CN100351204C - Rock-analog ceramic material for cranny rock experiment and its test piece preparation method - Google Patents
Rock-analog ceramic material for cranny rock experiment and its test piece preparation method Download PDFInfo
- Publication number
- CN100351204C CN100351204C CNB2006100421311A CN200610042131A CN100351204C CN 100351204 C CN100351204 C CN 100351204C CN B2006100421311 A CNB2006100421311 A CN B2006100421311A CN 200610042131 A CN200610042131 A CN 200610042131A CN 100351204 C CN100351204 C CN 100351204C
- Authority
- CN
- China
- Prior art keywords
- rock
- oxide
- ceramic material
- hours
- pseudo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention provides a pseudo-rock ceramic material for a fissured rock test and a preparation method for a test sample of the pseudo-rock ceramic material. The pseudo-rock ceramic material has the components according to the proportion by weight: 50 to 70% of aluminum oxide, 15 to 35% of silicon dioxide, 5 to 15% of potassium oxide and 3 to 7% of sodium oxide. The preparation method for a test sample of the pseudo-rock ceramic material comprises the following steps: the components are ground to make 60 to 80% of the particle diameter smaller than 10 mu, and the components are dried; water is added to the components according to 10% of the total weight of the components to be uniformly mixed, and the components are put into a special-purpose mould to be shaped in a pressing mode through a press machine; next, a shaped test sample is directly put into a kiln to be fired after being dried for 24 hours at the temperature of 40 to 100 DEG C, wherein the firing temperature is from 1200 to 1380 DEG C, and the firing time is from 10 to 16 hours; finally, after the shaped test sample stops being heated and stays for 12 hours, a finished product is formed in the kiln. The mechanical property of the pseudo-rock ceramic material is basically same to that of rock. When the pseudo-rock ceramic material used as a rock replacing material to be tested, the mechanical process and the mechanical regulation of the complicated structure in the rock can be well explained.
Description
Technical field
The present invention relates to the preparation method of the prescription and the test specimen thereof of rocks stupalith, belong to rocks material technology field.
Background technology
For these years, the mathematics mechanics method can only provide theoretical explanation for simple question, and many analytical predictions are mostly from the achievement of field measurement and modeling effort.Though numerical evaluation provides strong instrument for the analytical calculation of rock mechanics,, its weak point is still arranged.Model trial is along with science and technology development develops to more perfect more high-grade form, adds that these class methods have the advantage that intuitive and whole audience pointwise provide conclusion, and model trial has obtained development rapidly.
Model trial originates from the beginning of this century, Hubbert (1937) at first proposes to make geologic model with analog material, then Saucier (1967) has done further research to cast material, and meanwhile Mandel (1963) and Fumagalli (1968) are applied to modelling technique mining engineering respectively and analyze Arch Dam Structure.The seventies, Fumagalli (1973) and R.J.Lutton (1974) have carried out comparatively systematic research to model trial.China woods rhythm plum has been delivered " test rock mechanics " book in nineteen eighty-three, the introduction of system the theory and the test method of simulation test.
Many fissurities in view of the rock mass medium, in the 9th international dam meeting of holding in 1967 and the international rock mechanics meeting held the same year, proposed to make up the imagination of simulating many fissuted mediums rock mass with the block of material, then the essential property of crack rock many researchs have been done both at home and abroad, Goldstein, M.; Hayashi, M.; Lama, R.D.; Kawamoto, T.; Muller L.; Einstein H.H.; Many scholars such as Brown E.T. utilize model trial, to crack rock carried out single pressure, singly drawn, the test of pure shear, also carried out simultaneously two dimension and three-dimensional compression testing, done analysis and research influencing factors such as crack rock strength characteristics, deformation characteristic, failure mode.
Domestic scholars has also been carried out extensive and deep research to model trial.Based on all problems such as stablizing of the dam foundation in the hydroelectric project, many geomechanical model tests were done by Tsing-Hua University, mainly finished the Block Model test of gypsum material,, also simulated main weakness band such as tomography etc. in case of necessity from the mechanics index of physics of group effect simulation rock mass.(1985) such as the pass Bao Shu of Southwest Jiaotong University utilize the grout block, with the glued fissure-plane of gypsum, by the uniaxial compression test under the lateral limitation situation, have mainly studied the influence to examination bulk properties, placement property, failure mechanisms of fracture set number and inclination angle.The cracked rock mass of Southwest Jiaotong University is stablized study group (1989) and once the stress distribution in the cracked rock mass ground, be out of shape, break etc. was carried out multiple Study of Experiment Model.Abroad, Reyes, Shen, usefulness gypsum samples such as Bobet and Einstein have studied the place an order expansion in crack and the rock bridge in two cracks of uniaxial loading and have connected mechanism and sample unstability pattern.The perforation mechanism that presets the crack sample that the Hong-Kong scholar uses class sandstone simulation material (mixture of barium sulfate, sand, gypsum and water) to study to contain different coefficients of friction and different angles to distribute connects inefficacy mechanism to rock bridge and has made the research of a series of single shaft and direct shear test aspect.Simulation test has become carries out a kind of indispensable important means of ROCK MECHANICS RESEARCH.
