CN111439961A - Grouting material monitored and detected by utilizing electrical property difference and application thereof - Google Patents
Grouting material monitored and detected by utilizing electrical property difference and application thereof Download PDFInfo
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- CN111439961A CN111439961A CN202010448565.1A CN202010448565A CN111439961A CN 111439961 A CN111439961 A CN 111439961A CN 202010448565 A CN202010448565 A CN 202010448565A CN 111439961 A CN111439961 A CN 111439961A
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- grouting
- grouting material
- property difference
- electrical property
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
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- Engineering & Computer Science (AREA)
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
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- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a grouting material for monitoring and detecting by utilizing electrical property difference, which comprises one or more of cement-based material, gypsum-based material, solid waste material, cementing material, fine aggregate, coarse aggregate and water, and basalt fiber or graphite or steel fiber accounting for 0.1-50% of the total mass. Through the scheme, the grouting material detection method has the advantages of low cost, high resource utilization rate, simplicity and convenience in detection and the like, and has high practical value and popularization value in the technical field of grouting materials.
Description
Technical Field
The invention relates to the technical field of grouting materials, in particular to a grouting material monitored and detected by utilizing electrical property difference and application thereof.
Background
The grouting detection described herein is to detect the grouting filling condition after grouting and whether the grouting filling condition meets the physical and mechanical properties required by the design. The traditional grouting detection is to drill a field sample after grouting, and detect the sample by adopting a laboratory strength test and observing grouting quality; firstly, the construction process cannot be monitored in real time, meanwhile, only fixed-point detection can be carried out on detection points, the number, the positions and the like of drilling are limited, and the later-stage detection method is time-consuming, high in cost and incapable of mastering comprehensive grouting conditions. Moreover, after drilling and coring, the drilling point needs to be subjected to secondary grouting to seal the hole, and the hole sealing quality also influences the final grouting quality.
As is well known, cavities and/or rock mass water exist in the grouting cavity in the above-mentioned environment, wherein the rock mass water contains a large amount of conductive ions or conductive metal materials, and thus it is necessary to reduce the conductivity of the grouting material; similarly, if the grouting environment is a cavity type, the conductivity of the grouting material is nearly infinitesimal, and in this case, it is required to increase the conductivity of the grouting material. In order to realize rapid detection and monitoring, the invention provides a novel grouting method for monitoring and detecting grouting effect in real time by using the resistance difference between grouting material and surrounding rock soil or other materials, a novel grouting material design method matched with the grouting method and detection and monitoring equipment.
In addition, the invention patent of Chinese patent with the patent application number of '201810230113.9' and the name of 'an additive for conductive asphalt concrete and preparation thereof' is prepared from the following raw materials in parts by weight: 4-6 parts of chopped carbon fibers, 6-8 parts of calcined anthracite, 20-25 parts of modified steel slag, 40-45 parts of sheet zeolite and 50-65 parts of basalt stone, and the preparation method comprises the following steps: preparing modified steel slag, preparing calcined anthracite and mixing the raw materials. The technology is asphalt concrete, the used cementing material is organic material asphalt, the organic material asphalt and grouting materials prepared from the cement-based and gypsum-based inorganic cementing materials are two different materials, and the asphalt concrete is widely applied to high-grade highways, airport runways and the like, and has important effects and wide application prospects in the aspects of realizing snow melting and deicing of asphalt pavements, safety monitoring, intelligent management and the like.
Moreover, the invention has the patent application number of '201911178309.9' and the patent name of 'special concrete capable of controlling resistivity', wherein conductive materials are added into plain concrete prepared by ordinary portland cement, sand, stone and water, the resistivity of the concrete is controlled by changing the adding proportion of the conductive materials, and the mechanical property of the concrete is not reduced; the conductive material is one or two of steel fiber and carbon black. The technical problem to be solved is that in power station engineering construction, low-resistance soil is required to be integrally filled from an underground grounding body area to the bottom elevation (-2.2m) of a raft plate during construction of the grounding device so as to ensure the resistivity of the grounding device. Therefore, a special concrete capable of controlling the resistivity is urgently needed, and the special concrete can change the pattern of the deep digging, replacing and filling construction of the existing grounding device of the electric power engineering and achieve the significance of popularization of the electric power engineering in China.
