CN109650799A - A kind of preparation method of high intensity precast bridge plate concrete - Google Patents
A kind of preparation method of high intensity precast bridge plate concrete Download PDFInfo
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- CN109650799A CN109650799A CN201910103095.2A CN201910103095A CN109650799A CN 109650799 A CN109650799 A CN 109650799A CN 201910103095 A CN201910103095 A CN 201910103095A CN 109650799 A CN109650799 A CN 109650799A
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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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/90—Electrical properties
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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
- 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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Abstract
The present invention relates to concrete formulation technical field, specifically a kind of preparation method of high-intensitive precast bridge plate concrete；The composition of the high-intensitive precast bridge plate concrete are as follows: mass fraction is 400-500 parts of cement, 1600-1800 parts of sand-mix, 10-15 parts of water-reducing agent, 5-10 parts of reinforcing agent, 6-8 parts of curing agent, 4-6 parts of synergist, 10-20 parts of adjuvant.Concrete prepared by the present invention is by using material compositions such as cement, sand-mix, water-reducing agent, reinforcing agent, curing agent, synergist, adjuvants, using the precast bridge plate of its preparation is high with intensity, durability is good, corrosion resistance is strong, while its production cost is relatively low.
Description
Technical field
The invention belongs to concrete formulation technical fields, and in particular to a kind of system of high intensity precast bridge plate concrete
Preparation Method.
Background technique
Concrete prefabricated bridge plate has the excellent spy that intensity is high, durability is good, corrosion-resistant, processing cost is relatively low
Property.The technique that current concrete prefabricated bridge plate mostly uses greatly is to be manufactured in factory, then spliced on-site,
It has many advantages, such as that construction period is shorter, and molding is quick and is not affected by the weather.However, with the development of modern science and technology, vapour
Vehicle vehicle capacity further increases, and to the intensity of bridge plate, more stringent requirements are proposed, and existing bridge plate is using one
After the section time, the influence of climate or overload, surface often will appear crack, this also promotes concrete prefabricated bridge plate in entirety
Requirements at the higher level are proposed in terms of mechanical property and heat-resisting property again, and existing concrete prefabricated bridge plate in mechanical property and resists
Performance in the case of alternating temperature is difficult to meet its requirement.
In view of the problems of the existing technology, the present invention have developed a kind of high-intensitive precast bridge plate concrete can be very
Good solution issue noted above.
Summary of the invention
In order to achieve the purpose that in background technique, a kind of system of high-intensitive precast bridge plate concrete proposed by the present invention
Preparation Method；
What the present invention realized by the following technical solutions:
A kind of preparation method of high intensity precast bridge plate concrete, the following steps are included:
A kind of preparation method of high intensity precast bridge plate concrete, which is characterized in that the prefabricated bridge of high intensity
The composition of beam slab concrete are as follows: mass fraction is 400-500 parts of cement, 1600-1800 parts of sand-mix, 10-15
Water-reducing agent, 5-10 parts of the reinforcing agent, 6-8 parts of curing agent, 4-6 parts of synergist, 10-20 parts of adjuvant of part；
A kind of described high-intensitive precast bridge plate concrete the preparation method comprises the following steps: being 400-500 parts by mass fraction
Cement, 1600-1800 parts of sand-mix, 10-15 parts of water-reducing agent, 5-10 parts of reinforcing agent, 6-8 parts of curing agent,
4-6 parts of synergist, 10-20 parts of adjuvant are added in blender and are mixed, and suitable water is added after mixing, carry out
Secondary agitation obtains mixture, which is exactly high-intensitive precast bridge plate concrete.
Further, the water-reducing agent are as follows: by mass fraction be 5-10 parts of polyester polyol, 4-6 parts of dodecyl
Reaction kettle is added in potassium sulfonate, 5-8 parts of poly- sodium carboxymethylcellulose pyce, 5-10 parts of malic acid, 1-3 parts of glycerol, 20-30 parts of water
In, temperature of reaction kettle is controlled at 40-60 DEG C, and the substance obtained after carrying out hybrid reaction 20-30 minutes, which is exactly diminishing
Agent, polyester polyol play thickening power, and potassium dodecanesulfonate plays osmosis, and poly- sodium carboxymethylcellulose pyce plays thickening and makees
With malic acid plays hygroscopic effect, and glycerol plays thickening power, which is combined by using many kinds of substance makes each substance
Between effect reach trade-off effect, effectively improve the mechanical property of concrete.
