CN105067433B - Material splitting resistance test equipment and building coats material testing art - Google Patents
Material splitting resistance test equipment and building coats material testing art Download PDFInfo
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- CN105067433B CN105067433B CN201510475533.XA CN201510475533A CN105067433B CN 105067433 B CN105067433 B CN 105067433B CN 201510475533 A CN201510475533 A CN 201510475533A CN 105067433 B CN105067433 B CN 105067433B
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- plate
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- 239000000463 material Substances 0.000 title claims abstract description 32
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 10
- 239000002344 surface layer Substances 0.000 claims description 9
- 239000004570 mortar (masonry) Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 10
- 238000010998 test method Methods 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The present invention relates to a kind of test equipments and test method of building coats material, a kind of material splitting resistance test equipment, it include the thimble fixed plate perpendicular to bottom plate and fixed setting, horizontally disposed thimble is installed, the thimble is equipped with the top of a cone and the top is opposite with the top of the arc surface in the thimble fixed plate；Building coats material testing art, the opposite power in direction equal in magnitude is applied to two jacking blocks and observes groove surface position, jacking block is stopped drag when visible crack occurs in groove surface position, the distance between two points on second of measurement jacking block, and calculate the difference of second measurement distance and first time measurement distance.This equipment and test method are laterally separated basal plate Impact direction and force way in simulating actual conditions by two jacking blocks, and material face layer force way is consistent with actual conditions, and obtained cracking resistance data are more acurrate.
Description
Technical field
The present invention relates to a kind of test equipment and test method of building coats material, especially a kind of test material is anti-to be opened
Fragility test equipment and test method.
Background technology
Existing waterproof material or putty cracking resistance test equipment and method are the dynamic cracking resistance test in JG/T157
Instrument, generally by device pedestal, screw rod, holder, taper steel top knife composition, the mode pushed up on the edge of a knife is by test fiber cement board
Capping passes through micro- sem observation fracture width.Existing test method has following insufficient：
1, traditional dynamic cracking resistance test equipment and method are substantially that test board fractures, and surface side material is opened by curved
It splits, is not inconsistent with the force way of practical drawing crack, test result is not objective；
2, using microscope viewing surface layer fracture width rather than the cracking width of base, precision is relatively low, and observation difficulty is big,
And crack width in observation may be changed still, the discreteness of test result, and reproducibility is poor；
3, conventional test methodologies can not test the surface material splitting resistance that base's edge joint position uses, and base spells
It is often multiple position of cracking at seam；
4, the system (such as two layers of putty adds priming paint and finishing coat) that conventional method can not form multiple surface materials resists
Fragility is tested, and the anti-cracking performance of entire surface layer system can not be intuitively reacted.
Invention content
To solve the above problems, a kind of material splitting resistance test equipment of present invention offer and test method, this test are set
Standby and test method can be with the stressing conditions of analog sample in practical applications, and obtain accurate experimental data by test.
To achieve the above object, the present invention provides a kind of material splitting resistance test equipment comprising：
Horizontally disposed bottom plate；
It is fixed at the first jacking block of plate upper surface, first jacking block has perpendicular to the plate upper surface
Arc surface；
It is fixed at the thimble fixed plate of plate upper surface, horizontally disposed top is installed in the thimble fixed plate
Needle, the thimble is equipped with the top of a cone and the top is opposite with the top of the arc surface；
After the second jacking block for being fixedly connected with determinand and third jacking block, second jacking block and the combination of third jacking block
Form the opening portion for the top insertion for thimble；The determinand side is fixed with second jacking block and third jacking block to be connected
It connects, the other side is resisted against the arc surface of the first jacking block；And when thimble stretches into opening portion, the second jacking block and third jacking block are to be measured
Object provides direction opposite lateral force；
Range unit for measuring the second jacking block and third jacking block separation distance.
Further, the test equipment includes that thimble can be pushed to the driving mechanism of opening portion linear slide.
Further, the driving mechanism includes the handwheel being arranged on thimble, has in the thimble fixed plate and opens up
The through-hole of internal thread, the thimble are equipped with external screw thread, and the thimble is threadedly coupled across the through-hole with the thimble fixed plate.
Further, the opening portion is made of the inclined-plane for being located at the second jacking block, third jacking block, and two inclined-plane structures
At the wedge shape towards thimble.
Further, the angle of the wedge shape is slightly less than the cone angle of the cone on thimble top.
