CN107142807A - A kind of low temperature resistant fast spreading road - Google Patents
A kind of low temperature resistant fast spreading road Download PDFInfo
- Publication number
- CN107142807A CN107142807A CN201710360385.6A CN201710360385A CN107142807A CN 107142807 A CN107142807 A CN 107142807A CN 201710360385 A CN201710360385 A CN 201710360385A CN 107142807 A CN107142807 A CN 107142807A
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- CN
- China
- Prior art keywords
- parts
- prefabricated board
- low temperature
- shearing resistance
- temperature resistant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/06—Pavings made of prefabricated single units made of units with cement or like binders
- E01C5/08—Reinforced units with steel frames
- E01C5/10—Prestressed reinforced units ; Prestressed coverings from reinforced or non-reinforced units
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/005—Individual couplings or spacer elements for joining the prefabricated units
- E01C5/006—Individual spacer elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C2201/00—Paving elements
- E01C2201/16—Elements joined together
- E01C2201/167—Elements joined together by reinforcement or mesh
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention discloses a kind of low temperature resistant fast spreading road, it is characterized in that including, four prefabricated boards, the both sides of described prefabricated board are provided with the hole for placing steel strand wires, connected between adjacent prefabricated board by steel strand wires, rubber layer is installed, the formula of described rubber layer is calculated by weight between adjacent prefabricated board：60 parts of EP rubbers, 35 parts of butadiene-styrene rubber, 10 parts of silicon rubber, 7 parts of polyorganometallosiloxane, 5 parts of alkoxy end-capped polysiloxanes, viscous 1 part of base carbon fibre, 15 parts of carbon black (N220), 40 parts of chlorobutadiene, BPP11 parts of BPP, 2 parts of dioctyl phthalate.
Description
The application is the patent No. 201510486778.2, and the applying date is August in 2015 11, entitled " a kind of resistance to
The divisional application of low temperature city fast spreading road ".
Technical field
The present invention relates to a kind of low temperature resistant fast spreading road.
Background technology
China's economy is currently under high-speed development period, the annual road for building a large amount of various grades, wherein very big one
It is concrete road to divide.Country's concrete road mainly uses cast-in-place concrete construction technique, it is necessary to which live formwork supporting plate, is tied up at present
Wire-tie, casting concrete, the work progress such as concrete curing.It is mainly as follows to there is drawback in cast-in-place concrete production technology：
Low production efficiency, expends substantial amounts of human resources, long construction period.Site operation mainly uses manual work, product matter
Amount is difficult to ensure.Big for environment pollution, poured in place concrete produces noise, sewage, the environmental pollution such as waste material.Road surface remove or
When discarded, ground surface material formation building waste, it is impossible to reuse, cause the wasting of resources.Climate influence of constructing is big.Rainy season and
Cold season unfavorable construction, causes the seasonal downtime longer.Therefore, the disadvantage mentioned above of cast-in-place concrete road, it has also become system
The about bottleneck of concrete road industrialization development.
And precast concrete road has the advantage that：
1）Production efficiency is high, saves human resources, is advantageously implemented road engineering industrialization.Precast concrete road is in factory's machine
Tool metaplasia produces component, and site machineryization is installed, production efficiency production artificial far above scene, change builder into industrial worker,
Lift industry industrialization level.
2）Construction period is short, reduces Climatic risk.Precast concrete road in-site installation weatherproof, winter still may be used
Construction, and without concrete curing, the road construction cycle is substantially reduced, reduce because of the economic loss that climate change is brought.
3）Meet civilized construction and environmental requirement.Precast concrete road in-site installation is noiseless, sewage, airborne dust, can protect
The good operating environment in job site is held, it is small to surrounding environment influence.
4）Good product quality.Precast concrete road product is factory's shaping standard metaplasia production, realizes Specialty Design, makes
Make, the cast-in-place concrete road than making in product quality and security performance is more guaranteed.
5）Resource utilization is high, is conducive to social sustainable development.Precast concrete road, which can be realized, disassembles reuse,
When road needs to remove or moved, concrete pavement slab can disassemble resettlement and reuse.And concrete dirt road
Industrial waste and circular regeneration material, to economizing on resources, energy-saving and emission-reduction meaning weight can be largely used in the process of factory production of road
Greatly, social sustainable development is conducive to.
