本文選題：溫拌膠粉改性瀝青 + 黏滯特性��； 參考：《內(nèi)蒙古工業(yè)大學(xué)》2017年碩士論文

【摘要】：膠粉改性瀝青因具有良好的路用性能而被廣泛應(yīng)用,隨著國(guó)家對(duì)綠色環(huán)保,節(jié)約能源要求的不斷提高,對(duì)膠粉改性瀝青施工技術(shù)也提出了更高的要求,在拌和技術(shù)的研究中多種技術(shù)手段被應(yīng)用,其中溫拌技術(shù)得到普遍認(rèn)可,對(duì)溫拌膠粉改性瀝青的研究逐漸成為研究的重點(diǎn)。本文選取降黏劑LP和表面活性劑SDYK分別添加到60目和混合目數(shù)膠粉改性瀝青中,分析不同溫拌劑在短期老化前后對(duì)膠粉改性瀝青高低溫流變性能的影響,推薦出最適宜本地區(qū)的溫拌劑和摻配量。通過(guò)三大指標(biāo)試驗(yàn)和黏度試驗(yàn)分析瀝青的高低溫性能及感溫性能,研究表明:添加LP和SDYK提高了膠粉改性瀝青的高溫性能,并增強(qiáng)了60目膠粉改性瀝青的低溫性能,但對(duì)混合目數(shù)膠粉改性瀝青的低溫性能有負(fù)面影響。由針入度指數(shù)、黏度指數(shù)和黏溫指數(shù)分析瀝青的感溫性能可知LP和SDYK降低了膠粉改性瀝青的感溫性,且各瀝青短期老化后感溫性減小。通過(guò)黏度和黏度老化指數(shù)分析表明:LP高溫降黏效果明顯,隨著摻量的增加降黏越明顯,但對(duì)膠粉改性瀝青抗老化性能有負(fù)面影響,而SDYK對(duì)膠粉改性瀝青的黏度和抗老化性能改善均不明顯。通過(guò)動(dòng)態(tài)剪切試驗(yàn)對(duì)短期老化前后的各種瀝青的高溫流變性能進(jìn)行分析,結(jié)果表明:添加LP和SDYK改善了膠粉改性瀝青高溫性能,其中對(duì)混合目數(shù)膠粉改性瀝青高溫性能的改善要優(yōu)于60目膠粉改性瀝青。且短期老化后,各瀝青的高溫性能增強(qiáng)。通過(guò)對(duì)車(chē)轍因子G*/(sinδ)和改進(jìn)車(chē)轍因子G*/(sinδ)9的比較分析可知,G*/(sinδ)9更適合進(jìn)行溫拌膠粉改性瀝青高溫穩(wěn)定性的評(píng)價(jià),其中摻量0.6%的基于表面活性劑型的溫拌混合目數(shù)膠粉改性瀝青(CRBHH0.6%)的高溫性能最優(yōu)。同時(shí)重復(fù)蠕變?cè)囼?yàn)分析結(jié)果表明:在短期老化前后,CRBHH0.6%改性瀝青變形恢復(fù)能力最好,短期老化后各改性瀝青變形恢復(fù)能力增強(qiáng)。通過(guò)彎曲流變儀試驗(yàn)對(duì)各種改性瀝青的低溫性能分析,結(jié)果表明:添加降黏劑后,膠粉改性瀝青中的S值減小,m值增大,提高了膠粉改性瀝青的低溫性能,但隨溫度的降低,低溫改善效果減小;而添加表面活性劑使膠粉改性瀝青的低溫性能變差。短期老化后,各改性瀝青的低溫抗裂性能降低,與添加溫拌劑的60目膠粉改性瀝青相比,添加溫拌劑的混合目數(shù)膠粉改性瀝青在短期老化后的低溫性能相對(duì)更差。比較可知CRBHH0.6%改性瀝青的低溫性能相對(duì)較好。
[Abstract]:Rubber powder modified asphalt has been widely used because of its good road performance. With the increasing requirement of green environmental protection and energy saving, the construction technology of rubber powder modified asphalt has also put forward higher requirements.In the research of mixing technology, a variety of technical means have been applied, among which the warm mixing technology has been generally accepted, and the research on the asphalt modified by warm mixing rubber powder has gradually become the focus of research.In this paper, the viscosity reducing agent LP and surfactant SDYK were added to 60 mesh and mixed number of rubber powder modified asphalt, respectively, and the effects of different warm mix agents on the rheological properties of rubber powder modified asphalt before and after short-term aging were analyzed.It is recommended that the most suitable warm mix agent and admixture amount in this area.The high and low temperature properties and temperature sensing properties of asphalt were analyzed by three index tests and viscosity test. The results showed that the addition of LP and SDYK improved the high temperature performance of asphalt modified by rubber powder and the low temperature performance of asphalt modified by 60 mesh rubber powder.But it has a negative effect on the low temperature performance of asphalt modified by mixed rubber powder.According to the penetration index, viscosity index and viscosity temperature index, the temperature sensitivity of asphalt was decreased by LP and SDYK, and the temperature sensitivity of each asphalt decreased after short-term aging.The analysis of viscosity and viscosity aging index shows that the viscosity reduction effect is obvious at high temperature, and the viscosity reduction is more obvious with the increase of content, but it has a negative effect on the aging resistance of asphalt modified by rubber powder.However, SDYK did not improve the viscosity and aging resistance of rubber powder modified asphalt.The high temperature rheological properties of asphalts before and after short term aging were analyzed by dynamic shear test. The results showed that the addition of LP and SDYK improved the high temperature properties of asphalt modified by rubber powder.The improvement of high temperature performance of mixed rubber powder modified asphalt is better than that of 60 mesh rubber powder modified asphalt.And after short-term aging, the high-temperature performance of each asphalt is enhanced.By comparing the rutting factor (G*/(sin 未) with the improved rut factor (G*/(sin 未 9), it is concluded that the modified asphalt is more suitable for the evaluation of the high temperature stability of the modified asphalt with warm rubber powder.The high temperature performance of the modified asphalt (CRBHH 0.6) with 0.6% of the amount of surface active agent based on the surface active agent is the best.At the same time, the results of repeated creep test show that the CRBH0.6% modified asphalt has the best deformation recovery ability before and after short-term aging, and the deformation recovery ability of each modified asphalt is enhanced after short-term aging.The low temperature performance of all kinds of modified asphalt was analyzed by bending rheometer test. The results showed that the S value of modified asphalt increased with the addition of viscosity reducing agent, and the low temperature performance of modified asphalt was improved with the decrease of temperature.The effect of low temperature improvement is reduced, and the low temperature performance of asphalt modified by rubber powder is deteriorated by adding surfactant.After short term aging, the low temperature cracking resistance of the modified asphalt was decreased. Compared with the 60 mesh rubber powder modified asphalt with warm mix agent, the low temperature performance of the modified asphalt was worse than that of the 60 mesh rubber powder modified asphalt after short term aging.The comparison shows that the low temperature performance of CRBH0.6% modified asphalt is relatively good.
【學(xué)位授予單位】：內(nèi)蒙古工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：U414

