CN108059414A - A kind of river sand basalt fibre Reactive Powder Concrete and preparation method thereof - Google Patents
A kind of river sand basalt fibre Reactive Powder Concrete and preparation method thereof Download PDFInfo
- Publication number
- CN108059414A CN108059414A CN201810107230.6A CN201810107230A CN108059414A CN 108059414 A CN108059414 A CN 108059414A CN 201810107230 A CN201810107230 A CN 201810107230A CN 108059414 A CN108059414 A CN 108059414A
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- China
- Prior art keywords
- parts
- water
- basalt fibre
- river sand
- reactive powder
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Classifications
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- 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
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/40—Organo-silicon compounds
Abstract
The present invention discloses a kind of river sand basalt fibre Reactive Powder Concrete and preparation method thereof, include 20~40 parts of 750~950 parts of cementitious material, 1200~1500 parts of river sand, 40~55 parts of water-reducing agent, 150~190 parts of water and composite fibre or 15~35 parts of the basalt fibre handled through surface spraying in parts by weight；Wherein, cementitious material includes cement, flyash, miberal powder and silicon ash and is 4~7 by weight proportion：2~3.5：1~2.5：1~2.5；Composite fibre is basalt fibre and vinal, and the basalt fibre handled through surface spraying refers to the basalt fibre handled with organic silicon oiliness improver.The present invention also provides the preparation methods of above-mentioned Reactive Powder Concrete, by impregnating fiber, are homogenized cementitious material, water curing and steam thermal curing finished product in advance.Finished product main mechanical properties significantly improves, and has both good corrosion-resistant, high-low temperature resistant, weatherability, performance is stablized, environmentally protective, at low cost.
Description
Technical field
The invention belongs to ultra-high performance concrete technical fields, particularly a kind of river sand basalt fibre reactive powder coagulation
Soil and preparation method thereof.
Background technology
Reactive Powder Concrete is that a kind of superelevation is strong, high tenacity, high-durability, volume stability are good, has wide application
The novel super-high performance concrete of prospect.Traditional Reactive Powder Concrete is mainly by cementitious material (cement, silicon ash, fine coal
Ash, miberal powder etc.), quartz sand (or river sand), water-reducing agent, water and steel fibre be made, production technology is more mature.It produces
It is with high costs, from great, poor corrosion resistance although steel fiber activated powder concrete performance is good.With advances in technology, it is single
It is steady under all kinds of harsh working environments to concrete that the pure Reactive Powder Concrete prepared using steel fibre has been difficult to meet people
Surely the requirement of superior performance is kept.Basalt fibre has that intensity is high, good toughness, and with good durability and anticorrosive
Property, there is broad prospect of application in Reactive Powder Concrete field.
Therefore, by introducing the basalt fibre handled by unsticking in Reactive Powder Concrete or introducing basalt
Fiber and other fibers haveing excellent performance, can significantly reduce the production cost of Reactive Powder Concrete, make it have higher split
The mechanical properties such as tensile strength, compression strength, flexural strength and good heat-resisting, cold-resistant, corrosion-resistant, weatherability etc..
The content of the invention
The present invention provides a kind of river sand basalt fibre Reactive Powder Concrete and preparation method thereof, especially by following
Technology is realized.
A kind of river sand basalt fibre Reactive Powder Concrete, component in parts by weight include cementitious material 750~950
Part, 1200~1500 parts of river sand, 40~55 parts of water-reducing agent, 150~190 parts of water, further include 20~40 parts of composite fibre or through table
15~35 parts of the basalt fibre of face spray treatment；
Wherein, the cementitious material includes being 4~7 by weight proportion：2~3.5：1~2.5：1~2.5 cement, fine coal
Ash, miberal powder and silicon ash；
The composite fibre is by weight proportion 3~5：The basalt fibre and vinal of 1~2 mixing, it is described
A diameter of 25~40 μm of vinal, length are 6~15mm；The basalt fibre handled through surface spraying is warp
One or more of organic silicon oiliness improver carries out the basalt fibre of surface spraying processing；
The water-reducing agent is polycarboxylate water-reducer, including polyether-type polycarboxylic acids diminishing component and organic silicon type or polyethers
Type defoaming component.
Preferably, a kind of river sand basalt fibre Reactive Powder Concrete, component in parts by weight include cementitious material
850 parts, 1400 parts of river sand, 45 parts of water-reducing agent, 160 parts of water, 35 parts of composite fibre；Wherein, the cementitious material is included by weight
Ratio is 6：2.5：1.5：1.5 cement, flyash, miberal powder and silicon ash, the composite fibre include being 4 by weight proportion：2
Basalt fibre and vinal.
