CN108717038A - A kind of agent on crack resistance of concrete gas permeability experimental rig and method - Google Patents
A kind of agent on crack resistance of concrete gas permeability experimental rig and method Download PDFInfo
- Publication number
- CN108717038A CN108717038A CN201810502469.3A CN201810502469A CN108717038A CN 108717038 A CN108717038 A CN 108717038A CN 201810502469 A CN201810502469 A CN 201810502469A CN 108717038 A CN108717038 A CN 108717038A
- Authority
- CN
- China
- Prior art keywords
- concrete
- pvc
- backing plate
- gas
- air
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
一种混凝土抗气体渗透性试验装置及方法。涉及混凝土耐久性试验领域，尤其涉及混凝土的气体渗透性试验装置及方法。提供了一种结构简单，方便加工，提高密封性和试验可靠性的混凝土抗气体渗透性试验装置及方法。包括高压气瓶、气体渗透单元和气体流量计；所述气体渗透单元包括顶板、底板、钢套、混凝土试件和环形充气橡胶囊，所述钢套连接在顶板和底板之间形成测试腔，所述混凝土试件和充气橡胶囊分别位于测试腔内，所述混凝土试件和PVC圆垫板一、二位于充气橡胶囊内；所述充气橡胶囊的内侧设有试件补偿机构，所述试件补偿机构用于包裹混凝土试件。本发明通过设置试件补偿机构，提高混凝土试件的密封可靠性。
A concrete gas permeability resistance test device and method. The invention relates to the field of concrete durability test, in particular to a gas permeability test device and method of concrete. Provided is a concrete gas permeability resistance test device and method with simple structure, convenient processing, and improved airtightness and test reliability. Including a high-pressure gas cylinder, a gas permeation unit and a gas flow meter; the gas permeation unit includes a top plate, a bottom plate, a steel sleeve, a concrete specimen and an annular inflatable rubber bag, and the steel sleeve is connected between the top plate and the bottom plate to form a test chamber, The concrete test piece and the inflatable rubber bag are respectively located in the test cavity, and the concrete test piece and the PVC round backing plates one and two are located in the inflatable rubber bag; the inner side of the inflatable rubber bag is provided with a test piece compensation mechanism, and the The specimen compensation mechanism is used to wrap the concrete specimen. The invention improves the sealing reliability of the concrete test piece by setting the test piece compensation mechanism.
Description
技术领域technical field
本发明涉及混凝土耐久性试验领域，尤其涉及混凝土的气体渗透性试验装置及方法。The invention relates to the field of concrete durability tests, in particular to a concrete gas permeability test device and method.
背景技术Background technique
混凝土材料的耐久性下降和服役性能过早劣化是当前水泥混凝土科学界和工程界最为关注的问题，气体渗透性能是一项表征混凝土耐久性的重要指标。目前，稳压法测试混凝土气体渗透性通常采用机械密封，实践中发现此方法密封效果不佳，并且容易造成混凝土试件破坏，从而影响混凝土气体渗透系数实验结果的真实度与可靠性。The durability decline and premature deterioration of concrete materials are the most concerned issues in the scientific and engineering circles of cement concrete at present, and the gas permeability is an important index to characterize the durability of concrete. At present, mechanical sealing is usually used to test the gas permeability of concrete by the pressure stabilization method. In practice, it is found that this method has poor sealing effect and is easy to cause damage to the concrete specimen, thus affecting the authenticity and reliability of the experimental results of the gas permeability coefficient of concrete.
如图5所示，通常高压气瓶对充气橡胶囊充气动作时，存在充气橡胶囊中间外凸作用，使得混凝土试件受力较大，容易损坏；同时，两端内凹，降低了密封的可靠性。As shown in Figure 5, when the high-pressure gas cylinder inflates the inflatable rubber bag, there is a convex effect in the middle of the inflatable rubber bag, which causes the concrete specimen to be stressed and easily damaged; at the same time, the two ends are concave, which reduces the sealing performance reliability.
发明内容Contents of the invention
本发明针对以上问题，提供了一种结构简单，方便加工，提高密封性和试验可靠性的混凝土抗气体渗透性试验装置及方法。Aiming at the above problems, the present invention provides a concrete gas permeability resistance test device and method with simple structure, convenient processing, improved airtightness and test reliability.
