CN107285693B - A kind of preparation method of the cast-in-place concrete non-dismantling formwork with self-reparing capability - Google Patents
A kind of preparation method of the cast-in-place concrete non-dismantling formwork with self-reparing capability Download PDFInfo
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- CN107285693B CN107285693B CN201710302431.7A CN201710302431A CN107285693B CN 107285693 B CN107285693 B CN 107285693B CN 201710302431 A CN201710302431 A CN 201710302431A CN 107285693 B CN107285693 B CN 107285693B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/10—Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Revetment (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The preparation method of the invention discloses a kind of cast-in-place concrete non-dismantling formwork with self-reparing capability, comprising steps of 1) according to the Sizing requirements of required cast-in-place concrete non-dismantling formwork prepare in punching block and outer steel mould；2) prepare concrete material；3) prepared concrete material is mixed and stirred；4) the first layer concrete is poured；5) it is put into inner template, is slowly pushed into the interior punching block of bottom surface hole；6) the second layer concrete is poured；7) third layer concrete is poured；8) demoulding and maintenance.The present invention can be perceived independently and repair fine cracks；Template is prefabricated components, and constructing operation is simple and can be the pre-buried progressive die plate of part reinforcing bar；Have the function of independently repairing crack, delays harmful substance to penetrate into concrete Corrosion Reinforcement along body structure surface crack, improve the durability of reinforced concrete structure, extend its service life, and traditional plank sheathing can be replaced, is suitable for industrialized production and quick construction, timber resources is saved, prospect is very wide.
Description
Technical field
The present invention relates to the field of building materials, specifically a kind of cast-in-place concrete non-dismantling formwork with self-reparing capability
Preparation method.
Background technique
In the prior art, the frequent work with cracking of concrete component is unfavorable for the durability of structure and manually periodically repairs
It mends and its takes time and effort, plank sheathing needs to remove cleaning after concrete forming, and lumber consumption is big, and few using cycle, and shows
Not the problem of various concrete non-dismantling formworks having not can solve concrete cracking.As civil engineering industry is for concrete structure
It is huge to exempt from the smart material prospect torn open and can independently mended a split for the call of part life requirement increased with green building
Greatly.
Summary of the invention
For solve the problems, such as in the prior art concrete structural surface cracking can only manually grouting mending one by one, the present invention
Purpose is to provide a kind of cast-in-place concrete non-dismantling formwork that can independently perceive, repair crack, requires using with movable die plate
Stiffness and strength, and meet save require.
The purpose of the present invention will be realized by following technical measures:
A kind of preparation method of the cast-in-place concrete non-dismantling formwork with self-reparing capability, comprising steps of
1) interior punching block and outer steel mould are prepared according to the Sizing requirements of required cast-in-place concrete non-dismantling formwork, wherein institute
The bottom interval certain distance for stating interior punching block is evenly arranged with several holes, and interior punching block and outer steel mould sectional dimension difference are required existing
Pouring concrete non-dismantling formwork protective layer thickness；
2) prepare concrete material, concrete material includes following substance by percentage to the quality: cement 16.45%-
18.55%, flyash 3.3%-5.5%, sodium metasilicate renovation agent 0.7%-1.05%, fine aggregate 30.8%-31%, coarse aggregate 39.3%-
39.4%, PVA fiber 0.05%-0.11%, water-reducing agent 0.32%, mixing water 6.57%-6.58%；
3) prepared concrete material is mixed and stirred；
4) the first layer concrete is poured, a layer concrete is poured in outer steel mould, exempts from its thickness greater than cast-in-place concrete
The thickness of form removal vibrates uniformly；
5) it is put into inner template, is slowly pushed into the interior punching block of bottom surface hole, so that the concrete after vibrating in step 4)
Gap between interior punching block and outer steel mould rises, and lower concrete thickness meets design requirement；
6) the second layer concrete is poured, inside and outside punching block position is fixed, is poured in the gap between inside punching block and outer steel mould
One layer concrete simultaneously vibrates；
7) third layer concrete is poured, step 6) is repeated, until the gap between interior punching block and outer steel mould is filled；
8) demoulding and maintenance cover straw bag or burlap in concrete surface, watering is protected after the concrete initial set of step 7)
Wet, curing in the mold at least 5 days, then demoulding continued moisture-keeping maintaining at least 25 days.
