臺灣博碩士論文加值系統

瀝青材料的黏彈塑性過去有許多學者進行相關研究，過去之研究透過使用動態模數試驗求取瀝青材料之黏彈性質，而黏塑性質則使用不同應力路徑下之重複荷重潛變試驗對瀝青混凝土試體施加規律性之加載與卸載求得。但過去之研究僅針對高溫條件下施加不同應力探討黏塑性應變與應力之關係，然而不同溫度對於瀝青材料黏塑性質之影響缺乏深入之探討。
因此本研究根據現地狀況設計四種不同應力與四種不同溫度進行相關試驗，本研究首先由動態模數試驗獲得瀝青混凝土之黏彈性質，而黏塑性質則藉由單一重複荷重潛變試驗在四種不同溫度下分別施加四種相異應力來求得各溫度下瀝青混凝土之黏塑性參數，透過這四組黏塑性參數進一步分析溫度對於瀝青材料黏塑性質之影響。
透過分析結果得知，瀝青混凝土之黏彈與黏塑應變皆會隨著溫度升高而增加，其中溫度對於非線性黏彈參數g_1之影響較不顯著，而g_2會隨著溫度增加而上升，此線相說明隨著溫度增加，瀝青混凝土具有較明顯之非線性黏彈性行為。此外，溫度對於黏塑參數亦有顯著之影響，其中硬化參數κ_1、κ_2會隨著溫度升高而下降，參數Γ則會隨著溫度上升而增加。

There are many researchers to investigate the viscoelastic and viscoplastic behavior of asphalt materials. The dynamic modulus test is widely employed to calibrate the viscoelasticity of asphalt materials; while the viscoplastic deformation is measured using repeated creep-recovery test under different loading paths. However, those researches studied the viscoplastic behavior only at high temperature. Lake of studies discuss the effect of temperature on the viscoplastic properties and nonlinear viscoelastic parameters for asphalt materials.
This research conducts dynamic modulus test to calibrate the viscoelastic behavior; while the viscoplastic properties are obtained by analyzing the measurements of repeated creep-recovery test. In order to represent the actual field pavement conditions, this research conducts repeated creep-recovery test at four different stress levels with four different temperatures. The effect of temperature on the nonlinear viscoelasticity and viscoplasticity can be evaluated by the comparison of analyzed parameters at different temperature conditions.
The results show that the viscoelastic and viscoplastic strain increases with increasing temperature. In terms of the effect of temperature on nonlinear viscoelasticity, increasing temperature increases the nonlinearity of viscoelasticity. Moreover, the hardening parameters κ_1 and κ_2 decrease with increasing temperatures; while the viscosity parameter Γ increases with increasing temperature. The results in this research can have significant contributions to develop the nonlinear-viscoelastic-viscoplastic mechanic model coupling with temperature effect.

目錄
摘要 i
Abstract ii
目錄 iv
圖目錄 vi
表目錄 viii
1. 第一章 緒論 1
1.1 研究背景 1
1.2 研究流程 2
2. 第二章 文獻回顧 6
2.1瀝青混凝土之非線性黏彈與黏塑之行為與力學模式 6
2.2 Schapery非線性黏彈性模型 9
2.3 Perzyna黏塑性模型 10
2.4 動態模數試驗 13
2.5 重複荷重潛變試驗 13
3. 第三章 試驗與分析流程 15
3.1 材料性質 15
3.2 試驗 16
3.2.1 試體製作 16
3.2.2 動態模數試驗(Dynamic Modulus Test) 17
3.2.3 重複荷重潛變試驗(Repeated Creep-Recovery test,RCRT) 20
3.3 分析 21
3.3.1 動態模數試驗分析流程 21
3.2.3 重複荷重潛變試驗分析 26
4. 第四章 分析結果與討論 41
4.1動態模數試驗分析結果 41
4.2重複荷重潛變試驗分析結果 42
5. 第五章 結論與建議 56
6. 參考文獻 58

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