CN108675699A - A kind of corrosion-resistant geopolymer filling concrete pile material and preparation method thereof and construction technology - Google Patents
A kind of corrosion-resistant geopolymer filling concrete pile material and preparation method thereof and construction technology Download PDFInfo
- Publication number
- CN108675699A CN108675699A CN201810595723.9A CN201810595723A CN108675699A CN 108675699 A CN108675699 A CN 108675699A CN 201810595723 A CN201810595723 A CN 201810595723A CN 108675699 A CN108675699 A CN 108675699A
- Authority
- CN
- China
- Prior art keywords
- parts
- concrete pile
- corrosion
- geopolymer
- pile material
- 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.)
- Pending
Links
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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- 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
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of corrosion-resistant geopolymer filling concrete pile materials, including following components：10 40 parts of 100 parts of metakaolin, flyash in parts by weight, 150 250 parts of the modified water glass that modulus is 1.2 1.8,400 600 parts of fine sand, 800 1500 parts of stone, 5 20 parts of vinal, 5 10 parts of boric acid；Modified water glass is modulated by 6 15 parts of water, 15 40 parts of sodium hydroxide and 129 195 parts of commercial water glass.The invention also discloses a kind of preparation method of corrosion-resistant geopolymer filling concrete pile material, it is directed to the construction technology of corrosion-resistant geopolymer filling concrete pile material.The present invention can prepare the metakaolin based geopolymer PVA fiber concretes that can be used for bored concrete pile grouting construction with good rheological and corrosion resistance and pile material is perfused, technical solution using simple, concrete material high-early-strength, construction is quickly continuous, strong applicability, realizes the efficient of material, can be widely used under the corrosive environments such as northwest salt-soda soil engineering construction in the Practical Project of bored concrete pile.
Description
Technical field
The invention belongs to the resistant material field in ocean engineering construction material, corrosion-resistant gather more particularly, to a kind of
Close construction technology of the object filling concrete pile material and preparation method thereof with bored concrete pile.
Background technology
It is the immediate cause of structure function degeneration and reduced service life, the loss nothing brought that building structural element, which is corroded,
Method is estimated.Either cement base reinforced concrete structure, steel construction or composite structure can all generate in saline alkali corrosion environment
Different degrees of etching problem.Geopolymer is a kind of novel inorganic green cementing material, by A l O4And SiO4Four
Face body monomer polymerization is formed, which has excellent mechanical performance, freezing-thawing resistance and heat-resisting ability, it is often more important that this
Kind alkali-activated material has the characteristics that preferable saline-alkaline corrosion-resistant ability, self-compaction degree height and high-early-strength, therefore is building
The anti-corrosion in engineering structure under structure, road and bridge engineering, hydraulic engineering, ocean engineering and some extreme conditions has extensive
Application value.
A kind of composite pile with high permanent stability protection layer, the protection are disclosed in 101343871 A of Chinese patent CN
Layer material selects engineering plastics and its modified product, alkali-activated carbonatite cementitious material mortar or concrete, geopolymer mortar or coagulation
Soil, Reactive Powder Concrete, technical fiber enhancing cement-based material, resin mortar or concrete, asphalt mortar, bituminous mortar or concrete.
A kind of ocean engineering prestressed reinforced concrete pile foundation anti-corrosion material is disclosed in 104878743 A of Chinese patent CN, it is this
Material is made of resin, pigment, thixotropic agent, ultra-violet absorber, initiator, accelerating agent and glass fabric.In Chinese patent
A kind of corrosion-resistant cast-in-place pile concrete in high and cold subgrade area is disclosed in 103553500 A of CN, this concrete is by ordinary silicon
Acid salt cement, flyash, slag, water-reducing agent and air entraining agent composition.
As above-mentioned existing cast-in-place pile concrete anti-corrosion material has the following defects：(1) most of anti-corrosion material is to apply
Layer material, and bored concrete pile material therefor itself can not reach good anti-corrosion effect；(2) corrosion-inhibiting coating used by is mostly
Resinae organic material, production and the process of use are unfavorable to environment, in addition, coating process is only applicable to prefabricated pile foundation mostly
Plinth, the use of coating increases the difficulty of construction with cost for bored concrete pile foundation and using effect is not as good as prefabricated pile basis
Coating；(3) utilization of self-compaction cement-based material can effectively prevent the infiltration of villaumite to protect reinforcing bar not to be corroded, but
Cement-based material is degenerated serious due to sulphate corrosion performance in ocean engineering, and then leads to whole bored concrete pile foundation anti-corrosion
It loses ineffective.In conclusion existing anti-corrosion material cannot be satisfied the bored concrete pile anticorrosion process under ocean engineering etching condition；
(4) both geopolymer injecting paste material intensity and good mobility used in patent document can not get both before, be existing
Construction is with the later stage using causing bigger influence；(5) basis《Code for design of corrosion prevention of industrial buildings》GB50046-
2008, traditional filling pile structure due to the use of Portland cement base concrete and reinforcing bar structural system, in sulfate
With cannot be merely able to using bored concrete pile using prefabricated pile under the higher strong corrosive environment of villaumite and need to do anti-corrosion specially treated,
Inconvenience is brought to the construction and design of certain pile foundation engineerings.
Invention content
For overcome the deficiencies in the prior art, the present invention provides a kind of using inorganic matter as main component, strength of materials height, stream
Good corrosion-resistant geopolymer filling concrete pile material of dynamic property and preparation method thereof and construction technology.
The technical solution adopted by the present invention to solve the technical problems is：A kind of corrosion-resistant geopolymer cast-in-place concrete pile
Material, including following components：10-40 parts of 100 parts of metakaolin, flyash in parts by weight, the modification that modulus is 1.2-1.8
150-250 parts of waterglass, 400-600 parts of fine sand, 800-1500 parts of stone, 5-20 parts of vinal, 5-10 parts of boric acid；Its
Described in modified water glass by 6-15 parts of water, 15-40 parts of sodium hydroxide and 129-195 parts commercial water glass modulation and
At.
