利用粉煤灰-石灰-水泥胶凝体系制备高强砌块  

High strength block preparation with fly ash- lime-cement binding system

作　　者：李纪青[1] 秘洁芳[1] 

机构地区：[1]煤炭科学研究总院北京开采研究所,北京100013

出　　处：《新型建筑材料》2001年第9期11-13,共3页New Building Materials

摘　　要：粉煤灰－石灰－水泥胶凝体系发挥了水泥和石灰各自特点，采用该体系可制备粉煤灰掺量达６０％ ～７０％，抗压强度达 ３５ ＭＰａ，材料成本低于 ６０元／ｍ３的粉煤灰实心砌块。消化是一道十分重要的工序，消化预 先破坏了粉煤灰颗粒的表面结构和网络结构，使粉煤灰具有较多的活性ＳｉＯ２和Ａｌ２Ｏ３阐述了水化反应时，水 泥的晶核作用和它对粉煤灰水化过程的影响。The fly ash - lime - cement binding system gives full play individual charactoristic of ce- ment and lime. The system is used to prepare fly ash solid block with fly ash additive up to 60%- 70%, compression strength up to 35 MPa and materials cost lower than 60 Yuan/m3. Slaking is very important process, which prebreaks surface structure and net structure of fly ash particle, making fly ash have more active SiO2 and Al2O3. The cement crystallite action and its influence on fly ash hydration process during hydration reaction are described

关 键 词：粉煤灰 消化 晶核 水泥 砌块 制备 

分 类 号：TU522.3[建筑科学—建筑技术科学]