CN204640455U - A kind of precracking armored concrete specimen molding mould - Google Patents
A kind of precracking armored concrete specimen molding mould Download PDFInfo
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- CN204640455U CN204640455U CN201520303874.4U CN201520303874U CN204640455U CN 204640455 U CN204640455 U CN 204640455U CN 201520303874 U CN201520303874 U CN 201520303874U CN 204640455 U CN204640455 U CN 204640455U
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Abstract
The utility model discloses a kind of precracking armored concrete specimen molding mould, mould comprises base plate, the dividing plate of two blocks of side plates and more than two pieces, side plate is set in parallel in base plate both sides, dividing plate is parallel to be inserted between two blocks of side plates, base plate, the more than one cavity volume for formation of concrete test specimen is surrounded between side plate and dividing plate, block rubber is embedded with in the middle part of the dividing plate being positioned at cavity volume wherein side, dividing plate and block rubber lean on the same position place of cavity volume side to offer a longitudinal preset slot, the thin slice of the different-thickness for precast concrete test specimen crack can be plugged in preset slot, two blocks of side plates are equipped with more than one piece dismountable steel bar positioning block, steel bar positioning block is provided with two locating holes.The utility model can reserve crack in armored concrete test specimen side, and it has structure simply, does not need more mold exchange can realize the reinforcing bar of different-diameter and the advantage such as location, conversion thickness of protection tier of stainless steel tube.
Description
Technical field
The utility model relates to mould, particularly relates to the concrete sample mould reserving crack, side.
Background technology
Reinforced concrete structure is current topmost a kind of version, but due to its material self and environment for use, makes reinforced concrete structure premature failure, loses its durability, causes huge economic loss.During current laboratory research concrete durability, usually to study the corrosion state of reinforcing bar, and the impact of crack on steel bar corrosion will be studied.During research steel bar corrosion, usually bar diameter will be considered, thickness of concrete cover, the impact of fracture width.Existing mould is only applicable to the research that single bar diameter and protective layer thickness affect steel bar corrosion, often needs more mold exchange after change bar diameter or protective layer thickness.In addition, the method reserving crack in forming surface usually adopted, be unfavorable for shaping and surperficial floating, thin slice is not easily fixed, and usually cause prefabricated crack to misplace, the crack obtained is undesirable.In order to solve this problem, a kind of armored concrete mould reserving crack in test specimen side need be provided.
Utility model content
The technical problems to be solved in the utility model is the deficiency of thin slice not easily fixing, the easily dislocation overcoming prior art surface crack, provides a kind of structure simply, not need more mold exchange can realize the reinforcing bar of different-diameter and the location of stainless steel tube, the armored concrete mould reserving crack in armored concrete test specimen side of conversion thickness of protection tier.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is:
A kind of precracking armored concrete specimen molding mould, comprise base plate, the dividing plate of two blocks of side plates and more than two pieces, described side plate is set in parallel in base plate both sides, described dividing plate is parallel to be inserted between two blocks of side plates, described base plate, the more than one cavity volume for formation of concrete test specimen is surrounded between side plate and dividing plate, block rubber is embedded with in the middle part of the dividing plate being positioned at described cavity volume wherein side, dividing plate and block rubber lean on the same position place of cavity volume side to offer a longitudinal preset slot, the thin slice of the different-thickness for precast concrete test specimen crack can be plugged in described preset slot, two blocks of side plates are equipped with more than one piece dismountable steel bar positioning block, steel bar positioning block is provided with two locating holes for spacer bar and stainless steel tube.
Further improvement as technique scheme:
Preferably, on described base plate and side plate interior sides be equipped with groove, be bolted to connection in the groove that described side plate is inserted in base plate; The two ends of described dividing plate are inserted in side plate groove, and the bottom of dividing plate is inserted in the groove of base plate, and the two ends of two blocks of side plates are respectively fixedly connected with by a split bolt.
Preferably, the preset slot width on described dividing plate is 1mm, and the preset slot width on block rubber reduces from interior gradually to cavity volume direction, the widest part is 1mm, and the rubber of preset slot both sides is radian change, and is tangential on preset slot opening part, described thin slice is stainless steel thin slice, and thickness is not more than 1mm.
Preferably, offer a cavity in the middle part of described dividing plate, described block rubber is bonded in described cavity by glue.
Preferably, described steel bar positioning block is linked by loose-leaf card and is connected on side plate, and the locating hole by described preset slot side on steel bar positioning block is reinforcing bar locating hole, and another locating hole is stainless-steel pipe locating hole.
