CN109001011A - A kind of fiber cement composites are uniaxially stretched specimen molding device and method - Google Patents
A kind of fiber cement composites are uniaxially stretched specimen molding device and method Download PDFInfo
- Publication number
- CN109001011A CN109001011A CN201810500135.2A CN201810500135A CN109001011A CN 109001011 A CN109001011 A CN 109001011A CN 201810500135 A CN201810500135 A CN 201810500135A CN 109001011 A CN109001011 A CN 109001011A
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- China
- Prior art keywords
- side plate
- fiber cement
- uniaxially stretched
- cement composites
- specimen molding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
Abstract
The invention discloses a kind of fiber cement composites to be uniaxially stretched specimen molding device and method.The inventive system comprises the side plates that two have concave-convex Mosaic face, and intermediate after the splicing of side plate described in two pieces to have type chamber, side plate described in two pieces is linked together by the screw arbor assembly at both ends.The device light weight, structure are simple, make to test easily operated, and test result is accurate, stablizes.
Description
Technical field:
The present invention relates to a kind of fiber cement composites to be uniaxially stretched specimen molding device and method, belongs to cement-based material
Performance testing device belongs to the field of building materials.
Background technique:
Cement-based material is current using most extensive, the maximum construction material of dosage, is widely used in all trades and professions.But cement
Sill has tension, flexural strength low, and limiting strain is small, and shock resistance is poor, the defect of the high-lightings such as easy to crack, so mesh
It is preceding to mostly use fiber reinforced cement-based material greatly to strengthen and toughening cement-based material.Fiber cement composites are because of it at present
With tension, High anti bending strength, shock resistance be good, the excellent characteristics such as not easy to crack and be widely used in building, building, environment
The fields such as art and rescue and relief work, therefore the intensity that is uniaxially stretched of fiber cement composites is important in architectural engineering comment
One of valence index.
Shaping fiber cement-base composite material is uniaxially stretched the cast iron quality dress that the device of test specimen is mainly monoblock type at present
It sets.There is the following in it: one, being not easy demoulding in 1d demoulding using the device of monoblock type, and be easy to try test
Part damage；Two, perishable using the device of cast iron quality, it is heavy in use, it is not easy to operate, easily injured by a crashing object.To obtain
Fiber cement composites are uniaxially stretched specimen molding device, the device for needing to research and develop lightweight, being easy to demoulding.Therefore, lightweight,
The fiber cement composites for being easy to demoulding are uniaxially stretched specimen molding device and method with particularly significant application value, answer
It is very wide with prospect.
Summary of the invention
The object of the present invention is to provide a kind of fiber cement composites to be uniaxially stretched specimen molding device and method, should
Apparatus structure is simple, makes to test easily operated, and test result is accurate, stablizes.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of fiber cement composites are uniaxially stretched specimen molding device, have the side plate of concave-convex Mosaic face including two,
Intermediate after the splicing of side plate described in two pieces to have type chamber, side plate described in two pieces is linked together by the screw arbor assembly at both ends.
The fiber cement composites are uniaxially stretched specimen molding device, and the type chamber is bone type, described
Bone type type chamber overall length 330mm, both ends " bone type " width are 60mm, and intermediate rectangular part length × width is 100mm × 30mm.
The fiber cement composites are uniaxially stretched specimen molding device, the screw arbor assembly include from
Front end backward successively with ailhead, smooth section, thread segment screw rod and nut, the screw rod pass through two pieces described in side plate,
In the ailhead insertion side plate of one end, the thread segment of the other end is connect with nut.
The fiber cement composites are uniaxially stretched specimen molding device, and the area of plane of the ailhead is device
The 1/3 ~ 1/2 of area of section, insert depth are 10 ~ 20mm, and the area of section of smooth shaft and threaded rod is device area of section 1/3
~ 1/4, the length of smooth shaft is 70 ~ 90mm, and the length of threaded rod is 10 ~ 20mm, and the size and screw rod of nut are arranged in pairs or groups.
The fiber cement composites are uniaxially stretched specimen molding device, and the material of the side plate is that rigidity is organic
Glass or plastics.
The fiber cement composites are uniaxially stretched specimen molding device, length 380 ~ 430mm of the device, wide
Degree is 80 ~ 100mm, 30 ~ 50mm of height.