Further, in step 1), the diameter of described hole is 20mm, spacing 80mm.
Further, in step 2, the sodium metasilicate renovation agent is with epoxy resin and fine sand package sodium metasilicate particle
Made sheet renovation agent.
Further, in step 2, the cement is PO42.5 class g cement.
Further, in step 2, the fine aggregate is middle sand.
Further, in step 2, the coarse aggregate is continuous grading rubble of the partial size within the scope of 5mm-10mm.
Further, in step 2, the PVA fiber draws strong 1600MPa or more, length 6-12mm, initial modulus
35GPa。
Further, in step 2, the flyash is I grade of flyash.
Further, in step 2, the water-reducing agent is the polycarboxylate superplasticizer mother liquor of solid content 40%.
Compared with prior art, repair materials are added in concrete to meet repair function in the present invention；It is added in a template
Fibrous material is to enhance its tensile splitting strength, control critical eigenvalue development；As prefabricated components, preburying part steel splitting muscle or table wherein
Face carries out certain processing with the binding ability of pouring concrete and template after enhancing.Especially, this product has autonomous reparation coagulation
The ability of soil structure surface crack has saved the manpower financial capacity for repairing crack；This product is not required to demoulding, construction is simple；This product
For prefabricated components, production process is simple；Thermal insulation material etc. can be compound in the inner surface of this product.This product can direct plunge into reality
As the template of cast-in-place concrete in the engineering of border.
Detailed description of the invention
Fig. 1 is that the cast-in-place concrete non-dismantling formwork section prepared by the embodiment of the present invention with self-reparing capability is illustrated
Figure.
Fig. 2 is that the cast-in-place concrete non-dismantling formwork solid prepared by the embodiment of the present invention with self-reparing capability is illustrated
Figure.
Fig. 3 is outer steel mould schematic cross-section.
Fig. 4 is interior punching block schematic cross-section.
Fig. 5 is interior punching block schematic bottom view.
Fig. 6 is the casting process schematic diagram of cast-in-place concrete non-dismantling formwork.
Specific embodiment
Before explaining in detail the embodiment of inventive concept disclosed herein, it should be understood that inventive concept is in its application
In be not limited to that the construction and arrangement of component proposing in book or shown in the accompanying drawings or step or methodology will be illustrated next
Details.Inventive concept disclosed herein can be other embodiments or can practice or implement in many ways.Equally, should
Understand, the wording and term used herein is for the purpose of illustration and be should not be considered as limitation.
Embodiment one
A kind of preparation method of the cast-in-place concrete non-dismantling formwork with self-reparing capability, comprising steps of
1) interior punching block and outer steel mould are prepared according to the Sizing requirements of required cast-in-place concrete non-dismantling formwork, wherein institute
The bottom interval certain distance for stating interior punching block is evenly arranged with several holes, and interior punching block and outer steel mould sectional dimension difference are required existing
Pouring concrete non-dismantling formwork protective layer thickness, the cast-in-place concrete non-dismantling formwork cross sectional shape of the present embodiment be rectangle flute profile (see
Fig. 1 and Fig. 2), therefore, the cross sectional shape of interior punching block and outer steel mould is also rectangle flute profile (see Fig. 3 and Fig. 4)；
2) prepare concrete material, concrete material includes following substance by percentage to the quality: cement 16.45%, fine coal
Grey 5.5%, sodium metasilicate renovation agent 0.7%, fine aggregate 31%, coarse aggregate 39.4%, PVA fiber 0.05%, water-reducing agent 0.32%, mixing water
6.58%；
3) prepared concrete material is mixed and stirred, after blender hanging, aggregate and PVA fiber is added, stirring
About 30 seconds；Then cement is added, stir about 30 seconds；Then water and water-reducing agent are added, stir about 1 divides 30 seconds, by renovation agent
It is added, stirs about 1 minute；
4) the first layer concrete is poured, a layer concrete is poured in outer steel mould, exempts from its thickness greater than cast-in-place concrete
The thickness of form removal vibrates uniform (see Fig. 6 a)；
5) it is put into inner template, is slowly pushed into the interior punching block of bottom surface hole, so that the concrete after vibrating in step 4)
Gap between interior punching block and outer steel mould rises, and lower concrete thickness meets design requirement (see Fig. 6 b)；
6) the second layer concrete is poured, inside and outside punching block position is fixed, is poured in the gap between inside punching block and outer steel mould
One layer concrete simultaneously vibrates (see Fig. 6 c)；
7) third layer concrete is poured, step 6) is repeated, until the gap between interior punching block and outer steel mould is filled (see figure
6d)；
8) demoulding and maintenance cover straw bag or burlap in concrete surface, watering is protected after the concrete initial set of step 7)
Wet, curing in the mold at least 5 days, then demoulding continued moisture-keeping maintaining at least 25 days.
