CAJ | 학술논문

采用盐湖卤水浸泡试验，定期检测了混凝土不同深度的自由氯离子含量，并对数据进行了拟合分析，研究了混凝土表面氯离子浓度随时间的变化规律，分析了水灰比和粉煤灰掺量对表面氯离子浓度大小影响。结果表明，表面氯离子浓度随时间的增加逐渐增长并最终达到稳定状态。随着水灰比的增大而增大；随着粉煤灰掺量的增大先降低后增加。通过对现有模型的比较，提出了更适合是盐湖环境的表面氯离子浓度的模型。
채용염호서수침포시험，정기검측료혼응토불동심도적자유록리자함량，병대수거진행료의합분석，연구료혼응토표면록리자농도수시간적변화규률，분석료수회비화분매회참량대표면록리자농도대소영향。결과표명，표면록리자농도수시간적증가축점증장병최종체도은정상태。수착수회비적증대이증대；수착분매회참량적증대선강저후증가。통과대현유모형적비교，제출료경괄합시염호배경적표면록리자농도적모형。
Immersion in salt lake brine was adopted to periodically test chloride ion concent at different depths of concrete and regres-sion analysis was completed.Variation law of surface chloride ion concrete with time was investigated.Effect of water to cement ratio and fly ash content on size of surface chlorideion concent ration were also analyzed.Test result showed that surface chloride ion concentration gradually grew with the increase of time and reaches a steady state lastly.With the increase of water to cement ratio meant greater surface chloride ion concentration.Surface chloride ion concentration first increased and then decreased with the increase of fly ash content.An adapted model was proposed by comparison and correction of current models.