CN105016669B - A kind of pre-fabricated electric cables ditch and preparation method thereof - Google Patents
A kind of pre-fabricated electric cables ditch and preparation method thereof Download PDFInfo
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- CN105016669B CN105016669B CN201410173302.9A CN201410173302A CN105016669B CN 105016669 B CN105016669 B CN 105016669B CN 201410173302 A CN201410173302 A CN 201410173302A CN 105016669 B CN105016669 B CN 105016669B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The present invention discloses a kind of pre-fabricated electric cables ditch and preparation method thereof, and using fluidised form very-high performance inorganic powder concreting, described fluidised form very-high performance inorganic powder concrete includes each raw material components of following weight parts composition：500 ~ 650 parts of low alkali portland cement or Portland cement；85 ~ 120 parts of silicon ash；II grade of 115 ~ 145 parts of flyash；175 ~ 215 parts of slag powders；1050 ~ 1250 parts of river sand；26 ~ 32 parts of high efficiency water reducing agent；130 ~ 145 parts of water；Straight 100 ~ 140 parts of copper facing steel fibre.The present invention is apparent attractive in appearance, and pressure-proof and snap-resistent intensity is big, lightweight, is the weight 1/3 ~ 1/5 that normal concrete builds ditch or concreting ditch by laying bricks or stones.
Description
Technical field
The present invention relates to building material field, more particularly to a kind of pre-fabricated electric cables ditch and preparation method thereof.
Background technology
The prefabricated ditch China of electric power has been used up to be traditional brick masonry or uses on-site concrete, this start within several years into
Row explores research and development pre-fabricated electric cables ditch, is particularly Jiangsu, zhejiang and other places, and main cause is poor geological conditions, drift sand mud geology
More, excavation construction difficulty is larger, large-scale flourishing city domestic in recent years due to maintenance, transformation etc. reason, for reduce traffic and
Other influences, accelerating construction progress also begins to exploration and begins to use, and is successively proposed by the exploration and research and development of more than ten years various
The prefabricated ditch of form, such as large-scale monolithic concrete pours cable duct, cable duct that various organic resins are made etc., real to throw
Enter usage amount and few, very want reason to be, concreting pre-fabricated electric cables groove, well deadweight are excessive, to basic treatment and hold
Carry pressure requirements higher, foundation settlement dislocation etc. occurs during use, construction in addition needs Large-scale Hoisting equipment, spells
The more difficult implementation of dress movement, and the cable trench being made using organic resin is easily received in backfilling process and during later stage use
Compressive strain, therefore the high-strength light durability how developed and be effectively applicable to engineering is explored in many cities domestic always in trial
The good pre-fabricated electric cables ditch of energy.
The Chinese patent of Application No. 200910060802.0《A kind of low cost active powder concrete and its preparation side
Method》A kind of RPC is disclosed, is 0.52 ~ 0.58: 0.16 ~ 0.18: 0.10 ~ 0.16: 0.13 ~ 0.16 by mass ratio
: 0.012 ~ 0.018: 0.9 ~ 1.1: 0.14 ~ 0.18: 0.156 ~ 0.234 portland cement, steel-making slag powder, flyash, silicon ash, height
Effect water reducer, river sand, mixing water and steel fibre are obtained.The patent adds slag as a kind of mineral admixture, in concrete morning
The resistance of concrete to chloride ion penetration of phase is less than straight cement concrete, and the resistance of concrete to chloride ion penetration in later stage is higher than straight cement concrete,
But in the case of identical volume, the performance of slag is not as good as flyash and slag, additionally, a small amount of CaO is in a free form in slag
In the presence of f-CaO aquations generation Ca (OH）2, volume increase 1.98 times, cause steel slag stability bad.
The Chinese patent of Application No. 200810019337.1《Slag mixed active powder concrete》Disclose one kind and mix ore deposit
Slag RPC, its each component is with respect to the part by weight of portland cement：Portland cement：1；Slag：0.40~
0.60；Silica flour：0.20~0.35；Silica flour：0.20~0.35；River sand：1.20~1.60；Water：0.20~0.28；Water reducer：0.02~
0.03.RPC disclosed in the patent has pumpability poor, and impermeability is poor, impact resistance difference the shortcomings of.
