CN105628902B - A kind of mortar carrying capacity determination test instrument and test method - Google Patents
A kind of mortar carrying capacity determination test instrument and test method Download PDFInfo
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- CN105628902B CN105628902B CN201510976974.8A CN201510976974A CN105628902B CN 105628902 B CN105628902 B CN 105628902B CN 201510976974 A CN201510976974 A CN 201510976974A CN 105628902 B CN105628902 B CN 105628902B
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- mortar
- test specimen
- specimen tube
- pushing ram
- carrying capacity
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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
Abstract
The invention discloses a kind of mortar carrying capacity determination test instrument, it includes：Test specimen tube, propeller and digital display panel；The propeller is made up of pushing ram, sliding block, sensor and manual lead screw, and the left end of pushing ram is provided with baffle plate, and right end is provided with sensor, and pushing ram is fixedly connected by connector with sliding block, and sliding block is operated on manual lead screw；The test specimen tube is being openend close to sensor one end, away from, provided with measurement graticule, the other end is provided with 30mm circular holes provided with steel sealing, the center of steel sealing at the 50mm of openend；The sensor connects the digital display panel；The test specimen tube horizontal positioned, the opening of the test specimen tube rectifies the baffle plate to the pushing ram.The invention also discloses a kind of mortar carrying capacity determination test method.The present invention is simple in construction, easy to use, can effectively carry out mortar carrying capacity measure, carries out providing analyze data to the construction superiority-inferiority of mortar, domestic blank has been filled up, with fabulous application value.
Description
Technical field
Advanced Equipment field is determined the present invention relates to building materials, and in particular to a kind of mortar carrying capacity determination test instrument and experiment
Method.
Background technology
The continuous propulsion applied along with premixing mortar, premixing mortar mechanized construction technology is increasingly becoming of concern
Focus, the important directions developed as premixing mortar.In the long run, the operating type of building mortar must to mechanization, from
Dynamicization mode changes, and develop ordinary mortar mechanized construction (abbreviation Machine-blasting mortar) technology by be future development important directions
One of.Mechanized construction has the advantages that low efficiency high, labor intensity, good engineering quality, environmental protection, spillage of material are few, shows
Strong market competitiveness.
The mechanized construction of building mortar is a systematic engineering of business, is related to people, machine, three important steps of material, all the time
Coordination and the delayed of correlative study due to three links are not promoted.Wherein solve domestic ordinary mortar and mechanization is applied
Compatible problem between construction equipment, is a crucial step for mechanized construction technology advances.Current domestic construction mortar production
There is larger difference in product, not only cause equipment attrition serious during construction, and easily cause stifled in terms of raw material, performance and price
The problems such as pipe and material are kicked down, makes the advantage of mechanized construction have no way of embodying.One of its reason is that automatic arc spraying is built
The research of the performance indications of mortar is in blank stage.
The imperfection of the performance indications of Machine-blasting mortar directly influences the popularization of mechanized construction, is applied to quantify Machine-blasting mortar
The good and bad difference of work, preferably characterizes mortar and complexity is overflowed in spray pipe, that is, spray difficulty, simulate Machine-blasting mortar
Spraying process, therefore develop a kind of mortar carrying capacity determination test instrument and test method.Such technology relevant at present is rarely reported.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention devises a kind of mortar carrying capacity determination test instrument and test method,
It is difficult to quantify the good and bad difference of Machine-blasting mortar application property for a long time to solve, and preferably sign mortar overflows hardly possible in spray pipe
The problem of easy degree.
A kind of technical scheme of the present invention is as follows：
A kind of mortar carrying capacity determination test instrument, it includes：Test specimen tube, propeller and digital display panel；The propeller by
Pushing ram, sliding block, sensor and manual lead screw composition, the left end of pushing ram are provided with baffle plate, and right end is provided with sensor, connection
Pushing ram is fixedly connected by part with sliding block, and sliding block is operated on manual lead screw, and the turn of manual lead screw on movable slider with connecting
Pushing ram is moved horizontally；The test specimen tube is being openend close to sensor one end, and graticule is measured away from being provided with the 50mm of openend,
The other end is sealed provided with steel, and the center of steel sealing is provided with 30mm circular holes；The sensor connects the digital display panel；It is described
Test specimen tube horizontal positioned, the opening of the test specimen tube rectifies the baffle plate to the pushing ram；
The baffle plate is circle, and the diameter of the baffle plate is less than or equal to the internal diameter of the test specimen tube；
The range of the sensor is 0~500N；
The sample tube length 250mm, internal diameter 50mm；
The connector is L-type, and the sensor is on the connector, and the connector is connected with sliding block again.
During test experiments, rotary manual screw mandrel can to the right be moved horizontally with the pushing ram on movable slider, pushing ram left end
Baffle plate flatly seals the steel that mortar pushes the test specimen tube to the 30mm circular holes of one end.
