CN102351493A - Similar material for simulation injection of concrete in model test and preparation method thereof - Google Patents
Similar material for simulation injection of concrete in model test and preparation method thereof Download PDFInfo
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- CN102351493A CN102351493A CN 201110204190 CN201110204190A CN102351493A CN 102351493 A CN102351493 A CN 102351493A CN 201110204190 CN201110204190 CN 201110204190 CN 201110204190 A CN201110204190 A CN 201110204190A CN 102351493 A CN102351493 A CN 102351493A
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- rosin
- cement
- sprayed concrete
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- spirituous solution
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Abstract
The invention relates to a similar material for simulation injection of concrete in a model test and a preparation method thereof. The material employs high concentration rosin alcohol solution as a binder to increase cohesiveness of the similar material for simulation injection of concrete and a model body similar material; barite powder and cement are employed as conditioning agents to control strength and elastic modulus of the material for simulation injection of concrete so as to facilitate simulation of concrete injection with different strengths and thicknesses in real constructions. The material includes, by weight, 1 part of gesso, 0.1-0.2 part of barite powder, 0-0.1 part of cement and 0.33 part of rosin alcohol solution.
Description
Technical field
The present invention relates to a kind of analog material that is used for model trial simulation sprayed concrete, belong to materials science field.
Background technology
At present a lot of scholars study the optimization of underground works design and constructional method in a large number through geomechanical model test, carry out the exploration of construction process mechanics rule.But present underground project model test exists significantly not enough, when the simulation sprayed concrete, generally only considers to adopt the control water paste ratio to realize mechanical similitude.But in the actual mechanical process of model trial, the analog material and the model body analog material bad adhesion of simulation sprayed concrete are difficult to really play the effect of sprayed concrete in the actual engineering of simulation, and perform difficulty; Intensity is difficult to control simultaneously, and the presetting period is longer, is difficult to simulate the construction speed of actual engineering.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned prior art; A kind of analog material that is used for model trial simulation sprayed concrete is provided; This kind material adopts the rosin spirituous solution of high density as binding agent, improves the analog material of simulation sprayed concrete and the cohesiveness of model body analog material; Adopt ground barium sulfate and cement as conditioning agent, the analog material intensity and the Young's modulus of control simulation sprayed concrete help simulating varying strength in the actual engineering, the sprayed concrete of different thickness.
Another object of the present invention provides this kind preparation methods.
The technical scheme that the present invention takes is:
A kind of analog material that is used for model trial simulation sprayed concrete, the weight part of this kind material consists of: 1 part of terra alba, 0.1～0.2 part of ground barium sulfate, 0～0.1 part of cement, 0.33 part of rosin spirituous solution.
The weight part of this kind material consists of: 1 part of terra alba, 0.1 part of ground barium sulfate, 0.05 part of cement, 0.33 part of rosin spirituous solution.
Described terra alba presetting period≤5 minute, final setting time≤15 minute.
Described ground barium sulfate fineness is 325 orders.
Described cement is that ultimate compression strength is the ordinary Portland cement of 32.5MPa.
Described rosin spirituous solution mass percentage concentration is 20%.
A kind of preparation method who is used for the analog material of model trial simulation sprayed concrete may further comprise the steps:
1) strictness takes by weighing terra alba, ground barium sulfate, cement, rosin, spirituous solution in proportion;
2) with rosin grind up shape;
3) the rosin powder is joined spirituous solution, heating in water bath to 30 in encloses container～40 ℃;
4) shake container gently, temperature keeps 30～40 ℃, treats that rosin is dissolved in alcohol fully;
5) the rosin spirituous solution is cooled to room temperature;
6) terra alba, ground barium sulfate, cement mixing is even;
7) in the material that mixes, pour the rosin spirituous solution into, evenly stirred 5～10 minutes.
A kind of analog material that is used for model trial simulation sprayed concrete of the present invention, the rosin spirituous solution that adopts high density improves the analog material of simulation sprayed concrete and the cohesiveness of model body analog material as binding agent; Adopt ground barium sulfate and cement as conditioning agent, the analog material intensity and the Young's modulus of control simulation sprayed concrete, material significant parameter scope such as table 1, stress-strain(ed) curve under single shaft resistance to compression condition such as accompanying drawing 1:
Table 1
A kind of analog material that is used for model trial simulation sprayed concrete of the present invention; The technical scheme and the preparation method of the analog material of simulation sprayed concrete in the available model test have been studied; Traditional spray-up concrete analog material and model body analog material bad adhesion have been solved, the unmanageable problem of intensity.The analog material of simulation sprayed concrete is applied in the model trial, compares with forefathers' research, more near engineering practice, the geomechanics likeness in form model investigation achievement that is drawn is more accurate.