The Chinese patent of Application No. 200710055438.X《High-durability high-activity powder concrete electrical pole》It is open
It is thin for 12 ~ 15mm that a kind of composition of raw materials of high-durability high-activity powder concrete electrical pole is a diameter of 0.22mm length
100 ~ 140 parts of the copper-plated steel fibre of circular surface, 690 ~ 720 parts of Portland cement, average grain diameter is 0.31 μm of silica flour 160
~ 200 parts, 21 ~ 25 parts of un-naphthalene water reducing agent, 170 ~ 190 parts of water, particle diameter for 0.16 ~ 1.25mm fine quartz sand 1110 ~
1190 parts.The invention is relatively costly, and cement content and silicon ash content are higher, and it is very strong that itself sticks poly- property, it is impossible to form dispersion gravity flow
Level state, surface easily forms stomata, and quartz sand is 4 ~ 5 times of river sand relatively, and economic performance has been difficult product promotion and has been worth.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of heavy and light matter, high-strength, easy construction and apparent U.S.
The pre-fabricated electric cables ditch of sight.
Above-mentioned purpose of the invention is achieved by following technical solution：
A kind of pre-fabricated electric cables ditch, using fluidised form very-high performance inorganic powder concreting, described fluidised form very-high performance
Inorganic powder concrete includes each raw material components of following weight parts composition：
500 ~ 650 parts of the low alkali portland cement or Portland cement of 30 ~ 60 μm of average grain diameter；
0.18 μm of average grain diameter, 85 ~ 120 parts of the silicon ash of SiO2 content >=85%；
115 ~ 145 parts of II grade of flyash of 20 ~ 40 μm of average grain diameter；
175 ~ 215 parts of the S95 grades of above slag powders that 10 ~ 30 μm of average grain diameter；
Particle diameter is 1050 ~ 1250 parts of the river sand of 0.16 ~ 4.75mm, clay content less than 0.5%；
High efficiency water reducing agent 26 ~ 32 part of the water-reducing rate more than 30%；
130 ~ 145 parts of water；
A diameter of 0.18 ~ 0.25mm, length are 100 ~ 140 parts of the copper facing steel fibre of 10 ~ 15mm.
Further, described fluidised form very-high performance inorganic powder concrete includes each raw material group of following weight parts composition
Point：
575 parts of the low alkali portland cement or Portland cement of 30 ~ 60 μm of average grain diameter；
0.18 μm of average grain diameter, 105 parts of the silicon ash of SiO2 content >=85%；
130 parts of II grade of flyash of 20 ~ 40 μm of average grain diameter；
195 parts of the S95 grades of above slag powders that 10 ~ 30 μm of average grain diameter；
Particle diameter is 1150 parts of the river sand of 0.16 ~ 4.75mm, clay content less than 0.5%；
High efficiency water reducing agent 29 part of the water-reducing rate more than 30%；
136 parts of water；
A diameter of 0.18 ~ 0.25mm, length are 120 parts of the copper facing steel fibre of 10 ~ 15mm.
Replace cement by using slag and flyash, the glutinous poly- property of reduction proportioning is low, enables its self-leveling good, divergence
Greatly, air content is low, and economic cost performance is high, and satisfaction exempts from vibration moulding demand.
Further, a kind of pre-fabricated electric cables ditch, including U-lag, the U-lag includes base plate, side wall and bears down on one, using stream
State very-high performance inorganic powder concreting, the base plate is provided with the first attachment structure for being connected with another base plate, institute
State side wall and be provided with the second attachment structure for being connected with opposite side wall.
The present invention uses precast assembly, is realized by the first and second attachment structures.The simple structure, easily construction, can
Quick accelerating construction progress, reduces construction site management difficulty.
Further, first attachment structure is provided with the concavo-convex backplane interface being mutually twisted for base plate both sides.Institute
Stating backplane interface includes first interface and second interface, and the second interface of the first interface correspondence occlusion adjacent bottom plates is described
The first interface of the adjacent another base plate of second interface correspondence occlusion.
Second attachment structure be side wall before and after be provided with the concavo-convex side wall interface being mutually twisted.The side wall interface
Including the 3rd interface and the 4th interface, the 4th interface of the 3rd interface correspondence occlusion adjacent wall, the 4th interface pair
The 3rd interface of adjacent opposite side wall should be engaged.
