本文選題：乳化瀝青　切入點(diǎn)：浸出性能　出處：《長(zhǎng)安大學(xué)》2014年碩士論文

【摘要】：為研究乳化瀝青及混合料水中浸出性能，利用紅外光譜（IR）分析、比色分析、滴定分析、重量分析、交流阻抗技術(shù)等研究乳化瀝青浸出性能，同時(shí)分別以浸泡液水樣化學(xué)耗氧量（COD）值、固體懸浮物顆粒（SS）值、總硬度值、乳化劑含量值和交流阻抗(EIS)圖譜作為乳化瀝青水中浸出和抗?jié)B性能性能評(píng)價(jià)指標(biāo)，結(jié)合IR圖譜判定乳化瀝青浸出后材料構(gòu)成變化，以重量分析技術(shù)測(cè)定乳化瀝青浸出速率并建立乳化瀝青浸出動(dòng)力學(xué)方程。另外，進(jìn)行了陽(yáng)離子乳化瀝青、陰離子乳化瀝青和陽(yáng)離子乳化瀝青冷再生混合料在酸性水體和堿性水體中進(jìn)行浸泡實(shí)驗(yàn)，通過(guò)COD、SS、EIS、IR等測(cè)試手段對(duì)浸泡液和浸泡后乳化瀝青進(jìn)行分析研究，研究結(jié)果表明： 1）SS值可用于評(píng)價(jià)浸出懸浮瀝青組分量，濾前COD值可用于評(píng)價(jià)浸出有機(jī)組分總量，濾后COD值可用于評(píng)價(jià)浸出可溶性有機(jī)組分量，而乳化劑含量試驗(yàn)可用于評(píng)價(jià)浸出乳化劑量；酸性水環(huán)境會(huì)加劇陽(yáng)離子乳化瀝青的組分浸出特性，，堿性環(huán)境會(huì)加劇陰離子乳化瀝青的組分浸出特性，陰離子乳化瀝青耐水侵蝕性較差，陽(yáng)離子乳化瀝青耐水侵蝕性能相對(duì)較好； 2）通過(guò)EIS測(cè)試結(jié)果可將乳化瀝青試件在酸性水體的浸泡過(guò)程分為三個(gè)階段，第一階段為浸泡初期，浸泡時(shí)間為0h-36h；第二階段為浸泡中期，浸泡時(shí)間為39h-78h；第三階段為浸泡后期，浸泡時(shí)間為78h后；浸泡初期時(shí)水溶液通過(guò)瀝青膜中微通道向?yàn)r青膜內(nèi)部擴(kuò)散，浸出中期時(shí)水溶已擴(kuò)散至界面處，當(dāng)浸泡進(jìn)入浸泡后期后，瀝青膜開始大面積起泡、腫脹，并剝離金屬電極表面，已基本失去粘附性； 3）結(jié)合浸出動(dòng)力學(xué)分析將乳化瀝青試件浸出過(guò)程分為三階段，通過(guò)動(dòng)力學(xué)分析第一階段浸出速率函數(shù)可用線性函數(shù)模擬，其方程為vI16.980.33t；第二階段浸出速率函數(shù)同樣可用線性函數(shù)模擬為vII8.950.11t；第三階段浸出速率函數(shù)用二次多項(xiàng)式函數(shù)模擬較為準(zhǔn)確，其方程為vIII209.345.94t0.04t2； 4）通過(guò)IR分析表明，陽(yáng)離子乳化瀝青浸出前后組分組成并未變化，但組分比例卻有一定改變；陽(yáng)離子乳化瀝青三大指標(biāo)試驗(yàn)結(jié)果表明陽(yáng)離子乳化瀝青浸出前后針入度、延度和軟化點(diǎn)都有所變化，其中針入度和延度隨浸泡時(shí)間的延長(zhǎng)而呈減小變化，軟化點(diǎn)則隨浸泡時(shí)間的延長(zhǎng)而呈增加變化趨勢(shì)；乳化瀝青冷再生混合料劈裂強(qiáng)度、低溫彎曲及高溫車轍試驗(yàn)結(jié)果表明浸泡對(duì)乳化瀝青冷再生試件有一定影響，隨浸泡時(shí)間的延長(zhǎng)混合料的劈裂強(qiáng)度、低溫性能和高溫性能都會(huì)有所降低。
[Abstract]:In order to study the leaching performance of emulsified asphalt and its mixture in water, the leaching performance of emulsified asphalt was studied by IR, colorimetry, titration, gravimetric analysis and AC impedance technique. At the same time, the chemical oxygen consumption (COD), solid suspended particle (SS), total hardness, emulsifier content and AC impedance EISs were used as indicators to evaluate the leaching and impermeability of emulsified asphalt. The composition of emulsified asphalt was determined by IR spectra, the leaching rate of emulsified asphalt was determined by gravimetric analysis and the kinetic equation of emulsified asphalt leaching was established. In addition, cationic emulsified asphalt was carried out. The cold recycled mixture of anionic emulsified asphalt and cationic emulsified asphalt was immersed in acidic water and alkaline water. The soaking solution and emulsified asphalt after soaking were analyzed by means of CODX SSEIS-IR. The results showed that:. The 1)SS value can be used to evaluate the components of suspended asphalt, the COD value before filtration can be used to evaluate the total amount of leaching organic components, the COD value after filtration can be used to evaluate the soluble unit components of leaching, and the emulsifier content test can be used to evaluate the amount of emulsifier. The acidic water environment will aggravate the component leaching characteristics of cationic emulsified asphalt, the alkaline environment will aggravate the component leaching characteristics of anionic emulsified asphalt, and the water erosion resistance of anionic emulsified asphalt will be poor. The water erosion resistance of cationic emulsified asphalt is relatively good. 2) the soaking process of emulsified asphalt in acidic water can be divided into three stages by EIS test, the first stage is the initial stage of soaking, the time of soaking is 0h-36h, the second stage is the middle period of soaking, the soaking time is 39h-78h, the third stage is the later stage of soaking. After the immersion time was 78 h, the aqueous solution diffused through the microchannel in the asphalt film at the beginning of immersion, and the water solution had diffused to the interface in the middle stage of leaching. When the soaking was in the late stage of immersion, the asphalt membrane began to bubble in a large area and became swollen. The surface of the metal electrode has lost its adhesion. 3) the leaching process of emulsified asphalt samples is divided into three stages, and the leaching rate function of the first stage can be simulated by linear function. The equation is vI16.980.33t, the second stage leaching rate function can also be simulated as vII8.950.11t, the third stage leaching rate function is simulated by quadratic polynomial function, its equation is vIII209.345.94t0.04t2. 4) IR analysis shows that the composition of cationic emulsified asphalt has not changed before and after leaching, but the proportion of component has changed to a certain extent, and the results of three indexes of cationic emulsified asphalt show that the penetration of cationic emulsified asphalt before and after leaching, The ductility and softening point have some changes, in which the penetration and ductility decrease with the prolongation of soaking time, and the softening point increases with the prolongation of soaking time. The results of low temperature bending and high temperature rutting test show that soaking has a certain influence on the cold regenerated samples of emulsified asphalt. With the prolonging of immersion time, the splitting strength of the mixture will be decreased, and the low temperature and high temperature properties will be decreased.
【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)】：U414

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