Measuring Monitoring And Modeling Concrete Properties
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| Author | : Maria S. Konsta-Gdoutos |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 761 |
| Release | : 2007-09-23 |
| Genre | : Technology & Engineering |
| ISBN | : 1402051042 |
This state-of-the-art volume covers the latest and future trends in measuring, monitoring and modeling the properties of cement based materials. The book contains 94 papers and presents the latest research work of renowned experts. It acts as a survey of the most up-to-date research in the field.
| Author | : Benjamin Leonard Bean |
| Publisher | : |
| Total Pages | : 342 |
| Release | : 1969 |
| Genre | : Airplanes |
| ISBN | : |
| Author | : Edward J. Garboczi |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2001 |
| Genre | : Concrete |
| ISBN | : |
This monograph is an attempt to summarize what has been developed thus far in the computational materials science of concrete. The monograph focuses on the work done by us, or in collaboration with us at NIST, as this has probably been the main (and almost the only) center for the computer modelling of the microstructure and properties of concrete in the 1990's. Relevant NIST experimental measurements of microstructure and properties are also covered. Many people outside of NIST have contributed to the work. The main source of text in this monograph is published papers. We have kept the original authors heading of each paper so that appropriate credit is given to the various contributors both within and outside NIST.
| Author | : Marijana Serdar |
| Publisher | : Springer Nature |
| Total Pages | : 246 |
| Release | : 2020-02-18 |
| Genre | : Technology & Engineering |
| ISBN | : 3030397386 |
The book examines advanced, non-standardized techniques that have been developed for determining different properties of cement paste, mortar and concrete, and provides state-of-the-art information on methods for monitoring hydration-induced changes in cement-based materials (CBMs). These methods are often nondestructive and allow quasi-continuous monitoring covering the time span from placement of the material to formation of a fully hardened cement composite. The book also presents various applications of acoustic emission for characterizing fresh concrete, recent developments in ultrasonic methods for characterizing CBMs since placement, application of ambient response methods for measuring elastic modulus, methods for determining deformational characteristics of CBMs since setting and methods for in situ measurements of stresses in concrete elements during hardening.
| Author | : |
| Publisher | : |
| Total Pages | : 11 |
| Release | : 1986 |
| Genre | : |
| ISBN | : |
| Author | : Peter A. Claisse |
| Publisher | : Elsevier |
| Total Pages | : 315 |
| Release | : 2014-05-09 |
| Genre | : Technology & Engineering |
| ISBN | : 1782423192 |
Transport Properties of Concrete covers how to measure the ability of ions and fluids to move through concrete material, and how to use the results to model performance. These transport properties largely determine the durability of concrete and of steel embedded within it, as well as the effectiveness of structures such as landfill containment barriers. The book begins by explaining in detail what transport properties are and how to write computer models for transport processes. Early chapters present and explain computer models written in basic code. Coverage then proceeds to a wide range of tests for the transport properties of concrete, and methods for calculating the values for these properties from the test results using analytical and numerical models. The final chapters then show how the values obtained can be used to predict the durability of reinforced concrete, to model the effect of gas pressure, and to model waste containment structures. A number of practical examples are given, in which the calculations and computer models have been applied to real experimental data. Transport Properties of Concrete provides a comprehensive examination of the subject, and will be of use to all concerned with the durability and effectiveness of concrete structures. Provides a detailed understanding of the various transport mechanisms that take place during testing in concrete Shows how to obtain fundamental transport properties
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2012 |
| Genre | : Pavements |
| ISBN | : |
Perpetual asphalt concrete (AC) and long-lasting Portland cement concrete (PCC) pavements are relatively new to the pavement community. These newer pavements require the use of innovative Mechanistic-Empirical (ME) design procedures, advanced climatic models, updated specifications, test methods providing detailed material properties, and construction techniques not been entirely adopted into standard practice. This study (Task B) monitored rehabilitated PCC pavements on I-86 and other existing instrumented pavements. It verified ME design procedures by comparing theoretical calculations with measured responses and performance. It calibrated ME procedures presented in the NCHRP 1-37A AASHTO Pavement Guide for New York using data collected in this and other previous studies. It also conducted controlled testing of perpetual pavement systems to determine their relative performance and to recommend the most promising layer configurations.
| Author | : |
| Publisher | : |
| Total Pages | : 99 |
| Release | : 1988 |
| Genre | : |
| ISBN | : |
The elevated-temperature, time-variant concrete property equations used by a previous version of SAFE-CRACK were evaluated via comparison to the Portland Cement Association (PCA) data for Hanford concrete. For some properties, the agreement was reasonably good, while for others there were significant differences. Since the previous SAFE-CRACK equations for Hanford concrete properties were developed before completion of the PCA study, the property equations were re-evaluated, modified where necessary, and fitted to the full PCA data base. Statistical methods were applied to produce expressions describing the uncertainties in the modified equations. Uncertainty expressions for both expected property behavior (confidence bands) and ranges of property behavior (tolerance bands) were developed.
| Author | : L. J. Parrott |
| Publisher | : |
| Total Pages | : 28 |
| Release | : 1990 |
| Genre | : Concrete |
| ISBN | : 9780721013961 |
This book reviews a wide range of methods for laboratory and in-situ measurement of moisture conditions in concrete and related materials in terms of their purpose, principles and practicalities. It suggests that destructive sampling and relative humidity measurements can provide reliable data relevant to a wide range of concrete properties, including durability and permeation and concludes that microwave and neutron scattering methods seem to warrant further development for moisture measurements in concrete.
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2015 |
| Genre | : |
| ISBN | : |
Assessment and management of aging concrete structures in nuclear power plants require a more systematic approach than simple reliance on existing code margins of safety. Structural health monitoring of concrete structures aims to understand the current health condition of a structure based on heterogeneous measurements to produce high-confidence actionable information regarding structural integrity that supports operational and maintenance decisions. This report describes alkali-silica reaction (ASR) degradation mechanisms and factors influencing the ASR. A fully coupled thermo-hydro-mechanical-chemical model developed by Saouma and Perotti by taking into consideration the effects of stress on the reaction kinetics and anisotropic volumetric expansion is presented in this report. This model is implemented in the GRIZZLY code based on the Multiphysics Object Oriented Simulation Environment. The implemented model in the GRIZZLY code is randomly used to initiate ASR in a 2D and 3D lattice to study the percolation aspects of concrete. The percolation aspects help determine the transport properties of the material and therefore the durability and service life of concrete. This report summarizes the effort to develop small-size concrete samples with embedded glass to mimic ASR. The concrete samples were treated in water and sodium hydroxide solution at elevated temperature to study how ingress of sodium ions and hydroxide ions at elevated temperature impacts concrete samples embedded with glass. Thermal camera was used to monitor the changes in the concrete sample and results are summarized.