Further, so metakaolin calcines formation at 800-900 DEG C, particle size is 0.1-10 μm.Calcining temperature
Degree influences the activity of metakaolin to a certain extent, therefore calcination temperature no more than 1000 DEG C and is not less than 500 DEG C, particle ruler
It is very little to influence reactivity and slurry rheology simultaneously, therefore should not be excessively thick or meticulous.
Further, the flyash is thermal power plant grade F class level-one flyash, and particle size is 1-100 μm.It is used
Flyash main component is silica, aluminium oxide, iron oxide, calcium oxide, titanium oxide, phosphorous oxide etc., is using F class flyash
Because F classes flyash (Class F fly ash) is lower than C classes flyash (high-calcium fly ass) content, and the content of calcium less gathers ground
The ability of the sulfate-resistant corrosion of object concrete material enhances, while heat of hydration degree is low, can obtain the perfusion of more preferable performance
Pile material.
Further, the silicon modulus of the commercial water glass is 2.2-3.2, and effective solid content is 30-50%.
Further, the fine sand selects II class, and fineness modulus is 1.6-2.2 (fineness modulus is fine sand standard),
Particle size is 250-350 μm.The fine sand for selecting granularity smaller increases the contact area between aggregate and geopolymer slurry,
It is even closer so that geopolymer is combined with aggregate, it is whole finer and close, it is more advantageous to the corrosion resistance of material.
Further, the stone selects the cobble of II class, and cobble-stone diameter is less than or equal to 40mm, average grain diameter for
28-33mm.To geopolymer-PVA while selecting the cobble of moderate in grain size that can ensure the aggregate integrality under corrosive environment
The workability of fiber concrete does not have much impact.
Further, the fibre length of the vinal is 10-14mm, 32-45 μm of fibre diameter, tensile strength
1500-1700MPa, elongation 5-9%, tensile modulus of elasticity 40-45GPa, bulk density 0.9-1.6g/cm3.It is commercially available poly-
The amount that vinyl alcohol (PVA) fiber is added needs stringent control, and the amount of addition excessively leads to geopolymer concrete material slow setting, whole
The mechanical performance of a perfusion pile material can decline to a great extent, the amount of addition is very few cause entire bored concrete pile intensity shear resistance substantially under
Drop.
Further, dosage S/ (the dosage S+ stones dosage G of fine sand) × 100% controls of the sand coarse aggregate ratio SP=fine sands exist
25-35%.Sand coarse aggregate ratio can make the workability of geopolymer concrete reach best within the scope of this, can be in perishable environment
Lower normal work.
Preferably, the boric acid is white powder crystal, fineness of powder is 100-300 mesh.Specified weight part is added
Raw material can be condensed firm time after the boric acid of (5-10 parts by weight) and extend 1-2h, be more conducive to the continuous of bored concrete pile and apply
Work.
The present invention discloses a kind of preparation method of corrosion-resistant geopolymer filling concrete pile material, including following step again
Suddenly：
1) shift to an earlier date one hour and prepare modified water glass, water intaking, commercial water glass and sodium hydroxide are sufficiently mixed, and are waited for fully molten
It is spare at room temperature to solve postposition；
2) first by flyash with metakaolin is full and uniform mixes, then the modified water glass solution obtained in step 1) is added
Enter and is sufficiently stirred in the powder mixed；
3) it in the gel for again obtaining boric acid addition step 2), is stirred with the speed of 120-300r/mi n in blender
4-6 minutes；
4) vinal, fine sand and stone stirring are added in the geopolymer gel rubber material that step 3) obtains,
Obtained geopolymer-PVA fiber concrete materials, sealing water conservation preserve spare in state is stirred.
Due to the corrosion-resistant geopolymer cast-in-place pile concrete condensation of materials speed (after boric acid is added presetting period
Can control in 1h-4h), above-mentioned geopolymer cast-in-place pile concrete material stirs completion in the time in 30min, now mix existing
With can be used to the mortar depositing construction of bored concrete pile after completion of stirring.
According to the associated construction specification of bored concrete pile《Technical code for building pile foundation》(JGJ94-2008)、《Highway bridge and culvert is constructed
Technical specification》(JTG/T F50-2011) etc., the invention also discloses one kind being directed to corrosion-resistant geopolymer filling concrete
The construction technology of pile material, including following construction procedure：
1) water, electricity and construction material are got out, is cut the earth after the original conducting wire of underground obstacle is removed, then soil is returned
It fills out and uses vibrated roller ground grading, then pour C25 concrete cushions in the plane, to meet drilling needs；
It 2), will be in cast-in-place concrete pile material preparation step 4) after the inspection work for carrying out borehole cleaning and framework of steel reinforcement installation
The geopolymer concrete mixed and stirred in advance is irrigated construction, it should be noted that should continuously be constructed, avoid the occurrence of isolation, spillage
And the problems such as bleeding；
3) after the completion of pouring, the floating and cleaning that carry out surface to bored concrete pile is needed, it is exposed etc. to avoid the occurrence of PVA fibers
Problem improves the density of bored concrete pile.
The present invention also have for the cast-in-situ bored pile geopolymer-PVA fiber concretes in underwater construction environment pour into
Row explanation：
Geopolymer-PVA fiber concretes in underwater cast-in-place pile engineering are poured using underwater tremie placing method, in conduit
Diameter 350mm, conduit use pumping by screwed connection, each hole stake 1 group of conduit of setting, geopolymer-PVA fiber concretes,
Hopper is arranged in aperture, and enough injecting paste materials are laid in when pouring can ensure once to seal successfully.It utilizes and leads after the completion of pouring
Pipe carries out secondary pile hole cleaning, must measure hole depth again before perfusion, can just start to be perfused after meeting the requirements.In general it pours
Speed is an important factor for influencing bored concrete pile performance, and concern speed can lead to very much the liquidity value added of concrete material and cause slowly
Plugging.Therefore, for geopolymer-PVA fiber concretes, rate of flooding generally in 8-14m/h, can reach 16m/
h.In casting process, the rising situation in Timing measurement geopolymer-PVA fiber concretes face, and polymerize with the ground poured into
Object-PVA fiber concrete amounts are mutually checked, and avoid conduit from pulling away concrete surface, and according to geopolymer-PVA fiber concretes face
Rising situation adjust the concrete injection rate of each conduit in time, ensure the uniform rising of concrete surface.
