CN105606451A - Evaluation method for self-repair healing effect of cement-based material cracks - Google Patents
Evaluation method for self-repair healing effect of cement-based material cracks Download PDFInfo
- Publication number
- CN105606451A CN105606451A CN201610005002.9A CN201610005002A CN105606451A CN 105606451 A CN105606451 A CN 105606451A CN 201610005002 A CN201610005002 A CN 201610005002A CN 105606451 A CN105606451 A CN 105606451A
- Authority
- CN
- China
- Prior art keywords
- cement
- selfreparing
- acoustic emission
- healing effect
- damage
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
Abstract
The invention relates to an evaluation method for the self-repair healing effect of cement-based material cracks. The evaluation method comprises the following steps of 1 test point arranging, wherein multiple pre-loaded damaged cement-based material test sample groups of different formulas are selected, test points are arranged on all the test sample groups respectively, and acoustic emission sensors are stuck to the test point positions; 2 parameter setting and acoustic emission instrument calibrating, wherein board card parameters, channel parameters and viewing parameters of acoustic emission instruments are set, and the acoustic emission instruments are calibrated; 3 loading and signal collecting, wherein all the material test sample groups are loaded, the acoustic emission instruments are synchronously operated, and acoustic emission signals fed back by the acoustic emission instruments are collected; 4 parameter processing, wherein the acoustic emission signals are converted into acoustic emission parameters, and drawing processing is performed on the acoustic emission parameters; 5 result analyzing, wherein drawing processing results of all the test sample groups are compared, and then the test sample group with the optimal self-repair healing effect is obtained. Compared with the prior art, the evaluation method has the advantages that the result is accurate, the timeliness is good, and evaluation can be performed qualitatively and quantitatively.
Description
Technical field
The present invention relates to a kind of evaluation method, especially relate to a kind of healing effect of cement-based material crack selfreparingThe evaluation method of fruit.
Background technology
For concrete material, no matter be reinforced concrete structure or the concrete component of very large thickness, due toThe crack that the effects such as contraction and external loads cause is inevitable. The existence in crack and continuation expansion are concreteThe reason that structural strength reduces. Although some microcrack is little to intensity effect, can increase considerably the biography of structureDefeated performance, can cause harmful substance and increase the weight of structural damage, steel bar corrosion causing as chlorion and carbon dioxide etc.Cement-based material self-repairing system is for the reparation of concrete substrate microcrack and effectively delay potential harm and provideA new method, a self-repairing system will be removed effective monitoring and the required high cost of outside reparation from, andGreatly improve its security and durability.
In order to assess the improvement of cement-based material crack healing ability, need to remove comparison self-repair function front and back cementThe performance of sill. Have much for characterizing the method for cement-based material selfreparing at present, and these methods mainly allIt is the recovery based on Mechanical Properties of Cement-based Materials and permeance property. Recover the main survey using for mechanical propertyMethod for testing is intensity response rate, and intensity response rate refers to the sample behind prefabricated crack, after a period of time maintenance,In the time again carrying out mechanical test, gained load and the lotus of the sample that do not ftracture that is placed on equivalent environment, the identical length of timeThe ratio carrying, intensity response rate is the effect of quantitative reaction cracking cement sill healing to a certain extent, intensityResponse rate is larger, and the effect of selfreparing is better, illustrates that the material that crack is had larger intensity fills; For infiltrationThe recovery of performance, this is the important indicator that improves cement-based material durability, its method of mainly evaluating is infiltration systemNumber, infiltration coefficient refers to water by the speed of cracking sample, and infiltration coefficient is less, and crack self-healing better saidThe effect that bright crack is filled by material is better; For the recovery of the cracking cement-based material property of Nondestructive Evaluation, mainly adoptWith method be ultrasonic wave, its dominant mechanism be ultrasonic wave in maturing (4000-5000m/s) than at water(1480m/s) (350m/s) more easily propagates or in air, therefore, and in the time that ultrasonic wave is propagated near crack,Can cause its propagation time to increase, and after crack is filled, ultrasonic wave can be propagated by packing material, makesPropagation time reduces, therefore the time of ultrasonic propagation is shorter, illustrates that healing effect is better. But above-mentioned these selfreparingsAll there is following shortcoming and defect in method.
