砖砌体工程冬季期施工措施.docVIP

砖砌体工程冬季期施工措施 砖砌体工程冬季期施工措施作者：房地产 时间：2017-4-18 浏览量： 一、砖砌体工程冬期采用掺无氯盐防冻剂砂浆法。 二、对材料的要求: 砖在砌筑前应将表面积灰、积雪清扫干净; 水泥采用普通硅酸盐水泥,使用时不能冻结; 石灰膏应经融化并重新拌合后方可使用;受冻而脱水风化的石灰膏不可使用。 三、冬期砌筑砂浆的稠度,宜比常温施工适当增加,可通过加石灰膏的办法来解决。稠度控制在8~13cm。 四、砂浆在使用时的温度不低于5℃。 五、为了拌和热砂浆,配备专用加热水箱,水的温度控制在90℃左右,先将水、砂先行搅拌,再加水泥。 六、水的温度应经常检查,每小时不少于1次,温度计停留在水内时间不少于1分钟。 七、冬期搅拌砂浆的时间应适当延长,一般要比常温期增加2分钟。 八、减少砂浆在搅拌、运输、储存过程中的温度损失采用措施: 砂浆的搅拌应在保温棚内进行,环境温度不低于+5℃;冬期施工砂浆要随拌随运,不可储存和二次倒运。 把缩短砂浆运输距离作为设置搅拌站主要依据,当用手推车输送砂浆时,车体应采取保温措施。车体采用双层钢板,中间采用木锯沫填实。 砂浆必须随拌随用,砂浆的储存时间不宜超过15分钟。 运输车应及时清理,每日下班后用热水清理,以免冻结。 九、严格使用已遭冻结的砂浆。 十、砌砖采用’三一砌砖法’,即一铲灰、一块砖、一挤揉。 十一、砌砖前必须立匹数杆水平和垂直灰缝的平均厚度不可大于10mm,施工时要经常检查灰缝的厚度和均匀性。 十二、每天收工前,砌体表面不铺砂浆,用草帘将砌体表面加以覆盖。第二天上班时,应先将砖表面的霜雪扫净,然后再继续砌筑。 十三、砂浆中的防冻剂掺量参照实验报告及厂家材料说明。 十四、防冻剂的掺法:防冻剂应先溶解于水,然后投入搅拌。 十五、当日最低气温≤-15℃时,砂浆强度应按常温施工时提高一级。 十六、普通砖在正温度条件下砌筑时,砖应适当浇水湿润,可用喷壶随浇随砌。在负温度下砌筑时砖不浇水,但砖表面的灰砂、冰雪必须清除。 Measures for the routine management of moral education in Middle SchoolsMethod of conventional management of moral education in middle schoolFirst, the guiding ideology:School moral education is an organic whole of the whole education work, always adhere to the school adhere to the moral education, education for this product, and actively promote the quality education, the school building efficient curriculum system of moral education, moral education, improve the sense of attraction and appeal, enhance the moral education work for through and timeliness. Teach everyone, service education and management education, and school moral education work must be with family education and community education closely together, to form a concerted pattern, and strive to create a good atmosphere for education, and to promote the all-round development of students, to establish a scientific moral education full of vigor the For long-term mechanism.Two, the goal of moral education:To guide the students to form the correct world outlook, outlook on life, values, to cultivate students unity and mutual assistance, honest and trustworthy, law