Non-burnt brick prepared from unwanted soil residues and preparation method thereof

A technology of avoiding burning bricks and mud slag, which is applied in the direction of building components, buildings, building structures, etc., to achieve the effect of simple process, large processing capacity and solving a large amount of stockpiling

Active Publication Date: 2017-09-15
深圳市绿志新型建材研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a kind of residual mud and slag soil unburned brick and its p

Method used

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  • Non-burnt brick prepared from unwanted soil residues and preparation method thereof
  • Non-burnt brick prepared from unwanted soil residues and preparation method thereof
  • Non-burnt brick prepared from unwanted soil residues and preparation method thereof

Examples

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Example Embodiment

[0032] The present invention also provides a method for preparing unfired bricks with residual mud and slag, figure 1 It is the production process flow chart of the preparation method of the residual mud slag soil unburned brick of the present invention, as figure 1 shown, including the following steps:

[0033] S100, using residual sludge as the main raw material, after being dehydrated and pulverized, mixed with cement and a polymerizing agent, and then granulated to form stabilized soil granules;

[0034] S200, uniformly mixing the stabilized soil particles with cement, curing agent, and additives, and pressing them into shape;

[0035] S300, curing under natural conditions for 7 to 14 days to obtain the burnt-free brick with residual mud and slag.

[0036] In another preferred embodiment of the present invention, in the step S100, the moisture content of the residue after dehydration treatment is <8%, and the particle size after pulverization is <5mm. The polymerizing a...

Example Embodiment

[0040] Example 1

[0041] The unilateral ratio is based on 1500kg of residual sludge, 200kg of cement, 30kg of polymerizing agent, 15kg of curing agent and 30kg of additives. according to figure 1 The production process is to prepare unfired bricks with residual mud and slag, in which the amount of granulated cement accounts for 40% of the single ratio cement. After 14 days of natural curing after molding, the compressive strength and softening coefficient were tested. Test results: compressive strength 6.3MPa, softening coefficient 83%.

Example Embodiment

[0042] Example 2

[0043] The unilateral ratio is based on 1200kg of residual sludge, 400kg of cement, 10kg of polymerizing agent, 1kg of curing agent and 1kg of additives. according to figure 1 The production process is to prepare unfired bricks with residual mud and slag, in which the amount of granulated cement accounts for 50% of the single ratio cement. After 14 days of natural curing after molding, the compressive strength and softening coefficient were tested. Test results: compressive strength 26.3MPa, softening coefficient 98%.

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Abstract

The invention discloses a non-burnt brick prepared from unwanted soil residues and a preparation method thereof. The non-burnt brick comprises, by mass, 1200 to 1500 parts of unwanted soil residues, 200 to 400 parts of cement, 10 to 30 parts of a polymerizer, 1 to 15 parts of a curing agent and 1 to 30 parts of an additive. The preparation method for the non-burnt brick comprises the following steps: drying and crushing the unwanted soil residues, then blending the crushed unwanted soil residues with the cement and the polymerizer and carrying out granulation to form stable soil particles which are used for replacing conventional sand and stone as a framework material for the non-burnt brick; and mixing the stable soil particles with the cement, the curing agent and the additive to prepare the non-burnt brick. The non-burnt brick prepared from unwanted soil residues has a strength grade of Mu5.0 to Mu30 and a softening coefficient of 80 to 98%, and the water absorption rate, durability, radioactivity and the like of the non-burnt brick meet standard requirements. The invention has the beneficial effects that unwanted soil residues are recycled; environmental pollution is reduced; natural resources are saved; production cost for constructional bricks is lowered; the preparation method is simple and convenient; and substantial social benefits and economic benefits are produced.

Description

technical field [0001] The invention belongs to the field of building materials, and more specifically relates to a residual mud and soil non-fired brick and a preparation method thereof. Background technique [0002] With the rapid development of Chinese cities, the bottlenecks restricting urban development are becoming more and more obvious while the scale of cities is expanding. Taking Shenzhen as an example, the "Shenzhen Speed" has achieved remarkable results, however, a large amount of leftover mud has become a worry in the city's growth. With the commencement of subway and other projects across the board, Shenzhen produces more than 20 million tons of residual sludge a year. There are a total of 151 storage yards in the city, of which 145 are full. There are 6 buildings left, and the remaining storage capacity is about 16 million cubic meters, which is difficult to maintain for a year. A large amount of muck will cause many problems during the standby period: for ex...

Claims

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Application Information

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IPC IPC(8): C04B28/04E04C1/00
Inventor 杨根宏彭孟啟孙国彬李正茂宋晓明秦吉
Owner 深圳市绿志新型建材研究院有限公司
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