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Geopolymer-based artificial defense stone prepared from all waste and its preparation method

A technology of geopolymers and waste, applied in the field of geopolymer-based artificial stone and its preparation, can solve the problems of weak anti-scouring and anti-weathering performance, complex process, low body density, etc., and achieve anti-weathering performance Strong, simple preparation process, high volume density

Active Publication Date: 2022-02-15
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of natural stone preparation stone replacement, and to solve the problems of low strength, severe efflorescence, low body density, weak anti-freeze, anti-scouring and anti-weathering performance of the existing technology, high energy consumption during production, complicated process, To solve the problem of high cost, the present invention provides a geopolymer-based artificial defense stone prepared from all waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 A geopolymer-based artificial defense stone prepared from all waste

[0033] The artificial defense stone consists of the following raw materials in parts by weight:

[0034] 201 parts of granulated blast furnace slag powder, 78 parts of fly ash, 78 parts of waste red brick powder, 10 parts of silica fume, 140 parts of steel slag powder, 50 parts of desulfurized gypsum, 516 parts of recycled fine aggregate, 1096 parts of recycled coarse aggregate, 230 parts of middle water.

[0035] The preparation method of above-mentioned geopolymer-based artificial defense stone, comprises the steps:

[0036] (1) Weigh the raw materials in said parts by weight, firstly mix the recycled coarse aggregate and raw materials other than reclaimed water in a horizontal concrete mixer;

[0037] (2) Add reclaimed water to the mixture obtained in step (1) and mix in the mixer;

[0038] (3) Add recycled coarse aggregate to the mixture obtained in step (2) and mix evenly;

[0039] ...

Embodiment 2

[0041] Example 2 A geopolymer-based artificial defense stone prepared from all waste

[0042] The artificial defense stone is composed of the following raw materials in parts by weight:

[0043] 245 parts of granulated blast furnace slag powder, 70 parts of fly ash, 70 parts of waste concrete powder, 100 parts of steel slag powder, 20 parts of red mud, 40 parts of desulfurized gypsum, 10 parts of phosphogypsum, 520 parts of recycled fine aggregate, recycled coarse bone 1107 parts of raw materials, 217 parts of reclaimed water, and 1 part of waste fiber.

[0044] The above-mentioned preparation method of geopolymer-based artificial stone is different from Example 1 in that: the types, ratios and steps (1) and (5) of raw materials, the step (1) of this example is to granulate Blast furnace slag powder, fly ash, waste concrete powder, steel slag powder, desulfurized gypsum, phosphogypsum, and waste fiber are added to the concrete mixer and stirred for 1 min; step (5) is carried ...

Embodiment 3

[0045] Example 3 A geopolymer-based artificial defense stone prepared from all waste

[0046] The artificial defense stone consists of the following raw materials in parts by weight:

[0047] 200 parts of granulated blast furnace slag powder, 120 parts of fly ash, 60 parts of tailings powder, 10 parts of calcined coal gangue powder, 120 parts of steel slag powder, 35 parts of desulfurized gypsum, 10 parts of fluorine gypsum, 517 parts of recycled fine aggregate, recycled 1108 parts of coarse aggregate, 220 parts of reclaimed water, and 1 part of waste fiber.

[0048] The above-mentioned preparation method of geopolymer-based artificial stone preparation differs from Example 1 in that: the types, ratios, and steps (1) and (5) of raw materials, step (1) of this example is to first granulate Add blast furnace slag powder, fly ash, waste red brick tailings powder, calcined coal gangue powder, steel slag powder, desulfurized gypsum, fluorine gypsum, and waste fiber into a horizont...

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Abstract

The invention discloses a geopolymer-based artificial defense stone prepared from all wastes and a preparation method thereof, comprising the following raw materials in parts by weight: 288-412 parts of waste silicon-aluminum materials; 85-150 parts of alkali-containing waste ; 29-75 parts of waste sulfate minerals; 1501-1860 parts of recycled aggregate; 216-241 parts of reclaimed water; 0-2 parts of waste fiber; 0-5 parts of agricultural waste. The process of the invention is simple, the prepared artificial stone has no appearance defects, has the advantages of high volume density, high strength (above 34MPa), good weathering resistance, frost resistance and abrasion resistance, and is easy to cast during use. Convenience, good integrity, strong stability, anti-freezing and thawing, anti-weathering, high-speed sand-containing water flow resistance, not easy to get lost under high-speed water flow, it is an ideal substitute for natural stone defense stone.

Description

technical field [0001] The invention belongs to the field of hydraulic materials, and in particular relates to a geopolymer-based artificial stone prepared from all wastes and a preparation method thereof. Background technique [0002] The dangerous sections of river embankment engineering, the control engineering office and the surrounding areas often need to reserve a certain amount of preparedness stones to meet the urgent needs of flood control and emergency rescue. Traditional defense stones are all obtained from mining natural stones, but this kind of source causes permanent damage to the natural mountain, deteriorates the natural environment, and is unsustainable. There is a large demand for flood control stone. Because stone is a non-renewable resource, and due to the policy of closing mountains for afforestation, and the price of transportation oil has risen, the price of stone has continued to rise in recent years. The scarcity of natural stone has become an urgent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14
CPCC04B28/144C04B2201/20C04B2201/50C04B2111/76C04B18/141C04B18/08C04B18/167C04B18/146C04B18/142C04B22/002C04B18/0418C04B18/18C04B22/144C04B22/146
Inventor 李克亮杜晓蒙陈爱玖卢鹏汪志昊廖亦聪付海强谢晓洁位文哲王聪豪
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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