Download or read book Additional Investigations of Nonshrink Grouts written by John A. Boa and published by . This book was released on 1977 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Shrinkage resistant Grout Mixtures written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Professional s Guide to Nonshrink Grouting for Owners Architects Engineers Contractors Specifiers written by and published by . This book was released on 1981 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Shrinkage resistant Grout Mixtures written by Ralph A. Bendinelli and published by . This book was released on 1962 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The object of this investigation was to develop information on the properties and performance of shrinkage-resistant grout. The investigation was conducted in four phases: the first was a review of literature on shrinkage-resistant grouts; the second consisted of laboratory studies of metallic aluminum powders for use as expansion agents in type a grouts and included investigation of methods for use in measuring the volume change of grout; the third was a study of the behavior of two types of grouts when used for grouting a simulated machine-base bedplate; and the fourth phase was a laboratory study of two types of grouts, one designated type M grouts which derive their expansive properties from oxidation of metallic aggregate, and the other, type A grouts which derive their expansive properties from the presence of metallic aluminum. Of the methods mentioned for determining the volume change of grouts, those employing depth micrometer measurements appeared to be the most successful. Strain gage measurements were reported to be difficult to obtain when the grout is in a plastic state.

Download or read book Investigation of Sand cement Grouts written by and published by . This book was released on 1960 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Procedures for Testing Grout Fluidifiers written by Rembert Leeroy Curry and published by . This book was released on 1965 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Instruments for Determining the Elevation of Grout in Deep Holes written by Billy J. Houston and published by . This book was released on 1966 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Investigations written by and published by . This book was released on 1990 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Summary of Investigations in Support of the Civil Works Program written by Waterways Experiment Station (U.S.) and published by . This book was released on 1963 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guidance on Oversight of Potentially Responsible Party Remedial Investigations and Feasibility Studies written by and published by . This book was released on 1991 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Failure of Teton Dam written by Teton Dam Failure Review Group (U.S.) and published by . This book was released on 1980 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Federally Coordinated Program of Research and Development in Highway Transportation written by and published by . This book was released on 1982 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sustainable Bridge Structures written by Khaled Mahmoud and published by CRC Press. This book was released on 2015-08-07 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ever-increasing traffic demands, coupled with deteriorating condition of bridge structures, present great challenges for maintaining a healthy transportation network. The challenges encompass a wide range of economic, environmental, and social constraints that go beyond the technical boundaries of bridge engineering. Those constraints compound

Download or read book Selection and Investigation of Sites for the Disposal of Radioactive Wastes in Hydraulically Induced Subsurface Fractures written by Ren Jen Sun and published by . This book was released on 1982 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Injection of intermediate-level radioactive wastes (specific activity of less than 6 x 103γCi/mL, consisting mainly of radionuclides, such as strontium and cesium, having half-lives of less than 50 years) mixed with cement into a thick shale formation is a promising and feasible disposal method. Hydraulic fracturing provides openings in the shale to accommodate the wastes. Ion exchange and radionuclide-adsorption materials can be added to the grout during mixing to further increase the radionuclide-retaining capacity of the grout. After solidification of the grout, the injected wastes become an integral part of the shale formation, and therefore the wastes will remain at depth and in place as long as the injection zone is not subjected to erosion or dissolution. Problems concerning safety of the disposal method are (1) the potential for inducing vertical fractures, (2) phase separation during and after the injections, (3) the reliability of methods for determining the orientation of induced fractures, (4) the possibility of triggering earthquakes, and (5) radionuclides being leached and transported by ground water. In bedded shale, a difference between tensile strength normal to and that parallel to bedding planes favors the formation of fractures along bedding planes that are nearly horizontal. Even in areas where vertical stress is slightly greater than the horizontal stresses, nearly horizontal bedding-plane fractures can be hydraulically induced in shale at depths less than 1,000 meters. Test injections should be made during site evaluation to determine if horizontal bedding-plane fractures can be induced. The orientation of induced fractures can be indirectly monitored by recording injection pressures during injection time and by measuring the decay of water injections and the uplift of ground surface after the injections; however, it can be directly determined by gamma-ray logs made in observation wells before and after each injection, if the injected fluid or wastes contain enough gamma-ray emitting radionuclides. If waste grout is properly mixed, phase separation should be less than one percent of the total amount injected. The mobility of waste in the separated liquid is further decreased by the low permeability (less than 10−6 darcy) and the large ion-exchange and adsorption capacity of shale, which thus reduce the potential for contamination. Grout injections do not cause extensive increases in pore pressure within shale, and a disposal site should be located in a geologically stable and tectonically relaxed area, that is, an area lacking local active faults. Thus a disposal in shale in such areas can avoid the two necessary and essential conditions for triggering earthquakes by fluid injections, an increase in pore pressure and rock already stressed near its breaking strength. Waste injections are made in several stages at different levels through an injection well. After the first series of injections at the greatest depth, the well is plugged by cement at that depth. The second series of injections are made a suitable distance above the first. The repeated use of the injection well distributes the cost of constructing injection and monitoring wells over many injections, thereby making hydraulic fracturing and grout injection economically attractive as a method for the disposal of radioactive wastes. Theoretical considerations about inducing nearly horizontal beddingplane fractures in shale are discussed, as are field procedures for site selection, safety, and the monitoring and operation of radioactive waste disposal. Case histories are used as examples to demonstrate the application of the theory and techniques of field operations.

Download or read book Tunnelling Contracts and Site Investigation written by Dr P.B. Attewell and published by CRC Press. This book was released on 1995-08-31 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wide ranging and up-to-date review of experience of tunnelling contracts, particularly those for sewerage and drainage tunnels. The review is based on the 6th edition of the ICE Conditions of Contract, but it takes note of new forms of contract which are leading towards less adversarial contractual relations.^

Download or read book Strait Crossings 2001 written by J. Krokeborg and published by CRC Press. This book was released on 2001-01-01 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the Fourth Symposium on Strait Crossings, and deals with technology for bridges, sub-sea tunnels, submerged floating tunnels, floating bridges and ferries. It covers planning, construction and maintenance, as well as technical solutions.

Download or read book Advances in Site Investigation Practice written by Institution of Civil Engineers (Great Britain) and published by Thomas Telford. This book was released on 1996 with total page 966 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings of the international conference on advances in site investigation practice held in 1995 provide vital information for all professionals involved in the planning, execution, interpretation and applications of site investigations. It draws together the research and experience of many of the most eminent professional engineers and academics, presenting a substantial body of knowledge.