CN108996969A - A kind of white self-compaction clear water C40 pump concrete - Google Patents
A kind of white self-compaction clear water C40 pump concrete Download PDFInfo
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- CN108996969A CN108996969A CN201811044245.9A CN201811044245A CN108996969A CN 108996969 A CN108996969 A CN 108996969A CN 201811044245 A CN201811044245 A CN 201811044245A CN 108996969 A CN108996969 A CN 108996969A
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- 239000004567 concrete Substances 0.000 title claims abstract description 87
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000005056 compaction Methods 0.000 title claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000004568 cement Substances 0.000 claims abstract description 25
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 235000010215 titanium dioxide Nutrition 0.000 claims abstract description 13
- 239000006004 Quartz sand Substances 0.000 claims abstract description 11
- 239000000654 additive Substances 0.000 claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 11
- 239000000049 pigment Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000013329 compounding Methods 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- HOOWDPSAHIOHCC-UHFFFAOYSA-N dialuminum tricalcium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[Al+3].[Al+3].[Ca++].[Ca++].[Ca++] HOOWDPSAHIOHCC-UHFFFAOYSA-N 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 235000019580 granularity Nutrition 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 229920005646 polycarboxylate Polymers 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000000839 emulsion Substances 0.000 claims 1
- 239000011376 self-consolidating concrete Substances 0.000 abstract description 10
- 238000005034 decoration Methods 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 231100000603 Marsh test Toxicity 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- -1 fine grain sand compound Chemical class 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
-
- 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
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
-
- 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
Landscapes
- 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 white self-compaction clear water C40 pump concretes, the concrete includes following components, cement 350 ~ 430, slag micropowder 50 ~ 80, quartz sand 790 ~ 830, additive 5 ~ 6, mixing water 155~165, titanium white powder pigment 5 ~ 8, andesite rubble 900 ~ 940, the unit of each component are kg/m3.White self-compaction clear-water concrete prepared by the present invention has high flowing and the self-compacting ability of conventional self-compacting concrete.It is simultaneously pure white appearance, and does not change over time.The surface property of clear-water concrete is had both simultaneously.Bubble is few, and color is uniform.In architectural concrete field application value with higher.The concrete can be used as structure concrete substrate.It is integrally formed.Eliminate the decoration of concrete casing.Saving color reduces cost of labor.Meet the theory of China's green building.
Description
Technical field
The invention belongs to the field of building materials, the clear water for being related to a kind of white, high-strength, self-compaction large-scale production is mixed
Solidifying soil, specially a kind of white self-compaction clear water C40 pump concrete.
Background technique
With economic continuous development, the environmental protection of building, the requirement of vision are increasingly improved, this trend, clear water are complied with
Concrete technology develops rapidly, safe and clean with its, beautiful, be readily cleaned, durable advantage, becomes large-scale and public builds
The first choice built.But the color of traditional clear water concrete is more single, mainly based on concrete primary colors.Many architectural designs start
The decorative cover of External Wall proposes more require.Although traditional exposed wall decorative hangig panel moulding is relatively abundanter, can not take out of
The true qualities simpleness sense of concrete, and it is higher with maintenance cost to construct, and service life is shorter.
The moulding of modern public heavy construction also gradually tends to be complicated simultaneously, and more abnormity components start in engineering project
Upper appearance.Concrete reinforcement gap therein is smaller, and conventional concrete application property is unable to satisfy casting sometimes and requires, and part is narrow
Space can not carry out concrete construction and vibrate.
Summary of the invention
It is an object of the invention to solve disadvantage present in above-mentioned traditional clear water concrete technology, the present invention provides one kind
White self-compaction clear water C40 pump concrete, the concrete are collection decoration, and high-strength, clear water, application property are mixed in the high-performance of one
Solidifying soil.It can be used for concrete structure construction, there is preferable mechanical property and workability.
In order to achieve the above object of the invention, technical solution provided by the invention is as follows:
A kind of white self-compaction clear water C40 pump concrete, which includes following components, cement 350 ~ 430, slag micropowder
50 ~ 80, quartz sand 790 ~ 830, additive 5 ~ 6, mixing water 155~165, titanium white powder pigment 5 ~ 8, andesite rubble 900 ~ 940,
The unit of each component is kg/m3。
The concrete includes following components, cement 350 ~ 400, slag micropowder 50 ~ 60, quartz sand 790 ~ 800, additive
5 ~ 6, mixing water 155~160, titanium white powder pigment 5 ~ 7, andesite rubble 900 ~ 920.