Therefore, the two comparison documents improve the conductivity and provide guarantee for detection or grounding; the research direction of the grouting material is completely different from the research idea of improving or reducing the resistivity of the grouting material to obviously distinguish the resistivity of the original geological engineering environment to detect and monitor the grouting effect, and the two comparison documents can not solve the problem of detecting a large amount of conductive ions or conductive metal materials in the grouting environment.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a grouting material for monitoring and detecting electrical property difference and an application thereof, wherein the grouting material comprises the following technical solutions:
a grouting material for monitoring and detecting by utilizing electrical property difference comprises basalt fiber or graphite or steel fiber accounting for 0.1-50% of the total mass.
Furthermore, the grouting material monitored and detected by using the electrical property difference also comprises one or a combination of more of cement-based materials, gypsum-based materials, solid waste materials, cementing materials, fine aggregates, coarse aggregates and water.
A conductive grouting material applicable to grouting detection adopts a grouting material monitored and detected by utilizing electrical property difference.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention skillfully adopts basalt fiber as a raw material, has the function of reducing the conductivity of the grouting material, and is suitable for the environment containing a large amount of conductive ions or conductive metal materials; similarly, the graphite and the steel fibers are adopted in the invention to improve the conductivity of the grouting material, and the grouting material is suitable for environments such as cavities and the like.
(2) The novel grouting material utilizing the difference of the conductivity can skillfully utilize the composition materials and the proportion of solid wastes, change the resistance of the grouting material and meet the strength required by the material.
(3) The invention realizes the distinguishing of the conductivity of the grouting material and the original geological engineering environment by changing the resistivity, so as to be convenient for detecting and monitoring the performance and the effect of the grouting material, and realize the on-line detection (pre-buried probe) without drilling a sample.
(4) The invention saves the cost of grouting detection, saves energy, improves the resource utilization rate and reduces underground space, particularly water pollution.
In conclusion, the invention has the advantages of low cost, high resource utilization rate, simple and convenient detection and the like, and has very high practical value and popularization value in the technical field of grouting materials.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of protection, and it is obvious for those skilled in the art that other related drawings can be obtained according to these drawings without inventive efforts.
Fig. 1 is a schematic diagram (one) of resistivity test of the grouting material of the present invention.
Fig. 2 is a schematic diagram (two) of the resistivity test of the grouting material according to the present invention.
FIG. 3 is a graph showing the on-site test of the amount of graphite or steel fibers added in accordance with the present invention versus the resistance value.
FIG. 4 is a graph showing the on-site test of the amount of basalt fiber added to the electric resistance according to the present invention.
Detailed Description
To further clarify the objects, technical solutions and advantages of the present application, the present invention will be further described with reference to the following examples, which include, but are not limited to, the following examples. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Examples
As shown in fig. 1 to 4, the present embodiment provides a grouting material using electrical property difference monitoring and detection and its application, which includes one or more combinations of cement-based material, gypsum-based material, solid waste material, gelling material, fine aggregate, coarse aggregate and water (all the above materials can use solid waste material (except water)), and the total mass ratio of the grouting material is 0.1% to 50% of basalt fiber, graphite or steel fiber.
In order to verify the electric conductivity and strength of different proportions, electric conductivity and strength tests are carried out on materials with different electric conductivity in different proportions, and partial intermediate test results are as follows:
it can be known from the table that the resistance value of the grouting material is changed by basalt fiber or graphite or steel fiber accounting for 0.1-50% of the total proportion, and the grouting resistivity is improved or reduced to obviously distinguish the original geology.