The beneficial effects of the invention are as follows：
(1) proportioning for adjusting both metakaolin and flyash is used, so as to be adjusted on the basis of proof strength
The mobility for saving corrosion-resistant geopolymer-PVA fiber concretes perfusion pile material, can pass through in the different place of work condition environment
Change proportioning and obtains the geopolymer concrete material for being most suitable for specific construction environment.Flyash and metakaolin volume ratio with
The data for flowing sexual intercourse are as shown in table 1, data such as 2 institute of table of flyash and metakaolin volume ratio and compression strength relationship
Show.Although metakaolin based geopolymer net slurry intensity is very high and fast solidifying, its mobility is poor, in water ash
The rheological characteristic of cementitious material is remarkably decreased with workability when than WSR≤0.70, although and fly ash-based geopolymer intensity is not high,
Active relatively low and various performances are unstable, but since the microstructure of flyash is chondritic, flyash base is poly-
It is fine to close object mobility, still keeps superperformance, i.e., a certain amount of flyash that can play in ratio of mud WSR≤0.36
Imitate the effect in water-reducing agent.If the two is mixed in a certain ratio by we, intensity can be obtained and reach requirement, condensation hardening
Quickly and the good geopolymer composite material of mobility, wherein metakaolin are the intensity source of cementitious material, flyash
Gathering reaction, the equivalent water-reducing agent in part with then playing the role of subparticipation and is partially filled with material so that entire material is more closely knit,
It is more conducive to the anti-corrosion of component；
Table 1 adjusts flyash/metakaolin and reaches water-cement ratio needed for identical fluidity
| Flyash | 100% | 80% | 60% | 40% | 20% | 0 |
| Metakaolin | 0 | 20% | 40% | 60% | 80% | 100% |
| Water-cement ratio (WSR) | 0.38 | 0.45 | 0.50 | 0.60 | 0.66 | 0.73 |
Table 2 adjusts the 28d compression strength variation of flyash/metakaolin
| Flyash | 100% | 80% | 60% | 40% | 20% | 0 |
| Metakaolin | 0 | 20% | 40% | 60% | 80% | 100% |
| 28d compression strength (MPa) | 10.45 | 19.46 | 34.92 | 48.49 | 61.47 | 78.47 |
(2) corrosion-resistant geopolymer filling concrete pile material has compared to normal silicate filling concrete pile material
Rheological characteristic is good, high-early-strength, the more low advantage of porosity, be more suitable under water and arid region etc. need to shorten material it is solidifying
Tie the environment of hard time.Relevant rheological characteristic (slump), porosity are as shown in table 3 with age compression strength data early；
3 a variety of materials performance of table compares
(3) after testing, the geopolymer filling concrete pile material of the proportioning conserves anti-after 28d at the standard conditions
Compressive Strength is about 45.682MPa, and the compression strength obtained after half a year is impregnated in the solution containing sulfate and is about
51.673MPa, and common C30 filling concretes pile material is in the same circumstances, compression strength is about when maintenance is completed
33.158MPa, the compression strength after persulfate solution corrodes can lose about 40%, and intensity is about 19.447MPa, specific number
According to relatively more as shown in table 4；
4 a variety of materials corrosion resistance of table compares
(4) research shows that reinforcing bar is easily corroded in bar in chlorine salt solution, cement-base concrete is also easily in condition of sulfate
In be corroded.According to《Code for design of corrosion prevention of industrial buildings》GB50046-2008 tables 4.9.5 is it is found that under strong corrosive environment not
Normal silicate cast-in-place concrete pile should be used, but since geopolymer-PVA fiber concretes perfusion pile material need not configure
Steel reinforcement cage, and the salt resistance class corrosive power for cement-based gelling material is very strong with PVA fibers for geopolymer gelled material,
Therefore the geopolymer-PVA fibers perfusion pile material is solved and cannot be asked using the technical of bored concrete pile under strong corrosive environment
Topic.The mechanical property of specific each component is as shown in table 5.
The mechanical property of the material members not of the same race of table 5
(5) be compared to the anti-corrosion material epoxy resin that present market is mainstream, the corrosion-resistant cementitious material main body by
Inorganic matter forms, and has longer service life, performance is more stablized, and can be led as the Epoxy Resin Coated Steel Bars of organic matter
It causes to decline with the cohesive force of cementitious material, to be easy to cause the generation of sliding, shadow is generated to the service life of entire bored concrete pile
It rings.Since anti-corrosion material used in the present invention is geopolymer, and the CO of the energy consumption of geopolymer and discharge2Amount is only
The 41% of Portland cement and 20%, it is more environmentally protective durable.
The bored concrete pile that can be used for good rheological and corrosion resistance can be prepared using technical solution of the present invention to fill
Pile material is perfused in the metakaolin based geopolymer-PVA fiber concretes of slurry construction.There is the present invention technical solution to use letter
List, concrete material high-early-strength, construction is quickly continuous, strong applicability, realizes the features such as efficient utilization of material, can transport extensively
For under the corrosive environments such as the construction of architectural engineering foundation pouring pile, the engineering construction of northwest salt-soda soil, hydraulic engineering and ocean engineering
In the Practical Project of bored concrete pile.