Further, the curing agent are as follows: by mass fraction be 6-12 parts of sodium metasilicate, 4-6 parts of ten sulfate dihydrate aluminium
Potassium, 2-4 parts of aluminium chloride, 5-10 parts of calcium phosphate are added in batch mixer and are mixed, the substance obtained after mixing, the object
Matter with regard to curing agent, is combined by many kinds of substance, so that it is quickly formed covering film in concrete surface, while seeping
Fine and close, hard surface layer is formed in permeable layers, is prevented the evaporation of moisture in cement concrete, is made the abundant aquation of cement and reach autotrophy mesh
's.
Further, the synergist are as follows: the methacrylic acid-acrylic acid hydroxyl ethyl ester-first for being 5-10 parts by mass fraction
Base propylene acrylate copolymer, 4-5 parts of melamine, 3-6 parts of basic copper carbonate, 5-8 parts of polyamide, 4-8 parts of poly-vinegar
Acid cellulose is added in batch mixer and is mixed, and the substance obtained after mixing, the substance is exactly synergist, metering system
Acid-hydroxy-ethyl acrylate-metering system acrylate copolymer plays the role of constructing the mechanical property that spatial network improves concrete
Can, melamine plays induration, and basic copper carbonate, which plays corrosion-resisting function, prevents concrete reinforcing steel from corroding, and polyamide rises
The resistance of concrete is improved to insulating effect, poly-vinegar acid cellulose plays the role of promoting each component fusion, passes through various objects
The combination of matter promotes its effect to be higher than single component effect, the shrinking percentage of concrete is promoted to reduce, and improves impervious, frost resistance
Etc. performances.
Further, the sand-mix are as follows: will be medium coarse sand, middle sand, thin using the manual sandstone of primary standard class
The substance that sand, ultra fine sand are obtained after mixing according to the ratio that mass ratio is 10-20:6-12:4-6:1-3, by each
The sandstone of kind size is combined, and is effectively raised the contact area between aggregate, is effectively increased the mechanical property of concrete
Energy.
Further, the cement are as follows: the cement of selection is the high-mark cement marked as 42.5 or 52.5.
Further, the adjuvant are as follows: by mass fraction be 30-40 parts of slag powders, 20-25 parts of flyash, 10-
15 parts of iron ore tailings powder, 5-10 parts of bauxite residue are added in batch mixer and are mixed, and the substance obtained after mixing should
Substance is exactly adjuvant, and by the way that the substance is added, the further contact area improved between concrete effectively improves concrete
Mechanical property, while reducing use cost.
Further, the reinforcing agent are as follows: by mass fraction be 20-30 parts of glass fibre, 5-10 parts of carbon fiber, 4-
8 parts of asbestos, 5-8 parts of silicon carbide are added in batch mixer and are mixed, and the substance obtained after mixing, the substance is exactly to increase
Strong agent makes it form network-like structure in concrete, effectively enhances the tensile property of concrete by the way that the substance is added.
Beneficial to benefit
Concrete prepared by the present invention is by using cement, sand-mix, water-reducing agent, reinforcing agent, curing agent, synergy
The material compositions such as agent, adjuvant, using the precast bridge plate of its preparation is high with intensity, durability is good, corrosion resistance is strong, together
When its production cost it is relatively low.
Specific embodiment
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, below in conjunction with experimental data, to this
The preferred embodiment of invention is described in detail, to facilitate the technical staff to understand.
Embodiment 1
A kind of preparation method of high intensity precast bridge plate concrete, the following steps are included:
A kind of preparation method of high intensity precast bridge plate concrete, which is characterized in that the prefabricated bridge of high intensity
The composition of beam slab concrete are as follows: mass fraction is 450 parts of cement, 1700 parts of sand-mix, 10 parts of water-reducing agent, 5
Reinforcing agent, 8 parts of the curing agent, 4 parts of synergist, 20 parts of adjuvant of part；
A kind of described high-intensitive precast bridge plate concrete the preparation method comprises the following steps: the water for being 450 parts by mass fraction
Mud, 1700 parts of sand-mix, 10 parts of water-reducing agent, 5 parts of reinforcing agent, 8 parts of curing agent, 4 parts of synergist, 20 parts
Adjuvant is added in blender and is mixed, and suitable water is added after mixing, carries out secondary agitation, obtains mixture, should
Mixture is exactly high-intensitive precast bridge plate concrete.