The present invention selects for use terra alba, ground barium sulfate, cement, rosin, spirituous solution as moiety, and wherein, terra alba is as main aggregate, and the requirement of its mechanical property and model trial material is more approaching, and the cohesiveness of itself is better behind its chance water; Ground barium sulfate mainly is the severe of regulating analog material as conditioning agent, makes analog material satisfy the requirement of similarity principle; Cement is the intensity of regulating analog material as additive; The alcohol rosin solution of high density is as binding agent; Outside the cohesiveness and intensity that improve material self; The more important thing is to have improved and simulate the analog material of sprayed concrete and the cohesiveness of model body analog material; Traditional spray-up concrete analog material and model body analog material bad adhesion have been solved, the unmanageable problem of intensity.In addition,, can increase the variation range of analog material mechanics parameter, improve the range of application of simulation sprayed concrete analog material greatly through regulating the proportion of ground barium sulfate and cement.
The present invention proposes the technical scheme of the analog material of simulation sprayed concrete in the model trial, have the following advantages:
1, can realize the bonds well of simulation concrete analog material of spray-up and model body analog material;
2, can regulate the intensity and the Young's modulus of the concrete analog material of simulation spray-up, simulate varying strength in the actual engineering, the spray-up concrete of different thickness;
3, can control initial set and final setting time, realize the construction speed of the actual engineering of simulation.
Description of drawings
The stress-strain curve diagram of Fig. 1 materials samples under single shaft resistance to compression condition.
The practical implementation method
Below in conjunction with embodiment the present invention is further specified.
Presetting period≤5 of the terra alba that the present invention is used minute, final setting time≤15 minute; The fineness of ground barium sulfate is 325 orders; Cement is 32.5 cement; Rosin spirituous solution mass percentage concentration is 20%.
A kind of analog material that is used for model trial simulation sprayed concrete, its weight ratio consists of: 1 part of terra alba, 0.1 part of ground barium sulfate, 0.05 part of cement, 0.33 part of rosin spirituous solution.
The preparation method may further comprise the steps:
1) strictness takes by weighing terra alba, ground barium sulfate, cement, rosin, spirituous solution in proportion;
2) with rosin grind up shape;
3) the rosin powder is joined spirituous solution, heating in water bath to 40 ℃ in encloses container;
4) shake container gently, temperature keeps 40 ℃, treats that rosin is dissolved in alcohol fully;
5) the rosin spirituous solution is cooled to room temperature;
6) terra alba, ground barium sulfate, cement mixing is even;
7) in the material that mixes, pour the rosin spirituous solution into, evenly stirred 10 minutes.
A kind of analog material that is used for model trial simulation sprayed concrete, its weight ratio consists of: 1 part of terra alba, 0.1 part of ground barium sulfate, 0.1 part of cement, 0.33 part of rosin spirituous solution.
The preparation method may further comprise the steps:
1) strictness takes by weighing terra alba, ground barium sulfate, cement, rosin, spirituous solution in proportion;
2) with rosin grind up shape;
3) the rosin powder is joined spirituous solution, heating in water bath to 40 ℃ in encloses container;
4) shake container gently, temperature keeps 40 ℃, treats that rosin is dissolved in alcohol fully;
5) the rosin spirituous solution is cooled to room temperature;
6) terra alba, ground barium sulfate, cement mixing is even;
7) in the material that mixes, pour the rosin spirituous solution into, evenly stirred 10 minutes.
A kind of analog material that is used for model trial simulation sprayed concrete, its weight ratio consists of: 1 part of terra alba, 0.2 part of ground barium sulfate, 0 part of cement, 0.33 part of rosin spirituous solution.
The preparation method may further comprise the steps:
1) strictness takes by weighing terra alba, ground barium sulfate, cement, rosin, spirituous solution in proportion;
2) with rosin grind up shape;
3) the rosin powder is joined spirituous solution, heating in water bath to 30 ℃ in encloses container;
4) shake container gently, temperature keeps 30 ℃, treats that rosin is dissolved in alcohol fully;
5) the rosin spirituous solution is cooled to room temperature;
6) terra alba, ground barium sulfate, cement mixing is even;
7) in the material that mixes, pour the rosin spirituous solution into, evenly stirred 5 minutes.
