CN203129467U - Stone composite decorative concrete structure - Google Patents
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- CN203129467U CN203129467U CN 201220385109 CN201220385109U CN203129467U CN 203129467 U CN203129467 U CN 203129467U CN 201220385109 CN201220385109 CN 201220385109 CN 201220385109 U CN201220385109 U CN 201220385109U CN 203129467 U CN203129467 U CN 203129467U
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Abstract
The utility model relates to a stone composite decorative concrete structure which has decorative effects and structural stress features. Concrete, a steel skeleton and decorative stone are fixed together in a one-time forming mode. The inner surface of the decorative stone is attached to the outer surface of the concrete. A groove is formed in the reverse side of the decorative stone, and the concrete is poured and filled in the groove in an integrated mode. The stone composite decorative concrete structure forms an overall structural system in civil and architectural engineering after pouring of the concrete. The stone composite decorative concrete structure is made of the concrete and the decorative stone through synchronous accurate design, and is simple in structure, low in cost, and strong in durability.
Description
Technical field
The utility model belongs to the civil construction project technical field, relates in particular to a kind of stone material composite decoration concrete structure.
Background technology
According to statistics, China building average life span only 30 years, and English architecture average life span 132 years, American Architecture average life span 74 years.China's building life is short, except historical reasons, reflects that also we are in the deficiency of aspects such as management, planning, idea, workmanship.Therefore, it is very urgent to improve the task of China's building life as early as possible.
On November 14th, 2007, [U.S.'s Business Week first phase on November 12 report] topic was reprinted by Reference News: China is energy-conservation in subtlety.Point out in the literary composition that " China is the second-biggest-in-the-world energy-consuming state that is only second to the U.S. now, but the energy efficiency of China is 1/5 of the U.S..Building has consumed 43% of energy source in China supply." illustrate that the work that China building energy conservation reduces discharging shoulders heavy responsibilities.
House in 2009 and town and country construction portion building energy conservation and science and technology department have sponsored the first " novel building structural system---energy-conservation and structure-integrated " technical seminar, meeting is intended to the scientific progress in the field of promoting, promote research, exploitation, the application work of new structure system, wish by energy-conservation and structure-integrated new structure system, seek the solution of significant problems such as structure durability is poor, building life is short.
The common way of building stone decoration curtain wall (as stone curtain wall etc.) is, after Structural Engineering is finished, at the fixing steel frame of concrete column or concrete wall, decorative stone is installed on the steel frame again.This mode need be installed steel frame, and consumptive material is many, cost is high, and complex procedures.On the other hand, oxidation and rusting easily takes place in the various metal connecting pieces that are used for connection concrete, steel frame and decorative panel in the existing building decorative curtain wall, thereby influences the application life of building, causes the durability of building relatively poor.In addition, meet or exceed service life of design when the service life of building, in the time of identifying external wall structure, need to remove decorative stone earlier and just can carry out, its operation is more time-consuming, if highrise building, the work high above the ground poor stability.
Civil engineering extensive use clear-water concretes such as present bridge engineering, urban interchange, clear-water concrete has features such as simple and unadorned, brief, its construction can be accomplished one-shot forming, not picking cutter repairs, do not plaster, reduce building waste, be conducive to environmental protection, but because defective and deficiencies such as clear-water concrete dull coloring, template seam have influenced applying in building construction.
The utility model has been used for reference construction method of fair-faced concrete, and speciality and advantage that it has kept clear-water concrete have remedied deficiency wherein again.Wish the original achievement by stone material composite decoration concrete structure and manufacture method thereof, providing new technical solution for prolonging the reduction of discharging of China's building life and building energy conservation, is that energy-conservation and structure-integrated new architecture and building science replenish a brand-new content.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of stone material composite decoration concrete simple in structure, that cost is lower and durability is strong to construct, and it has the characteristics of decorative effect and structure stress simultaneously.
For solving the problems of the technologies described above, the utility model provides a kind of stone material composite decoration concrete structure, the decorative stone that comprises concrete, is arranged in the steel frame of described concrete and is positioned at the described concrete outside, described concrete, steel frame and decorative stone one-shot forming are fixed together, the inner surface of described decorative stone is covered on described concrete external surface, the back side in described decorative stone is provided with groove, and described concrete one cast is filled in the described groove.
