Search Results - "Bentz, Dale P"

Influence of internal curing using lightweight aggregates on interfacial transition zone percolation and chloride ingress in mortars by Bentz, Dale P.

“…The microstructure of the interfacial transition zone (ITZ) between cement paste and aggregate depends strongly on the nature of the aggregate, specifically…”
Get full text

On the relation of setting and early-age strength development to porosity and hydration in cement-based materials by Lootens, Didier, Bentz, Dale P.

“…Previous research has demonstrated a linear relationship between compressive strength (mortar cubes and concrete cylinders) and cumulative heat release…”
Get full text

Influence of substrate moisture state and roughness on interface microstructure and bond strength: Slant shear vs. pull-off testing by Bentz, Dale P., De la Varga, Igor, Muñoz, Jose F., Spragg, Robert P., Graybeal, Benjamin A., Hussey, Daniel S., Jacobson, David L., Jones, Scott Z., LaManna, Jacob M.

“…There are conflicting views in the literature concerning the optimum moisture state for an existing substrate prior to the application of a repair material…”
Get full text

Reducing setting time of blended cement paste containing high-SO3 fly ash (HSFA) using chemical/physical accelerators and by fly ash pre-washing by Zunino, Franco, Bentz, Dale P., Castro, Javier

“…Reducing the carbon footprint of the cement industry has become one of the main concerns of researchers in the field. This study explores different strategies…”
Get full text

Influence of water-to-cement ratio on hydration kinetics: Simple models based on spatial considerations by Bentz, Dale P.

“…Based on simple spatial considerations, models to describe the hydration kinetics of portland cement are developed and compared to existing experimental data,…”
Get full text

Low-temperature curing strength enhancement in cement-based materials containing limestone powder by Bentz, Dale P., Stutzman, Paul E., Zunino, Franco

“…With the ongoing sustainability movement, the incorporation of limestone powder in cementitious binders for concrete in the U.S. has become a subject of…”
Get full text

Increasing the Service Life of Bridge Decks by Incorporating Phase-Change Materials to Reduce Freeze-Thaw Cycles by Sakulich, Aaron R, Bentz, Dale P

“…AbstractDuring a freezing event, pore solution in cementitious bodies expands and creates stresses that can cause damage; therefore, reducing the number of…”
Get full text

Optimization of cement and fly ash particle sizes to produce sustainable concretes by Bentz, Dale P., Hansen, Andrew S., Guynn, John M.

“…In the drive to produce more sustainable concretes, considerable emphasis has been placed on replacing cement in concrete mixtures with more sustainable…”
Get full text

D90: The Strongest Contributor to Setting Time in Mineral Trioxide Aggregate and Portland Cement by Ha, William N., BDSc, GCRC, Bentz, Dale P., BS, MS, MAT, Kahler, Bill, PhD, DClinDent, Walsh, Laurence J., DDSc, PhD

“…Abstract Introduction The setting times of commercial mineral trioxide aggregate (MTA) and Portland cements vary. It was hypothesized that much of this…”
Get full text

Activation energies of high-volume fly ash ternary blends: Hydration and setting by Bentz, Dale P.

“…Because ready-mixed concrete is placed under a wide variety of environmental conditions, the influence of temperature on the hydration reactions and the…”
Get full text

Quantitative comparison of real and CEMHYD3D model microstructures using correlation functions by Bentz, Dale P.

“…A quantitative comparison of real and computer-generated (model) cement paste microstructures based on the analysis of three-dimensional image sets is…”
Get full text

Limestone and silica powder replacements for cement: Early-age performance by Bentz, Dale P., Ferraris, Chiara F., Jones, Scott Z., Lootens, Didier, Zunino, Franco

“…Developing functional concrete mixtures with less ordinary portland cement (OPC) has been one of the key objectives of the 21st century sustainability…”
Get full text

Capillary Porosity Depercolation/Repercolation in Hydrating Cement Pastes Via Low-Temperature Calorimetry Measurements and CEMHYD3D Modeling by Bentz, Dale P.

“…Capillary porosity percolation in a hydrating cement paste has a large influence on transport properties and durability. Percolation can be examined using…”
Get full text

Evaluating the hydration of high volume fly ash mixtures using chemically inert fillers by De la Varga, Igor, Castro, Javier, Bentz, Dale P., Zunino, Franco, Weiss, Jason

“…•Isothermal calorimetry measurements are used to evaluate fly ash hydration.•The approach presented decouples the physical and chemical effects of fly…”
Get full text

Multi-scale investigation of the performance of limestone in concrete by Bentz, Dale P., Ardani, Ahmad, Barrett, Tim, Jones, Scott Z., Lootens, Didier, Peltz, Max A., Sato, Taijiro, Stutzman, Paul E., Tanesi, Jussara, Weiss, W. Jason

“…•The acceleration ability of fine limestone in cements depends on the polymorph.•Calcite provides favorable surfaces for nucleation and growth, aragonite does…”
Get full text

Fine limestone additions to regulate setting in high volume fly ash mixtures by Bentz, Dale P., Sato, Taijiro, de la Varga, Igor, Weiss, W. Jason

“…► Limestone additions reduce set retardation caused by fly ash in HVFA mixtures. ► Finer limestones provide a greater reduction in set times. ► These limestone…”
Get full text

Relationship Between Engineering Properties, Mineralogy, and Microstructure in Cement-Based Hydroceramic Materials Cured at 200°-350°C by Kyritsis, Konstantinos, Hall, Christopher, Bentz, Dale P., Meller, Nicola, Wilson, Moira A.

“…Cement‐based materials used to seal geothermal or deep oil wells are exposed to severe conditions. Optimizing engineering properties such as strength and…”
Get full text

Influence of particle size distributions on yield stress and viscosity of cement–fly ash pastes by Bentz, Dale P., Ferraris, Chiara F., Galler, Michael A., Hansen, Andrew S., Guynn, John M.

“…The rheological properties of blended cement-based materials depend strongly on mixture proportions and the characteristics of the components. In this study,…”
Get full text

Effect of the Interfacial Transition Zone on the Conductivity of Portland Cement Mortars by Shane, John D., Mason, Thomas O., Jennings, Hamlin M., Garboczi, Edward J., Bentz, Dale P.

“…The electrical conductivity of portland cement mortars was determined experimentally as a function of the volume fraction of sand and the degree of hydration…”
Get full text

Towards the formulation of robust and sustainable cementitious binders for 3-D additive construction by extrusion by Bentz, Dale P., Jones, Scott Z., Bentz, Isaiah R., Peltz, Max A.

“…•Sustainable binders incorporate limestone powder and a retarder/accelerator combination.•Matching limestone and cement surface area provides similar…”
Get full text