Fire testing Archives - Thermtest Inc.

Autoclaved aerated concrete: experimental evaluation of its thermal properties at high temperatures

Author(s): Lorenzo Moro, Manuela Campanale

This article studied the thermal conductivity of samples of autoclaved aerated concrete with various densities at high temperatures in order to produce data that could be used to assess and ...

Keywords: , autoclaved aerated concrete, building materials, concrete, construction, fire simulation modelling, Fire testing, High Temperature, Hot Disk TPS, Mica, Thermal Conductivity, Thermal Diffusivity

Effect of Temperature on Thermal and Mechanical Properties of Steel Bolts

Author(s): Sonali Kand, Venkatesh Kodur, Wasim Khaliq

High-strength steel used in bolts was tested for its thermo-physical properties in order to determine how steel bolts would respond in a fire. It was determined that the thermal and ...

Keywords: coefficient of thermal expansion, Coefficient of thermal expansion (CTE), Fire testing, Shear Strength, Specific Heat, Steel Bolts, tensile strength, Thermal Conductivity, TPS Technique, Transient Plane Source, Transient plane source (TPS) method

Measurement of Thermal Properties of Gypsum Board at Elevated Temperatures

Author(s): Dale P. Bentz, Samuel L. Manzello, Suel-Hyun Park, Tensei Mizukami

An investigation was conducted to determine the thermal properties of different types of gypsum boards from the USA and Japan. The thermal conductivity and specific heat were determined at room ...

Keywords: differential scanning calorimetry, Differential scanning calorimetry (DSC), DSC, Fire testing, Gypsum Boards, Hot Disk Thermal Constants Analyzer, Linear Contraction, Mass loss, Slug Calorimeter, Specific Heat, Thermal Conductivity, Transient Plane Source Technique

Studying the effect of addition a composite of silanized Nano-Al2O3 and plasma treated polypropylene fibers on some physical and mechanical properties of heat cured PMMA denture base material

Author(s):

The authors have presented a method for the addition of alumina nanoparticles and polypropylene fibers to a poly(methyl methacrylate) (PMMA) matrix. This composite material shows promise for use as ...

Keywords: Compression and Shear Strength, Fire Modeling, Fire testing, Hot Disk, Iso-Thermal Compression Creep Rupture, Shear Creep Compliance, Structural Composites, Transient plane source (TPS) method

Mechanistic Approach to Structural Fire Modeling of Composites

Author(s): John J. Lesko, John V. Bausano, Scott W. Case, Steven E. Boyd

A thermo-mechanical property model for composites subjected to fire loading conditions was developed for the purpose of reducing testing time for prediction of the performance of new materials. The thermal ...

Keywords: Compression and Shear Strength, Fire Modeling, Fire testing, Hot Disk, Hot Disk System, Iso-Thermal Compression Creep Rupture, Shear Creep Compliance, Structural Composites, TPS Technique, Transient Plane Source, Transient plane source (TPS) method

Aggregate’s influence on thermophysical concrete properties at elevated temperature

Author(s): Albert Noumowe, Anne-Lise Beaucour, Beatrice Ledesert, Ronan Hebert, Zhi Xing

The thermal and physical properties of concrete were investigated at high temperature to determine how these properties might change in the event of a fire. The influence of the type ...

Keywords: concrete, Fire testing, Hot Disk Device, Thermal Conductivity, TPS Method, Transient Plane Source, Transient plane source (TPS) method, Water Porosity

Thermal degradation and fire performance of intumescent silicone-based coatings

Author(s): B. Gardelle, S. Bourbigot, S. Duquesne, V. Rerat

Intumescent paints protect steel structures from fires by creating insulative foams when heated above a critical temperature. This paper examines the fire resistance capabilities of phenyl silicone coatings in comparison ...

Keywords: Coatings, Fire performance, Fire testing, Hot Disk, Polydimethylsiloxane, Silicone, Thermal barrier, Thermal Conductivity, thermal degradation, Torch test, Transient Plane Source

Investigation of the synergy in intumescent polyurethane by 3D computed tomography

Author(s): C. Lindsay, G. Giannini, J. Vlassenbroeck, M. Muller, R. Klein, S. Bourbigot, S. Duquesne

In order to investigate the morphology of intumescent polyurethane (PU), X-ray tomography is used. Nano MgO was added to some of the chars as a synergist. The results of the ...

Keywords: Fire testing, Heat Conductivity, Hot Disk Thermal Constants Analyzer, Intumscent Polyurethane, Mass Loss Calorimeter, transient plane source method, X-Ray Computed Tomography

Using the TPS method for determining the thermal properties of concrete and wood at elevated temperature

Author(s): Bijan Adl-Zarrabi, Lars Bostrom, Ulf Wickstrom

Using the transient plane source (TPS) technique, the thermal conductivity and thermal diffusivity of concrete and wood samples were measured at elevated temperatures. The measured values are compared to established ...

Keywords: building materials, concrete, Elevated Temperature Measurements, Fire testing, Temperature, Thermal Conductivity, Thermal Diffusivity, TPS Technique, Transient Plane Source, Transient plane source (TPS)

Flame retardancy through carbon nanomaterials: carbon black, multiwall nanotubes, expanded graphite, multi-layer graphene and graphene in polypropylene

Author(s): Bernhard Schartel, Bettina Dittrich, Daniel Hofmann, Karen-Alessa Wartig, Rolf Mulhaupt

This research aims to determine the effect of altering filler particle sizes and shapes, on the thermal and mechanical properties of polypropylene (PP). Fillers such as thermally reduced graphite oxide (...

Keywords: carbon, carbon black, CB, EG, expanded graphite, Expanded graphite (EG), Fillers, Fire testing, flame retardancy, graphene, graphite, heat absorption, influence of carbon additives, isotactic, mechanical properties, MLG250, morphologies, multi-layer graphene, multi-layer graphene (MLG250), multiwall nanotubes, multiwall nanotubes (MWNT), MWNT, nanomaterials, Nanoparticles, particle size, polypropylene, Temperature, thermally reduced graphite oxide, thermally reduced graphite oxide (TRGO), TRGO, uniformity dispersion, viscosity

Keyword: Fire testing