本文關(guān)鍵詞：基于溫度變化的瀝青混合料壓實(shí)特性研究　出處：《長(zhǎng)沙理工大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 瀝青混合料 壓實(shí)機(jī)具 碾壓工藝 轉(zhuǎn)運(yùn)攤鋪 雙層攤鋪 壓實(shí)特性 溫度變化

【摘要】：壓實(shí)是瀝青路面施工中的關(guān)鍵環(huán)節(jié),壓實(shí)質(zhì)量的好壞直接關(guān)系著施工質(zhì)量的好壞,良好的壓實(shí)效果能大大提高瀝青路面的路用性能及使用壽命。壓實(shí)質(zhì)量與瀝青混合料配合比、壓實(shí)溫度、壓實(shí)機(jī)具組合密切相關(guān),要確保瀝青路面的碾壓質(zhì)量,就必須對(duì)上述影響因素進(jìn)行研究。因此,本文從研究瀝青混合料攤鋪層在不同環(huán)境下表現(xiàn)出的溫度變化情況的角度出發(fā)對(duì)瀝青混合料碾壓工藝進(jìn)行探討。不同類型的瀝青混合料在不同環(huán)境條件下會(huì)表現(xiàn)出不同的溫度變化規(guī)律,基于此,本文中主要選擇了瀝青路面施工中比較常用的AC-13、SMA-13、ATB-30三種瀝青混合料進(jìn)行研究。首先研究分析各型壓路機(jī)壓實(shí)原理及影響壓實(shí)質(zhì)量的各個(gè)參數(shù),分析在三條不同高速公路施工應(yīng)用的壓實(shí)機(jī)具組合方案；其次通過(guò)室內(nèi)模擬,分別對(duì)三種瀝青混合料在氣溫、攤鋪厚度、風(fēng)速等影響因素不同情況下的降溫規(guī)律進(jìn)行檢測(cè),得出不同環(huán)境條件下三種類型瀝青混合料所表現(xiàn)出的降溫速率及攤鋪層內(nèi)外溫差；分析AC-13在施工現(xiàn)場(chǎng)的熱量傳遞情況,得出攤鋪層上空氣、下承層、基層等各部分在各個(gè)時(shí)間點(diǎn)上接收的來(lái)自攤鋪層的熱量情況,通過(guò)“能量守恒定律”得出瀝青混合料攤鋪層溫度隨時(shí)間變化的方程,并同近似環(huán)境條件下的室內(nèi)檢測(cè)結(jié)果進(jìn)行對(duì)比驗(yàn)證；通過(guò)進(jìn)行室內(nèi)馬歇爾實(shí)驗(yàn),得出AC-13、SMA-13在不同擊實(shí)溫度下的體積參數(shù),進(jìn)行有效壓實(shí)時(shí)間的預(yù)估,并根據(jù)拌合樓、攤鋪機(jī)、壓路機(jī)等設(shè)備工作效率,進(jìn)行壓實(shí)機(jī)具的組織；研究分析轉(zhuǎn)運(yùn)攤鋪及雙層攤鋪兩種新工藝對(duì)瀝青混合料攤鋪層溫降規(guī)律及壓實(shí)特性的改善情況,分析其應(yīng)用前景。
[Abstract]:Compaction is a key link in the construction of asphalt pavement, compaction quality directly influences the quality of the construction of good compaction effect can greatly improve the asphalt pavement performance and service life. With the ratio of compaction temperature and compaction quality of Asphalt Mixture Compaction Machine with combination of closely related, to ensure that the asphalt pavement compaction the quality, it is necessary to study the influence of the above factors. Therefore, this paper studies the asphalt mixture paving layer temperature change in different environments show the point of view of Asphalt Mixture Compaction Technology of asphalt mixture. Different types of material under different environmental conditions may exhibit different temperature variation, based on this, this paper choose AC-13, commonly used in asphalt pavement construction of SMA-13, ATB-30 three kinds of asphalt mixture is studied. Firstly, analysis of various types of roller The compaction principle and influence parameters of compaction quality, the analysis in the three different application of highway construction compaction equipment combination scheme; secondly through indoor simulation of three kinds of asphalt mixture in the temperature, paving thickness, cooling regularity of wind speed impact under different conditions were detected, obtained under different environmental conditions of three types the asphalt mixture exhibited by the cooling rate and paving layer temperature difference; analysis of AC-13 at the construction site of the heat transfer, the paving layer on the air, the under layer, each part of the grass-roots reception at each time point from the paving layer of the heat, through the "energy conservation law" that asphalt mixture paving layer temperature change with time and the results of laboratory detection equation, with similar environmental conditions was verified through laboratory experiment; Marshall, the AC-13, SMA-13 The volume parameters under different compaction temperatures, prediction of the effective compaction time, and according to the mixing, paver, roller and other equipment working efficiency, compaction machinery organization; analysis the improvement of paving and double layer paving two kinds of new technology on the asphalt mixture paving layer temperature drop the regularity and compaction characteristics, analyzes its application prospect.

【學(xué)位授予單位】：長(zhǎng)沙理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U414

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 張梅馨;;振蕩壓實(shí)技術(shù)在公路瀝青路面施工中的應(yīng)用[J];科學(xué)之友;2011年14期

，

本文編號(hào)：1389893