Further, the range unit includes micrometer, the mounting bracket being fixedly mounted with the second jacking block and third jacking block
The baffle of fixed installation, and when the opposite face of the second jacking block and third jacking block contacts, the mounting bracket and baffle are in contact, institute
Micrometer is stated on the mounting bracket and for measure mounting bracket between baffle at a distance from.
Further, the determinand is made of the first basal plate and the second basal plate Nian Jie with first basal plate,
Second jacking block is Nian Jie with the first basal plate, and third jacking block is Nian Jie with the second basal plate, after the second jacking block and the combination of third jacking block,
The opening portion is opposite with the first basal plate and the second basal plate abutting edge.
Further, first basal plate, the second basal plate and the surface of abutting edge have putty layer and/or decoration
Layer.
A kind of building coats material testing art comprising following steps：
Step 1：Two blocks of basal plates are bonded, two pieces of basal plate bonding sites form groove surface, are scratched in groove surface layer embedding
Mortar is stitched, putty is scratched in groove surface layer after sample is conserved 14 days, two jacking blocks are bonded in Liang Kuai bases and are incited somebody to action respectively
Sample conserves 7 days；
Step 2：Sample is put on pedestal, is chosen respectively on two jacking blocks a bit, for the first time between two points of measurement
Distance；
Step 3：Power equal in magnitude and backwards to other side is applied to two jacking blocks and visible split occurs in groove surface position
Jacking block is stopped drag when seam, the distance between two points on second of measurement jacking block, and calculate second of measurement distance and first
The difference of secondary measurement distance.
Further, whether filleting mortar and putty are dried after observation maintenance in step 1.
Advantageous effect of the present invention：It is equipped in this test equipment, between the first jacking block and thimble fixed plate to be measured for connecting
The second jacking block and third jacking block of object.Second jacking block and third jacking block form opening portion, the opening portion and top when combining
Needle tapered end thereof is opposite to be inserted by thimble in opening portion.When using this test equipment, simulating actual conditions Zhong Liangge bases
The case where when plate under tension, material face layer force way are consistent with actual conditions, and obtained cracking resistance data are more acurrate.
In this test method, sample is put on pedestal, is chosen respectively on two jacking blocks a bit, measures two for the first time
The distance between point；The opposite power in direction equal in magnitude is applied to two jacking blocks and observes groove surface position, when groove surface position
Occur stopping drag jacking block when visible crack, the distance between two points on second of measurement jacking block, and calculates second and survey
Span is consistent from the difference with first time measurement distance, material face layer force way with actual conditions, obtained cracking resistance data
It is more acurrate.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of material splitting resistance test equipment of the present invention.
Reference numeral includes：
1- bottom plates 2- the first jacking block the second jacking blocks of 3-
4- third jacking block 5- thimble fixed plate 6- thimbles
7- handwheel 8- mounting bracket 9- baffles
The opening portions 10- micrometer 11- 12- arc surfaces
Specific implementation mode
The present invention is described in detail below in conjunction with attached drawing.The present invention is widely suitable for simulation material splitting resistance
Test, be particularly suitable for the splitting resistance test of the upper concrete batten abutting edge of building.
As shown in Figure 1, the present embodiment provides a kind of material splitting resistance test equipments comprising：Horizontally disposed bottom plate
1；It is fixed at the first jacking block 2 of 1 upper surface of bottom plate, the first jacking block 2 has the arc surface 12 perpendicular to plate upper surface；Gu
Thimble fixed plate 5 in 1 upper surface of bottom plate is set calmly, horizontally disposed thimble 6 is installed in thimble fixed plate 5, thimble 6 is equipped with
The top and the top of one cone are opposite with the top of arc surface 12；The second jacking block 3 for being fixedly connected with determinand and
On bottom plate 1, the second jacking block 3 and third jacking block 4 combine for third jacking block 4, the second jacking block 3 and the mobilizable setting of third jacking block 4
The opening portion 11 for the top insertion for thimble 6 is formed afterwards；Determinand side is fixed with the second jacking block 3 and third jacking block 4 to be connected
It connects, the other side is resisted against the arc surface 12 of the first jacking block 2；And when thimble 6 stretches into opening portion 11, the second jacking block 3 and third top
Block 4 provides direction opposite lateral force determinand；Ranging for measuring 4 separation distance of the second jacking block 3 and third jacking block
Device.
