Now, i'm going to show you something about bricklaying . 我现在要告诉你一些有关砌砖的事。
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Construction operation specification for bricklaying engineering 砌筑工程施工操作规程
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Brickwork _ structures _ desc ; vaults and cylindrical structures used in medieval churches needed this technique of bricklaying to form its structures without angularity 中世纪不带棱角的拱顶和圆柱建筑需要这种砌砖技术
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Back covered porous brick has been developed in the late period of 1990 ' s , and is produced by semi - dry - pressing method . it has such many advantages as high production efficiency , energy saving , high density , beautiful appearance , high strength , easy bricklaying , and can save 1 / 3 masonry mortar compared with solid brick 盲孔多孔砖是20世纪90年代后期研制成功的、用半干压法压制成型的封底多孔砖，它生产效率高，节约能耗，产品致密，外形好，强度高，易砌筑，用于砌体工程时，可节约1 3砂浆。
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The method of close water test has been used for a long time , so richer experience has been achieved . however , it not only takes pains and time , but also consumes raw materials during the close water test because of miscellaneous working procedures such as bricklaying in the two ends of pipe , water - repellent layer plastering , maintaining and water offletting , brick - block backouting after the test , especially in the region short of water and some drainage pipe with prop - pipe construction . in order to satisfy the fast development of municipal construction , new detection methods should be developed 闭水试验方法因其应用时间较长，目前已积累了较丰富的经验，但在闭水试验时，管道两端砌筑砖堵、抹防水层、养护、灌水浸泡，以及试验后的放水、砖堵拆除等繁杂工序，不仅费工、费时，而且消耗原材料，尤其是在缺水的地区以及顶管施工的无压管道，这些矛盾更加突出；因此，为满足迅速发展的市政建设需要，有必要探索新的检测方法，闭气试验就是其中一种，但是闭气试验目前还不完善，有待于进一步深入研究。