Specifically, the diameter of described hole is 20mm in step 1), spacing is 80mm (see Fig. 5).
In step 2, the sodium metasilicate renovation agent is the piece made by epoxy resin and fine sand package sodium metasilicate particle
Shape renovation agent.The cement is PO42.5 class g cement.The fine aggregate is middle sand.The coarse aggregate is partial size in 5mm-10mm
Continuous grading rubble in range.The PVA fiber draws strong 1600MPa or more, length 6mm, initial modulus 35GPa.The powder
Coal ash is I grade of flyash.The water-reducing agent is the polycarboxylate superplasticizer mother liquor of solid content 40%.
Embodiment two
A kind of preparation method of the cast-in-place concrete non-dismantling formwork with self-reparing capability, comprising steps of
1) interior punching block and outer steel mould are prepared according to the Sizing requirements of required cast-in-place concrete non-dismantling formwork, wherein institute
The bottom interval certain distance for stating interior punching block is evenly arranged with several holes, and interior punching block and outer steel mould sectional dimension difference are required existing
Pouring concrete non-dismantling formwork protective layer thickness, the cast-in-place concrete non-dismantling formwork cross sectional shape of the present embodiment be rectangle flute profile (see
Fig. 1 and Fig. 2), therefore, the cross sectional shape of interior punching block and outer steel mould is also rectangle flute profile (see Fig. 3 and Fig. 4)；
2) prepare concrete material, concrete material includes following substance by percentage to the quality: cement 17.15%, fine coal
Grey 4.7%, sodium metasilicate renovation agent 0.8%, fine aggregate 31%, coarse aggregate 39.38%, PVA fiber 0.07%, water-reducing agent 0.32%, mix
Water 6.58%；
3) prepared concrete material is mixed and stirred, after blender hanging, aggregate and PVA fiber is added, stirring
About 30 seconds；Then cement is added, stir about 30 seconds；Then water and water-reducing agent are added, stir about 1 divides 30 seconds, by renovation agent
It is added, stirs about 1 minute；
4) the first layer concrete is poured, a layer concrete is poured in outer steel mould, exempts from its thickness greater than cast-in-place concrete
The thickness of form removal vibrates uniform (see Fig. 6 a)；
5) it is put into inner template, is slowly pushed into the interior punching block of bottom surface hole, so that the concrete after vibrating in step 4)
Gap between interior punching block and outer steel mould rises, and lower concrete thickness meets design requirement (see Fig. 6 b)；
6) the second layer concrete is poured, inside and outside punching block position is fixed, is poured in the gap between inside punching block and outer steel mould
One layer concrete simultaneously vibrates (see Fig. 6 c)；
7) third layer concrete is poured, step 6) is repeated, until the gap between interior punching block and outer steel mould is filled (see figure
6d)；
8) demoulding and maintenance cover straw bag or burlap in concrete surface, watering is protected after the concrete initial set of step 7)
Wet, curing in the mold at least 5 days, then demoulding continued moisture-keeping maintaining at least 25 days.