Specifically, the present embodiment bottom plate 1 and the first jacking block 2, bottom plate 1 and thimble fixed plate 5 are fixedly connected with, preferably adopt
It is made of integrally formed mode, bottom plate 1, the first jacking block 2 and thimble fixed plate 5 are that hard metal material is made, and thimble is solid
Fixed board 5 is equipped with for the through-hole across thimble 6, and it is the plate of one piece of arc-shaped protrusion that thimble 6, which passes through through-hole, the first jacking block 2, is dashed forward
Position and the thimble 6 risen is opposite, minimizes tester by frictional force caused by the first jacking block 2, true with simulation test object
Service condition.Second jacking block 3 and third jacking block 4 are that hard metal material is made, and the second jacking block 3 and third jacking block 4 are all provided with
There is inclined-plane, when the second jacking block 3 and third jacking block 4 are combined, together with the second jacking block 3 and 4 incline configuration of third jacking block simultaneously
Form opening portion 11.The one end opposite with opening portion 11 of thimble 6 is taper.When using this test equipment, by the survey of tester
Examination face is respectively fixedly connected with the second jacking block 3, third jacking block 4, and make after being fixedly connected the second jacking block 3 and third jacking block 4 it
Between form opening portion 11, after thimble 6 is headed into opening portion 11, thimble 6 and the first jacking block 2 form chucking power to tester, herein
The direction of this chucking power is become into X-direction, simultaneously 6 top insertion opening portion 11 of thimble is by the second jacking block 3 and third top
Block 4 is pushed open to two sides, and pushes power open to the test surfaces of tester formation Y direction, the clamping as preferred X-direction
Power should push that power is vertical in the horizontal direction open with Y direction, can simulate the true stressing conditions of tester in this way.When to be measured
When slight crack occurs in object surface, the reading of micrometer 10 is the development length of determinand at this time.
Further, this equipment includes that thimble 6 can be pushed to the driving mechanism of 11 linear slide of opening portion.Pushing mechanism packet
The handwheel 7 being arranged on thimble 6 is included, thimble fixed plate 5 is equipped with the through-hole for opening up internal thread, and thimble 6 is equipped with external screw thread, thimble
6 are threadedly coupled across through-hole with thimble fixed plate 5.
Opening portion 11 is made of the inclined-plane for being located at the second jacking block 3, third jacking block 4, and two inclined-planes are constituted towards top
The wedge shape of needle 6.The angle of wedge shape is slightly less than the cone angle of the cone on 6 top of thimble.So that opening portion 11 can be linear opening.
Further, one end far from the first jacking block 2 is equipped with handwheel 7 on thimble 6, and opposite thimble 6 is equipped with external screw thread, leads to
Hole is equipped with internal thread.The rotatable handwheel 7 of operating personnel makes thimble 6 threadingly relatively rotate and be promoted to opening portion 11.This implementation
In example, other forms can also be used and push thimble 6, pushes thimble 6 for example, by using linear electric machine, at this time 6 circumference of through-hole and thimble
Face should be smooth.It can be achieved what thimble 6 linearly pushed.
Further, range unit includes micrometer 10, the mounting bracket 8 being fixedly mounted with the second jacking block 3 and third jacking block
4 baffles 9 being fixedly mounted, and when the opposite face of the second jacking block 3 and third jacking block 4 contacts, mounting bracket 8 and baffle 9 are in contact,
Micrometer 10 be mounted on mounting bracket 8 on and for measure mounting bracket 8 between baffle 9 at a distance from.
Specifically, the second basal plate that determinand is bonded by the first basal plate and the first basal plate forms, the second jacking block 3 with
First basal plate is bonded, and third jacking block 4 is Nian Jie with the second basal plate, after the second jacking block 3 and the combination of third jacking block 4, opening portion
11 is opposite with the first basal plate and the second basal plate abutting edge.When test, behind 6 insertion opening portion 11 of thimble, the second jacking block 3 and
Three jacking blocks 4 provide the first basal plate and the second basal plate to pulling force to the opposite both sides in direction respectively, to test the first basal plate
With the second basal plate abutting edge anti-cracking ability.
Further, the surface of the first basal plate, the second basal plate and abutting edge has putty layer and/or decorative layer.With
The connection method of first basal plate, the second basal plate in simulation reality.