Above-mentioned gypsum material, the class sandstone isolith soil phase are that its physical and mechanical property and rock differ far away like the ubiquitous deficiency of material, can not simulate the mechanical change rule of real rock.Pottery also of no use carries out the report of rock test as equivalent material at present.
Summary of the invention
The present invention is directed to the deficiency that existing rocks material exists, provide a kind of mechanical property and rock basic identical, and be used for the rocks stupalith and the test material preparation method thereof that are used for the fissure rock test that simulation test can illustrate the mechanical process of rock complex construction and rule preferably.
For this reason, the prescription of rocks stupalith of the present invention and test material preparation method thereof are as follows respectively:
The component of rocks stupalith of the present invention is: aluminum oxide (AL
2O
3), silicon-dioxide (SiO
2), potassium oxide (K
2O), reach sodium oxide (NaO
2), its weight proportion is: aluminum oxide 50～70%, silica 1 5～35%, potassium oxide 5～15%, sodium oxide 3～7%.
Wherein most preferred weight proportion is: aluminum oxide 60%, silicon-dioxide 25%, potassium oxide 10%, sodium oxide 5%.
The preparation method of rocks stupalith test specimen of the present invention is as follows:
Each component of above-mentioned rocks stupalith is crushed to makes its particle diameter of 60～80% reach below 10 microns and oven dry, add entry by 10% of each component gross weight, mix, put into and the corresponding particular manufacturing craft of made test specimen, with 100 tons of pressing machine compression mouldings, directly packing kiln into after 24 hours in, adopt 40～100 ℃ of temperature dryings reducing flame to fire shaping test piece, firing temperature is 1200～1380 ℃, firing time is 10～16 hours, stop in the kiln then heating, treat kiln discharge after 12 hours.
Mechanical properties such as the density of rocks stupalith of the present invention, ultimate compression strength, porosity, dilatation, tensile pressure ratio, fracture toughness, fragility and rock are basic identical, test as the rock equivalent material, the mechanical process and the rule of complex construction in the rock can be described preferably, this be other analog materials and rock can not finish.By various mechanical tests and further check to its test specimen, the various physical and mechanical properties that obtain are: density 2100～2400kg/m
3Uniaxial compressive strength 40～80MPa; Young's modulus 4～10GPa; Porosity 1.5～3%; Tensile pressure ratio 8～12; Fracture toughness 0.8～1.2MPam
1/2Its trial curve shows that dilatancy is comparatively obvious, and reflects that from its mechanical property this material is in medium or good matter grouan classification.Through the pottery after selected, the proportioning of material, firing temperature can be widely used in the geotechnical engineering geomechanical model test research in fields such as the energy, traffic, water conservancy, mine with conventional ceramic different.
Description of drawings
Fig. 1 is a particular manufacturing craft structural representation of the present invention.
Fig. 2 is the stress-strain curve diagram of no confined pressure of the present invention.
Fig. 3 is the stress-strain curve diagram of confined pressure 5MPa of the present invention.
Fig. 4 is the stress-strain curve diagram of confined pressure 10MPa of the present invention.
Among the figure: 1, supporting plate, 2, bolt, 3, matrix, 4, extended body, 5, piston body.
Embodiment
Embodiment 1:
Be 60%, 25%, 10%, 5% ratio by weight, take by weighing aluminum oxide 0.273kg, silicon-dioxide 0.113kg, potassium oxide 0.045kg and sodium oxide 0.023kg, various materials by coarse crushing, in three steps broken, in small, broken bits its particle diameter of 70% is reached below 10 microns, and powder is made in oven dry.Add entry 0.045kg by 10% of four kinds of material gross weights, mix.Put into particular manufacturing craft as shown in Figure 1, this mould comprises supporting plate 1, matrix 3, extended body 4 and piston body 5, and matrix 3 is connected on the supporting plate 1 by bolt 2, and extended body 4 and matrix 3 are by being threaded.During use, supporting plate 1 is installed on 100 tons of oil pressure press bases, and piston body 5 is connected on the pressure head of pressing machine the compacting of the materials in the matrix 3.After the compression moulding, unload lower substrate 3, in matrix 3, take out the cylinder shape test specimen, adopt reducing flame under 1350 ℃ of temperature, to fire 12 hours in the kiln of under 100 ℃ of temperature, directly packing into after dry 24 hours from supporting plate 1.Stop in the kiln then heating, treat to take out after 12 hours.