(1) intensity response rate. Although intensity response rate can quantitative assessment the recovery of cracking sample mechanical property,But it is larger that major defect is discreteness, and test accuracy is lower, can not reflect in cracking material loading procedure notWith the recovery situation of stressed stage performance.
(2) infiltration coefficient. Infiltration coefficient can be used as evaluates the main hand that cracking cement-based materials ' durability recoversSection, but still there are some shortcomings. Such as different fracture widths cannot be rejected the impact of infiltration coefficient, infiltration systemNumber can only be evaluated the recovery of transmission performance and cannot evaluate the recovery of mechanical property, in addition, and as infiltration coefficient experimentTime, water can flow through cracking specimen surface, and the carbon dioxide carrying in water can react with calcium ion generation calcium carbonate,And then the accuracy of impact experiment.
(3) ultrasonic wave. The great advantage of ultrasonic test be can Fast Evaluation the healing effect of cracking sample,But shortcoming is quantitatively to determine the degree of cracking sample healing, and the accuracy of test is general simultaneously.
Summary of the invention
Object of the present invention is exactly to provide a kind of cement-based material in order to overcome the defect that above-mentioned prior art existsThe evaluation method of the healing effect of crack autogenous healing.
Object of the present invention can be achieved through the following technical solutions:
An evaluation method for the healing effect of cement-based material crack selfreparing, comprises the following steps:
(1) measuring point is arranged: the prestrain damage cement-based material after cracking maintenance of choosing multiple different formulationsSample group is arranged measuring point respectively, and is sent out at measuring point place stickup sound in each prestrain damage cement matrix material samples groupPenetrate sensor;
(2) parameter setting and Acoustic radiating instrument device calibration: arrange sound emission instrument board parameter, channel parameters andView parameter, and then sound emission instrument is calibrated;
(3) loading and signals collecting: each prestrain damage cement matrix material samples group is loaded, and synchronousOperation sound emission instrument, gathers the acoustic emission signal of feeding back;
(4) parameter processing: acoustic emission signal is converted to acoustic emission parameters, then to acoustic emission parameters mapping placeReason;
(5) interpretation of result: the mapping result of the each prestrain damage of comparative analysis cement matrix material samples group,Obtain the prestrain damage cement matrix material samples group of selfreparing healing effect optimum.
In step (1), the layout of measuring point meets when prestrain damage cement matrix material samples group is loaded and sent outWhen raw fracture process, sound emission instrument can gather the acoustic emission signal of fracture process completely, and makes to add in loading procedureCarry instrument and calibrate AE sensor contactless.
Before calibrate AE sensor is pasted in step (1), first with sand paper, prestrain is damaged to cement matrix material samples groupMeasuring point place polish smooth, and coat couplant, then paste calibrate AE sensor, ensure that calibrate AE sensor is with pre-Load the vertical also contact in damage cement matrix material samples group surface closely.
In step (2), whether being calibrated to of sound emission instrument contacts tight by disconnected lead test checking calibrate AE sensorClose, when verificating sensor contacts when tight, can carry out next step test.
The described three-point bending that is loaded as loads, and loading the instrument using is three point bending test machine.
In step (3), prestrain damages cement matrix material samples group in loading procedure, three point bending test machineOperational mode is displacement control, and loading speed is 0.05mm/s, in loading procedure, if there is the sound emission letter of sudden changeNumber time, carry out mark.
When in step (4), to acoustic emission parameters, mapping is processed, the sudden change acoustic emission signal of mark is lighted weight analysis,Be conducive to like this draw material self-healing analysis result.
Described acoustic emission parameters comprises qualitative parameter and quantitative parameter, wherein, qualitative parameter be amplitude, energy orClash into number, quantitative parameter is the burst length.