本发明的技术方案是：包括高压气瓶、气体渗透单元和气体流量计；所述气体渗透单元包括顶板、底板、钢套、混凝土试件和环形充气橡胶囊，所述钢套连接在顶板和底板之间形成测试腔，所述混凝土试件和充气橡胶囊分别位于测试腔内，所述混凝土试件和顶板之间设有PVC圆垫板一，混凝土试件和底板之间设有PVC圆垫板二，所述混凝土试件和PVC圆垫板一、二位于充气橡胶囊内；The technical scheme of the present invention is: comprise high-pressure gas bottle, gas permeation unit and gas flowmeter; Described gas permeation unit comprises top plate, bottom plate, steel sleeve, concrete specimen and annular inflatable rubber bag, and described steel sleeve is connected on top plate and A test cavity is formed between the bottom plates, and the concrete test piece and the inflatable rubber bag are respectively located in the test cavity. A PVC circular backing plate is arranged between the concrete test piece and the top plate, and a PVC circular backing plate is arranged between the concrete test piece and the bottom plate. Backing plate two, the concrete test piece and PVC round backing plates one and two are located in the inflatable rubber bag;
所述钢套上设有连通充气橡胶气囊的进气口，所述进气口通过气管连通高压气瓶，The steel sleeve is provided with an air inlet connected to an inflatable rubber airbag, and the air inlet is connected to a high-pressure gas cylinder through a trachea.
所述底板和PVC圆垫板二上设有渗透单元进气口，所述顶板和PVC圆垫板一上设有渗透单元出气口，所述渗透单元进气口通过气管连通高压气瓶，所述渗透单元出气口通过气管连通气体流量计；The bottom plate and the PVC round backing plate two are provided with an air inlet of the permeation unit, and the top plate and the PVC round backing plate are provided with an air outlet of the permeation unit, and the air inlet of the permeation unit is connected to a high-pressure gas cylinder through a trachea. The gas outlet of the permeation unit is connected to the gas flow meter through the gas pipe;
所述充气橡胶囊的内侧设有试件补偿机构，所述试件补偿机构用于包裹混凝土试件。The inside of the inflatable rubber bag is provided with a sample compensation mechanism, and the sample compensation mechanism is used to wrap the concrete sample.
所述试件补偿机构包括环形套筒，所述套筒内设有气路，所述套筒的中间外侧设有连通气路的环形气囊一，所述底板上设有连通气路的气孔，所述气孔通过气管连通高压气瓶；The test piece compensation mechanism includes an annular sleeve, an air path is arranged inside the sleeve, an annular air bag 1 communicating with the air path is arranged on the outside of the middle of the sleeve, and an air hole communicating with the air path is arranged on the bottom plate. The air hole communicates with the high-pressure cylinder through the trachea;
所述套筒用于包裹混凝土试件和PVC圆垫板一、二。The sleeve is used to wrap the concrete test piece and the PVC round backing plates 1 and 2.
所述套筒的两端内侧分别设有环形气囊二，所述PVC圆垫板一和PVC圆垫板二上分别设有环形嵌槽，所述气囊二连通气路，所述气囊二适配地设在嵌槽内。The inner sides of both ends of the sleeve are respectively provided with two annular airbags, the first PVC round backing plate and the second PVC round backing plate are respectively provided with annular slots, the second airbag is connected to the air circuit, and the second airbag is adapted to set in the slot.
所述试件补偿机构为：所述PVC圆垫板一的底面设有柔性挡环一，所述PVC圆垫板二的顶面设有柔性挡环二，所述柔性挡环一和柔性挡环二均呈锥台状、且对称设置，所述柔性挡环一接触柔性挡环二，使得PVC圆垫板一和PVC圆垫板二之间形成密封腔，所述混凝土试件位于密封腔内。The sample compensation mechanism is as follows: the bottom surface of the PVC round backing plate 1 is provided with a flexible stop ring 1, the top surface of the PVC round backing plate 2 is provided with a flexible stop ring 2, the flexible stop ring 1 and the flexible stop ring Both rings are frustum-shaped and arranged symmetrically. The flexible retaining ring 1 contacts the flexible retaining ring 2, so that a sealed cavity is formed between the PVC circular backing plate 1 and the PVC circular backing plate 2, and the concrete specimen is located in the sealed cavity. Inside.
