CN115124313A - Novel anti-crack phosphogypsum plastering mortar and research and test device thereof - Google Patents
Novel anti-crack phosphogypsum plastering mortar and research and test device thereof Download PDFInfo
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- CN115124313A CN115124313A CN202210582488.8A CN202210582488A CN115124313A CN 115124313 A CN115124313 A CN 115124313A CN 202210582488 A CN202210582488 A CN 202210582488A CN 115124313 A CN115124313 A CN 115124313A
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- plastering mortar
- phosphogypsum
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; ceramics; glass; bricks
- G01N33/383—Concrete, cement
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention provides novel anti-crack phosphogypsum plastering mortar and a research and test device thereof. The novel anti-crack phosphogypsum plastering mortar comprises the following raw materials in parts by weight: 300 portions of ardealite powder, 100 portions of common cement, 150 portions of calcium hydroxide, 130 portions of perlite, 80-90 portions of hydroxypropyl methyl cellulose ether and 200 portions of water. The novel anti-crack phosphogypsum plastering mortar provided by the invention is simple in raw material composition, does not need to be prepared by using an auxiliary additive, further greatly reduces the production difficulty of the anti-crack phosphogypsum plastering mortar, is suitable for mass production, and simultaneously, the raw materials are stable in chemical property and do not have secondary reaction with each other, so that the integral crack resistance is obviously improved, the novel anti-crack phosphogypsum plastering mortar can be well adapted to severe use environments, and the stability is higher.
Description
Technical Field
The invention relates to the field of plastering mortar, in particular to novel anti-crack phosphogypsum plastering mortar and a research and test device thereof.
Background
The plastering mortar is a general name of a kind of mortar which is applied to be coated on a building base surface to achieve leveling or provide protection, and is divided into field stirring mortar and premixed dry-mixed plastering mortar according to different operations, wherein the premixed dry-mixed plastering mortar is one of commercial mortars, and the dry-mixed plastering mortar is prepared from cement, a filler, an aggregate and various functional additives; the plastering mortar with different functions is applied to different wall base materials.
The phosphogypsum plastering mortar belongs to one kind of plastering mortar, is prepared by adding a phosphogypsum raw material into common plastering mortar, and can obviously improve various performances of the plastering mortar.
In the related technology, in order to improve the functionality of the phosphogypsum mortar, some auxiliary additives, such as a water reducing agent, an anticoagulant, a vegetable protein retarder and the like, are added, and after the auxiliary additives are added, the production difficulty of the phosphogypsum mortar is increased, and the phosphogypsum mortar has the problems of cracking, viscosity reduction and the like due to mutual reaction among raw materials in severe environments which are humid for a long time and are at a high temperature for a long time.
Therefore, it is necessary to provide a novel anti-crack phosphogypsum plastering mortar and a research and test device thereof to solve the technical problems.
Disclosure of Invention
The invention provides novel anti-cracking phosphogypsum plastering mortar, which solves the problem that the phosphogypsum plastering mortar is easy to crack.
In order to solve the technical problems, the novel anti-crack phosphogypsum plastering mortar provided by the invention comprises the following raw materials in parts by weight:
the feed comprises the following raw materials in parts by weight: 300 portions of ardealite powder, 100 portions of common cement, 150 portions of calcium hydroxide, 130 portions of perlite, 80-90 portions of hydroxypropyl methyl cellulose ether and 200 portions of water.
Preferably, the novel anti-crack phosphogypsum plastering mortar comprises the following raw materials in parts by weight: 300 parts of phosphogypsum powder, 100 parts of ordinary cement, 100 parts of calcium hydroxide, 80 parts of perlite, 1 part of hydroxypropyl methyl cellulose ether and 150 parts of water.
A research test apparatus comprising:
a supporting seat;
the strength testing mechanism is arranged on the supporting seat and comprises a base, a movable table, a first electric telescopic rod, a top plate, a supporting spring, an extrusion block and a second electric telescopic rod, wherein the movable table is slidably mounted on the inner side of the supporting seat, the first electric telescopic rod is mounted on the supporting seat, and the telescopic end of the first electric telescopic rod is fixedly mounted with the bottom of the supporting seat;
the test bed comprises a base, a test bed and a test bed, wherein rectangular cavities are formed in two sides of the base, and the test bed is mounted on the base through the rectangular cavities;
the top plate is fixedly arranged at the top of the movable table, the movable plate is slidably arranged on the top plate, and the bottom of the movable plate is provided with an inclined plane block structure; the supporting spring is installed on one side of the movable plate, the second electric telescopic rod is installed in the movable table, the telescopic end of the second electric telescopic rod is connected with the extrusion block, and the extrusion block is attached to the inclined plane block structure.