Another technical scheme of the present invention is as follows：
A kind of mortar carrying capacity determination test method, comprises the following steps：
A. load 200mm mechanically spraying dedicated mortar in test specimen tube, that is, be filled at measurement graticule, plugged and pounded using slotting tool
For several times, until closely knit, uniform tight position, is then placed in the shim liner for a diameter of 48mm being made up of nonabsorbent material, prevent
Only mortar is unrestrained in test specimen tube tilting procedure；
B. test specimen tube is fixed in fixing clasp, the baffle plate of adjustment pushing ram is contacted with pad；In the test specimen tube other end
30mm circular holes lower section be provided with receiver.
C. digital display panel returns to zero, turn manual lead screw, drives pushing ram Level Promoting mechanically spraying dedicated mortar to reach
It is dynamic；And observe sample state in the change of digital display panel reading and cylinder；If the mortar releases difficulty, should be immediately when data are close to 450N
Stop experiment；
D. when the baffle plate of pushing ram is advanced to apart from port 50mm or so, stop promoting, during digital display Display panel
Maximum resistance, record data.
Test principle：The experiment of mortar carrying capacity is to imitate a kind of effective experimental simulation side that mortar machine sprays practice of construction process
Method.Transporting resistance is bigger, then the workability of the building mortar mechanically spraying is not good, big to mechanical wear, and spraying effect is poor.
Beneficial effect：The present invention is simple in construction, easy to use, can effectively carry out mortar carrying capacity measure, carries out to sand
The construction superiority-inferiority of slurry provides analyze data, domestic blank has been filled up, with fabulous application value.
Brief description of the drawings
Fig. 1 is the structural representation of mortar carrying capacity determination test instrument of the present invention.
Embodiment
Describe structure, method and the operation principle of the present invention in detail below in conjunction with accompanying drawing.
Embodiment 1
As shown in figure 1, a kind of mortar carrying capacity determination test instrument, it includes：Test specimen tube 1, propeller 2 and digital display panel 3；
The propeller 2 is made up of pushing ram 4, sliding block 7, sensor 5 and manual lead screw 8, and the left end of pushing ram 4 is provided with 48mm baffle plates
9, right end is provided with sensor 5, and pushing ram 4 is fixedly connected by connector 6 with sliding block 7, and sliding block 7 is operated on manual lead screw 8, hand
The turn of dynamic screw mandrel 8 is moved horizontally with the pushing ram 4 connected on movable slider 7；The test specimen tube 1 is being close to the one end of sensor 5
Openend, away from, provided with measurement graticule 11, the other end is provided with provided with steel sealing 10, the center of steel sealing 10 at the 50mm of openend
30mm circular holes；The sensor 5 connects the digital display panel 3；The horizontal positioned of test specimen tube 2, the openend of the test specimen tube 2
Just to the baffle plate 9 of the pushing ram 4；The baffle plate 9 is circle, and the diameter of the baffle plate 9 is less than or equal to the test specimen tube 1
Internal diameter；The range of the sensor 5 is 0~500N；The test specimen tube 1 long 250mm, internal diameter 50mm；During test experiments, hand is rotated
Dynamic screw mandrel can to the right be moved horizontally with the pushing ram on movable slider, and the baffle plate of pushing ram left end flatly pushes mortar to the examination
The steel of sample cylinder seals the 30mm circular holes of one end.The connector 6 is L-type, and the sensor 5 is on the connector 6, institute
Connector 6 is stated to be connected with sliding block 7 again.The present invention is fixed on experimental bench, and test specimen tube 1 is fixed in fixing clasp, fixing clasp
Provided with experiment porch；Propeller 2 is fixed on experimental bench by support；Digital display panel 3, which is placed on experimental bench, to be easy to see
The position examined.
Embodiment 2
A kind of mortar carrying capacity determination test method, comprises the following steps：
A. load 200mm mechanically spraying dedicated mortar in test specimen tube 1, that is, be filled at measurement graticule 11, utilize slotting tool
Plug and pound for several times, until closely knit, uniform tight position, is then placed in the pad for a diameter of 48mm being made up of nonabsorbent material,
Prevent mortar unrestrained in the tilting procedure of test specimen tube 1；
B. test specimen tube 1 is horizontally fixed in fixing clasp, the baffle plate 9 of adjustment pushing ram 4 is contacted with pad；In test specimen tube
The lower section of the 30mm circular holes of 1 other end is provided with receiver；
C. digital display panel 3 returns to zero, artificial turn manual lead screw 8, drives the Level Promoting mechanically spraying dedicated mortar of pushing ram 4
Move forward；And observe sample state in the change of the reading of digital display panel 3 and cylinder；If the mortar is released difficult, data are close to 450N
When should stop immediately experiment；
D. when the baffle plate 9 of pushing ram 4, which is advanced to, seals the port 48-52mm of 10 one end apart from steel, stop promoting,
Maximum resistance during digital display Display panel, record data.
Test principle：The experiment of mortar carrying capacity is to imitate a kind of effective experimental simulation side that mortar machine sprays practice of construction process
Method.Transporting resistance is bigger, then the workability of the building mortar mechanically spraying is not good, big to mechanical wear, and spraying effect is poor.
