本文選題：水泥瀝青復(fù)合膠漿 + 動(dòng)態(tài)力學(xué)性能��； 參考：《哈爾濱工業(yè)大學(xué)》2014年碩士論文

【摘要】：水泥瀝青復(fù)合砂漿是由水泥、瀝青、砂及多種外加劑膠結(jié)固化而形成的一種新型有機(jī)無(wú)機(jī)復(fù)合材料，目前主要應(yīng)用于高速鐵路無(wú)砟軌道結(jié)構(gòu)中，起到支撐、調(diào)節(jié)及減振三方面的作用。水泥瀝青復(fù)合膠漿是由水泥和瀝青構(gòu)成的復(fù)合結(jié)合料，其材料性質(zhì)將從根本上決定水泥瀝青復(fù)合砂漿的材料性能。同時(shí)水泥瀝青復(fù)合膠漿在道路養(yǎng)護(hù)及半柔性基層結(jié)構(gòu)中也有著廣泛的應(yīng)用。本文針對(duì)水泥瀝青復(fù)合膠漿的動(dòng)態(tài)力學(xué)性能開(kāi)展研究，結(jié)合粘彈性理論建立其本構(gòu)方程，分析水泥瀝青復(fù)合膠漿力學(xué)性能的影響因素，并研究其力學(xué)性能的細(xì)觀機(jī)理。 基于粘彈性理論建立了描述水泥瀝青復(fù)合膠漿動(dòng)態(tài)力學(xué)性能的本構(gòu)模型，確定了動(dòng)態(tài)力學(xué)性能的實(shí)驗(yàn)研究方法�；谌齾�(shù)固體模型、分?jǐn)?shù)導(dǎo)數(shù)模型、廣義Kelvin模型及2S2P1D模型，推導(dǎo)了描述水泥瀝青復(fù)合膠漿動(dòng)態(tài)力學(xué)性能的本構(gòu)模型，采用復(fù)模量描述其動(dòng)態(tài)力學(xué)行為。利用DMA(Dynamic MaterialAnalysis)動(dòng)態(tài)材料分析方法研究水泥瀝青膠漿的動(dòng)態(tài)力學(xué)性能，確定了相關(guān)的試驗(yàn)條件。 基于CAM模型分析了水泥瀝青復(fù)合膠漿的動(dòng)態(tài)力學(xué)性能，并研究了瀝青水泥質(zhì)量比（A/C比）及溫度對(duì)其動(dòng)態(tài)力學(xué)性能的影響。在動(dòng)態(tài)力學(xué)性能實(shí)驗(yàn)研究的基礎(chǔ)上，結(jié)合時(shí)溫等效原理得到了不同基準(zhǔn)溫度下的主曲線(xiàn)，通過(guò)CAM模型對(duì)主曲線(xiàn)進(jìn)行了回歸分析。結(jié)合CAM模型分析了A/C比及溫度對(duì)水泥瀝青復(fù)合膠漿的復(fù)模量、相位角及溫度敏感性的影響。CAM模型能夠較好的擬合水泥瀝青復(fù)合膠漿的動(dòng)態(tài)力學(xué)性能，水泥瀝青復(fù)合膠漿的力學(xué)性能受溫度、A/C比及加載頻率的影響顯著，表現(xiàn)出較強(qiáng)的粘彈性特性。 基于動(dòng)態(tài)力學(xué)性能實(shí)驗(yàn)，建立了水泥瀝青復(fù)合膠漿的動(dòng)態(tài)本構(gòu)方程，對(duì)比分析了不同本構(gòu)方程的適用性。分別采用三參數(shù)固體模型、廣義Kelvin模型、三元件分導(dǎo)模型及“2S2P1D”等粘彈性本構(gòu)模型對(duì)復(fù)合膠漿儲(chǔ)存模量主曲線(xiàn)進(jìn)行擬合，進(jìn)而得到其本構(gòu)方程。對(duì)比分析了A/C比及溫度對(duì)本構(gòu)模型參數(shù)的影響規(guī)律，，分析了水泥瀝青復(fù)合膠漿的力學(xué)性能隨A/C比及溫度的變化規(guī)律。通過(guò)本構(gòu)方程對(duì)水泥瀝青復(fù)合膠漿損耗模量及相位角進(jìn)行了預(yù)測(cè)，通過(guò)與實(shí)驗(yàn)結(jié)果的對(duì)比，分析了不同本構(gòu)模型的適用性。 在實(shí)驗(yàn)研究的基礎(chǔ)上，建立了水泥瀝青復(fù)合膠漿的細(xì)觀結(jié)構(gòu)模型，分析了其宏觀力學(xué)性能差異的細(xì)觀機(jī)理。采用SEM、MIP及粒度分析實(shí)驗(yàn)分別分析了不同A/C復(fù)合膠漿的表觀形態(tài)、孔結(jié)構(gòu)及水泥水化產(chǎn)物顆粒粒徑，提出了復(fù)合膠漿細(xì)觀結(jié)構(gòu)模型，并將其劃分為水泥基復(fù)合膠漿及瀝青基復(fù)合膠漿兩種類(lèi)型。分析了細(xì)觀結(jié)構(gòu)變化對(duì)復(fù)合膠漿力學(xué)性能的影響，提出了復(fù)合膠漿瀝青膜厚度的計(jì)算方法，結(jié)合體積參數(shù)與原材料性質(zhì)對(duì)水泥瀝青復(fù)合膠漿的模量進(jìn)行了預(yù)測(cè)。
[Abstract]:Cement asphalt composite mortar is a new type of organic-inorganic composite material formed by cement, asphalt, sand and many kinds of admixture cementation. At present, it is mainly used in ballastless track structure of high-speed railway, and plays a supporting role. Regulation and damping of the three aspects of the role. Cement asphalt composite mortar is a composite binder composed of cement and asphalt. Its material properties will fundamentally determine the material performance of cement asphalt composite mortar. At the same time, cement asphalt compound mortar is also widely used in road maintenance and semi-flexible base structure. In this paper, the dynamic mechanical properties of cement asphalt composite mortar are studied. The constitutive equation of cement asphalt composite mortar is established in combination with viscoelastic theory. The influencing factors of cement asphalt composite mortar mechanical properties are analyzed, and the meso-mechanism of its mechanical properties is studied. Based on the viscoelastic theory, a constitutive model describing the dynamic mechanical properties of cement asphalt composite mortar was established, and the experimental