CN107891515B - Application method of concrete self-curing test mold - Google Patents
Application method of concrete self-curing test mold Download PDFInfo
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- CN107891515B CN107891515B CN201711078298.8A CN201711078298A CN107891515B CN 107891515 B CN107891515 B CN 107891515B CN 201711078298 A CN201711078298 A CN 201711078298A CN 107891515 B CN107891515 B CN 107891515B
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- 238000012360 testing method Methods 0.000 title claims abstract description 119
- 239000004567 concrete Substances 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 238000012423 maintenance Methods 0.000 claims abstract description 54
- 230000003020 moisturizing effect Effects 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 33
- 230000004888 barrier function Effects 0.000 claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 239000002861 polymer material Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 description 17
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000004321 preservation Methods 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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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
- G01N1/30—Staining; Impregnating ; Fixation; Dehydration; Multistep processes for preparing samples of tissue, cell or nucleic acid material and the like for analysis
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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
-
- 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
- G01N2001/366—Moulds; Demoulding
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
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- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of concrete curing, in particular to a using method of a concrete self-curing test mold. This concrete is from maintenance examination mould includes examination mould frame, the maintenance case of moisturizing and supports the lid, the maintenance case of moisturizing is upper end opening and can expand, folding rectangle box body, the maintenance case of moisturizing is surrounded by bottom surface board and four side boards and constitutes, the bottom surface board with the side board comprises first permeable bed, barrier grid plate layer, first water retaining water release material layer and the first water barrier that sets gradually from inside to outside, the maintenance lid includes the top panel, the top panel comprises second permeable bed, second water retaining water release material layer and the second water barrier that from the bottom up set gradually. The use method of the concrete self-curing test mold has the advantages of small curing workload, full curing of the concrete test block, water resource saving, repeated use and good curing quality of the concrete test block.
Description
Technical Field
The invention relates to the technical field of concrete curing, in particular to a using method of a concrete self-curing test mold.
Background
The concrete test block test method is a conventional method for testing the performance of concrete materials, and is widely used by concrete production, use and scientific research institutions. The common concrete test mould only has the function of a mould for forming the freshly mixed fluid concrete, and after the concrete is solidified and hardened and the test mould is removed, the test block needs to be moisturized and maintained. The conventional natural curing of the test block mainly adopts a plastic cloth covering curing mode, the covering is uncovered every day, manual watering is carried out for 2-3 times, covering is carried out again after water is poured, and the steps are repeated until the specified curing time is reached. The natural maintenance method needs manual watering every day, wastes time and labor, has the phenomena of uneven watering and difficult water absorption by the test block, and is not beneficial to the full maintenance of the test block. Meanwhile, the phenomenon of overflow of watering every time cannot be avoided, so that not only is water resource wasted, but also the site is not favorable for cleanness and safety. In addition, when a common test mold is used, watering and maintenance can be carried out after the mold is removed, and if the mold cannot be removed in time, early maintenance of concrete can be influenced.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a using method of a concrete self-curing test mould, which solves the problems that the existing concrete test block curing mode wastes time and labor, is not beneficial to full curing of the test block, wastes water resources, and can affect the early curing of concrete if the mould cannot be removed in time.
(II) technical scheme
In order to solve the technical problem, the invention provides a concrete self-maintenance test mould which comprises a test mould outer frame, wherein a moisture-preserving maintenance box is arranged on the inner side of the test mould outer frame, the moisture-preserving maintenance box is a rectangular box body with an opening at the upper end and capable of being unfolded and folded, the moisture-preserving maintenance box is formed by surrounding a bottom panel and four side panels, and the bottom panel and the side panels are respectively formed by a first permeable layer, a barrier plate layer, a first water-preserving and releasing material layer and a first water-resisting layer which are sequentially arranged from inside to outside; the upper end opening part of curing box of moisturizing is equipped with the maintenance lid, the maintenance lid includes the top panel, the top panel comprises second permeable layer, second moisturizing water release material layer and the second water barrier that from the bottom up set gradually.
Furthermore, the test mold outer frame is a rectangular frame structure without a bottom and a cover, and the rectangular frame structure is formed by connecting two L-shaped templates end to end.
Specifically, two ends of each L-shaped template are respectively provided with a tongue-and-groove with matched shapes, a through hole is formed in each tongue-and-groove, the two L-shaped templates are spliced through the tongue-and-groove, and a connecting pin bolt penetrates through the through hole.