Post hydro-expansive rubber bar, the side wall and opposite side wall in the gap that the base plate is mutually twisted with another base plate
Post hydro-expansive rubber bar in the gap being mutually twisted.The hydro-expansive rubber bar plays sealing function.
Further, the base plate is provided with first time extended corner and second time extended corner, and the side wall is provided with first
Extended corner on extended corner and second, it is described bear down on one be integrated with side wall it is stepped.First, second time extended corner and
First, extended corner plays a part of to increase anti-folding, the resistance to compression degree of cable duct on two, and first, second extended corner that rains can also have drainage
The effect of water.
The side wall is provided with multiple preformed holes, and the base plate is provided with drainage trough and inlet.The preformed hole is used to install
Support, uppermost preformed hole is used to install expansion bolt.
First time extended corner and the second time lower edge line base plate of extended corner to gutter channel outer are respectively equipped with first row
The gradient of water slope and the second weathering, first weathering and the second weathering is 1 ~ 3%.The design of weathering can make rainwater
Quickly drain, make cable duct relatively dry, do not accumulate rainwater.
The steel mesh protective layer for 10 ~ 15mm with thickness is provided with the pre-fabricated electric cables ditch, the steel mesh protective layer is many
The crisscross composition of bar steel bar.The steel mesh protective layer can strengthen high-strength durable of the invention.
The pre-fabricated electric cables ditch thickness is 3cm ~ 10cm.Cable duct is poured using fluidised form very-high performance inorganic powder concrete
Build, its thickness is the 1/3 ~ 1/5 of traditional cable ditch.
The preparation method of the pre-fabricated electric cables ditch, it is characterised in that comprise the following steps：
S1. the copper facing steel fibre and river sand that restriction will be formulated add mixer stirring to be uniformly dispersed for 2 ~ 3 minutes；
S2. again to the low alkali portland cement or Portland cement, silicon ash and ore deposit for adding formula to limit in mixer
Ground-slag continues to stir 1 ~ 2 minute to uniform；
S3. continues to stir 3 ~ 4 minutes to being uniformly dispersed to high efficiency water reducing agent and water is sequentially added in the material obtained by S2,
Obtain fluidised form very-high performance inorganic powder concrete；
Described water is suitably finely tuned according to actual slump 26cm ~ 30cm, divergence for 60cm ~ 70cm；
S4. by the concrete prepared by S3 by the uniform cloth of distribution device in cable duct mould, during fabric thickness
Carry out pouring cloth again after spreading steel mesh protective layer during away from mold box 10 ~ 15mm of surface layer, the slight vibration of passing through of going forward side by side is smooth, bottom surface
Enter natural curing 12 ~ 14 hours after press polish, subsequently into infrared high-temperature maintenance, temperature is 90+5 DEG C, constant temperature 12 hours；
The steel mesh protective layer is the crisscross composition of a plurality of steel bar.
Compared with prior art, the present invention has the advantages that：
（1）Fluidised form very-high performance inorganic powder concrete is employed, thickness is the 1/3 ~ 1/5 of traditional product, is significantly subtracted
Light weight, the mechanical index performance and durability performance that improve product, its compression strength is up to 110 ~ 150 MPas, anti-folding
14 ~ 20 MPas of intensity, with corrosion-resistant, life cycle management it is good the features such as；
（2）Product increased the flexibility of site operation by assembling process realization, construction work be greatly reduced strong
Degree, reduces the complex management degree of job site；Principle is simple, installation operation is easy, can fast and effectively solve to construct
Cheng Zhiliang is difficult to control to, and the problems such as construction speed are influenceed by weather；
（3）Can large area reduce construction and excavation amount, reduce live labor management and environmental pollution, it is quick increase construct into
Degree, reduces comprehensive making；
（4）Steel mesh protective layer is provided with, strengthens high-strength durable of the invention；
Figure of description
Fig. 1 is structure front view of the invention；Wherein, 1, base plate；2nd, furrow bank；3rd, bear down on one；4th, first time extended corner；5th,
Two times extended corners；6th, extended corner on first；7th, extended corner on second；8th, the 3rd interface；9th, the 4th interface；10th, first interface；
11st, second interface；12nd, the first weathering；13rd, the second weathering；14th, drainage trough；15th, inlet；16th, preformed hole；
Fig. 2 is structure left view of the invention；
Fig. 3 is structure top view of the invention；
Fig. 4 is preformed hole schematic diagram of the present invention.
