CN109825303A - A kind of environmental protection soil-solidified-agent and preparation method thereof - Google Patents
A kind of environmental protection soil-solidified-agent and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of environmentally friendly soil-solidified-agents and preparation method thereof, according to parts by weight, including following component: 30-50 parts of organic matter, 20-30 parts of fatty acid, 1-5 parts of calcium lignosulfonate, 12-20 parts of lithium hydroxide, 1-5 parts of superfine silicon dioxide, 8-12 parts of liquid phosphoric acid aluminum dihydrogen.Its preparation step are as follows: (1) calcium lignosulfonate, lithium hydroxide are added in distilled water, stir and alkaline neutralizer is made；(2) fatty acid is mixed with liquid phosphoric acid aluminum dihydrogen, fatty acid dilution liquid is made in heating, stirring；(3) organic substance is pulverized, is added in fatty acid dilution liquid, heating, stirring；(4) alkaline neutralizer is added in mixture made from step (3), is stirred evenly, superfine silicon dioxide is added, ultrasonic agitation is to get the environmentally friendly soil-solidified-agent.Environmental protection soil-solidified-agent prepared by the present invention has the characteristics that safe to use, free from environmental pollution, environmentally protective, anti-pressure ability is strong, water stability and freezing stability are high.
Description
Technical field
The present invention relates to curing agent technology field, more particularly to a kind of environmentally friendly soil-solidified-agent and its preparation side
Method.
Background technique
The solidification of soil is to carry out physical chemistry processing to the soil body with outer-penetrating agent, to change composition of the soil, changes the soil body
Engineering properties, thus achieve the purpose that improve soil strength, improve soil property compactibility.
In the prior art, soil-solidified-agent is broadly divided into two class of solid-state soil-solidified-agent and liquid soil-solidified-agent.It is existing
Some liquid soil-solidified-agents are in highly acid or strong basicity mostly, can not only bring very big danger to operator in use
Danger, and certain destruction can be caused to the ecological environment around field of employment.In addition, existing liquid soil-solidified-agent is strong
It spends that lower, water stability is poor, is protected from environmental bigger, and higher cost is unfavorable for promoting.
Therefore, how to provide the environmentally friendly soil-solidified-agent that a kind of performance is good, at low cost is that those skilled in the art need to solve
Certainly the problem of.
Summary of the invention
In view of this, the present invention provides a kind of environmentally friendly soil-solidified-agent and preparation method thereof, environmental protection prepared by the present invention
Soil-solidified-agent has strong safe to use, free from environmental pollution, environmentally protective, anti-pressure ability, water stability and freezing stability
The features such as greatly improving, and it is cheap, simple and easy to use.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of environmental protection soil-solidified-agent, comprising: 30-50 parts of organic matter, 20-30 parts of fatty acid, calcium lignosulfonate 1-5
Part, 12-20 parts of lithium hydroxide, 1-5 parts of superfine silicon dioxide, 8-12 parts of liquid phosphoric acid aluminum dihydrogen.
Preferably, the organic matter is one of straw, shell, sawdust, waste paper or a variety of.
Preferably, the fatty acid is vegetable and animals oils or other synthetic oils.
The invention also discloses a kind of preparation methods of environmentally friendly soil-solidified-agent, comprising the following steps:
(1) calcium lignosulfonate, lithium hydroxide are added in 50-70 DEG C of distilled water, stir and alkaline neutralizer is made；
(2) fatty acid is mixed with liquid phosphoric acid aluminum dihydrogen, is heated to 50-60 DEG C of stirring 1-2h, fatty acid dilution is made
Liquid；
(3) organic substance is pulverized, is added in fatty acid dilution liquid, is heated to 130-150 DEG C of stirring 3-5h；
(4) alkaline neutralizer is added in mixture made from step (3), is stirred evenly, superfine silicon dioxide is added, surpassed
Sound stirs 0.5-2h to get the environmentally friendly soil-solidified-agent.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention makes the curing agent prepared be the liquid of a kind of non-strong acid, non-highly basic by the way that fatty acid and lithium hydroxide is added
State soil-solidified-agent, and when pH value is close neutral, vegetable and animals oils are highly effective to hydrogen ion concentration is improved, and are applied to the soil body
When, vegetable and animals oils concentration reduces, and when encountering hydrone in soil, concentration is further reduced.The reduction of hydrogen ion concentration can be effective
Ground promotes the infiltration of other ions in clay mineral structure, and in clay lattice, cyclic annular anion and aluminium ion reaction lead to crystalline substance
The disintegration of lattice structure becomes band hydrogen ion clay, and the aluminium ion in hydrogen ion and soil body lattice, which further exchanges, forms aluminium ion
Clay, intensity are further enhanced, due to the weaker lithium ion exchanged of hydrogen ion discord, at the beginning of clay cannot restore it again
Beginning state, this variation is permanent, to enhance the water stability of curing agent prepared by the present invention.