Specifically, the diameter of described hole is 20mm, spacing 40mm in step 1).
Specifically, the sodium metasilicate renovation agent is with epoxy resin and fine sand package sodium metasilicate particle in step 2
Made sheet renovation agent.The cement is PO42.5 class g cement.The fine aggregate is middle sand.The coarse aggregate is partial size
Continuous grading rubble within the scope of 5mm-10mm.The PVA fiber draws strong 1600MPa or more, length 6-12mm, initial modulus
35GPa.The flyash is I grade of flyash.The water-reducing agent is the polycarboxylate superplasticizer mother liquor of solid content 40%.
Embodiment three
A kind of preparation method of the cast-in-place concrete non-dismantling formwork with self-reparing capability, comprising steps of
1) interior punching block and outer steel mould are prepared according to the Sizing requirements of required cast-in-place concrete non-dismantling formwork, wherein institute
The bottom interval certain distance for stating interior punching block is evenly arranged with several holes, and interior punching block and outer steel mould sectional dimension difference are required existing
Pouring concrete non-dismantling formwork protective layer thickness, the cast-in-place concrete non-dismantling formwork cross sectional shape of the present embodiment be rectangle flute profile (see
Fig. 1 and Fig. 2), therefore, the cross sectional shape of interior punching block and outer steel mould is also rectangle flute profile (see Fig. 3 and Fig. 4)；
2) prepare concrete material, concrete material includes following substance by percentage to the quality: cement 17.85%, fine coal
Grey 4%, sodium metasilicate renovation agent 0.9%, fine aggregate 30.92%, coarse aggregate 39.35%, PVA fiber 0.09%, water-reducing agent 0.32%, mix
Water 6.57%；
3) prepared concrete material is mixed and stirred, after blender hanging, aggregate and PVA fiber is added, stirring
About 30 seconds；Then cement is added, stir about 30 seconds；Then water and water-reducing agent are added, stir about 1 divides 30 seconds, by renovation agent
It is added, stirs about 1 minute；
4) the first layer concrete is poured, a layer concrete is poured in outer steel mould, exempts from its thickness greater than cast-in-place concrete
The thickness of form removal vibrates uniform (see Fig. 6 a)；
5) it is put into inner template, is slowly pushed into the interior punching block of bottom surface hole, so that the concrete after vibrating in step 4)
Gap between interior punching block and outer steel mould rises, and lower concrete thickness meets design requirement (see Fig. 6 b)；
6) the second layer concrete is poured, inside and outside punching block position is fixed, is poured in the gap between inside punching block and outer steel mould
One layer concrete simultaneously vibrates (see Fig. 6 c)；
7) third layer concrete is poured, step 6) is repeated, until the gap between interior punching block and outer steel mould is filled (see figure
6d)；
8) demoulding and maintenance cover straw bag or burlap in concrete surface, watering is protected after the concrete initial set of step 7)
Wet, curing in the mold at least 5 days, then demoulding continued moisture-keeping maintaining at least 25 days.
Specifically, the diameter of described hole is 20mm, spacing 80mm in step 1).(see Fig. 5)
Specifically, the sodium metasilicate renovation agent is with epoxy resin and fine sand package sodium metasilicate particle in step 2
Made sheet renovation agent.The cement is PO42.5 class g cement.The fine aggregate is middle sand.The coarse aggregate is partial size
Continuous grading rubble within the scope of 5mm-10mm.The PVA fiber draws strong 1600MPa or more, length 6-12mm, initial modulus
35GPa.The flyash is I grade of flyash.The water-reducing agent is the polycarboxylate superplasticizer mother liquor of solid content 40%.
