CN106045430A - Cementing material for PCCP (prestressed concrete cylinder pipe) injecting mortar layer and production method of cementing material - Google Patents
Cementing material for PCCP (prestressed concrete cylinder pipe) injecting mortar layer and production method of cementing material Download PDFInfo
- Publication number
- CN106045430A CN106045430A CN201610400460.2A CN201610400460A CN106045430A CN 106045430 A CN106045430 A CN 106045430A CN 201610400460 A CN201610400460 A CN 201610400460A CN 106045430 A CN106045430 A CN 106045430A
- Authority
- CN
- China
- Prior art keywords
- parts
- screed
- binder materials
- pipe inspection
- reducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
- C04B2111/00706—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like around pipelines or the like
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/56—Compositions suited for fabrication of pipes, e.g. by centrifugal casting, or for coating concrete pipes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention relates to the technical field of a cementing material for a mortar layer and provides a cementing material for a PCCP (prestressed concrete cylinder pipe) injecting mortar layer and a production method of the cementing material. The cementing material comprises raw materials in parts by weight as follows: 850-900 parts of 42.5-grade rapid-hardening sulphoaluminate cement, 100-150 parts of silica fume, 4-12 parts of a polycarboxylate superplasticizer, 0.9-3 parts of polyethylene oxide powder and 0.2-1 part of graphene oxide. According to the cementing material for preparation of nonsilicate cement mortar, an organic outer protection layer adopted in the prior art is omitted, the technology is simplified, and the efficiency is improved; besides, the anti-erosion capability of the mortar layer is improved greatly, so that safety of steel cylinders and prestressed wires is guaranteed, corrosion of the steel cylinders and the prestressed wires is avoided, the cost of pipelines is reduced effectively, and powerful guarantee is provided for economic efficiency of engineering.
Description
Technical field
The present invention relates to the field of cementing material technology of screed, be a kind of PCCP pipe inspection screed Binder Materials and
Its production method.
Background technology
Existing PCCP pipe refers to be wound around ring orientation prestress steel wire on the high-strength concrete tube core with steel cylinder, then sprays thereon
Cement mortar protective course that system is fine and close and the water-supply-pipe made, it is be made up of sheet metal, high tensile steel wire and concrete compound
Tubing, it fully and has synthetically played the tension of steel, easily sealing and the resistance to compression of concrete, decay resistance, has had height
The characteristic that sealing, high intensity and height are impervious, what in traditional production, anti-erosion for pipeline was taked is " three oily two cloth "
Mode, this mode can not ensure the anticorrosive coat in cement mortar protective course and pipeline same life-span, and its cost is the most relatively expensive.
Summary of the invention
The invention provides Binder Materials and the production method thereof of a kind of PCCP pipe inspection screed, overcome above-mentioned existing
The deficiency of technology, it can effectively solve, and prior art PCCP pipe inspection screed anticorrosive property is strong and more expensive the asking of cost
Topic.
One of technical scheme is realized by following measures: the gelling of a kind of PCCP pipe inspection screed
Material, raw materials by weight portion includes 42.5 quick hardening sulphoaluminate cement 850 parts to 900 parts, silicon ash 100 parts to 150 parts, poly-carboxylic
Acid water reducer 4 parts to 12 parts, 0.9 part to 3 parts of polyethylene glycol oxide powder, graphene oxide 0.2 part to 1 part.
