journal article·2019-12Open access

Effects of surface states on salt-frost scaling resistance of cement concrete

Hui Zhang, Peiwei Gao, Youqiang Pan, Zhixiang Zhang

Abstract

This study discussed influences of surface states of concrete on salt-frost durability. By using the Capillary suction of Deicing solution and Freeze-thaw test method(CDF), the effects of factors, such as solution saturation in capillary, surface property and load coupling were compared and analyzed. It is found that drying shrinkage exerts greater effects on salt-frost resistance of the concrete in comparison with solution saturation in capillary. According to the CDF test standard recommended by RILEM, the salt-frost test results of the surface formed with the partitions in the laboratory overestimate salt-frost resistance of the concrete in the actual situation. Scaled mass of the top surface of the molded concrete due to salt frost is about 50% larger than that of the surface formed with the partitions. Coupling effects of repeated load and salt-freezing cycles can aggravate salt-frost damages of the concrete.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Concrete and Cement Materials Research · Innovative concrete reinforcement materials · Smart Materials for Construction

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (16)

Show source-provided references
1. Mechanisms of air entrainment in concrete10.1016/j.cemconres.2004.07.026 ↗
2. Influence factors of frost-salt resistance of cement concrete
3. Theory of volume change in hardened Portland cement pastes during freezing
4. Mechanisms of deicer frost scaling of concrete (I)- capillary uptake degree of saturation and Ice2Formation pressure
5. Analysis on the air-void system test methods of concrete
6. Frost resistant concrete10.1016/0950-0618(95)00067-4 ↗
7. Pigeon · 1995
8. Efficiency of sealers to prevent the deicer salt scaling resistance of concrete
9. Determination of the optimum conditions for de-icing salt scaling resistance of concrete by visual examination and surface scaling
10. Determination of the optimum conditions for de-icing salt scaling resistance of concrete by visual examination and surface scaling
11. Modeling of frost salt scaling10.1016/j.cemconres.2007.09.003 ↗
12. Surface treatments for concrete: assesment methods and reported performance10.1016/S0950-0618(97)00019-6 ↗
13. Hager · 1996 · 361
14. Zhang · 2014
15. Research on test method for scaling resistance of deicing chemicals
16. Research on deicer-frost resistance of pavement concrete under repeated load