CN108439919A - A kind of fibre-reinforced infiltration crystallization type concrete - Google Patents
A kind of fibre-reinforced infiltration crystallization type concrete Download PDFInfo
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- CN108439919A CN108439919A CN201810535140.7A CN201810535140A CN108439919A CN 108439919 A CN108439919 A CN 108439919A CN 201810535140 A CN201810535140 A CN 201810535140A CN 108439919 A CN108439919 A CN 108439919A
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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
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/021—Agglomerated materials, e.g. artificial aggregates agglomerated by a mineral binder, e.g. cement
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of fibre-reinforced infiltration crystallization type concretes, and by weight, raw material includes following components：120 130 parts of cement, 55 65 parts of flyash, 332 359 parts of fine aggregate, 500 560 parts of coarse aggregate, 50.5 59.5 parts of water, 0.3 0.9 parts of cellulose fibre, 3.3 3.48 parts of water-reducing agent, 22.5 27 parts of swelling agent, penetrant crystalline material 39.The present invention can realize while be promoted the working performance and basic mechanical performance of concrete, and improvement improves the economy of concrete to the inhibiting effect of certain performance when singly mixing cellulose fibre or penetrant crystalline material to expand the scope of application of engineering concrete.
Description
Technical field
The present invention relates to building material fields, and in particular to fiber increasing that is a kind of while ensureing mechanical property and working performance
Strong infiltration crystallization type concrete.
Background technology
Cement-base infiltration crystallization material is a kind of novel rigid material, and active chemistry therein can penetrate into coagulation
It is native internal, it reacts with unhydrated cement granules, generates insoluble crystalline material, be filled in distress in concrete or gap
In, play the role of air-free concrete, improve intensity, improve the performance of concrete, extend its service life, is improved in engineering
Mechanical performance of concrete and the common additive of waterproof impervious characteristic.
It is the means that concrete performance is commonly improved in engineering that fiber is added in concrete, and the addition of fiber can change
Kind concrete work, mechanics etc. performance.Cellulose fibre is new and high technology material of new generation, higher with elasticity modulus,
The advantages that easily disperseing and be good with concrete bond performance.At present about cellulose fibre concrete early anti-cracking behavior and impermeability
Can research it has been reported that but based on its superior structural and other additives interact in terms of the improvement to performance research compared with
It is few.
Invention content
The technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, provide one kind and make up singly mixing fiber
To the incomplete shortcoming of performance improvement under cellulose fiber or penetrant crystalline material, while enhancing the working performance and mechanics of concrete
Performance is realized and plays interaction facilitation while performance mutually makes up.
The present invention is realized using following scheme：
A kind of fibre-reinforced infiltration crystallization type concrete, by weight, which includes following components：Cement
120-130 parts, 55-65 parts of flyash, 332-359 parts of fine aggregate, 500-560 parts of coarse aggregate, 50.5-59.5 parts of water, fiber
0.3-0.9 parts, 3.3-3.48 parts of water-reducing agent, 22.5-27 parts of swelling agent, 3-9 parts of penetrant crystalline material.
Further, the cement is PO42.5 class g cements.
Further, the flyash is I grade of flyash.
Further, the fine aggregate is sand in continuous grading.
Further, the coarse aggregate is the continuous grading rubble that grain size is 5mm-15mm.
Further, the fiber is cellulose fibre, length 2-3mm, elasticity modulus 8-10Gpa, tensile strength
For 800-900MPa.
Further, the water-reducing agent is polycarboxylate superplasticizer mother liquor.
Further, the solid content of the polycarboxylate superplasticizer mother liquor is 40wt%.
Further, the swelling agent is calcium sulphoaluminate-calcium oxide composite expanding agent.
Further, the penetrant crystalline material is activated silica penetrant crystalline masterbatch.
Compared with prior art, the invention has the advantages that：
1, the volume of permeable crystallization type material and cellulose fibre is positively correlated with concrete slump and negatively correlated respectively
Relationship, i.e., cellulose fibre incorporation can to a certain degree reduce concrete slump；And penetrant crystalline material can increase coagulation
The mobile performance of soil.When mixing both additives simultaneously in concrete, permeable crystallization type material can slow down cellulose fiber
The reduction to concrete slump is tieed up, the defect that working performance is lost when being individually added into cellulose fibre is made up.
