, and many other materials used in making cement.


In May 1995, Campbell Petrographic Services, Inc. was established in Dodgeville, Wisconsin, where the same kinds of projects continue. Thin-section microscopy is emphasized and reports are commonly fortified with x-ray diffraction, chemical analysis, and physical testing. In addition to a written report, he also provides video reports on request, as many clients find the videos helpful as a teaching and group-review tool. Clients are architects, engineers, attorneys, insurance companies, state agencies, ready-mix concrete producers, cement plants, builders, homeowners, and others.

Publications and Professional Activities: Twenty five articles on cement and concrete microscopy have been published, including two editions of a PCA book on quality control of cement, Microscopical Examination and Interpretation of Portland Cement and Clinker, 1985 and 1999 (April, 2nd edition). Dr. Campbell wrote the original draft of the test method for quantitative microscopy of clinker, ASTM C 1356-M, Standard Test Method for the Quantitiative Determination of Phases in Portland Cement Clinker by Microscopical Point-Count Procedure, ASTM Standard, Vol 4.01. As principal instructor, PCA short courses in cement and clinker microscopy are offered several times per year in Skokie, Illinois. He has taught more than 65 classes on cement and clinker microscopy at PCA and elsewhere. Courses have been given in other states and in Mexico, Australia, France, Canada, and the Philippines. Since 1984 he has served as panel-session chairman and workshop coordinator at the annual meeting of the International Cement Microscopy Association, and is a member of the Society of Sedimentary Geology (SEPM).

Publication topics include plastic freezing of concrete, carbonation, sea-water hydration of cement, asbestos-cement board, rebar corrosion, cracking, volcanic ash, alkali-silica reaction, sulfate attack, Egyptian pyramids, cement and clinker microscopy, techniques of sample preparation, and others. Dr. Campbell has written at least 1300 formal reports on microscopical aspects of the cement and concrete industry, many with audio-video tapes, and has been involved in more the 45 litigations concerning concrete problems, many requiring court testimony. Six papers in geology have been published. Bio- and bibliographic details are available on request.

In 2002 Dr. Campbell received the Bryant Mather Award from the ASTM Committe C-01 (Cement)