1) early strength under low temperature
低温早强
1.
According to the environment features in Qinghai-Tibet railway line,the technique requirements for erosion resistant enduring concrete of early strength under low temperature are analyzed,and the selection of raw materials of concrete and concrete mix proportion design through orthogonal test are emphatically introduced.
根据青藏铁路环境特点,分析了低温早强耐久防腐高性能混凝土的技术要求,重点对原材料选择和依据正交试验优化混凝土配合比等进行了介绍,依据本文方法设计的混凝土配合比完全满足施工及规范要求。
2) early strength concrete under low temperature
低温早强耐久混凝土
3) increase the early strength of concrete at minustemperature
负温早强
4) erosion resistant concrete of early strength under low temperature
低温早强耐久侵蚀混凝土
1.
This paper demonstrates and analyzes the main technical difficulties, precautions, proportion design and construction quality control for erosion resistant concrete of early strength under low temperature during construction.
通过对低温早强耐久混凝土和低温早强耐久侵蚀混凝土施工中要解决的主要技术难题、施工各个环节应注意的问题的研究 ,特别是配合比设计和施工质量控制等问题的论述和分析 ,经过试验研究 ,提出了配合比设计原则和施工质量控制方法及评定标
5) cryogenic strengthening
低温强化
6) low temperature strength
低温强度
1.
I value and improve the low temperature strength of the sinter ore and pellet without change of R.
I 值明显下降,提高其低温强度的新方法。
补充资料:低温
低温
hypothermia
低温状态下脑组织对缺氧的耐受性明显增加。体温低于37℃时,每减低1℃,脑组织代谢率减少6.7%,颅内压减低5.5%,在人工呼吸、心脏按压的同时或稍后应给予降温处理,可采用正规冬眠疗法使体温降至肛温35℃左右,目前尤为重视头部局部降温,戴冰帽,头温降至32℃左右,重症要降温3~5天。
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