Quick solidifying method of sand lime brick

Abstract

The invention provides a quick solidifying method of a sand lime brick. The quick solidifying method is used for quickly solidifying the sand lime brick blank without autoclaving, so as to avoid the use of high-cost equipment of large industrial steam furnaces and the like, and reach the energy-saving and environment-friendly effects. The quick solidifying method comprises the following steps of selecting the raw materials of sandstone, lime, cement and an additive, uniformly stirring, sending into a brickmaking machine, and forming, so as to obtain the brick blank; stacking the brick blank, spraying a concrete curing agent, curing, and forming the brick, wherein the additive is water glass or gypsum. The quick solidifying method of the sand lime brick has the advantages that the cement isadded into the brick-making raw materials of the sand lime brick, and the water glass or gypsum is used as the additive, so that the hydration speed of the cement can be controlled by the additive, the solidifying time is adjusted, the early strength is improved, the dry shrinkage deformation is reduced, and the durability of the cement is improved; the formed brick blank is free from high-pressure steam autoclaving, is sprayed with a concrete curing agent at normal temperature, and is naturally cured, so as to form the brick, thereby greatly reducing the brickmaking cost; the quick solidifying method is especially suitable for miniature brickmaking factories with small land area and low fund cost, the high-energy consumption cost of coal firing and the like is not required, and the energy-saving and environment-friendly effects are realized.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a rapid solidification method for lime-sand bricks. Background technique [0002] As a new building material, sand-lime brick is an environmentally friendly product that replaces traditional fired clay bricks. It has been widely used in load-bearing walls of multi-storey mixed structure buildings. The existing lime-sand brick production process includes the following steps: taking sand and lime as brick-making raw materials; the brick-making raw materials are mixed and stirred in a suitable proportion, and then sent to the brick-making machine to form bricks; High pressure steam curing in a steam oven. However, this commonly used lime-sand brick production process requires large-scale industrial steam furnaces and related support equipment for the high-pressure steam curing of bricks. The required equipment costs high and requires high energy consumption, which is not...

AI Technical Summary

Problems solved by technology

However, this commonly used lime-sand brick production process requires large-scale industrial steam furnaces and related support equipment for the high-pressure steam curing of bricks. The required equipment costs high and requires high energy consumption, which is not energy-saving and environmentally friendly. Popularization and Application of Lime-sand Brick