Further, the present embodiment also proposes a kind of test method using building coats material comprising following steps：
Step 1：Two blocks of basal plates are bonded, two pieces of basal plate bonding sites form groove surface, are scratched in groove surface layer embedding
Mortar is stitched, putty is scratched in groove surface layer after sample is conserved 14 days, two jacking blocks are bonded in Liang Kuai bases and are incited somebody to action respectively
Sample conserves 7 days；
Step 2：Sample is put on pedestal, is chosen respectively on two jacking blocks a bit, for the first time between two points of measurement
Distance；
Step 3：The opposite power in direction equal in magnitude is applied to two jacking blocks and observes groove surface position, when groove surface position
Occur stopping drag jacking block when visible crack, the distance between two points on second of measurement jacking block, and calculates second and survey
Span is from the difference with first time measurement distance.
Further, whether filleting mortar and putty are dried after observation maintenance in step 1.
Specifically, the equipment in conjunction with being used in the present embodiment, two blocks of basal plates is bonded, two pieces of basal plate bonding site shapes
At groove surface, whether observation filleting mortar is completely dried after groove surface layer scratches filleting mortar, and sample is conserved 14 days, recessed
Groove face layer scratches putty, and the second jacking block 3 and third jacking block 4 are bonded in two pieces of basal plate sides respectively, makes the second jacking block 3 and the
Three tops are opposite to be close to and is formed opening portion 11, and whether observation putty is dried after sample is conserved 7 days；
Step 2：Sample is put on pedestal, so that opening portion 11 is directed at the upper conical one end of thimble 6, and groove surface is made to be aligned
The top of arc surface 12, amesdial is returned to zero, and completes the preparation of experiment at this time.
Step 3：It pushes 6 slow insertion opening portion 11 of thimble and observes groove surface position, two blocks of basal plates receive at this time
Direction is opposite and pulling force outward, stops pushing thimble 6 when visible crack occurs in groove surface position, and record at this time thousand
Divide meter reading.
Preferably, basal plate should be identical as the second jacking block 3 and the height of third jacking block 4.
The above content is only presently preferred embodiments of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, in specific embodiments and applications can be with many changes may be made, as long as these variations are without departing from the structure of the present invention
Think, all belongs to the scope of protection of the present invention.
Claims (8)
1. a kind of material splitting resistance test equipment, it is characterised in that：It includes,
Horizontally disposed bottom plate (1)；
It is fixed at first jacking block (2) of bottom plate (1) upper surface, first jacking block (2) has perpendicular to the bottom plate (1)
The arc surface (12) of upper surface；
It is fixed at the thimble fixed plate (5) of bottom plate (1) upper surface, is equipped on the thimble fixed plate (5) horizontally disposed
Thimble (6), the thimble (6) be equipped with one cone top and the top it is opposite with the top of the arc surface (12)；
The second jacking block (3) for being fixedly connected with determinand and third jacking block (4), second jacking block (3) and third jacking block
(4) opening portion (11) for the top insertion for thimble (6) is formed after combining；The determinand side and second jacking block
(3) it is fixedly connected with third jacking block (4), the other side is resisted against the arc surfaces (12) of the first jacking block (2)；And when thimble (6) stretches into
When opening portion (11), the second jacking block (3) and third jacking block (4) provide direction opposite lateral force determinand；
Range unit for measuring the second jacking block (3) and third jacking block (4) separation distance；
The determinand is made of the first basal plate and the second basal plate Nian Jie with first basal plate, the second jacking block (3) with
First basal plate is bonded, and third jacking block (4) is Nian Jie with the second basal plate, after the second jacking block (3) and third jacking block (4) combination,
Opening portion (11) is opposite with the first basal plate and the second basal plate abutting edge；
The test equipment includes that thimble (6) can be pushed to the driving mechanism of opening portion (11) linear slide.
2. material splitting resistance test equipment according to claim 1, it is characterised in that：The driving mechanism includes setting
There is on the thimble fixed plate (5) handwheel (7) on thimble (6) through-hole for opening up internal thread, the thimble (6) to be equipped with
External screw thread, the thimble (6) are threadedly coupled across the through-hole with the thimble fixed plate (5).
3. material splitting resistance test equipment according to claim 1, it is characterised in that：The opening portion (11) is by respectively
It is constituted positioned at the inclined-plane of the second jacking block (3), third jacking block (4), and two inclined-planes constitute the wedge shape towards thimble (6).
