Influences of glass flakes on fire protection and water resistance of waterborne intumescent fire resistive coating for steel structure

2011 ◽  
Vol 70 (2-3) ◽  
pp. 150-156 ◽  
Author(s):  
Guojian Wang ◽  
Jiayun Yang
Keyword(s):  
Fire Protection ◽  
Water Resistance ◽  
Steel Structure ◽  
Resistive Coating

scholarly journals Influence of the Thermal Insulation Type and Thickness on the Structure Mechanical Response Under Fire Conditions

2019 ◽  
Vol 9 (13) ◽  
pp. 2606 ◽  
Author(s):  
Katarzyna Kubicka ◽  
Urszula Pawlak ◽  
Urszula Radoń
Keyword(s):  
Fire Protection ◽  
Fire Safety ◽  
Mechanical Response ◽  
Steel Structure ◽  
Truss Structures ◽  
Safety Level ◽  
Alarm Systems ◽  
Different Types ◽  
Tension Members ◽  
Fire Conditions

The concept of fire safety covers an extremely vast scope of issues. To ensure an adequate fire safety level, it is necessary to combine research and actions in several fields, such as the mathematical, physical, or numerical modelling of a fire phenomenon. Another problem is to design different types of fire protection, including alarm systems, sprinkler systems, and also roads and evacuation systems, in a manner that ensures maximum safety for the building’s users. A vital issue is the analysis of the static-strength response of the structure under fire conditions. This study, concerned with such analyses, is limited to steel truss structures. In technical approvals, manufacturers of fire-proofing materials do not account for the character of the performance of individual structural members. The components in compression need thicker insulation than those in tension. This phenomenon is related to the fact that under fire conditions, the flexural buckling coefficient in compressed members is abruptly reduced with an increase in temperature. In turn, this increase in temperature leads to a fast reduction in resistance. In addition, members in tension have much higher resistance than those in compression in the basic design situation, i.e., at the instant of t = 0 min. Consequently, even a considerable decrease in the resistance of tension members is not as dangerous as that of compression members. Therefore, due to the nature of the performance of individual elements, fire-proofing insulation of every steel structure should be computationally verified. Additionally, in this paper, the influence of the type of fire insulation on the mechanical response of the structure was investigated. Calculations were carried out for different types of sprayed-on insulation, and also for contour and box insulation panels. The graphs show the behaviour of the elastic modulus, the yield point, and the resistance of the elements in the successive minutes of the fire for the different methods of fire protection used. The best results were obtained for vermiculite and gypsum spray.

Alkaline Aluminosilicate Binder-Based Adhesives with Increased Fire Resistance for Structural Timber Elements

2019 ◽  
Vol 808 ◽  
pp. 172-176 ◽  
Author(s):  
Pavel V. Krivenko ◽  
Sergii G. Guzii ◽  
Olga P. Bondarenko
Keyword(s):  
Thermal Conductivity ◽  
Fire Resistance ◽  
Fire Protection ◽  
Water Resistance ◽  
Structural Timber ◽  
Reaction Products ◽  
Low Thermal Conductivity ◽  
Artificial Stone ◽  
Thermal Conductivity Λ ◽  
Astm E119

The paper presents data on the use of the alkaline aluminosilicate binder-based adhesive of the system Na2O•Al2O3•(4-6)SiO2•(17-20)H2O for gluing and fire protection of structural timber elements. The results of the study of thermoresistant phases in the reaction products of the alkaline aluminosilicates are reported and discussed. The results allowed to show that at SiO2/Al2O3 between 5 and 6 the zeolite-like phases of heulandite types, which, under action of temperatures, are able to form a porous aluminosilicate artificial stone with low thermal conductivity (λ=0.09 Wt/m•К, DSTU B V.2.7-105-2000 (GOST 7076-99)) are formed in the reaction products. The use of the developed aluminosilicate adhesives allow for to classify the structural timber elements as hardly burnable and hardly flammable materials (GOST 12.1.044-1989, EN 13823 + A1: 2014-12, ASTM E119-07). They have the following characteristics: water resistance D3 (EN 204:2001), resistance in splitting up 7.8 MPa (GOST 16483.5-1973), adhesion in normal pull-off test up to 2.6 MPa (GOST 32299-2013 (ISO 4624:2002)).

