Study on fly ash slag based polymer cement system for tritium curing
Aiming at the problem of safe treatment of tritiated wastewater in nuclear industry,a kind of polymer cement curing system based on alkali excited fly ash and slag was established.The cement solidified by optimized design has excellent sulfate re-sistance,freeze-thaw resistance and dense microstructure.The introduction of polyacrylic acid greatly enhanced the interfacial bond between the fiber and the matrix,thus effectively improving the compressive strength and flexural strength of the cured body.Ex-perimental study of simulated tritium water shaws that,the deuterium leakage rate of the polymer cement solidified body in this pa-per is significantly lower than that of the conventional silica cement solidified body.In particular,the deuterium leakage rate before and after spraying at 10％deuterium water concentration is 25.11％and 0.68％,respectively.
万方数据
维普