2, in the concrete sample of compound incorporation cellulose fiber peacekeeping penetrant crystalline material, the permeable crystallization type of appropriate volume
Material can generate synergistic effect with cellulose fibre and be oozed that is, on the basis of cellulose fibre promotes concrete crushing strength
Saturating crystalline materials improve cellulose fibre to mixing the humidification of test specimen compression strength again simultaneously again, the examination for both making to mix again
Part has in compression strength to be promoted by a relatively large margin.
3, production process of the present invention is simple, can direct plunge into Practical Project.
Specific implementation mode
It to make the objectives, technical solutions, and advantages of the present invention more comprehensible, below will be by specific implementation, to this hair
Bright to be described in further detail, embodiments of the present invention are not limited thereto.
The slump and resistance to compression axial compressive strength of following gained concrete are according to GB/T 50080-2002《It is common mixed
Solidifying soil mixture method for testing performance standard》And GB/50081-2002《Standard for test methods of mechanical properties of ordinary concrete》Into
Row experimental test.
Embodiment 1
A kind of fibre-reinforced infiltration crystallization type concrete, by weight, which includes following components：Cement
130 parts, 65 parts of flyash, 350 parts of fine aggregate, 550 parts of coarse aggregate, 57 parts of water, 3.3 parts of water-reducing agent, 25 parts of swelling agent, cellulose
0.3 part of fiber, 3 parts of penetrant crystalline material.
The cement is PO42.5 class g cements.The flyash is I grade of flyash.The fine aggregate is in continuous grading
Sand.The coarse aggregate is the continuous grading rubble that grain size is 5mm-15mm.The length of the cellulose fibre is 2-3mm, elasticity
Modulus is 8-10Gpa, tensile strength 800-900MPa.The water-reducing agent is that the polycarboxylate water-reducer that solid content is 40wt% is female
Liquid.The swelling agent is calcium sulphoaluminate-calcium oxide composite expanding agent.The penetrant crystalline material is activated silica penetrant crystalline
Masterbatch, main component is high efficiency water reducing agent, early strength agent, active anion catalyst, special cement and quartz sand etc., by certain ratio
Example is prepared.
Embodiment 2
A kind of fibre-reinforced infiltration crystallization type concrete, by weight, which includes following components：Cement
130 parts, 65 parts of flyash, 350 parts of fine aggregate, 550 parts of coarse aggregate, 57 parts of water, 3.3 parts of water-reducing agent, 25 parts of swelling agent, cellulose
0.6 part of fiber, 3 parts of penetrant crystalline material.
The cement is PO42.5 class g cements.The flyash is I grade of flyash.The fine aggregate is in continuous grading
Sand.The coarse aggregate is the continuous grading rubble that grain size is 5mm-15mm.The length of the cellulose fibre is 2-3mm, elasticity
Modulus is 8-10Gpa, tensile strength 800-900MPa.The water-reducing agent is that the polycarboxylate water-reducer that solid content is 40wt% is female
Liquid.The swelling agent is calcium sulphoaluminate-calcium oxide composite expanding agent.The penetrant crystalline material is activated silica penetrant crystalline
Masterbatch, main component is high efficiency water reducing agent, early strength agent, active anion catalyst, special cement and quartz sand etc., by certain ratio
Example is prepared.
Embodiment 3
A kind of fibre-reinforced infiltration crystallization type concrete, by weight, which includes following components：Cement
130 parts, 65 parts of flyash, 350 parts of fine aggregate, 550 parts of coarse aggregate, 57 parts of water, 3.3 parts of water-reducing agent, 25 parts of swelling agent, cellulose
0.9 part of fiber, 3 parts of penetrant crystalline material.
The cement is PO42.5 class g cements.The flyash is I grade of flyash.The fine aggregate is in continuous grading
Sand.The coarse aggregate is the continuous grading rubble that grain size is 5mm-15mm.The length of the cellulose fibre is 2-3mm, elasticity
Modulus is 8-10Gpa, tensile strength 800-900MPa.The water-reducing agent is that the polycarboxylate water-reducer that solid content is 40wt% is female
Liquid.The swelling agent is calcium sulphoaluminate-calcium oxide composite expanding agent.The penetrant crystalline material is activated silica penetrant crystalline
Masterbatch, main component is high efficiency water reducing agent, early strength agent, active anion catalyst, special cement and quartz sand etc., by certain ratio
Example is prepared.
