论文部分内容阅读
测定了掺加不同外加剂并养护至一定龄期的镁水泥试件在浸水24 h后的氯离子溶出率,并在人工气候箱中观察了对应试件的吸潮返卤情况;研究表明,无机化学外加剂和矿物掺合料均在不同程度上抑制氯离子从试件溶出,而且掺量越大,抑制效果越明显,相应地,该试件的抗吸潮返卤性能有不同程度的改善;聚合物乳液的加入会加剧氯离子从试件溶出,同时试件吸潮返卤严重。
The dissolution rate of chloride ion of magnesium cement samples with different additives and curing to a certain age was measured and the moisture absorption and return halogen of corresponding samples were observed in the artificial climate chamber. Inorganic chemical admixtures and mineral admixtures all inhibit the dissolution of chloride ions from the test pieces to varying degrees, and the greater the dosage, the more obvious the inhibitory effect. Correspondingly, Improve; the addition of polymer emulsion will exacerbate the release of chloride ions from the specimen, while the sample moisture absorption back to severe halogen.