CN101915006A - High-strength electric pole - Google Patents
High-strength electric pole Download PDFInfo
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- CN101915006A CN101915006A CN 201010270177 CN201010270177A CN101915006A CN 101915006 A CN101915006 A CN 101915006A CN 201010270177 CN201010270177 CN 201010270177 CN 201010270177 A CN201010270177 A CN 201010270177A CN 101915006 A CN101915006 A CN 101915006A
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Abstract
The invention provides a high-strength electric pole. The high-strength electric pole comprises reinforcement, an internal lining steel hoop (2) and concrete, wherein the reinforcement comprises longitudinal tensioned straight reinforcement and spiral reinforcement (3); the longitudinal tensioned straight reinforcement comprises prestressed main reinforcement (1) and non-prestressed reinforcement (4) which are arranged at an interval; the prestressed main reinforcement (1) and the non-prestressed reinforcement (4) are positioned between the spiral reinforcement (3) and the internal lining steel hoop (2); the concrete is elastic concrete; the high-strength electric pole is characterized in that the diameter of the prestressed main reinforcement (1) is smaller than that of the non-prestressed reinforcement (4); and the length of the prestressed main reinforcement (1) is greater than that of the non-prestressed reinforcement (4). The high-strength electric pole has the advantages of saving the using amount of the steel and reducing the production cost, along with high crack resistance, high tensile strength and light weight.
Description
Technical field
The present invention relates to a kind of mast frame of power transmission line special use, is a kind of electric pole specifically, particularly a kind of high strength electric pole.
Background technology
The electric pole that is used for aerial cable line at present generally has high strength electric pole and iron tower, and wherein the high strength electric pole generally is used for built on stilts 10kV nude cable and insulated cable, and iron tower generally is used for aerial high-voltage cable or extra-high-tension cable.The high strength electric pole is subjected to the influence of concrete strength, generally has only tens meters long.Along with the continuous expansion of city size, some 110kV, 220kV transformer station begin to be built in the urban district, therefore the defeated modified line road of 110kV, 220kV need be transported to these transformer stations by the sky, city.Owing to be subjected to the restriction of high strength electric pole length, what be used for the built on stilts 220kV general use in defeated modified line road at present is iron tower.
Have problems and use iron tower to set up the defeated modified line road of 110kV, 220kV in the city, big as floor space, construction and installation difficulty, maintenance cost are high.Therefore, begin on some power transmission and transformation lines to consider to use the high strength electric pole to replace iron tower in order to set up the defeated modified line road of 110kV, 220kV, so the quality of high strength electric pole is had higher requirement.
As being: 200620046486.3 at disclosed number of patent application, patent name be a kind of big moment of flexure strong concrete electric pole patent documentation disclosed, a kind of prestressed concrete electric pole is disclosed, it is by prestressing force main reinforcement and nonprestressed reinforcement and interior stirrup, spiral bar constitutes, and adopts the mode of being spaced to carry out arrangement of reinforcement between described prestressing force main reinforcement and the nonprestressed reinforcement.The described electric pole of this patent can improve the crack resistance and the tensile strength of electric pole.But this electric pole is heavier, needs steel more, and anticorrosive and anti-acid rain ability is relatively poor.
In addition, there is following problems in the electric pole that generally uses now: low elasticity, low extensibility; Resistance to wear, compressive strength is lower; Antifatigue, shock resistance are relatively poor; Solidified forming time is long; Extreme temperature holding capacity such as high and low temperature are poor, thereby, be difficult to be applicable to that disaster such as the earthquake occasion that takes place frequently uses.
Summary of the invention
For overcoming described problem, the object of the invention is: a kind of high strength electric pole is provided, and described high strength electric pole has high resiliency, high tenacity, high extensibility, resistance to wears, the high compressive strength height, and antifatigue, erosion-resisting characteristics are good; Anti-aging, resistance to chemical attack, weather resistance effect, curing molding only need 2-3 hour, high/low temperature holding capacity big, wait the high-quality high-tech building function material of good characteristic.In addition, this electric pole lighter weight is saved the steel use amount, has reduced cost of production.The present invention is specially adapted to disasters such as the earthquake occasion that takes place frequently.
