研究了ASR-硫酸盐侵蚀双重作用下混凝土的损伤特点.碱骨料试件在不同浓度硫酸盐溶液中60℃恒温养护60周,定期测试混凝土试件膨胀值和动弹性模量.用SEM观察界面过渡区的形貌和组成.结果表明:试件膨胀值随硫酸盐溶液浓度增加依次增大,试件前期动弹性模量急剧下降,膨胀率上升缓慢;但后期,试件动弹性模量则下降极为缓慢,膨胀率曲线上升明显;高浓度硫酸盐侵蚀条件下,界面过渡区的AFt晶体明显增多,结构疏松.

Basing on the basic preparation principle of reactive powder concrete, through mixing the new active component of slag, this thesis aims to confect new-type cement-based material with super high performance. As illustrated from the experiments of resistance to chlorine ion permeability, this type of concrete is with extremely compact structure and higher resistance to chlorine ion permeability compared with other cement-based materials. Silica fume presents the most important promotion effect on its resistance to chlorine ion permeability. Steel fiber and standard sand also help to enhance its impermeability. Through the analysis and the research on microstructure realized by X-ray Diffraction, mercury penetration experiment and SEM, all these views have been proved.

光伏建筑一体化将太阳能光伏发电同建筑结合起来,既美观又环保,将是21世纪城市建筑节能的市场热点。其应用形式主要有光伏屋顶、光伏幕墙、光伏遮阳板等。目前国际上光伏建筑一体化的发展已经进入商业化运作阶段,而我国在这方面还比较落后,需要政府和相关研究部门作出更大的努力。太阳能光伏建筑一体化必将具有广阔的发展前景。

光伏建筑一体化将太阳能光伏发电同建筑结合起来,既美观又环保,将是21世纪城市建筑节能的市场热点.其应用形式主要有光伏屋顶、光伏幕墙、光伏遮阳板等.目前国际上光伏建筑一体化的发展已经进入商业化运作阶段,而我国在这方面还比较落后,需要政府和相关研究部门作出更大的努力.太阳能光伏建筑一体化必将具有广阔的发展前景.