It is contemplated that：Industrialized level is higher, the precast concrete road of better quality by be road engineering development side
To.Promoting the use of to lifting road engineering industry level for precast concrete road, reduces construction cost, accelerates construction week
Phase, reducing Construction on Environment influence all has positive role.
The content of the invention
Quickly spread the invention provides a kind of low temperature resistant city in view of the above-mentioned problems of the prior art, the present invention is provided
Fill road.The road includes concrete pavement slab, and road deck is prefabricated in processing factory, is transported to job site positioning assembly,
Road deck physical dimension, resistance to low temperature is good.
To achieve these goals, the technical solution adopted by the present invention is：A kind of low temperature resistant urban express way, including,
Four prefabricated boards, the both sides of described prefabricated board, which are provided between the hole for placing steel strand wires, adjacent prefabricated board, to be passed through
Steel strand wires are connected;The a diameter of 15.50mm of steel hinge line,
Four sides of described prefabricated board are respectively provided between the hole with placement steel strand wires, adjacent prefabricated board to be connected by steel strand wires
Connect;
Four prefabricated boards using steel hinge line and constitute a road surface unit by steel connecting plate band on the outside of prefabricated board;
Prefabricated board between adjacent is also equipped with connecting bond structure, and described connection bond structure includes the convex key of shearing resistance cooperated
With the recessed key of shearing resistance,
The convex key of described shearing resistance, which is one, has the pedestal of the raised conical surface；The recessed key of described shearing resistance, which is one, has the depression conical surface
Pedestal, the raised conical surface can be provided with rubber layer between adjacent prefabricated board with depression cone match.
Two medial extremitys of described prefabricated board are mounted on the convex key of shearing resistance, and the side for corresponding prefabricated board is provided with
The recessed key of shearing resistance.
The convex key of described shearing resistance and the recessed key of shearing resistance are embedded into prefabricated board side respectively, and are welded with anchor rib.
One block of rubber slab is set between described steel connecting plate band and prefabricated board plate contact surface.
The formula of described rubber layer is according to Mass Calculation：
60 parts of EP rubbers, 35 parts of butadiene-styrene rubber, 10 parts of silicon rubber, 7 parts of polyorganometallosiloxane, alkoxy end-capped poly- silica
5 parts of alkane, viscous 1 part of base carbon fibre, 15 parts of carbon black (N220), 40 parts of chlorobutadiene, BPP11 parts of BPP, adjacent benzene
2 parts of diformazan dioctyl phthalate.
The beneficial aspects of the present invention：
The road includes concrete pavement slab, and road deck is prefabricated in processing factory, is transported to job site positioning assembled.Road surface
Slab geomitry size, is determined according to the number of track-lines and design grade of design requirement.
For road surface plate convenient transportation, quick for installation, plate is divided into multiple by the ratio according to road deck short side and long side
Species and model.
To ensure that fracture, breakage, the linkage interface between plate and plate do not occur under heavy-duty vehicle repeated action for road deck
Place, there is provided some anti-shearing connecting keys of positioning.
To give full play to the bearing capacity of every block of plate, the present invention uses soap-free emulsion polymeization post-tensioned prestressing steel hinge line, and passes through plate
Outside steel connecting plate band, an organic whole is connected into by adjacent four blocks of plates.
Under buffering heavy-duty vehicle repeated action, rubber layer to be provided between adjacent prefabricated board, formation is flexible coupling so that
Cross force reduction between prefabricated board, using special rubber formulation, the rubber made has preferable cryogenic property, and
And the higher hardness of holding is simultaneously, additionally it is possible to which low temperature resistant, brittleness temperature is maintained in relatively low temperature.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is Fig. 1 sectional views.
Fig. 3 is connecting key structural representation.
1st, prefabricated board, 2, steel strand wires, 3, steel connecting plate band, 4, stretching end anchorage, 5, fixing end anchorage, 6, hole, 7, even
Connect bond structure, 8, anchor rib, 71, the convex key of shearing resistance, 72, the recessed key of shearing resistance.