In step (5), the standard that post-evaluation selfreparing healing effect is processed in amplitude mapping is: for once loadingAfter prestrain damage cement matrix material samples group, if while again loading, load reach once load maximum load itBefore, the amplitude number that exceedes the acoustic emission signal of 45 decibels accounts for the more than 10% of total amount, judges prestrain damage waterThere is selfreparing in cement-based material sample group;
The standard that post-evaluation selfreparing healing effect is processed in energy mapping is: the pre-damage cement matrix after once loadingAfter the maintenance of material samples group cracking, while again loading fracture, if before load reaches prestrain maximum load, compareEnergy in the time once loading fracture more than 50% discharges, and judges that prestrain damages cement matrix material samples group and sends outGive birth to selfreparing;
The standard of clashing into number mapping processing post-evaluation selfreparing healing effect is: the pre-damage cement based after once loadingAfter the maintenance of material sample group cracking, while again loading fracture, compare once loading if clash into quantity or the position at number peakWhen fracture, change, after the maintenance of the pre-damage of explanation cement matrix material samples group cracking, selfreparing has occurred;
The standard that post-evaluation selfreparing healing effect is processed in burst length mapping is: the burst length is less, and selfreparing moreClose effect better.
In qualitative analysis, main analysis mechanism is Kaiser (Caesar) effect, and the repeated load of sample arrivesOriginal institute adds maximum load obvious sound emission did not occur in the past, for the cement-based material of prestrain damage, if againWhen loading, the original institute of load arrival adds maximum load obvious acoustic emission activity had occurred in the past, and pre-damage can be describedCement-based material there is selfreparing, whether there is obvious acoustic emission activity, can shaking from acoustic emission signalThe parameter aspects such as width number, shock number and energy are judged.
For cement-based material, when after its cracking maintenance a period of time, if selfreparing or reparation do not occur systemWhen degree is very little, mechanical property recovers less so; And contrary, when system generation selfreparing, there is healing productWhile filling crack, mechanical property is recovered better so. And the quality that mechanical property is recovered directly affects cement matrixFracture process when material loads, and then use sound emission instrument to catch the cement-based material fracture of different healingsProcess, by processing capturing parameter (amplitude, energy, shock number and burst length), can compareWhether cement-based material there is selfreparing, and can judge the healing of selfreparing, thereby evaluates each prestrain damageThe quality of the healing effect of the selfreparing of cement matrix material samples group, and then be convenient to adopt selfreparing healing effect more excellentThe formula of prestrain damage cement matrix material samples group.
Compared with prior art, the present invention has the following advantages:
(1) method accuracy is high: the method that the present invention evaluates cement-based material crack selfreparing effect is sound emissionMethod, sound emission refers to the microseism being produced by the displacement in strain gauge material, microcrack and other irreversible variations(elasticity) ripple, therefore in the time having material to fill in cement-based material crack, no matter filler mechanical property power,All can in loading procedure, be captured by sound emission instrument.
(2) healing effect of can be simultaneously qualitative, the quantitative assessment cement-based material crack of acoustic-emission: by ginsengNumber amplitude, energy or the analysis of shock number, whether the crack that can qualitatively judge cement-based material there is healing and healingDegree, analyze by the parameter burst length, can specifically determine the degree of cement-based material crack healing.
(3) by the acoustic emission parameters processing of mapping, and comparative analysis, be convenient to accurately relatively obtain each prestrain and damageHinder the quality of the healing effect of the selfreparing of cement matrix material samples group, be particularly suitable for evaluating with self-repair functionThe healing effect of the formula group of cement-based material, thus screening obtains preferably selfreparing formula very easily.
(4) application prospect is extensive: the acoustic-emission of use of the present invention is evaluated the selfreparing of cement-based material crackHealing effect can be widely used in water conservancy project, prevention of marine concrete structures, underground concrete structure, use sound is sent outThe healing effect that the method for penetrating is evaluated cement-based material crack has advantages of that additive method is incomparable, and accuracy is high, effectFruit significantly, has good application prospect.
