Preparation method of green porous sponge ecological concrete

A technology of ecological concrete and porous sponge, which is applied in the field of building materials, can solve the problems of not meeting the needs of "sponge city construction, not having the functions of water absorption, water storage, water seepage, and water purification, etc., and achieve good air permeability and water retention, long service life It is not easy to crack and has a long-lasting effect

Inactive Publication Date: 2017-10-20
NANCHANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, ordinary concrete for urban construction is mainly composed of four basic materials: water, cement, sand (fine aggregate), and stone (coarse aggregate). This kind of concrete does not have the functions of water absorption, water storage, water seepage, and water purification. Demand for the construction of "sponge city"

Method used

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preparation example Construction

[0022] The embodiment of the present invention provides a kind of preparation method of green porous sponge ecological concrete, comprises the following steps:

[0023] (1) Preparation of foam: adopt physical foaming technology, dilute the foam agent and make it into numerous air-containing bubbles through a foam generator, as the foam for preparing sponge foam concrete;

[0024] (2) Preparation of materials: 100-150 parts of cement, 20-36 parts of gravel, 45-60 parts of water, 10-15 parts of chopped carbon fiber, 0.5-0.8 parts of copper-plated steel fiber, 1-3 parts of sodium lauryl sulfate 2.5 parts, 18-30 parts of lignin, 15-26 parts of cement, 16-24 parts of concrete expansion agent, 15-25 parts of sponge particles, 22-48 parts of filler, and weigh the raw materials according to the proportion of the components;

[0025] (3) Stirring: Put cement, gravel, water, chopped carbon fiber, copper-plated steel fiber, sodium lauryl sulfate, lignin, concrete expansion agent, sponge ...

Embodiment 1

[0038] A preparation method of green porous sponge ecological concrete is 100 parts by weight of cement, 20 parts by weight of gravel, 10 parts by weight of chopped carbon fiber, 0.5 part by weight of copper-plated steel fiber, 1 part by weight of sodium lauryl sulfate, 18 parts by weight of After mixing lignin, 16 parts by weight of concrete expansive agent, 15 parts of sponge particles and 22 parts by weight of filler, add 45 parts by weight of water and 15 parts by weight of cementing agent, mix well, pour and maintain.

Embodiment 2

[0040] A preparation method of green porous sponge ecological concrete is 150 parts by weight of cement, 36 parts by weight of gravel, 15 parts by weight of chopped carbon fiber, 0.8 part by weight of copper-plated steel fiber, 2.5 parts by weight of sodium lauryl sulfate, 30 parts by weight of After mixing lignin, 24 parts by weight of concrete expansive agent, 25 parts of sponge particles and 48 parts by weight of filler, add 60 parts by weight of water and 26 parts by weight of cementing agent, mix well, pour and maintain.

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Abstract

The invention discloses a preparation method of green porous sponge ecological concrete. The preparation method comprises the following steps: preparing a foam body, preparing materials, sufficiently stirring and mixing, and obtaining sponge foam slurry with uniform bubbles, wherein a sand-free stirring process is adopted and mainly used for producing more pores in the molded ecological porous concrete, and a special cementing agent for the ecological porous concrete is added in the stirring process. The existing concrete stirring process must fill with the fine sand to meet specified grade requirements, and in the stirring process of the invention, the special cementing agent for the ecological porous concrete is added under the condition of no sand, the concrete can meet and even go beyond the specific grade requirements; an appropriate amount of sponge particles can improve the water absorption property and water retention property of the concrete; and by virtue of the interaction of short carbon fibers, copper-plated steel fibers, lignin and concrete swelling agent, the cold resistance, stability and durability of the concrete can be improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a preparation method of green porous sponge ecological concrete. Background technique [0002] Sponge city is a new generation of urban stormwater management concept, which means that the city has good "elasticity" in adapting to environmental changes and responding to natural disasters caused by rainwater. It can also be called "water elastic city". The international general term is "low-impact development stormwater system construction". When it rains, it absorbs, stores, infiltrates, and purifies water, and "releases" the stored water and uses it when necessary. In order to improve the function of urban ecosystem and reduce the occurrence of urban flood disasters. [0003] At present, ordinary concrete for urban construction is mainly composed of four basic materials: water, cement, sand (fine aggregate), and stone (coarse aggregate). This kind of concrete does no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/10C04B28/04C04B38/08
CPCC04B28/04C04B38/08C04B38/106C04B14/02C04B22/002C04B14/386C04B14/48C04B24/16C04B24/24C04B2103/0068C04B20/002C04B14/06C04B18/146C04B14/28C04B2103/54
Inventor 孙笑
Owner NANCHANG INST OF TECH
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