Embodiment
1 the invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of low temperature resistant fast spreading road, the road surface unit laying for having multiple arrangements is formed, Mei Gelu
Face unit includes 4 pieces of prefabricated boards 1, and the both sides of described prefabricated board 1 are provided with the hole 6 for placing steel strand wires 2, and adjacent is pre-
Connected between making sheet 1 by steel strand wires.In order to preferably increase intensity, four sides of prefabricated board are respectively provided with placement steel strand wires
Connected between hole, adjacent prefabricated board by steel strand wires 2, there are 3 to 4 steel strand wires companies result in formation of each piece of prefabricated board
Connect, enhance road surface unit resistance to overturning,
During processing factory's prefabricated board, spiral shell is buried at the concrete pressure-bearing position being in contact in steel connecting plate band 3 with concrete slab respectively
One of shape stirrup and the road of reinforcing bar weld tabs three are revolved, to strengthen concrete Local bearing capacity.Prefabricated board is prefabricated in processing factory, is transported to construction
Scene positioning is assembled.Prefabricated board physical dimension, is determined according to the number of track-lines and design grade of design requirement.To design grade compared with
High concrete road surface, should combine local engineering geology and water wave related data before laying, according to relevant test stone, specification,
Design document requirement whether is met to its roadbed to be checked and checked and accepted.
Prefabricated board is made using armored concrete, and template can use set shaped steel formwork, and reserving hole channel is should be noted during making, is resisted
Cut pre-buried key and inspection shaft openings position and size is accurate.Prefabricated board is divided into multiple models, so as to scale standardized production.Foundation
Prefabricated board short side and the lenth ratio on long side are divided into multiple species（Such as：A, B, C class）, each species is long according to prefabricated board short side
Degree is divided into multiple models（Such as：A2000, B2250, C2500 model）；According to highway layout width, matching somebody with somebody for different model is selected
Cover product and carry out assembly.
Prefabricated board between adjacent is also equipped with connecting bond structure 7, and described connection bond structure 7 includes the anti-of mutual cooperation
Cut convex key 71 and the recessed key 72 of shearing resistance.Connection bond structure 7 has several, uniform arrangement be arranged on two adjacent prefabricated boards 1 it
Between,
Two medial extremitys of described prefabricated board are mounted on the convex key of shearing resistance, and the side for corresponding prefabricated board is provided with shearing resistance
Recessed key.
This cone structure show that its shearing stress effect is especially good through overtesting,
The convex key of described shearing resistance and the recessed key of shearing resistance are embedded into prefabricated board side respectively, and are welded with anchor rib, firmly and pacify
Dress is convenient.
One block of rubber slab is set between described steel connecting plate band 3 and the contact surface of prefabricated board plate 1.Prevention is applied to steel hinge line
Plus during stress, cause road deck outer surface to produce local damage.
The a diameter of 15.50mm of steel hinge line, steel hinge line standard pull tension intensity level is 1860N/mm2, by two ends anchorage by steel
Hinge line is anchored in the outside of steel connecting plate band.
The method for stretching of presstressed reinforcing steel：, should be using steel of two tensioning equipments to the end of same plate two in stretching process
Twisted wire carries out tensioning simultaneously.After tensioning is finished, the steel hinge line outside exposure, anchorage are wrapped up with butter, plastic foil in time
Preservative treatment
The convex key of described shearing resistance, which is one, has the pedestal of the raised conical surface；The recessed key of described shearing resistance, which is one, has the depression conical surface
Pedestal, the raised conical surface can be with depression cone match.
Between steel connecting plate band 3 and road deck contact surface, the thick rubber slabs of one piece of 5mm are set, prevention applies to steel hinge line
During stress, road deck outer surface is caused to produce local damage.
The material of above-mentioned rubber layer, be calculated by weight to 60 parts of EP rubbers, 35 parts of butadiene-styrene rubber, 10 parts of silicon rubber,
7 parts of polyorganometallosiloxane, 5 parts of alkoxy end-capped polysiloxanes, viscous 1 part of base carbon fibre, 15 parts of carbon black (N220), neoprene two
40 parts of alkene, BPP11 parts of BPP, 2 parts of dioctyl phthalate, with preferable low temperature resistivity, in low temperature
Under environment, deformation rate is low.
Embodiment 1：60 parts of EP rubbers, 35 parts of butadiene-styrene rubber, 10 parts of silicon rubber, 7 parts of polyorganometallosiloxane, alcoxyl
5 parts of base terminated polysiloxane, viscous 1 part of base carbon fibre, 15 parts of carbon black (N220), 40 parts of chlorobutadiene, BPP
BPP11 parts, 2 parts of dioctyl phthalate.
Comparative example 1：60 parts of EP rubbers, 35 parts of butadiene-styrene rubber, 10 parts of silicon rubber, 15 parts of carbon black (N220).