Further, described groove is dovetail groove, and on the thickness direction of described decorative stone, the bore of described slot opening end is less than the bore of its bottom.
Further, the described decorative stone back side is provided with several described grooves, and described groove is strip, perhaps rounded, the ellipse in described groove cross section or polygon, and be lattice-like and distribute.
Further, described groove is strip, and its cross section on the decorative cover bearing of trend of described decorative stone is rectangular, isosceles trapezoid or right-angled trapezium, and described groove is staggered.
Further, described groove is strip, and its cross section on the decorative cover bearing of trend of described decorative stone is isosceles trapezoid or right-angled trapezium, and described groove only extends setting along one of them direction.
Further, the edge of described decorative stone is provided with holddown groove, described concrete external surface fixedly has some described decorative stone, holddown groove on two adjacent decorative stone is adjacent and be oppositely arranged, two adjacent decorative stone and described steel frame link together by a fixture, one end of described fixture is fixed in the holddown groove of two adjacent decorative stone, and its other end build-in is in described concrete.
Further, described fixture comprises that horizontal build-in portion, fixed part and retaining put portion, described fixed part and retaining put that portion is vertical to be positioned in the described build-in portion, and each interval be arranged in parallel, described fixed position is in described holddown groove, and the described retaining portion of putting is positioned at the contiguous described concrete inboard of described decorative stone.
Further, described fixture build-in has be used to the connection assist that pre-fixes described decorative stone in a described concrete end, and described connection assist is connected between described fixture and the steel frame.
Further, described concrete external surface fixedly has some described decorative stone, has the slit between the two adjacent packaged decorations stone materials, is filled with the weather-resistant glue that seals in described slit.
Further, also be provided with the screen pack for filtered water or air salinity and harmful object in described slit, described screen pack is positioned at the inboard of described weather-resistant glue.
Compared with prior art; above-mentioned stone material composite decoration concrete is formed by concrete and the synchronously accurate design and construction of decorative stone; decorative stone can forever be combined closely with concrete by the groove design at its back side and is integral; form inseparable integral body; it avoids atmospheric corrosion with decorative stone protection concrete; concrete durability can be improved, and the building life-span can be prolonged.By accurate design and construction, decorate the manufacturing process synchronous with structure, can obtain the overall structure system finished product of civil construction project through one-shot forming.Adopt stone material composite decoration concrete can reach identical purpose, or realize same architectural effect, can directly reduce material consumption (as steel frame etc.) and labour cost, reduction of erection time, reducing the construction costs and maintenance cost, saving space low-carbon environment-friendly.When the actual useful year of building meets or exceeds design life, relatively simple to the concrete evaluation of composite decoration, need not to remove decorative stone, can directly identify.Above-mentioned job practices has continued the characteristics of clear-water concrete, construction can accomplish one-shot forming, do not pick cutter repairs, does not plaster, reduces building waste, is conducive to environmental protection etc., this composite decoration concrete has the feature of decorative effect and structure stress simultaneously, architectural culture and structure are combined together, for civil construction project provides a kind of economic, practical, corrosion resistant advanced composite material (ACM), for raising concrete structure durability, prolongation object of construction production life-span provide new technical scheme.In addition, for the concrete blinding that contacts with decorative panel in the work progress, because it does not contact concrete, therefore reusable, utilization rate is higher, need not often to polish concrete blinding, and this has reduced construction cost, reduction of erection time from another angle.
Description of drawings
Fig. 1 is the cross-sectional schematic of the utility model stone material composite decoration concrete one preferred embodiment.
Fig. 2 is the floor map of a kind of embodiment of decorative stone in the utility model.
Fig. 3 is the floor map of the another kind of embodiment of decorative stone in the utility model.
Fig. 4 is the floor map of another embodiment of decorative stone in the utility model.
Fig. 5 is the cross-sectional schematic of the utility model stone material composite decoration concrete when being used for the cylinder construction.