Furthermore, reinforcing ribs are arranged on the back of the grid plate layer, the first water-retaining and water-releasing material layer is filled between the reinforcing ribs on the back of the grid plate layer, and the first waterproof layer is arranged outside the reinforcing ribs.
Furthermore, the peripheral edge of the grid plate layer is provided with bevel edges forming an angle of 45 degrees with the grid plate layer.
Specifically, the first water-retaining and water-releasing material layer and the second water-retaining and water-releasing material layer are both made of high molecular polymer materials.
Specifically, the edges of the periphery of the top panel are provided with lug plates capable of being bent downwards, and the lug plates are composed of two third waterproof layers.
Specifically, the ear plate is provided with a crack extending along the length direction of the ear plate, and a drawable tying belt is arranged through the crack.
Specifically, an inner bonding strip is arranged on the tying belt, and an outer bonding strip matched with the inner bonding strip is arranged on the outer side of the ear plate.
The invention also provides a use method of the concrete self-maintenance test mold, which comprises the following steps:
soaking the moisture-preserving curing box to absorb water until the moisture-preserving curing box is saturated;
splicing the two L-shaped templates end to end and inserting a connecting pin bolt to form a test mold outer frame;
folding each side panel of the moisturizing curing box after absorbing water to form a rectangular box body and sleeving the rectangular box body into the outer frame of the test mold;
pouring concrete into the moisturizing curing box;
after concrete is poured, obtaining a concrete test block after a preset time, and removing the outer frame of the test mold;
reserving the moisturizing curing box, sleeving a curing cover on the moisturizing curing box and the top of the concrete test block, covering an ear plate of the curing cover on the upper part of a side panel of the moisturizing curing box, tightening a tying belt on the curing cover and fastening through an adhesive strip, so that the moisturizing curing box and the curing cover are tightly enclosed around the concrete test block, and curing the concrete test block;
after the concrete test block is cured, respectively removing the curing cover and the moisturizing curing box, and taking out the cured concrete test block;
arranging the maintenance cover and the moisturizing maintenance box for next use.
(III) advantageous effects
The technical scheme of the invention has the following advantages:
according to the using method of the concrete self-curing test mold, during the curing of the concrete test block, the outer frame of the test mold plays a role in supporting and forming the concrete test block, the moisture-preserving curing box plays a role in assisting in supporting and forming the concrete test block, and the moisture required in the curing process of the concrete test block is provided through the moisture-preserving curing box and the curing cover. The invention does not need manual watering in the whole curing process, reduces the curing workload, can continuously and uniformly supply water without dead angles according to the requirement of the test block in the curing process, is beneficial to full curing of the test block, avoids the phenomenon of overflow of curing water everywhere, saves water resources, does not influence the early curing of the test block even if the test block outer frame is not removed in time due to the existence of the inner side moisture-preserving curing box, can be repeatedly used for many times, can be removed for turnover use after the concrete test block is molded, and can be removed for continuous turnover use after the specified curing time is reached.
Drawings
FIG. 1 is a schematic cross-sectional view of a concrete self-curing test mold according to an embodiment of the present invention;
FIG. 2 is a schematic view showing the connection of the outer frame of the concrete self-curing test mold according to the embodiment of the present invention;
FIG. 3 is a schematic view showing a developed state of a moisturizing curing box in a self-curing test of concrete according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a middle side panel of the concrete self-curing test mold according to the embodiment of the invention;
FIG. 5 is a schematic structural view of a curing cover in the concrete self-curing test mold according to an embodiment of the present invention.
In the figure: 101: an L-shaped template; 102: a tongue-and-groove; 103: connecting a pin bolt; 201: a bottom panel; 202: a side panel; 203: a first water permeable layer; 204: a barrier plate layer; 205: a first water-retaining and water-releasing material layer; 206: a first water-barrier layer; 207: reinforcing ribs; 208: a bevel edge; 301: a top panel; 302: an ear plate; 303: performing crack filling; 304: a mouth-tying band; 305: an inner adhesive strip; 306: and an outer adhesive strip.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 to 5, an embodiment of the present invention provides a concrete self-maintenance test mold, which includes a test mold outer frame, a moisture-preserving maintenance box disposed inside the test mold outer frame, and a maintenance cover disposed on the moisture-preserving maintenance box.
The moisturizing curing box is a rectangular box body with an opening at the upper end and capable of being unfolded and folded, the moisturizing curing box is formed by surrounding a bottom panel 201 and four side panels 202, and the bottom panel 201 and the side panels 202 are formed by a first permeable layer 203, a grid plate layer 204, a first water-retaining and water-releasing material layer 205 and a first waterproof layer 206 which are sequentially arranged from inside to outside.
