Application of similarity method of distance courses describing the elements content in typical cement concrete after thermal cycles

• Autorzy: Linek Małgorzata , Nita Piotr

Identyfikatory

DOI

10.2478/kones-2019-0104

• Języki publikacji: EN

Abstrakty

EN

The work concerns the use of similarity analysis of distance course. Composition of concrete mixes was designed. The cement concrete composition includes cement, coarse aggregate, fine aggregate, water and admixtures. The laboratory analyses included concretes curing in standard conditions and concretes subject to thermal cycles representing the destructive influence of imposed loading. Laboratory tests assumed the fifty thermal test cycles. A single test cycle included process of alternate heating and cooling. Recurrent influence of temperature stimulated the impact of aircraft on airfield pavements. The assumed heating and cooling time corresponded to the time during which the aircraft effected the most frequently used airfield pavement within the area of Poland. Comparative SEM observations of concretes subject to thermal cycles were conducted. An increase in the width of microcracs has been observed. In case of crystallization, there is diversification within the area of cement matrix, contact area between cement matrix and aggregate grains and in case of porosity characteristics of both concretes. 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 thermal cycles). It was proved that the suggested method could be used to define the similarity of concrete intended for airfield pavements.

Słowa kluczowe

EN

cement concrete; airfield pavement; analysis of similarity; thermal cycles

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2019
• Tom: Vol. 26, No. 4
• Strony: 163--170
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Linek Małgorzata

• Kielce University of Technology Faculty of Civil Engineering and Architecture Department of Transportation Engineering Tysiąclecia Państwa Polskiego Street 7, 25-314 Kielce, Poland tel.: [phone] e

autor

Nita Piotr

• Air Force Institute of Technology Ksiecia Boleslawa Street 6, 01-494 Warsaw, Poland tel.: [phone]

Bibliografia

• [1] Linek, M., Application of similarity method of distance courses describing the elements content in pavement quality concrete, Journal of KONES Powertrain and Transport, Vol. 24, No. 4, pp. 393-398, 2017.
• [2] Linek, M., Nita, P., Application of similarity method of distance courses describing the elements content in typical cement concrete, Journal of KONES Powertrain and Transport, Vol. 25, No. 4, pp. 239-246, 2018.
• [3] Linek, M., Surface concrete with improved parameters of physical and mechanical on the loads caused by forced temperature, PhD Thesis, Kielce 2013.
• [4] NO 17-A204:2015, Airfield concrete pavements – Requirements and test methods for cement concrete pavements, Polish Standard.
• [5] PN-EN 12390-1:2013, Testing hardened concrete – Part 1: Shape, dimensions and other requirements for specimens and moulds, Polish Standard.
• [6] PN-EN 12390-2:2011, Testing hardened concrete – Part 2: Making and curing speciments for strength tests, Polish Standard.
• [7] PN-EN 12390-3:2011, Testing hardened concrete – Part 3: Compressive strenth of test specimens, Polish Standard.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).