Gained cylinder shape test specimen apparent size is influenced by the material contracts rate to be about φ 5cm * 10cm, and after tested, its various physical and mechanical properties are: density 2314.5kg/m3; Uniaxial compressive strength 60.02MPa; Young's modulus 5.7GPa; Porosity 1.8%; Tensile pressure ratio 11; Fracture toughness 0.98MPam
1/2Through testing on the state-of-the-art MTS815.03 electro-hydraulic servo rock test rig in the world, be 1 * 10 with strain rate
-6The quasistatic loading regime of/s, increase axial compression gradually by strain control, destroyed under the effect of test specimen in axial compression, obtain under the uniaxial compression state stress-strain(ed) curve as shown in Figure 2, confined pressure be 5MPa stress-strain(ed) curve as shown in Figure 3, confined pressure be 10MPa stress-strain(ed) curve as shown in Figure 4.Dilatancy is comparatively obvious as can be seen by trial curve, and is consistent with the stress-strain(ed) curve rule of good matter grouan.
Embodiment 2:
Be 60%, 25%, 10%, 5% ratio by weight, take by weighing aluminum oxide 0.268kg, silicon-dioxide 0.112kg, potassium oxide 0.044kg and sodium oxide 0.022kg, various materials by coarse crushing, in three steps broken, in small, broken bits its particle diameter of 70% is reached below 10 microns, and powder is made in oven dry.Add entry 0.044kg by 10% of four kinds of material gross weights, mix.Put into particular manufacturing craft as shown in Figure 1, be pressed into cylinder shape, take out the back under 100 ℃ of temperature dry 24 hours, adopt reducing flame under 1300 ℃ of temperature, to fire 12 hours in the kiln of directly packing into 100 tons of oil pressure pressing machinees.Stop in the kiln then heating, treat to take out after 12 hours.
Gained cylinder shape test specimen apparent size is influenced by the material contracts rate to be about φ 5cm * 10cm, and after tested, its various physical and mechanical properties are: density 2276.2kg/m
3Uniaxial compressive strength 52.3MPa; Young's modulus 5.3GPa; Porosity 1.9%; Tensile pressure ratio 11; Fracture toughness 0.95MPam
1/2After by embodiment 1 described method test specimen being carried out stress-strain test, the result is consistent with the stress-strain(ed) curve rule of medium hardness grouan.
Embodiment 3:
Be 60%, 25%, 10%, 5% ratio by weight, take by weighing aluminum oxide 0.266kg, silicon-dioxide 0.111kg, potassium oxide 0.044kg and sodium oxide 0.022kg, various materials by coarse crushing, in three steps broken, in small, broken bits its particle diameter of 70% is reached below 10 microns, and powder is made in oven dry.Add entry 0.044kg by 10% of four kinds of material gross weights, mix.Put into particular manufacturing craft as shown in Figure 1, be pressed into cylinder shape, take out the back under 100 ℃ of temperature dry 24 hours, adopt reducing flame under 1200 ℃ of temperature, to fire 12 hours in the kiln of directly packing into 100 tons of oil pressure pressing machinees.Stop in the kiln then heating, treat to take out after 12 hours.
Gained cylinder shape test specimen apparent size is influenced by the material contracts rate to be about φ 5cm * 10cm, and after tested, its various physical and mechanical properties are: density 2255kg/m3; Uniaxial compressive strength 49.7MPa; Young's modulus 5.0GPa; Porosity 2.0%; Tensile pressure ratio 11; Fracture toughness 0.92MPam
1/2After by embodiment 1 described method test specimen being carried out stress-strain test, the result is consistent with the stress-strain(ed) curve rule of medium hardness grouan.
