本文選題：橋面鋪裝　切入點：SBS改性瀝青　出處：《吉林大學》2015年碩士論文　論文類型：學位論文

【摘要】：近年來我國交通基礎(chǔ)設(shè)施發(fā)展迅猛，公路橋梁建設(shè)如火如荼。作為橋梁的重要組成部分，橋面鋪裝可以減輕行車載荷對橋面板的沖擊，能夠保證行車的舒適性和安全性。因此，針對橋面鋪裝層性能的研究顯得極為重要。 本文依托《快速路高架橋橋面鋪裝典型結(jié)構(gòu)與材料研究》項目，重點針對鋪裝材料的組合設(shè)計與防水粘結(jié)層的選擇進行深入研究，對現(xiàn)有橋面鋪裝材料的組合設(shè)計進行改進，對防水粘結(jié)層的路用性能進行對比，力求延長橋面鋪裝層的使用壽命，提高橋面鋪裝層的使用耐久性，最終提出適合季凍區(qū)氣候環(huán)境的橋面鋪裝層與防水粘結(jié)層的最優(yōu)組合。本文主要進行如下研究工作： （1）對瀝青混凝土所用基質(zhì)瀝青、粗細集料以及填料性能進行了測試，得到試驗結(jié)果均滿足技術(shù)規(guī)范中相關(guān)要求。為了提升瀝青的高低溫性能以及耐久性能，采用應(yīng)用最為廣泛的SBS改性劑對基質(zhì)瀝青進行改性，，并對不同摻量SBS改性瀝青進行針入度、軟化點、延度、彈性恢復布氏試驗。綜合3%、4%及5%摻量的SBS改性瀝青性能試驗結(jié)果確定摻量5%為最佳摻量，在實際工程中采用5%摻量SBS改性瀝青作為瀝青混凝土膠結(jié)料。 （2）通過對上下層瀝青混合料進行配合比設(shè)計，確定了AC-13C SBS改性瀝青混合料與AC-16C基質(zhì)瀝青混合料的合成級配曲線，并經(jīng)試驗驗證得到上下層瀝青混合料中SBS改性瀝青最佳油石比。通過對上下層瀝青混合料進行車轍試驗、小梁彎曲試驗以及凍融劈裂試驗，驗證了AC-13C SBS改性瀝青混合料與AC-16C基質(zhì)瀝青混合料的高溫穩(wěn)定性、低溫抗裂性以及水穩(wěn)定性。 （3）通過材料比選，確定將7611型環(huán)氧瀝青、SBS改性瀝青和AMP-100二階反應(yīng)型防水粘結(jié)材料3種防水粘結(jié)材料作為備選材料。首先通過基本性能試驗確定了三種防水粘結(jié)材料的基本物理性質(zhì)和力學性質(zhì)。之后，通過斜剪試驗、直剪試驗和直接拉伸試驗對其路用性能進行研究。通過研究發(fā)現(xiàn)，AMP-100二階反應(yīng)型防水粘結(jié)材料相對于7611型環(huán)氧瀝青防水粘結(jié)料和SBS改性瀝青，有較高的斜剪強度、直剪強度和直接拉伸強度。
[Abstract]:As an important part of bridge, bridge deck pavement can reduce the impact of driving load on bridge deck, and ensure the comfort and safety of driving, because of the rapid development of transportation infrastructure and the construction of highway bridge in China in recent years. Therefore, as an important part of bridge, bridge deck pavement can reduce the impact of driving load on bridge deck. It is very important to study the performance of bridge deck pavement. Based on the project of "study on typical structure and Materials of Bridge Deck pavement of Expressway Viaduct", this paper focuses on the combination design of pavement material and selection of waterproof adhesive layer, and improves the combination design of existing bridge deck pavement material. The road performance of waterproof adhesive layer is compared in order to prolong the service life of bridge deck pavement and improve the durability of bridge deck pavement. Finally, the optimal combination of bridge deck pavement and waterproof adhesive layer suitable for seasonal climate environment is put forward. The main work of this paper is as follows:. 1) the performance of asphalt matrix, coarse aggregate and filler used in asphalt concrete is tested, and the results show that the test results all meet the relevant requirements of the technical specification, in order to improve the high and low temperature performance and durability of asphalt, The most widely used SBS modifier was used to modify the asphalt matrix, and the penetration, softening point and ductility of the modified asphalt with different SBS content were studied. Based on the results of 3% and 5%% SBS modified asphalt performance tests, it is determined that 5% is the best content, and 5% SBS modified asphalt is used as asphalt concrete binder in practical engineering. (2) the composite gradation curve of AC-13C SBS modified asphalt mixture and AC-16C matrix asphalt mixture is determined by the mix ratio design of upper and lower layer asphalt mixture. The optimum bitumen ratio of SBS modified asphalt in upper and lower layer asphalt mixture is obtained by test. Through rutting test, trabecular bending test and freeze-thaw splitting test, the asphalt mixture of upper and lower layers is tested. The high temperature stability, low temperature crack resistance and water stability of AC-13C SBS modified asphalt mixture and AC-16C matrix asphalt mixture were verified. (3) through material comparison, Three kinds of waterproof adhesive materials, 7611 epoxy asphalt modified bitumen and AMP-100 second-order reactive waterproof binder, were selected as alternative materials. Firstly, the basic physical properties of the three waterproof binders were determined through basic performance tests. And mechanical properties. Through oblique shear test, direct shear test and direct tensile test, it is found that the second order reactive waterproof binder of AMP-100 has higher skew shear strength than 7611 epoxy asphalt waterproof binder and SBS modified asphalt. Direct shear strength and direct tensile strength.
【學位授予單位】：吉林大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U444;U443.33

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