The concrete includes following components, cement 420, slag micropowder 60, quartz sand 820, additive 5.3, mixing water
165, titanium white powder pigment 6, andesite rubble 930.
The cement is white P.W.42.5, and jelling time is less than 600min, institute not less than 45min, final setting time
The whiteness value for stating cement is greater than 48MPa, consumptive use of water normal consistence≤27% of cement, water not less than 87,28d glue sand compression strength
Tricalcium aluminate mineral constituent content≤7.0% in mud, specific surface area≤380m of cement2/kg。
The additive is polycarboxylate high performance water-reducing agent, and water-reducing rate is greater than 25%, collapse the time to the guarantor of concrete >=
2 hours, and there is certain viscosity reduction, thickening effect (is pressed JGJT 283-2012 " the concrete admixture homogeneity method of inspection "
The Marsh tests in 220 ± 20mm of flowing degree of net paste of cement mixing are less than 10s)；Bleeding rate is not more than 5% within 3 hours, and needs to control
Overall number of bubbles and bubble shape in concrete processed, need to control concrete totality air content less than or equal to 3%, bubble shape is uniform
Intensively.Largest air bubbles partial size should be controlled in 2mm or less.
The quartz sand is compounded by three kinds of granularities, coarse grain diameter sand: 1.25mm~0.63mm；Middle partial size sand: 0.63mm
~0.315 mm；Fine grain sand: 0.315~0.16mm, tri- particle size fractions, the coarse grain diameter sand, middle partial size sand, in fine grain sand
Super particles content no more than 5%, the coarse grain diameter sand, middle partial size sand, fine grain sand compound to fineness modulus be 2.3~
2.5, the sand after compounding should make sand voidage no more than 43%.
The main component of the titanium white powder pigment is titanium dioxide, and effective content of titanium dioxide should be greater than 90%.Its whiteness
Value is not less than 98.
The andesite rubble is not less than for the andesite shaping rubble of partial size 5-20mm continuous grading, its apparent density
2650kg/m3, its porosity be not more than 42%, wherein elongated particles are less than 5%.
The concrete 28d standard curing compression strength is greater than 48MPa, and air content is not more than 3%, concrete overall whiteness
Not less than 90.
The concrete divergence is 650 ± 50mm, when T500(measures Control Measures for Concrete Slump divergence with slump cone, from
Slump cone lifts beginning timing, until mixture slump expanding surface diameter reaches the time of 500mm) time within 5s, extension
Degree and J ring divergence (in the test of J ring divergence, after mixture stops flowing, the maximum gauge of expanding surface and with maximum gauge are in
The average value of the diameter of vertical direction.) difference be 25mm within, the V-groove time (use V-arrangement funnel, examine self-compacting concrete
A kind of test method of education resistance energy.Concrete mix is filled into V-arrangement funnel, the timing since opening discharge port bottom cover,
Record mixture and all flow out the discharge port time experienced) it is 10-20s, U-type groove difference in height (uses defined U-shaped case, inspection
Autodensing concrete almixture is surveyed by reinforcing bar gap, and is voluntarily filled to a kind of test method of position each in case ability.)
Within 20mm, L-type case (tests, the ratio of front end and least significant end concrete height) both ends H using L-type case2/H1Height ratio
0.8-1.0.With preferable Self-leveling and closely knit performance.
Compared with prior art, the invention has the benefit that
1. white clear water self-compacting concrete of the invention has whiteness not available for traditional clear water concrete, it can be used for large size
Decoration element and facing.Enrich the decorative effect of traditional clear water concrete.With beauty, generous feature.Its is unique white
Color finishing effect.Have both that conventional concrete facing is steady, simple effect.With more unique glamour.
