Autoclaved lime-sand brick and production method thereof

An autoclaved lime-sand brick and autoclaved curing technology, which is applied in the fields of building materials and solid waste resource utilization, can solve the problems of difficult disposal of construction mud cake solid waste, achieve good industrial prospects, reduce production costs, and The effect of compressive strength

Active Publication Date: 2018-11-30
ROAD ENVIRONMENT TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] Aiming at the technical problems such as the difficulty in the treatment of construction mud cake solid waste in the prior art, the first purpose of this invention is to provide a kind of autoclaved machine which utilizes construction mud cake and other solid waste as the main raw material and has better mechanical properties. Lime-sand brick, th

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] According to the material analysis results, the formula design is shown in Table 5, and an exploratory brick pressing test was carried out.

[0062] Table 5 Experimental Design Formulation

[0063] serial number

[0064] First, the dewatered cake is rolled and passed through an 8-mesh sieve, and the rice stone is passed through a 5mm sieve. The required raw materials are measured according to the proposed formula, mixed manually, and an appropriate amount of water is added to make the mixture meet the moisture requirement (about 8%). After mixing, put it in a cone, cover it, let it age for 0.5 hours, press it and let it stand for 4-5 hours, put it in an autoclave, and keep it in an autoclave for 24 hours under the pressure of 2MPa, and test its physical properties. The results are shown in Table 6.

[0065] Forming press (ZY360 brick machine) parameters: low pressure pressing 0.8s, primary exhaust 0.1s, medium pressure pressing 1.2s, secondary exhausting 0.2s...

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PUM

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Abstract

The invention discloses an autoclaved lime-sand brick and a production method thereof. The autoclaved lime-sand brick is produced through a dehydrated mud cake drying step, a crushing and grinding step , a proportioning and stirring step, a digestion aging step, a compaction molding step and an autoclave curing step of raw materials containing exposed aggregate finish, sandstones, cement and building mud cakes. The obtained autoclaved lime-sand brick has good mechanical properties and meets the requirements of national standard GB50574-2010, and the method realizes the recycling of solid wasteconstruction mud cakes, reduces the production cost of the autoclaved lime-sand brick, reduces the occupied land of construction wastes, and has a good industrial prospects and a great social significance.

Description

technical field [0001] The invention relates to an autoclaved lime-sand brick, in particular to a method for preparing an autoclaved lime-sand brick that meets national standards by mixing construction mud cake with other commonly used industrial raw materials, and belongs to the field of resource utilization of solid waste and the field of building materials . Background technique [0002] my country's autoclaved lime-sand bricks developed earlier, as early as 1913 in Yanbu Town, Guangzhou, a brick factory was built to produce autoclaved lime-sand bricks. After the founding of New China, under the guidance of experts from the former Soviet Union and the leadership of local governments, it began to vigorously develop autoclaved lime-sand bricks. However, due to various reasons, it was not until 1970 that my country built Beijing Silicate Products Factory and Baotou Resin Factory. Many enterprises, whose output is less than 500 million standard bricks. [0003] After 1975, u...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/00017C04B2201/50C04B14/06C04B14/02C04B18/16
Inventor 侯浩波李嘉豪李政家何雯婧梁安娜雷杰妮
Owner ROAD ENVIRONMENT TECH
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