Example IV
A kind of preparation method of the cast-in-place concrete non-dismantling formwork with self-reparing capability, comprising steps of
1) interior punching block and outer steel mould are prepared according to the Sizing requirements of required cast-in-place concrete non-dismantling formwork, wherein institute
The bottom interval certain distance for stating interior punching block is evenly arranged with several holes, and interior punching block and outer steel mould sectional dimension difference are required existing
Pouring concrete non-dismantling formwork protective layer thickness, the cast-in-place concrete non-dismantling formwork cross sectional shape of the present embodiment be rectangle flute profile (see
Fig. 1 and Fig. 2), therefore, the cross sectional shape of interior punching block and outer steel mould is also rectangle flute profile (see Fig. 3 and Fig. 4)；
2) prepare concrete material, concrete material includes following substance by percentage to the quality: cement 18.55%, fine coal
Ash 3.3%%, sodium metasilicate renovation agent 1.05%, fine aggregate 30.8%, coarse aggregate 39.3%%, PVA fiber 0.11%, water-reducing agent 0.32%,
Mixing water 6.57%；
3) prepared concrete material is mixed and stirred, after blender hanging, aggregate and PVA fiber is added, stirring
About 30 seconds；Then cement is added, stir about 30 seconds；Then water and water-reducing agent are added, stir about 1 divides 30 seconds, by renovation agent
It is added, stirs about 1 minute；
4) the first layer concrete is poured, a layer concrete is poured in outer steel mould, exempts from its thickness greater than cast-in-place concrete
The thickness of form removal vibrates uniform (see Fig. 6 a)；
5) it is put into inner template, is slowly pushed into the interior punching block of bottom surface hole, so that the concrete after vibrating in step 4)
Gap between interior punching block and outer steel mould rises, and lower concrete thickness meets design requirement (see Fig. 6 b)；
6) the second layer concrete is poured, inside and outside punching block position is fixed, is poured in the gap between inside punching block and outer steel mould
One layer concrete simultaneously vibrates (see Fig. 6 c)；
7) third layer concrete is poured, step 6) is repeated, until the gap between interior punching block and outer steel mould is filled (see figure
6d)；
8) demoulding and maintenance cover straw bag or burlap in concrete surface, watering is protected after the concrete initial set of step 7)
Wet, curing in the mold at least 5 days, then demoulding continued moisture-keeping maintaining at least 25 days.
Specifically, the diameter of described hole is 20mm in step 1), spacing is 80mm (see Fig. 5).
Specifically, the sodium metasilicate renovation agent is with epoxy resin and fine sand package sodium metasilicate particle in step 2
Made sheet renovation agent.The cement is PO42.5 class g cement.The fine aggregate is middle sand.The coarse aggregate is partial size
Continuous grading rubble within the scope of 5mm-10mm.The PVA fiber draws strong 1600MPa or more, length 6-12mm, initial modulus
35GPa.The flyash is I grade of flyash.The water-reducing agent is the polycarboxylate superplasticizer mother liquor of solid content 40%.
In above-described embodiment, involved raw material are commercially available, involved concrete operations side
Method is known to those skilled in the art.
The above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be to the present invention
Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all of the invention
Made any modifications, equivalent replacements, and improvements etc., should be included in the protection of the claims in the present invention within spirit and principle
Within the scope of.
Claims (8)
1. a kind of preparation method of the cast-in-place concrete non-dismantling formwork with self-reparing capability, which is characterized in that comprising steps of
1) interior punching block and outer steel mould are prepared according to the Sizing requirements of required cast-in-place concrete non-dismantling formwork, wherein in described
The bottom interval certain distance of punching block is evenly arranged with several holes, and interior punching block and outer steel mould sectional dimension difference are required cast-in-place mixed
Solidifying soil non-dismantling formwork protective layer thickness；
2) prepare concrete material, concrete material includes following substance by percentage to the quality: cement 16.45%-18.55%,
Flyash 3.3%-5.5%, sodium metasilicate renovation agent 0.7%-1.05%, fine aggregate 30.8%-31%, coarse aggregate 39.3%-39.4%, PVA
Fiber 0.05%-0.11%, water-reducing agent 0.32%, mixing water 6.57%-6.58%, the sodium metasilicate renovation agent is to use epoxy resin
With sheet renovation agent made by fine sand package sodium metasilicate particle；
3) prepared concrete material is mixed and stirred；
4) the first layer concrete is poured, a layer concrete is poured in outer steel mould, so that its thickness is greater than cast-in-place concrete and exempts from demoulding
The thickness of plate vibrates uniformly；
5) it is put into inner template, is slowly pushed into the interior punching block of bottom surface hole, so that the concrete after vibrating in step 4) is in
Gap between punching block and outer steel mould rises, and lower concrete thickness meets design requirement；
6) the second layer concrete is poured, inside and outside punching block position is fixed, pours one layer in the gap between inside punching block and outer steel mould
Concrete simultaneously vibrates；
7) third layer concrete is poured, step 6) is repeated, until the gap between interior punching block and outer steel mould is filled；
8) demoulding and maintenance cover straw bag or burlap in concrete surface after the concrete initial set of step 7), moisturizing of sprinkling water,
Curing in the mold at least 5 days, then demoulding continued moisture-keeping maintaining at least 25 days.
