Study on excitation technology of low calcium fly ash;

Experimental study on the preparation of low calcium fly ash waterproof coating

Activation of low calcium fly ash, in different admixtures and at different temperatures, was stu- died by TGA, XRD and TSC-TG analysis.

In this paper, the active fly ash was obtained by procee- ding activation treatment for low grade fly ash with adopting the only mechanical grinding and the mechanical grinding plus chemical activator(NaOH、Na2SO4).

The high active fly ash was obtained by proceeding activation treatment for low grade fly ash with adopting efficient composite activating technique of physical activation(mechanical grinding) and chemical activation (adding composite chemical activator).

Our country is in rich of fly ash,low grade fly ash received great limit because of its low activity,resulting in great waste of resources.

Research on using high-calcium fly ash as the hardening agent of soft soil;

Study on volume stability control of cement paste with large amount of high-calcium fly ash;

Effects of slag,high-calcium fly ash,desulfurized gypsum,calcined desulfurized gypsum and sodium sulfate on early age autogenous shrinkage of cement pastes,long terms of desiccation shrinkage and initial cracking sensitivity of cement mortar are researched.

The effect of Cl-ion on properties of high calcium fly ash cement paste;

The prelinminary study of using high calcium fly ash resource to produce expansive cement;

Influence of high calcium fly ash on the physical property of cement;