CN1944325A - Method for producing cementitious materials concrete pipe - Google Patents
Method for producing cementitious materials concrete pipe Download PDFInfo
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- CN1944325A CN1944325A CN 200610086853 CN200610086853A CN1944325A CN 1944325 A CN1944325 A CN 1944325A CN 200610086853 CN200610086853 CN 200610086853 CN 200610086853 A CN200610086853 A CN 200610086853A CN 1944325 A CN1944325 A CN 1944325A
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Abstract
The present invention is concretion concrete producing process and uses concretion to replace cement in producing various kinds of water conveying pipe and belongs to the field of concrete product technology. Concretion concrete pipe is produced with concretion in 250-480 kg each cubic meter of concrete, sand and fly ash in 0-50 wt% of concretion, and through the steps of rolling with suspended roller, molding, curing statically in the mold, steam curing in the mold, demolding and natural curing. The concretion concrete pipe has strength up to 80 MPa, seepage resisting pressure up to 2.7 MPa crack resisting pressure up to 3.0 MPa.
Description
Technical field
The present invention replaces with coagulating stone that traditional water is clay makes various water delivery concrete plugs, belongs to the concrete product field.
Background technology
" coagulate stone " is that to wait a kind of of invention be the hydraulic cementing materials that main raw material prepares with the solid waste to professor Sun Henghu of Tsing-Hua University.This gelling material can replace cement to use in many occasions, but with cement no performance is arranged again under many conditions.Chinese patent (application number 02158190) " coagulate stone dualization wet cement and uses thereof " discloses with fixed attention stone " dualization " wet cement and packing thereof, transportation, storage, the use and methods for using them belongs to concrete and cement manufacturing technology field, wherein: coagulate stone " dualization " wet cement and be made up of " cloudy body (main body) " and " positive body " (part), they are that fineness is specific surface area (2800～7500) cm
2The inorganic coagulation material of slurry, lotion or wet-milling shape form/g, that form with a small amount of conditioning agent and with water; Main part is the hygrometric state material producing, pack, transport, storing, use in the whole process of using all the time, and ligand moiety then can be hygrometric state or dry material.During use, " cloudy body " and " positive body " mixing is got final product.Coagulate stone " dualization " wet cement from producing in the whole process of using, produce dust, SO hardly
2, NO
x, CO
2, fundamentally solved the hang-up of the aspects such as pollution, power consumption and cost of traditional Cement industry, help industrial Sustainable development.Its raw material is mainly from all kinds of slags, cinder and natural mineral.Coagulate stone " dualization " wet cement and can be used for replacing traditional cement, and purposes is widely arranged, be used in building, traffic, water conservancy, mine filling, supporting, subgrade strengthening etc. than traditional cement.
CN1415567A discloses with fixed attention stone and production technology thereof and has still improved constantly and improve.This technology can realize " binary dry method " production at present, and promptly the product that is dispatched from the factory can be as cement single-component package or bulk vehicle transportation.Coagulate the concrete purposes that is equipped with made of stones though the CN1415567A patent also discloses to adopt, do not comprise the details of the production technique of cementitious materials concrete pipe.Because the special performance of travertine gelled material, its technology controlling and process in making the concrete plug process and the performance of gained concrete plug also are different from traditional cement concrete.
