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Environment-friendly paving brick for efficiently purifying air and manufacturing method thereof

A technology for purifying air and paving bricks, which is applied to pavements, roads, roads and other directions paved with prefabricated blocks. , the effect of protecting the environment

Inactive Publication Date: 2017-10-24
建积(深圳)环保建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since this method combines the photocatalyst (TiO 2 ) is directly mixed into cement, and the cement hydration product is wrapped in TiO 2 around the particles, thereby reducing the photocatalytic ability
Therefore, the efficiency of paving bricks to purify the air needs to be improved

Method used

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  • Environment-friendly paving brick for efficiently purifying air and manufacturing method thereof
  • Environment-friendly paving brick for efficiently purifying air and manufacturing method thereof
  • Environment-friendly paving brick for efficiently purifying air and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Produce concrete paving bricks according to the ratio in Table 1. Compressive strength and NO x The method for determining the rate of reduction is recognized in the art.

[0026] From the ratio listed in Table 1 and the characteristics of the produced concrete paving bricks, it can be seen that due to the increase in the amount of waste glass aggregate, the strength of the paving bricks has decreased, but the strength of all concrete paving bricks still reaches above 49MPa. Fully meet the requirements of Hong Kong Building Code and British Standards. Under the same content of titanium dioxide, when waste glass aggregates are added, the brick has no effect on NO x The reduction rate increases, which is mainly due to the increase in the probability of titanium dioxide participating in the reaction due to the refraction of light by glass.

[0027] Table 1. Proportion and performance measurement results of environmentally friendly bricks

[0028]

[0029] Note: In T...

Embodiment 2

[0031] Proportionally produce concrete paving bricks according to Table 2. And measure the compressive strength and NO x reduction rate.

[0032] From the listed proportions of Table 2 and the characteristics of the manufactured concrete paving bricks, it can be seen that the compressive strength of the bricks increases due to the increase in the amount of cement, compared with Example 1, the content of titanium dioxide increases, and the NO x The reduction rate increases, but when the titanium dioxide exceeds 6%, the increase in the absorption rate is not obvious.

[0033] Table 2. Proportion and performance measurement results of environmentally friendly bricks

[0034]

Embodiment 3

[0036] Produce concrete paving bricks according to the ratio in Table 3. And measure the compressive strength and NO x reduction rate.

[0037] It can be seen that the paving bricks manufactured according to the ratio in the table can obtain good compressive strength and NO x Reduce rate.

[0038] Table 3. Proportion and performance measurement results of environmentally friendly bricks

[0039]

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Abstract

The invention relates to an environment-friendly paving brick for efficiently purifying air. The environment-friendly paving brick comprises an absorbing layer and a base layer, wherein the absorbing layer is located on the upper layer of the paving brick; the base layer is located on the lower layer of the paving brick and has a bearing function; the absorbing layer contains cement, aggregates and activated carbon; the aggregates in the absorbing layer include red brick sand, waste glass aggregates and sea sand; the base layer contains cement and aggregates; the aggregates of the base layer include regenerated red brick aggregates, sea sand or stone aggregates. The invention provides a manufacturing method utilizing the recovered red brick sand and activated carbon to manufacture the environment-friendly paving brick for efficiently purifying air. The capacity of reducing the automobile exhaust of the paving brick is 30% or above higher than that of the traditional paving brick for purifying air, a new method is supplied for recycling the red brick sand of building wastes and meanwhile the mining of natural stone is saved, the urban air is purified and the environment is protected, so that the environment-friendly brick and the manufacturing method thereof provided by the invention are new technologies for sustainable development.

Description

technical field [0001] The invention relates to an environment-friendly paving brick capable of efficiently purifying air and a manufacturing method thereof, belonging to the technical field of building materials. Background technique [0002] With the rapid economic growth and the improvement of people's living standards, the annual construction waste generated in my country's large and medium-sized cities has reached 1.5 billion tons, of which 40%-60% are clay bricks. The current disposal of these wastes not only becomes a serious social and environmental problem but also seriously affects the country's sustainable development strategy, and the adopted method of recycling clay brick waste is costly and inefficient. It is increasingly important to develop new technologies to recycle and utilize red brick construction waste. [0003] The use of construction waste to make environmentally friendly bricks that can purify the air can not only consume a large amount of construct...

Claims

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Application Information

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IPC IPC(8): C04B28/02C04B41/65E01C5/06
CPCC04B28/02C04B41/009C04B41/5041C04B41/65C04B2111/00017C04B2111/00612C04B2111/0075C04B2201/50E01C5/065C04B18/08C04B18/16C04B18/0427C04B14/022C04B14/106C04B14/068C04B41/4572C04B41/4535
Inventor 不公告发明人
Owner 建积(深圳)环保建材科技有限公司
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