The specific embodiment
In order to make technical problem to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also Fig. 1, stone material composite decoration concrete of the present utility model is a kind of advanced composite material (ACM) that has decorative effect and structure feature simultaneously, be used for the building and civil engineering structures system, the decorative stone 3 that it comprises concrete 1, is arranged in the steel frame 2 of concrete 1 and is positioned at concrete 1 outside.Concrete 1, steel frame 2 and decorative stone 3 one-shot formings are fixed together, and the inner surface of decorative stone 3 is covered on the external surface of concrete 1.Be provided with groove 31 in the back side of decorative stone 3, the cast of concrete 1 one is filled in the groove 31, and behind concreting 1, this stone material composite decoration concrete constitutes the overall structure system in the civil construction project.
Above-mentioned civil construction project comprises building construction, and object of construction production such as road, bridge, dam, harbour, railway or mine.Above-mentioned overall structure system comprises structure stress systems such as post, wall, beam, plate, and structural system mainly is suitable for exterior wall, also can apply to indoorly, and it can be plane structure or curved-surface structure.
Above-mentioned concrete 1 refers to be arranged in pairs or groups according to a certain percentage by cement, sand, stone, water, additive etc., through mechanical agitation, at the appointed time the casting, vibration compacting, and through maintenance and the solid of moulding, they are except the general characteristics that keep clear-water concrete, more need to pay attention to and strengthen concrete flowability to reach from close property, to guarantee concrete pouring quality.Above-mentioned concrete 1 comprises ordinary concrete, light weight concrete construction, high-strength concrete, from close property concrete, waterproof concrete, fire prevention concrete, thermal insulation concrete.Means such as existing commercial concrete, pumping of concrete, concrete distributing equipment, Admixture are for realizing the concrete good fluidity and providing technical support and possibility from close property.
Above-mentioned steel frame 2 comprises ferrous metal and non-ferrous metal, and wherein, ferrous metal is carbon steel, alloy steel, ordinary steel, high-quality steel, senior high-quality steel, reinforcing bar, shaped steel or steel pipe.
Above-mentioned decorative stone 3 has decorative effect, also has intensity, durability, anti-aging, anticorrosion simultaneously, can process, characteristic such as chip resistant.The thickness of decorative stone 3 can be determined according to concrete conditions such as material behavior, regional temperature and designing materials, generally between the 20-100 millimeter.The shape of decorative stone 3 can be plane, curved surface or solid.
Particularly, groove 31 is dovetail groove, and on the thickness direction of decorative stone 3, the bore of groove 31 openends is less than the bore of its bottom, thereby after can guaranteeing fluid concrete, decorative stone 3 can't come off from groove 31.To shown in Figure 4, the groove 31 at decorative stone 3 back sides can arrange several as Fig. 2.In the embodiment shown in Figure 2, groove 31 is strip, and its cross section on the decorative cover bearing of trend of decorative stone 3 is rectangular, and criss-cross arrangement.In the embodiment shown in Figure 3, groove is strip, and its cross section on decorative stone 3 decorative cover bearing of trends is isosceles trapezoid (as the groove 31a among Fig. 3) or right-angled trapezium (as the groove 31b among Fig. 3), and groove is staggered.Groove also can only extend setting along one of them direction, for example only longitudinally or the horizontal expansion setting, when groove only extends longitudinally when arranging, need to guarantee that the less end of slot opening size is positioned at the top, the end that opening size is bigger is positioned at the below, like this, and after concrete is poured into a mould in the groove, decorative stone 3 can hang on the concrete, and can not drop.In the embodiment shown in Figure 4, groove cross section rounded (as the groove 31c among Fig. 4), square (as the groove 31d among Fig. 4) or rectangle (as the groove 31e among Fig. 4), and be lattice-like and distribute, certainly, the cross sectional shape of groove 31 can also be different shapes such as oval or other polygons.