Embodiment 4
A kind of fibre-reinforced infiltration crystallization type concrete, by weight, which includes following components：Cement
125 parts, 60 parts of flyash, 340 parts of fine aggregate, 540 parts of coarse aggregate, 56 parts of water, 3.3 parts of water-reducing agent, 25 parts of swelling agent, cellulose
0.3 part of fiber, 6 parts of penetrant crystalline material.
The cement is PO42.5 class g cements.The flyash is I grade of flyash.The fine aggregate is in continuous grading
Sand.The coarse aggregate is the continuous grading rubble that grain size is 5mm-15mm.The length of the cellulose fibre is 2-3mm, elasticity
Modulus is 8-10Gpa, tensile strength 800-900MPa.The water-reducing agent is that the polycarboxylate water-reducer that solid content is 40wt% is female
Liquid.The swelling agent is calcium sulphoaluminate-calcium oxide composite expanding agent.The penetrant crystalline material is activated silica penetrant crystalline
Masterbatch, main component is high efficiency water reducing agent, early strength agent, active anion catalyst, special cement and quartz sand etc., by certain ratio
Example is prepared.
Embodiment 5
A kind of fibre-reinforced infiltration crystallization type concrete, by weight, which includes following components：Cement
125 parts, 60 parts of flyash, 340 parts of fine aggregate, 540 parts of coarse aggregate, 56 parts of water, 3.3 parts of water-reducing agent, 25 parts of swelling agent, cellulose
0.6 part of fiber, 6 parts of penetrant crystalline material.
The cement is PO42.5 class g cements.The flyash is I grade of flyash.The fine aggregate is in continuous grading
Sand.The coarse aggregate is the continuous grading rubble that grain size is 5mm-15mm.The length of the cellulose fibre is 2-3mm, elasticity
Modulus is 8-10Gpa, tensile strength 800-900MPa.The water-reducing agent is that the polycarboxylate water-reducer that solid content is 40wt% is female
Liquid.The swelling agent is calcium sulphoaluminate-calcium oxide composite expanding agent.The penetrant crystalline material is activated silica penetrant crystalline
Masterbatch, main component is high efficiency water reducing agent, early strength agent, active anion catalyst, special cement and quartz sand etc., by certain ratio
Example is prepared.
Embodiment 6
A kind of fibre-reinforced infiltration crystallization type concrete, by weight, which includes following components：Cement
125 parts, 60 parts of flyash, 340 parts of fine aggregate, 540 parts of coarse aggregate, 56 parts of water, 3.3 parts of water-reducing agent, 25 parts of swelling agent, cellulose
0.9 part of fiber, 6 parts of penetrant crystalline material.
The cement is PO42.5 class g cements.The flyash is I grade of flyash.The fine aggregate is in continuous grading
Sand.The coarse aggregate is the continuous grading rubble that grain size is 5mm-15mm.The length of the cellulose fibre is 2-3mm, elasticity
Modulus is 8-10Gpa, tensile strength 800-900MPa.The water-reducing agent is that the polycarboxylate water-reducer that solid content is 40wt% is female
Liquid.The swelling agent is calcium sulphoaluminate-calcium oxide composite expanding agent.The penetrant crystalline material is activated silica penetrant crystalline
Masterbatch, main component is high efficiency water reducing agent, early strength agent, active anion catalyst, special cement and quartz sand etc., by certain ratio
Example is prepared.
Embodiment 7
A kind of fibre-reinforced infiltration crystallization type concrete, by weight, which includes following components：Cement
120 parts, 55 parts of flyash, 335 parts of fine aggregate, 530 parts of coarse aggregate, 55 parts of water, 3.3 parts of water-reducing agent, 25 parts of swelling agent, cellulose
0.3 part of fiber, 9 parts of penetrant crystalline material.
