ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 53, (3) 216 - 224 (2009)


PREDICTION OF THE RISKS OF DESIGN AND DEVELOPMENT OF NEW BUILDING MATERIALS BY FUZZY INFERENCE SYSTEMS
 
Vymazal Tomáš 1, Žižková Nikol 2, Misák Petr 1
 
1 Brno University of Technology, Faculty of Civil Engineering, Institute of Building Testing, Veveří 95, Brno
2 Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveří 95, Brno

Keywords: Fuzzy inference systems, Polymer-cemented adhesive agent, Secondary raw material
 

We dealt with a process of design and development of new building materials based on the secondary raw materials. The secondary raw materials can, due to their variable properties, unpredictably influence physico mechanical characteristic of the resulting material. In order to eliminate these risks, many preventive methods are applied. The best-known method is FMEA (Failure Mode and Effects Analysis). The work was performed in two parts. The first part deals with mathematical models of tensile cohesion in dependence on percentage substitution of fly ash for milled limestone using fuzzy logic theory. In the second part the possibilities of an extension of FMEA methodology by using fuzzy inference systems (FIS) is shown. Practical applications show that using FIS for modelling of physico-mechanical properties of materials with secondary raw substances and for quantification of risks is acceptable.


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