Preferably, described dividing plate is 4 pieces, and described side plate, base plate and 4 pieces of dividing plates surround the cavity volume described in 3.
Preferably, the thickness of described base plate, side plate and dividing plate is 15mm, and the width of described groove is 15mm, and the degree of depth is 5mm, and described cavity volume is 100mm*100*100mm.
Preferably, described steel bar positioning block and loose-leaf buckle are aluminum alloy materials product, and dividing plate, base plate and side plate are plastic part.
Utilize the method for mould of the present utility model shaping precracking armored concrete test specimen as follows:
A. as required, the steel bar positioning block loose-leaf card spiral-lock of dimension is selected to be located on two blocks of side plates;
B. kept flat by base plate, the side plate of two pieces of band steel bar positioning blocks inserts in the groove of base plate, then inserts the dividing plate of requirement successively;
C. the split bolt at side plate two ends is tightened, and by the screw tightening of base plate, complete mould assembling;
D. the reinforcing bar of dimension is inserted steel bar positioning block by the locating hole of preset slot side, insert in another locating hole of steel bar positioning block using when linear polarization method detects steel bar corrosion as the stainless steel tube of reference electrode;
E. as required, will inject in the preset slot of dividing plate and block rubber with thick stainless steel thin slice with precracking;
F. the concrete be stirred is loaded in the mould cavity volume assembled, vibration compacting on a vibration table, floating, after concrete final set, extract stainless steel thin slice, namely obtain the concrete sample being with crack, side.
Compared with prior art, the utility model has the advantage of:
(1) the utility model is provided with preset slot in dividing plate side, and can reserve crack in test specimen side, reserve crack relative on surface, its thin slice is easily fixed, and crack not easily misplaces and test specimen is better floating;
(2) the utility model is embedded block rubber in dividing plate, block rubber is also offered the preset slot of width gradual change, and it utilizes the elasticity of rubber can fix the stainless steel thin slice of different-thickness, can the crack of prefabricated different in width, and structure is simple, applied widely;
(3) steel bar positioning block in the utility model is linked by loose-leaf card and is connected on side plate, replacing for convenience detach, experimentally can need the protective layer thickness regulating reinforcing bar, realize the reinforcing bar of different-diameter and the location of stainless steel tube;
(4) side plate in the utility model be connected by groove and screw between base plate firm, good integrity;
(5) mould of the present utility model is easily assembled, and adopt plastic part, light and corrosion-resistant, low price, recycles rate high.
Accompanying drawing explanation
Fig. 1 is the perspective view of precracking armored concrete specimen molding mould of the present utility model.
Fig. 2 is the perspective view of the first dividing plate in the utility model.
Fig. 3 is the main TV structure schematic diagram of the first dividing plate in the utility model.
Fig. 4 is the sectional perspective section structure for amplifying schematic diagram of the first dividing plate and block rubber in the utility model.
Fig. 5 is the plan structure schematic diagram of base plate in the utility model.
Marginal data:
1, side plate; 2, the first dividing plate; 3, second partition; 4, base plate; 41, longitudinal fluting; 42, transverse concave groove; 5, block rubber; 6, steel bar positioning block; 61, reinforcing bar locating hole; 62, stainless steel tube locating hole; 7, loose-leaf buckle; 8, preset slot; 9, split bolt.
Detailed description of the invention
For the ease of understanding the utility model, hereafter will do to describe more comprehensively, meticulously to the utility model in conjunction with Figure of description and preferred embodiment, but protection domain of the present utility model is not limited to following specific embodiment.
As shown in Fig. 1 ~ Fig. 5, a kind of precracking armored concrete specimen molding Die Embodiment of the present utility model, comprise base plate 4, two blocks of side plates 1 and four pieces of dividing plates (also can be two pieces of blocks in other embodiments, three pieces of blocks or more than five pieces), wherein three pieces is the first dividing plate 2, one piece is second partition 3, two blocks of side plates 1 are set in parallel in base plate 4 both sides, three piece of first dividing plate 2 and one piece of second partition 3 is parallel is successively inserted between two blocks of side plates 1, base plate 4, three cavity volumes for formation of concrete test specimen are surrounded between side plate 1 and four pieces of dividing plates, cavity volume is the cube cavity volume of 100mm*100*100mm.The middle part of each first dividing plate 2 offers a cavity, and to be bondd a block rubber 5 by glue in cavity, the surface of block rubber 5 is concordant with the surface of the first dividing plate 2.First dividing plate 2 and block rubber 5 lean on the same position place of cavity volume side to offer a longitudinal preset slot 8, the stainless steel thin slice (not shown) of the different-thickness for precast concrete test specimen crack can be plugged in preset slot 8, two blocks of side plates 1 are equipped with three pieces of dismountable steel bar positioning blocks 6, steel bar positioning block 6 is provided with two locating holes.
