CN109020413A - A kind of high intensity frost-resistant concrete - Google Patents
A kind of high intensity frost-resistant concrete Download PDFInfo
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- CN109020413A CN109020413A CN201811194023.5A CN201811194023A CN109020413A CN 109020413 A CN109020413 A CN 109020413A CN 201811194023 A CN201811194023 A CN 201811194023A CN 109020413 A CN109020413 A CN 109020413A
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- resistant concrete
- air entraining
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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
- 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
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of high-intensitive frost-resistant concretes, and raw material includes: portland cement, coarse sand, fine sand, rubble, water, steel slag, zeolite powder, gypsum, post-consumer glass powder, silicon powder, glass bead, poly carboxylic acid series water reducer, borate, sodium nitrite, stannous chloride, montmorillonite powder, composite fibre, air entraining agent, urea, triethanolamine.A kind of high-intensitive frost-resistant concrete proposed by the present invention, intensity is high, and frost resistance is good, long service life.
Description
Technical field
The present invention relates to technical field of concrete more particularly to a kind of high-intensitive frost-resistant concretes.
Background technique
With the continuous propulsion of infrastructure construction in china, concrete becomes indispensable construction material.Due to China
Vast in territory, the weather of different geographical, environment difference are larger, and when normal concrete pours at low ambient temperatures is easy to be frozen
It splits, largely affects construction quality, while most of buildings have very high requirement to the intensity of the concrete used,
And high performance concrete also represents the developing direction of concrete technology.Therefore, a kind of coagulation high-intensitive, frost resistance is good is developed
Soil is current urgent problem.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of high-intensitive frost-resistant concretes, and intensity is high,
Frost resistance is good, long service life.
A kind of high-intensitive frost-resistant concrete proposed by the present invention, raw material includes: portland cement 310-375 by weight
Part, 400-490 parts of coarse sand, 185-285 parts of fine sand, 980-1150 parts of rubble, 125-175 parts of water, 30-40 parts of steel slag, zeolite powder
25-40 parts, 18-25 parts of gypsum, 12-20 parts of post-consumer glass powder, 25-50 parts of silicon powder, 30-50 parts of glass bead, polycarboxylic-acid subtract
1.1-1.75 parts of aqua, 0.85-1.2 parts of borate, 1.1-1.5 parts of sodium nitrite, 0.7-0.95 parts of stannous chloride, montmorillonite powder
15-30 parts, 1.82-2.35 parts of composite fibre, 0.02-0.05 parts of air entraining agent, 0.8-1.15 parts of urea, triethanolamine 0.7-1.2
Part.
Preferably, raw material includes: 345-360 parts of portland cement, 440-460 parts of coarse sand, fine sand 240- by weight
265 parts, it is 1040-1100 parts of rubble, 145-160 parts of water, 35-37 parts of steel slag, 34-37 parts of zeolite powder, 20-22 parts of gypsum, waste and old
15-16 parts of glass powder, 38-42 parts of silicon powder, 38-44 parts of glass bead, 1.3-1.55 parts of poly carboxylic acid series water reducer, borate 1-
1.1 parts, 1.3-1.4 parts of sodium nitrite, 0.8-0.9 parts of stannous chloride, 22-24 parts of montmorillonite powder, 2.1-2.2 parts of composite fibre,
0.03-0.04 parts of air entraining agent, 0.95-1.05 parts of urea, 0.9-1.1 parts of triethanolamine.
Preferably, raw material includes: 355 parts of portland cement, 450 parts of coarse sand, 255 parts of fine sand, rubble by weight
1065 parts, 155 parts of water, 36.5 parts of steel slag, 35.6 parts of zeolite powder, 21.2 parts of gypsum, 15.6 parts of post-consumer glass powder, silicon powder 40.2
Part, 40 parts of glass bead, 1.42 parts of poly carboxylic acid series water reducer, 1.05 parts of borate, 1.36 parts of sodium nitrite, stannous chloride 0.84
Part, 23.4 parts of montmorillonite powder, 2.15 parts of composite fibre, 0.03 part of air entraining agent, 0.99 part of urea, 0.98 part of triethanolamine.
