- Tytuł:
- Analysis of Rheological Properties of Cement Composites Based on Waste Materials
- Autorzy:
-
Zakrzewski, Mateusz
Domski, Jacek - Powiązania:
- https://bibliotekanauki.pl/articles/27322945.pdf
- Data publikacji:
- 2023
- Wydawca:
- Politechnika Koszalińska. Wydawnictwo Uczelniane
- Tematy:
-
cement composites
creep
steel cord
fiber-reinforcement concrete
long-term study
concrete beams
waste aggregate
waste fibers
crack - Opis:
- This report presents the results and analysis of long-term properties of fiber-reinforced cement composite based on waste aggregate. The long-term tests were carried out on the stand proposed by the authors for simultaneously testing three beams with dimensions of 100x200x2900 mm. A total of 8 mixtures of cement composites with aggregate from ceramic waste and waste sand were tested. Three beams were made for each mixture. One without dispersed reinforcement and two with 0.5% and 1.0% fiber reinforcement ratios. As dispersed reinforcement, steel cord and hooked steel fibers were used. The beams were subjected to a four-point bending test. The research was carried out for 1000 days. An optical system was used as an innovative solution in long-term research. Based on the measurements, the creep coefficient in the mid-span of the beams was determined, and the crackings of the beams were analysed. The results obtained using manual measuring devices and the optical system were compared. A good convergence of measurement methods was observed. During the analysis of the results, the coefficients modifying the method for calculating the crack width included in Eurocode 2 were determined.
- Źródło:
-
Rocznik Ochrona Środowiska; 2023, 25; 159--173
1506-218X - Pojawia się w:
- Rocznik Ochrona Środowiska
- Dostawca treści:
- Biblioteka Nauki
Artykuł