Brief description of the drawings
Fig. 1 is method of testing flow chart of the present invention;
Fig. 2 is the amplitude time while again loading for 28 days through standard curing after the pre-damage of benchmark group cement-based materialModified-image;
Fig. 3 is the amplitude time while again loading for 28 days through water curing after the pre-damage of benchmark group cement-based materialModified-image;
Fig. 4 shakes while within 28 days, again loading through standard curing after the pre-damage of admixture repair materials group cement-based materialWidth is image over time;
Fig. 5 is amplitude while again loading for 28 days through water curing after the pre-damage of admixture repair materials group cement-based materialImage over time;
Fig. 6 is the graph of a relation of relative pulse time and microcapsules volume in the embodiment of the present invention 2.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
Prepare I group cement admixture and II group cement admixture by the component of listing in table 1, wherein, I group cementThe cement admixture that mixture adopts for benchmark group cement-based material, II group cement admixture is admixture repair materialsThe cement admixture that adopts of group cement-based material, then 38% water and quality that quality accounts for cement composition are accounted for200% natural sand of cement composition adds respectively in above-mentioned I group cement admixture and II group cement admixtureStir, in the die for molding of 40mm × 40mm × 160mm, the demoulding after 24 hours, the standard that is then placed in is supportedMaintenance in protecting box, forms damage in advance by prestrain (maximum preload force be sample intensity 50%) in 7 days afterwards,Then respectively through standard curing and water curing to 28d, obtain benchmark group cement matrix material samples and admixture repair materialsGroup cement matrix material samples.
The proportioning (wt%) of table 1 cement composition
The benchmark group cement matrix material samples of above-mentioned acquisition and admixture repair materials group cement matrix material samples are madeThe prism mortar specimen of 40*40*160mm, operates by the step shown in Fig. 1 respectively:
(1) measuring point is arranged: in the center at each prism mortar specimen two ends, arrange that respectively a sound emission passesSensor;
(2) parameter setting and the calibration of sound emission instrument: arrange after plate parameter, channel parameters and view parameter,Use disconnected lead test to calibrate sound emission instrument;
(3) load and acoustic emission signal collection: load prism mortar specimen, loading procedure uses displacement control,Loading speed is 0.05mm/s, and synchronous operation sound emission instrument gathers signal;
(4) parameter processing: use related software to be converted to amplitude parameter obtained signal, then to amplitudeThe parameter processing of mapping;
(5) interpretation of result: the mapping result of the each prism mortar specimen of comparative analysis, whether evaluate test specimenThere is healing and healing effect separately.
From Fig. 2 and Fig. 4, benchmark group cement matrix material samples and admixture repair materials group cement-based material damage in advanceWhile within 28 days, again loading through standard curing after wound, no matter be benchmark group or admixture repair materials group, work as repetitionThe original institute of loaded load arrival adds maximum load obvious sound emission did not all occur in the past, meets kaiser effect,There is not selfreparing; And from Fig. 3 and Fig. 5, benchmark group cement matrix material samples and admixture repair materials group waterWhile within 28 days, again loading through water curing after the pre-damage of cement-based material, the kaiser of benchmark group and admixture repair materials groupEffect disappears, and this illustrates that selfreparing phenomenon has all occurred two groups of cement-based materials, and the amplitude of admixture repair materials groupNumber is obviously more, illustrates that the selfreparing successful of cement-based material of admixture repair materials group is higher than benchmark group, thereby the selfreparing effect that acoustic emission can accurate evaluation sample can be described.
In like manner, for the present embodiment scheme, adopt energy to judge when whether it selfreparing occurs, forOnce load prestrain damage cement matrix material samples group, if while again loading fracture, load reaches prestrain maximumBefore load, have than once loading when fracture more than 50% energy and discharge, judge prestrain damage waterThere is selfreparing in cement-based material sample group;
Determine whether generation selfreparing if adopt shock number to evaluate: first record the examination of prestrain damage cement-based materialQuantity or position that shock when sample group once loads damage is counted peak, if in the time again loading fracture, shock number peakQuantity or position are compared while once loading damage, and variation has occurred, and the examination of prestrain damage cement-based material can be describedThere is selfreparing in sample group.
