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- Keywords expansion admixture;concrete;ettringite;high Ca fly ash;industrial offal gypsum; 关键词膨胀剂;混凝土;钙矾石;高钙粉煤灰;废石膏;
- high Ca fly ash 高钙粉煤友
- Durability Properties of High Volume Fly Ash Con-cretes. 结构混凝土中粉煤灰掺入量是30%25-70%25，但没有路用性能的分析。
- Fly ash can be take as high quality admixture of concrete. 处理后的粉煤灰可作为优质的混凝土掺合料。
- High hydration temperature advances the pozzolanic reaction of fly ash. 高温水化条件下粉煤灰的火山灰反应提前发生。
- Reuse of Bottom and Fly Ash and. 火力发电厂灰渣废水二次处理再利用。
- The results showthat fly ash will reacte with Ca(OH) 2 and high Ca/Si ratio C-S-H gel produced by the hydration of clinker,and so that to produce the C-S-H gel with a lower molar ratio of CaO/SiO. And such C-S-H gel can bind more Na + and K + ions. 结果显示 ,粉煤灰的掺入对ASR有较好的抑制效果。 粉煤灰主要是通过与Ca(OH)2 及水泥熟料水化生成的高Ca/Si比的C -S-H凝胶发生二次火山灰反应 ,生成大量低Ca/Si比的C -S-H凝胶 ,提高了对孔溶液中Na+ 和K+ 的吸收 ,从而起到抑制ASR的作用
- Effect of fly ash on the workability, strength and hydration heat of high belite cement and concrete. 粉煤灰对高贝利特水泥和混凝土的工作性、强度及水化热的影响。
- A kind of phosphate-solubilizing bacteria(PSB)were isolated from coal fly ash and cropping soil respectively,named CA and SL strains. 从粉煤灰和农田土壤中分离筛选出2株解磷细菌CA和SL,以紫花苜蓿为供试植物,通过盆栽试验研究接种解磷细菌对粉煤灰基质的改良作用。
- Fly ash effeCts"of fly ash added calcium is analyzed qualitatively. 本文从定性、定量两方面分析了增钙灰的“粉煤灰效应”。
- The addition of fly ash can further reduce the hydration heat of high belite cement. 粉煤灰可进一步降低高贝利特水泥本已较低的水化热。
- The cordierite glass-ceramics were prepared using high alumina fly ash as the main raw material. 以高铝粉煤灰为主要原料,制备了堇青石微晶玻璃。
- Using Ca(OH)2 as the bridge the fly ash and cement reaction in filling slurry to build the model of hydration reaction kinetics matchs case the true reaction. 以Ca(OH)_2作为胶结充填砂浆中粉煤灰火山灰反应和水泥熟料水化反应的桥梁建立的水化反应动力学模型,基本上与浆体实际水化反应过程相符;
- The experimental results showed that C S H gel and Aft were the main hydrated products in the fly ash cements for high road. 实验结果表明 ,公路粉煤灰水泥的主要水化产物为C -S -H凝胶、钙矾石及少量的Ca(OH) 2 。
- A new method for preparing high efficient coagulant of polysilicate aluminum ferrite (PSAF) from fly ash and pyrite slag was studied. 研究了以粉煤灰和硫铁矿烧渣为原料制备高效混凝剂聚硅酸铁铝(PSAF)的方法,确定了合理的生产工艺和操作条件。
- The most effective ingredients for making up high performance concrete are super-plasticizing agent,fly ash or slag powder,silicon powder. 配制高性能混凝土最有效的几种组分是超塑化剂、粉煤灰或矿渣、硅粉。
- However, the high carbon content and poor hydraulic activity of the fly ash make it necessary to develop some relevant tec... 而飞灰含炭量高,以及水硬活性不理想,继而开发了飞灰造粒回燃、飞灰直接返送和水化后返送脱硫,用作水泥的原料和土壤改良剂等。
- The hydrated products and pore size distribution of high road fly ash cements were studied by means of XRD,DTA,Mercury porosimeter,etc. 采用X-射线衍射、差热分析、微量热计及压汞测孔仪对公路粉煤灰水泥的水化产物、水化放热曲线、孔尺寸分布进行了研究。
- Fly ash, lees and sludge are three representational castoffs from industry. 粉煤灰、糟、泥是是工业三废中具代表性的三种废弃物。
- CSH gel with low water content forms in the pozzolanic reaction of fly ash. 粉煤灰的火山灰反应生成的也是含水率较低的CSH凝胶。
