本文選題：瀝青路面　切入點(diǎn)：融冰劑　出處：《武漢理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：瀝青路面在冬季易積雪結(jié)冰,極易引發(fā)交通事故的發(fā)生。摻加氯鹽類融冰劑的蓄鹽瀝青混凝土作為一種主動(dòng)融雪化冰方法,得到了越來(lái)越多的關(guān)注。然而,氯鹽融冰劑的摻入會(huì)影響瀝青混凝土的路用性能,同時(shí)隨著氯鹽融冰劑的溶解析出也會(huì)降低瀝青路面的融雪化冰性能。如何降低氯鹽融冰劑對(duì)瀝青混凝土性能的影響,并延長(zhǎng)其融雪除冰效果,對(duì)于蓄鹽瀝青混凝土的發(fā)展與應(yīng)用具有重要意義。本文采用有機(jī)包覆的方法制備了包覆氯鹽融冰劑,對(duì)包覆氯鹽融冰劑的結(jié)構(gòu)進(jìn)行了表征,研究了不同類型有機(jī)物包覆氯鹽融冰劑對(duì)瀝青混凝土的路用性能、融冰性能及其長(zhǎng)效性。主要結(jié)論如下:(1)將不同類型包覆劑對(duì)氯化鈉或氯化鈣進(jìn)行包覆處理,制備出了包覆氯鹽融冰劑。掃描電鏡測(cè)試表明,包覆劑可以較好地包覆在氯鹽顆粒的表面,包覆劑用量越多,包覆程度越好。包覆劑C1、C2制備的融冰劑包覆層較厚,而包覆劑C3則在氯化鈉顆粒表面呈現(xiàn)較薄的包覆層;溶液冰點(diǎn)測(cè)試表明,采用氯化鈉作為融冰鹽制備的融冰劑氯離子釋放更為緩慢,包覆劑C1制備的融冰劑溶液冰點(diǎn)較高,緩釋性能更好,而隨著包覆劑摻量的增大,溶液冰點(diǎn)逐漸升高,緩釋性能也逐漸增強(qiáng)。(2)包覆氯鹽融冰劑對(duì)蓄鹽瀝青混凝土的高溫、低溫性能影響不大,而摻加純氯鹽的瀝青混凝土高溫性能和低溫性能則明顯降低,表明氯鹽對(duì)瀝青混凝土高溫、低溫性能的影響可以通過(guò)包覆來(lái)改善。有機(jī)物的包覆作用可以極大地降低氯鹽對(duì)瀝青混凝土水穩(wěn)定性能的負(fù)面影響,其中采用有機(jī)物C1氯鹽制備的蓄鹽瀝青混凝土的水穩(wěn)定性能最優(yōu)。(3)與純氯鹽相比,包覆氯鹽融冰劑降低了蓄鹽瀝青混凝土的短期融冰性能。采用低熔點(diǎn)的C3作為包覆劑,蓄鹽瀝青混凝土的短期融冰性能較好,且隨著包覆劑摻量的增大,短期融冰性能逐漸降低。融冰劑摻量的增大會(huì)提升蓄鹽瀝青混凝土的短期融冰能力,選用鈣作為融冰鹽短期融冰能力更強(qiáng)。(4)包覆氯鹽融冰劑的組成與結(jié)構(gòu)對(duì)蓄鹽瀝青混凝土的長(zhǎng)期融冰性能影響較大。采用包覆劑C1制備的蓄鹽瀝青混凝土浸泡12h后鹽析出速率大,冰點(diǎn)粘附力低,長(zhǎng)效性較好;隨著包覆劑摻量的增大,蓄鹽瀝青混凝土的長(zhǎng)期融冰性能逐漸增強(qiáng),但包覆劑摻量增大至A3后,繼續(xù)增大包覆劑用量對(duì)長(zhǎng)期融冰性能影響不大;采用氯化鈉作為融冰鹽,融冰劑摻量為5%時(shí),長(zhǎng)期融冰性能最佳。(5)室外融雪實(shí)驗(yàn)表明,包覆氯鹽融冰劑制備的蓄鹽瀝青混凝土,在浸泡12h后仍具有一定程度的融雪能力,而摻加純氯鹽的瀝青混凝土在浸泡12h后則幾乎不具備融雪效果,這表明對(duì)氯鹽進(jìn)行包覆提高了蓄鹽瀝青混凝土的長(zhǎng)效性。
[Abstract]:Bituminous pavement is prone to snow and ice in winter, which can easily lead to traffic accidents. As a method of active snow melting and ice melting, bituminous concrete with chlorine salt and ice melting agent has been paid more and more attention. The mixing of chlorine salt ice melting agent will affect the pavement performance of asphalt concrete, and with the dissolution and precipitation of chlorine salt melting ice agent, it will also reduce the snowmelt ice performance of asphalt pavement. How to reduce the influence of chlorine salt melting ice agent on asphalt concrete performance, It is of great significance for the development and application of salt storage asphalt concrete to prolong the effect of snow melting and deicing. In this paper, the coating chlorine salt melting agent is prepared by organic coating method, and the structure of the coating chlorine salt melting agent is characterized. The road performance, ice melting performance and long-term effect of different organic compounds coated with chlorine salt ice melting agent on asphalt concrete were studied. The main conclusions are as follows: 1) the different types of coating agents are coated with sodium chloride or calcium chloride. The results of SEM show that the coating agent can be coated on the surface of chloride particles, and the more the amount of coating agent is, the better the coating degree is, and the thicker the coating layer is, the thicker the coating layer is. On the other hand, the coating agent C3 showed a thin coating layer on the surface of sodium chloride particles, and the solution freezing point test showed that the release of chlorine ion from the ice-melting agent prepared with sodium chloride as the melting salt was slower, and the freezing point of the solution prepared by coating agent C1 was higher than that of the solution prepared by the coating agent C1. With the increase of the content of the coating agent, the freezing point of the solution increases gradually, and the slow release property of the solution increases gradually, and the slow release property of the solution increases gradually with the increase of the content of the coating agent. (2) the coating of chloride salt melt ice agent has little effect on the high temperature and low temperature performance of the salt storage asphalt concrete. However, the high temperature and low temperature properties of asphalt concrete mixed with pure chlorine salt are obviously decreased, which indicates that chlorine salt has high temperature effect on asphalt concrete. The influence of low temperature performance can be improved by coating. The coating of organic compounds can greatly reduce the negative effect of chloride on the water stability of asphalt concrete. The water stability of salt storage asphalt concrete prepared by organic Cl chloride salt is the best. 3) compared with pure chlorine salt, the coating chloride melt ice agent reduces the short term ice melting performance of salt storage asphalt concrete. The low melting point C 3 is used as the coating agent, and the low melting point C 3 is used as the coating agent, and the low melting point C 3 is used as the coating agent. The short-term ice melting performance of salt storage asphalt concrete is better than that of salt storage asphalt concrete, and with the increase of coating agent content, the short-term ice melting performance of salt storage asphalt concrete decreases gradually, and the short term ice melting ability of salt storage asphalt concrete will be improved with the increase of the content of ice storage agent. The composition and structure of the coating chloride melting agent have great influence on the long-term ice melting performance of the salt storage asphalt concrete, and the salt storage asphalt concrete prepared by the coating agent C1 has a high salting-out rate after 12 hours of immersion. With the increase of the amount of coating agent, the long-term ice melting performance of salt storage asphalt concrete is gradually enhanced, but when the amount of coating agent increases to A3, the further increase of the amount of coating agent has little effect on the long-term ice melting performance. The results of outdoor snow melting experiment with sodium chloride as ice melting salt and the content of ice thawing agent being 5 show that the asphalt concrete coated with chlorine salt melting agent still has a certain degree of snow melting ability after being soaked for 12 hours. However, the asphalt concrete with pure chlorine salt has almost no snow melting effect after being soaked for 12 hours, which indicates that the long-term effect of salt storage asphalt concrete can be improved by coating chlorine salt.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U418.41