Preferably, a kind of river sand basalt fibre Reactive Powder Concrete, component in parts by weight include cementitious material
850 parts, 1400 parts of river sand, 45 parts of water-reducing agent, 160 parts of water, through surface spraying handle 27 parts of basalt fibre；Wherein, it is described
Cementitious material includes being 6 by weight proportion：2.5：1.5：1.5 cement, flyash, miberal powder and silicon ash.
The present invention also provides a kind of preparation methods of river sand basalt fibre Reactive Powder Concrete, which is characterized in that
Comprise the following steps：
S1,10 will be impregnated with water and water-reducing agent under composite fibre or the basalt fibre room temperature that is handled through surface spraying~
20min；
S2, using homogenization installation, symmetrically measured cementitious material carries out pre- homogenizing processing；
S3, first by water, water-reducing agent, soaked composite fibre or the basalt fibre handled through surface spraying and pre- homogenizing
Cementitious material 2~5min is mixed, add in river sand, be stirred for 10~20min, make fiber in Reactive Powder Concrete point
It is scattered evenly；
S4, after Reactive Powder Concrete form removal, first pass through the water curing of a period of time, water curing temperature is 20~40
DEG C, curing time is 2~4d；
S5, steam thermal curing is carried out after water curing, heating rate is no more than 15 DEG C/h, and final temperature is 75~85
DEG C, curing time is 2~4d, and cooling rate is no more than 20 DEG C/h.
Preferably, the water curing temperature of step S4 is 35 DEG C, curing time 3.5d.
Preferably, the final temperature of the steam thermal curing of step S5 is 80 DEG C, curing time 3.5d.
Compared with prior art, the invention has the beneficial effects that：
1st, introduce in the feed containing basalt fibre, the composite fibre of vinal or through organic silicon oiliness improver
The basalt fibre of surface spraying processing, compared to no fiber-reactive powder concrete, compression strength, split tensile strength, flexural strength
Etc. mechanical properties all significantly improve, and the good characteristics such as corrosion-resistant, high temperature resistant, cold-resistant, weather-proof have been had both, in extreme environment
Stability greatly improves；With the excellent properties such as at low cost, environmentally protective；
2nd, the formula and ratio of water-reducing agent are optimized, greatly reduces cost, effectively improves isolation excreting water phenomenon, diminishing
The water reducing ability of agent, defoaming are good；
3rd, the raw material type and ratio of cementitious material are optimized, had both met the Specifeca tion speeification of Reactive Powder Concrete
It is required that and it is greatly saved cost；
4th, preparation method is simple and easy to do, scientific and reasonable, the end properties parameter stability of preparation.
Specific embodiment
Technical scheme will be clearly and completely described below, it is clear that described embodiment is only
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The all other embodiment obtained under the conditions of creative work is not made, belongs to the scope of protection of the invention.
Following embodiments see the table below 1 with the raw material used in comparative example and specification.
Table 1：Raw material and specification
Examples 1 to 10, comparative example 1~9
Examples 1 to 10, the formula of the Reactive Powder Concrete of comparative example 1~9 and ratio see the table below 2.
Table 2：The formula rate of Examples 1 to 10 and the Reactive Powder Concrete of comparative example 1~9
Wherein, embodiment 1,2,3 and the cementitious material of comparative example 1,2 are respectively 850,950,750 and 1000,700 parts, and
Wherein cement, flyash, miberal powder and silicon ash are 6 by weight proportion：3：2：2, basalt fibre, vinal are by weight
Ratio is 4：2；
Embodiment 4,5 and the cementitious material of comparative example 3,4 are 850 parts, and cement, flyash, miberal powder and silicon ash are by weight
Amount ratio is respectively 7：2：1：1、4：3.5：2.5：2.5、7：2：0.5：0.5 and 4：3.5：3：3；
The composite fibre of embodiment 1,6,7 and comparative example 6,7 is basalt fibre, vinal, altogether 35 parts,
And by weight proportion respectively 4：2、5：1、3：2、5.5：1、2.5：2；
The composite fibre of embodiment 8~10 and comparative example 8,9 is respectively 27,35,15,40,10 parts and is coated with organosilicon
The basalt fibre of class oiliness improver；
The preparation method of Examples 1 to 10 and the Reactive Powder Concrete of comparative example 1~9 comprises the following steps：
S1,10 will be impregnated with water and water-reducing agent under composite fibre or the basalt fibre room temperature that is handled through surface spraying~
20min；
S2, using homogenization installation, symmetrically measured cementitious material carries out pre- homogenizing processing；
S3, first by water, water-reducing agent, soaked composite fibre or the basalt fibre handled through surface spraying and pre- homogenizing
Cementitious material 2~5min is mixed, add in river sand, be stirred for 10~20min, make fiber in Reactive Powder Concrete point
It is scattered evenly；
S4, after Reactive Powder Concrete form removal, first pass through the water curing of a period of time, water curing temperature is 35 DEG C, is supported
The shield time is 3.5d；
S5, steam thermal curing is carried out after water curing, heating rate is no more than 15 DEG C/h, and final temperature is 80 DEG C, is supported
The shield time is 3.5d, and cooling rate is no more than 20 DEG C/h.
