Safety and Effect of Fly Ash Content on Mechanical Properties and Microstructure of Green Low-Carbon Concrete
Source abstract
Abstract
Based on the promotion and application of green and low-carbon technology, this study aims to develop a high-safety performance cement concrete incorporating a large dosage of fly ash (FA). The safety and effect of FA content on the mechanical properties of FA composited cement were studied through compressive strength, flexural strength, and microscopic tests. The results show that when the FA replaced 20% cement, the properties of concrete were the best in this study. The flexural strengths and compressive strengths of the standard cured concrete for 28 days with 20% FA content are 0.82 MPa and 4.32 MPa larger than that of the pure cement concrete. The XRD and SEM analysis suggested that the mechanical properties of the composite cement FA system are improved significantly since the replacement of cement by FA promotes secondary hydration of calcium hydroxide in the concrete, leading to a more compact and safe interface between cement and FA.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Innovative concrete reinforcement materials · Recycling and utilization of industrial and municipal waste in materials production
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
China Academy of Safety Science and Technology, Beijing 100012, China
School of Materials Science & Engineering, North Minzu University, Yinchuan 750021, China
Funding
Key Research and Development Program in Ningxia Hui Autonomous Region · Key Research and Development Program in Xinjiang Uygur Autonomous Region
References (41)
Show source-provided references
1. Laboratory investigation on performance of waste-oil cutback asphalt as prime coat on cement stabilized macadam base10.1016/j.conbuildmat.2022.129965 ↗
2. Global strategies and potentials to curb CO2 emissions in cement industry10.1016/j.jclepro.2012.10.049 ↗
3. Evolution and projection of CO2 emissions for China’s cement industry from 1980 to 202010.1016/j.rser.2017.02.006 ↗
4. Thumrongvut, J., Seangatith, S., Phetchuay, C., and Suksiripattanapong, C. (2022). Comparative Experimental Study of Sustainable Reinforced Portland Cement Concrete and Geopolymer Concrete Beams Using Rice Husk Ash. Sustainability, 14.10.3390/su14169856 ↗
5. Empirical assessing cement CO2 emissions based on China’s economic and social development during 2001–203010.1016/j.scitotenv.2018.10.371 ↗
6. Potential energy savings and CO2 emissions reduction of China’s cement industry10.1016/j.enpol.2012.03.036 ↗
7. Geographies of energy transition: Space, place and the low-carbon economy10.1016/j.enpol.2012.10.066 ↗
8. The influence of mineral admixtures on resistance to corrosion of steel bars in green high-performance concrete10.1016/j.cemconres.2004.01.008 ↗
9. Ultra-high performance concrete history and usage by the Corps of Engineers10.1520/ACEM20140031 ↗
10. A novel development of green ultra-high performance concrete (UHPC) based on appropriate application of recycled cementitious material10.1016/j.jclepro.2020.121231 ↗
11. Effect of loading rate on failure characteristics of asphalt mixtures using acoustic emission technique10.1016/j.conbuildmat.2022.129835 ↗
12. Mechanical and durability properties of recycled aggregate concrete: Effect of recycled aggregate properties and content10.1061/(ASCE)MT.1943-5533.0002142 ↗
13. A comprehensive review on effects of mineral admixtures and fibers on engineering properties of ultra-high-performance concrete10.1016/j.jobe.2021.103314 ↗
14. Effects of different composite mineral admixtures on the early hydration and long-term properties of cement-based materials: A comparative study10.1016/j.conbuildmat.2021.123547 ↗
15. Wang, L., Yao, Y., Li, J., Tao, Y., and Liu, K. (2022). Review of Visualization Technique and Its Application of Road Aggregates Based on Morphological Features. Appl. Sci., 12.10.3390/app122010571 ↗
