發(fā)布時(shí)間：2018-03-31 01:26

  本文選題：混凝土　切入點(diǎn)：混合砂漿　出處：《湖南大學(xué)》2015年碩士論文

【摘要】：近年來(lái),隨著建筑工程材料技術(shù)的不斷發(fā)展,建筑物的外墻材料經(jīng)歷了水泥抹灰、陶瓷馬賽克等階段,現(xiàn)在已經(jīng)發(fā)展到玻璃幕墻、外墻涂料、立體綠化等多種建筑材料多重變化的趨勢(shì)。但是,隨之而來(lái)的建筑外墻滲漏的情況也越來(lái)越嚴(yán)重。建筑物外墻抗?jié)B質(zhì)量的好壞,不僅直接影響到建筑物的外部美觀,更能影響到內(nèi)部使用者的使用效果。尤其是在南方降雨量較大的地區(qū),由于暴雨所帶來(lái)的外墻滲漏,不僅僅造成了室內(nèi)積水,也會(huì)破壞建筑物的外墻結(jié)構(gòu),從而造成建筑物的質(zhì)量隱患。本文結(jié)合建筑工程中的實(shí)際情況,主要從微觀和宏觀兩個(gè)方面分析了建筑物外墻常見(jiàn)的滲漏問(wèn)題產(chǎn)生的原因,并提出了一系列防治措施,以希從材料設(shè)計(jì)的角度從根本上解決外墻滲漏的問(wèn)題以滲水法為基礎(chǔ)研究混凝土的抗?jié)B性能,混凝土試件的密封是試驗(yàn)?zāi)芊癯晒Φ年P(guān)鍵。針對(duì)混凝土的滲透試驗(yàn)中密封效果差的問(wèn)題,對(duì)滲透試驗(yàn)中密封材料的封模方法進(jìn)行了探究。本文以傳統(tǒng)的密封材料石蠟和黃油作為試驗(yàn)對(duì)比,常溫下對(duì)不同比例固化劑的環(huán)氧樹(shù)脂膠泥的脫模及密封效果進(jìn)行試驗(yàn)分析,發(fā)現(xiàn)采用環(huán)氧樹(shù)脂作密封材料的試驗(yàn)方法方便可行、試驗(yàn)結(jié)果穩(wěn)定,有效保證了試驗(yàn)結(jié)果不因密封材料原因?qū)е逻吘壨杆?影響判斷混凝土的抗?jié)B性能,大大提高了試驗(yàn)的成功率。采用抗?jié)B標(biāo)號(hào)法和滲水高度法兩種試驗(yàn)方法研究了若干條件下如不同混凝土強(qiáng)度等級(jí)、改變添加劑的量、外抹混合砂漿、混合砂漿中摻不同量的添加劑的混凝土的抗?jié)B性能,分析了混凝土及混合砂漿微觀結(jié)構(gòu)的變化。試驗(yàn)結(jié)果表明,在混凝土中直接摻加添加劑對(duì)混凝土的抗?jié)B性能提高較小,混凝土的強(qiáng)度等級(jí)也會(huì)直接影響添加劑對(duì)混凝土抗?jié)B性能的改善;而在此基礎(chǔ)上摻有添加劑的復(fù)合砂漿薄層則對(duì)混凝土的抗?jié)B能力提高較明顯。一定條件下,混合砂漿中添加劑含量越多,砂漿層越厚,混凝土的抗?jié)B能力越好。利用摻入添加劑的抹灰砂漿進(jìn)行建筑外墻抗?jié)B,對(duì)于工程實(shí)際應(yīng)用具有非常重要的意義。
[Abstract]:In recent years, with the continuous development of building engineering materials technology, the exterior wall materials of buildings have gone through the stages of cement plastering, ceramic mosaic and so on. Now they have developed into glass curtain walls, exterior wall coatings, etc. The trend of many kinds of building materials, such as stereoscopic greening, is changing. However, the leakage of exterior wall is becoming more and more serious. The quality of anti-seepage of exterior wall of building not only directly affects the exterior beauty of building, Especially in the south, where there is a lot of rainfall, the leakage of the exterior wall caused by the rainstorm will not only cause water in the room, but also destroy the structure of the exterior wall of the building. In this paper, combining with the actual situation in the building engineering, the causes of the common leakage problem of the exterior wall of the building are analyzed from the micro and macro aspects, and a series of prevention measures are put forward. In order to solve the problem of external wall leakage fundamentally from the angle of material design, the impermeability of concrete is studied on the basis of seepage method. The sealing of concrete specimen is the key to the success of the test. The sealing method of sealing material in permeation test was studied. The paper compared the traditional sealing material paraffin and butter, and analyzed the demoulding and sealing effect of epoxy resin cement with different proportion of curing agent at room temperature. It is found that the test method of using epoxy resin as sealing material is convenient and feasible, and the test results are stable, which can effectively ensure that the test results do not cause the edge permeability due to the sealing material, which affects the judgment of the impermeability of concrete. The success rate of the test is greatly improved. Two test methods, the impermeable marking method and the percolation height method, are used to study some conditions, such as different strength grades of concrete, changing the amount of additives, and applying mixed mortar externally. The impermeability of concrete with different additives in mixed mortar is analyzed, and the change of microstructure of concrete and mixed mortar is analyzed. The experimental results show that the anti-seepage performance of concrete is improved little by adding additives directly into concrete. The strength grade of concrete will also directly affect the improvement of the impermeability of concrete with additives, while the composite mortar thin layer with additive on this basis will improve the impermeability of concrete obviously. The more additives in the mixed mortar, the thicker the mortar layer, the better the impermeability of concrete.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU528

