抗凝冰瀝青混合料論文：抗凝冰瀝青混合料技術(shù)研究

1、 抗凝冰瀝青混合料論文：抗凝冰瀝青混合料技術(shù)研究【中文摘要】我國云貴川高原山區(qū)冬季潮濕多雨,路面極易形成凝冰而使其抗滑能力大幅度降低,既降低了道路的通行能力,容易產(chǎn)生惡性交通事故,又會對道路及其附屬構(gòu)造物產(chǎn)生破壞,嚴重時還會造成交通中斷、人們的生活和生產(chǎn)無法正常進行,甚至危害人民生命和財產(chǎn)的安全。這給我國道路工程技術(shù)人員提出了新的課題,建設(shè)具有抗凝冰性能的路面已迫在眉睫。因此,本文結(jié)合貴州省科技支撐項目云貴川高原潮濕路面凝冰(暗冰)防治技術(shù)研究,進行了抗凝冰瀝青混合料的研究。本論文通過試驗研究及理論分析,通過制備抗凝冰集料入手,解決了抗凝冰瀝青混合料的目標配合比設(shè)計和抗凝冰性能評價等問題,同時

2、保證抗凝冰瀝青混合料高溫性能、低溫性能、水穩(wěn)定性能等路用性能滿足規(guī)范要求。此外還對抗凝冰微表處的配合比設(shè)計和抗凝冰性能評價做了初步研究。本文主要成果有:通過對凝冰的形成機理和鹽的除冰機理分析,選用氯化鈉和氯化鈣作為本文研究用抗凝冰成分用鹽,制備出抗凝冰瀝青混合料用集料,通過室內(nèi)試驗,證實了氯化物的緩釋性、抗凝冰的可能性;通過等體積替換法則將抗凝冰集料替換成密度相差很大的普通集料,組成了全新的抗凝冰瀝青混合料,使用浸漬法,準確求得其在不同油石比下的最大理論相對密度,通過馬歇爾試驗,確定其最佳油石比;通過室內(nèi)試驗對比分析,評價抗凝冰瀝青混合料的抗凝冰效果,證明其作為一種特殊的瀝青混合料能有效降低山

3、區(qū)凝冰災(zāi)害多發(fā)區(qū)的路面結(jié)冰點,減小了凝冰的產(chǎn)生概率,同時保證高溫性能、低溫性能、水穩(wěn)定性能等路用性能滿足規(guī)范要求;此外還將抗凝冰沸石集料應(yīng)用于微表處中,對抗凝冰微表處的配合比設(shè)計和抗凝冰性能評價等問題做了初步研究。本文最終表明,抗凝冰瀝青混合料具有良好抗凝冰性能,能有效降低冬季路面冰點,同時也具備了很好的高溫性能、低溫性能、水穩(wěn)定性能,具備了優(yōu)異的路用性能,在云貴川高原凝冰多發(fā)山區(qū)的公路建設(shè)中擁有廣闊的應(yīng)用前景。【英文摘要】Yunnan-Guizhou Plateau in China Sichuan mountain humid and rainy in winter, the road t

4、o easily slide the formation of condensation of ice and a significant reduction in capacity, not only reduces the road capacity, it is easy creating a vicious traffic accidents, and road and its subsidiary structures will produce damage can also cause serious traffic disruption, peoples living and p

5、roduction can not be normal, and even endanger peoples lives and property. This gives our road engineers sounded the alarm, building roads with anticoagulant properties of ice is imminent. Therefore, this paper support the national science and technology project “Yunnan, Guizhou, Sichuan Plateau pou

6、r wet ground ice (dark ice) control techniques”, were anticoagulant mixture of ice. This paper, through experimental research and theoretical analysis of aggregate through the preparation of ice starting anticoagulation, the anticoagulant solution mixture of ice goal ice mix design and performance e

7、valuation of anticoagulation and other issues, while ensuring high-temperature asphalt anticoagulant properties of ice , low temperature performance, such as water, road performance and stable performance to meet regulatory requirements.In this paper, the results are: the formation of ice on coagula

8、tion mechanism and the mechanism of de-icing salt, sodium chloride and calcium chloride used as anticoagulant ice studied composition with salt, prepared with anticoagulant mixture of ice aggregate Through laboratory tests, confirmed the release of chloride can be, the possibility of ice anticoagula