Specific implementation mode
It, below will be to the technology in inventive embodiments in order to make those skilled in the art be better understood from the present invention program
Scheme carries out clear, complete description, it is clear that and described embodiment is only a part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, should all belong to the scope of protection of the invention.
Embodiment 1
A kind of corrosion-resistant geopolymer filling concrete pile material, is mainly used in the islands and reefs engineering construction of ocean, including
Following components：
Metakaolin 100g, flyash 20g, modified water glass 250g, fine sand 500g, the stone 1000g that modulus is 1.4,
Vinal 20g, boric acid 8g, wherein modified water glass are 20.97% water, 9.83% sodium hydroxide by mass fraction
And 69.20% commercial water glass is modulated, the silicon modulus of commercial water glass is 2.2, and effective solid content is 30%；Partially
Kaolin calcines formation at 800 DEG C, and particle size is 0.1-10 μm；Flyash is thermal power plant grade F class level-one fine coal
Ash, particle size are 1-30 μm；It is 250 μm or so that fine sand, which selects II class, fineness modulus 1.6, particle size,；Stone is selected
The cobble of II class, cobble-stone diameter are less than or equal to 40mm, and average grain diameter is for 28-33mm；The fibre length of vinal
For 10-14mm, 32-45 μm of fibre diameter, tensile strength 1500-1700MPa, elongation 5-9%, tensile modulus of elasticity is
40-45GPa, bulk density 0.9g/cm3；The dosage S/ (the dosage S+ stones dosage G of fine sand) × 100% of sand coarse aggregate ratio SP=fine sands
It is 33.3%.
The bored concrete pile foundation construction work of above-mentioned corrosion-resistant geopolymer filling concrete pile material oceanic island reef construction project
Skill includes the following steps：
The first step gets out water, electricity and construction material, cuts the earth after the original conducting wire of underground obstacle is removed, then will be native
It carries out backfill and with vibrated roller ground grading, C25 concrete cushions is then poured in the plane, to meet drilling needs；
Second step, mixture preparation process are as follows：
1) shift to an earlier date one hour and get out modified water glass, take mass fraction 20.97% water, 9.83% sodium hydroxide with
And 69.20% commercial water glass is sufficiently mixed, recovery room warm standby is used after abundant dissolving；
2) first by flyash with metakaolin is full and uniform mixes, then the modified water glass solution obtained in step 1) is added
Enter and is sufficiently stirred in the powder mixed；
3) in the gel for again obtaining boric acid addition step 2), 5 points are stirred with the speed of 240r/mi n in blender
Clock；
4) vinal, fine sand and stone stirring are added in the geopolymer net slurry that step 3) obtains, obtains
Geopolymer-PVA fiber concrete materials sealing save backup；
Third walks, and after the inspection work for carrying out borehole cleaning and framework of steel reinforcement installation, cast-in-place pile concrete material preparation is walked
It is rapid 4) in the geopolymer concrete that has mixed and stirred in advance be irrigated construction, it should be noted that should continuously be constructed, avoid the occurrence of from
The problems such as analysis, spillage and bleeding；
4th step needs the floating and cleaning that carry out surface to bored concrete pile, avoids the occurrence of PVA fibers after the completion of pouring
The problems such as exposed, improves the density of bored concrete pile.
Geopolymer-PVA fiber concretes in the islands and reefs Pile Grouting of ocean are poured using tremie placing method, and this matches
The filling concrete pile material slump of ratio is 20.5cm, meets requirement of the slump in 18-22cm, catheter diameter 250mm is led
Pipe is arranged in aperture and is expected using pumping by screwed connection, each hole stake 1 group of conduit of setting, geopolymer-PVA fiber concretes
Bucket, enough injecting paste materials are laid in when pouring can ensure once to seal successfully.It is secondary using conduit progress after the completion of pouring
Borehole cleaning must measure hole depth again before perfusion, can just start to be perfused after meeting the requirements.In the islands and reefs engineering of ocean, perfusion speed
For degree generally in 8-10m/h, this rate of flooding is 8m/h.
Embodiment 2
A kind of corrosion-resistant geopolymer filling concrete pile material, is mainly used in submerged structure engineering construction, including
Following components：
Metakaolin 100g, flyash 35g, modified water glass 250g, fine sand 600g, the stone 1600g that modulus is 1.2,
Vinal 15g, boric acid 5g, wherein modified water glass are 5.29% water, 11.76% sodium hydroxide by mass fraction
And 82.95% commercial water glass is modulated, the silicon modulus of commercial water glass is 2.2, and effective solid content is 30%；Partially
Kaolin calcines formation at 800 DEG C, and particle size is 0.1-10 μm；Flyash is thermal power plant grade F class level-one fine coal
Ash, particle size are 1-30 μm；It is 250 μm or so that fine sand, which selects II class, fineness modulus 1.6, particle size,；Stone is selected
The cobble of II class, cobble-stone diameter are less than or equal to 40mm, and average grain diameter is for 28-33mm；The fibre length of vinal
For 10-14mm, 32-45 μm of fibre diameter, tensile strength 1500-1700MPa, elongation 5-9%, tensile modulus of elasticity is
40-45GPa, bulk density 0.9g/cm3；The dosage S/ (the dosage S+ stones dosage G of fine sand) × 100% of sand coarse aggregate ratio SP=fine sands
It is 27.3%.
