《英文学术report中introduction的写作范例.ppt

Conditioned MSWI ash-slag-mix as a replacement for cement in cement mortar Background Research Question Purpose * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Basic knowledge MSWI 城市固体垃圾焚烧 ash-slag-mix 灰与炉渣的混合物 cement mortar 水泥砂浆 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Part One Background Part Two Literature Review Part Three Research Question Part Four Purpose Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Most municipal solid waste (MSW) is incinerated in Taiwan. Municipal solid waste incinerators (MSWIs) in Taiwan produce about 250,000 tons of fly-ash and scrubber-ash annually. The resulting ash waste contains hazardous heavy metals. A chelating agent and 20 wt% cement are added to the ash, which is then solidified for safe disposal in landfill sites. However, leaching of heavy metals is still possible in the long term. 　　　　　　　　　　　　　　　　　　 Gneral Area Subarea Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Literature Review To reuse fly-ash, Al-Rawas et al. investigated the effects of various replacement ratios of sand or cement in a cement mortar using MSWI fly-ash . Water-permeable pavement bricks can be made from the molten slag of MSWI fly-ash(Nishigaki,2000) . Partial substitution of cement in mortar by using molten and pulverized slag has recently been of interest due to the ease with which fly-ash can be vitri?ed . Author Prominent Information Prominent General to specific Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. However, it is extremely difficult to vitrify MSWI scrubber-ash due