Preparation Method of High Content Fly Ash Cement and Analysis on Mechanics Performance

In order to have a comprehensive utilization of the fly ash,the comparison experiment method was applied to prepare the cement with two different fly ashes 50% and 60% individually.The crystal nuclein technology to induce and promote the fly ash water reaction was applied to study the grinding time,the fly ash added value and the crystal nuclein influenced to the mechanics performances of the fly cement.The results showed that as for the cement prepared with high fly ash content,the fineness and content of the fly ash would have a high influence to the initial strength of the cement and would have the steadily reduced influences to the late strength.When the grinding time was 90 minutes,crystalnuclein content was 3%,the cement samples with 50% fly ash could reach the standard of 42.5R fly ash cement and the cement samples with 60% fly ash could reach the standard of 32.5R fly ash cement.