In the present embodiment, fixedly there are some decorative stone 3 on concrete 1 surface, and 2 of adjacent decorative stone 3 and reinforcing bars link together by fixture 4.It is adjacent and be oppositely arranged that the edge of decorative stone 3 is provided with holddown groove 32 on 32, two adjacent decorative stone 3 of holddown groove.One end of fixture 4 is fixed in the holddown groove 32 of two adjacent decorative stone 3, and its other end build-in is in concrete 1.The material of fixture 4 can be metal, plastics, timber or carbon fiber material.In the present embodiment, fixture 4 comprises horizontal build-in portion 41, fixed part 42 and keeps off and put portion 43 that fixed part 42 is put portion's 43 vertical being positioned in the build-in portion 41 with retaining, and each interval be arranged in parallel, fixed part 42 is arranged in holddown groove 32, and retaining is put the inboard that portion 43 is positioned at decorative stone 3 contiguous concrete 1., its build-in has be used to the connection assist 5 that pre-fixes decorative stone 3 in an end of concrete 1, and connection assist 5 is connected between fixture 4 and the steel frame 2.Particularly, connection assist 5 is wires, and fixture 4 build-ins are provided with the perforation (not shown) in an end of concrete 1, and connection assist 5 is arranged in the perforation and is fastened on steel frame 2.Above-mentioned fixing piece can also adopt other form of structure, is fixed in the holddown groove 32 of two adjacent decorative stone 3 as long as can guarantee the one end, and other end build-in gets final product in concrete 1, and for example the shape of cross section of fixture is "T"-shaped.
Have slit (not indicating among the figure) between the adjacent decorative stone 3, for preventing the life-span of external environment influence fixture 4 and concrete 1, be filled with the weather-resistant glue 6 that seals in the slit between adjacent decorative stone 3.For the building in the water or in the wet environment, in the slit, also further be provided with the chemical fibre screen pack 7 for filtered water or air salinity and harmful object, screen pack 7 is positioned at the inboard of weather-resistant glue 6, also can advance one one and be positioned at fixed part 42 and retaining is put between the portion 43.
Below describe the concrete manufacture method of above-mentioned stone material composite decoration in detail.This manufacture method is used for building and civil engineering structures system job site to be made, and mainly may further comprise the steps:
A. install steel frame 2;
B. decorative stone 3 is pre-fixed in steel frame 2 outsides, the back side of decorative stone 3 has groove 31;
C. the concrete blinding (not shown) is installed in the outside of steel frame 2 and decorative stone 3, makes decorative stone 3 external surfaces be covered on the medial surface of concrete blinding;
D. placing of concrete 1 in the concrete blinding makes concrete 1 be filled in the space in the concrete blinding and in the groove 31 at decorative stone 3 back sides;
E. after treating that concrete 1 solidifies, the dismantling concrete template, this stone material composite decoration concrete constitutes the overall structure system in the civil construction project.
In above-mentioned steps b, be provided with holddown groove 32 in the edge of decorative stone 3, when decorative stone 3 is installed, make holddown groove 32 on the adjacent decorative stone 3 adjacent and be oppositely arranged, by a fixture 4 adjacent decorative stone 3 is pre-fixed in steel frame 2 outsides, fixture 4 one ends are fixed in the holddown groove 32 of adjacent decorative stone 3, and its other end is fixed on the steel frame 2.In the present embodiment, fixture 4 is fixed on the steel frame 2 by a connection assist 5, offers perforation on the fixture 4, and connection assist 5 passes perforation and is fastened on steel frame 2.
Above-mentioned manufacture method also comprises step f: fill the weather-resistant glue 6 that seals in the slit between adjacent decorative stone 3.Step f can finish between step b and step c, namely before annotating concrete 1, pre-fixes synchronous realization with decorative stone 3, also can be after finishing concrete cast dismantling concrete template, and secondary is filled in the slit, namely is positioned at after the step e.
In addition, for the building in the water or in the wet environment, before the step of above-mentioned filling weather-resistant glue 6, can further be provided for the screen pack 7 of salinity in filtered water or the air in the slit between adjacent decorative stone 3, make screen pack 7 be positioned at the inboard of weather-resistant glue 6.
Fig. 5 is the structural representation when using said method and carrying out the cylinder construction.Can adopt that the fixing means of template fixes concrete blinding in the concrete construction.Among the embodiment shown in Figure 4, concrete blinding 120 is fixed by flitch 140, angle steel 150 and pull bar 160.Gap between post, bay window and the concrete blinding 120 can be filled by temporary formwork 170.
