瀝青路面裂縫和坑槽養護維修技術的研究

瀝青路面裂縫和坑槽養護維修技術的研究

<瀝青路面裂縫和坑槽養護維修技術的研究>是2002年康敬東所著的博士論文。

基本介紹

  • 中文名:瀝青路面裂縫和坑槽養護維修技術的研究
論文信息,中文摘要,外文摘要,

論文信息

副題名
外文題名
論文作者:康敬東著
導師:孫祖望指導
學科專業:機械設計與理論
學位級別:d 2002n
學位授予單位:長安大學
學位授予時間:2002
關鍵字:瀝青路面 公路 道路養護 路面
館藏號:U418
唯一標識符:108.ndlc.2.1100009031010001/T3F24.002646792
館藏目錄:2005\U418\3

中文摘要

本文著重針對瀝青路面裂縫和坑槽這兩類最常見的破損,對其形成原因、修補機理、修補材料及施工工藝進行了系統、全面的研究。
根據瀝青路面裂縫和坑槽破損的幾何形狀及成因,對其作了全面、細緻的分類,並對其大小和嚴重程度等級進行了劃分。逐一針對本文提出的瀝青路面六種典型裂縫和四種典型坑槽的破損機理進行了深入分析,並首次對瀝青路面裂縫填封和坑槽修補機理進行了分析研究,提出了獲得理想維修效果的具體要求。同時,還分析了填封裂縫和修補坑槽再破損的原因,並通過對不同裂縫填封時機的比較分析,得出較佳的填封時期。為使修補坑槽的密實度和平整度能同時獲得保證,本文提出了松鋪係數控制法和修補料用量控制法,來準確控制修補材料的投料量。
本文首次依據瀝青路面裂縫填封和坑槽修補的維修特性和修補機理,全面分析了修補材料中集料與瀝青結合料應具備的性能要求,並對集料與瀝青結合料、修補材料與原有路面材料的相容性進行了深入的分析,同時分析確定了修補材料的級配類型、礦料級配、瀝青用量範圍、組成材料的選用原則及空隙率等。
首次提出了評定瀝青路面裂縫填封和坑槽修補質量好壞最為直接、有效的評價指標,分別對用作裂縫填封材料的熱瀝青、乳化瀝青和改性瀝青及用作坑槽修補材料的熱拌瀝青混合料和冷拌瀝青混合料的性能、適用場合及優缺點進行了比較分析,並按永久性修補要求,歸納提煉了裂縫填封和坑槽修補的工藝步驟,提出了可供瀝青路面養護人員直接採用的工藝方案。
最後,本文創造性地提出了靜力熱壓法修補工藝,並通過對其進行的理論分析和試驗研究,證明了這種修補新工藝的可行性和有效性。

外文摘要

Abstract
This thesis focuses systematic and comprehensive study on distress causes, repair mechanisms, patching materials and maintenance procedures in relation to cracks and potholes, the two most commonly seen distresses in asphalt roads.
A most sophisticated classification is made to the geometric shapes and distress causes of cracks and potholes as well as to their sizes and degrees of damage. A deepened analysis is offered to damage mechanisms typical of cracks and potholes in si...>> 詳細
Abstract
This thesis focuses systematic and comprehensive study on distress causes, repair mechanisms, patching materials and maintenance procedures in relation to cracks and potholes, the two most commonly seen distresses in asphalt roads.
A most sophisticated classification is made to the geometric shapes and distress causes of cracks and potholes as well as to their sizes and degrees of damage. A deepened analysis is offered to damage mechanisms typical of cracks and potholes in six and four categories respectively. And an analytical research is conducted on crack filling and repair mechanisms, on the basis of which specific requirements on maintenance effects are put forward. Moreover, analysis done to the re-distress causes of filled cracks and repaired potholes aims at acquiring when is the proper time to fill cracks in comparison with some other time to fill them up. In order to ensure the density degree and the level degree of repaired potholes, this thesis presents loose pavement coefficient method and material capacity method to control the accurate feel amount of patching materials.
This thesis for the first time bases its analysis on the maintenance characteristics and repair mechanisms for crack filling and pothole repair in asphalt roads. It analyzes the properties of the aggregate and the bituminous binder in patching materials, and further analyzes the compatibilities of the aggregate and the bituminous binder, patching materials and old pavement materials. Furthermore, it determines the grading types, the mineral aggregate gradations, the application rate of asphalt, the principle of selecting component materials and the air void.
This thesis also first presents the most straightforward and the most effective evaluation indexes on the qualities of crack filling and pothole repair, compares and analyzes the properties, the applicable situations, the strong and the weak points of crack filling materials (such as hot asphalt cement, emulsified asphalt, modified asphalt, etc. ) and pothole repair materials (such as hot-mix asphalt mixture and cold-mix asphalt mixture) . On the basis of the permanent demands on repair, this thesis sums up and lists the maintenance steps in crack filling and pothole repair, and advances the procedure designs to be directly adopted by maintenance workers of asphalt roads.
Finally, this thesis creatively presents the new repair procedure of the static hot-compacted method, and proves its feasibility and adaptability through theoretical analysis and experimental researches.

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