会务演讲稿.doc

会务演讲稿 篇一：国际会议演讲稿 Freeze–thaw cycle test and damage mechanics models of alkali-activated slag concrete＇＇＇＇ Thank you for your invitation and warm hospitality. “Freeze–thaw cycle test and damage mechanics models of alkali-activated slag concrete” I would like to thank Professor Cui ,for inviting me to deliver this“Freeze-thaw cycle test and damage mechanics models of alkali-activated slag concrete”. The plentiful studies on a new green binding material—alkali-activated concrete . The effect of freeze-thaw cycles on in concrete was studied by experiment. ， I shall explore a possible agenda for analysis to enable understanding of the alkali-activated slag concrete. “new green binding material—alkali-activated cement” the introduction of Freeze–thaw cycle test and damage mechanics models of alkali-activated slag concrete. Now let#39;s look at the ppt In recent years, there are plentiful studies on a new green binding material—alkali-activated cement, it can be prepared by wastes containing kaolinite (原文introduction第一句) The binding materials with three-dimensional network structure are yield by shrinking and polymerization reaction. With the arriving of low carbon economy time, international governments attach more importance to energy saving, emission reducing and cycled economics.(原文第二段)a genuine low carbon cement.（ppt第3页） –I#39;d like to talk is the materials we can see clear that the Slag used in this study was metallurgy blast furnace slag, was supplied by Jiangxi Building Materials Plant, PR China, its specific surface is 410 m2/kg. chemical compositions of slag are listed in .（ppt第4页） NaOH and Na2SiO3 sodium silicate multiplex solution was used as alkali activator, module of sodium silicate is 3.34. Sand with fineness modulus of 2.78 was used as fine aggregate. Limestone were used as crushed rock aggregate (5–20 mm:20–40 mm = 45:55).(引用原文Materials第二段结论) Mix proportion and specimen preparation , . Mix proportion and specimen preparation.Mix proportion, w