Further, the water-reducing agent are as follows: by mass fraction be 9 parts of polyester polyol, 6 parts of dodecyl sodium sulfonate
Potassium, 6 parts of poly- sodium carboxymethylcellulose pyce, 8 parts of malic acid, 1 part of glycerol, 27 parts of water are added in reaction kettle, temperature of reaction kettle
Control is at 40-60 DEG C, and the substance obtained after carrying out hybrid reaction 20-30 minutes, which is exactly water-reducing agent, and the substance is by making
Being combined with many kinds of substance makes the effect between each substance reach trade-off effect, effectively improves the water-reducing effect of concrete.
Further, the curing agent are as follows: by mass fraction be 9 parts of sodium metasilicate, 4 parts of Potassium aluminum sulfate dodecahydrate, 2 parts
Aluminium chloride, 7 parts of calcium phosphate be added in batch mixer and mixed, the substance obtained after mixing, the substance with regard to curing agent,
It is combined by many kinds of substance, so that it is quickly formed covering film in concrete surface, while being formed in permeable formation
Fine and close, hard surface layer prevents the evaporation of moisture in cement concrete, makes the abundant aquation of cement and reach autotrophy purpose.
Further, the synergist are as follows: the methacrylic acid-acrylic acid hydroxyl ethyl ester-methyl-prop for being 9 parts by mass fraction
Alkene acrylate copolymer, 5 parts of melamine, 5 parts of basic copper carbonate, 7 parts of polyamide, 6 parts of poly-vinegar acid cellulose are added
It being mixed in batch mixer, the substance obtained after mixing, the substance is exactly synergist, by the combination of various substances,
Promote its effect to be higher than single component effect, the shrinking percentage of concrete is promoted to reduce, improves impervious, the performances such as frost resistance.
Further, the sand-mix are as follows: will be medium coarse sand, middle sand, thin using the manual sandstone of primary standard class
The substance that sand, ultra fine sand are obtained after mixing according to the ratio that mass ratio is 10:8:4:3, passes through the sand of various sizes
Stone is combined, and effectively raises the contact area between aggregate, effectively increases the mechanical property of concrete.
Further, the cement are as follows: the cement of selection is the high-mark cement marked as 42.5 or 52.5.
Further, the adjuvant are as follows: by mass fraction be 35 parts of slag powders, 25 parts of flyash, 12 parts of iron
Mine ground slag, 8 parts of bauxite residue are added in batch mixer and are mixed, and the substance obtained after mixing, the substance is exactly auxiliary
Auxiliary agent, by the way that the substance is added, the further contact area improved between concrete effectively improves the mechanical property of concrete
Can, while reducing use cost.
Further, the reinforcing agent are as follows: by mass fraction be 25 parts of glass fibre, 8 parts of carbon fiber, 6 parts of stone
Cotton, 7 parts of silicon carbide are added in batch mixer and are mixed, and the substance obtained after mixing, the substance is exactly reinforcing agent, is passed through
The substance is added, it is made to form network-like structure in concrete, effectively enhances the tensile property of concrete.
Embodiment 2
A kind of preparation method of high intensity precast bridge plate concrete, the following steps are included:
A kind of preparation method of high intensity precast bridge plate concrete, which is characterized in that the prefabricated bridge of high intensity
The composition of beam slab concrete are as follows: mass fraction is 500 parts of cement, 1600 parts of sand-mix, 15 parts of water-reducing agent, 8
Reinforcing agent, 8 parts of the curing agent, 5 parts of synergist, 15 parts of adjuvant of part；
A kind of described high-intensitive precast bridge plate concrete the preparation method comprises the following steps: the water for being 500 parts by mass fraction
Mud, 1600 parts of sand-mix, 15 parts of water-reducing agent, 8 parts of reinforcing agent, 8 parts of curing agent, 5 parts of synergist, 15 parts
Adjuvant is added in blender and is mixed, and suitable water is added after mixing, carries out secondary agitation, obtains mixture, should
Mixture is exactly high-intensitive precast bridge plate concrete.
