Double-layer baking-free permeable brick and manufacturing method thereof

Abstract

The invention discloses a double-layer baking-free permeable brick and a manufacturing method thereof. The permeable brick consists of a face layer and a base layer, wherein the face layer mainly comprises 3 to 5 weight parts of mountain flour and 2.2 to 4.4 weight parts of adhesive; the base layer mainly comprises 2 to 4 weight parts of sand stone and 1.2 to 2.4 weight parts of adhesive; the sand stone are small stones made of natural sand and crushed scraps from stone processing; and the thickness ratio of the face layer to the base layer is 1:10-20. The manufacturing method comprises that: the face layer is prepared by mixing and stirring the mountain flour, cement, polymerizer, water and paint in a ratio, filling the mixture in a forming mold, and compacting by vibration; the base layer is prepared by mixing and stirring the sand stone, cement, polymerizer and water in a ratio, uniformly filling the prepared base layer material in the mold after the face layer material is solidified initially and compacting by vibration; and removing the mold after the face layer and the base layer are solidified, maintaining at normal temperature for 10 to 20 days, and obtaining the double-layer baking-free permeable brick.

Description

technical field [0001] The invention relates to a permeable brick laid on the ground in the open air and a manufacturing method thereof, belonging to building materials and a manufacturing method thereof. Background technique [0002] At present, in cities, it is often necessary to lay pavement bricks in municipal projects such as sidewalks, community pavements, pedestrian streets and the ground around buildings. Commonly used pavement bricks include marble, ceramic tiles, glazed bricks, cement bricks, etc. However, due to the low water permeability of the above-mentioned types of pavement bricks, the use of large areas makes it difficult for rainwater to penetrate into the ground, destroying the underground micro-environment, often causing problems such as groundwater level drop, ground subsidence, and vegetation survival difficulties. Weather, the ground is prone to water accumulation, affecting traffic. Therefore, in recent years, permeable bricks have been developed, an...

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Problems solved by technology

[0003] For example, ZL 03126268.x discloses a permeable brick sintered at high temperature (above 1200°C). Although the water permeability and strength are high, the sintering process consumes a lot of energy

Patent application 200910040650.8 discloses a non-fired permeable brick, which is made by pressing waste ceramics as aggregates. The water permeability and strength mentioned in "Research and Development" are a pair of contradictions. Generally, unfired permeable bricks often use the appropriate water-cement ratio to achieve a balance between the two main technical indicators of water permeability and strength. Therefore, the strength of unfired permeable bricks is generally lower

Moreover, whether it is a high-temperature sintered type or a non-fired type permeable brick, there is the same problem. With the extension of the use time, the water permeability will gradually decrease due to the dust blocking the internal channels of the permeable brick. The problem is also an urgent problem to be solved in this field