CN109354429B - Manufacturing method of sand consolidation agent - Google Patents
Manufacturing method of sand consolidation agent Download PDFInfo
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- CN109354429B CN109354429B CN201811405697.5A CN201811405697A CN109354429B CN 109354429 B CN109354429 B CN 109354429B CN 201811405697 A CN201811405697 A CN 201811405697A CN 109354429 B CN109354429 B CN 109354429B
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- argillaceous
- fine sand
- powder
- sand
- consolidation agent
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00732—Uses not provided for elsewhere in C04B2111/00 for soil stabilisation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a manufacturing method of a sandy soil consolidation agent, which comprises the steps of preheating and drying fine sand of argillaceous powder, then putting the argillaceous powder into a calcining furnace, calcining for two hours at 1050-1150 ℃, then rapidly cooling (the time of cooling to room temperature is not more than 1 hour), and grinding to fine powder of 200-300 meshes for later use; weighing 70-80 wt% of the calcined argillaceous powder fine sand powder, 5-10 wt% of mineral powder and 10-25 wt% of cement, and uniformly mixing to obtain a finished sand consolidation agent. The invention has the advantages that the raw materials can be obtained from local materials, the transportation cost is saved, the reasonable utilization of the muddy fine sand in the middle and lower reaches of the yellow river can also slow down the siltation of the riverbed in the middle and lower reaches; the preparation method is simple, green, energy-saving and environment-friendly; meanwhile, the consolidation agent prepared by the invention can be mixed with medium-fine sand in the deposited silt in proportion to prepare a prefabricated product, and the comprehensive utilization of raw materials can generate good social and economic benefits.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering and building materials, in particular to a manufacturing method of a sandy soil consolidation agent.
Background
The sand consolidation agent can be widely applied to the filling and the reinforcement of caves in mining areas, the filling of foundation pits of building foundations, the filling of dam bodies and slope protection reinforcements in hydraulic engineering, and the foundation construction of goods yard foundations, pavement foundations and the like. The existing consolidation agent mostly adopts lime and cement, and can achieve the strength required by design, but has poor water resistance, seepage prevention and corrosion resistance, slow solidification, low early strength and large consumption of cement resources. And the multi-model high-strength high-water-resistance soil consolidation agent which is prepared by adopting sand as fine aggregate and pebbles as coarse aggregate and is suitable for different consolidation objects has good effect but high production cost.
The water flow at the garden opening of the yellow river basin is slow, and silt is deposited on the riverbed, so that the riverbed is lifted, and the flood control safety is influenced. The deposited silt is mainly argillaceous fine sand, and the content of clay particles gradually increases from the middle to the downstream. At present, part of the grit chambers are deposited all year round, and the excavated silt has no place to be stacked, so that if the silt can be developed and utilized to become a building material for engineering, good social benefit and economic benefit can be generated.
Disclosure of Invention
The invention aims to provide a method for preparing a sandy soil consolidation agent by using fine silt of yellow river argillaceous powder, which is simple and easy to implement, green, energy-saving and environment-friendly and has good social and economic benefits.
In order to achieve the purpose, the invention can adopt the following technical scheme:
the invention relates to a method for manufacturing a sand consolidation agent, which is characterized by comprising the following steps: the method comprises the following steps:
firstly, preheating and drying argillaceous fine sand, then putting the argillaceous fine sand into a calcining furnace, calcining for two hours at 1050-1150 ℃, then rapidly cooling (the time for cooling to room temperature is not more than 1 hour), and grinding to 200-300-mesh fine powder for later use;
and secondly, weighing 70-80 wt% of the calcined argillaceous powder fine sand powder prepared in the first step, 5-10 wt% of the mineral powder and 10-25 wt% of the cement, and uniformly mixing to obtain a finished sand consolidation agent.
The argillaceous fine sand is sediment at the garden mouth of the yellow river basin, and mainly comprises quartz (the content is more than 45%), plagioclase feldspar and potassium feldspar; the argillaceous component is clay particles, and the content is generally between 5 and 25 percent.