Further, the water-reducing agent are as follows: by mass fraction be 8 parts of polyester polyol, 5 parts of dodecyl sodium sulfonate
Potassium, 8 parts of poly- sodium carboxymethylcellulose pyce, 8 parts of malic acid, 2 parts of glycerol, 25 parts of water are added in reaction kettle, temperature of reaction kettle
Control is at 40-60 DEG C, and the substance obtained after carrying out hybrid reaction 20-30 minutes, which is exactly water-reducing agent, and the substance is by making
Being combined with many kinds of substance makes the effect between each substance reach trade-off effect, effectively improves the water-reducing effect of concrete.
Further, the curing agent are as follows: by mass fraction be 10 parts of sodium metasilicate, 6 parts of Potassium aluminum sulfate dodecahydrate, 3
The aluminium chloride of part, 10 parts of calcium phosphate are added in batch mixer and are mixed, and the substance obtained after mixing, the substance just conserves
Agent is combined by many kinds of substance, it is made to quickly form covering film, while the shape in permeable formation in concrete surface
At fine and close, hard surface layer, the evaporation of moisture in cement concrete is prevented, makes the abundant aquation of cement and reaches autotrophy purpose.
Further, the synergist are as follows: the methacrylic acid-acrylic acid hydroxyl ethyl ester-methyl-prop for being 6 parts by mass fraction
Alkene acrylate copolymer, 5 parts of melamine, 5 parts of basic copper carbonate, 6 parts of polyamide, 5 parts of poly-vinegar acid cellulose are added
It being mixed in batch mixer, the substance obtained after mixing, the substance is exactly synergist, by the combination of various substances,
Promote its effect to be higher than single component effect, the shrinking percentage of concrete is promoted to reduce, improves impervious, the performances such as frost resistance.
Further, the sand-mix are as follows: will be medium coarse sand, middle sand, thin using the manual sandstone of primary standard class
The substance that sand, ultra fine sand are obtained after mixing according to the ratio that mass ratio is 15:6:4:2, passes through the sand of various sizes
Stone is combined, and effectively raises the contact area between aggregate, effectively increases the mechanical property of concrete.
Further, the cement are as follows: the cement of selection is the high-mark cement marked as 52.5.
Further, the adjuvant are as follows: by mass fraction be 35 parts of slag powders, 25 parts of flyash, 12 parts of iron
Mine ground slag, 8 parts of bauxite residue are added in batch mixer and are mixed, and the substance obtained after mixing, the substance is exactly auxiliary
Auxiliary agent, by the way that the substance is added, the further contact area improved between concrete effectively improves the mechanical property of concrete
Can, while reducing use cost.
Further, the reinforcing agent are as follows: by mass fraction be 25 parts of glass fibre, 10 parts of carbon fiber, 4 parts of stone
Cotton, 6 parts of silicon carbide are added in batch mixer and are mixed, and the substance obtained after mixing, the substance is exactly reinforcing agent, is passed through
The substance is added, it is made to form network-like structure in concrete, effectively enhances the tensile property of concrete.
Embodiment 3
A kind of preparation method of high intensity precast bridge plate concrete, the following steps are included:
A kind of preparation method of high intensity precast bridge plate concrete, which is characterized in that the prefabricated bridge of high intensity
The composition of beam slab concrete are as follows: mass fraction is 400 parts of cement, 1800 parts of sand-mix, 10 parts of water-reducing agent, 5
Reinforcing agent, 6 parts of the curing agent, 4 parts of synergist, 10 parts of adjuvant of part；
A kind of described high-intensitive precast bridge plate concrete the preparation method comprises the following steps: the water for being 400 parts by mass fraction
Mud, 1800 parts of sand-mix, 10 parts of water-reducing agent, 5 parts of reinforcing agent, 6 parts of curing agent, 4 parts of synergist, 10 parts
Adjuvant is added in blender and is mixed, and suitable water is added after mixing, carries out secondary agitation, obtains mixture, should
Mixture is exactly high-intensitive precast bridge plate concrete.