The bored concrete pile foundation construction technology of above-mentioned corrosion-resistant geopolymer filling concrete pile material construction project under water
Include the following steps：
The first step gets out sufficient water, electricity and construction material, cuts the earth after the original conducting wire of underground obstacle is removed,
Again by soil carry out backfill and use vibrated roller ground grading, then pour C25 concrete cushions in the plane, with meet drill
It needs；
Second step, mixture preparation process are as follows：
1) shift to an earlier date one hour and get out modified water glass, take mass fraction 5.29% water, 11.76% sodium hydroxide with
And 82.95% commercial water glass is sufficiently mixed, recovery room warm standby is used after abundant dissolving；
2) first by flyash with metakaolin is full and uniform mixes, then the modified water glass solution obtained in step 1) is added
Enter and is sufficiently stirred in the powder mixed；
3) in the gel for again obtaining boric acid addition step 2), 6 points are stirred with the speed of 150r/mi n in blender
Clock；
4) vinal, fine sand and stone stirring are added in the geopolymer net slurry that step 3) obtains, obtains
Geopolymer-PVA fiber concrete materials sealing save backup；
Third walks, and after the inspection work for carrying out borehole cleaning and framework of steel reinforcement installation, cast-in-place pile concrete material preparation is walked
It is rapid 4) in the geopolymer concrete that has mixed and stirred in advance be irrigated construction, it should be noted that should continuously be constructed, avoid the occurrence of from
The problems such as analysis, spillage and bleeding；
4th step needs the floating and cleaning that carry out surface to bored concrete pile, avoids the occurrence of PVA fibers after the completion of pouring
The problems such as exposed, improves the density of bored concrete pile.
Geopolymer-PVA fiber concretes in underwater cast-in-place pile engineering are poured using underwater tremie placing method, and this matches
The filling concrete pile material slump of ratio is 18.2cm, meets requirement of the slump in 18-22cm, catheter diameter 250mm is led
Pipe is arranged in aperture and is expected using pumping by screwed connection, each hole stake 1 group of conduit of setting, geopolymer-PVA fiber concretes
Bucket, enough injecting paste materials are laid in when pouring can ensure once to seal successfully.It is secondary using conduit progress after the completion of pouring
Borehole cleaning must measure hole depth again before perfusion, can just start to be perfused after meeting the requirements.In ocean engineering, rate of flooding one
As in 6-8m/h, this example take 6m/h.
Embodiment 3
A kind of corrosion-resistant geopolymer filling concrete pile material, is mainly used in the engineering construction of northwest salt-soda soil, packet
Include following components：
Metakaolin 100g, flyash 40g, modified water glass 250g, fine sand 400g, the stone 800g that modulus is 1.5 gather
Alcohol fibers 10g, boric acid 10g, wherein modified water glass are 27.27% water, 8.10% sodium hydroxide by mass fraction
And 64.63% commercial water glass is modulated, the silicon modulus of commercial water glass is 2.2, and effective solid content is 30%；Partially
Kaolin calcines formation at 900 DEG C, and particle size is 0.1-10 μm；Flyash is thermal power plant grade F class level-one fine coal
Ash, particle size are 1-30 μm；It is 250 μm or so that fine sand, which selects II class, fineness modulus 1.6, particle size,；Stone is selected
The cobble of II class, cobble-stone diameter are less than or equal to 40mm, and average grain diameter is for 28-33mm；The fibre length of vinal
For 10-14mm, 32-45 μm of fibre diameter, tensile strength 1500-1700MPa, elongation 5-9%, tensile modulus of elasticity is
40-45GPa, bulk density 0.9g/cm3；The dosage S/ (the dosage S+ stones dosage G of fine sand) × 100% of sand coarse aggregate ratio SP=fine sands
It is 33.3%.
Above-mentioned corrosion-resistant geopolymer filling concrete pile material is in northwest salt-soda soil engineering bored concrete pile foundation construction technology
Include the following steps：
The first step gets out water, electricity and construction material, cuts the earth after the original conducting wire of underground obstacle is removed, then will be native
It carries out backfill and with vibrated roller ground grading, C25 concrete cushions is then poured in the plane, to meet drilling needs；
Second step, mixture preparation process are as follows：
1) shift to an earlier date one hour and get out modified water glass, take mass fraction 27.27% water, 8.10% sodium hydroxide with
And 64.63% commercial water glass is sufficiently mixed, recovery room warm standby is used after abundant dissolving；
2) first flyash is added in the modified water glass solution obtained in step 1) and is sufficiently stirred；
3) metakaolin is added in the solution that step 2) obtains with stirring again, with the speed of 300r/mi n in blender
Degree stirring 4 minutes；
4) vinal, fine sand and stone stirring are added in the geopolymer net slurry that step 3) obtains, obtains
Geopolymer-PVA fiber concrete materials sealing save backup；
Third walks, and after the inspection work for carrying out borehole cleaning and framework of steel reinforcement installation, cast-in-place pile concrete material preparation is walked
It is rapid 4) in the geopolymer concrete that has mixed and stirred in advance be irrigated construction, it should be noted that should continuously be constructed, avoid the occurrence of from
The problems such as analysis, spillage and bleeding；
4th step needs the floating and cleaning that carry out surface to bored concrete pile, avoids the occurrence of PVA fibers after the completion of pouring
The problems such as exposed, improves the density of bored concrete pile.
It is anhydrous operating condition, the geopolymer-PVA fiber concretes in Pile Grouting when northwest salt-soda soil is constructed
It pours and tumbling barrel casting method, concrete is used to vibrate using plug-in type vibrating stick, the absolute altitude of concrete has more than designed elevation
0.5m.When having water in drilling, elevation of top is higher by 0.7m than designed elevation.This proportioning filling concrete pile material slump be
21.4cm meets requirement of the slump in 18-22cm.The floating that surface is carried out before concrete initial set, avoids the occurrence of contraction and splits
Seam.The laitance layer on surface should be cut in time, to ensure the good connection with cushion cap.In the engineering in northwestward salt-soda soil, due to
Humidity is relatively low and temperature is relatively high, and concrete coagulation hardening is very fast, and rate-of-loss of coolant is also accelerated.To avoid cementitious material drying from receiving
Contracting, therefore rate of flooding, generally in 14-16m/h, this rate of flooding is 14m/h.