Preferably, the two movable plates are in a close fit state, one side of each movable plate extends into the rectangular cavity, and the top plate is used for supporting the bottom of the phosphogypsum plastering mortar workpiece to be tested.
Preferably, the supporting spring is located between the slope block structure and the movable platform, and when the movable plate is in the closed state, the supporting spring is in a natural extension state.
Preferably, hardness testing mechanism is installed at the top of supporting seat, just hardness testing mechanism is located directly over the movable table, hardness testing mechanism includes the hydraulic stem, rotates motor and test piece, it installs to rotate the motor the flexible end of hydraulic stem, the test piece install in the output of rotating the motor, the test piece includes two test heads and position control subassembly.
Preferably, the both sides at base top all are provided with the spread groove, rectangle cavity front side on the base is open state.
Preferably, research testing arrangement still includes protection machanism, protection machanism includes two guard plates, two gears and two sets of spacing pulleys, two the guard plate all passes through spacing pulley slidable mounting in the both sides at base top, the gear install in one side of base.
Preferably, one side of the protection plate opposite to the top plate is provided with a sawtooth groove, the gear is respectively meshed with the protection plate and the top plate, and one side of one protection plate extends into the supporting seat.
Preferably, when the two movable plates are unfolded outwards, the two protection plates are close to each other to a closed state.
Compared with the related art, the novel anti-crack phosphogypsum plastering mortar and the research and test device thereof have the following beneficial effects:
the novel anti-cracking phosphogypsum plastering mortar provided by the invention is simple in raw material composition, is prepared without using auxiliary additives, further greatly reduces the production difficulty of the anti-cracking phosphogypsum plastering mortar, is suitable for mass production, is stable in chemical properties of the raw materials, does not react with each other for the second time, obviously improves the overall crack resistance, can well adapt to severe use environments, and is higher in stability.
Drawings
FIG. 1 is a schematic structural diagram of a research test apparatus according to the present invention;
FIG. 2 is a schematic structural view of the top plate and the movable plate shown in FIG. 1;
FIG. 3 is an exploded view of the top plate and the movable plate shown in FIG. 2;
fig. 4 is a schematic structural diagram of a research testing device provided by the invention when testing a phosphogypsum plastering mortar workpiece;
FIG. 5 is a schematic view of the internal structure of the research test apparatus shown in FIG. 4;
FIG. 6 is a schematic diagram of the strength testing mechanism shown in FIG. 5 when testing a phosphogypsum plastering mortar workpiece;
FIG. 7 is a schematic structural diagram of a research test apparatus according to a fifth embodiment of the present invention;
FIG. 8 is a schematic view of the internal structure of the research test apparatus shown in FIG. 7;
fig. 9 is an exploded view of the shielding mechanism and the strength testing mechanism shown in fig. 7.
Reference numerals in the figures
1. A supporting seat;
2. a strength testing mechanism;
21. the device comprises a base, 22, a movable table, 23, a first electric telescopic rod, 24, a top plate, 25, a supporting spring, 26, an extrusion block, 27, a second electric telescopic rod, 28 and a movable plate;
3. a hardness testing mechanism;
31. a hydraulic rod 32, a rotating motor 33 and a test piece;
4. a protection mechanism;
41. a protection plate 42, a gear 43 and a limiting pulley;
5. a rolling assembly;
51. a rolling wheel 52, an elastic member;
6. ardealite plastering mortar work piece.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Example 1
The novel anti-crack phosphogypsum plastering mortar comprises the following raw materials:
the feed comprises the following raw materials in parts by weight: 300 parts of phosphogypsum powder, 100 parts of ordinary cement, 100 parts of calcium hydroxide, 80 parts of perlite, 1 part of hydroxypropyl methyl cellulose ether and 150 parts of water.