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 曾平;陳嵐;謝維躍;蔣佑清;蔣健;;利用廢醋酸制備環(huán)保型融冰劑的研究[J];化學(xué)工程師;2015年01期

2 李福林;;自融雪瀝青混合料及其性能評(píng)價(jià)[J];公路交通科技(應(yīng)用技術(shù)版);2014年05期

3 譚憶秋;侯明昊;單麗巖;孫嶸蓉;;蓄鹽瀝青路面緩釋絡(luò)合鹽填料的研制[J];建筑材料學(xué)報(bào);2014年02期

4 鄧云峰;;淺議交通建設(shè)的綠色循環(huán)低碳發(fā)展[J];青海交通科技;2014年01期

5 WenBing Yu;Xin Yi;Ming Guo;Lin Chen;;State of the art and practice of pavement anti-icing and de-icing techniques[J];Sciences in Cold and Arid Regions;2014年01期

6 薛忠軍;王春明;張榮榮;張濤;周緒利;;防冰瀝青混合料路用性能試驗(yàn)研究[J];公路交通科技;2014年01期

7 熊茂東;洪一波;江煒;;蓄鹽類SMA-13防凝冰瀝青混合料高溫性能試驗(yàn)研究[J];石油瀝青;2013年06期

8 韓志斌;;中國(guó)道路融冰除雪技術(shù)發(fā)展現(xiàn)狀及未來(lái)趨勢(shì)[J];公路與汽運(yùn);2013年06期

9 熊巍;趙帆;王友奎;雷宗建;段沖;;緩釋型防冰材料的合成和在瀝青路面中的應(yīng)用研究[J];合成材料老化與應(yīng)用;2013年05期

10 陳章;;瀝青路面除冰技術(shù)之比較[J];城市建筑;2013年02期

相關(guān)博士學(xué)位論文 前2條

1 況棟梁;滲透型再生劑的制備及其對(duì)再生瀝青及混合料性能的影響[D];武漢理工大學(xué);2012年

2 叢培良;環(huán)氧瀝青及其混合料的制備與性能研究[D];武漢理工大學(xué);2009年

相關(guān)碩士學(xué)位論文 前7條

1 孫嶸蓉;緩釋蓄鹽瀝青混合料的研發(fā)及性能的評(píng)價(jià)[D];哈爾濱工業(yè)大學(xué);2012年

2 吳淑娟;鹽化物瀝青混合料融冰雪性能及適應(yīng)性氣候分區(qū)研究[D];長(zhǎng)安大學(xué);2012年

3 張聰;橡膠顆粒瀝青路面耐久性研究[D];長(zhǎng)安大學(xué);2012年

4 李文靖;融雪抑冰復(fù)合填料的制備及其路用性能研究[D];長(zhǎng)安大學(xué);2012年

5 孫玉齊;鹽化物自融雪瀝青路面性能研究[D];長(zhǎng)安大學(xué);2011年

6 傅廣文;融雪劑對(duì)瀝青及瀝青混合料性能影響研究[D];長(zhǎng)沙理工大學(xué);2010年

7 趙瑩瑩;化學(xué)融雪劑的環(huán)境影響探討研究[D];東北師范大學(xué);2006年

，

本文編號(hào)：1581039