Influence of Temperature on Concentration of Soluble Chloride Ion in Mortar

【Author】

Junzhe Liu;Rui Liu;Yi Jiang;Zhimin He;Mingfang Ba;

【Abstract】

<正>The adsorption and binding mechanisms of chloride ion in sea sand mortars were investigated through measuring the water-soluble chloride ion content in this paper.In addition,the microstructure of Friedel's salt were characterized by X-ray diffraction (XRD),scanning electron microscopy(SEM),and thermal analysis method(TG/DTA). The results show that water soluble chloride ion concentration in the sea sand mortar is closely related to the extraction temperature.The higher the extraction temperature, the higher the water-soluble chloride concentration is.When extraction temperature is 65 V,the water soluble chloride ion concentration is about twice as mortars at 15 V. Physically bound chloride ion in fly ash mortar shows low dissolution in lower temperatures.The endothermic peak of the Friedel 's salt in the sea sand mortar does not appear on the TG/DTA curve,while the existence of Friedel's salt was indicated by XRD and SEM picture.This is probably due to the small amount of instable Friedel's salt content in the sea sand mortar.

【Keywords】

sea sand mortar;;water soluble chloride ions;;micro structures;;Friedel's salt

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