Example 2
The feed comprises the following raw materials in parts by weight: 350 parts of phosphogypsum powder, 125 parts of ordinary cement, 115 parts of calcium hydroxide, 85 parts of perlite, 3 parts of hydroxypropyl methyl cellulose ether and 170 parts of water.
Example 3
The feed comprises the following raw materials in parts by weight: 400 parts of phosphogypsum powder, 150 parts of common cement, 130 parts of calcium hydroxide, 90 parts of perlite, 5 parts of hydroxypropyl methyl cellulose ether and 200 parts of water.
For the test workpieces made of the novel anti-crack phosphogypsum plastering mortar prepared in the embodiments 1 to 3, 100 groups of test samples are respectively selected, and the phosphogypsum plastering mortar samples are tested for various mechanical properties and water retention rate according to the industrial standard GB/T28627-2012 plastering Gypsum method; performing water absorption test according to JC/T984-2011 Polymer cement waterproof mortar, performing unification treatment on the data of all the examples based on the data of the example 1, and taking an average value of the finally obtained numerical values, specifically referring to Table 1;
| compressive strength (MPa) | Flexural strength (MPa) | Water retention (%) | Water absorption (%) | |
| Example 1 | 7.5 | 10.3 | 90.2 | 3.2 |
| Example 2 | 8.3 | 9.4 | 88 | 2.9 |
| Example 3 | 8.6 | 11.8 | 91.3 | 2.78 |
| Standard requirements | ≧1.0 | ≧2.5 | ≧60 | ≦6.0 |
As can be seen from the above table, the compressive strength, the flexural strength, the water retention rate and the water absorption of the anti-crack phosphogypsum plastering mortar workpiece prepared in example 3 are all higher than those of the example, so that the formula of the novel anti-crack phosphogypsum plastering mortar provided in example 3 is the optimal choice.
Compared with the related technology, the novel anti-crack phosphogypsum plastering mortar provided by the invention has the following beneficial effects:
the anti-cracking phosphogypsum plastering mortar is simple in raw material composition, does not need to be prepared by using an auxiliary additive, further greatly reduces the difficulty of production of the anti-cracking phosphogypsum plastering mortar, is suitable for mass production, is stable in chemical properties of the raw materials, does not have secondary reaction with each other, obviously improves the overall crack resistance, can well adapt to severe use environments, and is higher in stability.
Referring to fig. 1 to 6, in order to conveniently test the performance of the novel anti-crack phosphogypsum plastering mortar provided by the present invention, the novel anti-crack phosphogypsum plastering mortar is firstly manufactured into a test workpiece in a long plate shape, so the present invention further provides a research and test device for testing the test workpiece in a specific shape manufactured by the novel anti-crack phosphogypsum plastering mortar, wherein the research and test device comprises:
a support base 1;
the strength testing mechanism 2 is arranged on the supporting seat 1, the strength testing mechanism 2 comprises a base 21, a movable table 22, a first electric telescopic rod 23, a top plate 24, a movable plate 28, a supporting spring 25, an extrusion block 26 and a second electric telescopic rod 27, the movable table 22 is slidably mounted on the inner side of the supporting seat 1, the first electric telescopic rod 23 is mounted on the supporting seat 1, and the telescopic end of the first electric telescopic rod 23 is fixedly mounted with the bottom of the supporting seat 1;
rectangular cavities are formed in the two sides of the base 21, and a phosphogypsum plastering mortar workpiece 6 to be tested is installed on the base 21 through the rectangular cavities;
the top plate 24 is fixedly installed at the top of the movable table 22, the movable plate 28 is slidably installed on the top plate 24, and the bottom of the movable plate 28 is provided with a slope block structure; the supporting spring 25 is installed on one side of the movable plate 28, the second electric telescopic rod 27 is installed in the movable table 22, the telescopic end of the second electric telescopic rod 27 is connected with the extrusion block 26, and the extrusion block 26 is attached to the inclined plane block structure.
The bottom of the base 21 is connected with the supporting seat 1, so that the whole strength testing mechanism 2 is effectively connected with the supporting seat 1;
the overall shape of the base 21 is U-shaped, the movable table 22 is positioned between the inner sides of the U-shaped base 21, and the U-shaped base 21 can limit the movable table 22 in the vertical direction, so that the movable table 22 can stably move on the base 21;
the rectangular cavities arranged on the base 21 are respectively positioned on the left side and the right side of the base, and when the phosphogypsum plastering mortar workpiece 6 to be tested is installed, the rectangular cavities on the left side are horizontally installed in a sliding mode.
