concrete Archives - Thermtest Inc.

Estimation of the thermal properties of hardened cement paste on the basis of guarded heat flow meter measurements

Author(s): Donald E. Macphee, Mohammed S. Imbabi, Seyoon Yoon

A new analysis method based on the guarded heat flow meter apparatus is proposed to measure the thermal properties of cement-based pastes in a hydrated form. In a steady state, ...

Keywords: Cement, concrete, Contact resistance, GHF, Guarded Heat Flow meter Method, specific heat capacity, Steady state, Thermal Conductivity, Thermal Diffusivity, Transient

Lightweight clay-based concretes formulated withwood aggregates: hygrothermal behaviour

Author(s): A. Bouguerra, A. tWnt de Roodenbeke, Qubneudec M., R. M. Dheilly

Insulating materials were made from recycled clay waste using technologies developed by the author were tested for their thermal conductivity using the transient line source technique over a temperature range ...

Keywords: Clay, concrete, kaolinite, Lightweight Concrete, Thermal Conductivity, thermohygrometric, TLS, Transient Line Source, Wood

Thermal probe technology for buildings: the transition from laboratory to field measurements

Author(s): Brian Pilkington, Pieter de Wilde, Richard Griffiths, Steve Goodhew

This article describes an attempt to modify the transient line source probe to be useful in making in-situ measurements in the field. The field of construction, as well as many ...

Keywords: building materials, Cob, Cob blocks, concrete, earth buildings, energy, Materials properties, Thermal Conductivity, Thermal Conductivity Measurement, thermal probe, TLS, Transient Line Source

Mechanical and thermal performance of concrete and mortar cellular materials containing plastic waste

Author(s): Alberto López-Gil, Alfonso Fernández, Angel Arranz, Antolín Lorenzana, Daniel Velasco Nieto, Jose Antonio de Saja, José Luis Ruiz-Herrero, Miguel-Ángel Rodríguez-Pérez, Sonia Merino

The expanding production of polymeric materials is causing plastic waste to become a growing concern. This study aimed to fabricate cement and mortar composites that contained plastic in an attempt ...

Keywords: Cellular Solids, concrete, Induced porosity, Mortar, Plastic waste, Reused materials, Thermal Conductivity, thermal insulation, Transient plane source (TPS), Transient plane source (TPS) method

The use of slag stone concrete to improve the thermal performance of light steel buildings

Author(s): Djamel Beggas, Jahid Zeghiche

The purpose of this article was to investigate the thermal performance of light steel structures. Responsible and sustainable building practices are becoming the norm, and light steel can provide a ...

Keywords: building envelope, concrete, construction, light steel, slag stone concrete, sustainable construction, Thermal Conductivity, thermal performance

Numerical simulation of heat and mass transport during hydration of Portland cement mortar in semi-adiabatic and steam curing conditions

Author(s): Dale P. Bentz, E. Hernandez-Bautista, P. F. de J. Cano-Barrita, S. Sandoval-Torres

A numerical model is developed to describe the thermal conductivity, hydration, and moisture content of Portland cement mortar specimens. In order to develop the model, the thermal conductivity and specific ...

Keywords: Cement, concrete, Heat Capacity, Isothermal Calorimetry, Magnetic Resonance Imaging, Magnetic Resonance Imaging (MRI), MRI, NMR, Nuclear Magnetic Resonance, Nuclear magnetic resonance (NMR), Thermal Conductivity, X-Ray Fluorescence

Possibilities of using thermal mass in buildings to save energy, cut power consumption peaks and increase the thermal comfort

Author(s): Jonathan Karlsson

The work presented in this thesis was performed in order to generate knowledge of heat storage in building structures. The goal was to discover what material could most effectively reduce ...

Keywords: building materials, concrete, construction, Thermal Conductivity, Thermal Diffusivity, TPS Technique, Transient Plane Source, Transient plane source (TPS) method, Volumetric Heat Capacity

Influence of the volume fraction and the nature of fine lightweight aggregates on the thermal and mechanical properties of structural concrete

Author(s): A. Noumowe, A.-L. Beaucour, L. H. Nguyen, S. Ortola

The thermal and mechanical properties of concrete in which normal weight aggregate has been substituted with lightweight aggregates were investigated. The properties were found to be dependent on the volume ...

Keywords: concrete, construction, density, Pore Size Distribution, porosity, Specific Heat, Structural, Thermal Conductivity, Thermal Diffusivity, TPS Technique, Transient Plane Source, Transient plane source (TPS) method, Water Absorption, X-ray Diffraction, X-ray diffraction (XRD), XRD

Effect of a micro-copolymer addition on the thermal conductivity of fly ash mortars

Author(s): A. Duran-Herrera, Dale P. Bentz, J. K. Campos-Dimas, P. L. Valdez-Tamez

A Portland cement-based composite was made using a copolymer as one of the ingredients, and the potential of the composite for the production of non-structural masonry systems was evaluated. It ...

Keywords: Cement, Compressive Strength, concrete, density, Laser Diffraction, Thermal Conductivity, Transient Plane Source Technique

Incorporation of Phase Change Materials in Cementitious Systems via Fine Lightweight Aggregate

Author(s): A. R. Sakulich, Dale P. Bentz

The incorporation of phase change materials (PCMs) into concrete bridge decks shows promise as a method of decreasing freeze/thaw cycling in bridge decks. The authors have conducted a study ...

Keywords: Bridge Decks, Compressive Strength, concrete, construction, density, Isothermal Calorimetry, pcms, phase change materials, Thermal Conductivity, TPS Analysis, Transient Plane Source, Transient Plane Source (TPS) Analysis, Volumetric Heat Capacity

Keyword: concrete