Smoke Contribution Factor in Fire Hazard Classification of Building Materials

2009 ◽  
pp. 93-93-13
Author(s):  
J. H. Shern
Keyword(s):  
Building Materials ◽  
Fire Hazard ◽  
Hazard Classification ◽  
In Fire

Классификация строительных материалов по пожарной опасности

2020 ◽  
Author(s):  
Aleksey Shebeko ◽  
Nikolay Smirnov ◽  
Andrey Zuban
Keyword(s):  
Classification System ◽  
Building Material ◽  
Building Materials ◽  
Fire Hazard ◽  
Physical Nature ◽  
Classification Systems ◽  
Hazard Class ◽  
Hazard Classification ◽  
Definition Of ◽  
Dynamic Indicators

Рассмотрены системы классификации, используемые в отечественной и европейской практике оценки пожарной опасности строительных материалов, при этом применяются как идентичные, так и отличающиеся методы испытаний. Представлен критический анализ подходов к классификации строительных материалов по пожарной опасности и показана возможность использования результатов стандартных испытаний для прогнозирования их поведения при реальном пожаре. Отмечено, что действующая в России система противопожарного нормирования строительных материалов положительно зарекомендовала себя с точки зрения влияния на безопасность людей.The main differences of the fire hazard classification systems for building materials accepted in Russia and the EU countries are considered. It is shown that these classification systems are based on test results following both almost identical and significantly different methods. The analysis of the possibility of predicting the behaviour of building material in a real fire is carried out based on the results of standard fire hazard tests. It is concluded that the data obtained from the results of standard tests cannot be fully used to describe the thermal-oxidative decomposition and burning of building material in a real fire. The analysis of criticism of the domestic classification system described in the scientific literature for classifying building materials as different fire hazard classes is presented. The specified criticism is based on the assertion that the methods used in the framework of the Russian fire hazard classification system for building materials do not regulate the definition of so-called “dynamic” indicators during testing that characterizes a change in a given measured value during testing. It is shown that, firstly, the use of dynamic indicators does not lead to a more complete and adequate assessment of the fire hazard of building materials, and, secondly, the methods used in the framework of the European classification system for building materials by fire hazard have significant uncertainty, including parts of the definition of the above mentioned “dynamic” indicators. Criticism of the Russian fire hazard classification system of building materials is examined regarding the fact that within the framework of one fire hazard class, indicators are collected that by their physical nature are in no way correlated and interrelated. To this, an answer is given that, firstly, the concept of “fire hazard of building material” implies a comprehensive assessment of all indicators that can affect the behaviour of the material in case of fire, with a subsequent contribution to the formation of its dangerous factors and, secondly, such an approach to classification meets international best practices, and in particular European ones. It is noted that the long-standing practice of fire-rated building materials in Russia, based on the current classification, has shown its adequacy and correctness.

Towards the Translation and Classification of Building Materials Using Combustion Calorimetry

1997 ◽  
Vol 7 (1) ◽  
pp. 17-28 ◽  
Author(s):  
M. A. Azhakesan ◽  
T. J. Shields ◽  
G. W. H. Silcock
Keyword(s):  
Building Materials ◽  
Combustion Calorimetry

scholarly journals Classification of Post-Fire Responses of Woody Plants to include Pyrophobic Communities

Fire ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 15 ◽  
Author(s):  
Lynda D. Prior ◽  
David M. J. S. Bowman
Keyword(s):  
Woody Plants ◽  
Seed Banks ◽  
Classification Systems ◽  
Woody Vegetation ◽  
General Category ◽  
Conifer Species ◽  
Soil Seed Banks ◽  
Obligate Seeder ◽  
In Fire

Developing standardised classification of post-fire responses is essential for globally consistent comparisons of woody vegetation communities. Existing classification systems are based on responses of species growing in fire-prone environments. To accommodate species that occur in rarely burnt environments, we have suggested some important points of clarification to earlier schemes categorizing post-fire responses. We have illustrated this approach using several Australasian conifer species as examples of pyrophobic species. In particular, we suggest using the term “obligate seeder” for the general category of plants that rely on seed to reproduce, and qualifying this to “post-fire obligate seeder” for the narrower category of species with populations that recover from canopy fire only by seeding; the species are typically fire-cued, with large aerial or soil seed banks that germinate profusely following a fire, and grow and reproduce rapidly in order to renew the seed bank before the next fire.