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 顧帆;徐波;王凱;;泡沫溫拌橡膠瀝青的低溫性能與評(píng)價(jià)指標(biāo)[J];河南科技大學(xué)學(xué)報(bào)(自然科學(xué)版);2016年03期

2 何亮;凌天清;馬育;何兆益;馬濤;黃曉明;;Sasobit溫拌橡膠瀝青及混合料高溫蠕變特性[J];長(zhǎng)安大學(xué)學(xué)報(bào)(自然科學(xué)版);2015年06期

3 賈鵬飛;;泡沫溫拌橡膠瀝青混合料成型溫度確定及路用性能研究[J];福建建筑;2015年11期

4 孫仁娟;周志東;孫同波;;基于Evotherm技術(shù)的MAC瀝青及混合料性能研究[J];中外公路;2015年05期

5 唐培培;申愛(ài)琴;付建村;;摻不同溫拌劑瀝青混合料的動(dòng)態(tài)模量及疲勞特性[J];建筑材料學(xué)報(bào);2016年03期

6 周?chē)?guó)慶;;有機(jī)類(lèi)溫拌橡膠瀝青流變改性機(jī)理研究[J];公路工程;2014年06期

7 楊躍煥;吳英彪;喬建剛;;Aspha-min溫拌瀝青膠結(jié)料性能試驗(yàn)研究[J];中外公路;2014年03期

8 楊通明;;Aspha-min溫拌橡膠瀝青混合料路用性能試驗(yàn)研究[J];公路交通技術(shù);2014年03期

9 李淑娥;陳永云;;Sasobit溫拌劑對(duì)橡膠瀝青高溫性能的影響研究[J];公路與汽運(yùn);2013年06期

10 徐忠乾;李昶;;時(shí)溫等效原理在車(chē)轍預(yù)估中的應(yīng)用[J];山東交通學(xué)院學(xué)報(bào);2013年01期

相關(guān)碩士學(xué)位論文 前4條

1 張小康;泡沫溫拌橡膠瀝青混合料路用性能研究[D];大連海事大學(xué);2015年

2 馮娟;溫拌瀝青膠結(jié)料降粘機(jī)理研究[D];新疆大學(xué);2013年

3 吳乃明;溫拌劑種類(lèi)對(duì)瀝青混合料性能影響的研究[D];東北林業(yè)大學(xué);2013年

4 肖敏敏;廢膠粉改性瀝青性能及機(jī)理研究[D];南京航空航天大學(xué);2005年

，

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