Embodiment 4:
Be 57%, 30%, 8%, 5% ratio by weight, take by weighing aluminum oxide 0.255kg, silicon-dioxide 0.134kg, potassium oxide 0.036kg and sodium oxide 0.022kg, various materials by coarse crushing, in three steps broken, in small, broken bits its particle diameter of 70% is reached below 10 microns, and powder is made in oven dry.Add entry 0.045kg by 10% of four kinds of material gross weights, mix.Put into particular manufacturing craft as shown in Figure 1, be pressed into cylinder shape, take out the back under 100 ℃ of temperature dry 24 hours, adopt reducing flame under 1350 ℃ of temperature, to fire 12 hours in the kiln of directly packing into 100 tons of oil pressure pressing machinees.Stop in the kiln then heating, treat to take out after 12 hours.
Gained cylinder shape test specimen apparent size is influenced by the material contracts rate to be about φ 5cm * 10cm, and after tested, its various physical and mechanical properties are: density 2282.2kg/m3; Uniaxial compressive strength 71.3MPa; Young's modulus 6.8GPa; Porosity 1.8%; Tensile pressure ratio 11; Fracture toughness 1.03MPam
1/2After by embodiment 1 described method test specimen being carried out stress-strain test, the result is consistent with the stress-strain(ed) curve rule of good matter grouan.
Embodiment 5:
Be 63%, 22%, 10%, 5% ratio by weight, take by weighing aluminum oxide 0.287kg, silicon-dioxide 0.100kg, potassium oxide 0.045kg and sodium oxide 0.023kg, various materials by coarse crushing, in three steps broken, in small, broken bits its particle diameter of 70% is reached below 10 microns, and powder is made in oven dry.Add entry 0.045kg by 10% of four kinds of material gross weights, mix.Put into particular manufacturing craft as shown in Figure 1, be pressed into cylinder shape, take out the back under 100 ℃ of temperature dry 24 hours, adopt reducing flame under 1350 ℃ of temperature, to fire 12 hours in the kiln of directly packing into 100 tons of oil pressure pressing machinees.Stop in the kiln then heating, treat to take out after 12 hours.
Gained cylinder shape test specimen apparent size is influenced by the material contracts rate to be about φ 5cm * 10cm, and after tested, its various physical and mechanical properties are: density 2320.1kg/m3; Uniaxial compressive strength 73.6MPa; Young's modulus 6.9GPa; Porosity 1.8%; Tensile pressure ratio 11; Fracture toughness 1.07MPam
1/2After by embodiment 1 described method test specimen being carried out stress-strain test, the result is consistent with the stress-strain(ed) curve rule of good matter grouan.
Claims (3)
1, a kind of rocks stupalith that is used for the fissure rock test, it is characterized in that: its component is aluminum oxide, silicon-dioxide, potassium oxide and sodium oxide, and each composition weight proportioning is: aluminum oxide 50～70%, silica 1 5～35%, potassium oxide 5～15%, sodium oxide 3～7%.
2, rocks stupalith according to claim 1, it is characterized in that: the weight proportion of described each component is: aluminum oxide 60%, silicon-dioxide 25%, potassium oxide 10%, sodium oxide 5%.
3, a kind of preparation method who is used for the rocks stupalith test specimen of fissure rock test, it is characterized in that: will be aluminum oxide 50～70% by weight proportion, silica 1 5～35%, potassium oxide 5～15%, each component of the rocks stupalith that sodium oxide 3～7% is formed is crushed to and makes its particle diameter of 60～80% reach below 10 microns and oven dry, add entry by 10% of each component gross weight, mix, put into and the corresponding particular manufacturing craft of made test specimen, with 100 tons of pressing machine compression mouldings, directly packing kiln into after 24 hours in, adopt 40～100 ℃ of temperature dryings reducing flame to fire shaping test piece, firing temperature is 1200～1380 ℃, firing time is 10～16 hours, stop in the kiln then heating, treat kiln discharge after 12 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100421311A CN100351204C (en) | 2006-01-10 | 2006-01-10 | Rock-analog ceramic material for cranny rock experiment and its test piece preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100421311A CN100351204C (en) | 2006-01-10 | 2006-01-10 | Rock-analog ceramic material for cranny rock experiment and its test piece preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1800085A CN1800085A (en) | 2006-07-12 |
| CN100351204C true CN100351204C (en) | 2007-11-28 |
Family
ID=36810346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100421311A Expired - Fee Related CN100351204C (en) | 2006-01-10 | 2006-01-10 | Rock-analog ceramic material for cranny rock experiment and its test piece preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100351204C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620967B (en) * | 2012-04-06 | 2013-09-25 | 河海大学 | Rock-class test piece mould for field of rock mechanics |