Summary of the invention
The objective of the invention is to replace traditional portland with travertine gelled material the manufacturing cost of concrete plug is descended significantly, performance significantly improves.Stone employing strength grade is 32.5,42.5 or 52.5 the common stone that coagulates with fixed attention, and consumption is 250～480kg/m
3Concrete.Sand adopts river sand or extra large sand or mountain sand or mine tailing, and fineness modulus 1～3.35, consumption are 400-700kg/m
3Concrete, stone adopts rubble or cobble, and consumption is 900-1200kg/m
3Concrete, the crush index value 10～30 of aggregate, maximum diameter is 0.5～5cm, the principle of choosing the aggregate maximum diameter is: the maximum diameter of aggregate is less than 1/5 of tubing thickness, and water cement ratio is 0.25～0.40.When the mix concrete, also to mix the early-strength type high efficiency water reducing agent according to temperature condition.The volume of water reducer can not mixed water reducer for coagulating 0.1～2.5% of stone weight when mean daily temperature is higher than 20 ℃.The churning time of glued stone concrete is 3～4 minutes.Make cementitious materials concrete pipe except above-mentioned main raw material(s), also use to account for fixed attention that the flyash of stone weight 0～50% replaces stone with fixed attention, not only can reduce cost, also can suppress sticking to mould.But along with the increase of flyash replacement amount, the intensity of cementitious materials concrete pipe also reduces gradually.
" roller-suspending " that extensively adopts in cement concrete tubing manufacturing at present adopted in the moulding of cementitious materials concrete pipe, and the collocation method of reinforcing bar is identical when also producing cement concrete tubing with " roller-suspending ".The glued stone concrete feeding that mixes is fixed with bar frame and the steel die of the rotation of having started shooting.Should be fed to pre-determined thickness continuously during feeding, the rotation of interruption feeding continues feeding again after 1～2 minute and exceeds ring washer 2～3mm until the concrete of compacting, this section time remaining 6～10 minutes.Clean again roller was 2～6 minutes after feeding finished, so that further compacting and produce slick internal surface.When the water cement ratio that is adopted is lower than 0.35,, should account for the water of stone weight 0.1～5% with fixed attention in the internal surface sprinkling in the clean roller stage particularly in the season of extreme arid torrid climate.Suspension rolling machine is 500～900 rev/mins at the rotating speed in feeding stage, and the rotating speed in the clean roller stage is 1000～1400 rev/mins.After overhang roll finished, the cementitious materials concrete pipe of forming should be with mould to rest near the moulding place, and the time of resting is 1～5 hour, and the temperature of resting is not less than 15 ℃.Cementitious materials concrete pipe after resting is with mould to hang in steam-cured pond, and steam-cured temperature is 60～100 ℃, and the time is 9～18 hours.It is 1～2 hour that the process control that heats up is 30～60 ℃, and 60～100 ℃ is 2～5 hours, and 100 ℃ are incubated 4～7 hours.From 100 ℃ of times of reducing to 30 ℃ be 1～5 hour.When being the thin-walled tubule, takes off the tubing of being produced limit (as producing the concrete plug of internal diameter), (as producing the concrete plug of internal diameter) capping when the tubing of being produced is the heavy wall bassoon greater than Φ 1000mm less than Φ 500mm.
Steam curing process is taken off punching block after finishing, and with the wet curing under the natural temperature more than 5 ℃ again of the cementitious materials concrete pipe after the demoulding, maintenance can be used as product in 15～28 days and sells.For north cold area, need take certain insulation measure to carry out wet curing when produce winter, to guarantee that curing temperature is more than 5 ℃.
Description of drawings
Accompanying drawing 1 is the technological process of production figure of cementitious materials concrete pipe.
With reference to accompanying drawing 1, make Framework Of Steel Reinforcement earlier, clear up mould and brushing separant simultaneously, make Framework Of Steel Reinforcement in place then, and carry out die assembling, Framework Of Steel Reinforcement is assembled in the mould.The concrete mix that is mixed with roll-in limit, the back feeding mould that stirs, and, enter stripping process after steam-cured the finishing after die assembling is finished, carry out the wet curing under the natural temperature after the demoulding is finished again through resting behind the clean roller shaping process and steam-cured.
Useful result of the present invention is: (1) is compared with using traditional cement, and the cost of gelling material can descend more than 30%; (2) when the consumption of gelling material was identical, the strength ratio cement concrete tubing of cementitious materials concrete pipe had improved 30-120%; (3) use travertine gelled material to replace cement to make concrete plug, not only cost descends, performance improves, and the production process that also has travertine gelled material itself is more can be sharp more useless, energy-conservation and economize on resources than producing cement, so can promote the development of environmental protection cause and recycling economy.