所述柔性挡环一和柔性挡环二的端面之间设有密封圈。A sealing ring is provided between the end surfaces of the first flexible retaining ring and the second flexible retaining ring.
所述试件补偿机构包括圆筒，所述圆筒用于包裹混凝土试件和PVC圆垫板一、二，所述圆筒的中间设有环形柔性凸起，所述柔性凸起内设有弹簧。The sample compensation mechanism includes a cylinder, the cylinder is used to wrap the concrete sample and the PVC circular backing plate 1, 2, the middle of the cylinder is provided with an annular flexible protrusion, and the flexible protrusion is provided with spring.
本发明在工作中，通过顶板、钢套和底板形成密闭的测试腔，将混凝土试件放置在测试腔内，混凝土试件的上、下方分别设置PVC圆垫板一、二，将其包裹至充气橡胶囊内，首先，充气橡胶囊通过高压气瓶进行充气，实现密封；In the work of the present invention, a closed test cavity is formed by the top plate, steel sleeve and bottom plate, and the concrete test piece is placed in the test cavity, and PVC round backing plates 1 and 2 are respectively arranged on the top and bottom of the concrete test piece, and they are wrapped in In the inflatable rubber bag, firstly, the inflatable rubber bag is inflated by a high-pressure cylinder to achieve sealing;
然后，高压气瓶通过底板和PVC圆垫板二上的渗透单元进气口进气动作，再通过顶板和PVC圆垫板一上的渗透单元出气口出气，通过气体流量计进行测试；Then, the high-pressure gas cylinder enters the air through the air inlet of the permeation unit on the bottom plate and the second PVC round backing plate, and then exits through the air outlet of the permeation unit on the top plate and the first PVC round backing plate, and is tested by the gas flow meter;
通过设置试件补偿机构，避免破坏混凝土试件，同时，提高测试的密封性。By setting the sample compensation mechanism, the damage to the concrete sample is avoided, and at the same time, the sealing performance of the test is improved.
本发明中的混凝土试件为圆饼状，上、下分别设置PVC圆垫板一、二，通过设置试件补偿机构，提高混凝土试件的密封可靠性。The concrete test piece in the present invention is in the shape of a round cake, and PVC round backing plates 1 and 2 are arranged on the upper and lower sides respectively, and the sealing reliability of the concrete test piece is improved by setting a test piece compensation mechanism.
附图说明Description of drawings
图1是本发明的工作状态图，Fig. 1 is a working state figure of the present invention,
图2是试件补偿机构实施例一的结构示意图，Fig. 2 is a schematic structural view of Embodiment 1 of the test piece compensation mechanism,
图3是试件补偿机构实施例二的结构示意图，Fig. 3 is a structural schematic diagram of the second embodiment of the test piece compensation mechanism,
图4是试件补偿机构实施例三的结构示意图，Fig. 4 is a schematic structural view of the third embodiment of the test piece compensation mechanism,
图5是现有技术的结构示意图；Fig. 5 is the structural representation of prior art;
图中1是高压气瓶，Among the figure 1 is a high-pressure cylinder,
2是气体渗透单元，21是顶板，22是底板，23是钢套，230是进气口，24是混凝土试件，25是充气橡胶囊，26是PVC圆垫板一，27是PVC圆垫板二，28是渗透单元进气口，29是渗透单元出气口，2 is a gas permeation unit, 21 is a top plate, 22 is a bottom plate, 23 is a steel sleeve, 230 is an air inlet, 24 is a concrete specimen, 25 is an inflatable rubber bag, 26 is a PVC round backing plate, and 27 is a PVC round pad Plate two, 28 is the air inlet of the permeation unit, and 29 is the air outlet of the permeation unit,
3是气体流量计，3 is a gas flow meter,
4是试件补偿机构，4 is the specimen compensation mechanism,
41是套筒，411是气路，412是气囊一，413是气孔，414是气囊二，415是嵌槽，41 is a sleeve, 411 is an air circuit, 412 is air bag one, 413 is an air hole, 414 is air bag two, 415 is an embedding groove,
421是柔性挡环一，422是柔性挡环二，423是密封圈，421 is a flexible retaining ring one, 422 is a flexible retaining ring two, 423 is a sealing ring,
43是圆筒，431是柔性凸起，432是弹簧，43 is a cylinder, 431 is a flexible protrusion, and 432 is a spring,
5是气路开关，6是减压阀；5 is an air circuit switch, and 6 is a pressure reducing valve;
图5中箭头代表充气橡胶囊充气后的状态。Arrows in Fig. 5 represent the state after the inflatable rubber bag is inflated.
