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A kind of ecological lightweight filler and preparation method thereof

A lightweight filler and ecological technology, which is applied in the field of ecological lightweight filler and its preparation, can solve the problems of accelerated greenhouse effect, large amount of cement consumption, dust and soot, and achieve the effect of reducing dosage, saving engineering cost and improving workability

Active Publication Date: 2020-07-28
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the amount of cement used in the above materials is relatively large, and the cost is high; and the mass production and use of cement will also cause serious dust and smoke pollution problems, and the production of cement will also emit a large amount of carbon dioxide, which will accelerate the greenhouse effect.

Method used

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  • A kind of ecological lightweight filler and preparation method thereof
  • A kind of ecological lightweight filler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] An ecological lightweight filler, prepared from the following raw materials in parts by mass: 13 parts of silty soil, 18 parts of cement, 30 parts of fly ash, 5 parts of caustic lime mud, water reducing agent (polycarboxylic acid series high-efficiency reducing Aqua) 0.02 parts, water 28 parts, foam 4 parts.

[0042] The preparation method of above-mentioned ecological lightweight filler, comprises the steps:

[0043] (1) 13 parts of silty soil and 4 parts of water are mixed and stirred evenly to prepare mud;

[0044] (2) 18 parts of cement, 30 parts of fly ash, 5 parts of causticized lime mud, 0.02 parts of water reducing agent and 24 parts of water were mixed and stirred evenly to prepare gelled slurry;

[0045] (3) mixing the obtained mud prepared in step (1) with the gelled slurry prepared in step (2) through a mixer;

[0046] (4) The composite cement blowing agent is diluted 40 times with water, and prepared into foam by a foaming machine; the expansion ratio is ...

Embodiment 2

[0050] An ecological lightweight filler, prepared from the following raw materials in parts by mass: 21 parts of silty soil, 12 parts of cement, 31 parts of fly ash, 5 parts of caustic lime mud, water reducing agent (polycarboxylic acid series high-efficiency reducing Aqua) 0.02 parts, water 26 parts, foam 3 parts.

[0051] The preparation method of above-mentioned ecological lightweight filler, comprises the steps:

[0052] (1) 21 parts of silty soil and 6 parts of water are mixed and stirred evenly to prepare mud;

[0053] (2) 12 parts of cement, 31 parts of fly ash, 5 parts of causticized lime mud, 0.02 parts of water reducer and 20 parts of water were mixed and stirred evenly to prepare a gelled slurry;

[0054] (3) mixing the obtained mud prepared in step (1) with the gelled slurry prepared in step (2) through a mixer;

[0055] (4) The composite cement blowing agent is diluted 40 times with water, and prepared into foam by a foaming machine; the expansion ratio is 900 t...

Embodiment 3

[0059] An ecological lightweight filler, prepared from the following raw materials in parts by mass: 14 parts of silty soil, 17 parts of cement, 32 parts of fly ash, 5 parts of caustic lime mud, water reducing agent (polycarboxylic acid series high-efficiency reducing Aqua) 0.02 parts, water 27 parts, foam 3 parts.

[0060] The preparation method of above-mentioned ecological lightweight filler, comprises the steps:

[0061] (1) 14 parts of silt and 5 parts of water are mixed and stirred evenly to prepare mud;

[0062] (2) 17 parts of cement, 32 parts of fly ash, 5 parts of causticized lime mud, 0.02 parts of water reducer and 22 parts of water were mixed and stirred evenly to prepare gelled slurry;

[0063] (3) mixing the obtained mud prepared in step (1) with the gelled slurry prepared in step (2) through a mixer;

[0064] (4) The composite cement blowing agent is diluted 40 times with water, and prepared into foam by a foaming machine; the expansion ratio is 900 times, an...

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Abstract

The invention provides an ecological light filler and a preparation method thereof. The ecological light filler is prepared from the following raw materials in parts by mass: 1-65 parts of silty soil,9-29 parts of cement, 23-53 parts of fly ash, 3-8 parts of causticized white mud, 0.01-0.04 part of a water reducing agent, 23-39 parts of water and 3-5 parts of foam. According to the invention, a method of graded preparation and secondary mixing is adopted, so that full reutilization of silty soil, causticized white mud and fly ash wastes is realized, cement is partially replaced, the dosage ofthe cement is greatly reduced, and the cost is greatly reduced under the condition of ensuring certain mechanical properties of the filler; the preparation method is simple, various raw materials canbe fully dispersed, the water reducing agent can fully play a role, and the engineering cost is effectively saved.

Description

technical field [0001] The invention relates to an ecological lightweight filler and a preparation method thereof, belonging to the technical field of building materials. Background technique [0002] In recent years, the rapid development of my country's infrastructure and industry has also produced a large amount of construction waste and industrial waste. Due to the lack of effective recycling and reuse measures for these wastes, the ecological environment has been seriously damaged. For example, my country, as a big country in the pulp and paper industry, produces an extremely large amount of causticized lime mud. At present, the main treatment methods for causticized lime mud are incineration and landfill, which cause serious pollution to the land and air environment. As one of the three wastes in my country, fly ash (the main oxide composition is: SiO 2 、Al 2 o 3 , FeO, Fe 2 o 3 , CaO, TiO 2 etc.), although it can be added to Portland cement as a mineral admixtur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B38/10C04B38/02B28B1/50C04B111/40
CPCB28B1/50C04B28/00C04B38/02C04B38/106C04B2111/40C04B2201/50C04B18/08C04B2103/302C04B14/04C04B18/0418
Inventor 孙仁娟韩乐冰葛智于博翔宋修广管延华李一帆曾佑真陈一航吕浩天姜能栋
Owner SHANDONG UNIV
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