绿色高强优质轻集料的研究-材料学专业毕业论文.docxVIP

武汉耻1．人学硕I：学位论文Abstract 武汉耻1．人学硕I：学位论文 Abstract With development substructure building countrN amount consuming is increasing continuously and the exploitation of mine results in the serious damage of the natural environment the time，the utilization fly ash， especially the low quality is still low and sludge still treated with well，which in environmental pollution．This paper studies prepares high strength light aggregate that take place of the aggregate gravel aggregate with the material of fly ashes and sludge sludge．This make of ash and sludge well but also very important meaning for saving energy ensuring the sustainable ideal structural model of high lightweight aggregate in this paper combined the achievement received in the research work high performance lightweight concrete．Regarding the ideal model guidelines，we the dynamic expanding in stage for the main fact，in order form through holes，reduce unit weightl Relying mainly expanding in static behavior later cram and feed through holes through the liquid phase material，adjust optimize the of hole，we successfully improved the and reduced the rate．Through two—combined expanding model organically,the ideal of lightweight aggregate formed．Cooperate with the solid burning technology and mullite crystallizing technology with optimizing materials and sintering system，the hole and composites of lightweight aggregate adjust，and its problem strength high absorption solved． On the basis of analyzing component，physical elemental analyzing，the range of of fly ash sludge，this research experimented and studied proportion of the materials，trod asc,,wtalned opttml!,m．1 proportion．By adopttng SEM，XRD，DTA and TG,combining the result of macro performance，the law of impact coursed by the of lightweight is which suggests the optimized proportion of fly sludge 4：6．The industry has produced the high quality light aggregate whose strength is 7．4MPa and the absorptive is 8．5％．which is standard perfect national GB／T17431．1—1998． A eva