In order to solve the problems of the technologies described above, the present invention is by the following technical solutions: a kind of high strength electric pole, it includes reinforcing bar, liner stirrup and concrete, described reinforcing bar is divided into straight reinforcing bar of longitudinal stress and spiral reinforcement, the straight reinforcing bar of described longitudinal stress comprises spaced apart prestressing force master muscle and nonprestressed reinforcement, described prestressing force master muscle and nonprestressed reinforcement are between spiral reinforcement and liner stirrup, the diameter of described prestressing force master muscle is littler than the diameter of described nonprestressed reinforcement, and the length of described prestressing force master muscle is longer than the length of described nonprestressed reinforcement.Make described electric pole not only have good crack resistance and tensile strength like this, and lighter weight, the use amount of also saving steel has simultaneously reduced cost of production.
According to high strength electric pole of the present invention, be preferably, described concrete is an elastic concrete, it by weight percentage, comprise A, B, three kinds of components of C, wherein the A component comprises 75～100% PIC and 0～25% additive, and the B component comprises 80～96% castor oil and 4～20% additive, the C component comprises 50～70% grating quartz sand and 30～50% additive, and the ratio of described A, B, C component is 1: 1-2: 10～16.
Can improve the elasticity of electric pole and the convenience of manufacturing more like this, can be in case of emergency, on-the-spot rapid processing is produced this high strength electric pole, satisfies emergency requirement.
According to high strength electric pole of the present invention, be preferably, described nonprestressed reinforcement has two or more different lengths, and its distribution of lengths is successively decreased to root from the head of the mast.
According to high strength electric pole of the present invention, be preferably, the diameter of described prestressing force master muscle is 8-10mm, the diameter of described nonprestressed reinforcement is 12-18mm.
According to high strength electric pole of the present invention, be preferably, described liner stirrup and nonprestressed reinforcement adopt the arc welding welding.
According to high strength electric pole of the present invention, be preferably, the two ends of described high strength electric pole are provided with top structure steel plate ring and root configurations steel plate ring.Described root configurations steel plate ring and nonprestressed reinforcement adopt the arc welding welding, to improve the anticorrosive and anti-acid rain ability of electric pole, can prolong the application life of electric pole.
According to high strength electric pole of the present invention, be preferably, additive in the described concrete A component is for being selected from a kind of of retarding agent, early strength admixture and accelerating admixture, described retarding agent is selected from tartaric acid, gypsum, winestone potassium sodium one or two kind, described early strength admixture be selected from villaumite, nitrite, chromate and sulfate one or two kind, described accelerating admixture is an aluminum oxide clinker.
According to high strength electric pole of the present invention, be preferably, additive in the described concrete B component is for being selected from a kind of of ordinary water-reducing agent and air entraining agent, described water reducing agent is selected from calcium lignosulfonate and/or molasses, and described air entraining agent is selected from one of sodium abietate, sodium alkyl sulfonate, fatty alcohol or two kinds.
According to high strength electric pole of the present invention, be preferably, additive on the described coagulation in the C component is corrosion inhibitor and is selected from a kind of of air entraining agent, waterproof agent, described air entraining agent is selected from one of sodium abietate, sodium alkyl sulfonate, fatty alcohol or two kinds, and described waterproof agent is selected from more than one of fluosilicate, flyash, kieselguhr, asphalt emulsion, rosin.
According to high strength electric pole of the present invention, be preferably, the corrosion inhibitor of described concrete C component comprises solid content, 0-5 part (weight) additive and 30-45 part (weight) water of 100 parts of (weight) portland cements, 0.3-3 part (weight) hydroxycarboxylic acid, 0.3-3 part (weight) saccharide, 2-10 part (weight) polymer emulsion.
Retarding agent can delay the concrete coagulation firm time, is convenient to construction; The concrete mortar hydration rate is slowed down, prolong the hydration heat process, help the control of concrete in mass temperature.Retarding agent can decrease to concrete 1～3d early strength, but to the normal development did not influence of later strength.As tartaric acid, gypsum, winestone potassium sodium etc.
Early strength admixture is meant and can improves early age strength of concrete, and the Admixture that later strength is not made significant difference.The main effect of early strength admixture is the accelerate concrete hydration rate, promotes the development of early strength on the coagulation; Both had powerful early, the Admixture that has certain diminishing enhancing function again is called early strength water-reducing agent.As multiple early-strength Admixtures such as villaumite, nitrite, chromate and sulfate, and organic matter early strength admixture, as triethanolamine, calcium formate, urea etc.