具体实施方式Detailed ways
本发明如图1-4所示，包括高压气瓶1、气体渗透单元2和气体流量计3；所述气体渗透单元包括顶板21、底板22、钢套23、混凝土试件24和环形充气橡胶囊25，所述钢套连接在顶板和底板之间形成测试腔，所述混凝土试件和充气橡胶囊分别位于测试腔内，所述混凝土试件和顶板之间设有PVC圆垫板一，混凝土试件和底板之间设有PVC圆垫板二，所述混凝土试件和PVC圆垫板一、二位于充气橡胶囊内（使得充气橡胶囊包裹混凝土试件和上、下PVC圆垫板）；As shown in Figures 1-4, the present invention comprises a high-pressure gas cylinder 1, a gas permeation unit 2 and a gas flow meter 3; the gas permeation unit comprises a top plate 21, a bottom plate 22, a steel sleeve 23, a concrete specimen 24 and an annular inflatable rubber Bag 25, the steel sleeve is connected between the top plate and the bottom plate to form a test cavity, the concrete sample and the inflatable rubber bag are respectively located in the test cavity, a PVC circular backing plate 1 is arranged between the concrete sample and the top plate, A PVC round backing plate 2 is arranged between the concrete test piece and the bottom plate, and the concrete test piece and the PVC round backing plates 1 and 2 are located in the inflatable rubber bag (so that the inflatable rubber bag wraps the concrete test piece and the upper and lower PVC round backing plates );
所述钢套上设有连通充气橡胶气囊的进气口230，所述进气口通过气管连通高压气瓶，The steel sleeve is provided with an air inlet 230 connected to an inflatable rubber airbag, and the air inlet is connected to a high-pressure gas cylinder through a trachea.
所述底板和PVC圆垫板二上设有渗透单元进气口28，所述顶板和PVC圆垫板一上设有渗透单元出气口29，所述渗透单元进气口通过气管连通高压气瓶，所述渗透单元出气口通过气管连通气体流量计；工作时，气管上设置气路开关5便于控制启闭，设置减压阀6便于控制气体压力。The base plate and the PVC round backing plate two are provided with a permeation unit air inlet 28, and the top plate and the PVC round backing plate are provided with a permeation unit air outlet 29, and the permeation unit air inlet is connected to a high-pressure gas cylinder through a trachea , the gas outlet of the permeation unit is connected to the gas flow meter through the trachea; when working, the gas circuit switch 5 is set on the trachea to control the opening and closing, and the pressure reducing valve 6 is set to control the gas pressure.
所述充气橡胶囊的内侧设有试件补偿机构4，所述试件补偿机构用于包裹混凝土试件。The inner side of the inflatable rubber bag is provided with a sample compensation mechanism 4, and the sample compensation mechanism is used to wrap the concrete sample.
本发明在工作中，通过顶板、钢套和底板形成密闭的测试腔，将混凝土试件放置在测试腔内，混凝土试件的上、下方分别设置PVC圆垫板一、二，将其包裹至充气橡胶囊内，首先，充气橡胶囊通过高压气瓶进行充气，实现密封；In the work of the present invention, a closed test cavity is formed by the top plate, steel sleeve and bottom plate, and the concrete test piece is placed in the test cavity, and PVC round backing plates 1 and 2 are respectively arranged on the top and bottom of the concrete test piece, and they are wrapped in In the inflatable rubber bag, firstly, the inflatable rubber bag is inflated by a high-pressure cylinder to achieve sealing;
然后，高压气瓶通过底板和PVC圆垫板二上的渗透单元进气口进气动作，再通过顶板和PVC圆垫板一上的渗透单元出气口出气，通过气体流量计进行测试；Then, the high-pressure gas cylinder enters the air through the air inlet of the permeation unit on the bottom plate and the second PVC round backing plate, and then exits through the air outlet of the permeation unit on the top plate and the first PVC round backing plate, and is tested by the gas flow meter;
通过设置试件补偿机构，避免破坏混凝土试件，同时，提高测试的密封性。By setting the sample compensation mechanism, the damage to the concrete sample is avoided, and at the same time, the sealing performance of the test is improved.
