CN111978006A - Novel grouting additive - Google Patents
Novel grouting additive Download PDFInfo
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- CN111978006A CN111978006A CN202010720508.4A CN202010720508A CN111978006A CN 111978006 A CN111978006 A CN 111978006A CN 202010720508 A CN202010720508 A CN 202010720508A CN 111978006 A CN111978006 A CN 111978006A
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- agent
- expanding agent
- raw materials
- additive
- novel grouting
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the technical field of grouting material manufacturing, and particularly discloses a novel grouting additive, which is provided with the following scheme that the grouting additive comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine micro-beads, 10% of kaolin and 34.5% of mineral powder; the specific preparation method of the novel grouting additive comprises the following steps of equipment treatment and proportioning: cleaning used container equipment with tap water, washing with deionized water once, disinfecting with 75% ethanol solution in volume fraction, washing with deionized water, weighing the raw materials according to the parts by weight, mixing: hydroxypropyl methylcellulose. The grouting additive disclosed by the invention can reduce the bleeding property and the dry shrinkage property of a grouting material, the size reduction degree of the grouting material is small, and the plugging effect of the water-guiding fracture is good.
Description
Technical Field
The invention relates to the technical field of grouting material manufacturing, in particular to a novel grouting additive.
Background
Concrete is one of the most important civil engineering materials of the present generation. The artificial stone is prepared by a cementing material, granular aggregate (also called aggregate), water, an additive and an admixture which are added if necessary according to a certain proportion, and is formed by uniformly stirring, compacting, forming, curing and hardening. The concrete has the characteristics of rich raw materials, low price and simple production process, so that the consumption of the concrete is increased more and more. In the building engineering, the grouting technology can be divided into two categories of static pressure grouting and high pressure jet grouting. However, the grouting technology can be divided into four types, namely osmotic grouting, split grouting, compaction grouting and jet grouting, according to the action mechanism of the grout on the soil body, the grouting pressure under geological conditions, the movement form of the grout, the substitution mode and the like.
The field of grouting material additives mainly focuses on research on thinning the granularity of grouting materials, reducing the dry shrinkage and bleeding property and shortening the solidification time. Most gate additives, however, only focus on the optimization of a single property. The existing grouting material is mainly single-fluid grout, namely grout prepared by mixing common concrete, superfine concrete and water. The granularity of the common single-fluid slurry is relatively thick, and the fine water flowing cracks cannot be removed under relatively small grouting pressure; the solidification time of the common single grout is long, and the construction time of the whole grouting process is correspondingly prolonged; the common single grout shrinks greatly after being solidified, and the grouting effect is not good. And the aquifers of the four vertical shafts of the gold mine of the yarn ridge are mainly fracture water, the grouting pressure rises quickly, the amount of injected grout is small, the grouting period is long, and the grouting effect is poor due to the solidification and drying shrinkage of the grout after grouting. Therefore, the invention provides a novel grouting additive.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a novel grouting additive.
In order to achieve the purpose, the invention adopts the following technical scheme:
a novel grouting additive comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine micro-beads, 10% of kaolin and 34.5% of mineral powder; the specific preparation method of the novel grouting additive comprises the following steps:
s1, equipment treatment and batching: cleaning the used container equipment with tap water, washing with deionized water once, disinfecting with 75% ethanol solution by volume, washing with deionized water for later use, and weighing the raw materials according to the parts by weight;
s2, mixing: sequentially adding 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine microsphere, 10% of kaolin and mineral powder into a stirring pot, stirring and heating to 80-85 ℃ until all the raw materials are dissolved uniformly, stirring uniformly in the stirring pot, sampling and inspecting after uniform dispersion, and discharging after qualification to obtain the novel grouting additive;
s3, filtering and standing: filtering the qualified novel grouting additive by a fine filter screen, placing the qualified novel grouting additive in a standing room, standing for 22-26 hours, and carrying out semi-finished product inspection on the solution after standing;
s4, packaging and warehousing: and (3) filling the qualified solution of the semi-finished product, sterilizing the packaging material before filling, inspecting the outer tube of the filled container after filling, packaging, performing QC (quality control) sample reservation on the finished product after packaging, inspecting the finished product, and finally warehousing the finished product.
