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Concrete sand-containing water permeable brick core layer and preparation method

A technology of concrete and permeable bricks, which is applied in the field of permeable bricks and can solve problems such as low strength

Active Publication Date: 2018-12-18
连云港东浦建筑工业化发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a concrete sand-containing permeable brick core layer and its preparation method to solve the problem of existing permeable bricks, whose raw material formula does not contain sand, only gravel and cement, although it can achieve a certain water permeable effect, but its strength is very low The problem

Method used

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  • Concrete sand-containing water permeable brick core layer and preparation method
  • Concrete sand-containing water permeable brick core layer and preparation method
  • Concrete sand-containing water permeable brick core layer and preparation method

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preparation example Construction

[0080] In addition, in order to solve the above problems, the present invention also provides a method for preparing the core layer of concrete sand-containing permeable bricks, including:

[0081] Step 1: Feed and stir with cement, crushed stone 4-8 times the weight of the cement, and sand with 8-15% the weight of the crushed stone as raw materials to obtain the mixed core material;

[0082] Step 2, filling the mixed core material into the core layer mold to obtain the molding material to be determined;

[0083] Step 3, vibrating and pressurizing the material to be shaped.

[0084] Preferably, in the step 1, the stirring time for feeding and stirring the raw materials is 5 minutes.

[0085] Preferably, in said step 3, vibration pressurization includes:

[0086] Vibrate the material to be shaped at a vibration frequency of 3800 times / second, and at the same time vibrate at 150KN / m 2 Pressurize under the pressure, carry out vibratory pressurization to described shaping mater...

Embodiment 1-3

[0101] Embodiment 1-3 prepares brick core layer step:

[0102] S1, using cement, crushed stone, sand, carboxylic acid water reducer, quartz sand, ceramsite and emulsifier as raw materials according to the formula in Table 1 for feeding and stirring, and the stirring time is 5 minutes to obtain a mixed core material;

[0103] S2, filling the mixed core material into the core layer mold to obtain the material to be finalized;

[0104] S3, vibrate and pressurize the material to be shaped, vibrate the material to be shaped at a vibration frequency of 3800 times / second, and simultaneously 2 Pressurize under the pressure, carry out vibratory pressurization to described shaping material. Instantly.

Embodiment 4-6

[0105] Prepare brick core layer step among the embodiment 4-6:

[0106] S4, take diatomaceous earth, bentonite, and polyamide according to the raw material formula in each embodiment in Table 1, and stir and mix with a mixer for 15 minutes to obtain the inner core mixture;

[0107] S5, continuously shearing and stretching the mixed inner core mixture in a vacuum state to form a multi-layer composite soft mesh polyamide mixed film;

[0108] S6, put the soft mesh polyamide mixed film into the mold, vibrate the raw material in the mold at a vibration frequency of 3800 times / second, and at the same time, vibrate at a frequency of 150KN / m 2 Pressurize under the pressure to obtain the inner core layer;

[0109] S7, the inner core layer is placed in the middle, and the outer surrounding core layer (the outer surrounding core layer finally obtained in step S3) is coated on the upper and lower sides of the inner core layer to form a plurality of layers arranged from outside to inside....

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Abstract

The invention provides a concrete sand-containing water permeable brick core layer and a preparation method. The concrete sand-containing water permeable brick core layer comprisesis prepared from cement, gravels with the weight being 4 to 8 times of the cement, and sand which accounts for 8 to 15 percent of the gravels, wherein the mark number of the cement is 42.5 to 52.5. By adopting the number-No.42.5 to 52.5 cement with high mark number and high strength serving as a cementing material, and adjusting the mixing amount to an invalid channel quantity of the cement and gravels, not only canthe water permeability of the sand-containing water permeable brick core layer not be influenced, but also the compactness of the basic layer can be improved, the looseness can be reduced, and the strength of the concrete sand-containing water permeable brick core layer can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of permeable bricks, in particular to a concrete sand-containing permeable brick core layer and a preparation method thereof. Background technique [0002] Permeable brick (water seepage brick) is a kind of pavement brick with strong water absorption function. When the brick body is full of water, the water will be drained underground. For urban ground, permeable bricks are used to solve urban surface hardening, absorb water and drain water quickly on urban pavement, and maintain the building material products of pavement shape. [0003] In the existing permeable bricks, the main formula of the core layer is gravel plus cement, and sand will reduce the water permeability to a certain extent, so in order to pursue high water permeability during preparation, sand is not added. The core layer prepared in this way is It becomes a loose product with low strength. [0004] In a word, the raw material formula of ...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/00284C04B2201/50C04B14/02C04B14/06C04B2103/302C04B18/027C04B2103/0068C04B14/08C04B14/104C04B24/287
Inventor 颜成华颜井意颜景凯江森利王春祥宗钟凌
Owner 连云港东浦建筑工业化发展有限公司
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