The telescopic end of the first electric telescopic rod 23 is connected with the bottom of the movable table 22, the telescopic end is controlled to stretch through an external switch and is connected with the power supply unit inside the supporting seat 1, the movable table 22 can be driven to move in the vertical direction, and then the position of the movable table 22 is adjusted, so that the requirement of clamping different to-be-tested phosphogypsum plastering mortar workpieces 6 is met.
The top plate 24 is fixedly mounted with the top of the movable table 22 through screws, so that the movable table 22 can be conveniently detached and maintained;
the two movable plates 28 are arranged and are symmetrically arranged on the top plate 24 in the left-right direction, when the movable plate is in a normal use state, the two top plates 24 are kept in a tight closing state, and form a long plate structure which is sealed relatively with the top plate 24 to serve as a table top structure at the top of the movable table 22, and when a hardness test is carried out, the long plate structure is used as a bottom supporting structure for testing the phosphogypsum plastering mortar workpiece 6.
The number of the supporting springs 25 is two, and the supporting springs are disposed at one side of the movable plate 28, and mainly provide horizontal elastic support for the movable plate 28, so as to drive the movable plate 28 to return.
The extrusion block 26 is set as an arc-shaped block, the arc surface of the extrusion block is respectively attached to the two inclined plane blocks, and the arc surface and the inclined plane are matched, so that when the extrusion block 26 moves upwards, the two inclined plane blocks can be extruded simultaneously to move horizontally, and finally, the two movable plates 28 are unfolded.
In order to ensure that the movable plate 28 can be smoothly unfolded, a certain height difference is arranged between the top of the movable plate 28 and the top of the top plate 24, so that the movable plate 28 can still horizontally move when the top plate 24 is in contact with the phosphogypsum plastering mortar workpiece 6 to be tested.
The extrusion block 26 is mainly used for extruding the phosphogypsum plastering mortar to be tested to finally break the phosphogypsum plastering mortar to test the compressive strength of the phosphogypsum plastering mortar, and the arc-shaped design enables the contact surface of the phosphogypsum plastering mortar to be tested with the phosphogypsum plastering mortar workpiece 6 to be smoother, enables the acting force to be relatively uniform, avoids the phosphogypsum plastering mortar workpiece 6 to be tested from being damaged in a short time, and is convenient for people to record test data.
The second electric telescopic rod 27 is connected with the inside of the extrusion block 26, and can drive the extrusion block 26 to move upwards, so that the phosphogypsum plastering mortar workpiece 6 to be tested can be extruded finally, and the extension of the workpiece is controlled by an external control switch.
The two movable plates 28 are in a close fit state, one side of each movable plate 28 extends into the rectangular cavity, and the top plate 24 is used for supporting the bottom of the phosphogypsum plastering mortar workpiece 66 to be tested.
The supporting spring 25 is located between the ramp block structure and the movable table 22, and when the movable plate 28 is in the closed state, the supporting spring 25 is in a natural extension state.
Hardness testing mechanism 3 is installed at the top of supporting seat 1, just hardness testing mechanism 3 is located directly over movable table 22, hardness testing mechanism 3 includes hydraulic stem 31, rotates motor 32 and test piece 33, it installs to rotate motor 32 the flexible end of hydraulic stem 31, test piece 33 install in rotate motor 32's output, test piece 33 includes two test heads and position control subassembly.
The hydraulic rod 31 is connected with a protective shell outside the rotating motor 32 and can drive the rotating motor 32 to move in the vertical direction;
the output end of the rotating motor 32 faces downwards and is connected with the test piece 33, and the rotating motor can drive the test piece 33 to rotate in the horizontal direction, so that the angle adjustment of the test piece 33 is realized;
the test piece 33 is mainly used for testing the surface hardness of the ardealite plastering mortar workpiece 6 to be tested, the test head is a conventional mortar resiliometer, and the test efficiency of the test piece 33 can be improved and the test time can be shortened by arranging two test heads;
the position adjusting assembly is used for adjusting the distance between the two testing heads, so that the testing piece 33 can test the ardealite plastering mortar workpiece 6 to be tested in different circumferences on the surface.