9、tion; by law to replace an equal volume of ice aggregate anticoagulant replace the vast difference between the density of ordinary aggregate to form a new anticoagulant ice mixture, using the immersion method, obtain the maximum theoretical relative density, through the Marshall test, to determine i

10、ts most recent Asphalt; comparative analysis of laboratory experiments to evaluate anticoagulant anticoagulant mixture of ice ice effect, as a proof of species of special asphalt mixture can reduce the mountain of ice pour the road is icy disaster-prone areas point, reducing the probability of conde

11、nsate produced ice, while maintaining high temperature performance, low temperature, water, road performance and stable performance, etc. to meet the specifications; briefed anticoagulant ice asphalt pavement construction technology, the construction process should be noted that the problem is analy

12、zed. This finally shows that the ice anticoagulant anticoagulant mixture of ice with good performance, can reduce the freezing point of the winter road, but also has good high temperature performance, low temperature, water stability, with a superior road performance, the Yunnan, Guizhou, Sichuan Pl

13、ateau pour ice-prone mountain highway construction has broad application prospects.【關(guān)鍵詞】抗凝冰瀝青混合料 抗凝冰集料 配合比設(shè)計 抗凝冰性能 路用性能【英文關(guān)鍵詞】Anticoagulant mixture of ice anticoagulation ice aggregate mix design anticoagulant properties of ice road performance【目錄】抗凝冰瀝青混合料技術(shù)研究摘要3-4ABSTRACT4-5第一章 緒論8-191.1 課題背景及研究意義8

14、-111.2 國內(nèi)外研究現(xiàn)狀11-171.2.1 凝冰災(zāi)害預(yù)警措施研究11-121.2.2 路面積雪處治措施研究12-131.2.3 抗凝冰路面技術(shù)研究13-151.2.4 凝冰災(zāi)害應(yīng)對措施研究15-171.3 主要研究內(nèi)容17-19第二章 抗凝冰鹽的選擇及蓄鹽集料的制備19-322.1 鹽類的除冰機理分析19-212.1.1 凍雨的形成機理分析19-202.1.2 鹽類的除冰機理分析20-212.2 抗凝冰鹽的理化性質(zhì)及其選擇21-232.2.1 各種抗凝冰鹽的理化性質(zhì)21-232.2.2 研究用抗凝冰鹽的選擇232.3 蓄鹽集料的制備及性能檢驗23-302.3.1 沸石簡介23-252.3

15、.2 蓄鹽沸石集料的制備25-282.3.3 蓄鹽沸石集料氯離子可釋性研究28-302.4 本章小結(jié)30-32第三章 抗凝冰瀝青混合料配合比設(shè)計32-473.1 抗凝冰瀝青混合料AC-13 配合比設(shè)計32-353.1.1 瀝青混合料設(shè)計方法32-333.1.2 抗凝冰瀝青混合料配合比設(shè)計33-353.2 原材料35-383.2.1 結(jié)合料353.2.2 集料和礦粉35-383.2.3 沸石集料383.3 礦料級配設(shè)計38-403.3.1 級配設(shè)計38-403.3.2 體積換算403.4 抗凝冰瀝青混合料AC-13 最佳瀝青用量的確定40-453.4.1 理論最大相對密度40-423.4.2 最

16、佳瀝青用量的確定42-453.5 本章小結(jié)45-47第四章 抗凝冰瀝青混合料的性能研究47-704.1 混合料抗凝冰性能研究47-574.1.1 抗凝冰沸石集料試件破碎觀測47-484.1.2 抗凝冰成分可釋性研究48-534.1.3 抗凝冰效果觀測及評價53-574.2 混合料高溫穩(wěn)定性57-614.2.1 高溫性能試驗方法58-594.2.2 車轍實驗59-614.3 混合料低溫性能61-654.3.1 混合料低溫性能試驗方法62-644.3.2 混合料低溫彎曲試驗64-654.4 混合料水穩(wěn)定性能65-694.4.1 浸水馬歇爾試驗66-674.4.2 凍融劈裂試驗67-694.5 本章