Preferably, the feed comprises the following raw materials in parts by weight: 0.9% of hydroxypropyl methyl cellulose, 10.1% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine microspheres, 10% of kaolin and 34.5% of mineral powder.
Preferably, the feed comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 1.5% of polycarboxylic acid water reducing agent, 1.5% of early strength agent, 41% of superfine microspheres, 10% of kaolin and 34.5% of mineral powder.
Preferably, the feed comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine micro-beads, 12% of kaolin and 32.5% of mineral powder
Preferably, the feed comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 35% of superfine microspheres, 11% of kaolin and 36.5% of mineral powder
Preferably, the feed comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 1% of plastic expanding agent, 1.5% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine micro-beads, 10% of kaolin and 34.5% of mineral powder
Preferably, in S2, mixing: the novel grouting additive is prepared by sequentially adding mixed raw materials of 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine microspheres, 10% of kaolin and mineral powder into a stirring pot, stirring and heating to 83 ℃ until all the raw materials are dissolved uniformly, stirring uniformly in the stirring pot, sampling and inspecting after uniform dispersion, and discharging after qualification to obtain the novel grouting additive.
Preferably, in S4, the packaging material needs to be sterilized before filling.
Compared with the prior art, the invention has the beneficial effects that: the hydroxypropyl methyl cellulose is added to retain water, so that the bleeding property is reduced; the addition of the plastic expanding agent reduces plastic shrinkage, and after the material is added into single grout, the solidification time of the grouting material can be shortened, so that the grouting period is shortened; after the material is added, the granularity of the grouting material can be thinned, the grouting material can be injected into a fine water flowing crack, and a water flowing channel is sealed; after the material is added, the bleeding property of the grouting material is reduced, the dry shrinkage property is reduced, the size reduction degree of the grouting material is small, and the blocking effect of the water flowing crack is good.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the contents in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
A novel grouting additive comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine micro-beads, 10% of kaolin and 34.5% of mineral powder; the specific preparation method of the novel grouting additive comprises the following steps:
s1, equipment treatment and batching: cleaning the used container equipment with tap water, washing with deionized water once, disinfecting with 75% ethanol solution by volume, washing with deionized water for later use, and weighing the raw materials according to the parts by weight;
s2, mixing: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine microspheres, 10% of kaolin and mineral powder are sequentially added into a stirring pot, the stirring and heating are carried out until all the raw materials are dissolved uniformly, the stirring is carried out uniformly in the stirring pot, sampling inspection is carried out after uniform dispersion, and a novel grouting additive is obtained after qualified discharge;
s3, filtering and standing: sleeving a fine filter screen on the qualified novel grouting additive, filtering, placing the qualified grouting additive in a standing room, standing for 22 hours, and carrying out semi-finished product inspection on the solution after standing;
s4, packaging and warehousing: and (3) filling the qualified solution of the semi-finished product, sterilizing the packaging material before filling, inspecting the outer tube of the filled container after filling, packaging, performing QC (quality control) sample reservation on the finished product after packaging, inspecting the finished product, and finally warehousing the finished product.
Example two
A novel grouting additive comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine micro-beads, 10% of kaolin and 34.5% of mineral powder; the specific preparation method of the novel grouting additive comprises the following steps:
s1, equipment treatment and batching: cleaning the used container equipment with tap water, washing with deionized water once, disinfecting with 75% ethanol solution by volume, washing with deionized water for later use, and weighing the raw materials according to the parts by weight;
s2, mixing: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine microspheres, 10% of kaolin and mineral powder are sequentially added into a stirring pot, the stirring and heating are carried out until all the raw materials are dissolved uniformly, the stirring is carried out uniformly in the stirring pot, sampling inspection is carried out after uniform dispersion, and a novel grouting additive is obtained after qualified discharge;
s3, filtering and standing: filtering the qualified novel grouting additive by a fine filter screen, placing the qualified novel grouting additive in a standing room, standing for 24 hours, and carrying out semi-finished product inspection on the solution after standing;
s4, packaging and warehousing: and (3) filling the qualified solution of the semi-finished product, sterilizing the packaging material before filling, inspecting the outer tube of the filled container after filling, packaging, performing QC (quality control) sample reservation on the finished product after packaging, inspecting the finished product, and finally warehousing the finished product.