Preferably, the content of silica is 94-96% in silicon powder.
Preferably, composite fibre is by weight by bamboo fibre, carbon fiber, steel fibre, polyester fiber, vinal
1.5-2:3-5:2-3.5:1-1.5:1-2 composition.
Preferably, air entraining agent is prepared by following technique:
S1, isomery hexadecanol is preheated, is passed through nitrogen, ethylene oxide then is added and catalyst is obtained through ring-opening polymerisation
Material A；
S2, material A is mixed with methyl-propane sulfonic acid sodium, rosin, stirs, stabilizer is then added, adds water dilution, obtains
To air entraining agent.
Preferably, in S1, the weight ratio between isomery hexadecanol and ethylene oxide is 20-30:1-2.5.
Preferably, in S2,20-30 parts of material As and 6-12 parts of methyl-propane sulfonic acid sodium, 2-3 parts of rosin are mixed by weight
It closes, regulation system pH value is then 4-5 is added stabilizer, adds water and be diluted to the dense of 20-25% in 80-90 DEG C of stirring 3-4h
Degree, obtains air entraining agent.
By rationally adding and controlling portland cement, coarse sand, fine sand, rubble, water, steel slag, zeolite powder, stone in the present invention
Cream, post-consumer glass powder, silicon powder, glass bead, poly carboxylic acid series water reducer, borate, sodium nitrite, stannous chloride, montmorillonite powder,
The content of composite fibre, air entraining agent, urea, triethanolamine, compatibility and good dispersion between each component, and each component phase interworking
It closes, keeps concrete workability of the present invention good, intensity is high, and frost resistance is good, long service life.Wherein, using coarse sand, fine sand, rubble,
Steel slag, zeolite powder, gypsum, post-consumer glass powder, silicon powder, glass bead, montmorillonite powder, intensity and partial size be not between composite fibre
Together, it realizes and is sufficient filling in concrete material, make concrete compaction, be effectively improved concrete institutional framework, and as mixed
Solidifying soil skeleton, effectively improves concrete strength of the present invention and impermeability, and zeolite powder, post-consumer glass powder, silicon powder, glass bead with
Montmorillonite powder, composite fibre cooperate, and are effectively improved the workability and temperature tolerance of concrete, reduce the slump, increase coagulation
The early strength of soil, and the durability of concrete can be improved；Borate, sodium nitrite, stannous chloride, triethanolamine and urea phase
Mutually cooperation, the erosion for effectively slowing down or preventing chemical substance to concrete further increase the durability of concrete；Air entraining agent
In, by the way that isomery hexadecanol and ethylene oxide is carried out ring-opening polymerisation, methyl-propane sulfonic acid sodium is then added and carries out sulfonation modifying,
Rosin is added and carries out esterification modification, obtained air entraining agent has both the respective excellent of rosin salt air entraining agent and Sulfonates air entraining agent
Point is added in the present invention, and dosage is few, and performance is stablized, and effect is obvious, good with other each component compatibilities, in fresh concrete
It is middle to generate a certain amount of fine round sealed bubble, the mobility, workability, pumpability of concrete can be improved, reduce mix
Isolation and bleeding, make in course of hardening capillary become it is tiny, tortuous, dispersion, reduce infiltration lane, effectively mention
Uniformity, density, frost resistance and the impermeability of high concrete, while the persistence of concrete high-strength degree can also be effectively improved.