Comparative example 2：80 parts of EP rubbers, 10 parts of silicon rubber, 7 parts of polyorganometallosiloxane, alkoxy end-capped poly- silica
5 parts of alkane, viscous 2 parts of base carbon fibre, 15 parts of carbon black (N220).
Comparative example 3：30 parts of natural rubber, 20 parts of ethylene propylene diene rubber, 8 parts of thermoplastic styrene butadiene rubber, 1 part of stearic acid, friendship
Join 3 parts of agent, 15 parts of white carbon, 20 parts of filler, 0.5 part of antioxidant.
Comparative example 4：35 parts of butadiene-styrene rubber, 10 parts of silicon rubber, 17 parts of polyorganometallosiloxane, alkoxy end-capped poly- silica
25 parts of alkane, viscous 1 part of base carbon fibre, 15 parts of carbon black (N220), 20 parts of chlorobutadiene, BPP4 parts of BPP, adjacent benzene
2 parts of diformazan dioctyl phthalate.
Ratio is assembled according to above-mentioned five, elastomeric material is prepared respectively, hardness is tested by GB/T531-1999;Tensile property is pressed
GB/T528-1998 is tested;Compression set is tested by GB/T531-1999;Brittleness temperature is tested by GB/T1682-1994.
Test effect as follows：
| Shore a hardness | Compression set % | Brittleness temperature DEG C | |
| Embodiment | 88 | 7 | -51 |
| Comparative example 1 | 80 | 12 | -32 |
| Comparative example 2 | 86 | 24 | -36 |
| Comparative example 3 | 89 | 19 | -39 |
| Comparative example 4 | 83 | 27 | -41 |
Above-mentioned result of the test shows, embodiment has a preferable low-temperature resistance effect relative to comparative example 1-4, and deformation rate compared with
It is low.
Claims (5)
1. a kind of low temperature resistant fast spreading road, it is characterised in that including, four prefabricated boards, the both sides of described prefabricated board are all provided with
It is equipped between the hole for placing steel strand wires, adjacent prefabricated board and is connected by steel strand wires, is provided between adjacent prefabricated board
Rubber layer, the formula of described rubber layer is calculated by weight to：60 parts of EP rubbers, 35 parts of butadiene-styrene rubber, 10 parts of silicon rubber,
7 parts of polyorganometallosiloxane, 5 parts of alkoxy end-capped polysiloxanes, viscous 1 part of base carbon fibre, 15 parts of carbon black (N220), neoprene two
40 parts of alkene, BPP11 parts of BPP, 2 parts of dioctyl phthalate.
2. a kind of low temperature resistant fast spreading road according to claim 1, it is characterised in that two of described prefabricated board
Medial extremity is mounted on the convex key of shearing resistance, and the side for corresponding prefabricated board is provided with the recessed key of shearing resistance.
3. a kind of low temperature resistant fast spreading road according to claim 1, it is characterised in that the convex key of described shearing resistance and anti-
Cut recessed key to be embedded into respectively in prefabricated board side, and welded with anchor rib.
4. a kind of low temperature resistant fast spreading road according to claim 1, it is characterised in that described steel connecting plate band
One block of rubber slab is set between prefabricated board plate contact surface.
