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Dredged silt non-sintered brick and preparation method thereof

A technology for dredging silt and non-sintered bricks, which is applied in the field of dredging silt non-sintered bricks and its preparation, can solve the problems of poor soil mechanical properties, secondary pollution of the environment, and difficulty in development and utilization, so as to improve wear resistance, save energy, Effect of avoiding solid waste pollution

Active Publication Date: 2016-08-31
海绵城市道路材料(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Dredged silt is mainly composed of clay particles with high water content and difficult dehydration, low strength, poor soil mechanical properties, and contains certain harmful pollutants
At present, the domestic disposal of dredged silt is mainly discarded in landfill or low-lying areas, and some even occupy fish ponds and cultivated fields. The formed land is very weak and difficult to develop and utilize.
The silt itself that is discarded everywhere not only takes up a lot of land, but also causes secondary pollution to the environment.

Method used

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  • Dredged silt non-sintered brick and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0050] The dredged silt non-fired brick provided by the invention comprises the following components:

[0051] Dredging silt: 50 parts of artificial gravel, 15 parts of coarse sand, 10 parts of cement, and 0.35 parts of gelling agent.

[0052] Wherein, the manufacture method of dredged silt artificial gravel is:

[0053] 1), adding into the dredged silt and accounting for 8% by weight of the chemical formulation agent is fully mixed to carry out harmless tempering and calcification treatment to it;

[0054] Wherein, in terms of weight percentage, the chemical formulation includes the following components: calcium oxide 18%, magnesium oxide 18%, zeolite 18%, polyacrylamide 11%, polyferric sulfate 35%;

[0055] 2) Dehydrating and reducing the weight of the treated dredged sludge and then granulating to obtain dredged sludge artificial gravel.

[0056] The preparation method of the dredged silt non-fired brick comprises the following steps:

[0057] a. Fully stir and mix the d...

Embodiment 2

[0061] The dredged silt non-fired brick provided by the invention comprises the following components:

[0062] 80 parts of dredged silt artificial gravel with a particle size of 1.5-2 mm, 25 parts of coarse sand with a particle size of 1.5-2 mm, 20 parts of po42.5 cement, and 0.65 parts of inorganic water-permeable and water-retaining cement concrete gelling agent.

[0063] The manufacturing method of dredged silt artificial gravel is:

[0064] 1), adding into the dredged silt and accounting for 12% by weight of the chemical formulation agent is fully mixed to carry out harmless tempering and calcification treatment to it;

[0065] Wherein, in terms of weight percentage, the chemical formulation includes the following components: calcium oxide 22%, magnesium oxide 22%, zeolite 22%, polyacrylamide 8%, polyferric sulfate 26%;

[0066] 2) Dehydrating and reducing the weight of the treated dredged sludge and then granulating to obtain dredged sludge artificial gravel.

[0067] T...

Embodiment 3

[0072] The dredged silt non-fired brick provided by the invention comprises the following components:

[0073] 60 parts of dredged silt artificial gravel with a particle size of 1.5-2 mm, 22 parts of coarse sand with a particle size of 1.5-2 mm, 13 parts of po42.5 cement, and 0.4 parts of inorganic water-permeable and water-retaining cement concrete gelling agent.

[0074] The manufacturing method of dredged silt artificial gravel is:

[0075] 1), adding into the dredged silt the chemical formulation agent accounting for 10% by weight and fully mixing to carry out harmless tempering and calcification treatment to it;

[0076] Wherein, in terms of weight percentage, the chemical formulation includes the following components: 20% calcium oxide, 20% magnesium oxide, 17% zeolite, 8% polyacrylamide, and 35% polyferric sulfate;

[0077] 2) Dehydrating and reducing the weight of the treated dredged sludge and then granulating to obtain dredged sludge artificial gravel.

[0078] The...

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Abstract

The invention relates to the technical fields of civil engineering and environmental engineering, and specifically relates to a dredged silt non-sintered brick prepared mainly from the following raw material components in parts by weight: 50 to 80 parts of dredged silt artificial grit, 15 to 25 parts of coarse sand, 10 to 20 parts of cement, and 0.35 to 0.65 part of a gelatinizing agent. A non-sintering technology is adopted, energy can be saved, and air pollution and solid waste pollution caused by calcination are avoided. The main raw material is selected from dredged silt, rivers can be dredged, water areas can be beautified, waste can be turned into treasure, and resources are recycled.

Description

technical field [0001] The invention relates to the technical fields of civil engineering and environmental engineering, in particular to a dredged silt non-fired brick and a preparation method thereof. Background technique [0002] Clay bricks are widely used as a traditional wall material. In my country, wall materials account for about 70% of the entire building materials, and clay bricks still play a leading role in wall materials. The clay resources required for the production of solid clay bricks are relatively high-quality clay in arable land. Therefore, its The destruction of land resources is evident. According to statistics, there are still more than 90,000 brick and tile enterprises in the country, covering an area of ​​more than 5 million mu. The annual production of clay bricks is about 600 billion pieces, consuming 1.3 billion cubic meters of clay resources, and the average excavation depth is 3 meters. In conversion, it is equivalent to destroying about 700,0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B22/14C04B18/04C04B20/02
CPCY02W30/91C04B28/04C04B20/02C04B2201/50C04B14/06C04B22/142C04B22/149C04B22/147C04B22/124C04B2103/408C04B2103/0086C04B18/0436C04B22/066C04B22/064C04B14/047C04B24/2652
Inventor 甘智斌王平杨可
Owner 海绵城市道路材料(深圳)有限公司
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