Embodiment
Embodiment 1
Coagulating stone employing strength grade is the 42.5 common stones that coagulate, and consumption is 300kg/m
3Concrete, flyash adopts second class powered coal ash, and consumption is 150kg/m
3Concrete.Sand adopts river sand, and fineness modulus 2.2, consumption are 600kg/m
3Concrete.Stone adopts rubble, and consumption is 1100kg/m
3Coagulation.The crush index value 18 of aggregate, maximum diameter are 3.8cm, water cement ratio 3.2.The volume of also wanting UNF-5 early-strength type high efficiency water reducing agent when the mix concrete is for coagulating 0.5% of stone weight, and daily mean temperature is 15 ℃.The churning time of glued stone concrete is 3 minutes.
The glued stone concrete feeding that mixes is fixed with bar frame and the steel die of the rotation of having started shooting.Should be fed to pre-determined thickness continuously during feeding, the rotation of interruption feeding continues feeding again after 1 minute and exceeds ring washer 3mm until the concrete of compacting, this section time remaining 8 minutes.Clean again roller was 5 minutes after feeding finished, so that further compacting and produce slick internal surface.Should account for the water of stone weight 0.5% with fixed attention in the internal surface sprinkling in the clean roller stage.Suspension rolling machine is 700 rev/mins at the rotating speed in feeding stage, and the rotating speed in the clean roller stage is 1200 rev/mins.After overhang roll finished, the cementitious materials concrete pipe of forming should be with mould to rest near the moulding place, and the time of resting is 2 hours, and the temperature of resting is 18 ℃.Cementitious materials concrete pipe after resting is with mould to hang in steam-cured pond, and steam-cured temperature is 90 ℃, and it is 9 hours that intensification adds soaking time.It is 2 hours that the process control that heats up is 30～60 ℃, and 60～90 ℃ is 3 hours, and 90 ℃ are incubated 4 hours.From 90 ℃ of times of reducing to 30 ℃ be 3 hours.When the cementitious materials concrete pipe of being produced is of a size of internal diameter Φ 800mm, long 2000mm, wall thickness 48mm.
Steam curing process is taken off punching block after finishing, and with the wet curing under the natural temperature of 18 ℃ of average daily temperatures again of the cementitious materials concrete pipe after the demoulding, maintenance was sold as product after 15 days.
Prepared cementitious materials concrete pipe has following performance:
Table 1 embodiment 1 cementitious materials concrete pipe performance
| Demoulding strength (MPa) | The 15 days intensity of dispatching from the factory (MPa) | 28 days intensity (MPa) | Impervious check | The cracking resistance check | ||
| Pressure (MPa) | The infiltration situation | Pressure (MPa) | The cracking situation | |||
| 45 | 56 | 63 | 2.2 | Do not have | 2.8 | Do not have |
Embodiment 2:
Coagulating stone employing strength grade is the 42.5 common stones that coagulate, and consumption is 400kg/m
3Concrete, flyash adopts second class powered coal ash, and consumption is 50kg/m
3Concrete.Sand adopts extra large sand, and fineness modulus 1.2, consumption are 500kg/m
3Concrete.Stone adopts rubble, and consumption is 1200kg/m
3Concrete.The crush index value 18 of aggregate, maximum diameter are 3.8cm, water cement ratio 2.8.The volume of also wanting UNF-5 early-strength type high efficiency water reducing agent when the mix concrete is for coagulating 1.5% of stone weight, and daily mean temperature is 15 ℃.The churning time of glued stone concrete is 3 minutes.