5. a kind of low temperature resistant fast spreading road according to claim 1, it is characterised in that steel hinge line is a diameter of
15.50mm, four sides of described prefabricated board are respectively provided between the hole with placement steel strand wires, adjacent prefabricated board to be twisted by steel
Line is connected;Four prefabricated boards using steel hinge line and constitute a road surface unit by steel connecting plate band on the outside of prefabricated board;Phase
Prefabricated board between neighbour is also equipped with connecting bond structure, and described connection bond structure includes the convex key of shearing resistance and the shearing resistance cooperated
Recessed key, the convex key of described shearing resistance, which is one, has the pedestal of the raised conical surface；The recessed key of described shearing resistance, which is one, has the depression conical surface
Pedestal, the raised conical surface can with depression cone match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710360385.6A CN107142807A (en) | 2015-08-11 | 2015-08-11 | A kind of low temperature resistant fast spreading road |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710360385.6A CN107142807A (en) | 2015-08-11 | 2015-08-11 | A kind of low temperature resistant fast spreading road |
| CN201510487269.1A CN105064161B (en) | 2015-08-11 | 2015-08-11 | A kind of low temperature resistant city fast spreading road |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510487269.1A Division CN105064161B (en) | 2015-08-11 | 2015-08-11 | A kind of low temperature resistant city fast spreading road |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107142807A true CN107142807A (en) | 2017-09-08 |
Family
ID=54493649
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710360385.6A Pending CN107142807A (en) | 2015-08-11 | 2015-08-11 | A kind of low temperature resistant fast spreading road |
| CN201510487269.1A Expired - Fee Related CN105064161B (en) | 2015-08-11 | 2015-08-11 | A kind of low temperature resistant city fast spreading road |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510487269.1A Expired - Fee Related CN105064161B (en) | 2015-08-11 | 2015-08-11 | A kind of low temperature resistant city fast spreading road |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107142807A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268370B (en) * | 2017-06-24 | 2019-12-06 | 广州市白云第五建筑工程有限公司 | assembled concrete road |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2264132A1 (en) * | 1974-03-15 | 1975-10-10 | Douguet Eugene | Prefabricated sports area floor covering panel - has reinforced concrete and granular core covered by a top surfacing |
| SU1011756A1 (en) * | 1981-12-31 | 1983-04-15 | Ленинградская Ордена Ленина Лесотехническая Академия Им.С.М.Кирова | Butt joint of knock-down prefabricated paving of ferroconcrete slab |
| CN203684027U (en) * | 2013-12-24 | 2014-07-02 | 深圳市建工集团股份有限公司 | Prefabricated assembled temporary road for building operations |
| CN103937268A (en) * | 2014-05-12 | 2014-07-23 | 安徽孟凌精密电子有限公司 | Rubber gasket containing nano mica powder |
| CN203923831U (en) * | 2014-07-07 | 2014-11-05 | 刘浦贵 | A kind of ladder type concrete member prestressing force assembling roadbed |
| CN104497582A (en) * | 2014-12-17 | 2015-04-08 | 苏州锦腾电子科技有限公司 | Low-temperature-resistant silicon rubber and preparation method thereof |
| CN104672724A (en) * | 2015-03-11 | 2015-06-03 | 江苏千富之丰科技有限公司 | Low temperature-resistant fluoroelastomer and preparation method thereof |
| CN104774411A (en) * | 2015-04-25 | 2015-07-15 | 江苏千富之丰科技有限公司 | Fluorine-containing elastomer with excellent low temperature and liquid resistance and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2243637B (en) * | 1990-04-30 | 1994-12-07 | Heng Beng Lam | Method of constructing an elevated roadway |
| CN102535295B (en) * | 2012-03-21 | 2014-12-10 | 长安大学 | Fabricated prestressed heat-resistant cement concrete pavement and construction process thereof |
| CN202718022U (en) * | 2012-06-14 | 2013-02-06 | 长安大学 | Fabricated type prestressed concrete pavement |
-
2015
- 2015-08-11 CN CN201710360385.6A patent/CN107142807A/en active Pending
- 2015-08-11 CN CN201510487269.1A patent/CN105064161B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2264132A1 (en) * | 1974-03-15 | 1975-10-10 | Douguet Eugene | Prefabricated sports area floor covering panel - has reinforced concrete and granular core covered by a top surfacing |
| SU1011756A1 (en) * | 1981-12-31 | 1983-04-15 | Ленинградская Ордена Ленина Лесотехническая Академия Им.С.М.Кирова | Butt joint of knock-down prefabricated paving of ferroconcrete slab |
| CN203684027U (en) * | 2013-12-24 | 2014-07-02 | 深圳市建工集团股份有限公司 | Prefabricated assembled temporary road for building operations |
| CN103937268A (en) * | 2014-05-12 | 2014-07-23 | 安徽孟凌精密电子有限公司 | Rubber gasket containing nano mica powder |
| CN203923831U (en) * | 2014-07-07 | 2014-11-05 | 刘浦贵 | A kind of ladder type concrete member prestressing force assembling roadbed |
| CN104497582A (en) * | 2014-12-17 | 2015-04-08 | 苏州锦腾电子科技有限公司 | Low-temperature-resistant silicon rubber and preparation method thereof |
| CN104672724A (en) * | 2015-03-11 | 2015-06-03 | 江苏千富之丰科技有限公司 | Low temperature-resistant fluoroelastomer and preparation method thereof |
| CN104774411A (en) * | 2015-04-25 | 2015-07-15 | 江苏千富之丰科技有限公司 | Fluorine-containing elastomer with excellent low temperature and liquid resistance and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105064161A (en) | 2015-11-18 |
| CN105064161B (en) | 2017-08-04 |
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