Further, the water-reducing agent are as follows: by mass fraction be 5 parts of polyester polyol, 4 parts of dodecyl sodium sulfonate
Potassium, 5 parts of poly- sodium carboxymethylcellulose pyce, 5 parts of malic acid, 1 part of glycerol, 20 parts of water are added in reaction kettle, temperature of reaction kettle
Control is at 40-60 DEG C, and the substance obtained after carrying out hybrid reaction 20-30 minutes, which is exactly water-reducing agent, and the substance is by making
Being combined with many kinds of substance makes the effect between each substance reach trade-off effect, effectively improves the water-reducing effect of concrete.
Further, the curing agent are as follows: by mass fraction be 6 parts of sodium metasilicate, 4 parts of Potassium aluminum sulfate dodecahydrate, 2 parts
Aluminium chloride, 5 parts of calcium phosphate be added in batch mixer and mixed, the substance obtained after mixing, the substance with regard to curing agent,
It is combined by many kinds of substance, so that it is quickly formed covering film in concrete surface, while being formed in permeable formation
Fine and close, hard surface layer prevents the evaporation of moisture in cement concrete, makes the abundant aquation of cement and reach autotrophy purpose.
Further, the synergist are as follows: the methacrylic acid-acrylic acid hydroxyl ethyl ester-methyl-prop for being 5 parts by mass fraction
Alkene acrylate copolymer, 4 parts of melamine, 3 parts of basic copper carbonate, 5 parts of polyamide, 4 parts of poly-vinegar acid cellulose are added
It being mixed in batch mixer, the substance obtained after mixing, the substance is exactly synergist, by the combination of various substances,
Promote its effect to be higher than single component effect, the shrinking percentage of concrete is promoted to reduce, improves impervious, the performances such as frost resistance.
Further, the sand-mix are as follows: will be medium coarse sand, middle sand, thin using the manual sandstone of primary standard class
The substance that sand, ultra fine sand are obtained after mixing according to the ratio that mass ratio is 10:6:4:1, passes through the sand of various sizes
Stone is combined, and effectively raises the contact area between aggregate, effectively increases the mechanical property of concrete.
Further, the cement are as follows: the cement of selection is the high-mark cement marked as 52.5.
Further, the adjuvant are as follows: by mass fraction be 30 parts of slag powders, 20 parts of flyash, 10 parts of iron
Mine ground slag, 5 parts of bauxite residue are added in batch mixer and are mixed, and the substance obtained after mixing, the substance is exactly auxiliary
Auxiliary agent, by the way that the substance is added, the further contact area improved between concrete effectively improves the mechanical property of concrete
Can, while reducing use cost.
Further, the reinforcing agent are as follows: by mass fraction be 30 parts of glass fibre, 10 parts of carbon fiber, 8 parts of stone
Cotton, 8 parts of silicon carbide are added in batch mixer and are mixed, and the substance obtained after mixing, the substance is exactly reinforcing agent, is passed through
The substance is added, it is made to form network-like structure in concrete, effectively enhances the tensile property of concrete.
Embodiment 4
A kind of preparation method of high intensity precast bridge plate concrete, the following steps are included:
A kind of preparation method of high intensity precast bridge plate concrete, which is characterized in that the prefabricated bridge of high intensity
The composition of beam slab concrete are as follows: mass fraction is 450 parts of cement, 1700 parts of sand-mix, 15 parts of water-reducing agent, 10
Reinforcing agent, 8 parts of the curing agent, 6 parts of synergist, 20 parts of adjuvant of part；
A kind of described high-intensitive precast bridge plate concrete the preparation method comprises the following steps: the water for being 450 parts by mass fraction
Mud, 1700 parts of sand-mix, 15 parts of water-reducing agent, 10 parts of reinforcing agent, 8 parts of curing agent, 6 parts of synergist, 20 parts
Adjuvant be added in blender and mixed, be added suitable water after mixing, carry out secondary agitation, obtain mixture,
The mixture is exactly high-intensitive precast bridge plate concrete.
