發(fā)布時(shí)間：2018-04-13 05:11

  本文選題：環(huán)氧樹脂 + 砂漿��； 參考：《長(zhǎng)安大學(xué)》2014年碩士論文

【摘要】：水泥混凝土路面因其具有強(qiáng)度高，壽命長(zhǎng)，維護(hù)費(fèi)用少等優(yōu)點(diǎn)，得到了廣泛的應(yīng)用。水泥混凝土路面局部破損是一種常見的病害，如坑槽、孔洞、裂縫等。局部破損如果修復(fù)不及時(shí)，不僅降低道路使用壽命，還增加了維修成本�；炷�土板塊修復(fù)技術(shù)存在成本高、開放交通時(shí)間長(zhǎng)等缺點(diǎn)，且環(huán)境差異又會(huì)造成修復(fù)技術(shù)的難度，因此，為了提高修補(bǔ)效率及縮短交通開放時(shí)間，需開發(fā)適于干燥及潮濕環(huán)境的水泥路面局部破損快速修補(bǔ)材料。 本文結(jié)合水泥混凝土路面局部破損的特點(diǎn)，并參照相關(guān)文獻(xiàn)，提出了修復(fù)材料技術(shù)性能要求，研究了干燥環(huán)境及潮濕環(huán)境下使用的環(huán)氧樹脂修補(bǔ)材料，通過對(duì)環(huán)氧砂漿中骨料級(jí)配類型與用量、固化劑的種類等因素對(duì)其工作性能的影響，對(duì)修補(bǔ)材料的組分進(jìn)行了優(yōu)化，得到適用于水泥混凝土路面干燥環(huán)境和潮濕環(huán)境局部破損修補(bǔ)材料的初步配方。再對(duì)砂漿的強(qiáng)度發(fā)展規(guī)律、與舊混凝土間的粘結(jié)強(qiáng)度、耐腐蝕性能等進(jìn)行了試驗(yàn)，得到優(yōu)化配合比。研究結(jié)果表明： （1）不管在干燥環(huán)境還是潮濕環(huán)境下，環(huán)氧膠結(jié)料中應(yīng)添加適量的活性稀釋劑XY207，以降低漿液粘度，提高砂漿的工作性能及機(jī)械性能。 （2）環(huán)氧砂漿強(qiáng)度受集料級(jí)配和砂膠比影響，使用時(shí)要綜合強(qiáng)度、工作性和經(jīng)濟(jì)性再進(jìn)行選擇。 （3）填料可以改善砂漿力學(xué)性能，對(duì)砂漿內(nèi)部空隙進(jìn)行填補(bǔ)，，提高砂漿結(jié)構(gòu)致密性，還可以降低材料成本。 （4）不同類型的固化劑能使環(huán)氧砂漿具有不同的強(qiáng)度和凝膠時(shí)間，固化劑摻入量越大，砂漿的凝膠時(shí)間越快，可操作時(shí)間越短；本文在潮濕和干燥兩種環(huán)境下，采用了四種不同的固化劑和兩種不同的活性稀釋劑，在干燥環(huán)境下，綜合考慮了砂漿的可操作時(shí)間、強(qiáng)度、粘結(jié)強(qiáng)度等因素，選用TF-30固化劑比較適宜，其早期強(qiáng)度大、漿體滲透性高、可操作時(shí)間適中；在潮濕環(huán)境下，以T-4為固化劑的砂漿強(qiáng)度發(fā)展快、早強(qiáng)高、粘結(jié)強(qiáng)度到達(dá)4.5MPa以上，因此采用固化劑T-4是最佳的選擇。 （5）本文所研究的兩種修補(bǔ)材料的強(qiáng)度、耐腐蝕性、粘結(jié)性等方面都滿足使用要求。而所提出的施工工藝簡(jiǎn)單，但實(shí)際效果仍需工程檢驗(yàn)。
[Abstract]:Cement concrete pavement has been widely used because of its high strength, long life, low maintenance cost and so on.Local damage of cement concrete pavement is a common disease, such as potholes, holes, cracks and so on.If partial damage is not repaired in time, it not only reduces the service life of the road, but also increases the maintenance cost.In order to improve the repair efficiency and shorten the traffic opening time, the repair technology of concrete slab has the disadvantages of high cost, long open traffic time and so on, and the environmental difference will cause the difficulty of the repair technology, therefore, in order to improve the repair efficiency and shorten the traffic opening time,Rapid repair materials for local damage of cement pavement suitable for dry and wet environment need to be developed.According to the characteristics of local damage of cement concrete pavement and referring to relevant literature, the technical performance requirements of repairing materials are put forward in this paper. The epoxy resin repair materials used in dry and humid environments are studied.The composition of the repair material was optimized by the influence of the gradation type and amount of aggregate in epoxy mortar and the type of curing agent on its working performance.A preliminary formula for repairing local damage of cement concrete pavement in dry and humid conditions was obtained.The strength development law of mortar, bond strength and corrosion resistance between mortar and old concrete were tested, and the optimum mix ratio was obtained.The results show that:1) the proper amount of active diluent XY207 should be added to the epoxy binder in order to reduce the viscosity of slurry and improve the working and mechanical properties of mortar.(2) the strength of epoxy mortar is affected by aggregate gradation and sand / binder ratio.3) the filler can improve the mechanical properties of mortar, fill the inner voids of mortar, improve the compactness of mortar structure, and reduce the material cost.4) different kinds of curing agents can make epoxy mortar have different strength and gel time. The greater the amount of curing agent, the faster the gelation time and the shorter the operating time.Four different curing agents and two different active diluents were used. In dry environment, the operating time, strength and bond strength of mortar were considered synthetically. The TF-30 curing agent was suitable and its early strength was high.The mortar has high permeability and moderate operating time. In humid environment, the strength of mortar with T-4 as curing agent develops rapidly, the early strength is high, the bond strength is above 4.5MPa, so it is the best choice to use T-4 as curing agent.5) the strength, corrosion resistance and adhesion of the two kinds of repair materials studied in this paper meet the requirements of application.The proposed construction technology is simple, but the actual effect still needs engineering inspection.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U416.216;U418.6;U414