The cement is PO42.5 class g cements.The flyash is I grade of flyash.The fine aggregate is in continuous grading
Sand.The coarse aggregate is the continuous grading rubble that grain size is 5mm-15mm.The length of the cellulose fibre is 2-3mm, elasticity
Modulus is 8-10Gpa, tensile strength 800-900MPa.The water-reducing agent is that the polycarboxylate water-reducer that solid content is 40wt% is female
Liquid.The swelling agent is calcium sulphoaluminate-calcium oxide composite expanding agent.The penetrant crystalline material is activated silica penetrant crystalline
Masterbatch, main component is high efficiency water reducing agent, early strength agent, active anion catalyst, special cement and quartz sand etc., by certain ratio
Example is prepared.
Embodiment 8
A kind of fibre-reinforced infiltration crystallization type concrete, by weight, which includes following components：Cement
120 parts, 55 parts of flyash, 335 parts of fine aggregate, 530 parts of coarse aggregate, 55 parts of water, 3.3 parts of water-reducing agent, 25 parts of swelling agent, cellulose
0.6 part of fiber, 9 parts of penetrant crystalline material.
The cement is PO42.5 class g cements.The flyash is I grade of flyash.The fine aggregate is in continuous grading
Sand.The coarse aggregate is the continuous grading rubble that grain size is 5mm-15mm.The length of the cellulose fibre is 2-3mm, elasticity
Modulus is 8-10Gpa, tensile strength 800-900MPa.The water-reducing agent is that the polycarboxylate water-reducer that solid content is 40wt% is female
Liquid.The swelling agent is calcium sulphoaluminate-calcium oxide composite expanding agent.The penetrant crystalline material is activated silica penetrant crystalline
Masterbatch, main component is high efficiency water reducing agent, early strength agent, active anion catalyst, special cement and quartz sand etc., by certain ratio
Example is prepared.
Embodiment 9
A kind of fibre-reinforced infiltration crystallization type concrete, by weight, which includes following components：Cement
120 parts, 55 parts of flyash, 335 parts of fine aggregate, 530 parts of coarse aggregate, 55 parts of water, 3.4 parts of water-reducing agent, 25 parts of swelling agent, cellulose
0.9 part of fiber, 9 parts of penetrant crystalline material.
The cement is PO42.5 class g cements.The flyash is I grade of flyash.The fine aggregate is in continuous grading
Sand.The coarse aggregate is the continuous grading rubble that grain size is 5mm-15mm.The length of the cellulose fibre is 2-3mm, elasticity
Modulus is 8-10Gpa, tensile strength 800-900MPa.The water-reducing agent is that the polycarboxylate water-reducer that solid content is 40wt% is female
Liquid.The swelling agent is calcium sulphoaluminate-calcium oxide composite expanding agent.The penetrant crystalline material is activated silica penetrant crystalline
Masterbatch, main component is high efficiency water reducing agent, early strength agent, active anion catalyst, special cement and quartz sand etc., by certain ratio
Example is prepared.
Table 1：The performance test of case study on implementation 1-9
Table 1
| The slump (mm) | Axial compressive strength (N/mm2) | |
| Case study on implementation 1 | 150 | 33.7 |
| Case study on implementation 2 | 130 | 34.5 |
| Case study on implementation 3 | 120 | 35.8 |
| Case study on implementation 4 | 160 | 40.2 |
| Case study on implementation 5 | 150 | 41.7 |
| Case study on implementation 6 | 130 | 42.2 |
| Case study on implementation 7 | 170 | 35.1 |
| Case study on implementation 8 | 150 | 37.5 |
| Case study on implementation 9 | 150 | 38.2 |
As shown in Table 1：
The permeable crystallization type material of concrete sample identical for cellulose fibre volume, 3 kinds of volumes improves fibre
The slump of cellulose fiber concrete, promotion amplitude are improved with the increase of permeable crystallization type material；For different cellulose fibers
Volume is tieed up, when permeable crystallization type material volume is identical, the promotion amplitude of the slump is almost the same.