Further optimization and/or improvements to foregoing invention technical scheme one of are presented herein below:
Above-mentioned Binder Materials obtains as follows: the first step, polycarboxylate water-reducer and graphene oxide is mixed, and uses
Ultrasound wave disperses 1 hour to 2 hours to form graphene oxide and the intercalated compound of polycarboxylate water-reducer；Second step, the company of use
Continuous mixer tentatively mixes, and by 42.5 quick hardening sulphoaluminate cements, silicon ash and polyethylene glycol oxide powder, puts into material successively
Conveying is stirred behind premixing storehouse, and the graphene oxide first step obtained and the intercalated compound of polycarboxylate water-reducer use
Atomizer is atomized into granule, is then sprayed into top, premixing storehouse, utilizes freely falling body principle to make liquid be evenly affixed to powder body
Obtaining mixture after particle surface, the atomized spray time is 5 minutes to 7 minutes；3rd step, through the mixture that being mixed to get from
Drop down onto bottom premixing storehouse on centrifugal rotation dispersion impeller, make mixture pass through its edge, small hole at bottom part random point be sprinkled upon cylinder
In shape warehouse, after completing second step mixing, obtain powder body；4th, the powder body that the 3rd step obtains under gravity, through bent road
Baffling blends component water conservancy diversion, is finally discharged by outlet at bottom, i.e. obtains the Binder Materials of PCCP pipe inspection screed of the present invention.
The above-mentioned Mixing Machine using 3KW in second step during stirring, the most tentatively stirs mixing 5 points in premixing storehouse
Clock was to 7 minutes.
The intercalated compound of above-mentioned graphene oxide and polycarboxylate water-reducer uses atomizer to be atomized into 10 microns to 50
The atomizing particle of micron.
Above-mentioned centrifugal rotation dispersion impeller uses the rotating machinery of 1KW, forms the rotating speed of 1200 revs/min.
The two of technical scheme are realized by following measures: the gelling of a kind of PCCP pipe inspection screed
The production method of material is carried out in the steps below: the first step, polycarboxylate water-reducer and graphene oxide is mixed, and uses super
Sound wave disperses 1 hour to 2 hours to form graphene oxide and the intercalated compound of polycarboxylate water-reducer；Second step, uses continuously
Mixer tentatively mixes, and by 42.5 quick hardening sulphoaluminate cements, silicon ash and polyethylene glycol oxide powder, puts into material successively defeated
Being stirred after sending premixing storehouse, the graphene oxide first step obtained and the intercalated compound of polycarboxylate water-reducer use mist
Change shower nozzle and be atomized into granule, be then sprayed into top, premixing storehouse, utilize freely falling body principle to make liquid be evenly affixed to powder body
Grain obtains mixture behind surface, and the atomized spray time is 5 minutes to 7 minutes；3rd step, passes through the mixture being mixed to get from advance
Drop down onto bottom mixing bunker on centrifugal rotation dispersion impeller, make mixture pass through its edge, small hole at bottom part random point be sprinkled upon cylinder
In warehouse, after completing second step mixing, obtain powder body；4th, the powder body that the 3rd step obtains under gravity, is rolled over through bent road
Stream blends component water conservancy diversion, is finally discharged by outlet at bottom, i.e. obtains the Binder Materials of PCCP pipe inspection screed of the present invention.
Be presented herein below to foregoing invention technical scheme two further optimization and/or improvements:
The above-mentioned Mixing Machine using 3KW in second step during stirring, the most tentatively stirs in premixing storehouse and mixes 5 minutes extremely
7 minutes.
The intercalated compound of above-mentioned graphene oxide and polycarboxylate water-reducer uses atomizer to be atomized into 10 microns to 50
The atomizing particle of micron.
Above-mentioned centrifugal rotation dispersion impeller uses the rotating machinery of 1KW, forms the rotating speed of 1200 revs/min.
The non-silicate cement mortar that the Binder Materials that the present invention uses is prepared, present invention eliminates original technology and is adopted
Use organic external protection, simplify technique, improve efficiency；On the other hand drastically increase again the anti-of screed itself to invade
Erosion ability, also ensure that the safety of steel cylinder and compressor wire, it is to avoid steel cylinder and compressor wire are corroded, and effectively
Ground reduces the cost of pipeline, and economical for engineering provides sound assurance.
Detailed description of the invention
Embodiment 1, the Binder Materials of this PCCP pipe inspection screed, raw materials by weight portion includes 42.5 fast hard sulfur aluminic acids
Salt cement 850 parts to 900 parts, silicon ash 100 parts to 150 parts, polycarboxylate water-reducer 4 parts to 12 parts, 0.9 part of polyethylene glycol oxide powder
To 3 parts, graphene oxide 0.2 part to 1 part.