The outer frame of the test mold is a rectangular frame structure without a bottom and a cover and formed by connecting two L-shaped templates 101 end to end. The two ends of each L-shaped template 101 are respectively provided with a rabbet 102 with matched shapes, a through hole which is communicated up and down is arranged on each rabbet 102, the two L-shaped templates 101 are spliced through the rabbet 102, a connecting pin 103 penetrates through the through holes, and the two L-shaped templates 101 are connected and fixed end to end through the connecting pin 103.
The L-shaped form 101 may be made of steel, PVC or composite material, and is required to have sufficient strength and rigidity.
The size of the test mold outer frame can be determined according to the size of the required concrete test block and the thickness of the moisturizing curing box, for example, the inner length of the test mold outer frame can be set to be the side length of the concrete test block to be manufactured plus the thickness of the moisturizing curing box which is 2 times of the side length of the concrete test block to be manufactured.
The grid plate layer 204 can be made of a metal plate or a non-metal material with the thickness of 1 mm-2 mm and difficult to rust, the plane size of the grid plate layer 204 can be determined according to the specification of a concrete test block, meshes are fully distributed on the grid plate layer 204, and the diameter of each mesh is 2 mm-3 mm.
Furthermore, the back of the grid plate layer 204 is provided with a reinforcing rib 207, and the reinforcing rib 207 is arranged to play a role in enhancing the plane rigidity of the grid plate on one hand, and on the other hand, the reinforcing rib can be supported on the inner surface of the test mold outer frame in the concrete test block forming process so as to transmit the lateral pressure of fresh concrete to the test mold outer frame, so that the test mold outer frame and the moisture preservation curing box form a firm and stable integral stress structure with enough strength and rigidity.
The reinforcing rib 207 is also made of a metal material or a non-metal material which is not prone to rust. In order to ensure the flatness of the surface of the concrete test block, the grid plate layers 204 provided with the reinforcing ribs 207 also need to have certain rigidity and strength, and the number of the reinforcing ribs 207, the spacing between the reinforcing ribs 207 and the mesh spacing between the grid plate layers 204 arranged on each grid plate layer 204 need to be determined according to the size specification of the concrete test block, so that the requirement of ensuring the flatness of the surface of the concrete test block is taken as a basis. The height of the reinforcing ribs 207 arranged on all the grid plate layers 204 is the same, so that after the moisture preservation curing box is combined, the reinforcing ribs 207 can be flatly supported on the inner surface of the outer frame of the test mould, and the force is uniformly stressed and transmitted. In order to ensure the flatness of the bottom surface of the concrete test block, reinforcing ribs 207 are arranged on the grid plate of the bottom panel 201 of the moisturizing curing box in both longitudinal and transverse directions.
Further, the peripheral edge of the grid plate layer 204 is provided with a bevel edge 208 forming an angle of 45 ° with the grid plate layer 204. The beveled edges 208 may be made of the same material as the grid plates 204, and when the curing box is assembled into a box, the beveled edges 208 of adjacent grid plates 204 can be tightly attached together to form a box without a cover and having tight seams.
Specifically, the first water-retaining and water-releasing material layer 205 is filled between the reinforcing ribs 207 on the back of the grid plate layer 204, and the first water-retaining and water-releasing material layer 205 is made of a non-toxic and harmless high polymer material with high absorption, high water retention and slow water release performance. The filling thickness of the first water-retaining and water-releasing material layer 205 can be determined according to the water absorption capacity of the high molecular polymer material, and the thickness does not exceed the height of the reinforcing rib 207 after water saturation. Moisture in the first water-retaining and water-releasing material layer 205 can pass through dense meshes on the grid plate layer 204 to carry out moisture-retaining curing on the concrete.
The first water barrier layer 206 is disposed outside the reinforcing ribs 207, and the first water barrier layer 206 is made of a tough and wear-resistant water-impermeable and dense material, such as a strong nonwoven fabric, and mainly plays a role in preventing water released from the first water retaining and releasing material layer 205 from escaping through the outside through the first water barrier layer 206.
The first permeable layer 203 is attached to the inner side of the grid plate layer 204, has a certain surface tension, and is in direct contact with the concrete surface. The first permeable layer 203 can be made of permeable cloth with compact texture and good water permeability. The first permeable layer 203 has two functions, namely, preventing cement mortar from entering meshes of the grid plate layer 204 during concrete pouring to influence the surface flatness of a concrete test block, and absorbing moisture in the first water-retaining and water-releasing material layer 205 to ensure that the moisture is uniformly transferred to the surface of the concrete so as to play a role in moisturizing and maintaining the concrete.