EXAMPLE III
A novel grouting additive comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine micro-beads, 10% of kaolin and 34.5% of mineral powder; the specific preparation method of the novel grouting additive comprises the following steps:
s1, equipment treatment and batching: cleaning the used container equipment with tap water, washing with deionized water once, disinfecting with 75% ethanol solution by volume, washing with deionized water for later use, and weighing the raw materials according to the parts by weight;
s2, mixing: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine microspheres, 10% of kaolin and mineral powder are sequentially added into a stirring pot, the stirring and heating are carried out until all the raw materials are dissolved uniformly, the stirring is carried out uniformly in the stirring pot, sampling inspection is carried out after uniform dispersion, and a novel grouting additive is obtained after qualified discharge;
s3, filtering and standing: filtering the qualified novel grouting additive by a fine filter screen, placing the qualified novel grouting additive in a standing room, standing for 26 hours, and carrying out semi-finished product inspection on the solution after standing;
s4, packaging and warehousing: and (3) filling the qualified solution of the semi-finished product, sterilizing the packaging material before filling, inspecting the outer tube of the filled container after filling, packaging, performing QC (quality control) sample reservation on the finished product after packaging, inspecting the finished product, and finally warehousing the finished product.
The additives obtained in the examples were added to the slurry and the slurry without additives was used as a reference for comparison to observe bleeding and drying shrinkage, and the following table was obtained
| Sample (I) | Example one | Example one | Example one | Without additives |
| Bleeding property | Is smaller | Small | Is smaller | Big (a) |
| Drying shrinkage property | Is smaller | Small | Is smaller | Big (a) |
From the above table, it can be seen that the bleeding property and the dry shrinkage property of grouting can be greatly reduced by adding the additive of the invention.
When the invention is used, the hydroxypropyl methyl cellulose is added to preserve water and reduce bleeding property; the addition of the plastic expanding agent reduces plastic shrinkage, and after the material is added into single grout, the solidification time of the grouting material can be shortened, so that the grouting period is shortened; after the material is added, the granularity of the grouting material can be thinned, the grouting material can be injected into a fine water flowing crack, and a water flowing channel is sealed; after the material is added, the bleeding property of the grouting material is reduced, the dry shrinkage property is reduced, the size reduction degree of the grouting material is small, and the blocking effect of the water flowing crack is good.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The novel grouting additive is characterized by comprising the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine micro-beads, 10% of kaolin and 34.5% of mineral powder; the specific preparation method of the novel grouting additive comprises the following steps:
s1, equipment treatment and batching: cleaning the used container equipment with tap water, washing with deionized water once, disinfecting with 75% ethanol solution by volume, washing with deionized water for later use, and weighing the raw materials according to the parts by weight;
s2, mixing: sequentially adding 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine microsphere, 10% of kaolin and mineral powder into a stirring pot, stirring and heating to 80-85 ℃ until all the raw materials are dissolved uniformly, stirring uniformly in the stirring pot, sampling and inspecting after uniform dispersion, and discharging after qualification to obtain the novel grouting additive;
s3, filtering and standing: filtering the qualified novel grouting additive by a fine filter screen, placing the qualified novel grouting additive in a standing room, standing for 22-26 hours, and carrying out semi-finished product inspection on the solution after standing;
s4, packaging and warehousing: and (3) filling the qualified solution of the semi-finished product, sterilizing the packaging material before filling, inspecting the outer tube of the filled container after filling, packaging, performing QC (quality control) sample reservation on the finished product after packaging, inspecting the finished product, and finally warehousing the finished product.