Embodiment 2, the Binder Materials of this PCCP pipe inspection screed, raw materials by weight portion includes 42.5 fast hard sulfur aluminic acids
Salt cement 850 parts or 900 parts, silicon ash 100 parts or 150 parts, polycarboxylate water-reducer 4 parts or 12 parts, 0.9 part of polyethylene glycol oxide powder
Or 3 parts, graphene oxide 0.2 part or 1 part.
Embodiment 3, the Binder Materials of this PCCP pipe inspection screed is obtained by following preparation method: the first step, by poly-carboxylic
Acid water reducer and graphene oxide mix, and use ultrasound wave to disperse 1 hour to 2 hours to form graphene oxide and polycarboxylic acids
The intercalated compound of water reducer；Second step, use continuous mixer tentatively mix, by 42.5 quick hardening sulphoaluminate cements,
Silicon ash and polyethylene glycol oxide powder, be stirred after putting into material conveying premixing storehouse successively, the oxidation stone first step obtained
The intercalated compound of ink alkene and polycarboxylate water-reducer uses atomizer to be atomized into granule, is then sprayed into top, premixing storehouse, profit
Make liquid after being evenly affixed to powder granule surface, obtain mixture by freely falling body principle, the atomized spray time be 5 minutes to 7
Minute；3rd step, drops down onto centrifugal rotation dispersion impeller bottom premixing storehouse through the mixture being mixed to get, and makes mixture lead to
Cross its edge, random the dividing of small hole at bottom part is sprinkled upon in cylindrical warehouse, obtains powder body after completing second step mixing；4th, the 3rd
Under gravity, through bent road, baffling blends component water conservancy diversion to the powder body that step obtains, and is finally discharged by outlet at bottom, i.e. obtains this
The Binder Materials of invention PCCP pipe inspection screed.
Embodiment 4, as the optimization of above-described embodiment, uses the Mixing Machine of 3KW, at premix in second step during stirring
Close storehouse and the most tentatively stir mixing 5 minutes to 7 minutes.
Embodiment 5, the intercalated compound as the optimization of above-described embodiment, graphene oxide and polycarboxylate water-reducer uses
Atomizer is atomized into the atomizing particle of 10 microns to 50 microns.
Embodiment 6, as the optimization of above-described embodiment, centrifugal rotation dispersion impeller uses the rotating machinery of 1KW, forms 1200
Rev/min rotating speed.
Embodiment 7, the Binder Materials of this PCCP pipe inspection screed, raw materials by weight portion includes 42.5 fast hard sulfur aluminic acids
Salt cement 850 parts, silicon ash 100 parts, polycarboxylate water-reducer 4 parts, 0.9 part of polyethylene glycol oxide powder, graphene oxide 0.2 part.Make
During the Binder Materials of the PCCP pipe inspection screed obtained by embodiment 7, add the water of Binder Materials gross mass part 0.4 times.
Embodiment 8, the Binder Materials of this PCCP pipe inspection screed, raw materials by weight portion includes 42.5 fast hard sulfur aluminic acids
Salt cement 850 parts, silicon ash 150 parts, polycarboxylate water-reducer 4 parts, 3 parts of polyethylene glycol oxide powder, graphene oxide 0.2 part.Use
During the Binder Materials of the PCCP pipe inspection screed that embodiment 8 obtains, add the water of Binder Materials gross mass part 0.2 times.
Embodiment 9, the Binder Materials of this PCCP pipe inspection screed, raw materials by weight portion includes 42.5 fast hard sulfur aluminic acids
Salt cement 900 parts, silicon ash 100 parts, polycarboxylate water-reducer 4 parts, 0.9 part of polyethylene glycol oxide powder, graphene oxide 1 part.Use
During the Binder Materials of the PCCP pipe inspection screed that embodiment 9 obtains, add the water of Binder Materials gross mass part 0.2 times.