Embodiment 4
A kind of corrosion-resistant geopolymer filling concrete pile material is mainly used in large-scale construction engineering construction, including
Following components：
Metakaolin 100g, flyash 10g, modified water glass 240g, fine sand 550g, the stone 1200g that modulus is 1.8,
Vinal 20g, boric acid 5g, wherein modified water glass are 10.32% water, 7.16% sodium hydroxide by mass fraction
And 82.52% commercial water glass is modulated, the silicon modulus of commercial water glass is 2.2, and effective solid content is 30%；Partially
Kaolin calcines formation at 800 DEG C, and particle size is 0.1-10 μm；Flyash is thermal power plant grade F class level-one fine coal
Ash, particle size are 1-30 μm；It is 250 μm or so that fine sand, which selects II class, fineness modulus 1.6, particle size,；Stone is selected
The cobble of II class, cobble-stone diameter are less than or equal to 40mm, and average grain diameter is for 28-33mm；The fibre length of vinal
For 10-14mm, 32-45 μm of fibre diameter, tensile strength 1500-1700MPa, elongation 5-9%, tensile modulus of elasticity is
40-45GPa, bulk density 0.9g/cm3；The dosage S/ (the dosage S+ stones dosage G of fine sand) × 100% of sand coarse aggregate ratio SP=fine sands
It is 31.4%.
Bored concrete pile foundation construction technology of the above-mentioned corrosion-resistant geopolymer filling concrete pile material in large-scale construction engineering
Include the following steps：
The first step gets out water, electricity and construction material, cuts the earth after the original conducting wire of underground obstacle is removed, then will be native
It carries out backfill and with vibrated roller ground grading, C25 concrete cushions is then poured in the plane, to meet drilling needs；
Second step, mixture preparation process are as follows：
1) shift to an earlier date one hour and get out modified water glass, take mass fraction 10.32% water, 7.16% sodium hydroxide with
And 82.52% commercial water glass is sufficiently mixed, recovery room warm standby is used after abundant dissolving；
2) first by flyash with metakaolin is full and uniform mixes, then the modified water glass solution obtained in step 1) is added
Enter and is sufficiently stirred in the powder mixed；
3) in the gel for again obtaining boric acid addition step 2), 6 points are stirred with the speed of 120r/mi n in blender
Clock；
4) vinal, fine sand and stone stirring are added in the geopolymer net slurry that step 3) obtains, obtains
Geopolymer-PVA fiber concrete materials sealing save backup；
Third walks, and after the inspection work for carrying out borehole cleaning and framework of steel reinforcement installation, cast-in-place pile concrete material preparation is walked
It is rapid 4) in the geopolymer concrete that has mixed and stirred in advance be irrigated construction, it should be noted that should continuously be constructed, avoid the occurrence of from
The problems such as analysis, spillage and bleeding；
4th step needs the floating and cleaning that carry out surface to bored concrete pile, avoids the occurrence of PVA fibers after the completion of pouring
The problems such as exposed, improves the density of bored concrete pile.
Geopolymer-PVA fiber concretes in heavy construction Pile Grouting are poured using tremie placing method, this proportioning
Filling concrete pile material slump be 19.8cm, meet requirement of the slump in 18-22cm, catheter diameter 250mm, conduit
By screwed connection, hopper is arranged using pumping, in aperture in each hole stake 1 group of conduit of setting, geopolymer-PVA fiber concretes,
Enough injecting paste materials are laid in when pouring can ensure once to seal successfully.It is secondary clear using conduit progress after the completion of pouring
Hole must measure hole depth again before perfusion, can just start to be perfused after meeting the requirements.In the islands and reefs engineering of ocean, rate of flooding
Generally in 10-12m/h, this rate of flooding is 10m/h.
Above-mentioned specific implementation mode is used for illustrating the present invention, rather than limits the invention, the present invention's
In spirit and scope of the claims, to any modifications and changes that the present invention makes, the protection model of the present invention is both fallen within
It encloses.
Claims (10)
1. a kind of corrosion-resistant geopolymer filling concrete pile material, it is characterised in that including following components：In parts by weight
100 parts of metakaolin, 10-40 parts of flyash, modulus be 1.2-1.8 400-600 parts of 150-250 parts of modified water glass, fine sand,
800-1600 parts of stone, 5-20 parts of vinal, 5-10 parts of boric acid；The wherein described modified water glass by 6-15 parts water,
It modulates the commercial water glass of 15-40 parts of sodium hydroxide and 129-195 part.
2. corrosion-resistant geopolymer filling concrete pile material according to claim 1, it is characterised in that：So higher ridge
Soil calcines formation at 800-900 DEG C, and particle size is 0.1-10 μm.
3. corrosion-resistant geopolymer filling concrete pile material according to claim 1, it is characterised in that：The flyash
For thermal power plant grade F class level-one flyash, particle size is 1-100 μm.
4. corrosion-resistant geopolymer filling concrete pile material according to claim 1, it is characterised in that：The commercially available water
The silicon modulus of glass is 2.2-3.2, and effective solid content is 30-50%.
5. corrosion-resistant geopolymer filling concrete pile material according to claim 1, it is characterised in that：The fine sand choosing
With II class, fineness modulus 1.6-2.2, particle size is 250-350 μm.
6. corrosion-resistant geopolymer filling concrete pile material according to claim 1, it is characterised in that：The stone choosing
With the cobble of II class, cobble-stone diameter is less than or equal to 40mm, and average grain diameter is for 28-33mm.
7. corrosion-resistant geopolymer filling concrete pile material according to claim 1, it is characterised in that：The polyethylene
The fibre length of alcohol fiber be 10-14mm, 32-45 μm of fibre diameter, tensile strength 1500-1700MPa, elongation 5-9%,
Tensile modulus of elasticity is 40-45GPa, bulk density 0.9-1.6g/cm3。
8. corrosion-resistant geopolymer filling concrete pile material according to claim 1, it is characterised in that：The sand coarse aggregate ratio SP
The dosage S/ (the dosage S+ stones dosage G of fine sand) × 100% of=fine sand is controlled in 30-35%.