In the present embodiment, the thickness of base plate 4, side plate 1, first dividing plate 2 and second partition 3 is the plastic part of 15mm.Base plate 4 is provided with multiple platform higher than surrounding, two longitudinal flutings 41 and four transverse concave grooves 42 are formed between platform, side plate 1 is inserted in longitudinal fluting 41, and be fixedly connected with by the bolt be arranged on base plate 4, also side plate groove is provided with inside side plate 1, the two ends of the first dividing plate 2 and second partition 3 are inserted in side plate groove, and bottom is inserted in the transverse concave groove 42 of base plate 4, and the two ends of two blocks of side plates 1 are respectively fixedly connected with by a split bolt 9.In the present embodiment, the width of each bar groove is 15mm, and the degree of depth is 5mm.
In the present embodiment, steel bar positioning block 6 is connected on side plate 1 by loose-leaf buckle 7, and loose-leaf buckle 7 one end hinge is fixedly connected with side plate 1, and other end hinge can rotate by the axle in the middle of two hinges, is connected by screw with steel bar positioning block 6.Steel bar positioning block 6 and loose-leaf buckle 7 are aluminum alloy materials product.Locating hole by preset slot 8 side on steel bar positioning block 6 is reinforcing bar locating hole 61, and another adjacent with it locating hole is stainless steel tube locating hole 62, and stainless steel tube is as reference electrode during linear polarization method detection steel bar corrosion.The specification of steel bar positioning block 6 is replaceable, is convenient to realize the reinforcing bar of different-diameter and the location of stainless steel tube, and can change the thickness of cover to reinforcement.
In the present embodiment, preset slot 8 width in the middle of the first dividing plate 2 is 1mm, and the degree of depth is 5mm.Preset slot 8 width on block rubber 5 reduces from interior gradually to cavity volume direction, and the change of its rubber radian by preset slot 8 both sides controls, and both sides arc is tangential on preset slot 8 opening part, and preset slot 8 the widest part on block rubber 5 is 1mm.The stainless steel thin slice of the different-thickness of 1mm can be not more than by fixed thickness by the radian preset slot on block rubber 5.Before casting concrete test specimen, will inject in above-mentioned preset slot with thick stainless steel thin slice with reserved fracture width, extracted by stainless steel thin slice after concrete final set, test specimen is reserved crack and is completed.This mould can reserve the wide crack, side of maximum 1 mm.
By the method for prefabricated three the band side precracking armored concrete test specimens of above-mentioned mould of the present utility model, concrete operation step is as follows:
A. as required, select the steel bar positioning block 6 of dimension, be not installed on two blocks of side plates with loose-leaf card deduction of points, the screw that loose-leaf buckle is connected with steel bar positioning block rises with plum blossom and tightens;
B. kept flat by base plate, the side plate two pieces having been installed steel bar positioning block inserts in the longitudinal fluting of base plate, then inserts the first dividing plate of one piece of second partition and three pieces of block rubbers that bondd successively, forms three specimen molding cavity volumes;
C. the split bolt at side plate two ends is tightened, and by the screw tightening of base plate, complete mould assembling;
D. the reinforcing bar of dimension is inserted steel bar positioning block by the locating hole of preset slot side, insert in another locating hole of steel bar positioning block using when linear polarization method detects steel bar corrosion as the stainless steel tube of reference electrode;
E. as required, three pieces and test specimen precracking are injected in the vertical preset slot of three piece of first dividing plate and block rubber with thick stainless steel thin slice (the thickest 1mm of being) respectively;
F. loaded by the concrete be stirred in the mould cavity volume assembled, vibration compacting on a vibration table, floating, after concrete final set, extract stainless steel thin slice, namely the disposable length of side obtaining three pieces of band cracks, side is the concrete cube test specimen of 100mm.
The method for dismounting of this mould is: rise the screw of base plate to unscrew with plum blossom and take off, unload lower shoe, then taken off by the split bolt of side plate both sides, remove side plate, finally take off the first dividing plate and second partition, take off test specimen, mould release completes.
