A kind of ecological concrete and preparation method thereof

A technology of ecological concrete and admixture, which is applied in the direction of ceramic products, other household utensils, applications, etc., can solve the problems of low early strength of ecological concrete, failure to reach the external structure of buildings, low flexural and bending resistance, and achieve Accelerate the curing speed, improve the tensile properties, improve the effect of comprehensive mechanical strength

Inactive Publication Date: 2016-08-24
沈睿 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the popularization and application of ecological concrete, there are also some problems, especially in the application process of building exterior structures, parking lots, sidewalks, squares, parks, roads, river revetments and greening substrates. First of all, the porous structure of ecological concrete , affecting its mechanical strength, especially its compressive performance. It is generally accepted in the industry that porosity and compressive strength are a set of contradictions. How to break this set of contradictions and find a new balance point is the future research direction, that is, to have a good At the same time, it can have high compressive strength; and in practical applications, it is also found that ecological concrete is a brittle structure with low flexural and bending resistance, which cannot reach the external structure of buildings, parking lots, sidewalks, squares, etc. , parks, roads, river revetments and green bases, etc.
At the same time, the low early strength of ecological concrete also affects its further application

Method used

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  • A kind of ecological concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 Shown, a kind of ecological concrete of the present invention is prepared from following raw materials:

[0025] The cement is ordinary Portland cement 525R (China Cement Factory of Nanjing Changjiang Cement (Group) Co., Ltd., Jiangsu Province); the coarse aggregate mainly refers to the dried gravel sludge with a particle size of about 2cm; the fine aggregate mainly refers to the particle size of 0.5 About cm of dried crushed stone sludge; the powder mixture is a hardening accelerator (triisoolamine, Sinopharm Chemical Reagent Co., Ltd.), and calcium silicate hydrate powder with a BET specific surface area of ​​100m2 / g is used as a carrier; The polymer material is EVA emulsion (Sichuan Vinylon Factory of Sinopec Group), with a solid content of 40%); the fibrous material is PVA fiber (Sichuan Vinylon Factory of Sinopec Group), with a diameter of 0.1 μm and a length of 3mm; the water reducing agent is M1 series high water-reducing polycarboxylate superp...

Embodiment 2

[0035] The raw materials for the preparation of a kind of ecological concrete in this embodiment are the same as those in Example 1. As shown in Table 1, the parts by weight of each raw material in this embodiment are: 100 parts of cement, 0.1 part of powdered admixture, 1 part of fibrous material, reinforced 2 parts of polymer agent, 480 parts of coarse aggregate, 50 parts of fine aggregate, 0.5 part of water reducer, 32 parts of water

[0036] The preparation method of the powdery mixture of this embodiment is the same as that of Embodiment 1.

[0037] The preparation method of the present embodiment ecological concrete is identical with embodiment 1.

[0038] 1) Add cement, coarse aggregate, fine aggregate, powdery mixture, and fibrous material into the stirring device and stir evenly for 30 seconds to form the first mixture;

[0039] 2) Stir and mix the high-performance water reducing agent, the reinforcing polymer agent and water to form a second mixture;

[0040] 3) St...

Embodiment 3

[0043] The raw materials for the preparation of a kind of ecological concrete in this embodiment are the same as in Example 1. As shown in Table 1, the parts by weight of each raw material in this embodiment are: 100 parts of cement, 1 part of powdery admixture, 1 part of fibrous material, reinforced 2 parts of polymer agent, 480 parts of coarse aggregate, 50 parts of fine aggregate, 0.5 part of water reducer, 32 parts of water

[0044] The preparation method of the powdery mixture of this embodiment is the same as that of Embodiment 1.

[0045] The preparation method of the present embodiment ecological concrete is identical with embodiment 1.

[0046] 1) Add cement, coarse aggregate, fine aggregate, powdery mixture, and fibrous material into the stirring device and stir evenly for 30 seconds to form the first mixture;

[0047] 2) Stir and mix the high-performance water reducing agent, the reinforcing polymer agent and water to form a second mixture;

[0048] 3) Stir the se...

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Abstract

The invention provides ecological concrete. The ecological concrete is prepared from the following raw materials in parts by weight: 100 parts of cement, 0.01-1.0 part of a powdery mixture, 1-10 parts of a cellulosic material, 0-5 parts of an enhanced polymer agent, 400-550 parts of coarse aggregate, 0-100 parts of fine aggregate, 0.01-0.5 part of a water reducing agent and 20-40 parts of water. According to the ecological concrete provided by the invention, with the addition of a curing accelerator of a calcium silicate carrier, the cellulosic material and the enhanced polymer agent, the bond strength, the tensile performance, the anti-fracture performance and the flexural performance of the ecological concrete are improved, and the paving application of the ecological concrete in the fields including building exterior structures, parking lots, footways, squares, parks, roads, river banks, greening templates and the like with high strength requirements is expanded.

Description

technical field [0001] The invention relates to environmental treatment building materials, in particular to an ecological concrete and a preparation method thereof. Background technique [0002] Ecological concrete is also called porous concrete. The Japan Concrete Engineering Association put forward the concept of porous concrete in 1995: the so-called porous concrete refers to a kind of special concrete material, which has special structure and surface characteristics, can adapt to biological growth, and plays an important role in regulating ecological balance, beautifying the environment, and realizing Harmony between humans and nature has a positive effect. [0003] Due to its porous structure, good rainwater permeability, sound absorption, and suitable for the growth of herbaceous plants, ecological concrete has been used in river landscape slope management and landscaping. With the popularization and application of ecological concrete, there are also some problems, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B28/00C04B28/04C04B22/08C04B16/06
Inventor 沈睿王奋陈永何顺鹏任柯
Owner 沈睿
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