The glued stone concrete feeding that mixes is fixed with bar frame and the steel die of the rotation of having started shooting.Should be fed to pre-determined thickness continuously during feeding, the rotation of interruption feeding continues feeding again after 1 minute and exceeds ring washer 3mm until the concrete of compacting, this section time remaining 8 minutes.Clean again roller was 5 minutes after feeding finished, so that further compacting and produce slick internal surface.Should account for the water of stone weight 0.5% with fixed attention in the internal surface sprinkling in the clean roller stage.Suspension rolling machine is 700 rev/mins at the rotating speed in feeding stage, and the rotating speed in the clean roller stage is 1200 rev/mins.After overhang roll finished, the cementitious materials concrete pipe of forming should be with mould to rest near the moulding place, and the time of resting is 2 hours, and the temperature of resting is 18 ℃.Cementitious materials concrete pipe after resting is with mould to hang in steam-cured pond, and steam-cured temperature is 90 ℃, and it is 13 hours that intensification adds soaking time.It is 3 hours that the process control that heats up is 30～60 ℃, and 60～90 ℃ is 4 hours, and 90 ℃ are incubated 6 hours.From 90 ℃ of times of reducing to 30 ℃ be 3 hours.When the cementitious materials concrete pipe of being produced is of a size of internal diameter Φ 800mm, long 2000mm, wall thickness 48mm.
Steam curing process is taken off punching block after finishing, and with the wet curing under the natural temperature of 18 ℃ of average daily temperatures again of the cementitious materials concrete pipe after the demoulding, maintenance was sold as product after 15 days.
Prepared cementitious materials concrete pipe has following performance:
Table 2 embodiment 2 cementitious materials concrete pipe performances
| Demoulding strength (MPa) | The 15 days intensity of dispatching from the factory (MPa) | 28 days intensity (MPa) | Impervious check | The cracking resistance check | ||
| Pressure (MPa) | The infiltration situation | Pressure (MPa) | The cracking situation | |||
| 54 | 62 | 69 | 2.5 | Do not have | 2.9 | Do not have |
Embodiment 3:
Coagulating stone employing strength grade is the 32.5 common stones that coagulate, and consumption is 400kg/m
3Concrete, flyash adopts second class powered coal ash, and consumption is 50kg/m
3Concrete.Sand adopts mountain sand, and fineness modulus 2.8, consumption are 700kg/m
3Concrete.Stone adopts ovum, and consumption is 1000kg/m
3Concrete.The crush index value 15 of aggregate, maximum diameter are 5.8cm, water cement ratio 2.8.The volume of also wanting UNF-5 early-strength type high efficiency water reducing agent when the mix concrete is for coagulating 1.5% of stone weight, and daily mean temperature is 12 ℃.The churning time of glued stone concrete is 3 minutes.
The glued stone concrete feeding that mixes is fixed with bar frame and the steel die of the rotation of having started shooting.Should be fed to pre-determined thickness continuously during feeding, the rotation of interruption feeding continues feeding again after 1 minute and exceeds ring washer 3mm until the concrete of compacting, this section time remaining 8 minutes.Clean again roller was 5 minutes after feeding finished, so that further compacting and produce slick internal surface.Should account for the water of stone weight 0.5% with fixed attention in the internal surface sprinkling in the clean roller stage.Suspension rolling machine is 700 rev/mins at the rotating speed in feeding stage, and the rotating speed in the clean roller stage is 1400 rev/mins.After overhang roll finished, the cementitious materials concrete pipe of forming should be with mould to rest near the moulding place, and the time of resting is 2 hours, and the temperature of resting is 16 ℃.Cementitious materials concrete pipe after resting is with mould to hang in steam-cured pond, and steam-cured temperature is 90 ℃, and it is 13 hours that intensification adds soaking time.It is 3 hours that the process control that heats up is 30～60 ℃, and 60～90 ℃ is 4 hours, and 90 ℃ are incubated 6 hours.From 90 ℃ of times of reducing to 30 ℃ be 3 hours.When the cementitious materials concrete pipe of being produced is of a size of internal diameter Φ 600mm, long 2000mm, wall thickness 43mm.
