共查询到20条相似文献，搜索用时 62 毫秒
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在房屋建筑工程中，地下室、屋面、外墙是容易出现渗水的重点区域，但是一些工程因为防水材料和施工工艺落后影响防水效果。结合房建项目案例，对GH933高压无气防水涂料喷涂机、Z45电动防水涂料喷涂机喷涂的施工工艺和流程进行阐述，并重点介绍了细部节点的处理工艺，实践证明机械化喷涂施工与传统人工喷涂相比，可以实现标准化、绿色化、机械化作业，达到降本增效目的。 相似文献
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《中国科教创新导刊》1995,(5)
防水涂料日本科学家寻找让抛物面天线不沾零花的途径，他们研制出防水涂料，可最终用于从草坪家具（如躺椅等）到船毂在内的所有物品。日本电报电话公司开发的这种新涂料的工作原理同车蜡新涂层相似，它使雨水形成水珠并滚下。这种物质相对其他防水涂层而言产生更园的水滴... 相似文献
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榕叶 《中国科教创新导刊》1995,(8)
防水涂料日本科学家寻找让抛物面天线不沾雪花的途径，他们研制出防水涂料，可最终用于从草坪家具（如躺椅等）到船壳在内的所有物品。日本电报电话公司开发的这种新涂料的工作原理同车蜡新涂层相似，它使雨水形成水珠并滚下。这种物质相对其他防水涂层而言产生更园的水滴... 相似文献
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付达新 《湖南科技学院学报》2007,28(9):71-73
聚合物防水涂料具有广泛的适用性、安全性、耐久性以及防水效果显著、性能稳定可靠、施工维修方便等优点,在建筑行业有着广阔的应用前詈。本文对永大哈弗聚氨酯彩弹防水涂料的性能进行了简要的介绍,并针对该种涂料应用中的施工方案和施工效果进行了细致的描述和分析。 相似文献
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徐立强 《连云港职业技术学院学报》1995,(2)
“851”防水涂料是一种中高档双组份反应性厚质涂膜,使用时将主剂与固化剂按一定比例混合搅拌均匀,涂刷于平整,洁净的基层上,经过常温交联固化形成一种橡胶状的整体弹性涂膜,阻挡水对基层的渗透而能起到防水作用.“851”防水涂料具有弹性高,延伸能力强,对基层的伸缩或开裂适应性强,温度适应性好,耐油,耐化学药品性能优异,涂膜无接缝,能适应任何形状复杂部住的施工.采用冷作业施工,防火防污染且施工劳动强度低,对地下室施工尤为适宜. 相似文献
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以废聚苯乙烯泡沫塑料为主要原料,用合适溶剂和改性剂处理可制得防水涂料,通过试验进行了溶剂和改性剂的选择和配制,并通过正交试验得出涂料的最佳配方,同时对防水涂料进行了性能测试．该涂料的研制是废旧泡沫塑料回收利用的有效途径,具有材料易得,生产成本低廉,制备工艺简单,变废为宝的优点． 相似文献
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聚合物水泥防水涂料是一种水性双组分建筑防水涂料,在建筑领域有着广阔的应用前景。本文研究了浸水处理、碱处理、热老化处理、紫外老化处理对四种配方涂层的表观情况、拉伸性能、吸水率的影响,实验结果表明:经过浸水处理、碱处理后,各配方涂层的抗拉强度和断裂伸长率均呈现下降趋势,经过热老化处理、紫外老化处理后,各配方涂层的抗拉强度均增大,且添加外加剂的涂层7天吸水率均小于无外加剂涂层;当制备涂料聚灰比为0.6,氯丁胶乳/丙烯酸酯乳液为90/10,偶联剂掺量1.5%,消泡剂掺量0.3%时,涂层经处理后,涂层的拉伸性能符合GB/T 23445-2009《聚合物水泥防水涂料》规范中Ⅱ涂料拉伸性能要求,涂层的耐久性优异。 相似文献
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高强度聚氨酯防水涂料的研制 总被引：3，自引：0，他引：3
以多元醇和过量多异氰酸酯制备的含-NCO预聚体为A组分，以芳香胺和聚醚多元醇为B组分，制得的双组分高强度聚氨酯防水涂料，抗拉强度3．0－10MPa，伸长率200％－400％，粘接强度≥2．0MPa，适合水剂工程要求。 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
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唐芳 《读与写:教育教学刊》2008,5(6)
During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context. 相似文献