High-intensitive frost-resistant concrete proposed by the present invention is tested for the property, test discovery: agent on crack resistance of concrete freeze thawing 300 times
When, dynamic modulus of elasticity 96.5-97.8% shows excellent frost-proof test；The compression strength of concrete after 28d
Excellent strength character is shown for 51.5-54.8MPa, flexural strength 14.5-18MPa.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of high-intensitive frost-resistant concrete proposed by the present invention, raw material include: by weight 310 parts of portland cement,
400 parts of coarse sand, 185 parts of fine sand, 980 parts of rubble, 125 parts of water, 30 parts of steel slag, 40 parts of zeolite powder, 18 parts of gypsum, post-consumer glass powder
12 parts, 50 parts of silicon powder, 30 parts of glass bead, 1.1 parts of poly carboxylic acid series water reducer, 1.2 parts of borate, 1.1 parts of sodium nitrite, chlorination
0.7 part of stannous, 15 parts of montmorillonite powder, 1.82 parts of composite fibre, 0.02 part of air entraining agent, 0.8 part of urea, 1.2 parts of triethanolamine.
Embodiment 2
A kind of high-intensitive frost-resistant concrete proposed by the present invention, raw material include: by weight 375 parts of portland cement,
490 parts of coarse sand, 285 parts of fine sand, 1150 parts of rubble, 175 parts of water, 40 parts of steel slag, 25 parts of zeolite powder, 25 parts of gypsum, post-consumer glass
20 parts of powder, 25 parts of silicon powder, 50 parts of glass bead, 1.75 parts of poly carboxylic acid series water reducer, 0.85 part of borate, 1.5 parts of sodium nitrite,
0.95 part of stannous chloride, 30 parts of montmorillonite powder, 2.35 parts of composite fibre, 0.05 part of air entraining agent, 1.15 parts of urea, triethanolamine
0.7 part.
Wherein, the content of silica is 95wt% in silicon powder；
Composite fibre is 1.5:3 by bamboo fibre, carbon fiber, steel fibre, polyester fiber, vinal by weight:
3.5:1:1 composition；
Air entraining agent is prepared by following technique:
S1, isomery hexadecanol is preheated, is passed through nitrogen, ethylene oxide then is added and catalyst is obtained through ring-opening polymerisation
Material A；
S2, material A is mixed with methyl-propane sulfonic acid sodium, rosin, stirs, stabilizer is then added, adds water dilution, obtains
To air entraining agent.
Embodiment 3
A kind of high-intensitive frost-resistant concrete proposed by the present invention, raw material include: by weight 355 parts of portland cement,
450 parts of coarse sand, 225 parts of fine sand, 1050 parts of rubble, 155 parts of water, 35 parts of steel slag, 32 parts of zeolite powder, 22 parts of gypsum, post-consumer glass
16 parts of powder, 35 parts of silicon powder, 40 parts of glass bead, 1.5 parts of poly carboxylic acid series water reducer, 0.98 part of borate, 1.2 parts of sodium nitrite,
0.85 part of stannous chloride, 18 parts of montmorillonite powder, 2.1 parts of composite fibre, 0.04 part of air entraining agent, 1 part of urea, 0.9 part of triethanolamine.
Wherein, the content of silica is 96wt% in silicon powder；
Composite fibre is 1.8:4 by bamboo fibre, carbon fiber, steel fibre, polyester fiber, vinal by weight:
2.5:1.2:1.5 composition；
Air entraining agent is prepared by following technique:
S1, isomery hexadecanol is preheated, is passed through nitrogen, ethylene oxide then is added and catalyst is obtained through ring-opening polymerisation
Material A；Wherein, the weight ratio between isomery hexadecanol and ethylene oxide is 20:1；
S2,20 parts of material As are mixed with 6 parts of methyl-propane sulfonic acid sodium, 2 parts of rosin by weight, regulation system pH value is
4, in 80 DEG C of stirring 4h, stabilizer is then added, add water be diluted to 25% concentration, obtain air entraining agent.
Embodiment 4
A kind of high-intensitive frost-resistant concrete proposed by the present invention, raw material include: by weight 325 parts of portland cement,
410 parts of coarse sand, 200 parts of fine sand, 1000 parts of rubble, 135 parts of water, 32 parts of steel slag, 28 parts of zeolite powder, 20 parts of gypsum, post-consumer glass
14 parts of powder, 32 parts of silicon powder, 35 parts of glass bead, 1.2 parts of poly carboxylic acid series water reducer, 0.95 part of borate, 1.2 parts of sodium nitrite,
0.8 part of stannous chloride, 18 parts of montmorillonite powder, 2 parts of composite fibre, 0.03 part of air entraining agent, 0.9 part of urea, 1.1 parts of triethanolamine.