Design Study of Steel Structure Fire-Retardant Coatings under High Temperature (Fire) Conditions

2012 ◽  
Vol 594-597 ◽  
pp. 849-859
Author(s):  
Man Li Ou ◽  
Wei Jun Cao ◽  
Long Min Jiang ◽  
Hui Cao
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Fire Resistance ◽  
Fire Protection ◽  
Structural Damage ◽  
Fire Retardant ◽  
Steel Structure ◽  
Steel Structures ◽  
Strength And Stiffness ◽  
Fire Conditions

As the result of great changes occurring to mechanical properties under high temperature (fire) conditions, steel structures will soon lose the strength and stiffness and lead to structural damage. Through analysis of the steel structure fire resistance design methods under the conditions of high temperature (fire), this article explores the most used fire protection methods in steel structures—brushing or painting fire-resistant coatings, studies the fire-resistance theory of steel structure under fire conditions; in addition, the author proposes the reasonable thickness of the steel structure fire retardant coating of fire-resistant design through design examples.

scholarly journals Influence of graphene on fire protection of intumescent fire retardant coating for steel structure

2020 ◽  
Vol 6 ◽  
pp. 693-697
Author(s):  
Wang Zhan ◽  
Le Chen ◽  
Zhaozhan Gu ◽  
Juncheng Jiang
Keyword(s):  
Fire Protection ◽  
Fire Retardant ◽  
Steel Structure

scholarly journals Effect of Perlite on Fire Protection of Waterborne Coatings for Steel Structure

2020 ◽  
Vol 08 (12) ◽  
pp. 1-7
Author(s):  
Hao Huang ◽  
Xinguo Ge ◽  
Zejiang Zhang ◽  
Pingli Li ◽  
Tianhao Zhang
Keyword(s):  
Fire Protection ◽  
Steel Structure ◽  
Waterborne Coatings

scholarly journals Experimental Assessment of the Fire Resistance Mechanisms of Timber–Steel Composites

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 4003 ◽  
Author(s):  
Le ◽  
Tsai
Keyword(s):  
Fire Resistance ◽  
Fire Protection ◽  
Load Capacity ◽  
Construction Materials ◽  
Steel Structure ◽  
Resistance Mechanisms ◽  
Practical Implementation ◽  
Actual Performance ◽  
Steel Core ◽  
Destructive Processes

Hybrid structures known as timber–steel composites (TSCs) have been extensively studied due to their potential use as alternative construction materials that can satisfy demands related to sustainability. In addition to load capacity, fire resistance is a major consideration regarding the extensive use of TSCs. In this study, 12 specimens were tested using a glulam timber material covering cold-formed steel at the center. Specifically, the TSCs were fabricated from two timber blocks and an I-shaped steel core assembled using dowels or glue as a major structure. In order to use additional timber as a fire protection layer to protect a major structure by its charcoal produced after being burned, an additional timber with 5 cm in thickness was used to cover the major structure. The 1-h fire testing of TSC following the ISO 834-1 standard was applied, in order to achieve the potential application for a 4-story timber building. The results showed that temperatures at the steel flange increased by more than 300 °C for the final 5 min in 10 out of the 12 TSC specimens, indicating that the fire protection provided by the timber structure was not sufficient. The charcoal layer surpassing the extra timber was originally set and entered the steel structure of the TSC, which was expected to retain its physical qualities after a fire. Methods for evaluating the charring properties, based on the conventional method for wood and the standard specification set by Eurocode 5, were used to assess the structural degradation of TSCs. The conventional assessments showed a divergence from the actual performance of TSCs. Such variations demonstrated the limitations of models for conventional wood in assessing the structure of a TSC. A realistic assessment was conducted to expand knowledge related to this composite under destructive processes and provide fire reference values for the practical implementation of TSCs.

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