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Infrastructure Research Institute Scholarly Works: Recent submissions
Now showing items 221-240 of 339
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Cement Paste, Mortar and Concrete Under Monotonic, Sustained and Cyclic Loading
(University of Kansas Center for Research, Inc., 1991-10)The behavior of saturated specimens of cement paste and mortar under monotonic, sustained and cyclic loading, is compated to that of concrete at water - cement ratios of 0.5 and 0.7. Specimen age, at testing, ranges from ... -
Image Analysis of Air Voids in Air-Entrained Concrete
(University of Kansas Center for Research, Inc., 1991-08)The application of image analysis techniques to characterize the air-void system in hardened concrete is demonstrated. Both lineal and areal feature analyses are investigated. Feature size distributions and total air ... -
Effects of Epoxy-Coating on the Bond of Reinforcing Steel to Concrete
(University of Kansas Center for Research, Inc., 1991-07)The effects of deformation pattern! bar size, concrete cover, casting position, concrete slump 1 consolidation, transverse reinforcement, and concrete strength on the reduction in bond strength between reinforcing bars and ... -
Use of Strut-and-Tie Models to Calculate the Strength of Deep Beams with Openings
(University of Kansas Center for Research, Inc., 2002-07)Strut-and-tie modeling is a method applicable to almost every design situation in reinforced concrete. This is a behavioral theory proposed as a alternative to past design strategies utilizing empirical formulas and ... -
Evaluation of Corrosion Resistance of Type 304 Stainless Steel Clad Reinforcing Bars
(University of Kansas Center for Research, Inc., 2002-09)The corrosion performance of a prototype 304 stainless steel clad reinforcing bar and conventional reinforcing steel is compared based on corrosion potential and macrocell corrosion tests. Tests are conducted on bare bars ... -
Evaluation of Mechanical And Corrosion Properties of MMFX Reinforcing Steel for Concrete
(University of Kansas Center for Research, Inc., 2002-01)The variability of the mechanical properties and weight of steel reinforcing bars produced in the United States and Canada under ASTM A 615, A 616, and A 706 in 1997 is evaluated and expressions are developed to represent ... -
Shear Strength of Reinforced Concrete Members Subjected to Monotonic and Cyclic Loads
(University of Kansas Center for Research, Inc., 2003-06)The shear capacity of reinforced concrete members subjected to monotonic loads was investigated and used as the basis to formulate an expression to calculate the strength of members subjected to load reversals. The monotonic ... -
Evaluation of Corrosion Protection Systems and Testing Methods for Conventional Reinforcing Steel
(University of Kansas Center for Research, Inc., 2004-04)The performance of several corrosion protection systems for conventional reinforcing steel are evaluated. These include a lower water-cement ratio, two different corrosion-inhibiting admixtures, Rheocrete (an organic ... -
Statistical Analysis of the Mechanical Properties and Weight of Reinforcing Bars
(University of Kansas Center for Research, Inc., 2004-12)The variability of the mechanical properties and weight of steel reinforcing bars produced in the United States and Canada under ASTM A 615, A 616, and A 706 in 1997 is evaluated and expressions are developed to represent ... -
Evaluation of Corrosion Protection Systems and Corrosion Testing Methods for Reinforcing Steel in Concrete
(University of Kansas Center for Research, Inc., 2005-01)Corrosion protection systems for reinforcing steel in concrete and the laboratory methods used to compare these systems are evaluated. The systems evaluated include concrete with a low water-cement ratio, two corrosion ... -
Evaluation and Repair of Blast Damaged Reinforced Concrete Beams
(University of Kansas Center for Research, Inc., 2005-01)Ten reinforced concrete beams were constructed using standard concrete and A 615 Grade 60 reinforcing steel. Eight of the beams were then damaged using C-4 Composite high explosives to replicate the actual damage that a ... -
Evaluating Shrinkage and Cracking Behavior of Concrete Using Restrained Ring and Free Shrinkage Tests
(University of Kansas Center for Research, Inc., 2005-01)Free shrinkage and restrained ring tests are used to evaluate concrete mixes designed for use in bridge decks. The study consists of a series of preliminary tests and three test programs. In each program, the concrete is ... -
Bond Strength of Epoxy-Coated Reinforcement to Concrete
(University of Kansas Center for Research, Inc., 1990-07)Beam-end specimens were used to determine the effects of coating thickness (3 to 17 mils), bar size (No. 5 - No . 11), bar position (top- cast and bottom- cast), deformation pattern (3 patterns), and cover (1, 2 and 3 bar ... -
Rapid Test for Corrosion Effects of Deicing Chemicals in Reinforced Concrete
(University of Kansas Center for Research, Inc., 1990-08)Research to develop tests that can accurately predict the effects of deicing chemicals on the corrosion of steel in reinforced concrete structures is reported. The research includes the development and evaluation of a ... -
Shear Strength of Continuous Lightly Reinforced T-Beams
(University of Kansas Center for Research, Inc., 1990-12)The shear strength of continuous lightly reinforced concrete T -beams is studied. Six twospan T -beams with and without web reinforcement are tested. The primary variables are longitudinal reinforcement ratio (0.75% and ... -
Bond of Epoxy-Coated Reinforcement to Concrete: Splices
(University of Kansas Center for Research, Inc., 1991-05)The effects of epoxy coating and transverse reinforcement on the splice strength of reinforcing bars in concrete are described. Tests included 65 beam and slab splice specimens for members containing No. 6 and No. 8 bars. ... -
Comparison of QPE and QSIM as Qualitative Reasoning Techniques
(University of Kansas Center for Research, Inc., 1991-05)Qualitative reasoning predicts and explains the behavior of physical systems using the system's structure through modeling and simulation. There are several approaches to qualitative reasoning. Two of the most prominent ... -
Quantitative Backscattered Electron Analysis Techniques for Cement-Based Materials
(University of Kansas Center for Research, Inc., 1990-06)Backscattered electron imaging and x-ray microanalysis are used to identify phases within polished epoxy impregnated cement paste sections. A silicon-magnesium standard is applied and an objective procedure is developed ... -
Crack Opening Displacements in Pipes Containing a Part-Through Circumferential Flaw
(University of Kansas Center for Research, Inc., 1987-09)Three-dimensional, nonlinear finite element analyses were performed for three sizes of circumferential surface cracks in a 36 inch diameter (X70) pipe subjected to ben-ding. Two crack sizes (a/t=O.S, L/t=4 and a/t=0.25, ... -
Theoretical and Software Considerations for General Dynamic Analysis Using Multilevel Substructured Models
(University of Kansas Center for Research, Inc., 1985-09)An approach is presented for the dynamic analysis of complex structure sy~t'=!!!S using the finite element method and multilevel substructured models. The fixedinterface method is selected for substructure reduction because ...
