【摘要】：露石水泥混凝土路面作為一種新型水泥混凝土路面,不僅擁有傳統(tǒng)混凝土路面強(qiáng)度高、耐久性和穩(wěn)定性等優(yōu)點(diǎn),而且還具有高抗滑、低噪音、防眩光等優(yōu)點(diǎn)。國(guó)外對(duì)露石混凝土路面研究較早并用于實(shí)際,取得良好的效果;我國(guó)雖進(jìn)行理論性探討,但缺乏對(duì)露石混凝土路面的系統(tǒng)研究。因此在實(shí)際應(yīng)用中如何使露石混凝土路面的路用性能得到充分發(fā)揮,具有非常重要的現(xiàn)實(shí)和實(shí)用意義。首先通過(guò)理論分析,結(jié)合室內(nèi)試驗(yàn),選用不同級(jí)配制作露石混凝土試件,在滿足一般混凝土路面技術(shù)規(guī)范要求的基礎(chǔ)上,同時(shí)測(cè)定經(jīng)露石工藝處理后露石混凝土表面的露石度(44~55/cm2)及美觀程度,最終確定室內(nèi)露石混凝土配合比為C0:W0:S0:G0=375Kg/m3:150Kg/m3:758 Kg/m3:1137 Kg/m3,減水劑摻量為0.8%。其次本研究運(yùn)用新型優(yōu)質(zhì)露石劑,完成對(duì)露石混凝土室內(nèi)制作工藝的初步研究。露石劑噴灑量為130±10 g/m2;提出三種可行性刷洗時(shí)間判別方法:劃痕試驗(yàn)法、試沖法和干刷法;刷洗時(shí)間應(yīng)隨著環(huán)境溫度濕度而變化,當(dāng)室內(nèi)溫度在20±2℃、采用軟毛刷時(shí)刷洗時(shí)間為12±1h。最后本文對(duì)露石混凝土路面抗滑性、降噪性和防眩光進(jìn)行理論分析,并通過(guò)大量室內(nèi)試驗(yàn),結(jié)果表明:露石混凝土路面較刻槽水泥混凝土路面聲壓水平降低了7.9dB左右,比瀝青混凝土路面聲壓水平降低3dB,且其路表面紋理對(duì)光的散射能力明顯優(yōu)于其他路面;露石混凝土路面構(gòu)造深度與擺值都較高,具有豐富的表面紋理,實(shí)際路面上會(huì)使車(chē)輛獲得較大的高速行駛安全性;通過(guò)防眩光測(cè)試,露石混凝土路面具有良好的光分散特性,可顯著降低混凝土路面反光能力。
[Abstract]:As a new type of cement concrete pavement, Dew cement concrete pavement not only has the advantages of high strength, durability and stability of the traditional concrete pavement, but also has the advantages of high anti-skid, low noise, anti-glare and so on. The study of exposed concrete pavement abroad is earlier and used in practice, and good results have been obtained. Although theoretical discussion has been carried out in our country, there is no systematic research on exposed concrete pavement. Therefore, how to give full play to the road performance of the exposed concrete pavement in practical application is of great practical and practical significance. First of all, through the theoretical analysis, combined with laboratory tests, different grades are selected to make exposed concrete specimens, on the basis of meeting the requirements of the technical specifications of the general concrete pavement. At the same time, the dew degree (44~55/cm2) and the aesthetic degree of the exposed concrete surface were determined, and the mixture ratio of indoor exposed concrete was finally determined to be C0:W0:S0:G0=375Kg/m3:150Kg/m3:758 Kg/m3:1137 Kg/m3,. The content of water reducing agent is 0.8%. Secondly, the new high-quality dew stone agent is used to finish the preliminary research on indoor manufacture technology of dew stone concrete. The spraying amount of detritus agent is 130 鹵10 g / m ~ 2. Three feasible methods for distinguishing scrubbing time are put forward: scratch test method, test stroke method and dry brush method. The washing time should vary with the ambient temperature and humidity. When the indoor temperature is 20 鹵2 鈩，

本文編號(hào)：2447905