2. the preparation method of the cast-in-place concrete non-dismantling formwork according to claim 1 with self-reparing capability, feature
Be: in step 1), the diameter of described hole is 20mm, spacing 80mm.
3. the preparation method of the cast-in-place concrete non-dismantling formwork according to claim 1 with self-reparing capability, feature
Be: in step 2, the cement is PO42.5 class g cement.
4. the preparation method of the cast-in-place concrete non-dismantling formwork according to claim 1 with self-reparing capability, feature
Be: in step 2, the fine aggregate is middle sand.
5. the preparation method of the cast-in-place concrete non-dismantling formwork according to claim 1 with self-reparing capability, feature
Be: in step 2, the coarse aggregate is continuous grading rubble of the partial size within the scope of 5mm-10mm.
6. the preparation method of the cast-in-place concrete non-dismantling formwork according to claim 1 with self-reparing capability, feature
Be: in step 2, the PVA fiber draws strong 1600MPa or more, length 6-12mm, initial modulus 35GPa.
7. the preparation method of the cast-in-place concrete non-dismantling formwork according to claim 1 with self-reparing capability, feature
Be: in step 2, the flyash is I grade of flyash.
8. the preparation method of the cast-in-place concrete non-dismantling formwork according to claim 1 with self-reparing capability, feature
Be: in step 2, the water-reducing agent is the polycarboxylate superplasticizer mother liquor of solid content 40%.
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| CN107856178B (en) * | 2017-11-10 | 2019-08-13 | 内蒙古工业大学 | The assembled freely-supported box girder construction and production method of PVA fiber cement composites |
| CN108149845A (en) * | 2018-02-26 | 2018-06-12 | 吉林建筑大学 | The extrusion forming of concrete column and beam exempts from form removal shell and its preparation method and application |
| CN108585674B (en) * | 2018-04-28 | 2021-05-14 | 华南理工大学 | Self-repairing concrete with enhanced repairing performance and preparation method thereof |
| CN108529951A (en) * | 2018-04-28 | 2018-09-14 | 华南理工大学 | A kind of enhancing cracking resistance self-repair concrete and preparation method thereof |
| CN108535459A (en) * | 2018-05-03 | 2018-09-14 | 华南理工大学 | A kind of crack resistance |
| CN108558253A (en) * | 2018-06-11 | 2018-09-21 | 华南理工大学 | A kind of self-repair concrete structure and preparation method thereof having self sensing capability |
| CN113681709A (en) * | 2021-06-16 | 2021-11-23 | 东南大学 | Preparation method of prefabricated foam fiber self-repairing concrete public pipeline cover plate |
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| CN201972394U (en) * | 2010-07-13 | 2011-09-14 | 陈校兴 | Disposable template for building |
| CN102720352A (en) * | 2012-05-21 | 2012-10-10 | 浙江大学 | Two-way keel embedded type assembled anti-cracking anti-seepage permanent formwork |
| CN102806592A (en) * | 2012-07-17 | 2012-12-05 | 河北工业大学 | Manufacturing method for demolition-free textile fiber web reinforced concrete formwork |
| CN102814861A (en) * | 2012-07-17 | 2012-12-12 | 河北工业大学 | Preparation method of reinforced concrete beam with demounting-free textile reinforced concrete (TRC) bottom mould |
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