Fire Hazard Factors of Residential-Commercial Composite Buildings through Fire Hazard Cases

2012 ◽  
Vol 468-471 ◽  
pp. 1753-1757
Author(s):  
Yang Wei Shao ◽  
Shih Feng Kao ◽  
Neng Chun Yu ◽  
Yu Shiang Wu ◽  
Chi Jan Huang ◽  
...  
Keyword(s):  
Social Issues ◽  
Fire Hazard ◽  
Professional Knowledge ◽  
Social Costs ◽  
Fire Prevention ◽  
Dense Population ◽  
Fire Hazards ◽  
Expert Review ◽  
Emergency Exit ◽  
In Fire

Although meeting the regulations of the time, early buildings are prone to fire hazards, such as damages to the fire zones, changes of floor entrances and exits, locked emergency exit doors, blocking of entrances and exits by vehicles, increased fire sources, dense population in the buildings, due to insufficient professional knowledge and technology in fire prevention. Once a fire occurs, it can result in major casualties, serious loss of social costs, as well as environmental and social issues. This study investigated 17 major fire cases occurring in residential-commercial composite buildings in the last 20 years in Taiwan. The fire hazard factors were determined based on expert review. The findings can serve as a reference for fire agencies in promoting fire prevention.

Study on Effect of Spheroidization on Hazardous Classification of ADN

2021 ◽  
Vol 881 ◽  
pp. 71-76
Author(s):  
Jian Yang ◽  
Hong Bin Li ◽  
Song Tao Ren ◽  
Peng Gang Jin ◽  
Zan Gao
Keyword(s):  
Temperature Stability ◽  
Impact Sensitivity ◽  
Classification Method ◽  
Ammonium Dinitramide ◽  
Classification Procedure ◽  
Research Results ◽  
Before And After ◽  
Hazard Classification ◽  
Friction Sensitivity

In order to determine the influence of spheroidization process of Ammonium dinitramide’s hazard grade, the hazardous division of Ammonium dinitramide before and after spheroidization is studied by using hazard classification procedure for combustible and explosive substances and articles standard (WJ20405) and hazard classification method and criterion for combusitible and explosive substances and articles standard (WJ20404). The research results show that spheroidization process can significantly improve the temperature stability of Ammonium dinitramide and significantly reduce friction sensitivity and impact sensitivity of Ammonium dinitramide. So spheroidization process can reduce the hazardous of Ammonium dinitramide and improve the safe character of Ammonium dinitramide.

On the Issue of Safe Use of Fiber Cement Materials in the Buildings and Structures

2021 ◽  
pp. 35-41
Author(s):  
N.I. Konstantinova ◽  
◽  
N.V. Smirnov ◽  
O.V. Krivoshapkina ◽  
O.I. Molchadskiy ◽  
...  
Keyword(s):  
Building Materials ◽  
Protective Coatings ◽  
Fire Hazard ◽  
Thermal Exposure ◽  
Test Methods ◽  
Test Method ◽  
Sand Mixture ◽  
Industrial Buildings ◽  
Experimental Complex ◽  
Combustible Materials

Fiber cement finishing materials are widely used in the construction of industrial buildings and structures due to the complex of valuable operational properties. In the Russian market there are fiber-cement panels with a variety of design solutions for their coloring and application of protective coatings. Fiber cement board is a strong and moisture-resistant composite material made from a cement-sand mixture, reinforcing cellulose fibers and special additives. Not being a non-combustible material, the fiber cement boards in accordance with the current mandatory requirements, as a decorative, finishing and facing material for walls and ceilings have restrictions on their use. Existing domestic requirements regarding the methodology for assessing the combustibility of fiber cement products largely narrow the field of using these materials. Therefore, it is advisable to develop the proposals for amending the test methods and the regulatory framework governing their fire-safe extended scope. In the course of this work execution, the main provisions of the regulatory and methodological framework that establish the requirements for the fire-safe use of fiber cement materials are analyzed. Experimental complex studies of fire hazard properties of various types of samples of the fiber cement finishing panels and slabs were carried out. It is established that fiber-cement materials belong to the class of the least fire-hazardous materials. Advisability is determined concerning the introduction to the national regulatory practice of GOST R «Building materials. Test method for fire hazard under thermal exposure with a single burner (SBI)». Classification parameters of the group of non-combustible materials NG2 were established to amend GOST R 57270—2016 (method 1). Classification parameters of the group of non-combustible materials NG2 for making changes in GOST R 57270—2016 (method 1) are established. Proposals were developed to expand the scope of application of the materials and products made of fiber cement as enclosing structures, partitions, and decorative finishes (cladding) in the buildings and structures.

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