Embodiment 10, the Binder Materials of this PCCP pipe inspection screed, raw materials by weight portion includes 42.5 fast hard sulfur aluminum
Acid salt cement 900 parts, silicon ash 150 parts, polycarboxylate water-reducer 4 parts, 3 parts of polyethylene glycol oxide powder, graphene oxide 1 part.Use
During the Binder Materials of the PCCP pipe inspection screed that embodiment 10 obtains, add the water of Binder Materials gross mass part 0.4 times.
Embodiment 11, the Binder Materials of this PCCP pipe inspection screed, raw materials by weight portion includes 42.5 fast hard sulfur aluminum
Acid salt cement 900 parts, silicon ash 100 parts, polycarboxylate water-reducer 12 parts, 3 parts of polyethylene glycol oxide powder, graphene oxide 0.2 part.Make
During the Binder Materials of the PCCP pipe inspection screed obtained by embodiment 11, add the water of Binder Materials gross mass part 0.4 times.
Embodiment 12, the Binder Materials of this PCCP pipe inspection screed, raw materials by weight portion includes 42.5 fast hard sulfur aluminum
Acid salt cement 900 parts, silicon ash 150 parts, polycarboxylate water-reducer 12 parts, 0.9 part of polyethylene glycol oxide powder, graphene oxide 0.2 part.
When using the Binder Materials of the PCCP pipe inspection screed that obtains of embodiment 12, add the water of Binder Materials gross mass part 0.2 times.
Embodiment 13, the Binder Materials of this PCCP pipe inspection screed, raw materials by weight portion includes 42.5 fast hard sulfur aluminum
Acid salt cement 850 parts, silicon ash 100 parts, polycarboxylate water-reducer 12 parts, 3 parts of polyethylene glycol oxide powder, graphene oxide 1 part.Use
During the Binder Materials of the PCCP pipe inspection screed that embodiment 13 obtains, add the water of Binder Materials gross mass part 0.2 times.
Embodiment 14, the Binder Materials of this PCCP pipe inspection screed, raw materials by weight portion includes 42.5 fast hard sulfur aluminum
Acid salt cement 850 parts, silicon ash 150 parts, polycarboxylate water-reducer 12 parts, 0.9 part of polyethylene glycol oxide powder, graphene oxide 1 part.Make
During the Binder Materials of the PCCP pipe inspection screed obtained by embodiment 13, add the water of Binder Materials gross mass part 0.4 times.
By embodiment 7, embodiment 8, embodiment 9, embodiment 10, embodiment 11, embodiment 12, embodiment 13 and embodiment
The PCCP pipe inspection screed obtained after the Binder Materials desired amount of water-cement ratio of cooperation of 14 present invention obtained and existing skill
Art PCCP pipe inspection screed performance parameter is shown in Table 1；After the Binder Materials invented as can be seen from Table 1 and water-cement ratio coordinate
The PCCP pipe inspection screed obtained and prior art PCCP pipe inspection screed performance each side have significantly increase, anticorrosive
Property increases substantially, drastically increases the corrosion resistance of screed itself.
The present invention compared with prior art has the advantage that
(1) present invention sends out after using 42.5 quick hardening sulphoaluminate cements and the mixing of silicon ash in Binder Materials in the presence of water
Raw hydration reaction, generates gelatinous hydrated product and plays cementation.When this Binder Materials can be effectively reduced condensation
Between, meet the requirement of injection, moreover it is possible to improve the intensity of mortar, reduce the shrinkage ratio of mortar, on the other hand, 42.5 fast hard sulfur simultaneously
Aluminate cement and silicon ash due in it chemical composition different, particle shape is different so that it is in cementitious material system
Effect be also not quite similar, in 42.5 quick hardening sulphoaluminate cements, calcium oxide content is high, and response speed is very fast, the contribution to intensity
Height, and the hydrated product formed has a dilatancy, good volume stability, and the main chemical compositions of silicon ash is silicon dioxide,
And its fineness has reached nanoscale, response speed is exceedingly fast, and filling effect is splendid, can obtain good superposition effect after the two being combined
Should, make Binder Materials can have higher intensity and can obtain again good cracking resistance.