The research testing device is also provided with a data recording and calculating module, wherein the strength testing mechanism 2 and the hardness testing mechanism 3 are respectively provided with a sensing unit which is respectively connected with the data recording module, so that the related data of the phosphogypsum plastering mortar workpiece 6 are recorded and then sent to the calculating module, and the related performance data and the chart are obtained through the calculating module.
In the embodiment, the research testing device respectively tests the compressive strength and the hardness of the phosphogypsum plastering mortar workpiece 6 by arranging the strength testing mechanism 2 and the hardness testing mechanism 3, and finally obtains the performance data of the phosphogypsum plastering mortar workpiece 6 by combining the compressive strength and hardness testing data;
the strength testing mechanism 2 is arranged, so that the basic extrusion strength testing function is achieved, meanwhile, the movable table 22 and the first electric telescopic rod 23 are arranged, the phosphogypsum plastering mortar workpiece 6 mounted on the base 21 can be effectively fixed, the phosphogypsum plastering mortar workpiece 6 with different thicknesses can be well adapted, a clamping mechanism is not required to be independently used for fixing the phosphogypsum plastering mortar workpiece 6, manual adjustment operation is not required during fixing, the fixing effect is stable and reliable, the structure of a research testing device is further simplified, and the use cost of the device is reduced;
meanwhile, after the hardness test is finished, the extrusion block 26 can be directly controlled to move upwards, so that the top of the extrusion block is finally contacted with the ardealite plastering mortar workpiece 6, the compressive strength test is carried out, the movable table 22 does not need to be turned over or subjected to position adjustment operation, the continuity between the hardness test and the strength test is further increased, longer waiting time is not needed in the middle, too much manual operation is not needed, the test operation is further simplified, the test is more convenient and easier to operate, and the working efficiency of researching and testing devices is improved.
The working principle of the research and test device provided by the embodiment is as follows:
the method comprises the following steps: when testing the phosphogypsum plastering mortar workpiece 6, mounting the phosphogypsum plastering mortar workpiece 6 on the base 21 through the rectangular cavity, and controlling the first electric telescopic rod 23 to extend to enable the movable table 22 to move upwards, so that the left side and the right side of the phosphogypsum plastering mortar workpiece 6 are respectively fixed between the movable table 22 and the rectangular space, and the bottom of the phosphogypsum plastering mortar workpiece is attached to the top of the top plate 24;
step two: then, starting a hardness test on the ardealite plastering mortar workpiece 6, controlling the hardness testing mechanism 3 to start, extending the hydraulic rod 31, driving the rotating motor 32 and the testing piece 33 to move downwards, finally enabling the testing head on the testing piece 33 to be in contact with the surface of the ardealite plastering mortar workpiece 6, shortening the hydraulic rod 31, enabling the testing head to reset upwards, and completing one test operation;
step three: then, rotating the rotating motor 32, adjusting the horizontal angle of the test piece 33, repeating the operation until all test points on the surface of the phosphogypsum plastering mortar workpiece 6 on the same circumference of the test head are tested, adjusting the distance between the two test heads by controlling the position adjusting assembly, shortening the test radius of the test head, and repeating the operation to test different positions of the phosphogypsum plastering mortar workpiece 6;
step four: after the hardness test is completed, the strength test is started, firstly, the second electric telescopic rod 27 is controlled to extend, the extrusion block 26 starts to move upwards, the two movable plates 28 are simultaneously extruded to expand towards the left side and the right side, the supporting spring 25 is simultaneously extruded on one side of the movable plate 28 to contract until the extrusion block 26 extends to the outside of the movable table 22 and contacts with the bottom of the phosphogypsum plastering mortar workpiece 6, the second electric telescopic rod 27 is continuously controlled to extend, the extrusion block 26 is continuously extruded on the phosphogypsum plastering mortar workpiece 6, the phosphogypsum plastering mortar workpiece 6 is finally bent and broken, the real-time state data of the phosphogypsum plastering mortar workpiece 6 is synchronously recorded through the recording module, and then the strength test operation is completed.
