火山灰反应

结果表明：随粉煤灰掺量增加，二次火山灰反应生成大量低n（Ca）/n（Si）比的C-S-H凝胶。

The results show that secondary pozzolanic reaction produced more C-S-H with low Ca / Si molar ratio .

试验结果表明：粉煤灰的火山灰反应程度极其有限，极限火山灰反应率不大于20%；

Results show that the degree of pozzolanic reaction of fly ash is limited . Its terminal pozzolanic reaction ratio is less than 20 % .

估算了粉煤灰火山灰反应所需的最小水泥用量[或Ca（OH）2量]；

The smallest quantity of cement [ or Ca ( OH ) _2 ] that 's needed for the pozzolanic reaction of fly ash was estimated .

结果表明：所采用燃煤灰渣的活性SiO2，Al2O3火山灰反应均符合一级反应动力学模型；

The results show that the pozzolanic reaction of active SiO2 and Al2O3 con-forms to the Class I model of kinetics .

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；

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 .

粉煤灰的火山灰反应生成的也是含水率较低的CSH凝胶。

CSH gel with low water content forms in the pozzolanic reaction of fly ash .

该法不但可以反映出活性SiO2、Al2O3火山灰反应能力差异，还可得到火山灰反应速率常数和表观活化能等有用的动力学参数。

The new method can differentiate the pozzolanic reactivity of active SiO2 and Al2O3 , and obtain the useful parameters , such as reaction rate constant and activation energy .

早强剂对煅烧煤矸石火山灰反应的激发作用

Effect of Early-strength Admixture on Pozzolanic Reaction of Calcined Coal Gangue

粉煤灰火山灰反应残渣的形貌及组成

Morphology and composition of fly ash residues of pozzolanic reaction

固硫灰渣的微观结构与火山灰反应特性

Microstructure and pozzolanic reactivity of fluidized bed combustion ashes

Ⅰ级粉煤灰火山灰反应性研究

Study on the Reactivity of Grade ⅰ Fly-ash

粉煤灰火山灰反应性及其反应动力学

Pozzolanic reactivity and reaction kinetics of fly ash

激发剂作用下粉煤灰火山灰反应特征的研究

A Study on the Characteristics of the Pozzolanic Reaction of Fly Ash with the Exciter

粉煤灰与氢氧化钙火山灰反应制备烟气脱硫剂的动力学分析

Kinetics of Pozzolanic Reaction for Preparation of Flue Gas Desulfurizer from Fly Ash and Calcium Hydroxide

研究了经电收尘及分选的Ⅰ级粉煤灰火山灰反应性，探讨了其对水泥基材料强度的影响。

The chemical reactivity of grade ⅰ fly ash and its influence on strength of cement matrix were studied .

用化学反应动力学方法研究固硫灰渣的火山灰反应特性，并与粉煤灰进行对比。

The pozzolanic reactivity of FBC and PC ashes was investigated based on the kinetics of the pozzolanic reaction .

研究结果表明，所得的动力学表达式的计算值与实验结果吻合较好，反映了粉煤灰与氢氧化钙的火山灰反应的规律。

Kinetics characteristics and its expressions were ( obtained ) . Comparison of calculated values with experiment values showed that kinetics expression precision was good .

本文阐述了粉煤灰的组分、结构及物理性质，因为它们对粉煤灰的火山灰反应产生有益的作用。

This paper describes the constituent , the structure and the physical characteristics of fly ash which might have favourable influence on " Pozzolanic reaction " .

其对水泥基材料强度的增强效果源自火山灰反应为主的化学效应和以颗粒填充为主的物理效应。

The enhancement effect on cement material arises from chemical effect which is predominated by pozzolanic effect and physical effect which is predominated by filling effect .

固硫灰渣的火山灰反应速率常数明显高于粉煤灰的，而表观活化能相反。

The reaction rate constant of the FBC ashes is higher than that of the PC ashes , while the activation energy is just the opposite .

采用扫描电镜和电子探针等分析手段研究了粉煤灰火山灰反应残渣的形貌和化学组成。

Morphology and chemical composition of fly ash residues of pozzolanic reaction were investigated by scanning electron microscopy ( SEM ) and electron probe microanalysis ( EPMA ) .

化学结合水法和氢氧化钙法均能表征胶凝材料的水化程度，当采用氢氧化钙法时，应考虑掺合料火山灰反应影响；

However , it is necessary to consider the CH consumption due to pozzolanic reaction of mineral admixtures when using CH content to determine the hydration degree of CCM .

沸石粉高性能混凝土的早期强度较低，后期强度因火山灰反应浆体的密实度增加而有所提高；

The early strength of zeolite high performance concrete is slightly lower , but the densification of mortar has been improved and the strength of concrete is increased after the pozzolanic reactivity .

以固相反应动力学理论为基础，推导了粉煤灰与氢氧化钙的火山灰反应动力学表达式，得到了动力学参数，并予以验证。

Kinetics model of pozzolanic reaction for preparation of flue gas desulfurizer was deduced on basis of solid phase reaction dynamic theory . Kinetics characteristics and its expressions were ( obtained ) .

提出为了改善粉煤灰水泥的性质，必须同时促进粉煤灰的火山灰反应和水泥熟料的水化反应。

It is suggested that both the pozzolanic reaction of fly ash and the hydration of cement clinker must be promoted at the same time to improve the property of fly ash cement .

粉煤灰的火山灰反应符合一级反应动力学模型。不同品质粉煤灰火山灰活性上的差异宏观上对水泥砂浆强度影响甚微。

The pozzolanic reaction of low-limed fly ashes conforms with the class I kinetics model , and the differences in pozzolanic reactivity among low-limed fly ashes have little effect on the strength of cement mortar .

水化程度测试的结果则表明，在早期碱式硫酸盐作用下大量溶解的废弃粗粉煤灰中的活性成分，要在后期才能够完全参与火山灰反应。

The result of hydration reaction shows that , with the help of alkali sulphate , the dissolved glass phases of reject fly ash at the early stage mainly join the pozzolanic reaction at the later stage .

采用7天的抗压强度作为配合比设计的强度标准，对早期强度较低，主要靠火山灰反应提供后期强度的黄泛区二灰土是不合适的。

As lime-fly soil in the area has lower early strength and its late strength is mainly provided by the pozzolanic reaction , so it is not appropriate to use 7-day compressive strength as the mix design strength standard .

固硫灰渣火山灰反应活性明显高于粉煤灰的，反应阻力也较小，这是由其微观结构所决定的。

The pozzolanic activity of the FBC ashes is significantly higher than that of the PC ashes , and the reaction barrier of the former is lower than that of the latter , which are controlled by their microstructures .

测定了粉煤灰火山灰的反应率；

The pozzolanic reaction ratio of fly ash was measured .