When cellulose fibre volume is constant, concrete crushing strength increases with permeable crystallization type material volume and presents and first carry
The process reduced after height, and compression strength is apparently higher than other two volumes when volume is appropriate；When permeable crystallization type material is mixed
When amount remains unchanged, the volume correlation of concrete crushing strength and cellulose fibre, but cellulose fibre volume
Increase little to the increase rate of compression strength.It is worth noting that, when permeable crystallization type material volume is low, no matter mix how much
Cellulose fibre, compression strength is mixed test piece intensity with low-dosage permeable crystallization type bill of materials and is approached, and is below blank control
Group and mix test specimen with the cellulose fibre list of volume；Test specimen compression strength and blank are mixed in answering for the permeable crystallization type material of high additive
Group is close, and slightly above high additive permeable crystallization type bill of materials mixes test specimen, but still mixes examination less than the cellulose fibre list with volume
Part；It is obviously improved when permeable crystallization type material volume where appropriate, mixing test specimen compression strength again, compression strength has been even more than together
The cellulose fibre list of volume mixes test specimen.
The object, technical solutions and advantages of the present invention are further described in detail in present embodiment, should say
Bright, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all spirit in the present invention
Within principle, made by all any modification, equivalent and improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of fibre-reinforced infiltration crystallization type concrete, which is characterized in that by weight, which includes with the following group
Point：120-130 parts of cement, 55-65 parts of flyash, 332-359 parts of fine aggregate, 500-560 parts of coarse aggregate, 50.5-59.5 parts of water,
0.3-0.9 parts of fiber, 3.3-3.48 parts of water-reducing agent, 22.5-27 parts of swelling agent, 3-9 parts of penetrant crystalline material.
2. a kind of fibre-reinforced infiltration crystallization type concrete according to claim 1, which is characterized in that the cement
For PO42.5 class g cements.
3. a kind of fibre-reinforced infiltration crystallization type concrete according to claim 1, which is characterized in that the flyash
For I grade of flyash.
4. a kind of fibre-reinforced infiltration crystallization type concrete according to claim 1, which is characterized in that the fine aggregate
For sand in continuous grading.
5. a kind of fibre-reinforced infiltration crystallization type concrete according to claim 1, which is characterized in that the coarse aggregate
It is the continuous grading rubble that grain size is 5mm-15mm.
6. a kind of fibre-reinforced infiltration crystallization type concrete according to claim 1, which is characterized in that the fiber is
Cellulose fibre, the length of 2-3mm, elasticity modulus 8-10Gpa, tensile strength 800-900MPa.
7. a kind of fibre-reinforced infiltration crystallization type concrete according to claim 1, which is characterized in that the water-reducing agent
It is polycarboxylate superplasticizer mother liquor.
8. a kind of fibre-reinforced infiltration crystallization type concrete according to claim 7, which is characterized in that the polycarboxylic acids
The solid content of water-reducing agent mother liquor is 40wt%.
9. a kind of fibre-reinforced infiltration crystallization type concrete according to claim 1, which is characterized in that the expansion
Agent is calcium sulphoaluminate-calcium oxide composite expanding agent.
10. a kind of fibre-reinforced infiltration crystallization type concrete according to claim 1, which is characterized in that the infiltration
Crystalline material is activated silica penetrant crystalline masterbatch.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793884A (en) * | 2018-07-24 | 2018-11-13 | 华南理工大学 | A kind of infiltration crystallization type concrete of precenting chlorate corrosion |
| CN110668750A (en) * | 2019-09-25 | 2020-01-10 | 中建西部建设北方有限公司 | Special high-impermeability compensation shrinkage concrete for urban underground comprehensive pipe gallery and preparation method thereof |
| CN113006818A (en) * | 2021-02-23 | 2021-06-22 | 福州大学 | Novel stainless steel impervious segment and preparation method thereof |
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| CN106495601A (en) * | 2015-10-28 | 2017-03-15 | 浙江横店建筑工程有限公司 | Injection Basalt fiber concrete and slope retaining surface construction method |
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| CN106495601A (en) * | 2015-10-28 | 2017-03-15 | 浙江横店建筑工程有限公司 | Injection Basalt fiber concrete and slope retaining surface construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793884A (en) * | 2018-07-24 | 2018-11-13 | 华南理工大学 | A kind of infiltration crystallization type concrete of precenting chlorate corrosion |
| CN110668750A (en) * | 2019-09-25 | 2020-01-10 | 中建西部建设北方有限公司 | Special high-impermeability compensation shrinkage concrete for urban underground comprehensive pipe gallery and preparation method thereof |
| CN113006818A (en) * | 2021-02-23 | 2021-06-22 | 福州大学 | Novel stainless steel impervious segment and preparation method thereof |
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