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Concrete and Mortar
Science: Technology: Structural Engineering
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Alkali-Silica Reaction and High Performance Concrete
- Answers the question if high-performance concrete is susceptible to alkali-silica reaction. The paper contains details on the alkali-silica reaction mechanism and the factors influencing it as well as an overview on available test methods (ASTM C1260 and C227). Besides an abstract the fulltext is available as PDF (24 pages, 1.3 MB).
Argument for Using Coarse Cements in High-Performance Concretes.
- Investigation of the effects of particle size distribution and water-to-cement ratio on hydration kinetics. Printed in: Cement and Concrete Research, 1999. Besides an abstract, the fulltext is available as PDF (371 kB).
Assessment of Commercial Corrosion Inhibiting Admixtures for Reinforced Concrete
- This report conveys the results of a three-part laboratory study of corrosion inhibiting admixtures in concrete. The abstract is available in HTML and the fulltext as PDF (1.4 MB).
Calcium Aluminate Cement
- Publications and lectures about high alumina cement.
Comparison of Concrete Rheometers
- Comparison of measurements from five types of concrete rheometers (four of them are commercial available). The aim was to provide data to establish correlations among them.
Fresh Concrete Rheology - Recent Developments
- An overview of the tests that are commonly used to measure the rheology of fresh concrete and methods to predict the flow of concrete from either composition or laboratory tests. Materials Science of Concrete VI. Proceedings, 2001.
Influence of Mineral Admixtures on the Rheology of Cement Paste and Concrete
- Rheological tests on cement paste were used to successfully select the type and dosage of mineral admixtures that improved concrete workability.
Methods for Investigation of the Hydration Process in Cementitious Materials
- Comparison of results investigating the hydration process in cementitious materials. Methods used are ultrasound, scanning electron microscopy and nuclear magnetic resonance spectroscopy.
Modified Slump Test to Measure Rheological Parameters of Fresh Concrete
- The ease of placement of concrete depends upon at least two physical properties, the yield stress and plastic viscosity. Currently the most common field test is the slump test, and it is related only to the yield stress. Therefore, a simple field test method intended to provide an evaluation of the two Bingham rheological parameters, yield stress and plastic viscosity, was developed. Description of apparatus and test procedure.
Stress Due to Alkali-Silica Reaction in Mortars
- A test method and test apparatus is presented. It does not measure the length change but measures the stress generated by the swelling of the gel. The force required to prevent expansion is measured over time while the specimen and frame are immersed in a solution of 1-N NaOH at 50°C. With some test results.
Visible Cement Dataset
- A collection of three-dimensional data sets of hydrating cement, Plaster of Paris, and common brick material, all obtained using x-ray microtomography at the European Synchrotron Radiation Facility in Grenoble, France. Each data set includes a description of the sample, the raw 3-D data, and several two-dimensional images extracted from the raw data. Also included are several C utility programs useful for exploring these datasets.
Concrete and Mortar
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