2, present invention adds the organic substances such as straw, shell, sawdust, waste paper, are on the one hand allowed to play reinforcement work
With improving the compression strength of the soil body, reduce settling amount；On the other hand soil body compactness is improved, the anti-permeability performance of the soil body is improved.
3, the present invention is effectively utilized waste straw, shell, sawdust, waste paper etc., this not only realizes waste
It is can be recycled, turn waste into wealth, and to preserving the ecological environment, implement sustainable development idea with far-reaching practical meaning
Justice.Reduce the production cost of curing agent and the project cost of road construction again simultaneously.
4, the main function of superfine silicon dioxide is that compensating the soil body shrinks, and inhibits cracking.
5, also curable: 1. various metals except the curable a variety of different soil bodys of soil-solidified-agent prepared by the present invention
Tailing, especially iron tailings, aluminium tailing (red mud), manganese slag etc.；2. part nonmetallic tailings such as phosphorus tailing, mirabilite tailing etc.；③
The big solid waste in city three: residue and flying dust i.e. after the smelly mud of urban building waste, municipal wastewater and consumer waste incineration；4. greasy filth,
Sludge, landwaste；5. Polluted Soil, including heavy metal polluted soil and part chemical pollution soil.
6, environmentally friendly soil-solidified-agent prepared by the present invention is nontoxic non-corrosive, and the road built can be immediately after crushing
It restores abandoned land to cultivation.It is existing to be conducive to save and substitute Resources, alleviate environmental problem outstanding, is more advantageous to the hair for promoting circular economy
Exhibition.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is test specimen schematic diagram used in detection test；
Fig. 2 attached drawing is non-burning brick schematic diagram prepared by embodiment 6；
Fig. 3 attached drawing is that safety and environmental protection tests schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
A kind of environmental protection soil-solidified-agent, comprising: 30 parts of straw, 25 parts of vegetable oil, 1 part of calcium lignosulfonate, hydrogen-oxygen
Change 18 parts of lithium, 3 parts of superfine silicon dioxide, 12 parts of liquid phosphoric acid aluminum dihydrogen.
It prepares in accordance with the following steps:
(1) calcium lignosulfonate, lithium hydroxide are added in 50 DEG C of distilled water, stir and alkaline neutralizer is made；
(2) fatty acid is mixed with liquid phosphoric acid aluminum dihydrogen, is heated to 55 DEG C of stirring 2h, fatty acid dilution liquid is made；
(3) organic substance is pulverized, is added in fatty acid dilution liquid, is heated to 135 DEG C of stirring 3h；
(4) alkaline neutralizer is added in mixture made from step (3), is stirred evenly, superfine silicon dioxide is added, surpassed
Sound stirs 1h to get environmentally friendly soil-solidified-agent.
Embodiment 2
A kind of environmental protection soil-solidified-agent, comprising: 30 parts of shell, 20 parts of animal oil, 2 parts of calcium lignosulfonate, lithium hydroxide
15 parts, 5 parts of superfine silicon dioxide, 10 parts of liquid phosphoric acid aluminum dihydrogen.
It prepares in accordance with the following steps:
(1) calcium lignosulfonate, lithium hydroxide are added in 60 DEG C of distilled water, stir and alkaline neutralizer is made；
(2) fatty acid is mixed with liquid phosphoric acid aluminum dihydrogen, is heated to 50 DEG C of stirring 1.5h, fatty acid dilution liquid is made；
(3) organic substance is pulverized, is added in fatty acid dilution liquid, is heated to 130 DEG C of stirring 4h；
(4) alkaline neutralizer is added in mixture made from step (3), is stirred evenly, superfine silicon dioxide is added, surpassed
Sound stirs 0.5h to get environmentally friendly soil-solidified-agent.
Embodiment 3
A kind of environmental protection soil-solidified-agent, comprising: 35 parts of sawdust, 30 parts of animal oil, 3 parts of calcium lignosulfonate, lithium hydroxide
12 parts, 1 part of superfine silicon dioxide, 8 parts of liquid phosphoric acid aluminum dihydrogen.