Embodiment 11~14, comparative example 10~13
Embodiment 11~14, component formula, ratio and the preparation method of the Reactive Powder Concrete of comparative example 10~13 with
Embodiment 1 is essentially identical, and difference see the table below 3.
Table 3：In place of the difference of embodiment 1,11~14 and the preparation method of comparative example 10~13
| Group name | The water curing temperature (DEG C) of step S4 | The curing time (d) of step S5 |
| Embodiment 1 | 35 | 3.5 |
| Embodiment 11 | 40 | With embodiment 1 |
| Embodiment 12 | 20 | With embodiment 1 |
| Embodiment 13 | With embodiment 1 | 2 |
| Embodiment 14 | With embodiment 1 | 4 |
| Comparative example 10 | 45 | With embodiment 1 |
| Comparative example 11 | 15 | With embodiment 1 |
| Comparative example 12 | With embodiment 1 | 1.5 |
| Comparative example 13 | With embodiment 1 | 4.5 |
Application examples
Split tensile strength, the pressure resistance of embodiment 1~14 and the Reactive Powder Concrete of the preparation of comparative example 1~13 are detected respectively
Degree, flexural strength, the slump.Concrete outcome see the table below 3.
Table 4：Reactive Powder Concrete main performance testing result in embodiment 1~14 and comparative example 1~13
By comparing the testing result of embodiment 1,8 and comparative example 5, the reactive powder prepared by embodiment 1 and embodiment 8
The main performance of concrete is substantially more excellent, and the main performance of embodiment 1 and 8 is not much different.This explanation using basalt fibre,
Vinal prepares or uses the Reactive Powder Concrete for the basalt fibre preparation for being coated with organic silicon oiliness improver
Main performance, the Reactive Powder Concrete than being prepared only with basalt fibre are substantially more preferable.
By comparing the testing result of Examples 1 to 3, comparative example 1~2, the reactive powder prepared by Examples 1 to 3 mixes
The main performance of solidifying soil is substantially more excellent, and wherein embodiment 1 is best, illustrates that the component formula of Examples 1 to 3 and ratio are more excellent,
Embodiment 1 it is optimal.
By comparing the testing result of embodiment 1,4,5 and comparative example 3,4, the reactive powder prepared by embodiment 1,4,5
The main performance of concrete is substantially more excellent, and wherein embodiment 1 is best, illustrates that the cementitious material selected by embodiment 1,4,5 is each
Component ratio is more excellent, embodiment 1 it is optimal.
By comparing the testing result of embodiment 1,6,7,9,10 and comparative example 6~9, prepared by embodiment 1,6,7,9,10
Reactive Powder Concrete main performance it is substantially more excellent, illustrate basalt fibre and polyethylene selected by embodiment 1,6,7
The ratio of alcohol fiber is more excellent, the basalt fibre that the use of embodiment 1,9,10 is coated with organic silicon oiliness improver prepare by weight
It is more excellent to measure number scope.
By comparing the testing result of embodiment 1,11,12 and comparative example 10,11, the work prepared by embodiment 1,11,12
Property powder concrete main performance it is substantially more excellent, wherein embodiment 1 is best, illustrate using water curing temperature more excellent model
It encloses for 20~40 DEG C, and 35 DEG C optimal.
By comparing the testing result of embodiment 1,13,14 and comparative example 12,13, the work prepared by embodiment 1,13,14
Property powder concrete main performance it is substantially more excellent, wherein embodiment 1 is best, illustrates the curing time using steam thermal curing
More excellent scope is 2~4d, and 3.5d is optimal.
