CN103344467A - Anti-permeability instrument test mold and using method thereof - Google Patents
Anti-permeability instrument test mold and using method thereof Download PDFInfo
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- CN103344467A CN103344467A CN 201310255095 CN201310255095A CN103344467A CN 103344467 A CN103344467 A CN 103344467A CN 201310255095 CN201310255095 CN 201310255095 CN 201310255095 A CN201310255095 A CN 201310255095A CN 103344467 A CN103344467 A CN 103344467A
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Abstract
The invention discloses an anti-permeability instrument test mold and a using method thereof. The anti-permeability instrument test mold comprises a test mold body, wherein sealed shallow slots are densely distributed on the inner wall of a mold cavity of the test mold body; at least one circle of sealed shallow slots penetrate through the circumferential direction of the inner wall of the test mold body. The method for using the anti-permeability instrument test mold comprises the following steps of: inverting and soaking the test mold body in a sealing material in a molten state, so that the sealed shallow slots are filled with the sealing material; taking out the test mold body, cooling and solidifying the sealing material in the sealed shallow slots, respectively putting the prepared six test pieces into the test mold body, preheating the test mold body with test pieces subjected to press fitting in an electric furnace until the sealing material is completely molten and the side walls of the test pieces are completely covered, cooling the test mold body, and mounting the test mold body on the anti-permeability instrument for performing an anti-permeability test of the test pieces. The anti-permeability instrument test mold is simple in operation process and convenient in operation, the previous mode of daubing a sealing layer on the outer wall of the test pieces is abandoned, lots of time is saved, the working efficiency is improved, and the sealing effect is good.
Description
Technical field
The present invention relates to build detecting instrument, be specifically related to a kind of Anti-leakage instrument die trial and using method thereof for concrete impervious test.
Background technology
Anti-leakage instrument is mainly used in the test of concrete impermeability and the mensuration of anti-penetration grade, simultaneously also can utilize it to do mensuration and the quality check of building materials gas penetration potential, be widely used in relevant production, construction, design, department such as teaching and research, Anti-leakage instrument generally carries die trial, before concrete sample is pressed into the Anti-leakage instrument die trial, important work is that sealant is smeared in the concrete sample side, the purpose of smearing sealant is shut concrete sample side and die trial inwall surface of contact fully, it is applied in whole detection guarantee not occur infiltration in the hydraulic pressure process.The present way of smearing sealant commonly used: 1, seal with paraffin: way the test specimen side wrap up in be coated with one deck fusing in add the paraffin of a small amount of rosin.Use then and revolve pressurizer test specimen is pressed in the die trial through baking oven or electric furnace preheating, make test specimen with concordant at the bottom of the die trial, and should be in the die trial pressure relief afterwards that turns cold.The preheat temperature of die trial should contact die trial with paraffin, and namely slowly fusing is not as the criterion but do not trickle; 2, add grease seal with cement: blade coating is on the test specimen side equably with encapsulant with triangular knife, and thickness is 1-2mm, and the cover upper testing mould also is pressed into test specimen, makes test specimen with concordant at the bottom of the die trial.Existing encapsulating method all is by smearing sealant to the concrete sample side, and to concrete sample side and the sealing of die trial inwall surface of contact, operational sequence is very loaded down with trivial details, and leaks easily after the water filling pressurization, and sealing effectiveness is bad.
The shortcoming of prior art is: the method for existing sealing concrete sample side and die trial inwall surface of contact, and operational sequence is very loaded down with trivial details, and leaks easily after the water filling pressurization, and sealing effectiveness is bad.
Summary of the invention
The object of the present invention is to provide Anti-leakage instrument die trial and the using method thereof of a kind of seal operation convenience and good sealing effect.
For achieving the above object, technical scheme of the present invention is as follows: a kind of Anti-leakage instrument die trial, comprise the die trial body, and be densely covered with the sealing shallow slot on the inwall of described die trial body die cavity, have at least a circle to connect the circumferential of die trial inner body wall in the sealing shallow slot.