In addition, in this embodiment, a grouting area of a certain tunnel is selected, where the grouting area contains a large amount of conductive ions, and in order to distinguish rock and soil from grouting materials, it is necessary to reduce the conductivity of the grouting materials and add resistance values, as shown in fig. 4, in this embodiment, the resistance is increased by adding basalt fibers; in addition, in this embodiment, a hole is also selected, and the resistance value is approximately infinite, so that the conductivity needs to be increased and the resistance value needs to be decreased, as shown in fig. 3, in this embodiment, the resistance value is decreased by adding graphite or steel fiber.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and has very high practical value and popularization value in the technical field of grouting materials.
The above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the scope of the present invention, but all the modifications made by the principles of the present invention and the non-inventive efforts based on the above-mentioned embodiments shall fall within the scope of the present invention.
Claims (3)
1. The grouting material for monitoring and detecting by utilizing the electric property difference is characterized by comprising 0.1-50% of basalt fiber or graphite or steel fiber in mass percentage.
2. The grouting material for monitoring and detecting electrical property difference according to claim 1, further comprising one or more of cement-based material, gypsum-based material, solid waste material, gelling material, fine aggregate, coarse aggregate, and water.
3. A conductive grouting material for grouting detection, characterized in that the grouting material for monitoring and detecting by electrical difference according to any one of claims 1 to 2 is used.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010448565.1A CN111439961A (en) | 2020-05-25 | 2020-05-25 | Grouting material monitored and detected by utilizing electrical property difference and application thereof |
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| CN202010448565.1A CN111439961A (en) | 2020-05-25 | 2020-05-25 | Grouting material monitored and detected by utilizing electrical property difference and application thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060243166A1 (en) * | 2004-01-29 | 2006-11-02 | Halliburton Energy Services, Inc. | Downhole servicing compositions having high thermal conductivities and methods of using the same |
| CN107721318A (en) * | 2017-11-17 | 2018-02-23 | 河北达奥达建材科技股份有限公司 | A kind of graphene cement-based grouting material |
| CN108439851A (en) * | 2018-03-20 | 2018-08-24 | 和县祥龙沥青混凝土有限公司 | A kind of conductive asphalt concrete additive and its preparation |
| CN109186896A (en) * | 2018-09-21 | 2019-01-11 | 河海大学 | It is a kind of for detecting the long-distance distributed monitoring system for the treatment of technology for tunnel seepage |
| CN109856191A (en) * | 2019-01-04 | 2019-06-07 | 西南交通大学 | A method of detection sleeve grouting quality |
| CN110803900A (en) * | 2019-11-27 | 2020-02-18 | 大连恒流储能电站有限公司 | Special concrete capable of controlling resistivity |
-
2020
- 2020-05-25 CN CN202010448565.1A patent/CN111439961A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060243166A1 (en) * | 2004-01-29 | 2006-11-02 | Halliburton Energy Services, Inc. | Downhole servicing compositions having high thermal conductivities and methods of using the same |
| CN107721318A (en) * | 2017-11-17 | 2018-02-23 | 河北达奥达建材科技股份有限公司 | A kind of graphene cement-based grouting material |
| CN108439851A (en) * | 2018-03-20 | 2018-08-24 | 和县祥龙沥青混凝土有限公司 | A kind of conductive asphalt concrete additive and its preparation |
| CN109186896A (en) * | 2018-09-21 | 2019-01-11 | 河海大学 | It is a kind of for detecting the long-distance distributed monitoring system for the treatment of technology for tunnel seepage |
| CN109856191A (en) * | 2019-01-04 | 2019-06-07 | 西南交通大学 | A method of detection sleeve grouting quality |
| CN110803900A (en) * | 2019-11-27 | 2020-02-18 | 大连恒流储能电站有限公司 | Special concrete capable of controlling resistivity |
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