Embodiment 2
Prepare following each group of cement admixture by the component of listing in table 2, wherein, first group of cement admixture is baseThe cement admixture that accurate group cement-based material adopts, i.e. the cement admixture of admixture self-repairing microcapsule not, secondGroup, the 3rd group and the 4th group are admixture microcapsules group cement-based material, the selfreparing of its cement admixture adoptingMicrocapsules volume is respectively 1wt%, 2wt% and 4wt%, then by each group of cement admixture respectively with account for cement combination38% water of thing and quality account for 200% natural sand mix and blend of cement composition, at 40mm × 40mmThe die for molding of × 160mm, the demoulding after 24 hours, is then placed in standard curing box maintenance, and 7 days are logical afterwardsCross prestrain (maximum preload force be 7d sample intensity 30%) and form damage in advance, then put into respectively airMiddle maintenance 5h, obtains benchmark group cement matrix material samples and admixture microcapsules group cement matrix material samples.
The formula (wt%) of table 2 cement composition
The benchmark group cement matrix material samples of above-mentioned acquisition and admixture microcapsules group cement matrix material samples are madeThe prism mortar specimen of 40*40*160mm, operates by the step shown in Fig. 1 respectively:
(1) measuring point is arranged: arrange a voice sending sensor in the center at each prism mortar specimen two ends respectivelyDevice;
(2) parameter setting and Acoustic radiating instrument device calibration: arrange sound emission instrument board parameter, channel parameters andView parameter, and then sound emission instrument is calibrated;
(3) loading and signals collecting: each prism mortar specimen is loaded, and loading procedure uses displacement controlSystem, loading speed is 0.05mm/s, and synchronous operation sound emission instrument, gathers the acoustic emission signal of feeding back;
(4) parameter processing: acoustic emission signal is converted to Pulse-Time Parameters, and then paired pulses time parameter is doneFigure processes;
(5) interpretation of result: the mapping result of the each prism mortar specimen of comparative analysis, obtains selfreparingThe prestrain damage cement matrix material samples group of healing effect optimum.
Burst length is defined as transmitting and the time that receives acoustical signal between test specimen two ends probe self. Acoustical signal is solidThe propagation speed differential heteropole of body medium and gas medium is large, if test specimen is impaired, and internal tiny crack quantity and areaHow many meetings cause the difference on solid and gas medium volume, the ratio of gas medium obviously rises, and then while causing pulseBetween increase in certain limit. Selfreparing test specimen after impaired, microcapsules breakage, renovation agent performance selfreparingEffect is by crackle and pore filling bonding, and result is exactly the ratio decline of gas medium, and the burst length has to a certain degreeReduce, the burst length, more the bright selfreparing effect of novel was better.
In order to eliminate the difference that affects of different fracture width paired pulses times, herein with the relative pulse time pointAnalyse. As shown in Figure 6, ordinate is the relative pulse time, and abscissa is microcapsules volume, and black is benchmark group,White is admixture microcapsules groups. Can find out prestrain 30%FmaxTime, when microcapsules volume is 1% and 4%,It is larger that the relative pulse time of test specimen is reduced degree, reduces maximum when volume is 4%, illustrates that its repairing effect is best.
The above-mentioned description to embodiment is can understand and use for ease of those skilled in the art to send outBright. Person skilled in the art obviously can easily make various amendments to these embodiment, and handle is at thisThe General Principle illustrating is applied in other embodiment and needn't passes through performing creative labour. Therefore, the present invention does not limitIn above-described embodiment, those skilled in the art are according to announcement of the present invention, do not depart from changing that category of the present invention makesEntering and revise all should be within protection scope of the present invention.