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 萬正安,戴煒;GS型道路混凝土快速修補(bǔ)劑的研究與應(yīng)用[J];湖南交通科技;2002年03期

2 代新祥,文梓蕓;水泥混凝土路面損壞原因分析及修補(bǔ)材料的選擇[J];公路;2000年11期

3 孫兆輝;許志鴻;王鐵斌;鄧云綱;;集料級(jí)配對(duì)水泥穩(wěn)定碎石抗裂性能影響分析[J];公路;2009年02期

4 張重祿,肖秋明;水泥混凝土路面快速修復(fù)技術(shù)展望[J];國(guó)外公路;2000年01期

5 彭春元;新型水泥混凝土路面修補(bǔ)材料的研究現(xiàn)狀與展望[J];廣州大學(xué)學(xué)報(bào)(綜合版);2001年08期

6 李玉蘭;用環(huán)氧樹脂混凝土對(duì)汽輪機(jī)基礎(chǔ)進(jìn)行局部處理[J];河北煤炭;2000年S1期

7 于學(xué)文,孫全勝,丁洪義;水泥混凝土路面板裂縫產(chǎn)生的原因與修補(bǔ)技術(shù)[J];黑龍江交通科技;2001年04期

8 王忠祥;水泥混凝土路面斷板和裂縫分析[J];黑龍江交通科技;2002年01期

9 汪多仁;環(huán)氧樹脂的合成與應(yīng)用[J];合成材料老化與應(yīng)用;1997年01期

10 孔令高,亓桂平,王本義;混凝土路面裂縫控制[J];建筑技術(shù)開發(fā);2002年04期

本文編號(hào)：1743057