If the actual measurement shows that the clay particle content in the argillaceous fine sand is lower than 10%, 5-10% of clay particles need to be doped firstly, and the clay particles and the argillaceous fine sand are uniformly mixed and then are subjected to calcination treatment.
The mineral powder is S95 mineral powder obtained by crushing alkaline rock (such as limestone). The cement can be P.O 42.5 cement, cement clinker, 52.5-grade portland cement or 52.5-grade ordinary portland cement.
When products (such as preparing hexagonal hollow bricks for ecological slope protection, diversion trenches for drainage ditches, hexagonal blocks for ecological slope protection and the like) are prefabricated, medium fine sand and tap water (or a water source meeting the requirement of concrete mixing water) are added into the solidifying agent prepared by the method according to a proper proportion, and the mixture is stirred and vibrated at normal temperature to be molded to obtain the high-strength prefabricated product.
The invention has the advantages that the raw materials can be obtained from local materials, the transportation cost is saved, the reasonable utilization of the muddy fine sand in the middle and lower reaches of the yellow river can also slow down the siltation of the riverbed in the middle and lower reaches; the preparation method is simple, green, energy-saving and environment-friendly; meanwhile, the consolidation agent prepared by the invention can be mixed with medium-fine sand in the deposited silt in proportion to prepare a prefabricated product, and the comprehensive utilization of raw materials can generate good social and economic benefits.
Detailed Description
The method is suitable for the middle and lower reaches of the yellow river.
The present invention is described in more detail below with reference to specific examples to facilitate understanding for those skilled in the art.
Example 1 preparation of hexagonal hollow brick for ecological slope protection
The hexagonal hollow brick for ecological slope protection is mainly used as a material for slope protection of high-speed rails, highways and water conservancy dams, and the root system of a plant growing through the hollow part of the brick body is stable and sloping. The specific method comprises the following steps:
1. preparation of consolidation agent
Firstly, testing a argillaceous fine sand raw material obtained from a riverbed, determining that the content of quartz is 55% and the content of clay particles is 13%, and proving that the argillaceous fine sand raw material meets the use requirement; preheating and drying the argillaceous fine sand raw material in a drying furnace, then feeding the argillaceous fine sand raw material into a calcining furnace, calcining the argillaceous fine sand raw material for two hours at the high temperature of 1050-1150 ℃, cooling the argillaceous fine sand raw material to the room temperature within 1 hour, and feeding the argillaceous fine sand raw material into a grinding machine to grind the argillaceous fine sand raw material into 200-300 meshes of fine powder for later use;
and step two, weighing 80 weight percent of fine sand powder of the calcined argillaceous powder prepared in the step one, 10 weight percent of mineral powder and 10 weight percent of P.O 42.5 cement, and uniformly mixing to obtain a finished sand consolidation agent.
2. Preparation of hexagonal hollow brick for ecological slope protection
And (3) putting the prepared finished sand consolidation agent and medium-fine sand (the fineness modulus is 1.7-3.0) into a stirrer according to the ratio of 40% to 60% to stir uniformly, then adding normal-temperature water accounting for 13-14% of the total amount of the materials to continue stirring for 90s, vibrating and molding in a special mold, and naturally curing for 28 days to obtain the finished product. The test shows that the strength of the finished brick is 12.1 MPa.
Example 2 preparation of drainage ditch guiding gutter
The drainage ditch guide groove is suitable for drainage ditches in embankment engineering and river ecological management engineering, and is mainly used for discharging surface water such as rainwater.
