Durability of recycled aggregate concrete in cold regions
Source abstract
Abstract
The combination of experimental programs and finite element numerical methods is adopted to explore the durability of WBC (waste brick concrete). Rapid freeze-thaw and flexural tests are performed with the content of WBCA (waste brick coarse aggregate) and the number of freeze-thaw cycles as variables. Freeze-thaw damage mechanisms at the microscopic interfaces of recycled concrete are revealed by scanning electron microscopy. The evolution laws of relative dynamic elastic modulus, mass loss rate, and flexural and tensile strength loss rate are analyzed. Combined with numerical simulations, the temperature stress distribution and three-point bending damage law of concrete with 100 % WBCA content at different freeze-thaw times are shown, and practical examples are verified. Results showed that WBC with high WBCA content has poor freeze-thaw resistance. Furthermore, WBC's freezing resistance and bending properties deteriorate as the number of freeze-thaw cycles increases. Possible damaged locations in the concrete are determined by stress analysis. The finite element model can predict the flexural performance of WBC better with an error of 4.5 % for the peak load and 3.5 % for the peak displacement of the beam. Therefore, the presented model can also be used to predict the performance of concrete after freezing and thawing under any WBCA replacement rate.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Recycled Aggregate Concrete Performance · Innovative concrete reinforcement materials · Structural Behavior of Reinforced Concrete
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. The utilization of eco-friendly recycled powder from concrete and brick waste in new concrete: a critical review10.1016/j.cemconcomp.2020.103807 ↗
2. Stress and strain state of concrete during freezing and thawing cycles10.1016/S0008-8846(02)00785-8 ↗
3. Proposal of poro-mechanical coupling among ASR, corrosion and frost action for damage assessment of structural concrete with water10.1016/j.engstruct.2019.03.036 ↗
4. F. Li, X. Zhang, H. Dong, J. Shen, The effect of recycled waste brick coarse aggregate on the properties of concrete, Concrete, no. 02, 2015, pp. 56–58+62.
5. Y. Ji, H. Zhang, R. Du, X. Zhang, W. Li, Experimental study on deterioration law of mechanical properties of recycled brick aggregate concrete, China Test.
6. Effects of admixtures on mechanics and frost resistance of recycled concrete three-hole bricks
7. Effects of crushed clay brick aggregate on mortar durability10.1016/j.conbuildmat.2008.09.006 ↗
8. Utilization of waste clay bricks as coarse and fine aggregates for the preparation of lightweight aggregate concrete10.1016/j.jclepro.2018.08.103 ↗
9. Concrete paving blocks and flags made with crushed brick as aggregate10.1016/j.conbuildmat.2011.10.036 ↗
10. Mechanical properties and permeability of fiber-reinforced concrete with recycled aggregate made from waste clay brick10.1016/j.jclepro.2020.121690 ↗
11. Research progress of multi scale on frost resistance of concrete
12. Three-dimensional meso-numerical simulation of heterogeneous concrete under freeze-thaw10.1016/j.conbuildmat.2020.118573 ↗
13. Experimental study and numerical simulation of seismic behavior for RC columns subjected to freeze-thaw cycles
14. Numerical simulation of static stress-strain relationship and failure mode for freeze-thaw concrete
15. Durability of steel fibre-reinforced recycled coarse aggregate concrete10.1016/j.conbuildmat.2019.117119 ↗
16. A.S. Gandage, V.V. Ram, A. Vasan, M.V.N. Sivakumar, A.B. Yaswanth, Effect of perlite on thermal conductivity of self compacting concrete, in: Proceedings of the 2nd Transportation Research Group of India Conference, 2013.10.1016/j.sbspro.2013.11.111 ↗
17. U. Albostan, Implementation of Coupled Thermal and Structural Analysis Methods for Reinforced Concrete Structures, Middle East Technical University, 2013.
18. D. Wang, Thermal Process and Design Optimization of Intermittent Heating Solar Buildings, Xi'an University of Architecture and Technology, 2012.
19. Thermal expansion prediction of cement concrete based on a 3D micromechanical model considering interfacial transition zone10.1016/j.conbuildmat.2018.03.132 ↗
20. Three-dimensional meso-scale modelling of failure of steel fiber reinforced concrete at room and elevated temperatures10.1016/j.conbuildmat.2021.122368 ↗
21. Raj · 2020 · 511
22. Basic mechanical properties and stress-strain relationship of recycled concrete containing broken red bricks
23. Damage constitutive relationship of brick-concrete recycled coarse aggregate concrete
24. Plastic-damage model for cyclic loading of concrete structures
25. Sun · 2013 · 05
26. Experimental study on flexural performance of recycled coarse aggregate concrete beams after freeze-thaw cycles
27. Backscattered electron imaging of cementitious microstructures: understanding and quantification10.1016/j.cemconcomp.2004.02.029 ↗
28. The effect of rough vs. smooth aggregate surfaces on the characteristics of the interfacial transition zone10.1016/j.cemconcomp.2019.03.001 ↗
29. Interfacial transition zones in recycled aggregate concrete with different mixing approaches10.1016/j.conbuildmat.2012.06.022 ↗
30. Research on carbonation properties of recycled concrete under axial stress
31. T.D. Tennis, M.L. Leming, D.J. Akers, Pervious Concrete Pavements, Portland Cement Association, Skokie, IL, 2004.
32. Methods for improving the microstructure of recycled concrete aggregate: a review10.1016/j.conbuildmat.2020.118164 ↗
33. Mechanical properties testing and damage evolution of concrete under freeze thawing environment