Further, the water-reducing agent are as follows: by mass fraction be 10 parts of polyester polyol, 6 parts of dodecyl sodium sulfonate
Potassium, 8 parts of poly- sodium carboxymethylcellulose pyce, 10 parts of malic acid, 3 parts of glycerol, 30 parts of water are added in reaction kettle, temperature of reaction kettle
Control is at 40-60 DEG C, and the substance obtained after carrying out hybrid reaction 20-30 minutes, which is exactly water-reducing agent, and the substance is by making
Being combined with many kinds of substance makes the effect between each substance reach trade-off effect, effectively improves the water-reducing effect of concrete.
Further, the curing agent are as follows: by mass fraction be 12 parts of sodium metasilicate, 6 parts of Potassium aluminum sulfate dodecahydrate, 4
The aluminium chloride of part, 10 parts of calcium phosphate are added in batch mixer and are mixed, and the substance obtained after mixing, the substance just conserves
Agent is combined by many kinds of substance, it is made to quickly form covering film, while the shape in permeable formation in concrete surface
At fine and close, hard surface layer, the evaporation of moisture in cement concrete is prevented, makes the abundant aquation of cement and reaches autotrophy purpose.
Further, the synergist are as follows: the methacrylic acid-acrylic acid hydroxyl ethyl ester-methyl for being 10 parts by mass fraction
Propylene acrylate copolymer, 5 parts of melamine, 6 parts of basic copper carbonate, 8 parts of polyamide, 8 parts of poly-vinegar acid cellulose add
Enter in batch mixer and mixed, the substance obtained after mixing, the substance is exactly synergist.
Further, the sand-mix are as follows: will be medium coarse sand, middle sand, thin using the manual sandstone of primary standard class
The substance that sand, ultra fine sand are obtained after mixing according to the ratio that mass ratio is 20:12:6:3, passes through the sand of various sizes
Stone is combined, and effectively raises the contact area between aggregate, effectively increases the mechanical property of concrete.
Further, the cement are as follows: the cement of selection is the high-mark cement marked as 42.5.
Further, the adjuvant are as follows: by mass fraction be 40 parts of slag powders, 25 parts of flyash, 15 parts of iron
Mine ground slag, 10 parts of bauxite residue are added in batch mixer and are mixed, and the substance obtained after mixing, the substance is exactly auxiliary
Auxiliary agent, by the way that the substance is added, the further contact area improved between concrete effectively improves the mechanical property of concrete
Can, while reducing use cost.
Further, the reinforcing agent are as follows: by mass fraction be 30 parts of glass fibre, 10 parts of carbon fiber, 8 parts of stone
Cotton, 8 parts of silicon carbide are added in batch mixer and are mixed, and the substance obtained after mixing, the substance is exactly reinforcing agent, is passed through
The substance is added, it is made to form network-like structure in concrete, effectively enhances the tensile property of concrete.
Experimental analysis:
1, concrete chloride ion content is tested
Concrete prepared by embodiment 1-4 carries out chloride ion content detection, and testing result is as shown in the table:
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Chloride ion content (%) | 0.14 | 0.14 | 0.13 | 0.13 |
As can be seen from the above table, it is lower to prepare resulting concrete its chloride ion content by embodiment 1-4, will not induce reinforcing bar
The possibility of corrosion.
2, concrete resistance is tested
Carry out concrete prepared by embodiment 1-4 carries out resistance test, and test result is as follows shown in table:
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Resistance (Ω cm) | 35721 | 35834 | 35742 | 35654 |
As can be seen from the above table, embodiment 1-4 prepare resulting concrete resistance it is very higher, conductive capability compared with
Low, the development of steel bar corrosion is slower, effectively improves the service life of precast bridge plate.
3, Mechanics Performance Testing
By the precast bridge plate progress that concrete prepared by embodiment 1-4 is used to be prepared into precast bridge plate and market is sold
Mechanics Performance Testing, test result is as follows shown in table:
As can be seen from the above table, the concrete for applying 1-4 preparation be used to be prepared into its intensity of precast bridge plate and hardness compared with
The precast bridge plate that market is sold is higher, therefore its gravity born in the same circumstances is bigger, and use scope is more extensive.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention rather than limits, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from defined by claims of the present invention.