Wherein, the content of silica is 97wt% in silicon powder；
Composite fibre is 2:5:2 by bamboo fibre, carbon fiber, steel fibre, polyester fiber, vinal by weight:
1.5:2 composition；
Air entraining agent is prepared by following technique:
S1, isomery hexadecanol is preheated, is passed through nitrogen, ethylene oxide then is added and catalyst is obtained through ring-opening polymerisation
Material A；Wherein, the weight ratio between isomery hexadecanol and ethylene oxide is 25:2；
S2,25 parts of material As are mixed with 10 parts of methyl-propane sulfonic acid sodium, 2.5 parts of rosin by weight, regulation system pH value
Be 4.5, in 85 DEG C of stirring 3.4h, stabilizer be then added, add water be diluted to 22% concentration, obtain air entraining agent.
Embodiment 5
A kind of high-intensitive frost-resistant concrete proposed by the present invention, raw material include: by weight 355 parts of portland cement,
450 parts of coarse sand, 1065 parts of rubble, 155 parts of water, 36.5 parts of steel slag, 35.6 parts of zeolite powder, 21.2 parts of gypsum, gives up at 255 parts of fine sand
15.6 parts of old glass powder, 40.2 parts of silicon powder, 40 parts of glass bead, 1.42 parts of poly carboxylic acid series water reducer, 1.05 parts of borate, nitrous
1.36 parts of sour sodium, 0.84 part of stannous chloride, 23.4 parts of montmorillonite powder, 2.15 parts of composite fibre, 0.03 part of air entraining agent, urea 0.99
Part, 0.98 part of triethanolamine.
Wherein, the content of silica is 95.5wt% in silicon powder；
Composite fibre is 1.6 by bamboo fibre, carbon fiber, steel fibre, polyester fiber, vinal by weight:
3.5:3:1.2:1.2 composition；
Air entraining agent is prepared by following technique:
S1, isomery hexadecanol is preheated, is passed through nitrogen, ethylene oxide then is added and catalyst is obtained through ring-opening polymerisation
Material A；Wherein, the weight ratio between isomery hexadecanol and ethylene oxide is 30:2.5；
S2,30 parts of material As are mixed with 12 parts of methyl-propane sulfonic acid sodium, 3 parts of rosin by weight, regulation system pH value is
5, in 90 DEG C of stirring 3h, stabilizer is then added, add water be diluted to 20% concentration, obtain air entraining agent.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. it is a kind of high intensity frost-resistant concrete, which is characterized in that its raw material include: by weight 310-375 parts of portland cement,
400-490 parts of coarse sand, 185-285 parts of fine sand, 980-1150 parts of rubble, 125-175 parts of water, 30-40 parts of steel slag, zeolite powder 25-
40 parts, 18-25 parts of gypsum, 12-20 parts of post-consumer glass powder, 25-50 parts of silicon powder, 30-50 parts of glass bead, poly carboxylic acid series water reducer
1.1-1.75 parts, 0.85-1.2 parts of borate, 1.1-1.5 parts of sodium nitrite, 0.7-0.95 parts of stannous chloride, montmorillonite powder 15-
30 parts, 1.82-2.35 parts of composite fibre, 0.02-0.05 parts of air entraining agent, 0.8-1.15 parts of urea, 0.7-1.2 parts of triethanolamine.
