摘要：
Bio-oil is widely used to prepare bio-asphalt, which has attracted more and more attention. However, bio-asphalt performance is different for bio-oil is various, so it is challenging to have a unified standard evaluation. In order to investigate the characteristics of various kinds of bio-asphalt, this paper used five bio-oils (vegetable oil, soybean oil, castor oil, straw oil, waste oil) to modify the neat asphalt. Meanwhile, the rock asphalt was selected to modify the bio-asphalt, and its content is 5% by weight of the neat asphalt. By testing the rheological performance of rock asphalt modified bio-asphalt, the modification effects of different bio-oils were compared, and the advantages and disadvantages of different bio-oils were analyzed and compared. Finally, through Fourier transform infrared spectroscopy (FTIR) test and scanning electron microscope (SEM), the mechanism of bio-oil and rock asphalt composite modified neat asphalt was studied. The test results show that the rheological properties of different rock asphalt modified bio-asphalt are intensely different. Also, the infrared spectra of bio-oils from different sources are extremely different. There is no obvious correspondence between the infrared spectra of bio-oils and the macro performance of bio-asphalts. Besides, neat asphalt, bio-oil, and rock asphalt have favorable mixing compatibility. This paper determines the applied situations of various bio-oil and evaluates the modification effect of different types of bio-oil on neat asphalt. At the same time, this work reveals the modification mechanism of rock asphalt modified bio-asphalt, which provides a basis for future bio-asphalt application.
摘要：
functions, together with detailed analysis of leading models of emotional intelligence. Chapter begins by explicating three leading models of optimism and then focuses on empirical findings related to optimism and hope. Chapter 6 first introduces goal theories, centering around the relationship between goals and wellbeing, then reviews key characteristics of goals and two models of change: the Transitions Model and the Transtheoretical Model. Chapters 7-10 explore briefly about self-regulation and grit, flow, meaning in life, character strengths and virtues respectively, tapping into their concepts, benefits and upshots. Chapter 11 examines in great length the construct of positive relationships, exploring ingredients that make up beneficial high-quality relationships through a thorough review of theories and empirical findings. Besides, their impact on both physical and psychological wellbeing are discussed. To overcome the misconception that positive psychology does not address negative emotions, Chapter 12 unpacks four interrelated concepts: stress, coping, resilience and posttraumatic growth. After analyzing how stress occurs and the consequence of stress, the author offers a summary of coping strategies, reviews predictors and outcomes of resilience, and ends with an exploration about models, outcomes and facilitators of posttraumatic growth. Chapter 13 dedicates itself to the applied area of positive psychology and presents an overview of theoretical and empirical st...