Steam curing process is taken off punching block after finishing, and with the wet curing under the natural temperature of 12 ℃ of average daily temperatures again of the cementitious materials concrete pipe after the demoulding, maintenance was sold as product after 15 days.
Prepared cementitious materials concrete pipe has following performance:
Table 3 embodiment 3 cementitious materials concrete pipe performances
| Demoulding strength (MPa) | The 15 days intensity of dispatching from the factory (MPa) | 28 days intensity (MPa) | Impervious check | The cracking resistance check | ||
| Pressure (MPa) | The infiltration situation | Pressure (MPa) | The cracking situation | |||
| 42 | 53 | 58 | 2.0 | Do not have | 2.3 | Do not have |
Embodiment 4:
Coagulating stone employing strength grade is the 52.5 common stones that coagulate, and consumption is 350kg/m
3Concrete, flyash adopt three grades of fine-ground fly-ashs, and the specific surface area after levigate is 560m
2/ Kg, consumption are 100kg/m
3Concrete.Sand adopts the CHARACTERISTICS OF TAILINGS SAND in magnetite quartzite sections ore deposit, and consumption is 500kg/m
3Concrete, fineness modulus 1.9.Stone adopts rubble, and consumption is 1200kg/m
3Concrete.The crush index value 17 of aggregate, maximum diameter are 3.8cm, water cement ratio 2.8.The volume of also wanting UNF-5 early-strength type high efficiency water reducing agent when the mix concrete is for coagulating 1.5% of stone weight, and daily mean temperature is 13 ℃.The churning time of glued stone concrete is 4 minutes.
The glued stone concrete feeding that mixes is fixed with bar frame and the steel die of the rotation of having started shooting.Should be fed to pre-determined thickness continuously during feeding, the rotation of interruption feeding continues feeding again after 2 minutes and exceeds ring washer 3mm until the concrete of compacting, this section time remaining 6 minutes.Clean again roller was 6 minutes after feeding finished, so that further compacting and produce slick internal surface.Should account for the water of stone weight 0.8% with fixed attention in the internal surface sprinkling in the clean roller stage.Suspension rolling machine is 800 rev/mins at the rotating speed in feeding stage, and the rotating speed in the clean roller stage is 1300 rev/mins.After overhang roll finished, the cementitious materials concrete pipe of forming should be with mould to rest near the moulding place, and the time of resting is 1 hour, and the temperature of resting is 14 ℃.Cementitious materials concrete pipe after resting is with mould to hang in steam-cured pond, and steam-cured temperature is 90 ℃, and it is 15 hours that intensification adds soaking time.It is 3 hours that the process control that heats up is 30～60 ℃, and 60～90 ℃ is 5 hours, and 90 ℃ are incubated 6 hours.From 90 ℃ of times of reducing to 30 ℃ be 3 hours.When the cementitious materials concrete pipe of being produced is of a size of internal diameter Φ 1000mm, long 2000mm, wall thickness 48mm.
Steam curing process is taken off punching block after finishing, and with the wet curing under the natural temperature of 13 ℃ of average daily temperatures again of the cementitious materials concrete pipe after the demoulding, maintenance was sold as product after 15 days.