2. The novel grouting additive as claimed in claim 1, which comprises the following raw materials in parts by weight: 0.9% of hydroxypropyl methyl cellulose, 10.1% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine microspheres, 10% of kaolin and 34.5% of mineral powder.
3. The novel grouting additive as claimed in claim 1, which comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 1.5% of polycarboxylic acid water reducing agent, 1.5% of early strength agent, 41% of superfine microspheres, 10% of kaolin and 34.5% of mineral powder.
4. The novel grouting additive as claimed in claim 1, which comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine microspheres, 12% of kaolin and 32.5% of mineral powder.
5. The novel grouting additive as claimed in claim 1, which comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 35% of superfine microspheres, 11% of kaolin and 36.5% of mineral powder.
6. The novel grouting additive as claimed in claim 1, which comprises the following raw materials in parts by weight: 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 1% of plastic expanding agent, 1.5% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine microspheres, 10% of kaolin and 34.5% of mineral powder.
7. The novel grouting additive as claimed in claim 1, wherein in S2, the mixing ratio: the novel grouting additive is prepared by sequentially adding mixed raw materials of 1% of hydroxypropyl methyl cellulose, 10% of low-alkali expanding agent, 0.5% of plastic expanding agent, 2% of polycarboxylic acid water reducing agent, 2% of early strength agent, 40% of superfine microspheres, 10% of kaolin and mineral powder into a stirring pot, stirring and heating to 83 ℃ until all the raw materials are dissolved uniformly, stirring uniformly in the stirring pot, sampling and inspecting after uniform dispersion, and discharging after qualification to obtain the novel grouting additive.
8. The novel grouting additive as claimed in claim 1, wherein in S4, the packaging material is sterilized before filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010720508.4A CN111978006A (en) | 2020-07-24 | 2020-07-24 | Novel grouting additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010720508.4A CN111978006A (en) | 2020-07-24 | 2020-07-24 | Novel grouting additive |
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| Publication Number | Publication Date |
|---|---|
| CN111978006A true CN111978006A (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010720508.4A Pending CN111978006A (en) | 2020-07-24 | 2020-07-24 | Novel grouting additive |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006039100A1 (en) * | 2006-08-19 | 2008-02-21 | Indutec Gmbh | Casting cement with gap-filling properties, used to adhere body to foundation, comprises cement of specified quality with mineral filler and additives |
| CN103880372A (en) * | 2014-03-04 | 2014-06-25 | 北京纽维逊建筑工程技术有限公司 | Cement-based grouting material used for strengthening repairing as well as preparation method and application thereof |
| CN106145798A (en) * | 2016-07-04 | 2016-11-23 | 河南理工大学 | A kind of alkali-activated slag dual-liquid slip-casting material and preparation method thereof |
| CN111100411A (en) * | 2019-12-12 | 2020-05-05 | 福建海嘉包装有限公司 | Fading-resistant plastic for producing color woven bags |
-
2020
- 2020-07-24 CN CN202010720508.4A patent/CN111978006A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006039100A1 (en) * | 2006-08-19 | 2008-02-21 | Indutec Gmbh | Casting cement with gap-filling properties, used to adhere body to foundation, comprises cement of specified quality with mineral filler and additives |
| CN103880372A (en) * | 2014-03-04 | 2014-06-25 | 北京纽维逊建筑工程技术有限公司 | Cement-based grouting material used for strengthening repairing as well as preparation method and application thereof |
| CN106145798A (en) * | 2016-07-04 | 2016-11-23 | 河南理工大学 | A kind of alkali-activated slag dual-liquid slip-casting material and preparation method thereof |
| CN111100411A (en) * | 2019-12-12 | 2020-05-05 | 福建海嘉包装有限公司 | Fading-resistant plastic for producing color woven bags |
Non-Patent Citations (1)
| Title |
|---|
| 何廷树: "《混凝土外加剂》", 31 August 2003, 陕西科学技术出版社 * |
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Application publication date: 20201124 |