Adopt said structure, when carrying out impervious detection, now will seal and fill up encapsulant in the shallow slot, as paraffin wax etc., can be by die trial tool body being immersed in the encapsulant of fusing, make in the sealing shallow slot and fill up encapsulant, take out then and be cooled to encapsulant and solidify, encapsulant in the sealing shallow slot is scraped to concordant with the die trial inner body wall, again concrete sample is pressed in the die trial body die cavity, make the test specimen lower end concordant with die trial body bottom, put into baking oven or electric furnace preheating then, encapsulant fusing in the sealing shallow slot is contacted with the test specimen outer wall, be cooled to normal temperature, encapsulant solidifies and seals up space between test specimen outer wall and the die trial inner body wall, but guarantee that encapsulant can not seal the upper and lower side of test specimen, the die trial body that dress is pressed test specimen is installed on the worktable of Anti-leakage instrument and tests, have at least a circle to connect the circumferential of die trial inner body wall in the sealing shallow slot, guaranteed to guarantee that in the axial seal of die trial body water can not ooze out between die trial body and test specimen between die trial body and the test specimen.
Described sealing shallow slot is the circumferential endless groove of the described die trial inner body wall of perforation, and the sealing shallow slot evenly distributes up and down along the die trial inner body wall.
The sealing shallow slot is endless groove, is at least two circles, and multi-turn can be set, to reach the better seal effect, the sealing shallow slot that each circle fills up encapsulant all can vertically seal up the space between die trial body and the test specimen, and the sealing shallow slot by multi-turn distributes up and down makes sealing effectiveness better.
Described sealing shallow slot is net distribution on the inwall of described die trial body.
Described die trial body is cylindric, and this die trial body lower end is the joint flange of ring-type, and this joint flange is provided with connecting hole.
The degree of depth of described sealing shallow slot is 2mm～8mm.
According to filling different encapsulants, the different degree of depth is set.
A kind of using method of described Anti-leakage instrument die trial may further comprise the steps:
S1, choose the columned shaping test piece that has processed, 6 is one group;
S2, get encapsulant and pack into and be heated to fusing in the container; The sealing material is paraffin wax.
S3, get 6 upside down immersion molten states of die trial body encapsulant in, just be exposed to outside the encapsulant to the joint flange of die trial body, make in the sealing shallow slot to be full of encapsulant;
S4, the die trial body is taken out, after the encapsulant cooled and solidified in the shallow slot to be sealed, the encapsulant in the sealing shallow slot is scraped to concordant with the die trial inner body wall;
S5,6 test specimens will getting ready are respectively charged in the die cavity of each die trial body, make test specimen concordant with die trial body bottom; The both ends of the surface of test specimen can not have encapsulant.
S6, the die trial body that will press-fit test specimen are put into baking oven or electric furnace and are preheated to sealing shallow slot encapsulant and melt fully, be not as the criterion but still do not trickle, encapsulant is filled between die trial inner body wall and the test specimen outer wall, and cover the test specimen sidewall fully, stop heating, be cooled to encapsulant and solidify; Guarantee that encapsulant fully is filled between die trial inner body wall and the test specimen outer wall, guarantee sealing effectiveness.
S7, cooled die trial body and test specimen among the S6 are installed in Anti-leakage instrument tighten, carry out impermeability test.
The impermeability test of test specimen may further comprise the steps among the described step S7:
1., hydraulic pressure is from 0.1MP, increases 0.1MP hydraulic pressure every 8 hours later on, and observes test specimen end face situation in the die trial body 1 at any time, when having 2 test specimen end faces that the infiltration phenomenon is arranged in 6 test specimens, namely stops test, and the hydraulic pressure value of record this moment;
2., concrete impervious grade result treatment, represent with 2 maximum water pressures when the infiltration phenomenons occurring in every group of 6 test specimens, be calculated as follows:
W=10H-1
In the formula: W represents concrete impervious grade
H represents in 6 test specimens 2 water pressures when infiltration occurring, the MP of unit.