9. a kind of preparation method of corrosion-resistant geopolymer filling concrete pile material, it is characterised in that include the following steps：
1) shift to an earlier date one hour and prepare modified water glass, water intaking, commercial water glass and sodium hydroxide are sufficiently mixed, after abundant dissolving
It is placed in spare at room temperature；
2) first by flyash with metakaolin is full and uniform mixes, then the modified water glass solution obtained in step 1) is added mixed
It is sufficiently stirred in the powder got togather；
3) in the gel for again obtaining boric acid addition step 2), with 4-6 points of the speed of 120-300r/min stirring in blender
Clock；
4) vinal, fine sand and stone stirring, obtained ground are added in the geopolymer net slurry that step 3) obtains
Polymer-PVA fiber concrete materials, sealing save backup.
10. a kind of construction technology being directed to corrosion-resistant geopolymer filling concrete pile material, it is characterised in that including following
Construction procedure：
1) water, electricity and construction material are got out, is cut the earth after the original conducting wire of underground obstacle is removed, then soil is backfilled simultaneously
With vibrated roller ground grading, C25 concrete cushions are then poured in the plane, to meet drilling needs；
2) after the inspection work for carrying out borehole cleaning and framework of steel reinforcement installation, will shift to an earlier date in cast-in-place concrete pile material preparation step 4)
The geopolymer concrete mixed and stirred is irrigated construction, it should be noted that should continuously be constructed, avoid the occurrence of isolation, spillage and
The problems such as bleeding；
3) after the completion of pouring, the floating and cleaning that carry out surface to bored concrete pile are needed, avoids the occurrence of that PVA fibers are exposed etc. to ask
Topic, improves the density of bored concrete pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810595723.9A CN108675699A (en) | 2018-06-11 | 2018-06-11 | A kind of corrosion-resistant geopolymer filling concrete pile material and preparation method thereof and construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810595723.9A CN108675699A (en) | 2018-06-11 | 2018-06-11 | A kind of corrosion-resistant geopolymer filling concrete pile material and preparation method thereof and construction technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108675699A true CN108675699A (en) | 2018-10-19 |
Family
ID=63810419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810595723.9A Pending CN108675699A (en) | 2018-06-11 | 2018-06-11 | A kind of corrosion-resistant geopolymer filling concrete pile material and preparation method thereof and construction technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108675699A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041036A (en) * | 2019-03-20 | 2019-07-23 | 安徽理工大学 | A kind of alkali-activated carbonatite concrete material being specially adapted for underwater casting |
| CN110272237A (en) * | 2019-07-17 | 2019-09-24 | 郑州大学 | A kind of PVA fiber and steel fiber reinforced concrete |
| CN110330279A (en) * | 2019-07-17 | 2019-10-15 | 郑州大学 | A kind of preparation method of PVA fiber and steel fiber reinforced concrete |
| CN110984136A (en) * | 2019-11-14 | 2020-04-10 | 温州大学瓯江学院 | Construction process of pressurized geopolymer cast-in-situ bored pile |
| CN112159130A (en) * | 2020-09-04 | 2021-01-01 | 湖南省第六工程有限公司 | Geopolymer cementing material for temporary spray anchor support engineering and preparation method thereof |
| CN112299769A (en) * | 2020-11-16 | 2021-02-02 | 同济大学 | Ultrahigh molecular weight fiber-emulsified asphalt modified high-toughness geopolymer grouting material, and preparation method and application thereof |
| CN112441765A (en) * | 2020-12-03 | 2021-03-05 | 广东博智林机器人有限公司 | Alkali activator, alkali-activated gel material, concrete and preparation method of concrete |
| WO2021082767A1 (en) * | 2019-10-31 | 2021-05-06 | 国家电网有限公司 | Method for constructing reinforced fiber and metakaolin-based pressurized cast-in-place pile |
| CN113860806A (en) * | 2021-10-20 | 2021-12-31 | 武汉工程大学 | Semi-flexible asphalt pavement material filled with fly ash-based polymer and preparation method thereof |
| CN114134884A (en) * | 2021-11-11 | 2022-03-04 | 中铁大桥局集团有限公司 | Pile forming construction method for bored pile |
| CN115108762A (en) * | 2022-05-13 | 2022-09-27 | 武汉工程大学 | Coal ash-based geopolymer material for pouring porous asphalt mixture and preparation method thereof |
| CN115340353A (en) * | 2022-08-18 | 2022-11-15 | 山东高速集团有限公司 | Grouting material for road maintenance in saline-alkali region |
| CN116813257A (en) * | 2023-07-05 | 2023-09-29 | 中冀建勘集团有限公司 | Red mud and fly ash geopolymer material capable of being used for pumping and underwater pouring, preparation method and construction process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102596848A (en) * | 2009-08-21 | 2012-07-18 | 法国运输规划和运输网科学技术学院 | Geopolymer cement and use thereof |
| US20140264140A1 (en) * | 2013-03-14 | 2014-09-18 | The Catholic University Of America | High-strength geopolymer composite cellular concrete |
| CN105314956A (en) * | 2015-10-15 | 2016-02-10 | 上海建工集团股份有限公司 | Geopolymer large-size concrete and preparation method thereof |
| CN105776915A (en) * | 2016-03-23 | 2016-07-20 | 华南理工大学 | Non-cement-based quick-setting and early-strength concrete as well as preparation method and application thereof |
-
2018
- 2018-06-11 CN CN201810595723.9A patent/CN108675699A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102596848A (en) * | 2009-08-21 | 2012-07-18 | 法国运输规划和运输网科学技术学院 | Geopolymer cement and use thereof |
| US20140264140A1 (en) * | 2013-03-14 | 2014-09-18 | The Catholic University Of America | High-strength geopolymer composite cellular concrete |