Specific embodiment
The present invention is made with reference to Figure of description and specific embodiment further being elaborated, but embodiment is simultaneously
The present invention is not limited in any form.
Embodiment 1
A kind of pre-fabricated electric cables ditch, it is characterised in that described fluidised form very-high performance inorganic powder concrete includes following heavy
Each raw material components of amount part composition：
575 parts of the low alkali portland cement of 30 ~ 60 μm of average grain diameter；
0.18 μm of average grain diameter, 105 parts of the silicon ash of SiO2 content >=85%；
130 parts of II grade of flyash of 20 ~ 40 μm of average grain diameter；
195 parts of the S95 grades of above slag powders that 10 ~ 30 μm of average grain diameter；
Particle diameter is 1150 parts of the river sand of 0.16 ~ 4.75mm, clay content less than 0.5%；
High efficiency water reducing agent 29 part of the water-reducing rate more than 30%；
136 parts of water；
A diameter of 0.18 ~ 0.25mm, length are 120 parts of the copper facing steel fibre of 10 ~ 15mm.
As shown in Fig. 1,2,3 and 4, a kind of pre-fabricated electric cables ditch, including U-lag, the U-lag includes base plate 1, the and of side wall 2
Bear down on one 3, using fluidised form very-high performance inorganic powder concreting, the base plate be provided with for be connected with another base plate first
Attachment structure, the side wall is provided with the second attachment structure for being connected with opposite side wall.
First attachment structure is provided with the concavo-convex backplane interface being mutually twisted for base plate both sides.The backplane interface
Including first interface 10 and second interface 11, the second interface 11 of the correspondence occlusion adjacent bottom plates of the first interface 10, described the
The first interface 10 of the adjacent another base plate of the correspondence occlusion of two interface 11.
Second attachment structure be side wall before and after be provided with the concavo-convex side wall interface being mutually twisted.The side wall interface
Including the 3rd interface 8 and the 4th interface 9, the 4th interface 9 of the correspondence of the 3rd interface 8 occlusion adjacent wall, the described 4th connects
3rd interfaces 8 of the adjacent opposite side wall of the correspondence occlusion of mouth 9.
The base plate is provided with first time extended corner 4 and second time extended corner 5, and the side wall is provided with the He of extended corner 6 on first
Extended corner 7 on second, it is described bear down on one 3 be integrated with side wall 2 it is stepped.
Post hydro-expansive rubber bar, the side wall and opposite side wall in the gap that the base plate is mutually twisted with another base plate
Post hydro-expansive rubber bar in the gap being mutually twisted.
The side wall is provided with multiple preformed holes 16, and the base plate is provided with drainage trough 14 and inlet 15.First time expansion
Exhibition angle 4 and second time lower edge line base plate of extended corner 5 to the outer of drainage trough 14 are respectively equipped with the first weathering 12 and the second draining
Slope 13, the gradient of the weathering 13 of first weathering 12 and second is 3%.
The steel mesh protective layer for 12mm with thickness is additionally provided with, the steel mesh protective layer is crisscross group of a plurality of steel bar
Into.The pre-fabricated electric cables ditch thickness is 7cm.
The preparation method of the pre-fabricated electric cables ditch, it is characterised in that comprise the following steps：
S1. the copper facing steel fibre and river sand that restriction will be formulated add mixer stirring to be uniformly dispersed for 2 ~ 3 minutes；
S2. again to the low alkali portland cement or Portland cement, silicon ash and ore deposit for adding formula to limit in mixer
Ground-slag continues to stir 1 ~ 2 minute to uniform；
S3. continues to stir 3 ~ 4 minutes to being uniformly dispersed to high efficiency water reducing agent and water is sequentially added in the material obtained by S2,
Obtain fluidised form very-high performance inorganic powder concrete；
Described water is suitably finely tuned according to actual slump 26cm, divergence for 60cm；
S4. by the concrete prepared by S3 by the uniform cloth of distribution device in cable duct mould, during fabric thickness
Carry out pouring cloth again after spreading steel mesh protective layer during away from mold box surface layer 10mm, the slight vibration of passing through of going forward side by side is smooth, bottom surface pressure
Enter natural curing 12 ~ 14 hours after light, subsequently into infrared high-temperature maintenance, temperature is 90+5 DEG C, constant temperature 12 hours；
The steel mesh protective layer is the crisscross composition of a plurality of steel bar.
