Effect of fly ash content on the performance of hardened cement-based materials suffered from high temperatures
Source abstract
Abstract
Fire resistance is an important performance for cement-based materials used in constructions and buildings. In this work, the properties of the hardened cement pastes (HCP) and mortars blended with 0–50% fly ash (FA) suffered from high temperatures were investigated, including mass loss, mechanical strength, deformation, and the evolution of mineral phase, micromorphology and pore structure. Results showed that the increase of FA content did not change the mineral phase evolution of HCP during continuous heating. According to the mass loss, crack temperature, and microstructure evolution of HCP suffered from high temperatures, it was concluded that the increase of FA content effectively improved their resistance to high temperatures. However, this positive effect of FA was not reflected in the mortars exposed to high temperatures, as the crystal transformation of quartz played a critical role.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fire effects on concrete materials · Concrete and Cement Materials Research · Concrete Properties and Behavior
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
Show source-provided references
1. Grenfell Tower Fire: Seventy-Nine People Feared Dead. BBC News, 19 June 2017.
2. Blast resistance of hybrid steel and polypropylene fibre reinforced ultra-high performance concrete after exposure to elevated temperatures10.1016/j.compstruct.2022.115771 ↗
3. Experimental study on the free expansion deformation of concrete during the cooling process after being heated to high temperature10.1016/j.conbuildmat.2022.127617 ↗
4. In situ monitoring the deterioration processes of hardened cement pastes and mortars exposed to continuous heating10.1016/j.conbuildmat.2018.10.149 ↗
5. Effect of temperature on the physico-mechanical and mineralogical properties of Homra pozzolanic cement pastes10.1016/S0008-8846(00)00403-8 ↗
6. Composition and microstructural changes of cement pastes upon heating, as studied by neutron diffraction10.1016/S0008-8846(03)00229-1 ↗
7. The use of thermal analysis in assessing the effect of temperature on a cement paste10.1016/j.cemconres.2004.06.015 ↗
8. Quantitative analysis of phase transition of heated Portland cement paste10.1007/s10973-012-2600-3 ↗
9. A review on fly ash from coal-fired power plants: chemical composition, regulations, and health evidence10.1515/reveh-2019-0039 ↗
10. Assessment of blended coal source fly ashes and blended fly ashes
11. Evaluation and beneficiation of high sulfur and high alkali fly ashes for use as supplementary cementitious materials in concrete10.1016/j.conbuildmat.2022.127672 ↗
12. Improving durability of heat-cured high volume fly ash cement mortar by wet-grinding activation10.1016/j.conbuildmat.2021.123157 ↗
13. Prediction of compressive strength development for blended cement mortar considering fly ash fineness and replacement ratio10.1016/j.conbuildmat.2020.121532 ↗
14. Predicting the chloride diffusion in concrete incorporating fly ash by a multi-scale model10.1016/j.jclepro.2021.129767 ↗
15. Effect of fly ash on compressive strength and chloride binding of seawater-mixed mortars
16. Influence of fly ash fineness on strength, drying shrinkage and sulfate resistance of blended cement mortar10.1016/j.cemconres.2003.11.021 ↗
17. Low carbon cementitious materials: Sodium sulfate activated ultra-fine slag/fly ash blends at ambient temperature10.1016/j.jclepro.2020.124363 ↗
18. High temperature resistance of a very high volume fly ash cement paste10.1016/j.cemconcomp.2013.09.010 ↗
19. Behavior of composite cement pastes containing microsilica and fly ash at elevated temperature10.1016/j.conbuildmat.2012.09.069 ↗
20. The effect of high temperature on the compressive strength of mortars10.1016/j.conbuildmat.2012.02.082 ↗
21. Fire resistance of high-volume fly ash mortars with nanosilica addition10.1016/j.conbuildmat.2012.05.028 ↗
22. The effect of high temperature on compressive strength and splitting tensile strength of structural lightweight concrete containing fly ash10.1016/j.conbuildmat.2007.07.033 ↗
23. Effect of high temperature on the properties of ternary blended cement pastes and mortars10.1007/s10973-015-4817-4 ↗
24. Physicochemical, mineralogical, and morphological characteristics of concrete exposed to elevated temperatures10.1016/S0008-8846(01)00736-0 ↗
25. A two-scale thermomechanical computational model for reinforced concrete frames10.1016/j.engstruct.2015.09.041 ↗
26. Effect of fire exposure on physico-mechanical and microstructural properties of concrete containing high volume slag cement10.1016/j.conbuildmat.2019.04.079 ↗
27. The microstructural change of C-S-H at elevated temperature in Portland cement/GGBFS blended system10.1016/j.cemconres.2019.05.018 ↗
28. Investigation of the structure of heated Portland cement paste by using various techniques10.1016/j.conbuildmat.2012.09.071 ↗
29. Microstructure Analysis of Heated Portland Cement Paste10.1016/j.proeng.2011.07.105 ↗
30. Development of low-carbon materials from GGBS and clay brick powder for3D concrete printing10.1016/j.conbuildmat.2023.131232 ↗
31. Interlayer adhesion of 3D printed concrete: Influence of layer stacked vertically10.1016/j.conbuildmat.2023.132424 ↗
32. Cementitious characteristics of hydrated cement paste subjected to various dehydration temperatures10.1016/j.conbuildmat.2007.10.016 ↗
33. Behavior of blended cement mortars containing nano-metakaolin at elevated temperatures10.1016/j.conbuildmat.2012.04.099 ↗
34. Effect of high temperature on high-volume fly ash concrete10.1007/s13369-013-0606-1 ↗
35. Transport properties of high volume fly ash or slag concrete exposed to high temperature10.1016/j.conbuildmat.2017.07.051 ↗
36. The Effects of Supplementary Cementitious Materials (SCMs) on the Residual Mechanical Properties of Concrete after Exposure to High Temperatures—Review10.3390/buildings13010103 ↗
37. Comparison of the strength and durability performance of normal-and high-strength pozzolanic concretes at elevated temperatures10.1016/S0008-8846(01)00580-4 ↗
38. Mehta · 2014
39. S. Hachemi, Study of the behavior of concrete subjected to high temperature: Influence of the type of concrete and the nature of the constituents. Thesis of Science Doctorate in Civil Engineering, University of Biskra, Biskra, 2015.
40. Effect of Elevated Temperature on Mechanical Properties of Limestone, Quartzite and Granite Concrete10.1007/s40069-016-0175-2 ↗
41. The influence of sand nature on the residual physical and mechanical properties of concrete after exposure to elevated temperature10.1080/19648189.2017.1327893 ↗
42. Enhancing the performance of concrete after exposure to high temperature by coarse and fine waste fire brick: An experimental study10.1016/j.conbuildmat.2023.130356 ↗