Claims (8)
1. an evaluation method for the healing effect of cement-based material crack selfreparing, is characterized in that, comprise withLower step:
(1) measuring point is arranged: the prestrain damage cement-based material after cracking maintenance of choosing many group different formulationsSample group is arranged measuring point respectively, and is sent out at measuring point place stickup sound in each prestrain damage cement matrix material samples groupPenetrate sensor;
(2) parameter setting and Acoustic radiating instrument device calibration: arrange sound emission instrument board parameter, channel parameters andView parameter, and then sound emission instrument is calibrated;
(3) loading and signals collecting: each prestrain damage cement matrix material samples group is reloaded, and withStep operation sound emission instrument, gathers the acoustic emission signal of feeding back;
(4) parameter processing: acoustic emission signal is converted to acoustic emission parameters, then to acoustic emission parameters mapping placeReason;
(5) interpretation of result: the mapping result of the each prestrain damage of comparative analysis cement matrix material samples group,Obtain the prestrain damage cement matrix material samples group of selfreparing healing effect optimum.
2. the evaluation method of the healing effect of a kind of cement-based material crack selfreparing according to claim 1,It is characterized in that, in step (1), the layout of measuring point meets when prestrain damage cement matrix material samples group is carried outWhen reloading and fracture process occurring, sound emission instrument can gather the acoustic emission signal of fracture process completely, and makes to addCarry and load instrument in process and calibrate AE sensor is contactless.
3. the evaluation method of the healing effect of a kind of cement-based material crack selfreparing according to claim 1,It is characterized in that, before calibrate AE sensor is pasted in step (1), first with sand paper, prestrain is damaged to cement matrixThe measuring point place of material samples group polishes smooth, and coats couplant, then pastes calibrate AE sensor, ensures that sound emission passesSensor is vertical with prestrain damage cement matrix material samples group surface and contact tight.
4. the evaluation method of the healing effect of a kind of cement-based material crack selfreparing according to claim 1,It is characterized in that, in step (2), being calibrated to by disconnected lead test checking calibrate AE sensor of sound emission instrument connectsWhether closely touch, when verificating sensor contacts when tight, can carry out next step test.
5. the evaluation method of the healing effect of a kind of cement-based material crack selfreparing according to claim 1,It is characterized in that, the described three-point bending that is loaded as loads, and loading the instrument using is three point bending test machine.
6. the evaluation method of the healing effect of a kind of cement-based material crack selfreparing according to claim 6,It is characterized in that, in step (3), in loading procedure, the operational mode of three point bending test machine is displacement control, addsCarrying speed is 0.05mm/s.
7. the evaluation method of the healing effect of a kind of cement-based material crack selfreparing according to claim 1,It is characterized in that, described acoustic emission parameters comprises qualitative parameter and quantitative parameter, wherein, qualitative parameter be amplitude,Energy or shock number, quantitative parameter is the burst length.