Above-mentioned stone material composite decoration concrete is formed by concrete 1 and decorative stone 3 synchronously accurate design and constructions; decorative stone 3 can forever be combined closely with concrete 1 by groove 31 designs at its back side and is integral; form inseparable integral body; avoid atmospheric corrosion with decorative stone 3 protection concrete 1; concrete 1 durability can be improved, and the building life-span can be prolonged.By accurate design and construction, decorate the manufacturing process synchronous with structure, can obtain the overall structure system finished product of civil construction project through one-shot forming.Adopt stone material composite decoration concrete can reach identical purpose, or realize same architectural effect, can directly reduce material consumption (as steel frame etc.) and labour cost, reduction of erection time, reducing the construction costs and maintenance cost, saving space low-carbon environment-friendly.When the actual useful year of building meets or exceeds design life, relatively simple to the concrete evaluation of stone material composite decoration, need not to remove decorative stone 3, can directly identify.Above-mentioned job practices has continued the characteristics of clear-water concrete, construction can accomplish one-shot forming, do not pick cutter repairs, does not plaster, reduces building waste, is conducive to environmental protection etc., this stone material composite decoration concrete has the feature of decorative effect and structure stress simultaneously, architectural culture and structure are combined together, for civil construction project provides a kind of economic, practical, corrosion resistant advanced composite material (ACM), for raising concrete 1 structure durability, prolongation object of construction production life-span provide new technical scheme.In addition, for the concrete blinding that contacts with decorative stone 3 in the work progress, because it does not contact concrete 1, therefore reusable, utilization rate is higher, need not often to polish concrete blinding, and this has reduced construction cost, reduction of erection time from another angle.
Stone material composite decoration concrete of the present utility model mainly is applicable to the building and civil engineering structures system, and claimed structure is made synchronously with decoration, can obtain the overall structure system finished product of civil construction project through one-shot forming.
In the practical application, required to choose the kind of decorative stone 3 by designer or owner's foundation, color, size, thickness etc., deepen design by contractor again and (comprise decorative stone 3 layouts, the parting size, contents such as piece scheme, be similar to present steel work, curtain wall engineering, the in-depth design work of engineerings such as intellectuality), made according to the in-depth plan by factory afterwards, processing, making and mismachining tolerance to decorative stone 3 are controlled in millimeter, contractor can adopt above-mentioned technology of the present utility model, by the modern precision instrument, large-scale construction equipment, well-organized, well construction, guarantee that effect meets design requirement, workmanship meets or exceeds the national acceptance standard, according to decorating the principle synchronous with structure, decorative stone 3 and concrete blinding are installed simultaneously, needed to guarantee the installation accuracy of decorative stone 3 simultaneously, concrete blinding need guarantee the rigidity of decorative stone 3, treat that concrete 1 pouring finishes, namely form the composite decoration concrete.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a stone material composite decoration concrete is constructed, the decorative stone that comprises concrete, is arranged in the steel frame of described concrete and is positioned at the described concrete outside, it is characterized in that, described concrete, steel frame and decorative stone one-shot forming are fixed together, the inner surface of described decorative stone is covered on described concrete external surface, the back side in described decorative stone is provided with groove, and described concrete one cast is filled in the described groove.
2. stone material composite decoration concrete structure as claimed in claim 1 is characterized in that described groove is dovetail groove, and on the thickness direction of described decorative stone, the bore of described slot opening end is less than the bore of its bottom.
3. stone material composite decoration concrete as claimed in claim 1 or 2 is constructed, it is characterized in that the described decorative stone back side is provided with several described grooves, described groove is strip, perhaps rounded, the ellipse in described groove cross section or polygon, and be lattice-like and distribute.
4. stone material composite decoration concrete as claimed in claim 3 structure is characterized in that described groove is strip, and its cross section on the decorative cover bearing of trend of described decorative stone is rectangular, isosceles trapezoid or right-angled trapezium, and described groove is staggered.
5. stone material composite decoration concrete as claimed in claim 4 is constructed, it is characterized in that, described groove is strip, and its cross section on the decorative cover bearing of trend of described decorative stone is isosceles trapezoid or right-angled trapezium, and described groove only extends setting along one of them direction.
6. stone material composite decoration concrete as claimed in claim 1 is constructed, it is characterized in that, the edge of described decorative stone is provided with holddown groove, described concrete external surface fixedly has some described decorative stone, holddown groove on two adjacent decorative stone is adjacent and be oppositely arranged, two adjacent decorative stone and described steel frame link together by a fixture, and an end of described fixture is fixed in the holddown groove of two adjacent decorative stone, and its other end build-in is in described concrete.
