本文選題：預防性養(yǎng)護 + 同步薄層罩面�。� 參考：《長沙理工大學》2014年碩士論文

【摘要】：隨著瀝青路面各項性能指標的逐步衰減,為了保持其優(yōu)良的服務性能,在正確的時機采用合適的養(yǎng)護方式對其進行養(yǎng)護維修得到越來越多的關注,因此瀝青路面預防性養(yǎng)護技術成為道路工程界的研究熱點之一。為此,本文依托佛山一環(huán)瀝青路面預防性養(yǎng)護工程,開展同步薄層罩面預防性養(yǎng)護技術研究。(1)通過佛山一環(huán)舊瀝青路面病害調(diào)查表明,舊路面整體狀況良好,適合進行預防性養(yǎng)護。據(jù)此通過對國內(nèi)外常用的養(yǎng)護措施的使用效果、施工工藝及經(jīng)濟性的對比分析顯示,同步薄層罩面較適合于佛山一環(huán)瀝青路面的預防性養(yǎng)護。為此在參考NovaChip的基礎上提出了同步薄層罩面瀝青混合料的級配和設計方案。(2)通過原材料性能檢驗表明,高粘改性瀝青、聚合物改性乳化瀝青和各檔集料的性能均符合設計要求,可用于同步薄層罩面。同時,采用馬歇爾設計法,并進行路用性能檢驗,確定了同步薄層罩面瀝青混合料的目標配合比、生產(chǎn)配合比和最佳油石比。(3)根據(jù)舊瀝青路面病害類型和輕重程度的實際情況,提出了針對性的處治工序和工藝。通過試驗段的施工,確定了同步薄層罩面瀝青混合料的拌和、運輸、攤鋪、碾壓、接縫處理以及開放交通等施工工藝。同時,根據(jù)試驗段施工情況,提出了施工注意事項、交工驗收標準和外觀評定標準。(4)通過對試驗段應用效果檢測,同步薄層罩面聚合物改性乳化瀝青灑布量、路面構(gòu)造深度、摩擦系數(shù)、滲水系數(shù)、鋪筑厚度和壓實度均符合設計要求,說明提出的同步薄層罩面施工工藝合理,路面抗滑性能和排水性能優(yōu)良。(5)通過對國內(nèi)常用的薄層罩面混合料類型在經(jīng)濟、技術和性能上的對比,結(jié)果表明,同步薄層罩面比SMA-13和AC-13具有施工工藝簡單、對交通影響小、造價低、使用性能優(yōu)越和社會效益高的優(yōu)點,更適合于預防性養(yǎng)護工程。總之,采用同步薄層罩面進行高等級公路預防性養(yǎng)護可以有效延長路面的使用壽命,產(chǎn)生較大的經(jīng)濟社會效益,因此本文的研究成果可供其他同類工程參考。
[Abstract]:With the gradual attenuation of various performance indexes of asphalt pavement, in order to maintain its excellent service performance, more and more attention has been paid to the maintenance and repair of asphalt pavement with proper maintenance methods at the right time. Therefore, preventive maintenance technology of asphalt pavement has become one of the research hotspots in road engineering field. Therefore, based on the preventive maintenance project of Foshan first ring asphalt pavement, this paper studies the preventive maintenance technology of synchronous thin-layer overlay. (1) through the investigation of the disease of the old asphalt pavement in Foshan, it is shown that the whole condition of the old pavement is good. Suitable for preventive maintenance. Based on the comparison and analysis of the application effect, construction technology and economy of the common maintenance measures at home and abroad, it is shown that the synchronous thin layer covering is more suitable for the preventive maintenance of Foshan first ring asphalt pavement. Based on the reference of NovaChip, the gradation and design scheme of synchronous thin-layer overlay asphalt mixture is put forward. (2) the performance of high viscosity modified asphalt, polymer modified emulsified asphalt and each grade aggregate meets the design requirements through the performance test of raw materials. It can be used to synchronize thin layer covering. At the same time, Marshall design method and road performance test are used to determine the target mix ratio, production mix ratio and optimum oil stone ratio of the asphalt mixture. (3) according to the actual condition of the disease type and severity of the old asphalt pavement, The treatment procedure and process are put forward. Through the construction of the test section, the construction techniques such as mixing, transportation, spreading, rolling, joint treatment and open traffic of the asphalt mixture with synchronous thin-layer covering are determined. At the same time, according to the construction situation of the test section, the construction precautions, the acceptance standard and the appearance evaluation standard are put forward. (4) by testing the application effect of the test section, the amount of asphalt sprayed with polymer modified emulsified asphalt and the depth of pavement structure are obtained. The friction coefficient, water permeability coefficient, laying thickness and compaction degree all meet the design requirements, which shows that the construction technology of synchronous thin layer covering is reasonable. The pavement skid resistance and drainage performance are excellent. (5) by comparing the economic, technical and performance of the common thin-layer overlay mixture in China, the results show that the synchronous thin-layer overlay is simpler than SMA-13 and AC-13 in construction technology and has less influence on traffic. The advantages of low cost, superior performance and high social benefit are more suitable for preventive maintenance engineering. In short, the use of synchronous thin-layer covering for preventive maintenance of high-grade highway can effectively prolong the service life of pavement and produce greater economic and social benefits. Therefore, the research results of this paper can be used as reference for other similar projects.
【學位授予單位】：長沙理工大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U418.6
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本文編號：2090337