It prepares in accordance with the following steps:
(1) calcium lignosulfonate, lithium hydroxide are added in 70 DEG C of distilled water, stir and alkaline neutralizer is made；
(2) fatty acid is mixed with liquid phosphoric acid aluminum dihydrogen, is heated to 60 DEG C of stirring 1h, fatty acid dilution liquid is made；
(3) organic substance is pulverized, is added in fatty acid dilution liquid, is heated to 150 DEG C of stirring 3h；
(4) alkaline neutralizer is added in mixture made from step (3), is stirred evenly, superfine silicon dioxide is added, surpassed
Sound stirs 1h to get environmentally friendly soil-solidified-agent.
Embodiment 4
A kind of environmental protection soil-solidified-agent, comprising: 50 parts of waste paper, 26 parts of vegetable oil, 4 parts of calcium lignosulfonate, lithium hydroxide
20 parts, 3 parts of superfine silicon dioxide, 10 parts of liquid phosphoric acid aluminum dihydrogen.
It prepares in accordance with the following steps:
(1) calcium lignosulfonate, lithium hydroxide are added in 50 DEG C of distilled water, stir and alkaline neutralizer is made；
(2) fatty acid is mixed with liquid phosphoric acid aluminum dihydrogen, is heated to 55 DEG C of stirring 2h, fatty acid dilution liquid is made；
(3) organic substance is pulverized, is added in fatty acid dilution liquid, is heated to 140 DEG C of stirring 5h；
(4) alkaline neutralizer is added in mixture made from step (3), is stirred evenly, superfine silicon dioxide is added, surpassed
Sound stirs 2h to get environmentally friendly soil-solidified-agent.
Embodiment 5
A kind of environmental protection soil-solidified-agent, comprising: 20 parts of sawdust, 20 parts of waste paper, 20-30 parts of mineral oil, calcium lignosulfonate 3
Part, 16 parts of lithium hydroxide, 3 parts of superfine silicon dioxide, 10 parts of liquid phosphoric acid aluminum dihydrogen.
It prepares in accordance with the following steps:
(1) calcium lignosulfonate, lithium hydroxide are added in 60 DEG C of distilled water, stir and alkaline neutralizer is made；
(2) fatty acid is mixed with liquid phosphoric acid aluminum dihydrogen, is heated to 55 DEG C of stirring 1.5h, fatty acid dilution liquid is made；
(3) organic substance is pulverized, is added in fatty acid dilution liquid, is heated to 140 DEG C of stirring 4h；
(4) alkaline neutralizer is added in mixture made from step (3), is stirred evenly, superfine silicon dioxide is added, surpassed
Sound stirs 1h to get environmentally friendly soil-solidified-agent.
Embodiment 6
As shown in Fig. 2, be fabricated to environmentally friendly soil-solidified-agent prepared by embodiment 5 with building waste it is non-burning brick, through examining,
Meet the requirement in GB5101-2007 " fired common brick " to performances such as compression strength, frost resistance, weathering resistances, belongs to A class dress
It repairs, construction material.
Comparative example 1
Curing agent is used as using ordinary portland cement 32.5, ordinary portland cement 32.5 is the current country common one
Kind construction material.
Experiment test
(1) unconfined compressive strength, water stability detection
As shown in Figure 1, the effect of in order to illustrate soil-solidified-agent of the present invention, the solidification that will be prepared in above-described embodiment 1-5
Curing agent in agent and comparative example 1 carries out soil fixation, then carries out 7 days unconfined compressive strengths to compacted soil, water is stablized
The measurement of property, the results are shown in Table 1.
In said determination test, the soil to be solidified of selection is Jining City in Shandong Province slity soil, soil reinforcement method:
The soil sample with construction is chemically examined first, curing agent proportion design is carried out according to result of laboratory test, then carries out levelling of the land, is dissipated
Cloth curing agent is mixed, rolls, shaping, keeping construction site smooth rolling.Test specimen is diameter × height=50mm × 100mm
Cylindrical body.
Unconfined compressive strength refers to sample under the conditions of no lateral pressure, resists the ultimate strength of axial compressive force.Three
In shaft experiment, in the case where any lateral pressure is not added, axial compressive force is applied to cylindrical specimens, until sample failure by shear
Until.Axial compressive force when sample destroys indicates with qu, as unconfined compressive strength.
