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Organic and inorganic compound cemented water-permeable brick and preparation method thereof

An inorganic composite and composite cementing agent technology, applied in clay preparation devices, chemical instruments and methods, manufacturing tools, etc., can solve the problems of complex production process, failure of water permeability, unfriendly environment, etc., to achieve simple production process, guarantee glue Bonding strength and the effect of improving water permeability

Active Publication Date: 2017-03-22
湖南星星中南环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ceramic permeable bricks are made of waste slag, waste glass material, waste ceramics and domestic garbage, etc., and fired from sludge or clay. They are characterized by high strength, good water permeability, and solid waste can be used, but there are complex production processes, Disadvantages such as high energy consumption, high cost, low production efficiency, and large investment scale; concrete permeable bricks use sand, massive solid waste, and gravel as aggregates, and cement as the cement, and are pressed and maintained after a reasonable mix ratio. The process is simple and the price is low, but due to the poor cement bonding performance, it is easy to cause hole blockage when the amount is large, and the compressive strength of the permeable brick is low when the amount is small, and due to the characteristics of cement slurry, the concrete permeable brick must use large aggregates to form Unicom pores, and such large pores are prone to failure of water permeability due to sediment blockage, and at the same time, the water filtration effect is poor; resin cemented sand-based permeable bricks use epoxy resin, polyurethane, and acrylic resin as cementing agents. Water modification (CN1966861A), and then use calcined aeolian sand or river sand as aggregate, add cross-linking agent, anti-aging agent, curing agent, etc., press with a certain mixing ratio, and bake and cure at 60-200 °C It is made in 1-4 hours (CN102234973A), although it has good water permeability and high strength, it is expensive, has poor weather resistance, and is not environmentally friendly

Method used

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preparation example Construction

[0033] The present invention also provides a method for preparing the organic-inorganic composite cemented permeable brick, including the preparation of an organic composite cement, the formation of the permeable brick body, and the maintenance of the permeable brick body; specifically, the following steps are included:

[0034] (1) Mix the monomer hydroxypropyl acrylate, acrylamide, sodium dodecylbenzenesulfonate, propyltrimethoxysilane, water and cement according to the weight ratio of the permeable brick of the present invention, and stir with a rotary mixer For the slurry, the stirring speed is 120 rpm, and the stirring time is 10-20 minutes, to complete grafting and copolymerization, and form an organic binder;

[0035] (2) On the basis of the organic cement obtained in step (1), add an appropriate amount of cement and water, and mix with two kinds of aggregates with different particle sizes according to the ratio, and vibrate in a steel mold of 100mm×100mm×35mm Squeeze, ...

Embodiment 1

[0041] This example is used to illustrate the organic-inorganic composite cemented permeable brick and its preparation method provided by the present invention.

[0042] Weigh 3g of monomeric hydroxypropyl acrylate, 1g of acrylamide, 0.5g of sodium dodecylbenzenesulfonate, 0.5g of propyltrimethoxysilane, 3g of water, and 4g of cement, and stir and mix with a rotary mixer at a speed of The stirring time is 120 rpm and the stirring time is 20 minutes to obtain an organic binder. Weigh 480g of gravel with a particle size of 5mm, 120g of river sand with a particle size of 0.5mm, and 68g of cement, mix them with the above-mentioned organic cement, add 20g of water, stir and mix for 10 minutes, and pour the mixture into a steel pipe with a size of 100mm×100mm×35mm. In mold making, vibrate for 1 minute, then use a hydraulic press to press and form under the pressure of 20 MPa, hold the pressure for 1 minute, release the pressure and demould to obtain a permeable brick body, and maint...

Embodiment 2

[0046] This example is used to illustrate the organic-inorganic composite cemented permeable brick and its preparation method provided by the present invention.

[0047] Weigh 4g of monomeric hydroxypropyl acrylate, 1.5g of acrylamide, 0.8g of sodium dodecylbenzenesulfonate, 0.7g of propyltrimethoxysilane, 4g of water, and 4g of cement, and stir and mix with a rotary mixer. The speed is 120 rpm, and the stirring time is 20 minutes to obtain an organic binder. Weigh 500g of gravel with a particle size of 5mm, 100g of river sand with a particle size of 0.5mm, and 65g of cement, mix them with the above-mentioned organic cement, add 20g of water, stir and mix for 10 minutes, and pour the mixture into a steel pipe with a size of 100mm×100mm×35mm. In mold making, vibrate for 1 minute, then use a hydraulic press to press and form under the pressure of 20 MPa, hold the pressure for 1 minute, release the pressure and demould to obtain a permeable brick body, and maintain it at room tem...

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Abstract

The invention discloses an organic and inorganic compound cemented water-permeable brick. Two aggregates in different grain size and an organic and inorganic compound cementing agent are mixed and prepared into the water-permeable brick. The organic and inorganic compound cementing agent is a hydrophilic compound cementing agent which is formed by compounding an organic cementing agent with an inorganic cementing agent, wherein the organic cementing agent is formed by grafting and copolymerizing organic matter monomer hydroxy-propyl acrylate, acrylamide, sodium dodecyl benzene sulfonate and propyl trimethoxy silane under a cement hydration environment; the weight of the fine aggregate is 10-30% of the weight of coarse aggregate; in 100 weight parts of aggregates, the content of the organic and inorganic compound cementing agent is 5-30%. The invention also provides a preparation method for the organic and inorganic compound cemented water-permeable brick; the process is simple; the organic and inorganic compound cemented water-permeable brick disclosed by the invention has the advantages of low cost, high strength, high abrasive resistance, excellent water permeability performance, and the like.

Description

technical field [0001] The invention relates to the field of permeable bricks, in particular to an organic-inorganic composite cemented permeable brick and a preparation method thereof. Background technique [0002] With the development of the city, the urban surface is gradually covered by buildings and various water-blocking materials. Marble, glazed brick, cement, asphalt and other impermeable materials harden every corner of the city, causing very adverse effects on the urban environment: When it rains, because it cannot penetrate into the ground, it is easy to form waterlogging and increase the burden on drainage facilities; because the groundwater cannot be replenished, the groundwater level drops, resulting in urban road surface subsidence, municipal greening vegetation is difficult to grow normally, and the heat island effect becomes more and more obvious. Using permeable materials instead of non-permeable materials to build urban pavements plays a very active and im...

Claims

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Application Information

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IPC IPC(8): C04B28/00B28C5/00B28B1/08
CPCB28B1/08B28C5/006C04B28/00C04B2111/00284C04B2201/50C04B24/06C04B24/125C04B24/20C04B24/42C04B14/02C04B14/06C04B7/00
Inventor 余润洲陈自力蔡喆胡勇
Owner 湖南星星中南环保材料有限公司
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