本文選題：溫拌 + 橡膠瀝青��； 參考：《哈爾濱工業(yè)大學(xué)》2015年碩士論文

【摘要】：橡膠瀝青路面具有優(yōu)良的路用性能,其抗老化和抗疲勞性能更優(yōu)于其它改性瀝青混合料,廣泛應(yīng)用于道路建設(shè)中。然而,由于橡膠瀝青混合料的施工溫度較高,施工期間的排放問題更為突出。溫拌技術(shù)具有在保證混合料品質(zhì)的前提下,降低施工溫度進(jìn)而降低排放的特點(diǎn)。因此將溫拌技術(shù)應(yīng)用于橡膠瀝青路面中,在確保工程質(zhì)量的同時(shí)對(duì)廢輪胎粉的應(yīng)用將產(chǎn)生積極地影響。首先,通過對(duì)現(xiàn)有橡膠瀝青混合料設(shè)計(jì)方法進(jìn)行研究,提出溫拌橡膠瀝青混合料設(shè)計(jì)關(guān)鍵參數(shù),并對(duì)AR-AC13及AR-HM13溫拌橡膠瀝青混合料進(jìn)行了配合比設(shè)計(jì),在確定混合料級(jí)配、最佳油石比的條件下,進(jìn)行了混合料的力學(xué)性能及路用性能驗(yàn)證,結(jié)果表明:兩種溫拌橡膠瀝青混合料均具有較好的路用性能,其中AR-AC13橡膠瀝青混合料的低溫及抗疲勞性能更優(yōu),溫拌AR-HM13橡膠瀝青混合料的高溫穩(wěn)定性更優(yōu)。其次,論文研究溫拌劑對(duì)橡膠瀝青路面路用性能產(chǎn)生的影響。添加Sasobit溫拌劑時(shí)其高溫穩(wěn)定性和水穩(wěn)定性改善明顯,而低溫性能變差;Evotherm溫拌劑的添加會(huì)對(duì)低溫性能產(chǎn)生不利影響,而水穩(wěn)定性并無較大影響。再者,對(duì)溫拌橡膠瀝青混合料拌合及壓實(shí)溫度進(jìn)行研究,提出利用Steady shear flow viscosity法計(jì)算出的溫拌橡膠瀝青拌合和壓實(shí)溫度與工程實(shí)際較吻合;在使用Sasobit溫拌橡膠瀝青時(shí),推薦拌合溫度為165~170℃,推薦成型溫度為155~160℃;在使用Evotherm溫拌橡膠瀝青混合料時(shí),推薦拌合溫度為170~175℃,推薦成型溫度為160~165℃。最后,驗(yàn)證分析試驗(yàn)路段的關(guān)鍵參數(shù)及經(jīng)濟(jì)技術(shù)指標(biāo)。得出橡膠瀝青混合料及溫拌橡膠瀝青混合料的出料溫度分別為180℃及160℃,采用同樣的攤鋪及碾壓工藝,溫拌橡膠瀝青的壓實(shí)度、滲水及構(gòu)造深度檢測(cè)結(jié)果優(yōu)于橡膠瀝青混合料,而且溫拌橡膠瀝青路面施工過程中對(duì)降低污染物的排放具有顯著的社會(huì)效益。
[Abstract]:Rubber asphalt pavement has excellent pavement performance, its anti-aging and anti-fatigue performance is better than other modified asphalt mixture, widely used in road construction. However, due to the high construction temperature of rubber asphalt mixture, the discharge problem during construction is more prominent. Warm mixing technology has the characteristics of reducing the construction temperature and then reducing the discharge under the premise of ensuring the quality of mixture. Therefore, the application of warm mixing technology in rubber asphalt pavement will have a positive impact on the application of waste tire powder while ensuring the engineering quality. First of all, through the research of the existing rubber asphalt mixture design method, the key parameters of the warm mix rubber asphalt mixture design are put forward, and the mix ratio design of AR-AC13 and AR-HM13 warm mix rubber asphalt mixture is carried out to determine the mixture gradation. The mechanical properties and road performance of the mixture are verified under the optimum asphalt ratio. The results show that the two kinds of warm rubber asphalt mixture have better road performance. The low temperature and fatigue resistance of AR-AC13 rubber asphalt mixture is better, and the high temperature stability of warm mixed AR-HM13 rubber asphalt mixture is better. Secondly, the paper studies the influence of warm mix agent on road performance of rubber asphalt pavement. The high temperature stability and water stability of Sasobit warm mix agent were improved obviously, but the low temperature performance of Evotherm warm mix agent had adverse effect on the low temperature performance, but the water stability was not greatly affected. Furthermore, the mixing and compaction temperature of warm rubber asphalt mixture is studied, and it is put forward that the mixing and compaction temperature of warm rubber asphalt mixture calculated by Steady shear flow viscosity method is in good agreement with the engineering practice. When using Sasobit warm mix rubber asphalt, the temperature of mixing and compaction of warm rubber asphalt mixture calculated by Steady shear flow viscosity method is in good agreement with the engineering practice. The recommended mixing temperature is 165C and the recommended molding temperature is 155C, and when Evotherm is used, the mixing temperature is 170 ~ 175 鈩，

本文編號(hào)：1803151