Embodiment 2
In addition to the weight portion difference of described fluidised form very-high performance each raw material components of inorganic powder concrete, other
Part is with embodiment 1；
Described fluidised form very-high performance inorganic powder concrete includes each raw material components of following weight parts composition：
500 parts of the low alkali portland cement or Portland cement of 30 ~ 60 μm of average grain diameter；
0.18 μm of average grain diameter, 85 parts of the silicon ash of SiO2 content >=85%；
115 parts of II grade of flyash of 20 ~ 40 μm of average grain diameter；
175 parts of the S95 grades of above slag powders that 10 ~ 30 μm of average grain diameter；
Particle diameter is 1050 parts of the river sand of 0.16 ~ 4.75mm, clay content less than 0.5%；
High efficiency water reducing agent 26 part of the water-reducing rate more than 30%；
130 parts of water；
A diameter of 0.18 ~ 0.25mm, length are 100 parts of the copper facing steel fibre of 10 ~ 15mm.
Embodiment 3
In addition to the weight portion difference of described fluidised form very-high performance each raw material components of inorganic powder concrete, other
Part is with embodiment 1；
Described fluidised form very-high performance inorganic powder concrete includes each raw material components of following weight parts composition：
650 parts of the low alkali portland cement or Portland cement of 30 ~ 60 μm of average grain diameter；
0.18 μm of average grain diameter, 120 parts of the silicon ash of SiO2 content >=85%；
145 parts of II grade of flyash of 20 ~ 40 μm of average grain diameter；
215 parts of the S95 grades of above slag powders that 10 ~ 30 μm of average grain diameter；
Particle diameter is 1250 parts of the river sand of 0.16 ~ 4.75mm, clay content less than 0.5%；
High efficiency water reducing agent 32 part of the water-reducing rate more than 30%；
145 parts of water；
A diameter of 0.18 ~ 0.25mm, length are 140 parts of the copper facing steel fibre of 10 ~ 15mm.
Comparative example 1
In addition to described concrete is normal concrete, other conditions are with embodiment 1；
The normal concrete includes each raw material components of following weight parts composition：
450 parts of 42.5 cement of normal silicate；
River sand, grain composition is 700 parts of middle sand；
5 ~ 15 millimeters of 1150 parts of stones；
170 parts of water；
High efficiency water reducing agent 6 part of the water-reducing rate more than 20%；
Comparative example 2
In addition to saving silicon ash in described ultra-high performance concrete raw material components, other conditions are with embodiment 1；
Comparative example 3
In addition to saving flyash in described ultra-high performance concrete raw material components, other conditions are with embodiment 1；
Comparative example 4
In addition to saving slag powders in described ultra-high performance concrete raw material components, other conditions are with embodiment 1；
Comparative example 5
Except in the ultra-high performance concrete silicon ash, flyash it is different with the weight portion of slag powders in addition to, other conditions
With embodiment 1；
The weight portion of silicon ash, flyash and slag powders is as follows in the ultra-high performance concrete：
84 parts of silicon ash
114 parts of flyash
174 parts of slag powders；
Comparative example 6
Except in the ultra-high performance concrete silicon ash, flyash it is different with the weight portion of slag powders in addition to, other conditions
With embodiment 1；
The weight portion of silicon ash, flyash and slag powders is as follows in the ultra-high performance concrete：
121 parts of silicon ash
146 parts of flyash
216 parts of slag powders；
Pre-fabricated electric cables ditch of the 1200*1400*800 cable ducts according to obtained by prepared by embodiment 1 ~ 3 and comparative example 1 ~ 6, its property
Can be such as following table：
| Thickness (cm) | Deadweight (kg) | Bearing capacity KN | Standard requirement KN | |
| Embodiment 1 | 7 | 630 | 290 | 224 |
| Embodiment 2 | 6 | 540 | 240 | 224 |
| Embodiment 3 | 8 | 700 | 310 | 224 |
| Comparative example 1 | 24 | 2300 | 280 | 224 |