Accelerating admixture is to mix the Admixture that can make the rapid setting and harden of concrete in the concrete.Its main component is that aluminum oxide clinker (being the grog that bauxite, soda ash, quicklime are fired in proportion) is made through levigate.Their effect is the hydration and hardening of accelerate concrete, forms enough intensity in a short period of time, to reach the purpose of concrete rapid condensation in repairing or the roadway.
Water reducing agent claims fluidizer or dispersing agent again.Add an amount of water reducing agent when mixing and stirring concrete, cement granules is uniformly dispersed, the moisture content with the cement granules parcel discharges simultaneously, thereby can obviously reduce the concrete water amount.The effect of water reducing agent is to keep improving its workability under the constant situation of concrete mix; Or, improve concrete strength keeping reducing water supply volume under the constant situation of workability; Or when keeping intensity constant, reduce cement consumption, and save cement, reduce cost.Simultaneously, concrete is more evenly closely knit behind the adding water reducing agent, improves a series of physical and chemical performances, as impermeability, frost resistance, corrosion resistance etc., has improved concrete durability.As ordinary water-reducing agents such as calcium lignosulfonate, molasses, high efficiency water reducing agent, early strength water-reducing agent, retarding water reducer, bleed type water reducing agent etc.
Air entraining agent is a kind of surface reactive material, is one of concrete Admixture commonly used, and it can make concrete introduce a large amount of evenly minute bubbles of sealing in whipping process from atmosphere, makes and contains air in certain amount in the concrete.The bubble that good air entraining agent can be introduced in the concrete reaches 1,000,000,000 more than, the aperture mostly is 0.05～0.2mm, it is spherical to be generally discontinuous sealing, be evenly distributed, good stability, can significantly improve concrete frost resistance, durability (the inner concrete antifreezing of Three Gorges Projects melts cycle-index and reaches more than 150 times, and outside concrete reaches more than 300 times) like this; Simultaneously can also improve concrete workability, particularly artificial aggregate or particles of natural sand is thick, grating is relatively poor and in the poor-water cement concrete result of use better; Improve concrete bleeding and segregation; Reduce concrete permeability, improve the concrete resistant to chemical etching ability.As sodium abietate, sodium alkyl sulfonate, fatty alcohol etc.
Accelerating admixture is common aluminum oxide clinker (main component is a sodium aluminate), more can use aluminum oxide clinker (main component is sodium aluminate), sodium carbonate, quicklime in the formulated powder of 1: 1: 0.5 ratio of quality.
Waterproof agent is a kind of chemical admixture, is added in the concrete, and when concrete coagulation hardened, volume expansion thereupon played compensate for shrinkage and tension reinforcing steel bar and produces prestressing force and abundant fill concrete gap.As fluosilicate, flyash, kieselguhr, asphalt emulsion, rosin.
According to high strength electric pole of the present invention, described high strength electric pole has high resiliency, high extensibility; Resistance to wear, the high compressive strength height, antifatigue, erosion-resisting characteristics are good; Anti-aging, resistance to chemical attack, weather resistance effect, curing molding only need 2-3 hour; High/low temperature holding capacity is big.In addition, this electric pole lighter weight is saved the steel use amount, has reduced cost of production.The present invention is specially adapted to disasters such as the earthquake occasion that takes place frequently.
Description of drawings
Fig. 1 is the structural representation of high strength electric pole of the present invention;
Fig. 2 is the root arrangement of reinforcement sectional drawing of high strength electric pole shown in Figure 1;
Fig. 3 is that the reinforcing bar of high strength electric pole shown in Figure 1 launches schematic diagram.
The specific embodiment
Below, for a more detailed description to the present invention in conjunction with the accompanying drawings with embodiment.Present embodiment only is the description to best mode for carrying out the invention, scope of the present invention is not had any restriction.
Shown in Fig. 1,2 and 3, high strength electric pole of the present invention includes reinforcing bar, liner stirrup 2 and concrete, described reinforcing bar is divided into straight reinforcing bar of longitudinal stress and spiral reinforcement 3, spiral reinforcement 3 is axially perpendicular to ground, the straight reinforcing bar of described longitudinal stress comprises spaced apart prestressing force master muscle 1 and nonprestressed reinforcement 4, is preferably to adopt evenly to arrange at interval.