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 梁瑋;張林;;反應(yīng)型環(huán)氧樹(shù)脂固化劑的研究現(xiàn)狀與發(fā)展趨勢(shì)[J];化學(xué)與黏合;2013年01期

2 譚家頂;程玨;郭晶;張軍營(yíng);;幾種胺類固化劑對(duì)環(huán)氧樹(shù)脂固化行為及固化物性能的影響[J];化工學(xué)報(bào);2011年06期

3 張寶華;葉俊丹;陳斌;翁燕青;張玲;王夏琴;;固化溫度對(duì)環(huán)氧樹(shù)脂固化物性能的影響[J];塑料工業(yè);2009年09期

4 張李黎;柳炳康;胡波;;再生混凝土抗?jié)B性試驗(yàn)研究[J];合肥工業(yè)大學(xué)學(xué)報(bào)(自然科學(xué)版);2009年04期

5 趙帥;李國(guó)忠;曹楊;田穎;;聚丙烯纖維和聚合物乳液對(duì)水泥砂漿性能的影響[J];建筑材料學(xué)報(bào);2007年06期

6 趙軼;王偉;;框剪結(jié)構(gòu)填充墻滲漏通病分析及防治措施[J];黑龍江科技信息;2007年03期

7 陳立軍,王永平,尹新生,張丹;混凝土孔徑尺寸對(duì)其抗?jié)B性的影響[J];硅酸鹽學(xué)報(bào);2005年04期

8 楊錢榮;摻粉煤灰和引氣劑混凝土滲透性與強(qiáng)度的關(guān)系[J];建筑材料學(xué)報(bào);2004年04期

9 王偉;環(huán)氧樹(shù)脂固化技術(shù)及其固化劑研究進(jìn)展[J];熱固性樹(shù)脂;2001年03期

10 胡高平,李明軒,楊映霞,肖衛(wèi)東;650~#聚酰胺的差異對(duì)環(huán)氧樹(shù)脂固化物性能的影響[J];湖北大學(xué)學(xué)報(bào)(自然科學(xué)版);1999年03期

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