本发明中的混凝土试件为圆饼状，上、下分别设置PVC圆垫板一、二，通过设置试件补偿机构，提高混凝土试件的密封可靠性。The concrete test piece in the present invention is in the shape of a round cake, and PVC round backing plates 1 and 2 are arranged on the upper and lower sides respectively, and the sealing reliability of the concrete test piece is improved by setting a test piece compensation mechanism.
所述试件补偿机构包括环形套筒41，所述套筒内设有气路411，所述套筒的中间外侧设有连通气路的环形气囊一412，所述底板上设有连通气路的气孔413，所述气孔通过气管连通高压气瓶；The test piece compensation mechanism includes an annular sleeve 41, an air passage 411 is provided in the sleeve, an annular air bag 412 communicating with the air passage is provided on the outside of the middle of the sleeve, and an air passage is provided on the bottom plate The stomata 413 are connected to the high-pressure gas cylinder through the trachea;
所述套筒用于包裹混凝土试件和PVC圆垫板一、二。The sleeve is used to wrap the concrete test piece and the PVC round backing plates 1 and 2.
通过设置套筒，高压气瓶对套筒上的气囊一进行充气，使其作用于充气橡胶囊的中间，这样，充气橡胶囊的中间内凹，避免对混凝土试件的损坏；两端向外凸起，使其通过套筒可靠接触PVC圆垫板一、二，提高密封性。By setting the sleeve, the high-pressure gas cylinder inflates the air bag on the sleeve to make it act on the middle of the inflatable rubber bag, so that the middle of the inflatable rubber bag is concave to avoid damage to the concrete specimen; the two ends are outward The protrusion makes it reliably contact the PVC round backing plates 1 and 2 through the sleeve to improve the sealing performance.
所述套筒的两端内侧分别设有环形气囊二414，所述PVC圆垫板一和PVC圆垫板二上分别设有环形嵌槽415，所述气囊二连通气路，所述气囊二适配地设在嵌槽内。The inner sides of both ends of the sleeve are respectively provided with annular airbag two 414, and the PVC round backing plate one and the PVC round backing plate two are respectively provided with annular slots 415, and the two airbags communicate with the air path, and the two airbags are connected with each other. Fittingly set in the embedded groove.
通过设置气囊二与嵌槽的配合，一方面，使得定位可靠；另一方面，使得套筒和PVC圆垫板一、二之间密封性更好，保证混凝土试件测试的可靠性。By setting the cooperation between the second air bag and the embedded groove, on the one hand, the positioning is reliable; on the other hand, the sealing between the sleeve and the first and second PVC circular backing plates is better, so as to ensure the reliability of the test of the concrete specimen.
所述试件补偿机构为：所述PVC圆垫板一的底面设有柔性挡环一421，所述PVC圆垫板二的顶面设有柔性挡环二422，所述柔性挡环一和柔性挡环二均呈锥台状、且对称设置，所述柔性挡环一接触柔性挡环二，使得PVC圆垫板一和PVC圆垫板二之间形成密封腔，所述混凝土试件位于密封腔内。The sample compensation mechanism is as follows: the bottom surface of the PVC round backing plate 1 is provided with a flexible stop ring 1 421, the top surface of the PVC round backing plate 2 is provided with a flexible stop ring 2 422, and the flexible stop ring 1 and The two flexible retaining rings are both frustum-shaped and symmetrically arranged. The flexible retaining ring one contacts the flexible retaining ring two, so that a sealed cavity is formed between the PVC circular backing plate one and the PVC circular backing plate two. The concrete specimen is located at inside the sealed chamber.