According to present embodiment, described prestressing force master muscle 1 and nonprestressed reinforcement 4 are between spiral reinforcement 3 and liner stirrup 2, the diameter of described prestressing force master muscle 1 is littler than the diameter of described nonprestressed reinforcement 4, and the length of described prestressing force master muscle 1 is longer than the length of described nonprestressed reinforcement 4.Owing to adopt different-diameter and length, just can save the steel material of use, also alleviated the weight of electric pole simultaneously, reduced cost of production.
Be to put into earlier liner stirrup 2, spiral reinforcement 3, prestressing force master muscle 1 and nonprestressed reinforcement 4 in mould during production, with pouring into a mould on the coagulation, the demoulding becomes the high strength electric pole again after prestressing force master muscle 1 and nonprestressed reinforcement 4 hybrid reinforcements.
According to present embodiment, described concrete can adopt elastic concrete, it by weight percentage, comprise A, B, three kinds of components of C, wherein the A component comprises 90～100% PIC and 0～10% additive, the B component comprises 90～96% castor oil and 4～10% additive, and the C component comprises 50% grating quartz sand and 50% additive, and the ratio of described A, B, C component is 1: 1: 12.
In the present embodiment, the additive in the described concrete A component is the tartaric acid that is selected from retarding agent.
In addition, the additive in the described concrete B component is for being selected from a kind of of ordinary water-reducing agent and air entraining agent, and described water reducing agent is selected from calcium lignosulfonate, and described air entraining agent is selected from sodium alkyl sulfonate.
Additive in the described concrete C component comprises the optional air entraining agent of solid content, 1-5 part and 30-40 part water of 100 parts of (by weight) portland cements, 1-3 part (by weight) hydroxycarboxylic acid, 2-3 part saccharide, 2-6 part polymer emulsion, and all parts all are by weight calculation.Described air entraining agent is selected from sodium abietate, and described waterproof agent is selected from kieselguhr.
So not only can improve the crack resistance and the tensile strength of electric pole more, and make described high strength electric pole have high resiliency, high tenacity, high extensibility; The compressive strength height, antifatigue, erosion-resisting characteristics are good; Anti-aging, resistance to chemical attack, weather resistance effect, curing molding only need 2-3 hour, high/low temperature holding capacity big.In addition, this electric pole lighter weight is saved the steel use amount, has reduced cost of production.
As a further improvement on the present invention, described nonprestressed reinforcement 4 has two or more different lengths.As shown in Figure 3, described nonprestressed reinforcement has four kinds of different lengths, and icon 4 to 7 expressions are arranged respectively, and its length is respectively 12m, 9m, 6m and 3m, and its distribution of lengths is successively decreased to root from the head of the mast.When guaranteeing that electric pole has good crack resistance and tensile strength, also can save the steel material of use like this, alleviate the weight of electric pole.
Further improve as of the present invention, the diameter of described prestressing force master muscle 1 is 8-10mm again, and the diameter of described nonprestressed reinforcement 4 is 12-18mm.
As another step improvement of the present invention, described liner stirrup 2 adopts the arc weldings welding with nonprestressed reinforcement 4.
As another again step improvement of the present invention, the two ends of described high strength electric pole are provided with top structure steel plate ring 5 and root configurations steel plate ring 6.Described root configurations steel plate ring 6 adopts the arc welding welding with nonprestressed reinforcement 4.To improve the anticorrosive and anti-acid rain ability of electric pole, can prolong the application life of electric pole.
Except following difference, other make electric pole of the present invention as embodiment 1.
Described concrete is an elastic concrete, it by weight percentage, comprise three kinds of components of A, B and C, wherein the A component comprises 75% PIC and 25% additive, the B component comprises 80% castor oil and 20% compound additive, the C component comprises 60% grating quartz sand and 40% additive, and the ratio of described A, B, C component is 1: 1: 16.
Additive in the described concrete A component is early strength admixture 50% and accelerating admixture 50%, described early strength admixture be selected from villaumite and nitrite each 50%, described accelerating admixture is an aluminum oxide clinker.
Additive in the described concrete B component is ordinary water-reducing agent 20% and air entraining agent 80%, and described water reducing agent is selected from calcium lignosulfonate, and described air entraining agent is selected from a kind of of sodium abietate, sodium alkyl sulfonate, fatty alcohol.
