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首页 » 试验检测论坛 » 水泥砂浆|混凝土试验 » 砂浆的种类及在砌体中的作用
07vip - 2008/10/29 15:04:00
砂浆根据不同用途分为普通砂浆和特种砂浆,或者分为砌筑砂浆和抹灰砂浆。砌筑砂浆属于普通砂浆,一般用强度代号M来表示;砌筑砂浆的强度等级有M20、M15、M10、M7.5、M5、M2.5、M1和M0.4八个待级,其中M0.4为黄泥砂浆同般用于临时围墙或临时材料库的砌筑;M1为黄泥白灰浆,用于临时建筑;M2.5M5M7.5为混合砂浆;M5 M7.5 M10M15M20为水泥砂浆。À°ÇÍf3/©bbs.3c3t.comñÊ"3+˜ç#ÇJ
抹灰砂浆一般用配合比的数字来表示,耐酸砂浆、防水矿浆等属于特种砂浆。砂浆按组成部分的材料不同分为水泥砂浆、石灰砂浆及混合砂浆等。混合砂浆又有水泥石灰砂浆、水泥粘土砂浆及石灰粘土砂浆等砂浆按容量可分为重质砂浆,其容量大于1.5t/m3;轻质砂浆,其容量小于1.5t/m3
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砂浆在砌体中的作用:À°ÇÍf3/©bbs.3c3t.comñÊ"3+˜ç#ÇJ
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将砖石按一定的砌筑方法粘结成整体。
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砂浆硬固后,各层砖可以通过砂浆均匀地传布压力,使砌体受力均匀。
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砌筑砂浆有两种À°ÇÍf3/©bbs.3c3t.comñÊ"3+˜ç#ÇJ
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二 ,混合砂浆 ;À°ÇÍf3/©bbs.3c3t.comñÊ"3+˜ç#ÇJ
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3;将砖按砌筑规范进行砌筑粘结成整体,待砂浆凝固后使墙体抗压或抗折。
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