1. bookVolume 26 (2019): Issue 4 (December 2019)
Journal Details
License
Format
Journal
First Published
20 Dec 2019
Publication timeframe
4 times per year
Languages
English
access type Open Access

Application of Similarity Method of Distance Courses Describing the Elements Content in Cement Concrete After 50 Forced Thermal Cycles

Published Online: 24 Apr 2020
Page range: 155 - 162
Received: 27 Aug 2019
Accepted: 20 Dec 2019
Journal Details
License
Format
Journal
First Published
20 Dec 2019
Publication timeframe
4 times per year
Languages
English

The article presents material solution based on the application of ceramic dust as concrete mix component intended for airfield pavements. The applied dust influences the changes in internal structure of concrete composite. Diversification of internal microstructure of cement concrete using the suggested dust has significant influence on the improvement of compressive strength. The laboratory analyses included concretes curing in standard conditions and concretes subject to thermal cycles representing the destructive influence of imposed loading. Comparative SEM observations of concretes subject to 50 thermal cycles proved significant influence of dust on internal structure of composite. In the study 6 samples were selected, which, each time, were intended for the laboratory tests. The applied similarity analysis of distance courses in case of this concrete. Similarity indexes between input and target sequence were defined. Diagrams presenting the similarity of the analysed concretes were prepared (after 28 days of curing and after 50 thermal cycles). It was proved that the suggested method can be used to assess the elements content and define the similarity of concrete intended for airfield pavements in the selected of areas (cement matrix, contact area between fine aggregate and cement matrix, contact area between coarse aggregate and cement matrix and contact area between air voids and cement matrix).

Keywords

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