1. Preparation of consolidation agent
Firstly, testing a argillaceous fine sand raw material obtained from a riverbed, determining that the content of quartz is 50% and the content of clay particles is 11%, and proving that the argillaceous fine sand raw material meets the use requirement; preheating and drying the argillaceous fine sand raw material in a drying furnace, then feeding the argillaceous fine sand raw material into a calcining furnace, calcining the argillaceous fine sand raw material for two hours at the high temperature of 1050-1150 ℃, cooling the argillaceous fine sand raw material to the room temperature within 1 hour, and feeding the argillaceous fine sand raw material into a grinding machine to grind the argillaceous fine sand raw material into 200-300 meshes of fine powder for later use;
and step two, weighing 75 percent by weight of the calcined argillaceous powder fine sand powder prepared in the step one, 5 percent by weight of the mineral powder and 20 percent by weight of the P.O 42.5 cement, and uniformly mixing to obtain a finished sand consolidation agent.
2. Preparation of drainage ditch diversion trench
And (3) putting the prepared finished sand consolidation agent and medium-fine sand (the fineness modulus is 1.7-3.0) into a stirrer according to the ratio of 40% to 60% to stir uniformly, then adding normal-temperature water accounting for 13-14% of the total amount of the materials to continue stirring for 90s, vibrating and molding in a special mold, and naturally curing for 28 days to obtain the finished product. Through tests, the strength of the finished drainage ditch diversion trench is 14.7MPa, and the anti-permeability grade is W4.
Example 3 preparation of ecological slope protection hexagonal block
The ecological slope protection hexagonal block is suitable for protecting the river ecological management engineering embankment and enhancing the flood control capability of the embankment.
1. Preparation of consolidation agent
Firstly, testing a argillaceous fine sand raw material obtained from a riverbed, determining that the content of quartz is 48% and the content of clay particles is 17%, and proving that the argillaceous fine sand raw material meets the use requirement; preheating and drying the argillaceous fine sand raw material in a drying furnace, then feeding the argillaceous fine sand raw material into a calcining furnace, calcining the argillaceous fine sand raw material for two hours at the high temperature of 1050-1150 ℃, cooling the argillaceous fine sand raw material to the room temperature within 1 hour, and feeding the argillaceous fine sand raw material into a grinding machine to grind the argillaceous fine sand raw material into 200-300 meshes of fine powder for later use;
and step two, weighing 70 weight percent of fine sand powder of the calcined argillaceous powder prepared in the step one, 10 weight percent of mineral powder and 20 weight percent of P.O 42.5 cement, and uniformly mixing to obtain a finished sand consolidation agent.
2. Preparation of ecological slope protection hexagonal block
And (3) putting the prepared finished sand consolidation agent and medium-fine sand (the fineness modulus is 1.7-3.0) into a stirrer according to the ratio of 40% to 60% to stir uniformly, then adding normal-temperature water accounting for 13-14% of the total amount of the materials to continue stirring for 90s, vibrating and molding in a special mold, and naturally curing for 28 days to obtain the finished product. The test shows that the strength of the finished hexagonal block is 15.9MPa, and the impermeability grade is W6.
During on-site preparation, the clay content in the argillaceous fine sand raw material is detected, and the dosage of the added calcined argillaceous fine sand, mineral powder and cement is properly adjusted according to the different clay contents so as to meet the requirements. If the content of the clay is detected to be less than 10%, a proper amount (5-10%) of clay particles (clay in a grit chamber can be adopted) needs to be added, and the clay particles and the argillaceous fine sand are uniformly mixed and then are calcined.
The cement used for preparing the consolidation agent in examples 1 to 3 is P.O 42.5 cement, for example, the consolidation agent is prepared by cement clinker, 52.5-grade portland cement or 52.5-grade ordinary portland cement, and the strength of the prepared product is higher.
The above description is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any insubstantial modifications made by the present invention shall fall within the scope of the invention.