If pressure adds to the regulation hydraulic pressure value, in 8 hours, when 6 test specimen end face infiltrations are less than 2, represent that then the impervious grade of test specimen is greater than setting.
The invention has the beneficial effects as follows: operational sequence is simple, easy to operate, abandoned the mode of in the past smearing sealant at the test specimen outer wall, saved the plenty of time, work efficiency is improved, and sealing effectiveness is very good, and method of testing is simple, test result is accurate.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the structural representation of embodiment 2.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 1, a kind of Anti-leakage instrument die trial, comprise die trial body 1, described die trial body 1 is cylindric, this die trial body 1 lower end is the joint flange 1a of ring-type, this joint flange 1a is provided with connecting hole 1b, be densely covered with the sealing shallow slot 2 of ring-type on the inwall of described die trial body 1 die cavity, sealing shallow slot 2 connects the circumferential of die trial body 1 inwall, and sealing shallow slot 2 evenly distributes up and down along die trial body 1 inwall, the degree of depth of sealing shallow slot 2 is 4mm, and the degree of depth of sealing shallow slot 2 also can be set to 3mm, 5mm etc. as required.
As shown in Figure 2, a kind of Anti-leakage instrument die trial, comprise die trial body 1, described die trial body 1 is cylindric, this die trial body 1 lower end is the joint flange 1a of ring-type, and this joint flange 1a is provided with connecting hole 1b, is densely covered with netted sealing shallow slot 2 on the inwall of described die trial body 1 die cavity, sealing shallow slot 2 connects the circumferential of die trial body 1 inwall, and the degree of depth of sealing shallow slot 2 is 6mm.
Embodiment 3
A kind of using method as embodiment 1 or embodiment 2 described Anti-leakage instrument die trials may further comprise the steps:
S1, choose the columned shaping test piece that has processed, 6 is one group;
S2, get paraffin and pack into and be heated to fusing in the container;
S3, get 6 die trial bodies, 1 upside down immersion molten state paraffin in, just be exposed to outside the paraffin to the joint flange 1a of die trial body 1, make in the sealing shallow slot 2 to be full of paraffin;
S4, die trial body 1 is taken out, after the paraffin cooled and solidified in the shallow slot 2 to be sealed, the paraffin in the sealing shallow slot 2 are scraped to concordant with die trial body 1 inwall;
S5,6 test specimens will getting ready are respectively charged in the die cavity of each die trial body 1, make test specimen concordant with die trial body 1 bottom;
S6, the die trial body 1 that will press-fit test specimen are put into electric furnace and are preheated to sealing shallow slot 2 paraffin and melt fully, and paraffin covers the test specimen sidewall fully, stops to heat, and is cooled to paraffin and solidifies;
S7, cooled die trial body 1 among the S6 is installed in Anti-leakage instrument tightens, carry out the impermeability test of test specimen;
1., hydraulic pressure is from 0.1MP, increases 0.1MP hydraulic pressure every 8 hours later on, and observes test specimen end face situation in the die trial body 1 at any time, when having 2 test specimen end faces that the infiltration phenomenon is arranged in 6 test specimens, namely stops test, and the hydraulic pressure value of record this moment;
2., concrete impervious grade result treatment, represent with 2 maximum water pressures when the infiltration phenomenons occurring in every group of 6 test specimens, be calculated as follows:
W=10H-1
In the formula: W represents concrete impervious grade
H represents in 6 test specimens 2 water pressures when infiltration occurring, the MP of unit.
Claims (7)
1. Anti-leakage instrument die trial comprises die trial body (1), it is characterized in that: be densely covered with sealing shallow slot (2) on the inwall of described die trial body (1) die cavity, have at least a circle to connect the circumferential of die trial body (1) inwall in the sealing shallow slot (2).
2. Anti-leakage instrument die trial according to claim 1 is characterized in that: described sealing shallow slot (2) is the circumferential endless groove of perforation described die trial body (1) inwall, and sealing shallow slot (2) evenly distributes up and down along die trial body (1) inwall.
