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1 畢業(yè) 論文 SBS 改性瀝青配合比和施工技術(shù) 系 別: 道橋系 專 業(yè): 道路 橋梁 工程 技術(shù) (檢測方向 ) 班 級: 09161 姓 名: 劉航宇 學(xué)號: 12 指導(dǎo)教師: 劉存柱 職稱: 教授 完成期限: 2021 年 3 月 1 日 — 6 月 8 日 2 SBS 改性瀝青配合比和施工技術(shù) 劉航宇 【摘 要】 現(xiàn)代公路和道路發(fā)生許多變化,交通流量和行駛頻度急劇增加,貨運(yùn)車的軸重不斷增加,要求進(jìn)一步提高路面的抗流動(dòng)性,提高柔性和彈性,提高耐磨耗能力和延長使用壽命。對石油瀝青改性,使其適應(yīng)上述苛刻的使用要求,引起了人們的重視。 聚合物改性瀝青是一種技術(shù)含量和附加值較高的新型優(yōu)質(zhì)筑路材料。它通過把聚合物摻入道路瀝青中而改善使用性能,能顯著延長路面壽命、降低噪聲、提高行車舒適性和安全性, SBS 瀝青作為一種改性瀝青膠結(jié)料,早在20 世紀(jì) 90 年代就已出現(xiàn),由于 SBS 是一種熱塑性橡膠共聚物,使用量大,費(fèi)用較高,由于受 經(jīng)濟(jì) 條件限制,所以在國內(nèi)一直沒有大面積推廣。 本文我們將主要討論 SBS 改性瀝青配合比以及施工技術(shù)方面的問題。 【 關(guān)鍵詞 】 : SBS 瀝青混合料 配合比設(shè)計(jì) 技術(shù)要求 施工 質(zhì)量控制 SBS modified asphalt mixture ratio and construction technology Liu hangyu Modern roads and road happen many changes, the traffic flow and driving frequency increase sharply, freight car of axle load increasing, asked for further improve the resistance of liquidity, improve the flexibility and elasticity, improve abrasion resistance ability and prolong service life. Asphalt modification for oil, making it hard to adapt to the use of the above requirements, caused the people39。s attention. Polymer modified asphalt is a high technology new high quality road materials. It through the polymer mixed with road asphalt and improve service performance, can significantly extend life, reduce noise, increase fort and safety, SBS asphalt, as a kind of modified asphalt cementing material, in the early 1990 s already appeared, because the SBS is a kind of China has not widespread. In this paper, we mainly discuss SBS modified asphalt construction technical . key words: SBS asphalt mixing ratio of design technical requirements construction quality control 3 目錄 第一章、發(fā)展概況 .........................................................................................................................................1 SBS 改性瀝青簡介 ..............................................................................................................................1 SBS 改性瀝青機(jī)理 ..............................................................................................................................1 SBS 改性瀝青的特性 ..........................................................................................................................2 SBS 改性瀝青的生產(chǎn) ..........................................................................................................................2 改性瀝青的技術(shù)標(biāo)準(zhǔn) ..........................................................................................................................3 第二章、配合比設(shè)計(jì) ....................................................................................................................................5 材料選擇與準(zhǔn)備 ..................................................................................................................................5 粗集料 ..........................................................................................................................................5 細(xì)集料 ..........................................................................................................................................5 填充料 ..........................................................................................................................................5 SBS 改性瀝青技術(shù)要求 ............................................................................................................6 SBS 改性瀝青試驗(yàn)中應(yīng)注 意的問題 .......................................................................................7 瀝青混合料配合比設(shè)計(jì) ......................................................................................................................7 級配 ...............................................................................................................................................7 粉膠比 ..........................................................................................................................................7 馬歇爾試驗(yàn)混合料技術(shù)指標(biāo) .....................................................................................................8 試驗(yàn)注意事項(xiàng) ...............................................................................................................................8 確定最佳瀝青用量 (或油石比 ) ..................................................................................................9 第三章、 SBS瀝青混合料的施工 ............................................................................................................ 13 運(yùn)輸?shù)募夹g(shù)要求 ............................................................................................................................... 13 瀝青拌合場儲存的技術(shù)要求 .......................................................................................................... 13 泵送的技術(shù)要求 ............................................................................................................................... 13 拌合、運(yùn)輸?shù)募夹g(shù)要求 ................................................................................................................... 14 攤鋪的技術(shù)要求 ............................................................................................................................... 14 碾壓與成型的技術(shù)要求 ................................................................................................................... 15 SBS 瀝青混合料的質(zhì)量控制 .......................................................................................................... 16 第四章、結(jié)論 (或總結(jié) )............................................................................................................................... 18 改性瀝青配比和施工 1 第一章 發(fā)展概況 SBS 改性瀝青簡介 SBS 改性瀝青是在原有基質(zhì)瀝青( AH70)的基礎(chǔ)上,摻加 %、 %、%的 SBS 改性劑,改性后的瀝青,與原瀝青相比,其高溫粘度增大,軟化點(diǎn)升高。在良好的設(shè)計(jì)配合比和施工條件下,瀝青