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。

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.

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