Water stability coefficient is the main indicator for measuring water stability, and water stability coefficient is bigger, then water stability is better,
Therefore mainly the full water compression strength of different larval instar is measured with dry compression strength in the water stability comparative test, and
Calculate corresponding water stability coefficient.
Table 1
(2) safety and environmental protection detects
As shown in figure 3, the test specimen that the environmentally friendly soil-solidified-agent of above-mentioned experiment prepared by embodiment 1-5 is reinforced is in fish
It is impregnated 3 months in cylinder, shoal of fish survival rate 100% has no adverse reaction, and test specimen does not dismiss, is non-swelling.
Environmental protection soil-solidified-agent prepared by the present invention is a kind of environment-friendly energy-saving by a variety of organic and inorganic materials synthesis
Engineering material.Curing agent and soil are uniformly mixed in work progress, and the spacing under impressed pressure effect between soil particle becomes
It is small, and a series of physical chemical reaction occurs with curing agent, to reach gap, improvement soil particle surface characteristic between filler particles
With the effect for generating gelatinous mass cohesion soil.
Environmental protection soil-solidified-agent disclosed by the invention is extensive with raw material sources, is available locally, construction technology letter
Single, a variety of advantages such as project cost is low.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (4)
1. a kind of environmental protection soil-solidified-agent, which is characterized in that according to parts by weight, including following component: 30-50 parts of organic matter,
20-30 parts of fatty acid, 1-5 parts of calcium lignosulfonate, 12-20 parts of lithium hydroxide, 1-5 parts of superfine silicon dioxide, liquid phosphoric acid two
8-12 parts of hydrogen aluminium.
2. a kind of environmentally friendly soil-solidified-agent according to claim 1, which is characterized in that the organic matter be straw,
One of shell, sawdust, waste paper are a variety of.
3. a kind of environmentally friendly soil-solidified-agent according to claim 1 or 2, which is characterized in that the fatty acid is vegetable oil
Or animal oil.
4. a kind of preparation method of environmentally friendly soil-solidified-agent as claimed in claim 3, which comprises the following steps:
(1) calcium lignosulfonate, lithium hydroxide are added in 50-70 DEG C of distilled water, stir and alkaline neutralizer is made；
(2) fatty acid is mixed with liquid phosphoric acid aluminum dihydrogen, is heated to 50-60 DEG C of stirring 1-2h, fatty acid dilution liquid is made；
(3) organic substance is pulverized, is added in fatty acid dilution liquid, is heated to 130-150 DEG C of stirring 3-5h；
(4) alkaline neutralizer is added in mixture made from step (3), is stirred evenly, superfine silicon dioxide is added, ultrasound is stirred
0.5-2h is mixed to get the environmentally friendly soil-solidified-agent.
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| CN113105898A (en) * | 2021-02-25 | 2021-07-13 | 南京工程学院 | Soil stabilizer and preparation method and application thereof |
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| CN114262612A (en) * | 2021-12-10 | 2022-04-01 | 江苏路邦道昇新材料科技有限公司 | Bio-based high water resistance liquid soil curing agent and preparation method thereof |
| US20220143571A1 (en) * | 2020-02-28 | 2022-05-12 | Shandong University | Red mud-based sewage treatment agent and preparation method thereof, red mud-based ceramsite concrete and preparation method thereof, and applications |
| CN116891749A (en) * | 2023-07-13 | 2023-10-17 | 中科聚垚环保新材料科技有限公司 | Waste engine oil soil body modifier and preparation method thereof |
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| CN114262612A (en) * | 2021-12-10 | 2022-04-01 | 江苏路邦道昇新材料科技有限公司 | Bio-based high water resistance liquid soil curing agent and preparation method thereof |
| CN114181709A (en) * | 2021-12-27 | 2022-03-15 | 常州工学院 | Liquid soil curing agent for improving water resistance and preparation method thereof |
| CN114181710A (en) * | 2021-12-28 | 2022-03-15 | 中国科学院烟台海岸带研究所 | Saline-alkali soil curing agent and preparation method thereof |
| CN114181710B (en) * | 2021-12-28 | 2024-01-09 | 中国科学院烟台海岸带研究所 | Saline-alkali soil curing agent and preparation method thereof |
| CN116891749A (en) * | 2023-07-13 | 2023-10-17 | 中科聚垚环保新材料科技有限公司 | Waste engine oil soil body modifier and preparation method thereof |
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