Preparation method of electromagnetic shielding cement-based material

• Main Authors: LIU MIN, LIU RUI, XIAO HUIGANG, LIU KAI, WANG HUAIXING
• Format: Patent
• Language: Chinese; English
• Published: 25.04.2023
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention discloses a preparation method of an electromagnetic shielding cement-based material, which comprises the following steps: step 1, modifying iron-containing solid waste: adsorbing carbon powder on the surface of the iron-containing solid waste to form a surface modified material of the iron-containing solid waste; secondly, the distribution position of the iron-containing solid waste is controlled through a magnetic material, wherein at least one face of the upper top face, the lower bottom face, the left side face and the right side face of a cement mold is made of the magnetic material, and the surface modified material of the iron-containing solid waste obtained in the first step is adsorbed to the surface of the magnetic material; and 3, the cement-based slurry material is poured upwards from a pouring inlet in the lower bottom face of the mold to the top of the mold, demolding is conducted after hardening, and the cement-based material with the electromagnetic shielding function is formed.