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You searched on: Author: dale bentz

Displaying records 121 to 130 of 202 records.
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121. Influence of Water-to-Cement Ratio on Hydration Kinetics: Simple Models Based on Spatial Considerations
Published: 2/1/2006
Author: Dale P Bentz
Abstract: sed on simple spatial considerations, models to describe the hydration kinetics of portland cement are developed and compared to existing experimental data, particularly in terms of the influence of the starting water-to-cement ratio (w/c) on hydrat ...

122. Modeling the Influence of Limestone Filler on Cement Hydration in CEMHYD3D
Published: 2/1/2006
Author: Dale P Bentz
Abstract: The ASTM C150 standard specification for portland cement now permits the addition of up to 5 % limestone filler. While these and much higher levels of limestone filler substitution have been employed in Europe and elsewhere for many years, the chang ...

123. Curing With Shrinkage-Reducing Admixtures Beyond Drying Shrinkage Reduction.
Published: 12/1/2005
Author: Dale P Bentz

124. Mixture Proportioning for Internal Curing.
Published: 12/1/2005
Authors: Dale P Bentz, Pietro Lura, J W Roberts

125. Replacement of Coarse" Cement Particles by Inert Fillers in Low w/c Ratio Concretes. Part 2. Experimental Validation. Communication.
Published: 12/1/2005
Author: Dale P Bentz

126. Towards a Methodology for the Characterization of Fire Protection Materials With Respect to Thermal Performance Models
Published: 10/12/2005
Authors: Dale P Bentz, Kuldeep R Prasad, Jiann C Yang
Abstract: A methodology is proposed for the characterization of fire protection materials with respect to thermal performance models. Typically in these models, materials are characterized by their densities, heat capacities, thermal conductivities, and any e ...

127. Low Temperature Calorimetry Studies of Hydrating Portland Cement Pastes
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7267
Published: 10/5/2005
Author: Dale P Bentz
Abstract: This report presents nearly 200 low temperature calorimetry (LTC) scans performed on hydrating portland cement pastes between 2002 and 2005. Because the LTC scans provide valuable information on the percolation of various size pore networks within t ...

128. CEMHYD3D: A Three-Dimensional Cement Hydration and Microstructure Development Modeling Package. Version 3.0.
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7232
Published: 6/8/2005
Author: Dale P Bentz
Abstract: This user s manual provides updated documentation and computer program listings for version 3.0 of the three-dimensional cement hydration and microstructure development model (CEMHYD3D) developed at the National Institute of Standards and Technology. ...

129. Measurement of Thermal Properties of Gypsum Board at Elevated Temperatures
Published: 5/30/2005
Authors: Samuel L Manzello, Seul-Hyun Park, Dale P Bentz, Tensei Mizukami
Abstract: The thermal conductivity, specific heat, mass loss, and linear contraction for gypsum board types widely used in the USA and Japan were measured both at room temperature and elevated temperatures. The gypsum board types tested include Type X and Typ ...

130. Replacement of Coarse Cement Particles by Inert Fillers in Low w/c Ratio Concretes II: Experimental Validation
Published: 1/1/2005
Author: Dale P Bentz
Abstract: Previously, it has been suggested that in low water-to-cement ratio (w/c) concretes, the coarser cement particles could be replaced by an inert filer with little loss in performance in terms of hydration and strength development. This communication p ...

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