【摘要】：公路交通的飛速發(fā)展促使了新材料、新工藝在道路建設(shè)上的應(yīng)用,橡膠顆粒瀝青混合料作為一種筑路材料比傳統(tǒng)的瀝青混合料有著更為優(yōu)良的路用性能,同時(shí)將廢舊輪胎加工成橡膠顆粒摻加到瀝青混合料中也可以保護(hù)環(huán)境、節(jié)約資源。 但是將橡膠顆粒加入到混合料中后會(huì)改變?cè)械牡V料組成結(jié)構(gòu),傳統(tǒng)的瀝青混合料施工工藝已不再適用于橡膠顆粒瀝青混合料,在現(xiàn)場(chǎng)鋪筑實(shí)際路面時(shí),也有必要在傳統(tǒng)瀝青路面質(zhì)量控制的基礎(chǔ)之上探索一套新的更加有效的適用于橡膠顆粒瀝青路面的質(zhì)量控制方法。 本文在結(jié)合國(guó)內(nèi)外相關(guān)研究成果的基礎(chǔ)上,運(yùn)用正交實(shí)驗(yàn)設(shè)計(jì),分析了拌合時(shí)間、拌合溫度、成型溫度以及成型擊實(shí)次數(shù)等因素對(duì)橡膠顆粒瀝青混合料性能的影響,并得出了一套較為合理的室內(nèi)拌合成型工藝。結(jié)合試驗(yàn)路鋪筑,形成了施工材料以及施工關(guān)鍵工序的質(zhì)量控制方法。最終對(duì)鋪筑完成的路面進(jìn)行質(zhì)量檢測(cè),并取得了良好的效果,實(shí)現(xiàn)了現(xiàn)場(chǎng)對(duì)橡膠顆粒瀝青路面的施工質(zhì)量進(jìn)行控制的目的。本文所取得的主要研究成果如下： 1、就骨架密實(shí)型橡膠顆粒瀝青混合料而言,橡膠顆粒充當(dāng)集料的作用以外摻的方式加入到混合料中,并按橡膠顆粒的體積比例進(jìn)行配合比設(shè)計(jì)是合理的,對(duì)其各項(xiàng)路用性能進(jìn)行檢驗(yàn),檢驗(yàn)結(jié)果均符合國(guó)家規(guī)范的要求。 2、本文采用正交試驗(yàn)對(duì)骨架密實(shí)型橡膠顆粒瀝青混合料的室內(nèi)成型工藝進(jìn)行了研究,并確定出了各種因素對(duì)拌合成型效果的影響程度的大小。最終通過試驗(yàn)確定出的最佳成型工藝為：石料和橡膠的拌和時(shí)間是40s,瀝青的拌和時(shí)間的是85s,瀝青的拌和溫度是180℃,擊實(shí)次數(shù)是80次,采用二次成型的方法,第一次的成型溫度是170℃,第二次的成型溫度是80℃。 3、結(jié)合現(xiàn)場(chǎng)試驗(yàn)路段鋪筑的情況,探索出了一套可以用于骨架密實(shí)型橡膠顆粒瀝青路面進(jìn)行施工質(zhì)量控制的措施,并通過對(duì)最終鋪筑路面進(jìn)行質(zhì)量檢測(cè)加以驗(yàn)證,按照規(guī)范要求對(duì)施工原材料進(jìn)行質(zhì)量檢查驗(yàn)收,在施工過程中對(duì)各個(gè)施工環(huán)節(jié)的質(zhì)量加以控制,可以提高橡膠顆粒瀝青路面的施工質(zhì)量。
[Abstract]:The rapid development of highway traffic has promoted the application of new materials and new technology in road construction. Rubber particle asphalt mixture, as a kind of road construction material, has better road performance than the traditional asphalt mixture. At the same time, the processing of waste tires into rubber particles can also protect the environment and save resources. However, when rubber particles are added to the mixture, the original mineral composition structure will be changed. The traditional asphalt mixture construction technology is no longer suitable for rubber particle asphalt mixture. When the actual pavement is laid on the spot, It is also necessary to explore a new and more effective quality control method for rubber particle asphalt pavement on the basis of traditional asphalt pavement quality control. In this paper, based on the relevant research results at home and abroad, the effects of mixing time, mixing temperature, molding temperature and compaction times on the properties of rubber particle asphalt mixture were analyzed by orthogonal experimental design. A set of reasonable indoor mixing molding technology is obtained. Combined with the paving of the test road, the quality control method of the construction material and the key process of the construction is formed. Finally, the quality of the paving pavement is tested, and good results are obtained, and the purpose of controlling the construction quality of rubber particle asphalt pavement is realized. The main research results of this paper are as follows: 1. As far as the skeleton dense rubber particle asphalt mixture is concerned, rubber particles are added to the mixture in addition to the effect of aggregate. It is reasonable to design the mixture according to the volume proportion of rubber particles, and the test results are in accordance with the requirements of the national code. 2. In this paper, the indoor molding process of skeleton dense rubber particle asphalt mixture was studied by orthogonal test, and the influence of various factors on the mixing effect was determined. Finally, the optimum molding process is determined as follows: the mixing time of stone and rubber is 40s, the mixing time of asphalt is 85s, the mixing temperature of asphalt is 180 鈩，

本文編號(hào)：2487562