3. Anti-leakage instrument die trial according to claim 1 is characterized in that: described sealing shallow slot (2) is net distribution on the inwall of described die trial body (1).
4. Anti-leakage instrument die trial according to claim 1 is characterized in that: described die trial body (1) is for cylindric, and this die trial body (1) lower end is the joint flange (1a) of ring-type, and this joint flange (1a) is provided with connecting hole (1b).
5. Anti-leakage instrument die trial according to claim 1 is characterized in that: the degree of depth of described sealing shallow slot (2) is 2mm～8mm.
6. using method as any described Anti-leakage instrument die trial in the claim 1～5 is characterized in that: may further comprise the steps:
S1, choose the columned shaping test piece that has processed, 6 is one group;
S2, get encapsulant and pack into and be heated to fusing in the container;
S3, get the upside down immersion molten state of 6 die trial bodies (1) encapsulant in, just be exposed to outside the encapsulant to the joint flange (1a) of die trial body (1), make in the sealing shallow slot (2) to be full of encapsulant;
S4, die trial body (1) is taken out, after the encapsulant cooled and solidified in the shallow slot to be sealed (2), will seal the interior encapsulant of shallow slot (2) and scrape to concordant with die trial body (1) inwall;
S5,6 test specimens will getting ready are respectively charged in the die cavity of each die trial body (1), make test specimen concordant with die trial body (1) bottom;
S6, the die trial body (1) that will press-fit test specimen are put into baking oven or electric furnace and are preheated to sealing shallow slot (2) encapsulant and melt fully, and encapsulant covers the test specimen sidewall fully, stops to heat, and is cooled to encapsulant and solidifies;
S7, cooled die trial body (1) among the S6 is installed in Anti-leakage instrument tightens, carry out the impermeability test of test specimen.
7. the using method of Anti-leakage instrument die trial according to claim 6, it is characterized in that: the impermeability test of test specimen may further comprise the steps among the described step S7:
1., hydraulic pressure is from 0.1MP, increases 0.1MP hydraulic pressure every 8 hours later on, and observes test specimen end face situation in the die trial body (1) at any time, when having 2 test specimen end faces that the infiltration phenomenon is arranged in 6 test specimens, namely stops test, and the hydraulic pressure value of record this moment;
2., concrete impervious grade result treatment, represent with 2 maximum water pressures when the infiltration phenomenons occurring in every group of 6 test specimens, be calculated as follows:
W=10H-1
In the formula: W represents concrete impervious grade
H represents in 6 test specimens 2 water pressures when infiltration occurring, the MP of unit.
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| CN 201310255095 CN103344467A (en) | 2013-06-25 | 2013-06-25 | Anti-permeability instrument test mold and using method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556931A (en) * | 2018-10-31 | 2019-04-02 | 同济大学 | Soil cement cutting ring sample preparation facilities and permeability coefficient of cement soil measuring method, equipment |
| CN111795916A (en) * | 2020-08-07 | 2020-10-20 | 内蒙古自治区建材产品质量检验院 | Method for detecting concrete impermeability |
| CN115598039A (en) * | 2022-12-14 | 2023-01-13 | 潍坊卓远检测仪器科技有限公司（Cn） | A check out test set for concrete impermeability |
-
2013
- 2013-06-25 CN CN 201310255095 patent/CN103344467A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556931A (en) * | 2018-10-31 | 2019-04-02 | 同济大学 | Soil cement cutting ring sample preparation facilities and permeability coefficient of cement soil measuring method, equipment |
| CN111795916A (en) * | 2020-08-07 | 2020-10-20 | 内蒙古自治区建材产品质量检验院 | Method for detecting concrete impermeability |
| CN115598039A (en) * | 2022-12-14 | 2023-01-13 | 潍坊卓远检测仪器科技有限公司（Cn） | A check out test set for concrete impermeability |
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Application publication date: 20131009 |