Download or read book Adhesion at Crystalline Interfaces in Rock written by George A. Savanick and published by . This book was released on 1972 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adhesion at Crystalline Interfaces in Rock written by George A. Savanick and published by . This book was released on 1972 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adhesion in Rocks written by George A. Savanick and published by . This book was released on 1973 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective was to ascertain the magnitude of forces responsible for coherency of rock by quantifying the strength of the attractive forces operating between minerals in rock. These forces oppose stresses set up in various rock gragmentation processes, hence strength measurements of these forces might prove useful in designing more efficient rock fragmentation methods. Methods were developed for estimating strength of intergranular adhesion in rock. Examination of bicrystals broken at the crystalline interfaces reveals that bonds responsible for this adhesion operate only over a portion of the interfacial area. This work demonstrated that strength tests can be conducted on small selected areas, i.e., grain boundaries in rock. This permits a determination of small scale zones of strength or weakness which may be related to the overall strength of the rock.
Download or read book Report of Investigations written by and published by . This book was released on 1972 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adhesion in Rock written by George A. Savanick and published by . This book was released on 1972 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A direct method has been developed for estimating the strength of intergranular adhesion in rock. It involves the separation of a bicrystal from the rock and a determination of the tensile strength at the solid-solid interface. This technique has been successfully applied to the study of quartz-feldspar interfaces separated from pegmatites, graphic granite, and the Rockville granite yielding average tensile strengths of 5.86, 8.62, and 10.65 MN/msq (850, 1,250, and 1,524 psi) respectively. The data generated by this technique indicate that the members of these bicrystals are strongly adhernet. Examination of bicrystals broken at the crystalline interfaces indicates that the bonds responsible for this adhesion operate only over a protion of the interfacial area. The significance of this work is that it demonstrates that tensile strength tests can be conducted on small selected areas, e.g. grain boundaries in rock. This permits a determination of small scale zones of strength or weakness which may be related to the overall strength of the rock. Selected area microindentation hardness testing has also been performed to probe hardness variations near phase boundaries.
Download or read book Better Coke by Using Antifissurants written by Alan H. Goode and published by . This book was released on 1972 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1976 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bureau of Mines Publications and Articles with Subject and Author Index written by United States. Bureau of Mines and published by . This book was released on 1975 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog United States Public Documents written by United States. Superintendent of Documents and published by . This book was released on 1973 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Download or read book Chemically Enhanced Drilling written by Pamela J. Watson and published by . This book was released on 1985 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Information Circular written by and published by . This book was released on 1975 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ARPA Bureau of Mines Rock Mechanics and Rapid Excavation Program written by James J. Olson and published by . This book was released on 1975 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Bureau of Mines publication reviews the research conducted under a 3-year, $6.6 million program in rock mechanics and rapid excavation. The program was sponsored by the Defense Department's Advanced Research Projects Agency and was managed by the Bureau. In addition to the rock mechanics investigations, projects were funded in the following general areas of rapid excavation: System analysis, geologic prediction, rock disintegration, ground support, and materials handling. This report briefly summarizes the significant technical accomplishments of the individual research projects and references the contract reports and other publicatons where more detailed descriptions of the research can be obtained.
Download or read book Bulletin written by United States. Bureau of Mines and published by . This book was released on 1976 with total page 1272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mineral Facts and Problems written by United States. Bureau of Mines and published by . This book was released on 1975 with total page 1266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Publications written by United States. Bureau of Mines and published by . This book was released on 1973 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamentals of Adhesion written by L.H. Lee and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