Claims (8)
1. a kind of preparation method of high intensity precast bridge plate concrete, which is characterized in that the high-intensitive precast bridge
The composition of plate concrete are as follows: mass fraction is 400-500 parts of cement, 1600-1800 parts of sand-mix, 10-15 parts
Water-reducing agent, 5-10 parts of reinforcing agent, 6-8 parts of curing agent, 4-6 parts of synergist, 10-20 parts of adjuvant；
A kind of described high-intensitive precast bridge plate concrete the preparation method comprises the following steps: the water for being 400-500 parts by mass fraction
Mud, 1600-1800 parts of sand-mix, 10-15 parts of water-reducing agent, 5-10 parts of reinforcing agent, 6-8 parts of curing agent, 4-6 parts
Synergist, 10-20 parts of adjuvant be added in blender and mixed, be added suitable water after mixing, carry out secondary
Stirring, obtains mixture, which is exactly high-intensitive precast bridge plate concrete.
2. a kind of preparation method of high-intensitive precast bridge plate concrete according to claim 1, which is characterized in that institute
The water-reducing agent stated are as follows: by mass fraction be 5-10 parts of polyester polyol, 4-6 parts of potassium dodecanesulfonate, 5-8 parts of poly- first
Base sodium cellulosate, 5-10 parts of malic acid, 1-3 parts of glycerol, 20-30 parts of water are added in reaction kettle, temperature of reaction kettle control
At 40-60 DEG C, the substance obtained after carrying out hybrid reaction 20-30 minutes, which is exactly water-reducing agent.
3. a kind of preparation method of high-intensitive precast bridge plate concrete according to claim 1, which is characterized in that institute
The curing agent stated are as follows: by mass fraction be 6-12 parts of sodium metasilicate, 4-6 parts of Potassium aluminum sulfate dodecahydrate, 2-4 parts of aluminium chloride,
5-10 parts of calcium phosphate is added in batch mixer and is mixed, and the substance obtained after mixing, the substance is with regard to curing agent.
4. a kind of preparation method of high-intensitive precast bridge plate concrete according to claim 1, which is characterized in that institute
The synergist stated are as follows: by mass fraction be 5-10 parts methacrylic acid-acrylic acid hydroxyl ethyl ester-metering system acrylate copolymer,
Batch mixer is added in 4-5 parts of melamine, 3-6 parts of basic copper carbonate, 5-8 parts of polyamide, 4-8 parts of poly-vinegar acid cellulose
In mixed, the substance obtained after mixing, the substance is exactly synergist.
5. a kind of preparation method of high-intensitive precast bridge plate concrete according to claim 1, which is characterized in that institute
The sand-mix stated are as follows: by using the manual sandstone of primary standard class, medium coarse sand, middle sand, fine sand, ultra fine sand are according to quality
The substance obtained after mixing than the ratio for 10-20:6-12:4-6:1-3.
6. a kind of preparation method of high-intensitive precast bridge plate concrete according to claim 1, which is characterized in that institute
The cement stated are as follows: the cement of selection is the high-mark cement marked as 42.5 or 52.5.
7. a kind of preparation method of high-intensitive precast bridge plate concrete according to claim 1, which is characterized in that institute
The adjuvant stated are as follows: by mass fraction be 30-40 parts of slag powders, 20-25 parts of flyash, 10-15 parts of iron ore tailings powder,
5-10 parts of bauxite residue is added in batch mixer and is mixed, and the substance obtained after mixing, the substance is exactly adjuvant.
8. a kind of preparation method of high-intensitive precast bridge plate concrete according to claim 1, which is characterized in that institute
The reinforcing agent stated are as follows: by mass fraction be 20-30 parts of glass fibre, 5-10 parts of carbon fiber, 4-8 parts of asbestos, 5-8 parts
Silicon carbide is added in batch mixer and is mixed, and the substance obtained after mixing, the substance is exactly reinforcing agent.
Priority Applications (1)
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| CN111574153A (en) * | 2020-05-19 | 2020-08-25 | 江苏君道绿色建筑科技有限公司 | Concrete formula for improving strength of PC (polycarbonate) member and mixing proportion method thereof |
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