7. stone material composite decoration concrete as claimed in claim 6 is constructed, it is characterized in that, described fixture comprises that horizontal build-in portion, fixed part and retaining put portion, described fixed part and retaining put that portion is vertical to be positioned in the described build-in portion, and each interval be arranged in parallel, described fixed position is in described holddown groove, and the described retaining portion of putting is positioned at the contiguous described concrete inboard of described decorative stone.
8. stone material composite decoration concrete as claimed in claim 6 is constructed, it is characterized in that, described fixture build-in has be used to the connection assist that pre-fixes described decorative stone in a described concrete end, and described connection assist is connected between described fixture and the steel frame.
9. stone material composite decoration concrete as claimed in claim 1 is constructed, it is characterized in that, described concrete external surface fixedly has some described decorative stone, has the slit between the two adjacent packaged decorations stone materials, is filled with the weather-resistant glue that seals in described slit.
10. stone material composite decoration concrete structure as claimed in claim 9 is characterized in that also be provided with the screen pack for filtered water or air salinity and harmful object in described slit, described screen pack is positioned at the inboard of described weather-resistant glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201220385109 CN203129467U (en) | 2012-06-09 | 2012-07-28 | Stone composite decorative concrete structure |
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| CN201210202533.9 | 2012-06-09 | ||
| CN201210202533 | 2012-06-09 | ||
| CN 201220385109 CN203129467U (en) | 2012-06-09 | 2012-07-28 | Stone composite decorative concrete structure |
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| CN2012102796064A Pending CN102808494A (en) | 2012-06-09 | 2012-07-28 | Compound stone decorative concrete structure and manufacture method thereof |
| CN 201220385109 Expired - Lifetime CN203129467U (en) | 2012-06-09 | 2012-07-28 | Stone composite decorative concrete structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102808494A (en) * | 2012-06-09 | 2012-12-05 | 饶淳 | Compound stone decorative concrete structure and manufacture method thereof |
| CN108254267A (en) * | 2018-04-23 | 2018-07-06 | 深圳市仟亿建筑技术有限公司 | There are skin anti-shear concrete strength test test specimen, testing equipment and test method |
| CN108656341A (en) * | 2017-12-29 | 2018-10-16 | 上海大禺预制构件有限公司 | A kind of prefabricated exterior wall and preparation method thereof |
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| CN103321380A (en) * | 2013-06-21 | 2013-09-25 | 江苏华顶建设工程股份有限公司 | Construction method for mounting stone decorative panels |
| CN104863330A (en) * | 2015-03-24 | 2015-08-26 | 饶淳 | Stone or metal veneer big board or composite big board, and preparation method |
| CN112936576A (en) * | 2021-02-23 | 2021-06-11 | 中清大科技股份有限公司 | Production method of thermal insulation external wall panel |
| CN114776132A (en) * | 2022-04-20 | 2022-07-22 | 中建八局第三建设有限公司 | T-shaped steel plate drawknot city wall construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061791A (en) * | 2010-08-12 | 2011-05-18 | 周嘉陵 | Compounding architectural concrete and processing method |
| CN102808494A (en) * | 2012-06-09 | 2012-12-05 | 饶淳 | Compound stone decorative concrete structure and manufacture method thereof |
-
2012
- 2012-07-28 CN CN2012102796064A patent/CN102808494A/en active Pending
- 2012-07-28 CN CN 201220385109 patent/CN203129467U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808494A (en) * | 2012-06-09 | 2012-12-05 | 饶淳 | Compound stone decorative concrete structure and manufacture method thereof |
| CN108656341A (en) * | 2017-12-29 | 2018-10-16 | 上海大禺预制构件有限公司 | A kind of prefabricated exterior wall and preparation method thereof |
| CN108254267A (en) * | 2018-04-23 | 2018-07-06 | 深圳市仟亿建筑技术有限公司 | There are skin anti-shear concrete strength test test specimen, testing equipment and test method |
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| Publication number | Publication date |
|---|---|
| CN102808494A (en) | 2012-12-05 |
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