Download or read book Determination of Properties of Concrete Used in Thermal Studies for Lock and Dam No 2 Red River Waterway written by Terence C. Holland and published by . This book was released on 1982 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of Properties of Concrete Used in Thermal Studies for Lock and Dam Number 2 Red River Waterway written by Terence C. Holland and published by . This book was released on 1982 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two concrete mixtures, one containing and one not containing fly ash, were tested to determine pertinent physical properties for use in a finite element method (FEM) analysis of concrete thermal conditions during the construction of Lock and Dam No. 2 on the Red River Waterway. The overall objective of this testing and analysis was to develop construction procedures aimed at eliminating thermally induced concrete cracking during construction of the structure. The concrete mixtures tested were selected to be representative of those which will be used in the project. Aggregates and cements were from suppliers who could be expected to participate in the actual construction. The testing program included determination of ultimate strain capacity, compressive strength, splitting tensile strength, modulus of elasticity, Poisson's ratio, thermal diffusivity, specific heat, adiabatic temperature rise, and coefficient of linear thermal expansion. The strain capacity data presented are somewhat unique in that the two concrete mixtures evaluated more closely resembled structural concretes than typical mass concretes. A limited investigation of the effect of the size of the concrete specimens on their strain capacity was also conducted. Strain capacities were seen to decrease with specimen size for specimens in the range from 18 by 18 in. by 96 in. to 6 by 6 by 36 in This decrease may have been the result of one or more of the following: (a) differences in instrumentation used to measure strains; (b) differences in setting and curing temperatures as well as thermally induced strains for the larger beams; and (c) a greater probability of flaws in the larger cross sections of the larger beams.
Download or read book List of Publications of the U S Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1993 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Properties of Silica fume Concrete written by James E. McDonald and published by . This book was released on 1991 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Implementation of Time dependent Cracking Material Model for Concrete written by Sharon B. Garner and published by . This book was released on 1991 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Red River Waterway Thermal Studies Report 2 Thermal Stress Analyses written by and published by . This book was released on 1991 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is the second of a series documenting the findings of the Red River Waterway Thermal Study. It includes the results of thermal and incremental construction analyses of a typical navigation lock chamber monolith and an upper-gate bay monolith for Locks and Dams 4 and 5, Red River Waterway. Also analyzed was a typical dam weir section. These analyses were conducted using a general-purpose heat transfer and stress analysis finite element program which included a time-dependent cracking material model for concrete. Results of thermal properties tests and climate data were used to describe thermal boundary conditions, forcing functions, and thermal properties for the thermal analyses. Results of mechanical properties tests were used to calibrate and verify the time-dependent material model. Concrete mixtures with up to 50-percent replacement of Type II cement with Class C fly ash were studied. Results of two- and three-dimensional finite-element analyses were used to recommend lift heights, placement temperatures, and insulation requirements for construction. Concrete construction, Finite-element, Mass concrete, Concrete mixtures analyses, Stress and strain, Dams, Locks.
Download or read book CANMET ACI International Workshop on Silica Fume in Concrete written by and published by . This book was released on 1991 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1992 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Red River Waterway Thermal Studies Report 1 Concrete Mixture Selection and Characterization written by and published by . This book was released on 1990 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report includes the selection and characterization of the concrete materials in support of thermal- and incremental-construction analyses. The primary objective was to develop and evaluate materials and construction methods which would yield safe, serviceable structures with lower life-cycle costs. Materials (Type II portland cement, Class C fly ash, and aggregates) were selected based upon materials likely to be used to develop 15 trial concrete mixtures. Ratios of Class C fly ash to total cementitious materials from 0.25 to 0.60 were studied. Water cement ratios were varied from 0.45 to 0.65. These mixtures were evaluated based upon strength requirements, economy, and thermal considerations. From the 15 mixtures, 4 candidate mixtures were selected for complete thermal and mechanical properties characterization. Tests included thermal properties, adiabatic temperature rise, creep, elastic modulus, shrinkage, and compressive strength. Keywords: Concrete mixtures; Dams/locks waterways; Construction materials; Construction/cement; Strength mechanics; Stress strain mechanics; Thermal stresses/properties; Fly ash.
Download or read book Temperature Rise Tests of Mass Concrete for Locks and Dams 1 and 2 Arkansas Post Canal Route Arkansas River Arkansas written by Waterways Experiment Station (U.S.) and published by . This book was released on 1963 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Safety Science Abstracts Journal written by and published by . This book was released on 1983 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Red River Waterway Thermal Studies written by Sharon B. Garner and published by . This book was released on 1991 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Red River Waterway Thermal Studies written by Michael I. Hammons and published by . This book was released on 1990 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cement and concrete investigations Bull 1 Thermal properties of concrete Bull 2 Investigations of Portland cements Bull 3 Cooling of concrete dams Bull 4 Mass concrete investigations written by United States. Bureau of Reclamation and published by . This book was released on 1938 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Analysis of Mass Concrete Structures written by United States. General Accounting Office and published by . This book was released on 1984 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonlinear Incremental Structural Analysis of Olmsted Locks and Dams written by Sharon Garner and published by . This book was released on 1992 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