16. Numerical Investigation of Aggregate Segregation of Superpave Gyratory Compaction and Its Influence on Mechanical Properties of Asphalt Mixtures10.1061/(ASCE)MT.1943-5533.0004604 ↗
17. The effects of compaction methods and mix parameters on the properties of roller compacted concrete mixtures10.1016/j.conbuildmat.2019.116807 ↗
18. Effect of nano-clay on workability, mechanical, and durability properties of self-consolidating concrete containing mineral admixtures10.1016/j.conbuildmat.2018.10.044 ↗
19. Development of an eco-friendly Ultra-High Performance Concrete (UHPC) with efficient cement and mineral admixtures uses10.1016/j.cemconcomp.2014.09.024 ↗
20. Effects of waterproofing admixture on the compressive strength and permeability of recycled aggregate concrete10.1016/j.jobe.2020.101521 ↗
21. Influence of magnesium slag as a mineral admixture on the performance of concrete10.1016/j.conbuildmat.2021.123619 ↗
22. Performance of high volume fly ash concrete incorporating additives: A systematic literature review10.1016/j.conbuildmat.2020.120606 ↗
23. Trends in utilization of coal fly ash in India: A review
24. Zhang, Y., Liu, M., Xie, H., and Wang, Y. (2014). Environment, Energy and Applied Technology, Proceedings of the 2014 International Conference on Frontier of Energy and Environment Engineering (ICFEEE 2014), Taipei City, Taiwan, 6–7 December 2014, Taylor & Francis Group.
25. The potential of FBC fly ashes to reduce CO2 emissions10.1038/s41598-020-66297-y ↗
26. Effects of chemical composition of fly ash on compressive strength of fly ash cement mortar10.1016/j.conbuildmat.2019.01.208 ↗
27. Sustainable criterion selection framework for green building materials—An optimisation based study of fly-ash Geopolymer concrete
28. Green concrete with high-volume fly ash and slag with recycled aggregate and recycled water to build future sustainable cities10.1061/(ASCE)MT.1943-5533.0001748 ↗
29. Effects of combined usage of GGBS and fly ash on workability and mechanical properties of alkali activated geopolymer concrete with recycled aggregate10.1016/j.compositesb.2018.11.067 ↗
30. Application of coal ash to postmine land for prevention of soil erosion in coal mine in Indonesia: Utilization of fly ash and bottom ash10.1155/2016/8386598 ↗
31. Evaluation of the performance and microstructure of ecofriendly construction bricks made with fly ash and residual rice husk ash10.1155/2015/891412 ↗
32. Review on cement stabilization/solidification of municipal solid waste incineration fly ash10.1155/2018/5120649 ↗
33. Freeze-thaw resistance of normal and high strength concretes produced with fly ash and silica fume10.1155/2015/830984 ↗
34. Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars10.1016/j.conbuildmat.2020.119677 ↗
35. Al-Mansour, A., Chow, C.L., Feo, L., Penna, R., and Lau, D. (2019). Green concrete: By-products utilization and advanced approaches. Sustainability, 11.10.3390/su11195145 ↗
36. Recycling of rice husk waste for a sustainable concrete: A critical review10.1016/j.jclepro.2021.127734 ↗
37. Golewski, G.L. (2023). Combined Effect of Coal Fly Ash (CFA) and Nanosilica (nS) on the Strength Parameters and Microstructural Properties of Eco-Friendly Concrete. Energies, 16.10.3390/en16010452 ↗
38. Monte Carlo simulations of deformation behaviour of unbound granular materials based on a real aggregate library10.1080/10298436.2023.2165650 ↗
39. Technical and environmental performance of lower carbon footprint cement mortars containing biomass fly ash as a secondary cementitious material10.1016/j.resconrec.2018.03.004 ↗
40. Investigation on a green olivine nano-silica source based activator in alkali activated slag-fly ash blends: Reaction kinetics, gel structure and carbon footprint10.1016/j.cemconres.2017.06.007 ↗
41. Effect of addition of sawdust ash to clay bricks10.1080/10286600600763149 ↗