In the present embodiment, additive in the described concrete C component comprises the optional waterproof agent of solid content, 1-5 part and the optional air entraining agent of 1-5 part and 30-45 part water of 100 parts of (by weight) portland cements, 0.3-2 part (by weight) hydroxycarboxylic acid, 0.3-1.5 part saccharide, 5-10 part polymer emulsion, and all parts all are by weight calculation.Described air entraining agent is selected from sodium abietate, and described waterproof agent is selected from kieselguhr.
Described air entraining agent is selected from a kind of of sodium abietate, sodium alkyl sulfonate, fatty alcohol, and described waterproof agent is selected from a kind of of fluosilicate, flyash, kieselguhr, asphalt emulsion, rosin.
According to high strength electric pole of the present invention, described high strength electric pole has high resiliency, high extensibility, resistance to wears, the high compressive strength height, and antifatigue, erosion-resisting characteristics are good; Anti-aging, resistance to chemical attack, weather resistance effect, curing molding only need 2-3 hour, high/low temperature holding capacity big, wait the high-quality high-tech building function material of good characteristic.In addition, this electric pole lighter weight is saved the steel use amount, has reduced cost of production.The present invention is specially adapted to disasters such as the earthquake occasion that takes place frequently.
Claims (10)
1. high strength electric pole, it includes reinforcing bar, liner stirrup (2) and concrete, described reinforcing bar is divided into straight reinforcing bar of longitudinal stress and spiral reinforcement (3), the straight reinforcing bar of described longitudinal stress comprises spaced apart prestressing force master muscle (1) and nonprestressed reinforcement (4), described prestressing force master muscle (1) and nonprestressed reinforcement (4) are positioned between spiral reinforcement (3) and the liner stirrup (2), it is characterized in that: the diameter of described prestressing force master muscle (1) is littler than the diameter of described nonprestressed reinforcement (4), and the length of described prestressing force master muscle (1) is longer than the length of described nonprestressed reinforcement (4).
2. high strength electric pole according to claim 1, it is characterized in that, described concrete is an elastic concrete, it by weight percentage, comprise three kinds of components of A, B and C, wherein the A component comprises 75～100% PIC and 0～25% additive, and the B component comprises 80～96% castor oil and 4～20% additive, the C component comprises 50～70% grating quartz sand and 30～50% additive, and the ratio of described A, B, C component is 1: 1-2: 10～16.
3. high strength electric pole according to claim 1 is characterized in that, described nonprestressed reinforcement (4) has two or more different lengths.
4. high strength electric pole according to claim 1 is characterized in that: the diameter of described prestressing force master muscle (1) is 8-10mm, and the diameter of described nonprestressed reinforcement (4) is 12-18mm.
5. high strength electric pole according to claim 1 is characterized in that: described liner stirrup (2), described root configurations steel plate ring (6) adopt the arc welding welding respectively with nonprestressed reinforcement (4).
6. high strength electric pole according to claim 1 is characterized in that: the two ends of described high strength electric pole are provided with top structure steel plate ring (5) and root configurations steel plate ring (6).
7. high strength electric pole according to claim 2, it is characterized in that, additive in the described concrete A component is for being selected from a kind of of retarding agent, early strength admixture and accelerating admixture, described retarding agent is selected from tartaric acid, gypsum, winestone potassium sodium one or two kind, described early strength admixture be selected from villaumite, nitrite, chromate and sulfate one or two kind, described accelerating admixture is an aluminum oxide clinker.
8. high strength electric pole according to claim 2, it is characterized in that, additive in the described concrete B component is for being selected from a kind of of ordinary water-reducing agent and air entraining agent, described water reducing agent is selected from calcium lignosulfonate and/or molasses, and described air entraining agent is selected from one of sodium abietate, sodium alkyl sulfonate, fatty alcohol or two kinds.
9. high strength electric pole according to claim 2, it is characterized in that, additive in the described concrete C component is corrosion inhibitor and is selected from a kind of of air entraining agent, waterproof agent, described air entraining agent is selected from one of sodium abietate, sodium alkyl sulfonate, fatty alcohol or two kinds, and described waterproof agent is selected from more than one of fluosilicate, flyash, kieselguhr, asphalt emulsion, rosin.
