發(fā)布時(shí)間：2018-03-02 17:38

  本文選題：橋面鋪裝　切入點(diǎn)：SBS改性瀝青　出處：《吉林大學(xué)》2015年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：近年來(lái)我國(guó)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(chē)載荷對(duì)橋面板的沖擊，能夠保證行車(chē)的舒適性和安全性。因此，針對(duì)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(xiàng)目，重點(diǎn)針對(duì)鋪裝材料的組合設(shè)計(jì)與防水粘結(jié)層的選擇進(jìn)行深入研究，對(duì)現(xiàn)有橋面鋪裝材料的組合設(shè)計(jì)進(jìn)行改進(jìn)，對(duì)防水粘結(jié)層的路用性能進(jìn)行對(duì)比，力求延長(zhǎng)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(jìn)行如下研究工作： （1）對(duì)瀝青混凝土所用基質(zhì)瀝青、粗細(xì)集料以及填料性能進(jìn)行了測(cè)試，得到試驗(yàn)結(jié)果均滿(mǎn)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(duì)基質(zhì)瀝青進(jìn)行改性，，并對(duì)不同摻量SBS改性瀝青進(jìn)行針入度、軟化點(diǎn)、延度、彈性恢復(fù)布氏試驗(yàn)。綜合3%、4%及5%摻量的SBS改性瀝青性能試驗(yàn)結(jié)果確定摻量5%為最佳摻量，在實(shí)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(guò)對(duì)上下層瀝青混合料進(jìn)行配合比設(shè)計(jì)，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(jí)配曲線(xiàn)，并經(jīng)試驗(yàn)驗(yàn)證得到上下層瀝青混合料中SBS改性瀝青最佳油石比。通過(guò)對(duì)上下層瀝青混合料進(jìn)行車(chē)轍試驗(yàn)、小梁彎曲試驗(yàn)以及凍融劈裂試驗(yàn)，驗(yàn)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(guò)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(guò)基本性能試驗(yàn)確定了三種防水粘結(jié)材料的基本物理性質(zhì)和力學(xué)性質(zhì)。之后，通過(guò)斜剪試驗(yàn)、直剪試驗(yàn)和直接拉伸試驗(yàn)對(duì)其路用性能進(jìn)行研究。通過(guò)研究發(fā)現(xiàn)，AMP-100二階反應(yīng)型防水粘結(jié)材料相對(duì)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(qiáng)度、直剪強(qiáng)度和直接拉伸強(qiáng)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(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：U444;U443.33

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