drying shrinkage ratio 干燥收缩率
The influence of different superplasticizers on drying shrinkage of mortar with the same water cement ratio and same sand cement ratio was investigated in this article.
通过试验研究了几种类型的高效减水剂在同样水灰比和砂灰比的情况下对砂浆干燥收缩性能的影响。
Low pit aspiration ratio and cracks of some bordered pits are the main reasons for increasing liquid impregnation after radio-frequency vacuum drying treatment.
具缘纹孔的闭塞率较低以及部分具缘纹孔周缘破裂是高频真空干燥后木材浸注性提高的主要原因。
The optimum extracting and drying technology of the UHMWPE gel fiber including the optimum extracting time, extracting bath ratio, drying temperature and drying time were studied and determined.
探索并确定了冻胶纤维的最佳萃取和干燥工艺，包括最佳萃取时间、最佳萃取浴比、干燥温度和干燥时间等。
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