Fourth embodiment
Referring to fig. 7-9, a research test apparatus according to the first embodiment of the present invention, and a fourth embodiment of the present invention provides another research test apparatus, wherein the fourth embodiment does not hinder the independent implementation of the technical solution of the first embodiment.
Specifically, the difference between the provided research test device and the other research test device is as follows:
connecting grooves are formed in the two sides of the top of the base 21, and the front side of a rectangular cavity in the base 21 is in an open state;
still include protection machanism 4, protection machanism 4 includes two guard plates 41, two gears 42 and two sets of spacing pulleys 43, two guard plate 41 all passes through spacing pulley 43 slidable mounting in the both sides at base 21 top, gear 42 install in one side of base 21.
The connecting groove is used for being connected and installed with the protection plate 41, so that the protection plate 41 can be effectively installed at the top position of the base 21;
in this embodiment, the front side of the rectangular cavity is set to be open, and then the phosphogypsum plastering mortar workpiece 6 can be placed in the rectangular cavity at the front side of the base 21.
The two protection plates 41 are respectively positioned on the left side and the right side of the top of the base 21, and in the strength test, the two protection plates 41 are in a closed state and are arranged above the phosphogypsum plastering mortar workpiece 6, so that the protection effect is mainly achieved, fragments generated in the fracture of the phosphogypsum plastering mortar workpiece 6 can be prevented from upwards jumping out, the placed fragments can cause accidental injury to workers, and meanwhile, the protection effect can be achieved on the upper test piece 33;
in this embodiment, a buffer layer is disposed at the bottom of the protection plate 41, that is, the buffer layer may be made of a sponge material, a rubber material, or the like, and may buffer the debris to some extent, so as to reduce the damage to the bottom of the protection plate 41.
A set of spacing pulley 43 comprises two pulleys of front and back symmetry, and two pulleys are installed respectively in the front and back both sides of spread groove internal surface, through with the front and back both sides roll connection of guard plate 41, play limiting displacement to guard plate 41 for guard plate 41 can slide at the top horizontal direction of base 21.
The opposite sides of the protection plate 41 and the movable plate 28 are provided with sawtooth grooves, the gear 42 is respectively meshed with the protection plate 41 and the movable plate 28, and one side of the protection plate 41 extends into the support seat 1.
When the two movable plates 28 are unfolded outward, the two shielding plates 41 are brought close to each other to a closed state.
The two gears 42 are respectively located above the left and right sides of the base 21, and are respectively engaged with the protection plate 41 and the movable plate 28, so that the protection plate 41 is connected with the movable plate 28, and when the movable plate 28 is unfolded, the protection plate 41 can be synchronously driven to contract, thereby realizing linkage between the two.
It should be noted that, the research and test device is used for testing the phosphogypsum plastering mortar workpiece 6 to be tested with the same thickness, so that the size of the gear 42 is set, and the gear 42 can be just meshed with the movable plate 28 when the top plate 24 clamps the phosphogypsum plastering mortar workpiece 6 to be tested, thereby realizing the linkage operation between the movable plate 28 and the protection plate 41.
In the embodiment, the protection mechanism 4 is arranged to play a role in safety protection mainly during strength test;
mainly utilize the guard plate 41, the meshing sets up between fly leaf 28 and the gear 42, rise when extrudeing the piece 26 and extrude phosphogypsum plastering mortar work piece 6, make guard plate 41 close in step, form the protection barrier of phosphogypsum plastering mortar work piece 6 top, can effectually place the piece and upwards splash, play effective guard action to staff and test piece 33, security when further having increased the strength test, and after the test is accomplished, when extrusion piece 26 contracts, make guard plate 41 expand in step, very convenient when using, need not staff manual operation.