Prepared cementitious materials concrete pipe has following performance:
Table 4 embodiment 4 cementitious materials concrete pipe performances
| Demoulding strength (MPa) | The 15 days intensity of dispatching from the factory (MPa) | 28 days intensity (MPa) | Impervious check | The cracking resistance check | ||
| Pressure (MPa) | The infiltration situation | Pressure (MPa) | The cracking situation | |||
| 64 | 72 | 86 | 2.7 | Do not have | 3.0 | Do not have |
Claims (6)
1, a kind of manufacture method of cementitious materials concrete pipe is characterized in that it is 32.5,42.5 or 52.5 the common stone that coagulates that stone with fixed attention adopts strength grade, and consumption is 250～480kg/m
3Concrete.Sand adopts river sand or extra large sand or mountain sand or mine tailing, and fineness modulus 1～3.35, consumption are 500-700kg/m
3Concrete.Stone adopts rubble or cobble, and consumption is 900-1200kg/m
3Concrete.The crush index value 10～30 of aggregate, maximum diameter is 0.5～5cm, the principle of choosing the aggregate maximum diameter is: the maximum diameter of aggregate is less than 1/5 of tubing thickness, and water cement ratio is 0.25～0.40.When the mix concrete, also to mix the early-strength type high efficiency water reducing agent according to temperature condition.The volume of water reducer can not mixed water reducer for coagulating 0.1～2.5% of stone weight when mean daily temperature is higher than 20 ℃.The churning time of glued stone concrete is 3～4 minutes.Make cementitious materials concrete pipe except above-mentioned main raw material(s), also use to account for fixed attention that the flyash of stone weight 0～50% replaces stone with fixed attention.
2, the manufacture method of a kind of cementitious materials concrete pipe as claimed in claim 1, " roller-suspending " that extensively adopts in cement concrete tubing manufacturing at present adopted in the moulding that it is characterized in that cementitious materials concrete pipe, and the collocation method of reinforcing bar is identical when also producing cement concrete tubing with " roller-suspending ".
3, the manufacture method of a kind of cementitious materials concrete pipe as claimed in claim 1 is characterized in that the glued stone concrete feeding that will mix is fixed with bar frame and the steel die of the rotation of having started shooting.Should be fed to pre-determined thickness continuously during feeding, the rotation of interruption feeding continues feeding again after 1～2 minute and exceeds ring washer 2～3mm until the concrete of compacting, this section time remaining 6～10 minutes.Clean again roller was 2～6 minutes after feeding finished, so that further compacting and produce slick internal surface.When the water cement ratio that is adopted is lower than 0.35,, should account for the water of stone weight 0.1～5% with fixed attention in the internal surface sprinkling in the clean roller stage particularly in the season of extreme arid torrid climate.Suspension rolling machine is 500～900 rev/mins at the rotating speed in feeding stage, and the rotating speed in the clean roller stage is 1000～1400 rev/mins.
4, the manufacture method of a kind of cementitious materials concrete pipe as claimed in claim 1, after it is characterized in that overhang roll finishes, the cementitious materials concrete pipe of forming should be with mould to rest near the moulding place, and the time of resting is 1～5 hour, and the temperature of resting is not less than 15 ℃.Cementitious materials concrete pipe after resting is with mould to hang in steam-cured pond, and steam-cured temperature is 60～100 ℃, and the time is 9～18 hours.It is 1～2 hour that the process control that heats up is 30～60 ℃, and 60～100 ℃ is 2～5 hours, and 100 ℃ are incubated 4～7 hours.From 100 ℃ of times of reducing to 30 ℃ be 1～5 hour.When being the thin-walled tubule, takes off the tubing of being produced limit (as producing the concrete plug of internal diameter), (as producing the concrete plug of internal diameter) capping when the tubing of being produced is the heavy wall bassoon greater than Φ 1000mm less than Φ 500mm.
5, the manufacture method of a kind of cementitious materials concrete pipe as claimed in claim 1, it is characterized in that taking off punching block after steam curing process finishes, with the wet curing under the natural temperature more than 5 ℃ again of the cementitious materials concrete pipe after the demoulding, maintenance can be used as product in 15～28 days and sells, for north cold area, need take certain insulation measure to carry out wet curing when produce winter, to guarantee that curing temperature is more than 5 ℃.
6, the manufacture method of a kind of cementitious materials concrete pipe as claimed in claim 1, the technological process of production that it is characterized in that cementitious materials concrete pipe is: make Framework Of Steel Reinforcement earlier, clear up mould and brushing separant simultaneously, make Framework Of Steel Reinforcement in place then, and carry out die assembling, Framework Of Steel Reinforcement is assembled in the mould.After die assembling is finished, concrete mix is stirred, rest with steam-cured behind the clean roller shaping process of limit roll-in limit feeding mould, and process then, enter stripping process after steam-cured the finishing, carry out the wet curing under the natural temperature after the demoulding is finished again.Carry out inspection after construction and stockyard at last.
