AuthorCulin, F.L., Jr.
KeywordsArizona Geological Survey Bulletins
United States of America
MetadataShow full item record
PublisherUniversity of Arizona Bureau of Mines
Description"A cement is any compound which, under certain conditions, is plastic, and under others develops tenacity, and can be used for holding together various materials." By far the most important, structurally and commercially, are the hydraulic cements, compounds of lime, silica, and alumina that have the property, when mixed with water to a paste, of cohering or setting, and finally becoming stone hard, even under water. There are four general classes of structural cement: ( 1) hydraulic lime; (2) hydraulic or natural rock cement; (3) Portland cement; (4) Puzzolan or slag cement. 15 p.
Series/Report no.Bulletin No. 25
Economic Series No. 9
RightsPublic Domain: This material has been identified as being free of known restrictions under U.S. copyright law, including all related and neighboring rights.
Collection InformationDocuments in the AZGS Document Repository collection are made available by the Arizona Geological Survey (AZGS) and the University Libraries at the University of Arizona. For more information about items in this collection, please contact firstname.lastname@example.org.
North Bounding Coordinate48.7656
South Bounding Coordinate24.9491
West Bounding Coordinate-124.805
East Bounding Coordinate-67.6758
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Bond strength of cementitious borehole plugs in welded tuff.Daemen, Jaak J.K.; Akgun, Haluk, 1959- (The University of Arizona., 1990)This study includes a systematic investigation of the bond strength of cementitious borehole plugs in welded tuff. Analytical and numerical analysis of borehole plug-rock stress transfer mechanics is performed. The interface strength and deformation are studied as a function of Young's modulus ratio of plug and rock, plug length and rock cylinder outside-to-inside radius ratio. The tensile stresses in and near an axially loaded plug are analyzed. The frictional interface strength of an axially loaded borehole plug, the effect of axial stress and lateral external stress, and thermal effects are also analyzed. Implications for plug design are discussed. Push-out tests are used to determine the bond strength by applying an axial load to the cement plugs. A total of 130 push-out tests are performed as a function of borehole size, plug length, temperature, and degree of saturation of the tuff cylinder. The use of four different borehole radii enables evaluation of size effects. A well-defined exponential strength decrease with increasing plug diameter results.