The material design of soft environmental high performance cement for the purpose of the increase in the waste treatment quantity.

提高水泥和混合水泥中间隙相或C_3A含量是扩大工业废渣或副产品利用的有效措施。为了设计最佳的水泥基质，有必要弄清水泥的水化和微观结构的形成。在本研究中，提出了既能增加废物处理量又能保证所需性能的水泥材料设计。阐明了铝酸钙水合产物在C_3A或钙铝相功能利用中的高性能应用和重金属固定。当垃圾处理作为水泥掺合物时，CO_2的减少是可能的，并且整理了各种添加剂的水化和织构形成的特点，并整理了如下所示的在材料设计中反映的基本知识。在混合水泥中，等于置换比时，CO_2的降低是可能的。更详细地整理了各类混合水泥的水化和织构形成，整理了如下所示的材料设计中反映的基本数据。1)粒状高炉渣（BFS）在28d时反应比例达到50%左右，此后反应非常缓慢。BFS的细度和碱度对BFS的早期反应率有影响。2)粉煤灰（FA） 7d后才发生反应。在28d ~ 180d期间，FA的反应比与FA中玻璃相的碱度有关。3)添加添加剂后，alite的早期水化速度加快。4)在混合水泥中加入BFS或FA后，白石的反应在后期被延缓。5)石灰石粉（LSP）或慢冷高炉矿渣粉（CFS）的加入均能延缓C_3A的早期反应。在LSP混合水泥中，由于LSP与C_3A的反应，C_3A的水化反应被延缓。当添加CFS时，从CFS中浸出的硫代硫酸盐离子对c_3a的水化有延缓作用，并通过添加BFS和CFS Less，提出了一种新的混合水泥，可以增加废物处理量，改善性能

Increasing the interstitial phase or C_3A contents in cement and blended cement are an effective measure to enlarge the use of industrial waste or by-products. It is necessary to clarify the hydration and the formation of microstructures of cement in order to design the optimum cement matrix. In this study, material design of the cement in which increase of the waste treatment quantity and security of required performance are possible is proposed. High-performance application and heavy metal fixation of the calcium aluminate hydrated products for functionally utilizing the C_3A or Calcium aluminum phase have also been clarified. When waste disposals were utilized as blended cement, the CO_2 reduction is possible, and features in hydration and texture formation of various additives are arranged, and a basic knowledge for reflecting in the material design shown in the following has been arranged. In blended cement, it is equal to the replacement ratio, the CO_2 reduction is possible. How … More ever, hydration and texture formation of various types of blended cements were arranged, and a basic data for reflecting in the material design shown in the following was arranged.1)The reaction ratio of granulated blast furnace slag(BFS) reaches around 50% at 28d, reacted very slowly thereafter. The fineness and the basicity of BFS are influenced on the reaction ratio of BFS at early stage.2)Fly ash(FA) didn't react until 7d. Between 28d and 180d, the reaction ratio of FA is related to the basicity of glass phase in FA.3)The early hydration of alite was accelerated even in the case of additives.4)When BFS or FA is added in Blended cements, the reaction of belite is retarded at late stage.5)The early reaction of C_3A is retarded by adding of limestone powder(LSP) or slowly cooled blast furnace slag powder(CFS). In the case of LSP blended cement, C_3A hydration is retarded for the reaction of LSP and C_3A. When CFS is added, thiosulfate ion which is leached from CFS is retarded on the hydration of C_3A. leached to CFSIn addition, the new blended cement of which increase of the waste treatment quantity and improvement in the performance are possible is being proposed by using of BFS and CFS Less