The working principle of the research and test device provided by the embodiment is as follows:
the method comprises the following steps: during the strength test, the second electric telescopic rod 27 extends the extrusion block 26 to move upwards, so that the two movable plates 28 can be unfolded towards the left side and the right side, the two movable plates 28 can move, the two gears 42 can synchronously rotate, and finally the two gears 42 can drive the two protection plates 41 to approach each other until the two protection plates 41 are closed;
step two: at the moment, the cambered surface position of the extrusion block 26 is not in contact with the inclined plane block structure of the movable plate 28 any more, but the vertical surface is in contact with the inclined plane block, so that the horizontal extrusion force action on the top plate 24 is not generated any more, at the moment, the extrusion block 26 can continuously move upwards, and the movable plate 28 keeps the position unchanged until the extrusion block 26 extrudes and breaks the phosphogypsum plastering mortar workpiece 6;
step three: at this time, if the chips jump out, the chips are directly contacted with the bottom of the protection plate 41 to effectively intercept the chips so that the chips cannot move outwards, and after the test is finished, the operation is reversed when the chips shrink.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The novel anti-crack phosphogypsum plastering mortar is characterized by comprising the following raw materials in parts by weight: 300 portions of ardealite powder, 100 portions of common cement, 150 portions of calcium hydroxide, 130 portions of perlite, 80-90 portions of hydroxypropyl methyl cellulose ether and 200 portions of water.
2. The novel anti-crack phosphogypsum plastering mortar according to claim 1, is characterized by comprising the following raw materials in parts by weight: 300 parts of phosphogypsum powder, 100 parts of ordinary cement, 100 parts of calcium hydroxide, 80 parts of perlite, 1 part of hydroxypropyl methyl cellulose ether and 150 parts of water.
3. A research and test device for testing the novel anti-crack phosphogypsum plastering mortar of any one of claims 1 to 2 is characterized by comprising:
a supporting seat;
the strength testing mechanism is arranged on the supporting seat and comprises a base, a movable table, a first electric telescopic rod, a top plate, a supporting spring, an extrusion block and a second electric telescopic rod, wherein the movable table is slidably mounted on the inner side of the supporting seat, the first electric telescopic rod is mounted on the supporting seat, and the telescopic end of the first electric telescopic rod is fixedly mounted with the bottom of the supporting seat;
the test bed comprises a base, a test bed and a test bed, wherein rectangular cavities are formed in two sides of the base, and the test bed is mounted on the base through the rectangular cavities;
the top plate is fixedly arranged at the top of the movable table, the movable plate is slidably arranged on the top plate, and the bottom of the movable plate is provided with an inclined plane block structure; the supporting spring is installed on one side of the movable plate, the second electric telescopic rod is installed in the movable table, the telescopic end of the second electric telescopic rod is connected with the extrusion block, and the extrusion block is attached to the inclined plane block structure.
4. The device according to claim 3, wherein the two movable plates are tightly attached, one side of the movable plate extends into the rectangular cavity, and the top plate is used for supporting the bottom to be tested.
5. The research test apparatus of claim 3, wherein the support spring is located between the ramp block structure and the movable stage such that the support spring is in a natural extension state when the movable stage is in the closed state.
6. The research and test device of claim 3, wherein a hardness testing mechanism is mounted on the top of the supporting seat and is located right above the movable table, the hardness testing mechanism comprises a hydraulic rod, a rotating motor and a testing piece, the rotating motor is mounted at a telescopic end of the hydraulic rod, the testing piece is mounted at an output end of the rotating motor, and the testing piece comprises two testing heads and a position adjusting assembly.
7. The research test device of claim 3, wherein the base is provided with connecting slots on both sides of the top thereof, and the front side of the rectangular cavity on the base is open.
8. The research test device of claim 3, further comprising a protection mechanism, wherein the protection mechanism comprises two protection plates, two gears and two sets of limiting pulleys, the two protection plates are slidably mounted on two sides of the top of the base through the limiting pulleys, and the gears are mounted on one side of the base.
9. The research test device of claim 8, wherein the protection plates are provided with saw-toothed grooves on the opposite sides of the top plate, the gears are respectively engaged with the protection plates and the top plate, and one side of one of the protection plates extends into the supporting seat.
10. The research test apparatus of claim 9, wherein when the two movable plates are unfolded outward, the two protection plates are brought close to each other to a closed state.
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| CN202210582488.8A CN115124313B (en) | 2022-05-26 | 2022-05-26 | Crack-resistant phosphogypsum plastering mortar and research and test device thereof |
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| CN202210582488.8A CN115124313B (en) | 2022-05-26 | 2022-05-26 | Crack-resistant phosphogypsum plastering mortar and research and test device thereof |
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| CN115124313B CN115124313B (en) | 2023-07-25 |
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| CN115124313B (en) | 2023-07-25 |
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