Claims (6)
1. a kind of river sand basalt fibre Reactive Powder Concrete, which is characterized in that component in parts by weight includes gelling material
Material 750~950 parts, 1200~1500 parts of river sand, 40~55 parts of water-reducing agent, 150~190 parts of water, further include composite fibre 20~
40 parts or 15~35 parts of the basalt fibre through surface spraying processing；
Wherein, the cementitious material includes being 4~7 by weight proportion：2~3.5：1~2.5：1~2.5 cement, flyash,
Miberal powder and silicon ash；
The composite fibre is by weight proportion 3~5：The basalt fibre and vinal of 1~2 mixing, the poly- second
A diameter of 25~40 μm of enol fiber, length are 6~15mm；The basalt fibre handled through surface spraying is through organic
One or more of silicon class oiliness improver carries out the basalt fibre of surface spraying processing；
The water-reducing agent is polycarboxylate water-reducer, is disappeared including polyether-type polycarboxylic acids diminishing component and organic silicon type or polyether-type
Steep component.
2. a kind of river sand basalt fibre Reactive Powder Concrete according to claim 1, which is characterized in that by weight
Several components includes 850 parts of cementitious material, 1400 parts of river sand, 45 parts of water-reducing agent, 160 parts of water, 35 parts of composite fibre；Wherein, institute
Stating cementitious material includes being 6 by weight proportion：2.5：1.5：1.5 cement, flyash, miberal powder and silicon ash, the composite fibre
Including being 4 by weight proportion：2 basalt fibre and vinal.
3. a kind of river sand basalt fibre Reactive Powder Concrete according to claim 1, which is characterized in that by weight
Several components includes 850 parts of cementitious material, 1400 parts of river sand, 45 parts of water-reducing agent, 160 parts of water, the Black Warrior handled through surface spraying
27 parts of rock fiber；Wherein, the cementitious material includes being 6 by weight proportion：2.5：1.5：1.5 cement, flyash, miberal powder and
Silicon ash.
A kind of 4. preparation method of river sand basalt fibre Reactive Powder Concrete described in claim 1, which is characterized in that bag
Include following steps：
S1,10~20min will be impregnated with water and water-reducing agent under composite fibre or the basalt fibre room temperature handled through surface spraying；
S2, using homogenization installation, symmetrically measured cementitious material carries out pre- homogenizing processing；
S3, first by water, water-reducing agent, soaked composite fibre or the basalt fibre handled through surface spraying and the glue that is homogenized in advance
2~5min is mixed in gel material, adds in river sand, is stirred for 10~20min, makes what fiber disperseed in Reactive Powder Concrete
Evenly；
S4, after Reactive Powder Concrete form removal, first pass through the water curing of a period of time, water curing temperature is 20~40 DEG C, is supported
The shield time is 2~4d；
S5, steam thermal curing is carried out after water curing, heating rate is no more than 15 DEG C/h, and final temperature is 75~85 DEG C, is supported
The shield time is 2~4d, and cooling rate is no more than 20 DEG C/h.
5. a kind of preparation method of river sand basalt fibre Reactive Powder Concrete according to claim 4, feature exist
In the water curing temperature of step S4 is 35 DEG C, curing time 3.5d.
6. a kind of preparation method of river sand basalt fibre Reactive Powder Concrete according to claim 4, feature exist
In the final temperature of the steam thermal curing of step S5 is 80 DEG C, curing time 3.5d.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810107230.6A CN108059414A (en) | 2018-02-02 | 2018-02-02 | A kind of river sand basalt fibre Reactive Powder Concrete and preparation method thereof |
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| CN201810107230.6A CN108059414A (en) | 2018-02-02 | 2018-02-02 | A kind of river sand basalt fibre Reactive Powder Concrete and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112960949A (en) * | 2021-02-26 | 2021-06-15 | 重庆重交再生资源开发股份有限公司 | High-performance fiber concrete and preparation method thereof |
| CN115819047A (en) * | 2023-01-05 | 2023-03-21 | 中科华坤(北京)科技有限公司 | High-durability basalt fiber concrete and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112960949A (en) * | 2021-02-26 | 2021-06-15 | 重庆重交再生资源开发股份有限公司 | High-performance fiber concrete and preparation method thereof |
| CN115819047A (en) * | 2023-01-05 | 2023-03-21 | 中科华坤(北京)科技有限公司 | High-durability basalt fiber concrete and preparation method thereof |
| CN115819047B (en) * | 2023-01-05 | 2023-09-01 | 中科华坤(北京)科技有限公司 | High-durability basalt fiber concrete and preparation method thereof |
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