Claims (8)
1. a precracking armored concrete specimen molding mould, it is characterized in that: comprise base plate, the dividing plate of two blocks of side plates and more than two pieces, described side plate is set in parallel in base plate both sides, described dividing plate is parallel to be inserted between two blocks of side plates, described base plate, the more than one cavity volume for formation of concrete test specimen is surrounded between side plate and dividing plate, block rubber is embedded with in the middle part of the dividing plate being positioned at described cavity volume wherein side, dividing plate and block rubber lean on the same position place of cavity volume side to offer a longitudinal preset slot, the thin slice of the different-thickness for precast concrete test specimen crack can be plugged in described preset slot, two blocks of side plates are equipped with more than one piece dismountable steel bar positioning block, steel bar positioning block is provided with two locating holes for spacer bar and stainless steel tube.
2. mould according to claim 1, is characterized in that: on described base plate and side plate interior sides be equipped with groove, be bolted to connection in the groove that described side plate is inserted in base plate; The two ends of described dividing plate are inserted in side plate groove, and the bottom of dividing plate is inserted in the groove of base plate, and the two ends of two blocks of side plates are respectively fixedly connected with by a split bolt.
3. mould according to claim 2, it is characterized in that: the preset slot width on described dividing plate is 1mm, preset slot width on block rubber reduces from interior gradually to cavity volume direction, the widest part is 1mm, the rubber of preset slot both sides is radian change, and being tangential on preset slot opening part, described thin slice is stainless steel thin slice, and thickness is not more than 1mm.
4. mould according to claim 3, is characterized in that: offer a cavity in the middle part of described dividing plate, and described block rubber is bonded in described cavity by glue.
5. the mould according to any one of claim 1 ~ 4, it is characterized in that: described steel bar positioning block is linked by loose-leaf card and is connected on side plate, locating hole by described preset slot side on steel bar positioning block is reinforcing bar locating hole, and another locating hole is stainless steel tube locating hole.
6. the mould according to any one of claim 1 ~ 4, is characterized in that: described dividing plate is 4 pieces, and described side plate, base plate and 4 pieces of dividing plates surround the cavity volume described in 3.
7. the mould according to any one of claim 2 ~ 4, is characterized in that: the thickness of described base plate, side plate and dividing plate is 15mm, and the width of described groove is 15mm, and the degree of depth is 5mm, and described cavity volume is 100mm*100*100mm.
8. the mould according to any one of claim 1 ~ 4, is characterized in that: described steel bar positioning block and loose-leaf buckle are aluminum alloy materials product, and dividing plate, base plate and side plate are plastic part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520303874.4U CN204640455U (en) | 2015-05-13 | 2015-05-13 | A kind of precracking armored concrete specimen molding mould |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520303874.4U CN204640455U (en) | 2015-05-13 | 2015-05-13 | A kind of precracking armored concrete specimen molding mould |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827550A (en) * | 2015-05-13 | 2015-08-12 | 中南大学 | Precracking rebar concrete sample molding die and sample molding method |
| CN105196407A (en) * | 2015-09-18 | 2015-12-30 | 方洪 | Production die of concrete blue roofing tiles |
| CN105269661A (en) * | 2015-10-31 | 2016-01-27 | 济南大学 | Disassembly and assembly convenient cement sample mold |
| CN108827718A (en) * | 2018-04-08 | 2018-11-16 | 王珍珍 | A kind of novel small-sized compression strength sample preparation box structure |
| CN111844357A (en) * | 2020-08-03 | 2020-10-30 | 河南城建学院 | Forming device is used in precast concrete processing |
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2015
- 2015-05-13 CN CN201520303874.4U patent/CN204640455U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827550A (en) * | 2015-05-13 | 2015-08-12 | 中南大学 | Precracking rebar concrete sample molding die and sample molding method |
| CN104827550B (en) * | 2015-05-13 | 2017-02-22 | 中南大学 | Precracking rebar concrete sample molding die and sample molding method |
| CN105196407A (en) * | 2015-09-18 | 2015-12-30 | 方洪 | Production die of concrete blue roofing tiles |
| CN105269661A (en) * | 2015-10-31 | 2016-01-27 | 济南大学 | Disassembly and assembly convenient cement sample mold |
| CN105269661B (en) * | 2015-10-31 | 2017-07-07 | 济南大学 | Easy-to-mount cement sample mould |
| CN108827718A (en) * | 2018-04-08 | 2018-11-16 | 王珍珍 | A kind of novel small-sized compression strength sample preparation box structure |
| CN111844357A (en) * | 2020-08-03 | 2020-10-30 | 河南城建学院 | Forming device is used in precast concrete processing |
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