8. the evaluation method of the healing effect of a kind of cement-based material crack selfreparing according to claim 7,It is characterized in that, in step (5), the standard that post-evaluation selfreparing healing effect is processed in amplitude mapping is: forPrestrain damage cement matrix material samples group after once loading, if while again loading, load reaches and once loadsBefore large load, the amplitude number that exceedes the acoustic emission signal of 45 decibels accounts for the more than 10% of total amount, judges and adds in advanceCarry damage cement matrix material samples group selfreparing has occurred;
The standard that post-evaluation selfreparing healing effect is processed in energy mapping is: the pre-damage cement matrix after once loadingAfter the maintenance of material samples group cracking, while again loading fracture, if before load reaches prestrain maximum load, compareEnergy in the time once loading fracture more than 50% discharges, and judges that prestrain damages cement matrix material samples group and sends outGive birth to selfreparing;
The standard of clashing into number mapping processing post-evaluation selfreparing healing effect is: the pre-damage cement based after once loadingAfter the maintenance of material sample group cracking, while again loading fracture, compare once loading if clash into quantity or the position at number peakWhen fracture, change, after the maintenance of the pre-damage of explanation cement matrix material samples group cracking, selfreparing has occurred;
The standard that post-evaluation selfreparing healing effect is processed in burst length mapping is: the burst length is less, and selfreparing moreClose effect better.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005002.9A CN105606451A (en) | 2016-01-05 | 2016-01-05 | Evaluation method for self-repair healing effect of cement-based material cracks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005002.9A CN105606451A (en) | 2016-01-05 | 2016-01-05 | Evaluation method for self-repair healing effect of cement-based material cracks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105606451A true CN105606451A (en) | 2016-05-25 |
Family
ID=55986560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610005002.9A Pending CN105606451A (en) | 2016-01-05 | 2016-01-05 | Evaluation method for self-repair healing effect of cement-based material cracks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105606451A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108256151A (en) * | 2017-12-19 | 2018-07-06 | 同济大学 | A kind of cement-based material internal fissure self-healing effect evaluation method |
| CN108344860A (en) * | 2017-12-19 | 2018-07-31 | 同济大学 | The method for characterizing cement-based material surface crack self-healing effect based on healing bulk product |
| CN109828035A (en) * | 2019-02-27 | 2019-05-31 | 中国科学院上海硅酸盐研究所 | It is a kind of characterization selfreparing thermal barrier coating high-temperature service during selfreparing effect non-destructive testing method |
| CN110261478A (en) * | 2019-06-24 | 2019-09-20 | 济南大学 | A method of with ultrasound examination cement-based material selfreparing effect |
| CN114487124A (en) * | 2022-01-13 | 2022-05-13 | 大连锅炉压力容器检验检测研究院有限公司 | Crane structure damage diagnosis method based on acoustic emission signal characteristic parameters |
| CN115684279A (en) * | 2022-10-31 | 2023-02-03 | 江苏科技大学 | Quantitative test device and method for crack self-repairing effect of cement-based material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879272A (en) * | 2012-09-29 | 2013-01-16 | 长安大学 | Method for evaluating damage self-healing capacity of asphalt mortar |
| CN103487333A (en) * | 2013-10-11 | 2014-01-01 | 东南大学 | Asphalt mixture self-healing capability evaluating method |
| CN103558363A (en) * | 2013-11-04 | 2014-02-05 | 西南石油大学 | Method for evaluating self-repairing performance of well cementation cement sheath |
| CN104502419A (en) * | 2014-12-19 | 2015-04-08 | 西南石油大学 | Device and method for evaluating self-healing capacity of self-healing cement |
-
2016
- 2016-01-05 CN CN201610005002.9A patent/CN105606451A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879272A (en) * | 2012-09-29 | 2013-01-16 | 长安大学 | Method for evaluating damage self-healing capacity of asphalt mortar |
| CN103487333A (en) * | 2013-10-11 | 2014-01-01 | 东南大学 | Asphalt mixture self-healing capability evaluating method |
| CN103558363A (en) * | 2013-11-04 | 2014-02-05 | 西南石油大学 | Method for evaluating self-repairing performance of well cementation cement sheath |
| CN104502419A (en) * | 2014-12-19 | 2015-04-08 | 西南石油大学 | Device and method for evaluating self-healing capacity of self-healing cement |