2. white clear water self-compacting concrete mechanical strength with higher of the invention, 28d compression strength is in C40 coagulation
It is more than soil.The structure that can be directly used for building pours.Interior of building wall stud etc. can be directly used for decorating, and cast out painting
The chemical products such as material, facing；Be good for the environment: clear-water concrete structure one-pass molding does not pick chisel repairing, does not plaster, reduces
A large amount of building wastes are conducive to protect environment, have saved resource.
3. white clear water self-compacting concrete of the invention has preferable construction pump-conveying property, concrete plastic viscosity can
Control is below 40mPa s.It can face various abnormal complex structures.Smaller for arrangement of reinforcement gap, vibrating can not region in place
It can accomplish self-compaction, Self-leveling.Without increasing other labor cost.Its self-compacting ability is excellent, and concrete divergence is
650 ± 50mm, the T500 time, divergence and J ring divergence difference were within 25mm, and the V-groove time is 10-20s within 5s,
U-type groove difference in height is L-type case both ends H within 20mm2/H1Height compares 0.8-1.0.
4. self-compaction clear-water concrete can the very good solution problem.The workability of its without vibration and Self-leveling can be significantly
Reduce labor cost.Compared with traditional clear water concrete, its surface quality will also have biggish promotion.Traditional clear water concrete due to
It needs to vibrate, there may be increased number of stomata on surface not in place of vibrating in construction, and bubble diameter is larger, and conventional concrete is mixed
It is more to close material, is locally likely to occur color difference etc..Preferable solution can be obtained by the clear water self-compacting concrete.
5. white clear water self-compacting concrete of the present invention combines white, clear water, self-compacting ability in one.It has both
Self-compacting concrete excellent workability has white finishing effect.And concrete honesty is embodied to a certain extent
Simple and unadorned, naturally sedate appearance charm.Series concrete concrete strength label with higher, 28d intensity are higher than simultaneously
48MPa.It can be used for whole disposably the pouring of structure to smash.Substantially increase the stability of building structure.It can drop to a certain extent
Low project construction cost.Greatly improve the utilization efficiency of resource.
Specific embodiment
We in conjunction with specific embodiments do further C40 white clear water self-compacting concrete of the invention below
It elaborates, more in depth to understand technology of the invention, but is not intended to limit the protection scope of the present invention.
The present embodiment white self-compaction clear water C40 pump concrete, the concrete include following components, cement 350 ~ 430,
Slag micropowder 50 ~ 80, quartz sand 790 ~ 830, additive 5 ~ 6, mixing water 155~165, titanium white powder pigment 5 ~ 8, andesite rubble
900 ~ 940, the unit of each component is kg/m3。
Preferably, the present embodiment cement is white P.W.42.5, jelling time is not less than 45min, final setting time
Less than 600min, the whiteness value of the cement is greater than 48MPa, cement normal consistency water not less than 87,28d glue sand compression strength
Measure (cement normal consistency water consumption, which refers to, reaches the ratio between normal consistency cement paste hourly water consumption and cement quality)≤27%, water
Tricalcium aluminate mineral constituent content≤7.0% in mud, specific surface area≤380m of cement2/kg。
As further preferred, the present embodiment additive is polycarboxylate high performance water-reducing agent, and water-reducing rate is greater than 25%,
It collapses the time >=2 hours to the guarantor of concrete, bleeding rate is not more than 5% within 3 hours.
As further preferred, the present embodiment quartz sand is compounded by three kinds of granularities, coarse grain diameter sand: 1.25mm~
0.63mm；Middle partial size sand: the mm of 0.63mm~0.315；Fine grain sand: 0.315~0.16mm, tri- particle size fractions, the coarse grain diameter
Sand, middle partial size sand, super particles content is no more than 5% in fine grain sand, the coarse grain diameter sand, middle partial size sand, fine grain sand
Compounding to fineness modulus is 2.3~2.5, and the sand after compounding should make sand voidage no more than 43%.
As further preferred, the whiteness of the present embodiment titanium white powder pigment is greater than 90% not less than 98, its purity.
As further preferred, the present embodiment andesite rubble is that the andesite shaping of partial size 5-20mm continuous grading is broken
Stone, its apparent density are not less than 2650kg/m3, its porosity be not more than 42%, wherein elongated particles are less than 5%.