| CN105314956A (en) * | 2015-10-15 | 2016-02-10 | 上海建工集团股份有限公司 | Geopolymer large-size concrete and preparation method thereof |
| CN105776915A (en) * | 2016-03-23 | 2016-07-20 | 华南理工大学 | Non-cement-based quick-setting and early-strength concrete as well as preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李继业等: "《混凝土外加剂速查手册》", 30 June 2016, 中国建筑工业出版社 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041036A (en) * | 2019-03-20 | 2019-07-23 | 安徽理工大学 | A kind of alkali-activated carbonatite concrete material being specially adapted for underwater casting |
| CN110272237A (en) * | 2019-07-17 | 2019-09-24 | 郑州大学 | A kind of PVA fiber and steel fiber reinforced concrete |
| CN110330279A (en) * | 2019-07-17 | 2019-10-15 | 郑州大学 | A kind of preparation method of PVA fiber and steel fiber reinforced concrete |
| WO2021082767A1 (en) * | 2019-10-31 | 2021-05-06 | 国家电网有限公司 | Method for constructing reinforced fiber and metakaolin-based pressurized cast-in-place pile |
| AU2020376449B2 (en) * | 2019-10-31 | 2021-10-14 | Construction Branch Of State Grid Gansu Electric Power Corporation | Construction method of pressurized grouting pile based on reinforcing fiber and metakaolin |
| CN110984136A (en) * | 2019-11-14 | 2020-04-10 | 温州大学瓯江学院 | Construction process of pressurized geopolymer cast-in-situ bored pile |
| CN112159130A (en) * | 2020-09-04 | 2021-01-01 | 湖南省第六工程有限公司 | Geopolymer cementing material for temporary spray anchor support engineering and preparation method thereof |
| CN112299769A (en) * | 2020-11-16 | 2021-02-02 | 同济大学 | Ultrahigh molecular weight fiber-emulsified asphalt modified high-toughness geopolymer grouting material, and preparation method and application thereof |
| WO2022099935A1 (en) * | 2020-11-16 | 2022-05-19 | 同济大学 | Ultrahigh molecular weight fiber-emulsified asphalt modified high-toughness geopolymer grouting material, preparation method therefor and application thereof |
| US11981602B2 (en) | 2020-11-16 | 2024-05-14 | Tongji University | High-toughness geopolymer grouting material modified by ultra-high weight fibers and emulsified asphalt, preparation and application |
| CN112441765A (en) * | 2020-12-03 | 2021-03-05 | 广东博智林机器人有限公司 | Alkali activator, alkali-activated gel material, concrete and preparation method of concrete |
| CN112441765B (en) * | 2020-12-03 | 2022-03-18 | 广东博智林机器人有限公司 | Alkali activator, alkali-activated gel material, concrete and preparation method of concrete |
| CN113860806A (en) * | 2021-10-20 | 2021-12-31 | 武汉工程大学 | Semi-flexible asphalt pavement material filled with fly ash-based polymer and preparation method thereof |
| CN114134884A (en) * | 2021-11-11 | 2022-03-04 | 中铁大桥局集团有限公司 | Pile forming construction method for bored pile |
| CN115108762A (en) * | 2022-05-13 | 2022-09-27 | 武汉工程大学 | Coal ash-based geopolymer material for pouring porous asphalt mixture and preparation method thereof |
| CN115340353A (en) * | 2022-08-18 | 2022-11-15 | 山东高速集团有限公司 | Grouting material for road maintenance in saline-alkali region |
| CN116813257A (en) * | 2023-07-05 | 2023-09-29 | 中冀建勘集团有限公司 | Red mud and fly ash geopolymer material capable of being used for pumping and underwater pouring, preparation method and construction process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108675699A (en) | A kind of corrosion-resistant geopolymer filling concrete pile material and preparation method thereof and construction technology | |
| CN102898107B (en) | Concrete healant | |
| CN104478371B (en) | A kind of energy-saving concrete crack repairing agent | |
| CN104003681B (en) | A kind of offshore wind farm jacket injection material and constructional method thereof | |
| CN1315752C (en) | High-strength water-permeable concrete floor brick and its production method | |
| CN104402339A (en) | Pervious concrete and construction method thereof | |
| CN101549976B (en) | Concrete mixing proportion for deposition tube tunneltron segment | |
| CN106554180B (en) | A kind of cement-based material functionally gradient brick and preparation method thereof | |
| CN109384439B (en) | High-strength quick-hardening type sprayed concrete and soft rock tunnel surrounding rock sealing and reinforcing method | |
| CN106192666A (en) | A kind of permeable mortar and utilize the porous pavement that permeable mortar makes | |
| CN112679190B (en) | Reinforcing waterproof mortar for filling concrete bottom cavity | |
| CN110451878A (en) | A kind of lower shrinkage resistant abrasion superhigh tenacity concrete and preparation method thereof | |
| CN110004975B (en) | Concrete self-waterproof structure of underground engineering of residential building and construction method thereof | |
| CN109265100A (en) | A kind of super-hydrophobic injecting paste material and preparation method thereof | |
| CN111118999A (en) | Road structure of urban intersection, bus station and bus lane | |
| CN107892531A (en) | The production method of tunnel cement mortar | |
| CN105481467A (en) | Full-slag foam light soil and preparation method thereof | |
| CN105330211A (en) | High-strength self-compacting concrete | |
| CN105803942B (en) | Concrete roughening method | |
| CN107555904A (en) | A kind of new water-tight concrete | |
| CN111908853A (en) | Self-compacting soil, preparation method thereof and construction method for backfilling municipal cavity | |
| CN105016770A (en) | Bridge span reduction method and special-purposed bridge span reduction backfill material | |
| CN108383418A (en) | A kind of water-permeable cement concrete and its preparation method using inorganic powder reinforcing agent suitable for severe cold area | |
| CN106747124A (en) | A kind of very-high performance mortar for building puzzle joint | |
| CN208933767U (en) | A kind of strong concrete material structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181019 |