The method that fiber cement composites are uniaxially stretched specimen molding is carried out with above-mentioned apparatus, this method includes following
Step:
(1) two blocks of side plates are subjected to splicing according to the splicing seams of male and fomale(M&F) and surround a type chamber；
(2) both side plate is passed through with shank of bolt, ailhead is embedded in side plate, and smooth shaft passes through both side plate, and threaded rod extends outside side plate, so
Fixation, brush mould oil are tightened with nut afterwards；
(3) the fiber cement composites slurry being stirred is poured into device, is struck off, conserve 1d demoulding, standard curing is extremely
Then age tests uniaxial tensile strength.
The utility model has the advantages that
Compared to the prior art the present invention, has following distinguishing feature:
1. the present invention uses the organic glass or plastics of high-strength light with conventional apparatus compared with, with wear-resisting, lightweight, not perishable
The advantages that erosion, strong operability.
2. the device of the invention realize device can quickly and easily using two pieces of side plate splicings and shank of bolt technique for fixing
Disassembly process, makes that test specimen is easier to demoulding and test specimen spoilage is low.
3. the device of the invention can make spliced device more compared with parallel splicing using concave-convex splicing
It is firm, firm to add, and increases experimental accuracy and precision.
Detailed description of the invention
Fig. 1: top view of the invention.
Fig. 2: main view of the invention.
Fig. 3: left view of the invention.
In figure, 1 side plate, 2 type chambers, 3 ailheads, 4 smooth sections, 5 thread segments, 6 nuts.
Specific embodiment
With reference to embodiment, the present invention is furture elucidated, it should be understood that following specific embodiments are only used for
It is bright the present invention rather than limit the scope of the invention.
Embodiment 1:
As shown in Figure 1-3, the fiber cement composites of the present embodiment are uniaxially stretched specimen molding device, including two have
The side plate 1 of concave-convex Mosaic face, intermediate after the splicing of side plate described in two pieces to have type chamber 2, side plate described in two pieces passes through both ends
Screw arbor assembly links together.
Fiber cement composites described in the present embodiment are uniaxially stretched specimen molding device, and the type chamber is bone
Head dummy, the bone type type chamber overall length 330mm, both ends " bone type " width are 60mm, and intermediate rectangular part length × width is 100mm
×30mm。
Fiber cement composites described in the present embodiment are uniaxially stretched specimen molding device, each screw rod
Component includes successively having ailhead 3, smooth section 4, the screw rod of thread segment 5 and nut 6 backward from front end, and the screw rod passes through two
The ailhead of side plate described in block, one end is embedded in side plate, and the thread segment of the other end is connect with nut.
Fiber cement composites described in the present embodiment are uniaxially stretched specimen molding device, the plane of the ailhead
Area is the 1/3 ~ 1/2 of device area of section, and insert depth is 10 ~ 20mm, and the area of section of smooth shaft and threaded rod is device
Area of section 1/3 ~ 1/4, the length of smooth shaft are 70 ~ 90mm, and the length of threaded rod is 10 ~ 20mm, the size and screw rod of nut
Collocation.
Fiber cement composites described in the present embodiment are uniaxially stretched specimen molding device, the material of the side plate
For rigid organic glass or plastics.
Fiber cement composites described in the present embodiment are uniaxially stretched specimen molding device, the length of the device
380 ~ 430mm, width are 80 ~ 100mm, 30 ~ 50mm of height.
The method that fiber cement composites are uniaxially stretched specimen molding is carried out with above-mentioned apparatus, this method includes following
Step:
(1) two blocks of side plates are subjected to splicing according to the splicing seams of male and fomale(M&F) and surround a type chamber；
(2) both side plate is passed through with shank of bolt, ailhead is embedded in side plate, and smooth shaft passes through both side plate, and threaded rod extends outside side plate, so
Fixation, brush mould oil are tightened with nut afterwards；
(3) the fiber cement composites slurry being stirred is poured into device, is struck off, conserve 1d demoulding, standard curing is extremely
Then age tests uniaxial tensile strength.
