Multi-solid-waste baking-free steaming-free water permeable brick with double-layer structure and preparation method thereof

Abstract

The invention discloses a multi-solid-waste baking-free steaming-free water permeable brick with a double-layer structure and a preparation method thereof, and belongs to the field of preparation of building materials; the water permeable brick comprises a surface layer and a base layer, and the surface layer is composed of the raw materials in parts by weight: 80-100 parts of steel slag micro powder, 20-30 parts of silica fume, 1-4 parts of epoxy resin, 0.5-2 parts of a curing agent, 0.1-0.5 part of a water reducing agent and 10-20 parts of water; the base layer is composed of the raw materials in parts by weight: 10-20 parts of cement, 80-100 parts of iron ore waste rock, 20-30 parts of iron tailing powder, 0.1-0.5 part of a water reducing agent and 10-20 parts of water; the water permeable brick has the beneficial effects that the solid waste utilization rate is high, resource utilization of solid waste is achieved, the process is simple, high-temperature calcination is not needed,energy consumption is low, the surface layer adopts extremely fine particles, and the situation that the interior of the water permeable brick is blocked due to overlong use time is avoided; and silica fume is added into the surface layer as an excitant, so that the strength and the wear resistance of the water permeable brick are improved.

Description

technical field [0001] The invention relates to a multi-solid waste non-burning and non-steaming double-layer structure permeable brick and a preparation method thereof, belonging to the field of building material preparation. Background technique [0002] With the rapid development of my country's economy and the vigorous development of urbanization, the original green space was replaced by large-scale ground pavement, and the formed "urban desert" greatly increased the impermeable area, making it impossible for urban rainwater to return to nature. As a result, urban The groundwater is greatly reduced, and there is a danger of urban buildings sinking; and when the city suddenly rains, the rainwater on the road surface cannot leak quickly, causing a great burden on urban drainage facilities and easily developing into urban waterlogging. At the same time, its large area of ​​paved road weakens the breathing function of the city, which will cause the "heat island effect", reduc...

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Problems solved by technology

[0004] In order to solve the above existing problems, the present invention provides a multi-solid waste non-burning and non-steaming double-layer structure permeable brick and its preparation method, using iron ore waste rock, iron tailings and steel slag as raw materials, high solid waste utilization rate, reducing The waste of site resources and a series of ecological problems are caused by the stacking of Tianmai; the molding process is press molding, the process is simple, no high-temperature calcination is required, and the energy consumption is low; the surface layer is made of epoxy resin and micro-powder to avoid dust inside the permeable brick due to the use of time Silt clogging, adding silica fume as an activator can stimulate the activity of steel slag and improve the strength and wear resistance of permeable bricks

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