| CN104677704A (en) * | 2015-01-22 | 2015-06-03 | 山东大学 | Large-diameter test block molding mould capable of prefabricating, and operating method of large-diameter test block molding mould |
| CN108956223B (en) * | 2018-05-29 | 2020-10-27 | 中国矿业大学 | Indoor remodeling method for weakly cemented sandstone |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995034518A1 (en) * | 1992-12-15 | 1995-12-21 | SERVANT, Suzanne | Ceramic material based on volcanic lava and method of production |
| JPH0812418A (en) * | 1994-07-01 | 1996-01-16 | Towa Denka Kogyo Kk | Production of ceramic molded product |
| CN1170136C (en) * | 2001-12-19 | 2004-10-06 | 中国科学院武汉岩土力学研究所 | Seepage test device for rock crack |
| CN1634797A (en) * | 2003-12-30 | 2005-07-06 | 上海奥贝尔企业发展有限公司 | Artificial stone and its preparing process and application |
-
2006
- 2006-01-10 CN CNB2006100421311A patent/CN100351204C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995034518A1 (en) * | 1992-12-15 | 1995-12-21 | SERVANT, Suzanne | Ceramic material based on volcanic lava and method of production |
| JPH0812418A (en) * | 1994-07-01 | 1996-01-16 | Towa Denka Kogyo Kk | Production of ceramic molded product |
| CN1170136C (en) * | 2001-12-19 | 2004-10-06 | 中国科学院武汉岩土力学研究所 | Seepage test device for rock crack |
| CN1634797A (en) * | 2003-12-30 | 2005-07-06 | 上海奥贝尔企业发展有限公司 | Artificial stone and its preparing process and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1800085A (en) | 2006-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Huang et al. | Crack coalescence behavior of sandstone specimen containing two pre-existing flaws under different confining pressures | |
| Ren et al. | Triaxial compressive behavior of UHPCC and applications in the projectile impact analyses | |
| Yin et al. | Mixed-mode I+ II tensile fracture analysis of thermally treated granite using straight-through notch Brazilian disc specimens | |
| Zhu et al. | Influence of substrate properties and interfacial roughness on static and dynamic tensile behaviour of rock-shotcrete interface from macro and micro views | |
| Yang et al. | Experimental study on mechanical behavior of brittle marble samples containing different flaws under uniaxial compression | |
| Zhou et al. | Damage mechanism of soil-rock mixture after freeze-thaw cycles | |
| Wang et al. | Experimental and numerical simulation study of crack coalescence modes and microcrack propagation law of fissured sandstone under uniaxial compression | |
| Chen et al. | Dynamic compressive and splitting tensile response of unsaturated polyester polymer concrete material at different curing ages | |
| Ju et al. | Experimental study of dynamic mechanical properties of reactive powder concrete under high-strain-rate impacts | |
| O’Malley et al. | Investigation into viability of using two-stage (pre-placed aggregate) concrete in Irish setting | |
| Huang et al. | Experimental and DEM study on failure behavior and stress distribution of flawed sandstone specimens under uniaxial compression | |
| Lei et al. | Effect of cyclic freezing-thawing on the shear mechanical characteristics of nonpersistent joints | |
| Wu et al. | Deformation and cracking characteristics of ring-shaped granite with inclusion under diametrical compression | |
| Zhang et al. | Deformation characteristics of cement mortar under triaxial cyclic loading: An experimental investigation | |
| Cecconi et al. | Structural features and mechanical behaviour of a pyroclastic weak rock | |
| CN110736662A (en) | Determination method for similar conditions and similar material proportions of simulated carbonate geomechanical models | |
| Cheng et al. | Study on the dynamic and static mechanical properties of microsphere rubber powder reinforced oil well cement composites | |
| CN100351204C (en) | Rock-analog ceramic material for cranny rock experiment and its test piece preparation method | |
| Wu et al. | Experimental investigation on mechanical properties of cemented paste backfill under different gradations of aggregate particles and types and contents of cementing materials | |
| Sarfarazi et al. | Physical test and PFC2D simulation of the failure mechanism of echelon joint under uniaxial compression | |
| Ge et al. | A method for making transparent hard rock-like material and its application | |
| Qin et al. | Dynamic behavior of carbon nanotubes and basalt fiber reinforced coral sand cement mortar at high strain rates | |
| Wang et al. | Numerical simulation of strength of basalt fiber permeable concrete based on CT technology | |
| CN113111563B (en) | Method for evaluating adhesive property of interface between geopolymer mortar and concrete | |
| Xiao et al. | Experimental study of the mechanical characteristics of a rock-like material containing a preexisting fissure under loading and unloading triaxial compression |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20110110 |