Analysis of experimental data
Table 1 is that 6 formulas carry out carrying capacity experiment and the conveying force value measured.Carrying capacity feel of exerting oneself is as shown in table 2.Its
The carrying capacity of middle 1# and 3# mortars exceeds equipment range.
It was found from interpretation of result：
(1) water retentivity of mortar has certain corresponding relation with carrying capacity, and poor water retention property, carrying capacity is big, and sand easily occurs
Starch segregation phenomenon；
(2) the spilling thrust of tetra- formulas of 2#, 4#, 5#, 6# is very low, it is known that new type mortar densification powder is conducive to improving mortar
The propelling resistance of operability, effectively reduction mortar, is allowed to carrying capacity and is maintained at below 100N, improve conveying capacity；Water conservation increases
Thick material category influences very big to Machine-blasting mortar spraying effect, and the water-keeping thickening material of high-quality has higher water retention, mortar
Workability is good；
(3) reduction aggregate particle size or modulus of fineness, be conducive to improving mortar can conveying capacity.
(4) maximum during carrying capacity test result is, is observed according to process of the test, conveys force value overall distribution
For the 60~80% of maximum.
Table 1
Table 2
| Numbering | Firmly feel |
| 1 | It is difficult to；Frictional resistance is big；It is almost 0 to be pushed into depth |
| 2 | It is easier to； |
| 3 | It is more difficult； |
| 4 | It is easier to； |
| 5 | It is easier to； |
| 6 | Easily； |
Testing result of the present invention is authentic and valid as can be seen from Table 1 and Table 2, available for mortar carrying capacity determination experiment.
Claims (6)
1. a kind of mortar carrying capacity determination test instrument, it includes：Test specimen tube, propeller and digital display panel；It is characterized in that：It is described
Propeller is made up of pushing ram, sliding block, sensor and manual lead screw, and the left end of pushing ram is provided with baffle plate, and right end is provided with biography
Pushing ram is fixedly connected by sensor, connector with sliding block, and sliding block is operated on manual lead screw, the turn band movable slider of manual lead screw
The pushing ram of upper connection is moved horizontally；The test specimen tube is being openend close to sensor one end, away from being provided with the 50mm of openend
Graticule is measured, the other end is sealed provided with steel, the center of steel sealing is provided with 30mm circular holes；The sensor connects the digital display
Panel；The test specimen tube is horizontally fixed on platform, and the opening of the test specimen tube rectifies the baffle plate to the pushing ram.
2. mortar carrying capacity determination test instrument as claimed in claim 1, it is characterised in that：The baffle plate is circle, the gear
The diameter of plate is less than or equal to the internal diameter of the test specimen tube.
3. mortar carrying capacity determination test instrument as claimed in claim 1, it is characterised in that：The range of the sensor be 0 ~
500N。
4. mortar carrying capacity determination test instrument as claimed in claim 1, it is characterised in that：The sample tube length 250mm, internal diameter
50mm。
5. mortar carrying capacity determination test instrument as claimed in claim 1, it is characterised in that：The connector is L-type, the biography
Sensor is on the connector, and the connector is connected with sliding block again.
6. a kind of mortar carrying capacity determination test method, it is characterised in that：Comprise the following steps：
A. load 200mm mechanically spraying dedicated mortar in test specimen tube, that is, be filled at measurement graticule, number is plugged and pounded using slotting tool
It is secondary, until closely knit, uniform tight position, is then placed in the shim liner for a diameter of 48mm being made up of nonabsorbent material, prevents
Mortar is unrestrained in test specimen tube tilting procedure；
B. test specimen tube is fixed in fixing clasp, the baffle plate of adjustment pushing ram is contacted with pad；In the test specimen tube other end
The lower section of 30mm circular holes is provided with receiver；
C. digital display panel returns to zero, turn manual lead screw, drives pushing ram Level Promoting mechanically spraying dedicated mortar to move forward；And
Observe sample state in the change of digital display panel reading and cylinder；If the mortar releases difficulty, data should stop immediately close to during 450N
Experiment；
D. when the baffle plate of pushing ram is advanced to apart from port 50mm or so, stop promoting, during digital display Display panel most
Big resistance, record data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510976974.8A CN105628902B (en) | 2015-12-22 | 2015-12-22 | A kind of mortar carrying capacity determination test instrument and test method |
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| CN201510976974.8A CN105628902B (en) | 2015-12-22 | 2015-12-22 | A kind of mortar carrying capacity determination test instrument and test method |
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| CN105628902A CN105628902A (en) | 2016-06-01 |
| CN105628902B true CN105628902B (en) | 2017-08-25 |
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| CN101387651B (en) * | 2008-10-08 | 2012-05-16 | 中国科学院南海海洋研究所 | Automatic sample handling system and control method thereof |
| CN202471570U (en) * | 2012-03-14 | 2012-10-03 | 中建商品混凝土有限公司 | Concrete pumping slippage resistance test device |
| CN204314180U (en) * | 2014-11-03 | 2015-05-06 | 绍兴新兴盛仪器有限公司 | A kind of towed concrete pumping performance test instrument |
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