Long-acting snow-melting agent based on modified zeolite slow-release matrix and preparation method of long-acting snow-melting agent

The invention provides a long-acting snow-melting agent based on a modified zeolite slow-release matrix and a preparation method of the long-acting snow-melting agent, and the long-acting snow-melting agent comprises the following components: slag powder, a modified zeolite snow-melting slow-release carrier, an alkali activator solution, a pore-forming agent and water in a mass ratio of 100: (50-150): (10-20): (1-5): (0-10), the preparation method comprises the following steps: performing high-temperature composite modification on zeolite hydrochloric acid, preparing the modified zeolite snow-melting slow-release carrier, and performing slag alkali-activated porous coating and curing treatment. After the obtained modified zeolite is subjected to hydrochloric acid and high-temperature composite treatment, non-structural substances in internal pore channels are dissolved, the pore channel volume is increased, the pore channel resistance is reduced, the modified zeolite has better snow melting component adsorpti