柔性环板一和柔性挡环二的结构相同，通过设置两者接触形成密封腔，一方面，提高密封性；另一方面，充气橡胶囊在充气后，用于挤压柔性挡环一、二，避免损坏混凝土试件，同时，进一步保证密封腔的密封性。柔性挡环一、二可为橡胶环，方便加工。The structure of the flexible ring plate 1 and the flexible retaining ring 2 is the same, and the sealing cavity is formed by setting the two in contact. On the one hand, the sealing performance is improved; on the other hand, the inflatable rubber bag is used to squeeze the flexible retaining ring 1 and 2 after inflating. , to avoid damage to the concrete specimen, and at the same time, further ensure the sealing of the sealed cavity. The first and second flexible retaining rings can be rubber rings, which are convenient for processing.
所述柔性挡环一和柔性挡环二的端面之间设有密封圈423。A sealing ring 423 is provided between the end faces of the first flexible retaining ring and the second flexible retaining ring.
通过设置密封圈，保证密封性，提高测试的可靠性。By setting the sealing ring, the sealing is guaranteed and the reliability of the test is improved.
所述试件补偿机构包括圆筒43，所述圆筒用于包裹混凝土试件和PVC圆垫板一、二，所述圆筒的中间设有环形柔性凸起431，所述柔性凸起内设有弹簧432。The sample compensation mechanism includes a cylinder 43, which is used to wrap the concrete sample and the PVC round backing plates 1 and 2. An annular flexible protrusion 431 is arranged in the middle of the cylinder, and the flexible protrusion 431 is inside the flexible protrusion. A spring 432 is provided.
工作中，充气橡胶囊充气后，其中间直接作用与柔性凸起，这样，通过弹簧将其中间形成内凹，避免对混凝土试件的损坏；两端向外凸起，使其通过套筒可靠接触PVC圆垫板一、二，提高密封性。柔性凸起如橡胶凸起，可用于放置弹簧。During work, after the inflatable rubber bag is inflated, the middle of it directly acts on the flexible protrusion, so that the middle of it is concaved by the spring to avoid damage to the concrete specimen; the two ends protrude outward to make it pass through the sleeve reliably. Contact PVC round pads 1 and 2 to improve airtightness. Flexible bumps, such as rubber bumps, can be used to place springs.
本发明具体分为试验气路系统与密封气路系统，高压气瓶通过气管连通渗透单元进气口进气，经过混凝土试件，再从渗透单元出气口出气通过气管连通气体流量计；通过精密调压阀（如减压阀6）精确控制气路系统的压力值，试验气路系统中气体在一定压力下渗透通过混凝土试件。充气橡胶气囊在一定气体压力下膨胀，同时，通过设置试件补偿机构完全包裹于混凝土试件，避免混凝土试件损坏，同时，防止试验气路中气体从侧面溢出，进而达到实现优异的密封效果与稳态的气体渗透过程，提高试验结果的真实度与可靠性。The invention is specifically divided into a test gas circuit system and a sealed gas circuit system. The high-pressure gas cylinder is connected to the air inlet of the permeation unit through the trachea, passes through the concrete specimen, and then exits from the gas outlet of the permeation unit and connects to the gas flowmeter through the trachea; The pressure regulating valve (such as the pressure reducing valve 6) accurately controls the pressure value of the gas circuit system, and the gas in the test gas circuit system penetrates through the concrete specimen under a certain pressure. The inflatable rubber airbag expands under a certain gas pressure. At the same time, the concrete specimen is completely wrapped by setting the specimen compensation mechanism to avoid damage to the concrete specimen. At the same time, it prevents the gas in the test gas circuit from overflowing from the side, thereby achieving an excellent sealing effect. And the steady-state gas permeation process improves the authenticity and reliability of the test results.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810502469.3A CN108717038B (en) | 2018-05-23 | 2018-05-23 | A kind of concrete gas permeability resistance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810502469.3A CN108717038B (en) | 2018-05-23 | 2018-05-23 | A kind of concrete gas permeability resistance test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108717038A true CN108717038A (en) | 2018-10-30 |
| CN108717038B CN108717038B (en) | 2023-11-24 |
Family
ID=63900458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810502469.3A Active CN108717038B (en) | 2018-05-23 | 2018-05-23 | A kind of concrete gas permeability resistance test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108717038B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987760A (en) * | 2019-12-12 | 2020-04-10 | 中国建筑材料科学研究总院有限公司 | Test method for resistance to gas permeation of materials |
