實驗室內評估乳化瀝青及水泥含量於冷拌再生乳化瀝青混凝土成效影響

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陳約存(Yueh-Tsun Chen) 查詢紙本館藏

畢業系所

土木工程學系

論文名稱

實驗室內評估乳化瀝青及水泥含量於冷拌再生乳化瀝青混凝土成效影響
(The performance influence of cold mix recycled asphalt mixture with various cement content and emulsion content in the laboratory.)

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摘要(中)

冷拌再生乳化瀝青混凝土(Cold Recycled Mixture with Asphalt Emulsion, CRME)為了提升其強度及抗水分侵害能力會添加水泥，但添加過多可能會導致其發生脆性行為，使瀝青混凝土鋪面產生反射裂縫。本研究目的為透過多種成效試驗探討不同乳化瀝青及水泥含量對CRME之影響，及在不發生脆性行為下最小殘餘瀝青與水泥比值，首先參考營建署相關規範進行配合設計，並於其中分別調整乳化瀝青及水泥含量進行試驗，使用迴旋壓實機(Superpave Gyratory Compactor, SGC)製作試體並取得壓實曲線，試體經養治完後進行成效試驗，最後進行成效分析，探討實驗室內不同乳化瀝青及水泥含量對於CRME之成效影響並提出建議最小殘餘瀝青與水泥比。透過成效試驗結果進行變異數分析得知工作性與壓實能力、間接張力強度及回彈模數皆主要受到水泥含量影響，而靜態潛變及抗開裂指數(Cracking Tolerance Index, CTIndex)同時受到乳化瀝青含量及水泥含量兩者影響。綜合不同水泥含量對間接張力強度影響、回彈模數及CTIndex影響，CRME之水泥添加量不能≧ 1%，因水泥含量≧1 %後對於強度的提升無顯著差異且抗開裂能力開始劣化，且乳化瀝青含量需≧3 %，不同水泥含量之間接張力強度才符合規範要求，故根據研究配置建議CRME之殘餘瀝青與水泥比值不能低於1.5。

摘要(英)

Cement is used to Cold Recycled Mixture with Asphalt Emulsion (CRME) to increase its strength and moisture resistance. However, if there is too much cement used, the pavement may become brittle and develop reflective cracking. The objective of this research is to look into the impacts of various cement content and asphalt emulsion content on CRME through various performance tests to recommend the minimum residual asphalt-to-cement ratio that will not lead to brittle behavior. In the beginning, the mixture is designed in accordance with Taiwan PCC Spec. No.02727 "Cold Recycled Asphalt Mixture." Tests are carried out by varying the contents of the asphalt emulsion and cement after choosing the optimum mix proportion. The Superpave Gyratory Compactor (SGC) is used to make the specimens and get the compaction curves. After curing, the specimens undergo performance tests and analysis to estimate the impacts of various cement and asphalt emulsion contents on CRME performance in the laboratory and provide recommendations for the the minimum residual asphalt-to-cement ratio. According to the test results and analysis of variance, the main factor affecting CRME′s workability, compactability, indirect tensile strength (ITS), and resilient modulus (MR) is its content of cement, whereas both the cement content and the asphalt emulsion content have an impact on static creep and the cracking tolerance index (CTIndex). The content of cement in CRME should be below 1.0 % after considering the effects of various cement contents on the ITS, MR, and CTIndex. The strength doesn’t enhance significantly, and the cracking resistance starts to decline. The asphalt emulsion content should be greater than 3.0 % so that ITS with different cement contents can fulfill the specifications. Additionally, it is recommended that the residual asphalt-to-cement ratio in CRME should not be beneath 1.5 based on the test setting of the research.

關鍵字(中)

★ 冷拌再生乳化瀝青混凝土
★ 乳化瀝青
★ 水泥
★ 成效試驗

關鍵字(英)

★ Cold Recycled Mixture with Emulsion Asphalt (CRME)
★ Emulsion
★ Cement
★ Performance Tests

論文目次

摘要 I
ABSTRACT III
誌謝 V
目錄 VII
圖目錄 IX
表目錄 XIII
第一章、緒論 1
1-1研究背景 1
1-2研究動機 2
1-3研究目的 3
1-4研究流程 4
第二章、文獻回顧 7
2-1 冷拌再生瀝青混凝土介紹 7
2-2實驗室內冷拌再生瀝青混凝土之壓實能力評估 10
2-3影響冷拌再生乳化瀝青混凝土成效之因子探討 13
2-3-1乳化瀝青添加量對冷拌再生乳化瀝青混凝土成效之影響 14
2-3-2水泥添加量對冷拌再生乳化瀝青混凝土成效之影響 17
2-3-3乳化瀝青添加量及水泥添加量對於冷拌再生乳化瀝青混凝土成效之影響 21
2-4反射裂縫影響因子 29
2-5文獻回顧小節 31
第三章、研究方法 33
3-1研究規劃 33
3-2材料相關基本性質試驗 36
3-2-1刨除料相關基本性質試驗 36
3-2-2乳化瀝青相關基本性質試驗 38
3-3冷拌再生乳化瀝青混凝土配合設計 41
3-3-1冷拌再生乳化瀝青混凝土配合設計流程 41
3-3-2冷拌再生乳化瀝青混凝土配合設計試驗項目 43
3-4不同乳化瀝青及水泥含量之CRME成效試驗 44
3-4-1工作性與壓實能力之評估 44
3-4-2回彈模數試驗 45
3-4-3靜態潛變試驗 46
3-4-4 Indirect Tensile Asphalt Cracking Test (IDEAL-CT) 47
3-4-5二因子變異數分析 49
第四章、配合設計結果 51
4-1材料及乳化瀝青試驗結果 51
4-1-1粒料試驗結果 51
4-1-2乳化瀝青試驗結果 53
4-2 冷拌再生乳化瀝青混凝土配合設計結果 54
4-2-1本研究選用之級配 54
4-2-2本研究配比設計結果 56
4-2-3本研究配合設計綜整結果 58
第五章、不同乳化瀝青含量及水泥含量之 CRME成效試驗結果 59
5-1工作性與壓實能力之影響 59
5-1-1 First-stage Compaction Energy Index(FCEI)計算 60
5-1-2 Second-stage Compaction Energy Index(SCEI)計算 62
5-1-3 Third-stage Compaction Energy Index(TCEI)計算 64
5-1-4 Kid計算 66
5-1-5 Kdm計算 70
5-1-6壓實性與工作性小結 72
5-2間接張力強度之影響 73
5-3浸水殘餘強度之影響 75
5-4靜態潛變之影響 76
5-5勁度分析 79
5-5-1回彈模數之影響 79
5-5-2 CTIndex之影響 82
5-5-3勁度分析結果 85
5-5-4勁度分析小結 89
第六章、結論與建議 91
6-1結論 91
6-2建議 92
參考文獻 93

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指導教授

陳世晃(Shih-Huang Chen)

審核日期

2023-7-27

推文