Claims (4)
1. A manufacturing method of a sand consolidation agent is characterized by comprising the following steps: the method comprises the following steps:
firstly, preheating and drying argillaceous fine sand, then putting the argillaceous fine sand into a calcining furnace, calcining for two hours at 1050-1150 ℃, then cooling to room temperature within one hour, and grinding to 200-300-mesh fine powder for later use;
the main components of the argillaceous silty fine sand are quartz, plagioclase feldspar and potassium feldspar, the argillaceous component is clay particles, and the content of the clay particles is 5-10%;
when the clay particle content in the argillaceous fine sand is lower than 10%, 5-10% of clay particles need to be doped firstly, and after the clay particles are uniformly mixed, calcination treatment is carried out;
and secondly, weighing 70-80 wt% of the calcined argillaceous powder fine sand powder prepared in the first step, 5-10 wt% of the mineral powder and 10-25 wt% of the cement, and uniformly mixing to obtain a finished sand consolidation agent.
2. The method for manufacturing the sandy soil consolidating agent according to claim 1, wherein: the fine silt is the sediment at the garden mouth of the yellow river basin.
3. The method for producing the sand consolidation agent according to claim 1 or 2, characterized in that: the mineral powder is S95 mineral powder obtained by crushing alkaline rocks.
4. The method for producing the sand consolidation agent according to claim 1 or 2, characterized in that: the cement is P.O 42.5 cement, cement clinker, 52.5 grade portland cement or 52.5 grade ordinary portland cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811405697.5A CN109354429B (en) | 2018-11-23 | 2018-11-23 | Manufacturing method of sand consolidation agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811405697.5A CN109354429B (en) | 2018-11-23 | 2018-11-23 | Manufacturing method of sand consolidation agent |
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| Publication Number | Publication Date |
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| CN109354429A CN109354429A (en) | 2019-02-19 |
| CN109354429B true CN109354429B (en) | 2021-08-13 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747809A (en) * | 2019-10-22 | 2020-02-04 | 张金良 | Integrated silt dam without management and protection and construction method thereof |
| CN111548102B (en) * | 2020-06-29 | 2022-03-18 | 郑州大学 | Mortar and preparation method and application thereof |
| CN112777984B (en) * | 2021-01-08 | 2022-05-06 | 黄河勘测规划设计研究院有限公司 | Curing agent for damming material of silty dam in loess region |
| CN113026676B (en) * | 2021-03-25 | 2022-04-19 | 黄河勘测规划设计研究院有限公司 | Construction method of non-management and protection integrated check dam |
| CN113603431B (en) * | 2021-09-15 | 2022-04-19 | 黄河勘测规划设计研究院有限公司 | Preparation method of waterproof toughened sandy soil consolidation agent |
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|---|---|---|---|---|
| CN1887763A (en) * | 2006-07-28 | 2007-01-03 | 北京蓝资凝石科技有限公司 | Pretreatment of Yellow River silt, concretion cementing material obtained therewith and their prepn |
| KR20130131108A (en) * | 2012-05-23 | 2013-12-03 | 스키너스 주식회사 | Construction method for foundation using soil stabilizer |
| CN103880308A (en) * | 2014-02-19 | 2014-06-25 | 江苏坤泽科技股份有限公司 | Stone powder material curing agent and preparation method thereof |
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2018
- 2018-11-23 CN CN201811405697.5A patent/CN109354429B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887763A (en) * | 2006-07-28 | 2007-01-03 | 北京蓝资凝石科技有限公司 | Pretreatment of Yellow River silt, concretion cementing material obtained therewith and their prepn |
| KR20130131108A (en) * | 2012-05-23 | 2013-12-03 | 스키너스 주식회사 | Construction method for foundation using soil stabilizer |
| CN103880308A (en) * | 2014-02-19 | 2014-06-25 | 江苏坤泽科技股份有限公司 | Stone powder material curing agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 黄河粉细砂固结剂试验研究;吴向东等;《第六集"全国先进混凝土技术及工程应用"研讨会论文集》;20180730;第111-115页 * |
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Address after: 450003 No. 109 Jinshui Road, Jinshui District, Henan, Zhengzhou Applicant after: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. Address before: 450003 No. 109 Jinshui Road, Jinshui District, Henan, Zhengzhou Applicant before: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. |
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