| CN111337379A (en) * | 2020-02-13 | 2020-06-26 | 中国海洋大学 | Ocean sediment gas permeability measuring device and using method thereof |
| CN111366522A (en) * | 2020-04-20 | 2020-07-03 | 苏交科集团股份有限公司 | Test collection system of concrete gas permeability data |
| CN111458275A (en) * | 2020-04-24 | 2020-07-28 | 河北天恒伟业试验仪器有限公司 | Airbag sealing device for penetration test of concrete block |
| CN111855527A (en) * | 2020-07-15 | 2020-10-30 | 西安理工大学 | Device and method for detecting gas permeability of damaged concrete |
| CN112362501A (en) * | 2020-11-19 | 2021-02-12 | 武汉科技大学 | Seepage-proofing structure and stress seepage coupling shear box with same |
| CN113418832A (en) * | 2021-06-22 | 2021-09-21 | 敦煌研究院 | Moisture permeable cup with flexible wall sealing structure for geotechnical cultural relics and moisture permeability testing method |
| CN118758834A (en) * | 2024-07-29 | 2024-10-11 | 常州工学院 | Auxiliary detection equipment for gas permeability of unsaturated concrete |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2031160A (en) * | 1978-10-05 | 1980-04-16 | Derritron Electronics Ltd | Environmental testing apparatus |
| JP2004219407A (en) * | 2002-12-25 | 2004-08-05 | Matsushita Electric Ind Co Ltd | Gas permeability measuring method and gas permeability measuring apparatus |
| US20050191758A1 (en) * | 2002-08-26 | 2005-09-01 | John Pether | Soil test box |
| CN201583477U (en) * | 2010-01-15 | 2010-09-15 | 清华大学 | Concrete gas permeability test system |
| CN201732048U (en) * | 2010-06-01 | 2011-02-02 | 新疆北新路桥建设股份有限公司 | Porous concrete water permeability testing instrument |
| CN105092385A (en) * | 2015-08-06 | 2015-11-25 | 山东科技大学 | High-pressure water sealing device for rock sample and use method |
| CN206321544U (en) * | 2016-11-16 | 2017-07-11 | 三峡大学 | A kind of concrete water resistant oozes experiment test specimen sealing device |
| CN206609762U (en) * | 2017-03-29 | 2017-11-03 | 镇江市建科工程质量检测中心有限公司 | A kind of detection means of die trial mechanism and concrete permeability resistance |
| CN207058837U (en) * | 2017-06-13 | 2018-03-02 | 四川通德商品混凝土有限公司 | A kind of energy-efficient concrete block moulding machine |
| CN208155806U (en) * | 2018-05-23 | 2018-11-27 | 中国建筑材料科学研究总院有限公司 | Agent on crack resistance of concrete gas permeability experimental rig |
-
2018
- 2018-05-23 CN CN201810502469.3A patent/CN108717038B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2031160A (en) * | 1978-10-05 | 1980-04-16 | Derritron Electronics Ltd | Environmental testing apparatus |
| US20050191758A1 (en) * | 2002-08-26 | 2005-09-01 | John Pether | Soil test box |
| JP2004219407A (en) * | 2002-12-25 | 2004-08-05 | Matsushita Electric Ind Co Ltd | Gas permeability measuring method and gas permeability measuring apparatus |
| CN201583477U (en) * | 2010-01-15 | 2010-09-15 | 清华大学 | Concrete gas permeability test system |
| CN201732048U (en) * | 2010-06-01 | 2011-02-02 | 新疆北新路桥建设股份有限公司 | Porous concrete water permeability testing instrument |
| CN105092385A (en) * | 2015-08-06 | 2015-11-25 | 山东科技大学 | High-pressure water sealing device for rock sample and use method |
| CN206321544U (en) * | 2016-11-16 | 2017-07-11 | 三峡大学 | A kind of concrete water resistant oozes experiment test specimen sealing device |
| CN206609762U (en) * | 2017-03-29 | 2017-11-03 | 镇江市建科工程质量检测中心有限公司 | A kind of detection means of die trial mechanism and concrete permeability resistance |
| CN207058837U (en) * | 2017-06-13 | 2018-03-02 | 四川通德商品混凝土有限公司 | A kind of energy-efficient concrete block moulding machine |
| CN208155806U (en) * | 2018-05-23 | 2018-11-27 | 中国建筑材料科学研究总院有限公司 | Agent on crack resistance of concrete gas permeability experimental rig |
Non-Patent Citations (2)
| Title |
|---|