(2) present invention adds polycarboxylate water-reducer in Binder Materials, makes Binder Materials have good application property, reduces
Water-cement ratio, improves degree of compaction and the durability of concrete.
(3) present invention adds polyethylene glycol oxide powder in Binder Materials, is to improve 42.5 quick hardening sulphoaluminate cements
Bonds itself performance, moreover it is possible to solve the interface compatibility problem of 42.5 quick hardening sulphoaluminate cements and other materials.
The present invention adds graphene oxide in cement mortar, hence it is evident that improve toughness and the intensity, beneficially mortar of concrete
The molding of protective layer material, will not occur slump phenomenon when preparing article.
Prior art is it cannot be guaranteed that the anticorrosive coat of PCCP pipe inspection screed and pipeline same life-span, and its cost is the most relatively
Expensive, with a diameter 1m, as a example by the PCCP pipe of length 6m, it needs to carry out antiseptic area and has reached 18.84m2, at present
The material price of the preservative treatment every square metre of prior art is about 10 yuan, then a pipe is accomplished by 188.4 yuan, and the present invention
Becoming present aspect to maintain an equal level with prior art mortar price owing to substantially can guarantee that, just can save so being equivalent to every pipe
188.4 it is first.If calculating with the engineering of a 30Km, can be with cost-effective 94.2 ten thousand yuan.Therefore, it can be said that the use present invention
After be possible not only to be effectively improved corrosion resistance and can also be effectively reduced the cost of pipeline.
In sum, the PCCP pipe inspection screed that the Binder Materials of the present invention obtains after coordinating desired amount of water-cement ratio
Stable performance, corrosion resistance is strong, eliminates organic external protection, simplifies technique, improves efficiency；On the other hand improve
The corrosion resistance of screed itself, also ensure that the safety of steel cylinder and compressor wire, it is to avoid steel cylinder and prestress steel
Silk is corroded, and is effectively reduced the cost of pipeline, and economical for engineering provides sound assurance.
Claims (9)
1. the Binder Materials of a PCCP pipe inspection screed, it is characterised in that raw materials by weight portion includes 42.5 fast hard sulfur aluminum
Acid salt cement 850 parts to 900 parts, silicon ash 100 parts to 150 parts, polycarboxylate water-reducer 4 parts to 12 parts, polyethylene glycol oxide powder 0.9
Part is to 3 parts, graphene oxide 0.2 part to 1 part.
The Binder Materials of PCCP pipe inspection screed the most according to claim 1, it is characterised in that obtain as follows:
The first step, mixes polycarboxylate water-reducer and graphene oxide, uses ultrasound wave to disperse 1 hour to 2 hours to form oxidation
Graphene and the intercalated compound of polycarboxylate water-reducer；Second step, uses continuous mixer tentatively to mix, fast hard by 42.5
Sulphate aluminium cement, silicon ash and polyethylene glycol oxide powder, be stirred, by the first step after putting into material conveying premixing storehouse successively
The graphene oxide obtained and the intercalated compound of polycarboxylate water-reducer use atomizer to be atomized into granule, are then sprayed into premix
He Cang top, utilizes freely falling body principle to make liquid obtain mixture, during atomized spray after being evenly affixed to powder granule surface
Between be 5 minutes to 7 minutes；3rd step, drops down onto centrifugal rotation dispersion impeller through the mixture being mixed to get bottom premixing storehouse
On, make mixture pass through random point being sprinkled upon in cylindrical warehouse of its edge, small hole at bottom part, after completing second step mixing, obtain powder
Body；4th, under gravity, through bent road, baffling blends component water conservancy diversion to the powder body that the 3rd step obtains, finally by outlet at bottom
Discharge, i.e. obtain the Binder Materials of PCCP pipe inspection screed of the present invention.