2. high-intensitive frost-resistant concrete according to claim 1, which is characterized in that its raw material includes: silicate by weight
345-360 parts of cement, 440-460 parts of coarse sand, 240-265 parts of fine sand, 1040-1100 parts of rubble, 145-160 parts of water, steel slag 35-
37 parts, 34-37 parts of zeolite powder, 20-22 parts of gypsum, 15-16 parts of post-consumer glass powder, 38-42 parts of silicon powder, 38-44 parts of glass bead,
1.3-1.55 parts of poly carboxylic acid series water reducer, 1.3-1.4 parts of sodium nitrite, 0.8-0.9 parts of stannous chloride, covers 1-1.1 parts of borate
Take off mountain flour 22-24 parts, 2.1-2.2 parts of composite fibre, 0.03-0.04 parts of air entraining agent, 0.95-1.05 parts of urea, triethanolamine
0.9-1.1 parts.
3. high-intensitive frost-resistant concrete according to claim 2, which is characterized in that its raw material includes: silicate by weight
355 parts of cement, 450 parts of coarse sand, 255 parts of fine sand, 1065 parts of rubble, 155 parts of water, 36.5 parts of steel slag, 35.6 parts of zeolite powder, gypsum
21.2 parts, 15.6 parts of post-consumer glass powder, 40.2 parts of silicon powder, 40 parts of glass bead, 1.42 parts of poly carboxylic acid series water reducer, borate
1.05 parts, 1.36 parts of sodium nitrite, 0.84 part of stannous chloride, 23.4 parts of montmorillonite powder, 2.15 parts of composite fibre, air entraining agent 0.03
Part, 0.99 part of urea, 0.98 part of triethanolamine.
4. high intensity frost-resistant concrete described in any one of -3 according to claim 1, which is characterized in that silica in silicon powder
Content is 95-97wt%.
5. high intensity frost-resistant concrete described in any one of -4 according to claim 1, which is characterized in that composite fibre is by bamboo fibre
Dimension, carbon fiber, steel fibre, polyester fiber, vinal are 1.5-2:3-5:2-3.5:1-1.5:1-2 group by weight
At.
6. high intensity frost-resistant concrete described in any one of -5 according to claim 1, which is characterized in that air entraining agent presses following technique
It is prepared:
S1, isomery hexadecanol is preheated, is passed through nitrogen, ethylene oxide and catalyst is then added through ring-opening polymerisation and obtains material
A；
S2, material A is mixed with methyl-propane sulfonic acid sodium, rosin, stirs, stabilizer is then added, adds water dilution, is drawn
Gas agent.
7. high intensity frost-resistant concrete described in any one of -6 according to claim 1, which is characterized in that in S1, isomery hexadecanol
Weight ratio between ethylene oxide is 20-30:1-2.5.
8. high intensity frost-resistant concrete described in any one of -7 according to claim 1, which is characterized in that in S2, by weight will
20-30 parts of material As are mixed with 6-12 parts of methyl-propane sulfonic acid sodium, 2-3 parts of rosin, and regulation system pH value is 4-5, at 80-90 DEG C
3-4h is stirred, stabilizer is then added, adds water the concentration for being diluted to 20-25%, obtains air entraining agent.
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| CN201811194023.5A CN109020413A (en) | 2018-10-12 | 2018-10-12 | A kind of high intensity frost-resistant concrete |
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| CN201811194023.5A CN109020413A (en) | 2018-10-12 | 2018-10-12 | A kind of high intensity frost-resistant concrete |
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| CN201811194023.5A Pending CN109020413A (en) | 2018-10-12 | 2018-10-12 | A kind of high intensity frost-resistant concrete |
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| CN112982807A (en) * | 2021-03-09 | 2021-06-18 | 中交二公局第三工程有限公司 | Light-weight bubble concrete structure with built-in reinforcing ribs and preparation method thereof |
| CN115974461A (en) * | 2021-10-14 | 2023-04-18 | 南通市建设混凝土有限公司 | High-strength anti-freezing anti-cracking concrete and preparation process thereof |
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| CN115974461A (en) * | 2021-10-14 | 2023-04-18 | 南通市建设混凝土有限公司 | High-strength anti-freezing anti-cracking concrete and preparation process thereof |
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