| YINGHONG QIN ET AL.: "Gas permeability of pervious concrete and its implications on the application of pervious pavements", 《MEASUREMENT》, pages 104 - 110 * |
| 庞超明 等: "混凝土气体渗透性试验方法", 《东南大学学报》, vol. 44, no. 6, pages 1235 - 1239 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987760A (en) * | 2019-12-12 | 2020-04-10 | 中国建筑材料科学研究总院有限公司 | Test method for resistance to gas permeation of materials |
| CN111337379A (en) * | 2020-02-13 | 2020-06-26 | 中国海洋大学 | Ocean sediment gas permeability measuring device and using method thereof |
| CN111366522A (en) * | 2020-04-20 | 2020-07-03 | 苏交科集团股份有限公司 | Test collection system of concrete gas permeability data |
| CN111366522B (en) * | 2020-04-20 | 2020-10-30 | 苏交科集团股份有限公司 | Test collection system of concrete gas permeability data |
| CN111458275A (en) * | 2020-04-24 | 2020-07-28 | 河北天恒伟业试验仪器有限公司 | Airbag sealing device for penetration test of concrete block |
| CN111855527A (en) * | 2020-07-15 | 2020-10-30 | 西安理工大学 | Device and method for detecting gas permeability of damaged concrete |
| CN112362501A (en) * | 2020-11-19 | 2021-02-12 | 武汉科技大学 | Seepage-proofing structure and stress seepage coupling shear box with same |
| CN113418832A (en) * | 2021-06-22 | 2021-09-21 | 敦煌研究院 | Moisture permeable cup with flexible wall sealing structure for geotechnical cultural relics and moisture permeability testing method |
| CN118758834A (en) * | 2024-07-29 | 2024-10-11 | 常州工学院 | Auxiliary detection equipment for gas permeability of unsaturated concrete |
| CN118758834B (en) * | 2024-07-29 | 2025-02-11 | 常州工学院 | Auxiliary detection equipment for gas permeability of unsaturated concrete |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108717038B (en) | 2023-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108717038A (en) | A kind of agent on crack resistance of concrete gas permeability experimental rig and method | |
| CN204718757U (en) | A kind of filter cleaner leak locator | |
| CN103712744B (en) | Positive step force pilot system | |
| CN204647715U (en) | Ball valve air tightness test block head | |
| CN103868666A (en) | Exhaust manifold gas detection machine and detection method thereof | |
| CN107607301B (en) | A detection device and detection method of a battery safety valve | |
| CN105003713A (en) | Sealing end cover of ball valve | |
| CN103728095A (en) | Negative step force testing system | |
| CN102928183A (en) | High-low-pressure sealed one-step detecting method and detecting device of liquefied petroleum gas cylinder valve | |
| CN103940556A (en) | Sealing detection device and method of one-way valve | |
| CN208155806U (en) | Agent on crack resistance of concrete gas permeability experimental rig | |
| CN204241177U (en) | A kind of seal air-tightness pick-up unit | |
| US3906782A (en) | Isostatic crush strength test system | |
| CN106768731A (en) | The air tightness testing method and its equipment of a kind of filter element of water purifier cylinder | |
| JP2006177810A (en) | Inspection device and inspection method | |
| CN117571212B (en) | Sealing ring durability test system under high-pressure gas circulation condition | |
| CN208155531U (en) | A kind of no air bag self-sealing test device | |
| CN203519269U (en) | Sealing performance detecting tool for water pump of engine | |
| CN112628436B (en) | A high-pressure bursting disc clamping device and a sealing detection method thereof | |
| CN217505134U (en) | Sealing test device of bellows | |
| CN202916060U (en) | Liquefied petroleum gas cylinder valve high-low pressure sealing one-step detection method detection apparatus | |
| CN107314869B (en) | A kind of air tightness detection device of casing joint | |
| CN104458163A (en) | Valve leakage detection device and detection method thereof | |
| CN214093192U (en) | High-pressure rupture disk clamping device | |
| CN206459799U (en) | A kind of air-tightness testing device of filter element of water purifier cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |