Method for reducing slow release of chlorine element in sea sand

The invention relates to the technical field of building materials, in particular to a method for reducing slow release of chlorine elements in sea sand. A method for reducing slow release of chlorine elements in sea sand comprises the steps that the sea sand is provided, and the sea sand comprises desorption type dissolved chlorine and combined type dissolved chlorine; carrying out primary water washing on the sea sand, and filtering water to obtain primary dechlorinated sea sand; placing an electrode group comprising at least one pair of an anode electrode and a cathode electrode in a reaction tank, wherein the anode electrode and the cathode electrode are respectively connected with a power supply; the anode electrode is a chlorine evolution electrode; putting the primary dechlorinated sea sand and water into a reaction tank in proportion, and adding electrolyte; and a power supply is connected, so that an electric field is formed between the anode electrode and the cathode electrode, and the combined diss