| Comparative example 2 | 7 | 640 | 210 | 224 |
| Comparative example 3 | 7 | 630 | 240 (surface holes are more） | 224 |
| Comparative example 4 | 7 | 630 | 240 | 224 |
| Comparative example 5 | 7 | 630 | 235 | 224 |
| Comparative example 6 | 7 | 630 | 250 | 224 |
Contrasted by comparative example 1 and embodiment 1 ~ 3, intuitively find out that the deadweight of pre-fabricated electric cables ditch of the invention is significantly less than
Using the cable duct of normal concrete, also superior to the cable bearer of common concrete material in terms of bearing capacity；By comparative example 2
~ 4 with the contrast of embodiment 1, obvious embodiment 1 is more excellent in terms of bearing capacity, and the cable duct surface holes of the preparation of comparative example 3 are more,
From data, the combination of silicon ash, flyash and slag powders and proportioning can make best performance of the invention；By comparative example 5,6
Contrasted with embodiment 1 ~ 3, the bearing capacity ratio embodiment 1 ~ 3 of comparative example 5 is all low, although comparative example 6 is omited than the bearing capacity of embodiment 2
Greatly, it is but higher on cost, it is seen that inventive formulation number range is optimal.
Claims (6)
1. a kind of pre-fabricated electric cables ditch, it is characterised in that use fluidised form very-high performance inorganic powder concreting, described fluidised form
Very-high performance inorganic powder concrete is made up of each raw material components that following weight parts are constituted：
500 ~ 650 parts of the low alkali portland cement or Portland cement of 30 ~ 60 μm of average grain diameter；
0.18 μm of average grain diameter, SiO285 ~ 120 parts of the silicon ash of content >=85%；
115 ~ 145 parts of II grade of flyash of 20 ~ 40 μm of average grain diameter；
175 ~ 215 parts of the S95 grades of above slag powders that 10 ~ 30 μm of average grain diameter；
Particle diameter is 1050 ~ 1250 parts of the river sand of 0.16 ~ 4.75mm, clay content less than 0.5%；
High efficiency water reducing agent 26 ~ 32 part of the water-reducing rate more than 30%；
130 ~ 145 parts of water；
A diameter of 0.18 ~ 0.25mm, length are 100 ~ 140 parts of the copper facing steel fibre of 10 ~ 15mm；
The pre-fabricated electric cables ditch includes U-lag, and the U-lag includes base plate, side wall and bears down on one, inorganic using fluidised form very-high performance
Powder concrete is poured, and the base plate is provided with the first attachment structure for being connected with another base plate, the side wall be provided with for
The second attachment structure being connected with opposite side wall；
First attachment structure is provided with the concavo-convex backplane interface being mutually twisted for base plate both sides；Second attachment structure
To be provided with the concavo-convex side wall interface being mutually twisted before and after the wall of side；
The base plate is provided with first time extended corner and second time extended corner, and the side wall is provided with first on extended corner and second and expands
Exhibition angle, it is described bear down on one be integrated with side wall it is stepped.
2. a kind of pre-fabricated electric cables ditch according to claim 1, it is characterised in that described fluidised form very-high performance inorganic powder
Concrete is made up of each raw material components that following weight parts are constituted：
575 parts of the low alkali portland cement or Portland cement of 30 ~ 60 μm of average grain diameter；
0.18 μm of average grain diameter, SiO2105 parts of the silicon ash of content >=85%；
130 parts of II grade of flyash of 20 ~ 40 μm of average grain diameter；
195 parts of the S95 grades of above slag powders that 10 ~ 30 μm of average grain diameter；
Particle diameter is 1150 parts of the river sand of 0.16 ~ 4.75mm, clay content less than 0.5%；
High efficiency water reducing agent 29 part of the water-reducing rate more than 30%；
136 parts of water；
A diameter of 0.18 ~ 0.25mm, length are 120 parts of the copper facing steel fibre of 10 ~ 15mm.