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| CN 200610086853 CN1944325A (en) | 2006-06-21 | 2006-06-21 | Method for producing cementitious materials concrete pipe |
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|---|---|---|---|
| CN 200610086853 CN1944325A (en) | 2006-06-21 | 2006-06-21 | Method for producing cementitious materials concrete pipe |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559621B (en) * | 2008-04-18 | 2011-01-12 | 朝阳市天龙大型水泥管道（集团）有限公司 | Roller-suspending method for producing large-diameter concrete pipes |
| CN101456707B (en) * | 2008-12-30 | 2011-04-20 | 北京科技大学 | Fiber reinforcement fine aggregate glued stone concrete light partition board and method for producing the same |
| CN101717231B (en) * | 2009-08-18 | 2012-03-21 | 四川省富侨工业有限公司 | High-strength concrete, pipeline prepared by high-strength concrete and method for preparing pipeline |
| CN103358387A (en) * | 2012-09-25 | 2013-10-23 | 苏州混凝土水泥制品研究院有限公司 | Production technology of anti-corrosion prefabricated reinforced concrete inspection well |
| CN105236843A (en) * | 2015-08-24 | 2016-01-13 | 安徽砼宇特构科技有限公司 | Antibacterial underground pipe culvert and preparation method thereof |
| CN105753413A (en) * | 2016-03-09 | 2016-07-13 | 赤峰京环节能建材制造有限公司 | Method using solid wastes to produce concrete culvert pipe of city comprehensive pipe rack |
| CN106363796A (en) * | 2016-11-15 | 2017-02-01 | 山东电力管道工程公司 | Vertical type flow-line forming method for PCCP cores |
| CN108439857A (en) * | 2018-05-11 | 2018-08-24 | 安徽砼宇特构科技有限公司 | A kind of concrete plug and preparation method thereof |
| CN109455993A (en) * | 2018-10-26 | 2019-03-12 | 李成道 | A kind of preparation method of glued stone concrete exterior wall |
-
2006
- 2006-06-21 CN CN 200610086853 patent/CN1944325A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559621B (en) * | 2008-04-18 | 2011-01-12 | 朝阳市天龙大型水泥管道（集团）有限公司 | Roller-suspending method for producing large-diameter concrete pipes |
| CN101456707B (en) * | 2008-12-30 | 2011-04-20 | 北京科技大学 | Fiber reinforcement fine aggregate glued stone concrete light partition board and method for producing the same |
| CN101717231B (en) * | 2009-08-18 | 2012-03-21 | 四川省富侨工业有限公司 | High-strength concrete, pipeline prepared by high-strength concrete and method for preparing pipeline |
| CN103358387A (en) * | 2012-09-25 | 2013-10-23 | 苏州混凝土水泥制品研究院有限公司 | Production technology of anti-corrosion prefabricated reinforced concrete inspection well |
| CN105236843A (en) * | 2015-08-24 | 2016-01-13 | 安徽砼宇特构科技有限公司 | Antibacterial underground pipe culvert and preparation method thereof |
| CN105753413A (en) * | 2016-03-09 | 2016-07-13 | 赤峰京环节能建材制造有限公司 | Method using solid wastes to produce concrete culvert pipe of city comprehensive pipe rack |
| CN106363796A (en) * | 2016-11-15 | 2017-02-01 | 山东电力管道工程公司 | Vertical type flow-line forming method for PCCP cores |
| CN108439857A (en) * | 2018-05-11 | 2018-08-24 | 安徽砼宇特构科技有限公司 | A kind of concrete plug and preparation method thereof |
| CN109455993A (en) * | 2018-10-26 | 2019-03-12 | 李成道 | A kind of preparation method of glued stone concrete exterior wall |
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