10. high strength electric pole according to claim 9 is characterized in that: the corrosion inhibitor of described concrete C component comprises 100 parts of (weight) portland cements, 0.3-3 part (weight) hydroxycarboxylic acid, 0.3-3 part (weight) saccharide, 2-10 part (weight) polymer emulsion, 0-5 part (weight) air entraining agent, 0-5 part (weight) waterproof agent and 30-45 part (weight) water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010270177 CN101915006A (en) | 2010-08-31 | 2010-08-31 | High-strength electric pole |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010270177 CN101915006A (en) | 2010-08-31 | 2010-08-31 | High-strength electric pole |
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| CN101915006A true CN101915006A (en) | 2010-12-15 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528924A (en) * | 2011-12-27 | 2012-07-04 | 上海电力器材有限公司 | High-strength annular partially prestressed concrete pole and production method thereof |
| CN102966256A (en) * | 2012-10-31 | 2013-03-13 | 中国石油化工股份有限公司 | Manufacturing method of anti-corrosion large-bending moment concrete telegraph pole along sea beach area |
| CN104400900A (en) * | 2014-10-27 | 2015-03-11 | 无为恒基商品混凝土有限公司 | Method for fabricating high-performance precast concrete |
| CN105256791A (en) * | 2015-11-18 | 2016-01-20 | 黄贺明 | Concrete tubular pile for oceans |
| CN106272954A (en) * | 2016-08-22 | 2017-01-04 | 福建坚石水泥制品有限公司 | One parts a little draws reinforced concrete pole processing technology |
| CN108640596A (en) * | 2018-04-09 | 2018-10-12 | 福州市鸿生建材有限公司 | A kind of high intensity water-tight concrete and preparation method thereof |
| CN110744701A (en) * | 2019-10-30 | 2020-02-04 | 广西大学 | Manufacturing method of CFRP bar recycled concrete pole |
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| CN1041807A (en) * | 1989-09-02 | 1990-05-02 | 江西省电力设计院 | Partially prestressed electric wire pole with equal diameter |
| CN200943329Y (en) * | 2006-08-30 | 2007-09-05 | 林兴 | High intensity prestressed concrete pole |
| CN200952256Y (en) * | 2006-09-29 | 2007-09-26 | 上海电力线路器材有限公司 | Large-bending moment high-strength concrete electrical pole |
| JP2008101325A (en) * | 2006-10-17 | 2008-05-01 | Tokyo Electric Power Co Inc:The | Connected concrete column |
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| CN1041807A (en) * | 1989-09-02 | 1990-05-02 | 江西省电力设计院 | Partially prestressed electric wire pole with equal diameter |
| CN200943329Y (en) * | 2006-08-30 | 2007-09-05 | 林兴 | High intensity prestressed concrete pole |
| CN200952256Y (en) * | 2006-09-29 | 2007-09-26 | 上海电力线路器材有限公司 | Large-bending moment high-strength concrete electrical pole |
| JP2008101325A (en) * | 2006-10-17 | 2008-05-01 | Tokyo Electric Power Co Inc:The | Connected concrete column |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528924A (en) * | 2011-12-27 | 2012-07-04 | 上海电力器材有限公司 | High-strength annular partially prestressed concrete pole and production method thereof |
| CN102966256A (en) * | 2012-10-31 | 2013-03-13 | 中国石油化工股份有限公司 | Manufacturing method of anti-corrosion large-bending moment concrete telegraph pole along sea beach area |
| CN104400900A (en) * | 2014-10-27 | 2015-03-11 | 无为恒基商品混凝土有限公司 | Method for fabricating high-performance precast concrete |
| CN105256791A (en) * | 2015-11-18 | 2016-01-20 | 黄贺明 | Concrete tubular pile for oceans |
| CN106272954A (en) * | 2016-08-22 | 2017-01-04 | 福建坚石水泥制品有限公司 | One parts a little draws reinforced concrete pole processing technology |
| CN108640596A (en) * | 2018-04-09 | 2018-10-12 | 福州市鸿生建材有限公司 | A kind of high intensity water-tight concrete and preparation method thereof |
| CN108640596B (en) * | 2018-04-09 | 2022-12-06 | 福建鸿生材料科技股份有限公司 | High-strength impervious concrete and preparation method thereof |
| CN110744701A (en) * | 2019-10-30 | 2020-02-04 | 广西大学 | Manufacturing method of CFRP bar recycled concrete pole |
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