Case study on implementation:
Using P II42.5 portland cement, tap water.Match ratio (g): cement -450, flyash -450, sand -270, water -
270, water-reducing agent -2.4；PVA fiber volume volume -2.0%.(1) prepare fiber cement composites slurry: first by cement,
Flyash is added in blender and mixes well, and water and water-reducing agent is added, adds sand, stirs into mortar, then that fiber is slow
It is added in mortar, is sufficiently stirred to obtain fiber cement composites slurry.(2) preparation is uniaxially stretched test specimen: first by two pieces
Side plate carries out splicing according to seam and surrounds a type chamber；Then both side plate is passed through with shank of bolt, ailhead is embedded in side plate, smooth shaft
Across both side plate, threaded rod extends outside side plate, then tightens fixation, brush mould oil with nut；The fiber water being finally stirred
Cement-based composite material slurry pours into device, strikes off, and conserves 1d demoulding, standard curing to 28d.Utilize 810 test macro of MTS
It is tested for the property, loading method is to load by displacement, and loading speed 0.1mm/min, obtaining test specimen uniaxial tensile strength is
4.21MPa。
It should be pointed out that above-mentioned embodiment is only intended to clearly illustrate example, and not to embodiment
It limits, there is no necessity and possibility to exhaust all the enbodiments.Each component part being not known in the present embodiment
It is realized with the prior art.For those skilled in the art, in the premise for not departing from the principle of the invention
Under, several improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (7)
1. a kind of fiber cement composites are uniaxially stretched specimen molding device, which is characterized in that there are bumps including two
The side plate of Mosaic face, it is intermediate after the splicing of side plate described in two pieces that there is type chamber, the screw rod group that side plate described in two pieces passes through both ends
Part is connected and fixed.
2. fiber cement composites according to claim 1 are uniaxially stretched specimen molding device, which is characterized in that institute
The type chamber stated is bone type, and the bone type type chamber overall length 330mm, both ends " bone type " width is 60mm, intermediate rectangular part
Length × width is 100mm × 30mm.
3. fiber cement composites according to claim 1 are uniaxially stretched specimen molding device, which is characterized in that every
A screw arbor assembly includes the screw rod and nut successively from front end backward with ailhead, smooth section, thread segment, the spiral shell
In side plate described in two pieces, the ailhead insertion side plate of one end, the thread segment of the other end is connect bar with nut.
4. fiber cement composites according to claim 1 are uniaxially stretched specimen molding device, which is characterized in that institute
The area of plane for stating ailhead is the 1/3 ~ 1/2 of device area of section, and insert depth is 10 ~ 20mm, section of smooth shaft and threaded rod
Face area is device area of section 1/3 ~ 1/4, and the length of smooth shaft is 70 ~ 90mm, and the length of threaded rod is 10 ~ 20mm, nut
Size and screw rod arrange in pairs or groups.
5. fiber cement composites according to claim 1 are uniaxially stretched specimen molding device, which is characterized in that institute
The material of side plate is stated as rigid organic glass or plastics.
6. fiber cement composites according to claim 1 are uniaxially stretched specimen molding device, which is characterized in that should
380 ~ 430mm of length of device, width are 80 ~ 100mm, 30 ~ 50mm of height.
7. a kind of carry out the method that fiber cement composites are uniaxially stretched specimen molding with above-mentioned apparatus, which is characterized in that
Method includes the following steps:
(1) two blocks of side plates are subjected to splicing according to the splicing seams of male and fomale(M&F) and surround a type chamber；
(2) both side plate is passed through with shank of bolt, ailhead is embedded in side plate, and smooth shaft passes through both side plate, and threaded rod extends outside side plate, so
Fixation, brush mould oil are tightened with nut afterwards；
(3) the fiber cement composites slurry being stirred is poured into device, is struck off, conserve 1d demoulding, standard curing is extremely
Then age tests uniaxial tensile strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500135.2A CN109001011A (en) | 2018-05-23 | 2018-05-23 | A kind of fiber cement composites are uniaxially stretched specimen molding device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500135.2A CN109001011A (en) | 2018-05-23 | 2018-05-23 | A kind of fiber cement composites are uniaxially stretched specimen molding device and method |
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|---|---|
| CN109001011A true CN109001011A (en) | 2018-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810500135.2A Pending CN109001011A (en) | 2018-05-23 | 2018-05-23 | A kind of fiber cement composites are uniaxially stretched specimen molding device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823822A (en) * | 2019-11-18 | 2020-02-21 | 东南大学 | Device and method for measuring radiation cooling efficiency of cement-based material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110823822A (en) * | 2019-11-18 | 2020-02-21 | 东南大学 | Device and method for measuring radiation cooling efficiency of cement-based material |
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Application publication date: 20181214 |