Claims (7)
1. an analog material that is used for model trial simulation sprayed concrete is characterized in that the weight part of this kind material consists of: 1 part of terra alba, 0.1～0.2 part of ground barium sulfate, 0～0.1 part of cement, 0.33 part of rosin spirituous solution.
2. according to the described analog material that is used for model trial simulation sprayed concrete of claim 1, it is characterized in that the weight part of this kind material consists of: 1 part of terra alba, 0.1 part of ground barium sulfate, 0.05 part of cement, 0.33 part of rosin spirituous solution.
3. according to claim 1 or the 2 described analog materials that are used for model trial simulation sprayed concrete, it is characterized in that described terra alba presetting period≤5 minute, final setting time≤15 minute.
4. according to claim 1 or the 2 described analog materials that are used for model trial simulation sprayed concrete, it is characterized in that described ground barium sulfate fineness is 325 orders.
5. according to claim 1 or the 2 described analog materials that are used for model trial simulation sprayed concrete, it is characterized in that described cement is that ultimate compression strength is the ordinary Portland cement of 32.5MPa.
6. according to claim 1 or the 2 described analog materials that are used for model trial simulation sprayed concrete, it is characterized in that described rosin spirituous solution mass percentage concentration is 20%.
7. according to the described a kind of preparation method who is used for the analog material of model trial simulation sprayed concrete of claim 1, it is characterized in that, may further comprise the steps:
1) strictness takes by weighing terra alba, ground barium sulfate, cement, rosin, spirituous solution in proportion;
2) with rosin grind up shape;
3) the rosin powder is joined spirituous solution, heating in water bath to 30 in encloses container～40 ℃;
4) shake container gently, temperature keeps 30～40 ℃, treats that rosin is dissolved in alcohol fully;
5) the rosin spirituous solution is cooled to room temperature;
6) terra alba, ground barium sulfate, cement mixing is even;
7) in the material that mixes, pour the rosin spirituous solution into, evenly stirred 5～10 minutes.
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| CN 201110204190 CN102351493B (en) | 2011-07-20 | 2011-07-20 | Similar material for simulation injection of concrete in model test and preparation method thereof |
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| CN 201110204190 CN102351493B (en) | 2011-07-20 | 2011-07-20 | Similar material for simulation injection of concrete in model test and preparation method thereof |
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| CN102351493A true CN102351493A (en) | 2012-02-15 |
| CN102351493B CN102351493B (en) | 2013-06-05 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746921A (en) * | 2016-12-11 | 2017-05-31 | 中国人民解放军理工大学 | A kind of recycling method of the cementing analog material of rosin |
| CN107101867A (en) * | 2017-05-25 | 2017-08-29 | 山东大学 | Coal seam Genesis of Karst Subsided Column gushing water model test similar materials and preparation method |
| CN108706914A (en) * | 2018-06-04 | 2018-10-26 | 浙江科技学院 | It is a kind of to simulate the material for newly mixing cement mortar property |
| CN109061117A (en) * | 2018-06-04 | 2018-12-21 | 浙江科技学院 | A kind of material that can simulate fresh concrete property |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792990A (en) * | 2005-11-23 | 2006-06-28 | 山东大学 | Iron spar powder, guartz sand cement rock-soil similar material and preparation process thereof |
-
2011
- 2011-07-20 CN CN 201110204190 patent/CN102351493B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792990A (en) * | 2005-11-23 | 2006-06-28 | 山东大学 | Iron spar powder, guartz sand cement rock-soil similar material and preparation process thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746921A (en) * | 2016-12-11 | 2017-05-31 | 中国人民解放军理工大学 | A kind of recycling method of the cementing analog material of rosin |
| CN107101867A (en) * | 2017-05-25 | 2017-08-29 | 山东大学 | Coal seam Genesis of Karst Subsided Column gushing water model test similar materials and preparation method |
| CN107101867B (en) * | 2017-05-25 | 2020-07-31 | 山东大学 | Coal bed karst collapse column water inrush model test analog simulation material and preparation method thereof |
| CN108706914A (en) * | 2018-06-04 | 2018-10-26 | 浙江科技学院 | It is a kind of to simulate the material for newly mixing cement mortar property |
| CN109061117A (en) * | 2018-06-04 | 2018-12-21 | 浙江科技学院 | A kind of material that can simulate fresh concrete property |
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| CN102351493B (en) | 2013-06-05 |
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