The Binder Materials of PCCP pipe inspection screed the most according to claim 2, it is characterised in that stir in second step
Time use 3KW Mixing Machine, in premixing storehouse the most tentatively stir mixing 5 minutes to 7 minutes.
4. according to the Binder Materials of the PCCP pipe inspection screed described in Claims 2 or 3, it is characterised in that graphene oxide and
The intercalated compound of polycarboxylate water-reducer uses the atomizing particle that atomizer is atomized into 10 microns to 50 microns；Or/and, the 3rd
In step, centrifugal rotation dispersion impeller uses the rotating machinery of 1KW, and rotating speed is 1200 revs/min.
5. the production method of the Binder Materials of PCCP pipe inspection screed according to claim 1, it is characterised in that press
Following step is carried out: the first step, polycarboxylate water-reducer and graphene oxide is mixed, and uses ultrasound wave to disperse 1 hour to 2
Hour form graphene oxide and the intercalated compound of polycarboxylate water-reducer；Second step, uses continuous mixer tentatively to mix
Close, by 42.5 quick hardening sulphoaluminate cements, silicon ash and polyethylene glycol oxide powder, carry out after putting into material conveying premixing storehouse successively
The intercalated compound of stirring, the graphene oxide that the first step obtained and polycarboxylate water-reducer uses atomizer to be atomized into
Grain, is then sprayed into top, premixing storehouse, utilizes freely falling body principle to make liquid be mixed after being evenly affixed to powder granule surface
Compound, the atomized spray time is 5 minutes to 7 minutes；3rd step, drops down onto bottom premixing storehouse through the mixture being mixed to get
On centrifugal rotation dispersion impeller, make mixture pass through its edge, random the dividing of small hole at bottom part is sprinkled upon in cylindrical warehouse, completes second
Powder body is obtained after step mixing；4th, under gravity, through bent road, baffling blends component water conservancy diversion to the powder body that the 3rd step obtains,
Finally discharged by outlet at bottom, i.e. obtain the Binder Materials of PCCP pipe inspection screed of the present invention.
The production method of the Binder Materials of PCCP pipe inspection screed the most according to claim 5, it is characterised in that
Two steps use during stirring the Mixing Machine of 3KW, the most tentatively stirs mixing 5 minutes to 7 minutes in premixing storehouse.
7. according to Binder Materials and the production method thereof of the PCCP pipe inspection screed described in claim 5 or 6, it is characterised in that
The intercalated compound of graphene oxide and polycarboxylate water-reducer uses the atomization that atomizer is atomized into 10 microns to 50 microns
Grain.
8. according to the production method of the Binder Materials of the PCCP pipe inspection screed described in claim 5 or 6, it is characterised in that from
The heart rotates dispersion impeller and uses the rotating machinery of 1KW, forms the rotating speed of 1200 revs/min.
The production method of the Binder Materials of PCCP pipe inspection screed the most according to claim 7, it is characterised in that centrifugal
Rotate dispersion impeller and use the rotating machinery of 1KW, form the rotating speed of 1200 revs/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400460.2A CN106045430A (en) | 2016-06-08 | 2016-06-08 | Cementing material for PCCP (prestressed concrete cylinder pipe) injecting mortar layer and production method of cementing material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400460.2A CN106045430A (en) | 2016-06-08 | 2016-06-08 | Cementing material for PCCP (prestressed concrete cylinder pipe) injecting mortar layer and production method of cementing material |
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| CN106045430A true CN106045430A (en) | 2016-10-26 |
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| CN109503092A (en) * | 2018-12-24 | 2019-03-22 | 河南城建学院 | Early strong impervious, cement base grouting material of height containing graphene oxide and preparation method thereof |
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| CN109503092A (en) * | 2018-12-24 | 2019-03-22 | 河南城建学院 | Early strong impervious, cement base grouting material of height containing graphene oxide and preparation method thereof |
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