4. material splitting resistance test equipment according to claim 3, it is characterised in that：The angle of the wedge shape is slightly less than
The cone angle of the cone on thimble (6) top.
5. material splitting resistance test equipment according to claim 1, it is characterised in that：The range unit includes thousand points
Ruler (10), the mounting bracket (8) being fixedly mounted with the second jacking block (3), the baffle (9) being fixedly mounted with third jacking block (4), and the
When the opposite face of two jacking blocks (3) and third jacking block (4) contacts, the mounting bracket (8) and baffle (9) are in contact, the micrometer
(10) be mounted on mounting bracket (8) on and for measure mounting bracket (8) between baffle (9) at a distance from.
6. material splitting resistance test equipment according to claim 1, it is characterised in that：First basal plate, second
The surface of basal plate and abutting edge has putty layer and/or decorative layer.
7. a kind of building coats material testing art of material splitting resistance test equipment as described in claim 1, feature
It is：It includes the following steps：
Step 1：Two blocks of basal plates are bonded, two pieces of basal plate bonding sites form groove surface, and filleting sand is scratched in groove surface layer
Slurry scratches putty in groove surface layer after conserving sample 14 days, two jacking blocks is bonded in respectively in Liang Kuai bases and by sample
Maintenance 7 days；
Step 2：Sample is put on pedestal, is chosen respectively on two jacking blocks a bit, for the first time measure two points between away from
From；
Step 3：Power equal in magnitude and backwards to other side is applied to two jacking blocks and when visible crack occurs in groove surface position
Jacking block is stopped drag, the distance between two points on second of measurement jacking block, and calculate second of measurement distance and survey for the first time
Span from difference.
8. building coats material testing art according to claim 7, it is characterised in that：In step 1 after observation maintenance
Whether filleting mortar and putty are dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475533.XA CN105067433B (en) | 2015-08-05 | Material splitting resistance test equipment and building coats material testing art |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475533.XA CN105067433B (en) | 2015-08-05 | Material splitting resistance test equipment and building coats material testing art |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105067433A CN105067433A (en) | 2015-11-18 |
| CN105067433B true CN105067433B (en) | 2018-08-31 |
Family
ID=
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT390328B (en) * | 1986-01-31 | 1990-04-25 | Elmar Dr Tschegg | Testing device for determining mechanical fracture characteristics and test body suitable for this purpose |
| AT396997B (en) * | 1990-01-11 | 1994-01-25 | Tschegg Elmar Dr | Load introduction device |
| AT402767B (en) * | 1994-08-24 | 1997-08-25 | Elmar Dr Tschegg | Load introduction device for high-temperature tests |
| AT409038B (en) * | 1999-11-26 | 2002-05-27 | Elmar Dr Tschegg | Wedge gap fracture testing device for combined stressing |
| CN201983781U (en) * | 2010-12-20 | 2011-09-21 | 中钢集团洛阳耐火材料研究院有限公司 | Measurement device for sample deformation amount in refractory material fracture energy test |
| CN203616202U (en) * | 2013-11-05 | 2014-05-28 | 西南交通大学 | Wedge testing device for fracture property of metal materials |
| CN204988880U (en) * | 2015-08-05 | 2016-01-20 | 东莞市万科建筑技术研究有限公司 | Material crack resistance test equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT390328B (en) * | 1986-01-31 | 1990-04-25 | Elmar Dr Tschegg | Testing device for determining mechanical fracture characteristics and test body suitable for this purpose |
| AT396997B (en) * | 1990-01-11 | 1994-01-25 | Tschegg Elmar Dr | Load introduction device |
| AT402767B (en) * | 1994-08-24 | 1997-08-25 | Elmar Dr Tschegg | Load introduction device for high-temperature tests |
| AT409038B (en) * | 1999-11-26 | 2002-05-27 | Elmar Dr Tschegg | Wedge gap fracture testing device for combined stressing |
| CN201983781U (en) * | 2010-12-20 | 2011-09-21 | 中钢集团洛阳耐火材料研究院有限公司 | Measurement device for sample deformation amount in refractory material fracture energy test |
| CN203616202U (en) * | 2013-11-05 | 2014-05-28 | 西南交通大学 | Wedge testing device for fracture property of metal materials |
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| Title |
|---|
| 外墙保温体系面层裂缝产生原因及其控制技术（二）;黄振利，刘刚;《墙材革新与建筑节能》;20050210(第2期);全文 * |
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