As further preferred, the present embodiment concrete 28d standard curing compression strength is greater than 48MPa, and air content is little
In 3%, concrete overall whiteness is not less than 90.
The present embodiment concrete divergence is 650 ± 50mm, and T500(measures Control Measures for Concrete Slump divergence with slump cone
When.Timing lifting since slump cone, until mixture slump expanding surface diameter reaches the time of 500mm) time within 5s,
Divergence and J ring divergence (in the test of J ring divergence, after mixture stops flowing, the maximum gauge of expanding surface and straight with maximum
The average value of the diameter of diameter in vertical direction.) difference is within 25mm, the V-groove time (uses V-arrangement funnel, examines self-compaction mixed
A kind of test method of solidifying soil education resistance energy.Concrete mix is filled into V-arrangement funnel, is counted since opening discharge port bottom cover
When, record mixture all outflow the discharge port time experienced) be 10-20s, U-type groove difference in height (use defined U-shaped case,
Autodensing concrete almixture is detected by reinforcing bar gap, and is voluntarily filled to a kind of test side of position each in case ability
Method.) it is within 20mm, L-type case (tests, the ratio of front end and least significant end concrete height) both ends H using L-type case2/H1It is high
Degree compares 0.8-1.0.
Table 1 is specific three embodiments, wherein showing a kind of concrete composition of C40 white clear water self-compacting concrete
And application.The ratio of mud has carried out up and down 0.02 floating simultaneously, corresponding to produce three groups of test match ratios, concrete composition and answers
With as follows.Folk prescription consumption proportion (the kg/m of each constituent in the present embodiment3) it is as follows:
The white self-compaction clear water C40 pump concrete of table 1
Note: data unit is kg/m in table 13。
Sample concrete corresponding data in three embodiments after concrete mix trial is as shown in table 2:
2 trial result of table
In the case where above-mentioned 3 groups of proportions, optimum ratio 1 is produced in enormous quantities and has poured a concrete wall surface, formal
The testing performance index of the concrete required in production process,
Embodiment 1 is most preferred scheme, and comprehensive performance effect is best, and the concrete surface after hardening is without the bubble for being greater than 2mm.
Without obvious crack and dusting trace.With preferable finishing effect.
Experiments have shown that, the present invention is reasonably combined by each raw material, and having made has higher force by a large amount of
Intensity, the white clear-water concrete of preferable self-compaction workability and certain novel finishing effect.It is mixed to increase traditional clear water
Coagulate the application range of soil.Enrich the facing form of expression of clear-water concrete.And resource is saved from certain angle.So that
Facing decorative layer durability with higher.Extend its service life.Reduce project overall cost.Social money is saved
Source has society and economic benefits well.Certain Technical Reference is provided for universal use of clear-water concrete from now on.
Although above-described embodiment makes specific descriptions to the present invention, come for those of ordinary skill in the art
It says, it is understood that can be modified within spirit and scope of the invention based on present disclosure not departing from
Or improve, these modification and improvement are all within spirit and scope of the invention.
Claims (10)
1. a kind of white self-compaction clear water C40 pump concrete, which is characterized in that the concrete includes following components, cement 350
~ 430, slag micropowder 50 ~ 80, quartz sand 790 ~ 830, additive 5 ~ 6, mixing water 155~165, titanium white powder pigment 5 ~ 8, An Shan
Rock rubble 900 ~ 940, the unit of each component are kg/m3。
2. white self-compaction clear water C40 pump concrete according to claim 1, which is characterized in that the concrete packet
Include following components, cement 350 ~ 400, slag micropowder 50 ~ 60, quartz sand 790 ~ 800, additive 5 ~ 6, mixing water 155~160,
Titanium white powder pigment 5 ~ 7, andesite rubble 900 ~ 920.
3. white self-compaction clear water C40 pump concrete according to claim 1, which is characterized in that the concrete packet
Include following components, cement 420, slag micropowder 60, quartz sand 820, additive 5.3, mixing water 165, titanium white powder pigment 6, An Shan
Rock rubble 930.
