Evolution evaluation of high-speed railway asphalt concrete waterproofing layer during laboratory freeze–thaw cycles

Xin, Xiao Long; Li, Jin; Cai, Degou; Lou, Langhong; Shi, Yuefeng; Xiao, Feipeng

doi:10.1016/j.conbuildmat.2021.126258

Cited by 16 publications

(2 citation statements)

References 26 publications

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“…Because the external coating method is only applied on one side, it is required to make an advance prediction of the spots that are likely to have water leakage. 11,12 It places extremely rigorous requirements on architects and engineers of building safety systems. In the meantime, the internal mixing approach describes the process of incorporating a waterproofing agent into the formulation of concrete.…”

Section: Introductionmentioning

confidence: 99%

“…The formulation of the concrete does not need to be altered in any way for these procedures to be used, and existing building structures can be directly waterproofed using them. Because the external coating method is only applied on one side, it is required to make an advance prediction of the spots that are likely to have water leakage 11,12 . It places extremely rigorous requirements on architects and engineers of building safety systems.…”

Section: Introductionmentioning

confidence: 99%

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A ultra‐low viscosity stearic acid emulsion prepared by lauric acid as waterproof agent for cement mortar

Huang,

Wu,

Wang

et al. 2023

J of Applied Polymer Sci

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Safe building structures cannot be achieved without reliable waterproofing engineering. To address the susceptibility of concrete materials to water leakage, a low‐viscosity stearic acid emulsion has been developed as a waterproofing agent for mortar. By introducing lauric acid, the formation of stearic acid crystals in water could be effectively prevented, resulting in a stearic acid emulsion with a viscosity of only 24 mPa·s. It is found that the best overall performance was achieved when the ratio (R) of lauric acid to stearic acid was 2/3. This emulsion has the least effect on mortar fluidity and setting time. The as‐prepared modified mortar possessed the highest compressive strength (127% of the blank) and the lowest water absorption at 48 h (37% of the blank). X‐ray diffraction (XRD), Fourier‐transform infrared spectroscopy (FTIR), energy‐dispersive x‐ray spectroscopy (EDS), scanning electron microscopy (SEM), dynamic light scattering (DLS) particle size analysis, and water contact angle measurements were used to investigate the mechanism of stearic acid emulsion's modification. It is determined that the stearic acid emulsions successfully modified the internal and external hydrophobicity of the mortar by chemical action with calcium hydroxide.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%