3. a kind of pre-fabricated electric cables ditch according to claim 1, it is characterised in that the base plate is mutually twisted with another base plate
Hydro-expansive rubber bar is posted in gap, and the side wall posts hydro-expansive rubber bar with the gap that opposite side wall is mutually twisted.
4. a kind of pre-fabricated electric cables ditch according to claim 1, it is characterised in that the side wall is provided with multiple preformed holes, described
Base plate is provided with drainage trough and inlet.
5. a kind of pre-fabricated electric cables ditch according to claim 1, it is characterised in that extended on extended corner and second on described first
The lower edge at angle to drainage trough outer is respectively equipped with the first weathering and the second weathering, first weathering and the second weathering
The gradient be 1 ~ 3%.
6. according to claim 1 ~ 5 Arbitrary Term pre-fabricated electric cables ditch preparation method, it is characterised in that comprise the following steps：
S1. the copper facing steel fibre and river sand that restriction will be formulated add mixer stirring to be uniformly dispersed for 2 ~ 3 minutes；
S2. again to the low alkali portland cement or Portland cement, silicon ash and slag powders for adding formula to limit in mixer
Continue to stir 1 ~ 2 minute to uniform；
S3. continue to stir 3 ~ 4 minutes to being uniformly dispersed to sequentially adding high efficiency water reducing agent and water in the material obtained by S2, flowed
State very-high performance inorganic powder concrete；
Described water is suitably finely tuned according to actual slump 26cm ~ 30cm, divergence for 60cm ~ 70cm；
S4. by the concrete prepared by S3 by the uniform cloth of distribution device in cable duct mould, during fabric thickness away from mould
Carry out pouring cloth again after paving steel mesh protective layer during tool box 10 ~ 15mm of surface layer, the slight vibration of passing through of going forward side by side is smooth, bottom surface press polish
Enter natural curing 12 ~ 14 hours afterwards, subsequently into infrared high-temperature maintenance, temperature is 90 ± 5 DEG C, constant temperature 12 hours；
The steel mesh protective layer is the crisscross composition of a plurality of steel bar.
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| CN105236896A (en) * | 2015-11-18 | 2016-01-13 | 黄贺明 | Light high-performance powder concrete and preparation method thereof |
| CN105470824A (en) * | 2015-12-30 | 2016-04-06 | 华润电力（贺州）有限公司 | Anti-condensation apparatus for switch cabinet in limestone powder station section |
| CN106495580B (en) * | 2016-10-21 | 2019-05-28 | 长江宜昌航道工程局 | A kind of steel fiber reinforced concrete structure water-permeable frame method for prefabricating |
| CN107276002B (en) * | 2017-07-25 | 2018-11-13 | 宁夏众力管廊科技有限公司 | A kind of cable duct groove body component |
| CN112374826A (en) * | 2020-11-16 | 2021-02-19 | 宁波市电力设计院有限公司 | High-performance cement-based material for prefabricated cable trench |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1066239A (en) * | 1996-08-13 | 1998-03-06 | Adachi Concrete Kogyo:Kk | Cable trough |
| JP2002199532A (en) * | 2000-12-27 | 2002-07-12 | Ageo:Kk | End station method for branch cable in concrete cable trough and its device |
| JP3936864B2 (en) * | 2001-12-28 | 2007-06-27 | 川田建設株式会社 | Cable storage duct device |
| CN2547047Y (en) * | 2002-07-02 | 2003-04-23 | 远山产业(烟台)有限公司 | Cable trough |
| CN201388032Y (en) * | 2009-04-07 | 2010-01-20 | 湖北省输变电工程公司 | Cable trench convenient for draining |
| CN101820156B (en) * | 2010-03-26 | 2012-05-23 | 黄贺明 | Combined cable trench |
| CN202840440U (en) * | 2012-07-13 | 2013-03-27 | 康冰 | Ground prefabricated cable trench |
| CN103224358B (en) * | 2013-02-07 | 2015-02-25 | 黄贺明 | Environment-friendly ground fine river sand powder concrete |
| CN103224357B (en) * | 2013-02-07 | 2015-02-25 | 黄贺明 | Green environmentally-friendly broken stone active powder concrete |
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