The maintenance lid is the top cap that sets up at the maintenance case upper end opening part that moisturizes, and in the maintenance process, the maintenance lid covers and plays the function of moisturizing on the concrete test block. Maintenance lid includes top panel 301 and sets up otic placode 302 that can buckle downwards on top panel 301's the edge all around, top panel 301 comprises second permeable layer, second water conservation and water release material layer and the second marine barrier that from the bottom up set gradually, the otic placode comprises two-layer third marine barrier.
Wherein the second permeable layer is made of the same material as the first permeable layer 203, the second water-retaining and water-releasing material layer is made of the same material as the first water-retaining and water-releasing material layer 205, and the second water barrier is made of the same material as the first water barrier 206
Wherein, the ear plate 302 is provided with a crack 303 extending along the length direction of the ear plate 302, a drawable binding belt 304 is arranged through the crack 303, and the maintenance cover is fixed on the moisture-keeping maintenance box through the binding belt 304. To prevent the cinch strap 304 from being fully withdrawn, one end of the cinch strap 304 may be secured to the adjacent ear panel 302.
An inner adhesive strip 305 is arranged on the tying band 304, and an outer adhesive strip 306 matched with the inner adhesive strip 305 is arranged on the outer side of the ear plate 302.
The size of the curing cover can be determined according to the specification of the concrete test block, so that the curing cover can be easily sleeved on the top of the moisturizing curing box and the top of the concrete test block but is not excessively loose, after the curing cover is placed on the top of the moisturizing curing box and the top of the concrete test block, the tying belt 304 is tightened, and the inner adhesive strip 305 on the tying belt 304 and the outer adhesive strip 306 on the corresponding ear plate 302 are mutually adhered together. The function of maintenance lid mainly has two, firstly through binding maintenance lid on the maintenance box of moisturizing after demolising the test mould frame, makes the maintenance box of moisturizing and maintenance lid form a enclosure space parcel and live the concrete test block, secondly can provide the maintenance of moisturizing for the top of concrete test block.
The concrete self-curing test mold provided by the embodiment of the invention has the following advantages:
1. and manual watering is not needed in the whole curing process, so that the curing workload is reduced.
2. The water supply device can continuously and uniformly supply water without dead angles in maintenance according to the requirements of test blocks, not only is favorable for the full maintenance of the test blocks, but also avoids the phenomenon that maintenance water overflows everywhere, and saves water resources.
3. Due to the existence of the inner side curing box, even if the outer frame of the test mold is not removed in time, the early curing of the test block is not influenced.
4. But repetitious usage, the turnover use can be dismantled to the examination mould frame after the test block shaping for a certain time, and interior curing box can get rid of after reaching the maintenance time of regulation and continue the turnover use.
On the basis of the above embodiment, an embodiment of the present invention further provides a method for using a concrete self-curing test mold, where the method uses the concrete self-curing test mold described in the above embodiment, and the method specifically includes the following steps:
before use, the moisture-preserving curing box is soaked and absorbs water until the moisture-preserving curing box is saturated.
Two L-shaped templates 101 are spliced end to end and inserted with connecting pins 103 to form a test template outer frame with a supporting function.
And folding each side panel 202 of the moisturizing curing box after absorbing water to form a rectangular box body and sleeving the rectangular box body into the outer frame of the test mold.
And pouring concrete into the moisturizing curing box.
And (3) obtaining a concrete test block after a preset time after the concrete pouring is finished, removing the test mold outer frame, and removing the test mold outer frame after the concrete pouring is finished for 24 hours generally.
Reserving the moisturizing curing box, sleeving a curing cover on the moisturizing curing box and the top of the concrete test block, respectively covering and wrapping the ear plates 302 around the curing cover on the upper parts of the side panels 202 of the moisturizing curing box, tightening the tying belt 304 on the curing cover and fastening the tying belt through the bonding strip, so that the moisturizing curing box and the curing cover are tightly enclosed around the concrete test block, and curing the concrete test block.
And after the concrete test maintenance is finished, the maintenance cover and the moisturizing maintenance box are detached respectively, and the concrete test block after the maintenance is finished is taken out.
Arranging the maintenance cover and the moisturizing maintenance box for next use.
