SBS改性劑對瀝青及瀝青混合料性能的影響
發(fā)布時間：2018-08-05 09:31
【摘要】：我國瀝青路面在交通荷載和環(huán)境因素作用下出現(xiàn)了多種明顯的早期病害，常規(guī)的瀝青混凝土很難滿足現(xiàn)行交通荷載的需要，目前多嘗試多種路面結(jié)構(gòu)類型和路面材料來適應(yīng)這一特點。而對路面結(jié)構(gòu)的調(diào)整是較為復(fù)雜的工程，因此目前多采用在路面材料中加入改性劑來提高其路用性能。在常用的添加劑中，，SBS改性劑由于其性能優(yōu)良、工藝簡單易于推廣而得到了廣泛的使用。本論文主要對SBS改性劑對瀝青和瀝青混合料的影響進行了分析。本文的主要研究內(nèi)容和結(jié)論分別如下： 首先在試驗室內(nèi)對SBS改性瀝青結(jié)合料的制備工藝進行了論述，而后研究了不同的用量對瀝青技術(shù)性能指標(biāo)的影響，在其基礎(chǔ)上對SBS瀝青混合料的級配進行設(shè)計，研究了不同的SBS加入量對瀝青混合料路用性能的影響。同時結(jié)合項目工程的需要，對瀝青混合料的剪切性能進行了試驗。在對其路面性能試驗時，高溫性能采用了車轍試驗；水穩(wěn)定性采用了浸水馬歇爾試驗和凍融劈裂試驗；低溫性能采用了小梁試驗，抗剪性能采用了無側(cè)限抗壓試驗和劈裂抗拉試驗。 通過試驗分析了SBS對瀝青及瀝青混合料性能的影響，結(jié)合實體工程，對SBS瀝青路面的施工方法和質(zhì)量評定進行了論述。通過本文的研究，可為SBS改性瀝青混合料的設(shè)計及施工具有一定的理論指導(dǎo)。
[Abstract]:Under the action of traffic load and environment factors, there are many kinds of early diseases in asphalt pavement in China, and the conventional asphalt concrete is difficult to meet the needs of the current traffic load. At present, many kinds of pavement structure types and pavement materials are tried to adapt to this characteristic. However, the adjustment of pavement structure is more complicated, so the road performance is improved by adding modifier to pavement material. SBS modifier has been widely used in common additives because of its excellent properties and simple process. In this paper, the influence of SBS modifier on asphalt and asphalt mixture is analyzed. The main contents and conclusions of this paper are as follows: firstly, the preparation process of SBS modified asphalt binder is discussed in the laboratory, and then the influence of different dosage on the technical performance of asphalt is studied. On the basis of this, the gradation of SBS asphalt mixture is designed, and the influence of different SBS content on the pavement performance of asphalt mixture is studied. At the same time, the shear performance of asphalt mixture is tested according to the need of the project. In the pavement performance test, rutting test was used for high temperature performance, Marshall test and freeze-thaw splitting test for water stability, trabecular test for low temperature performance, The shear properties were tested by non-lateral compression test and split tensile test. This paper analyzes the influence of SBS on asphalt and asphalt mixture performance through test, and discusses the construction method and quality evaluation of SBS asphalt pavement combined with solid engineering. The research in this paper can provide some theoretical guidance for the design and construction of SBS modified asphalt mixture.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U414
本文編號：2165374
[Abstract]:Under the action of traffic load and environment factors, there are many kinds of early diseases in asphalt pavement in China, and the conventional asphalt concrete is difficult to meet the needs of the current traffic load. At present, many kinds of pavement structure types and pavement materials are tried to adapt to this characteristic. However, the adjustment of pavement structure is more complicated, so the road performance is improved by adding modifier to pavement material. SBS modifier has been widely used in common additives because of its excellent properties and simple process. In this paper, the influence of SBS modifier on asphalt and asphalt mixture is analyzed. The main contents and conclusions of this paper are as follows: firstly, the preparation process of SBS modified asphalt binder is discussed in the laboratory, and then the influence of different dosage on the technical performance of asphalt is studied. On the basis of this, the gradation of SBS asphalt mixture is designed, and the influence of different SBS content on the pavement performance of asphalt mixture is studied. At the same time, the shear performance of asphalt mixture is tested according to the need of the project. In the pavement performance test, rutting test was used for high temperature performance, Marshall test and freeze-thaw splitting test for water stability, trabecular test for low temperature performance, The shear properties were tested by non-lateral compression test and split tensile test. This paper analyzes the influence of SBS on asphalt and asphalt mixture performance through test, and discusses the construction method and quality evaluation of SBS asphalt pavement combined with solid engineering. The research in this paper can provide some theoretical guidance for the design and construction of SBS modified asphalt mixture.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U414
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