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For pore solution extrusion tests, deionized water was used for the preparationof cement paste specimens. Sodium chloride equivalent to 1% and2% by weight of cement was predissolved in the mix water; this correspondsto original chloride ion concentrations of 0.6% and 1.2% by weight ofcement, respectively. Cemen~t paste specimens were prepared at a constantwater/cement ratio of 0.6, using a standard ASTM Hobart mixer and amixing procedure in accordance with ASTM C305. After mixing, the specimenswere cast in 49 mm x 75 mm cylindrical impermeable plastic molds,sealed, and stored at 20 -+ 2℃
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1.那时候刚刚开始下雨,我们没有出发2.Tony的兄弟姐妹都是来自美国3。可能东京比世界上的任何城市都大4。我习惯了每个早上喝牛奶和吃面包当早餐5。我没有时间去浪费。我真的要着手工作了6。Mrs.Green上个月退休之前已经在大学教了多余二十年时间7。他证明了他说的东西。8。我爸妈都不会读和写(文盲)9。那个跟我一起去西部的人来自欧洲的南部10。(很模糊) 他知道很多因为它很幼稚11。你最好不要用字典,只猜猜它的意思就好12。人们可以从网上得到所有必要的信息13。这些画面让我们联想起我们在美国一起度过的时光14。你的口语水平只能靠你的每天阅读来提高15。他很想帮助我们某些东西,但是它总是只考虑它的方式好累累
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