钢筋混凝土防护技术分析

列举了几种钢筋混凝土防护技术,并对各自的特点进行分析。在工程实际应用中,应因地制宜,采用普通防护技术与防腐及附加措施相结合的手段,降低外界环境对钢筋混凝土的侵蚀破坏。     

纤维增强SBS改性沥青混合料性能研究

提出采用纤维增强SBS改性沥青AC-13混合料作为加铺层的上面层。通过一系列室内试验研究,介绍了纤维增强SBS改性沥青AC-13混合料的原材料的选择、配合比设计要点,提出适合于旧水泥路面加铺的配合比方案。试验结果表明,纤维增强SBS改性沥青AC-13混合料具有比普通SBS沥青混合料更好的路用性能,能够满足旧水泥路面加铺层的使用要求。     

Scientific research about climate change mitigation in transport: A critical review

This paper seeks to develop a deeper understanding of the research on climate change mitigation in transport. We suggest that work to date has focused on the effects of improvements in transport technologies, changes in the price of transport, physical infrastructure provision, behavioural change and alternative institutional arrangements for governing transport systems. In terms of research methodologies, positivist and quantitative analysis prevails, although there are signs of experimentation with non-positivist epistemologies and participatory methods. These particular engagements with climate change mitigation reflect mutually reinforcing tendencies within and beyond the academic transport community. We first draw on a revised version of Thomas Kuhn’s philosophy of science to explore the path dependencies within transport studies, which are at least partly responsible for the predisposition towards quantitative modelling and technology, pricing and infrastructure oriented interventions in transport systems. We then employ the governmentality perspective to examine how transport academics’ engagements with climate change mitigation depend on and align with more general understandings of climate change in UK society and beyond. The analysis makes clear that ecological modernisation and neo-liberal governmentality more generally provide the context for the current focus on and belief in technological, behaviour change, and especially market-based mitigation strategies. While current research trajectories are important and insightful, we believe that a deeper engagement with theoretical insights from the social sciences will produce richer understandings of transport mitigation in transport and briefly outline some of the contributions thinking on socio-technical transitions and practice theories can make.     

石家庄市居民出行交通碳排放调查分析

交通能源的消耗在城市能源消耗中占有很大的比例,发展低碳交通是交通可持续发展的必然趋势。介绍石家庄市交通现状及交通排放现状,分析石家庄市发展低碳交通的必要性,并针对发展低碳交通提出建议。     

盘海营高速公路SMA路面试验段施工

SMA路面同以往的密级配沥青混凝土路面相比,在抗车辙、防水损害、耐久性、抗滑等指标方面均有显著提高,故此对SMA路面的施工特点、施工工艺行总结分析,对今后该类型路面施工有较好的指导意义及使用价值.     

博尼维沥青混凝土在石黄高速公路中的应用

在沥青混凝土中掺加一定量的短纤维,纤维对沥青混凝土具有改性、加筋和桥联作用,可以大幅度提高沥青混凝土的性能,延长路面的使用寿命。本文介绍了博尼维纤维在国内外的应用情况,通过博尼维沥青混凝土在石黄高速公路中的应用实例,对博尼维纤维的作用机理、使用效果作了说明,并对它进行了效益分析。