畢業(yè)設(shè)計(jì)(論文)說明書范本)(編輯修改稿)
2024-07-19 12:03 本頁面
【文章內(nèi)容簡介】 evaluate the reactivity and its devotion to strength really and directly. (4) The reactivity of CFB ashes is attributed to the amorphous SiO2 and Al2O3, but the SO3 and fCaO of CFB ashes can influence its reactivity and expansion, and there is an optimum content. The higher reactivity can be achieved if the fineness is bigger. (5) The mon method can activate its reactivity, but the result of activation is not ideal in the point of strength. It shows that steam curing and highpressure steam curing is best to activate CFB ashes, especially for highpressure steam curing. (6) The expansion mechanism of CFB ashes is the expansion of the forming of ettringite and the solution and crystallization of ⅡCaSO4. (7) Fineness is beneficial to stabilize the expansion of CFB ash. FA and clinker are advantageous to reduce the expansion and stabilize expansion. The higher alkalinity in liquid phase is, the more expansion.The properties of CFB ashes show it is difficult to utilize CFB ashes in building materials, however reasonable using its properties is possible in building materials. As concrete fine aggregate, it can improve structure of interface between aggregates and cement paste for its reactivity, then can increase the concrete flexural strength. As concrete additive can fully activate the reactivity, and can partly pensate the concrete shrinkage. Because of performance of the fresh concrete and durability, it is better to use it with FA. They both influence performance of the fresh concrete. It can produce CFB ashesfly ash mortar used indoors and CFB ashesfly ashclinker mortar used outdoors with low shrinkage by using the cement and expansion of CFB ashes. CFB ashes mixed with lime, FA or cement, can be used for roadbed mixture in road engineering.Times New Roman五號(hào)Keywords： Circulating Fluidized Bed Combustion, CFB Ashes, Reactivity, Expansion, Utilization in Building Materials.成都紡織高等?？茖W(xué)校畢業(yè)設(shè)計(jì)（論文）說明書 目錄目 錄第1章 前言 1 第1節(jié)
公司管理相關(guān)推薦
鄂ICP備17016276號(hào)-1