research method of dynamic mechanical properties was determined. Based on the three-parameter solid model, fractional derivative model, generalized Kelvin model and 2S2P1D model, the constitutive model for describing the dynamic mechanical properties of cement asphalt composite mortar is derived. The dynamic mechanical behavior of cement asphalt composite mortar is described by complex modulus. The dynamic mechanical properties of cement asphalt mortar were studied by DMA(Dynamic material Analysis method, and the relevant test conditions were determined. Based on CAM model, the dynamic mechanical properties of cement asphalt composite mortar were analyzed, and the effects of mass ratio of asphalt cement to A / C ratio and temperature on its dynamic mechanical properties were studied. Based on the experimental study of dynamic mechanical properties and the principle of time-temperature equivalence, the principal curves at different reference temperatures are obtained, and the main curves are regressed by CAM model. The effects of A / C ratio and temperature on the complex modulus, phase angle and temperature sensitivity of cement asphalt composite mortar were analyzed by using CAM model. The mechanical properties of cement asphalt composite mortar are significantly affected by the ratio of temperature to A / C and the loading frequency, showing strong viscoelastic properties. Based on the dynamic mechanical property experiment, the dynamic constitutive equation of cement asphalt composite mortar was established, and the applicability of different constitutive equation was compared and analyzed. The three parameter solid model, the generalized Kelvin model, the three element fractional conductance model and the "2S2P1D" viscoelastic constitutive model were used to fit the main curve of storage modulus of composite mortar, and the constitutive equation was obtained. The effects of A / C ratio and temperature on the constitutive model parameters were compared and the variation of mechanical properties of cement asphalt composite mortar with A / C ratio and temperature was analyzed. The loss modulus and phase angle of cement asphalt composite mortar were predicted by constitutive equation, and the applicability of different constitutive models was analyzed by comparing with the experimental results. On the basis of experimental study, the meso-structure model of cement asphalt composite mortar was established, and the meso-mechanism of the difference of its macroscopic mechanical properties was analyzed. The apparent morphology, pore structure and particle size of cement hydration products of different A / C composite pastes were analyzed by SEMMAP and particle size analysis experiments, and the meso-structure model of composite paste was proposed. It can be divided into two types: cement-based composite slurry and asphalt-based composite slurry. The influence of microstructure change on the mechanical properties of composite mortar was analyzed. The method of calculating the thickness of composite asphalt film was put forward, and the modulus of cement asphalt composite mortar was predicted by combining volume parameter and raw material property.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：U414

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