本文選題：道路工程　切入點：路面裂縫修補　出處：《長安大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：裂縫是瀝青路面主要早期病害之一，不僅破壞道路結(jié)構(gòu)完整性，還會降低行車的舒適性和安全性。由于環(huán)境溫度、交通荷載等因素的影響，裂縫將逐漸擴展，在雨水的作用下，對路面結(jié)構(gòu)造成進一步危害，使道路結(jié)構(gòu)逐漸失去承載能力，因此裂縫及時修補對道路正常使用意義重大。目前主要采用裂縫修補材料進行路面裂縫處理，但普通熱補材料適用于地段集中、工程量較大的路面維修，對于地段分散、工程量小的裂縫使用受限；而普通常溫施工修補材料低溫柔韌性差，與裂縫壁的粘結(jié)強度低，極易出現(xiàn)修補材料外溢、裂縫滲水等情況，加速裂縫擴展。因此，研發(fā)一種新型裂縫修補材料非常重要。 本文采用先改性后乳化的方式制備了一種性能優(yōu)良的SBS改性乳化瀝青路面裂縫修補材料，對其高低溫性能及抗老化性能進行了評價，并與市售的三種裂縫修補材料進行對比；考慮到路面修補材料所處的界面環(huán)境不同，本文評價了不同界面條件下裂縫修補材料與裂縫壁的粘附性能。主要研究內(nèi)容如下： 依據(jù)改性乳化工藝難易程度、改性乳化瀝青性能基本性能優(yōu)劣初步優(yōu)選了制備裂縫修補材料的原材料；系統(tǒng)研究不同材料組成及制備條件對改性乳化瀝青裂縫修補材料性能的影響規(guī)律，確定最優(yōu)制備方案。 利用軟化點、流動度、動態(tài)剪切流變（DSR）等試驗評價了乳化瀝青路面裂縫修補材料的高溫性能；通過延度、低溫彎曲流變（BBR）等試驗表征了乳化瀝青路面裂縫修補材料的低溫性能；使用壓力老化（PAV）試驗對材料老化前后的軟化點、延度及彈性恢復(fù)進行對比，研究其抗老化性能。結(jié)果表明，與市售的三種常用常溫施工裂縫修補材料相比，本文研制的裂縫修補材料具有優(yōu)良的高低溫性能及抗老化性能。 通過研究不同濕度、腐蝕、油污及不作處理四種界面情況時修補材料與裂縫壁的粘附性，探究影響路面修補材料粘附性能的主要因素。結(jié)果表明，，本文研制的裂縫修補材料在水、酸性、油污環(huán)境中粘結(jié)強度較其他三種材料好，灌縫后耐久性也最佳。
[Abstract]:Crack is one of the major early diseases of asphalt pavement, not only destroy the structural integrity of the road, but also reduce the driving comfort and safety. Due to the environmental temperature, the influence factors of traffic load, the crack expands gradually, under the effect of rain, causing further damage to the pavement structure, road structure gradually lose the bearing capacity therefore, timely repair cracks on the road of normal use of great significance. At present the main crack repair material for pavement cracks, but ordinary repair materials suitable for lots of concentrated, large amount of pavement maintenance engineering, for lots of cracks scattered, small engineering quantity restricted use; and ordinary construction repair materials at room temperature and low temperature flexibility, bond strength and the low wall cracks, prone to repair material overflow, crack seepage conditions, accelerated crack propagation. Therefore, the development of a new crack repair material is very heavy To.
The first modified emulsion was prepared by way of a kind of excellent performance of SBS modified emulsified asphalt pavement crack repair material, the high temperature performance and anti aging properties were evaluated and compared three kinds of crack repair material with commercially available; considering the Pavement interface environment at different repair materials in this paper, the evaluation of adhesion performance of different interface conditions of crack repair material and cracks. The main research contents are as follows:
Based on the modified emulsification degree of difficulty, change the basic performance of emulsified asphalt quality preliminary optimization raw materials preparation of crack repair material; system of different material composition and preparation effect of modified emulsified asphalt crack repairing materials of conditions, to determine the optimal preparation scheme.
The softening point, fluidity, dynamic shear rheometer (DSR) test evaluation of high-temperature performance of asphalt crack filling material by emulsion; ductility, low temperature rheological bending (BBR) test to characterize the performance of low temperature crack repair material emulsified asphalt pavement; use pressure aging (PAV) test on the material before and after aging softening the extension of point, contrast and elastic recovery, study its anti aging properties. The results show that, compared with the commercially available three kinds of normal construction materials for mending cracks, crack repair material developed in this paper has excellent high temperature performance and anti-aging properties.
The effects of different humidity, corrosion, oil and do not deal with four kinds of interface adhesion of repair materials and cracks, explore the main factors affecting the adhesion performance of pavement repair material. The results show that the crack repair material developed in water, acid, oil pollution in bond strength than the other three kinds of materials, irrigation after the joint durability is also the best.

【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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本文編號：1644679