Non-Patent Citations (4)
| Title |
|---|
| 李冬生 等: "自愈合混凝土损伤演化声发射监测及其评价技术", 《大连理工大学学报》 * |
| 杨振杰 等: "水泥基材料微裂缝自修复机理研究进展", 《石油钻探技术》 * |
| 石杏喜等: "基于声发射的混凝土损伤测试技术的研究", 《2008年力学测试技术研讨会论文集》 * |
| 赵宝辉 等: "水泥基材料微裂缝自修复技术研究进展", 《钻井液与完井液》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108256151A (en) * | 2017-12-19 | 2018-07-06 | 同济大学 | A kind of cement-based material internal fissure self-healing effect evaluation method |
| CN108344860A (en) * | 2017-12-19 | 2018-07-31 | 同济大学 | The method for characterizing cement-based material surface crack self-healing effect based on healing bulk product |
| CN108256151B (en) * | 2017-12-19 | 2020-07-28 | 同济大学 | Method for evaluating self-healing effect of internal cracks of cement-based material |
| CN109828035A (en) * | 2019-02-27 | 2019-05-31 | 中国科学院上海硅酸盐研究所 | It is a kind of characterization selfreparing thermal barrier coating high-temperature service during selfreparing effect non-destructive testing method |
| CN110261478A (en) * | 2019-06-24 | 2019-09-20 | 济南大学 | A method of with ultrasound examination cement-based material selfreparing effect |
| CN114487124A (en) * | 2022-01-13 | 2022-05-13 | 大连锅炉压力容器检验检测研究院有限公司 | Crane structure damage diagnosis method based on acoustic emission signal characteristic parameters |
| CN114487124B (en) * | 2022-01-13 | 2023-12-12 | 大连锅炉压力容器检验检测研究院有限公司 | Crane structure damage diagnosis method based on acoustic emission signal characteristic parameters |
| CN115684279A (en) * | 2022-10-31 | 2023-02-03 | 江苏科技大学 | Quantitative test device and method for crack self-repairing effect of cement-based material |
| CN115684279B (en) * | 2022-10-31 | 2023-11-21 | 江苏科技大学 | Cement-based material crack self-repairing effect quantitative test device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105606451A (en) | Evaluation method for self-repair healing effect of cement-based material cracks | |
| CN110108864B (en) | Nondestructive testing system and method for prestressed concrete beam | |
| CN109253921B (en) | Evaluation method for detecting strength of concrete test block | |
| Dai et al. | Damage investigation of single-edge notched beam tests with normal strength concrete and ultra high performance concrete specimens using acoustic emission techniques | |
| Saliba et al. | Identification of damage mechanisms in concrete under high level creep by the acoustic emission technique | |
| CN109374870B (en) | Method and device for evaluating repairing performance of cement-based self-repairing material | |
| US10156550B2 (en) | Non-intrusive methods for the detection and classification of alkali-silica reaction in concrete structures | |
| CN108169330A (en) | The device and method of concrete component axial stress non-destructive testing based on non-linear ultrasonic Harmonic Method | |
| CN105300801A (en) | Evaluation method of self-repairing effect of self-repairing cement-based material | |
| CN110220980A (en) | Test method based on acoustic emission measurement concrete in uniaxial tension damage evolution equation | |
| CN109374408A (en) | A kind of hand packing jointed rock mass Dynamic Characteristics Test method | |
| Diab et al. | Changes in mechanical properties and durability indices of concrete undergoing ASR expansion | |
| Pascale et al. | Nondestructive assessment of the actual compressive strength of high-strength concrete | |
| CN103926324A (en) | Method for detecting creep damage of main steam pipeline through ultrasonic surface waves | |
| Wiciak et al. | Sensor and dimensions effects in ultrasonic pulse velocity measurements in mortar specimens | |
| Zhou | A study of acoustic emission technique for concrete damage detection | |
| Świt et al. | Application of acoustic emission to monitoring the course of the alkali-silica reaction | |
| CN111596029A (en) | Method suitable for quickly evaluating performance of machine-made aggregate pebble mother rock | |
| CN201993345U (en) | Nondestructive test instrument for concrete structure | |
| Ghazvinian et al. | Challenges related to standardized detection of crack initiation thresholds for lower-bound or ultra-long-term strength prediction of rock | |
| Clayton et al. | Linear array ultrasonic test results from alkali-silica reaction (ASR) specimens | |
| JP2008128846A (en) | Alkali aggregate reaction determination method | |
| Son et al. | Estimation of the compressive strength of intact rock using non-destructive testing method based on total sound-signal energy | |
| RU2390018C1 (en) | Method for detection of concrete crack resistance | |
| Yesiller et al. | Ultrasonic assessment of stabilized soils |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160525 |
|
| RJ01 | Rejection of invention patent application after publication |