In the present study, the effect of nylon fiber (NF) on the permeability as well as the mechanical properties of concrete incorporating 100% recycled coarse aggregate (RA) was experimentally investigated. Concrete was produced by adding 0, 0.6 and 1.2 kg/m3 of NF and then cured in water for the pre-determined period. Measurements of compressive strengths, ultrasonic pulse velocity and total charge passed through concrete were carried out, and the corresponding test results were compared to those of concrete incorporating natural coarse aggregate (NA). Test results indicated that recycled coarse aggregate concrete (RAC) showed lower performance than natural coarse aggregate concrete (NAC) because of the adhered mortars in RA. However, it was obvious that the addition of NF in RAC mixtures was much effective in enhancing the performance of the concretes due to the crack bridging effect from NF. In particular, high content of NF (1.2 kg/m3) led to a beneficial effect on concrete properties compared to low content of NF (0.6 kg/m3) with respect to mechanical properties and permeability, especially for RAC mixtures.
Performance of Recycled Coarse Aggregate Concrete with Different Nylon Fiber Content
Lecture Notes in Civil Engineering
2019-10-11
6 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Recycled Coarse Aggregate , Nylon Fiber , Mechanical Properties , Permeability Engineering , Geoengineering, Foundations, Hydraulics , Sustainable Development , Landscape/Regional and Urban Planning , Structural Materials , Building Construction and Design , Transportation Technology and Traffic Engineering
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