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A kind of water purification ecological concrete and preparation method thereof

An ecological concrete and water purification technology, applied in the field of building materials, can solve problems such as short service life and easy clogging, and achieve the effects of improving water permeability, increasing porosity, and prolonging adsorption life

Active Publication Date: 2020-12-01
JIAHUA SPECIAL CEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the above-mentioned technical problems, the present invention proposes a water-purifying ecological concrete and a preparation method thereof, which can effectively block the existing water-purifying ecological concrete and have short service life, improve the porosity of the concrete, and have a long-term good performance. water permeability

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  • A kind of water purification ecological concrete and preparation method thereof

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Effect test

Embodiment 1

[0039] As a preferred embodiment of the present invention, the present invention includes a water purification granule for concrete, comprising granules with purification function and a starch film on the outer surface of the granule with purification function, and the starch film has a mass fraction of 5 % starch film solution is sprayed on the outer surface of the granule with purification function and then dried, and the starch film solution is obtained by dissolving modified starch in a solvent.

[0040] Among them, the particles with purification function are preferably molecular sieves. The modified starch is obtained through esterification and modification of corn starch, and the solvent is 1,4-dioxane.

[0041] The preparation method of the water purification particles is as follows:

[0042] a. Clean the molecular sieve and dry it at 105°C, then cool it to room temperature;

[0043] b. Dissolving the modified starch in 1,4-dioxane to obtain a starch film solution wi...

Embodiment 2

[0054] As another preferred embodiment of the present invention, the present invention includes a water purification granule for concrete, comprising particles with purification function and a starch film on the outer surface of the particle with purification function, and the starch film has a mass fraction of A 10% starch film solution is sprayed on the outer surface of the granule with purification function and then dried, and the starch film solution is obtained by dissolving modified starch in a solvent.

[0055] Among them, the particles with purification function are preferably fruit shell activated carbon. The modified starch is obtained through esterification and modification of potato starch, and the solvent is dichloromethane.

[0056] The preparation method of the water purification particles is as follows:

[0057] a. Clean the shell activated carbon and dry it at 105°C, then cool it to room temperature;

[0058] b. Dissolving modified starch in methylene chlori...

Embodiment 3

[0069] As another preferred embodiment of the present invention, the present invention includes a water purification granule for concrete, comprising granules with purification function and a starch film on the outer surface of the granule with purification function, and the starch film has a mass fraction of A 15% starch film solution is sprayed on the outer surface of the granule with purification function and then dried, and the starch film solution is obtained by dissolving modified starch in a solvent.

[0070] Among them, the particles with purification function are preferably walnut shells. The modified starch is obtained through esterification and modification of tapioca starch, and the solvent is chloroform.

[0071] The preparation method of the water purification particles is as follows:

[0072] a. Clean the walnut shells and dry them at 105°C, then cool to room temperature;

[0073] b. Dissolving modified starch in chloroform to obtain a starch film solution wit...

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Abstract

The invention relates to the technical field of building materials, in particular to ecological water purification concrete and a preparation method thereof. The ecological water purification concretecomprises 15-25 parts of cement, 0.45-0.65 part of reinforcing material, 0-0.3 part of emulsion powder, 1-4 parts of water purifying material, 5-10 parts of water purifying particles, 65-75 parts ofaggregate and 0.05-0.15 part of water reducing agent, wherein the water purifying particles contain particles having a purifying function and a starch film located on the outer surface of the particles having the purifying function, the starch film is formed through drying after a starch film solution with the mass fraction of 5%-15% is sprayed on the outer surface of the particles having the purifying function, and the starch film solution is obtained by dissolving modified starch in a solvent. The prepared ecological water purification concrete can effectively solve the problem that the ecological water purification concrete in the prior art easily causes blockage and is short in service life, the porosity of the concrete is improved, and the concrete has long good water permeability.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a water-purifying ecological concrete and a preparation method thereof. Background technique [0002] Sponge city construction follows the principle of ecological priority and combines natural approaches with artificial measures. On the premise of ensuring the safety of urban drainage and waterlogging, it maximizes the accumulation, infiltration and purification of rainwater in urban areas, and promotes the utilization of rainwater resources and ecological protection. environmental protection. Permeable concrete is an important part of sponge city construction. In order to better improve groundwater quality and improve drinking water quality, ecological concrete with water purification function came into being. However, the existing permeable concrete pavement has the defects of insufficient decontamination ability and low strength. [0003] In the prior art, a Chine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B38/00
CPCC04B20/1048C04B28/04C04B38/0022C04B2111/00017C04B2201/50C04B14/06C04B2103/0057C04B14/02C04B2103/302C04B14/047C04B14/08C04B14/022C04B14/104C04B18/265C04B38/0074
Inventor 王宁林燕杨涛胡继宗
Owner JIAHUA SPECIAL CEMENT
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