During the concrete test block curing, along with the proceeding of cement hydration, a capillary tube in the concrete is formed and gradually has certain water absorption capacity, under the action of water absorption negative pressure of the capillary tube, water in the first water permeable layer 203 and the second water permeable layer is firstly absorbed by the concrete, the water absorption negative pressure of the first water permeable layer 203 is transmitted to the first water retaining and releasing material layer 205 through meshes on the grid plate layer 204, the water absorption negative pressure of the second water permeable layer is directly transmitted to the second water retaining and releasing material layer, the first water retaining and releasing material layer 205 and the second water retaining and releasing material layer can slowly release the water of the first water permeable layer 203 and the second water permeable layer, and the water permeates the first water permeable layer 203 and the second water permeable layer and then uniformly supplies the water to the concrete test block. Because the outmost first water barrier 206 that is of moisturizing maintenance case, the outmost second water barrier that is of maintenance lid, consequently can effectively avoid the inside moisture of water retention and water release material layer and concrete test block to scatter and disappear, abundant moisturizing maintenance makes that cement hydration is abundant, the concrete is compacter, the concrete test block quality is more guaranteed, if the test mould frame fails in time to demolish, also can not influence the supply of concrete test block maintenance moisture.
In summary, in the using method of the concrete self-curing test mold provided by the invention, during the curing of the concrete test block, the outer frame of the test mold plays a role in supporting and forming the concrete test block, the moisture preservation curing box plays a role in assisting in supporting and forming the concrete test block, and the moisture required in the curing process of the concrete test block is provided through the moisture preservation curing box and the curing cover. The invention has the advantages of small maintenance workload, full maintenance of the concrete test block, water resource saving, repeated use and good maintenance quality of the concrete test block.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. The use method of the concrete self-curing test mold is characterized by comprising the following steps:
soaking the moisture-preserving curing box to absorb water until the moisture-preserving curing box is saturated;
splicing the two L-shaped templates end to end and inserting a connecting pin bolt to form a test mold outer frame;
folding each side panel of the moisturizing curing box after absorbing water to form a rectangular box body and sleeving the rectangular box body into the outer frame of the test mold;
pouring concrete into the moisturizing curing box;
after concrete is poured, obtaining a concrete test block after a preset time, and removing the outer frame of the test mold;
reserving the moisturizing curing box, sleeving a curing cover on the moisturizing curing box and the top of the concrete test block, covering an ear plate of the curing cover on the upper part of a side panel of the moisturizing curing box, tightening a tying belt on the curing cover and fastening through an adhesive strip, so that the moisturizing curing box and the curing cover are tightly enclosed around the concrete test block, and curing the concrete test block;
after the concrete test block is cured, respectively removing the curing cover and the moisturizing curing box, and taking out the cured concrete test block;
arranging the maintenance cover and the moisturizing maintenance box for the next use;
the moisture-preserving curing box is formed by surrounding a bottom panel and four side panels, wherein the bottom panel and the side panels are respectively formed by a first permeable layer, a barrier plate layer, a first water-preserving and releasing material layer and a first waterproof layer which are sequentially arranged from inside to outside; the upper end opening part of the moisture-preserving curing box is provided with a top panel, and the top panel comprises a second permeable layer, a second moisture-preserving and water-releasing material layer and a second waterproof layer which are sequentially arranged from bottom to top.
2. The use method of claim 1, wherein two ends of the L-shaped template are respectively provided with a groove and a tongue with matched shapes, the groove and the tongue are provided with through holes, the two L-shaped templates are spliced through the groove and the connecting pin bolt penetrates through the through holes to form the test mold outer frame.
3. The use method of claim 1, wherein the first water-retaining and water-releasing material layer and the second water-retaining and water-releasing material layer are both made of high molecular polymer materials.
4. The use of the above-mentioned device as claimed in claim 1, wherein said ear plate is provided at a peripheral edge of said top panel so as to be bendable downward, a slit extending in a longitudinal direction of said ear plate is provided in said ear plate, and said cinch strap is passed through said slit.
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| CN201711078298.8A CN107891515B (en) | 2017-11-06 | 2017-11-06 | Application method of concrete self-curing test mold |
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| CN201711078298.8A CN107891515B (en) | 2017-11-06 | 2017-11-06 | Application method of concrete self-curing test mold |
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|---|---|---|---|---|
| CN108442717B (en) * | 2018-05-24 | 2024-05-03 | 兰州理工大学 | Side surface maintenance device for concrete structure and construction method |
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