4. white self-compaction clear water C40 pump concrete according to claim 1, which is characterized in that the cement is white
Color P.W.42.5, jelling time are less than 600min not less than 45min, final setting time, and the whiteness value of the cement is not less than
87,28d glue sand compression strength are greater than 48MPa, consumptive use of water normal consistence≤27% of cement, tricalcium aluminate mineral constituent in cement
Content≤7.0%, specific surface area≤380m of cement2/kg。
5. white self-compaction clear water C40 pump concrete according to claim 1, which is characterized in that the additive is
Polycarboxylate high performance water-reducing agent, water-reducing rate are greater than 25%, collapse the time >=2 hours to the guarantor of concrete, 3 hours bleeding rates are not
Greater than 5%.
6. white self-compaction clear water C40 pump concrete according to claim 1, which is characterized in that the quartz sand by
Three kinds of granularities compound, coarse grain diameter sand: 1.25mm~0.63mm；Middle partial size sand: the mm of 0.63mm~0.315；Fine grain sand:
0.315~0.16mm, tri- particle size fractions, the coarse grain diameter sand, middle partial size sand, super particles content is little in fine grain sand
In 5%, it is 2.3~2.5 that the coarse grain diameter sand, middle partial size sand, fine grain sand, which are compounded to fineness modulus, and the sand after compounding should make sand
Sub- voidage is not more than 43%.
7. white self-compaction clear water C40 pump concrete according to claim 1, which is characterized in that the titanium dioxide face
The whiteness of material is greater than 90% not less than 98, its purity.
8. white self-compaction clear water C40 pump concrete according to claim 1, which is characterized in that the andesite is broken
Stone is the andesite shaping rubble of partial size 5-20mm continuous grading, its apparent density not less than 2650kg/m3, its porosity it is little
In 42%, wherein elongated particles are less than 5%.
9. white self-compaction clear water C40 pump concrete according to claim 1, which is characterized in that the concrete 28d
Standard curing compression strength is greater than 48MPa, and air content is not more than 3%, and concrete overall whiteness is not less than 90.
10. white self-compaction clear water C40 pump concrete according to claim 1, which is characterized in that the concrete expands
The latitude of emulsion is 650 ± 50mm, and the T500 time, divergence and J ring divergence difference be within 25mm within 5s, and the V-groove time is
10-20s, U-type groove difference in height are L-type case both ends H within 20mm2/H1Height compares 0.8-1.0.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981342A (en) * | 2019-12-17 | 2020-04-10 | 广西四维材料科技股份有限公司 | High-strength white concrete |
| CN111908871A (en) * | 2020-08-13 | 2020-11-10 | 合肥工业大学 | White fiber high-performance C50 pump concrete |
| CN113773022A (en) * | 2021-09-27 | 2021-12-10 | 明阳智慧能源集团股份公司 | White clear water finish concrete for prefabricated parts and preparation method thereof |
| CN113788654A (en) * | 2021-09-10 | 2021-12-14 | 同济大学 | Self-compacting fair-faced concrete based on volcanic limestone powder and preparation method thereof |
| CN113800827A (en) * | 2020-06-17 | 2021-12-17 | 海南兆诚混凝土有限公司 | Pigment C40 ordinary concrete and preparation method thereof |
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| JPH08295550A (en) * | 1995-04-25 | 1996-11-12 | Nippon Tetsudo Kensetsu Kodan | Sprayable concrete |
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| CN110981342A (en) * | 2019-12-17 | 2020-04-10 | 广西四维材料科技股份有限公司 | High-strength white concrete |
| CN110981342B (en) * | 2019-12-17 | 2022-03-08 | 广西四维材料科技股份有限公司 | High-strength white concrete |
| CN113800827A (en) * | 2020-06-17 | 2021-12-17 | 海南兆诚混凝土有限公司 | Pigment C40 ordinary concrete and preparation method thereof |
| CN111908871A (en) * | 2020-08-13 | 2020-11-10 | 合肥工业大学 | White fiber high-performance C50 pump concrete |
| CN113788654A (en) * | 2021-09-10 | 2021-12-14 | 同济大学 | Self-compacting fair-faced concrete based on volcanic limestone powder and preparation method thereof |
| CN113773022A (en) * | 2021-09-27 | 2021-12-10 | 明阳智慧能源集团股份公司 | White clear water finish concrete for prefabricated parts and preparation method thereof |
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