CN106007541A - Method for designing high-performance concrete based on various performance requirements - Google Patents
Method for designing high-performance concrete based on various performance requirements Download PDFInfo
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- CN106007541A CN106007541A CN201610374781.XA CN201610374781A CN106007541A CN 106007541 A CN106007541 A CN 106007541A CN 201610374781 A CN201610374781 A CN 201610374781A CN 106007541 A CN106007541 A CN 106007541A
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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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)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A method for designing high-performance concrete based on various performance requirements comprises the following steps: 1, determining the composition of aggregates according to the theory of the most compact; 2, determining the water-to-cementing material ratio according to the Bowromi formula and durability design requirements; 3, determining the total use amount of a cementing material and the use amount of water; 4, determining the kind and the content of additives through test; 5, testing the relevant performances of concrete formed by different cementing materials, and establishing a relation between the cementing material composition and the performances of the concrete; and 6, making the relational graph between the cementing material composition and every concrete performance, determining the safety area of the cementing material composition, and recording the overlapped area of different performance areas as the optimum composition of the cementing material. The optimum composition of the cementing material of the high-performance concrete with various performance requirements is selected through using the design method, and the method has the advantages of simple operation, time and labor saving, realization of visual and accurate predication of relevant performances of concrete in a non-test point, and provision of basis for the component design of the cementing material.
Description
Technical field
The present invention relates to a kind of high performance concrete method for designing based on multiple performance requirement, specifically, relate to
A kind of method for designing of the high performance concrete according to multiple performance requirement.
Background technology
When concrete batching, mix complementary Binder Materials part and replace cement, can be effectively improved concrete some
Performance.In concrete raw material forms, the sandstone playing skeleton function accounts for 70-80%, and the hardened cement playing cementation accounts for
20-30%.In condensing hardening process, sandstone physical and chemical performance is the most stable, and the physical and chemical performance of Binder Materials is often
There is larger difference so that Binder Materials composition has significant impact to concrete performance.Existing concrete design specification
Merely specify the minimum and maximum consumption of complementary Binder Materials, in regulating scope, how to determine cement and complementary glue
The concrete ratio i.e. Binder Materials composition design of gel material is a difficult problem.Traditional Binder Materials composition design is many with warp
It is main for testing, and design Binder Materials composition generally requires and meets the concrete of performance requirement, no through repeatedly attempting just preparing
Only waste time and energy, and the concrete correlated performance of unpredictable non-test point.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the deficiency that existing concrete designs, it is provided that a kind of based on diversity
The high performance concrete method for designing that can require, the most simple to operate, time saving and energy saving, and can predict non-test the most accurately
The correlated performance of the lower concrete of point, designs offer foundation for cement components.
The present invention solves its technical problem and the technical scheme is that
Apply single-barycenter design Binder Materials composition, test the concrete correlated performance under different Binder Materials composition, based on
Multiple performance requirement, determines the safety zone that Binder Materials forms, and the overlay region of variable performance zones is Binder Materials
Good composition.
The high performance concrete method for designing based on multiple performance requirement of the present invention, comprises the following steps:
(1) according to maximal unit weight method, by test sandstone maximum unit weight method determine slightly, the composition of fine aggregate；
(2) the maximum water-cement ratio of high performance concrete is calculated according to Bolomey's formula, in conjunction with " durability design is advised
Model " (GB/T 50476-2008), from both, choose the smaller value of water-cement ratio；For ensureing concrete strength, smaller value subtracts 0.01
~ 0.03 water-cement ratio being design.
(3) by test sandstone apparent density and the bulk density of sandstone compound, aggregate voidage is calculated, and according to richness
Remaining slurry is theoretical, in conjunction with " durability design specification " (GB/T 50476-2008), determines the total consumption of Binder Materials
And water consumption；
(4) apply single-centroid method design Binder Materials composition, and carry out concrete test, base according to the proportioning of above-mentioned calculating
In concrete flowability requirement, determine additive kind and volume by test；
(5) the concrete correlated performance that test different Binder Materials composition is lower, set up Binder Materials composition and concrete performance it
Between relation；
(6) on figure, make the graph of a relation between Binder Materials composition and each concrete performance, property based on multiple concrete
Energy requirement, determines the safety zone that Binder Materials forms, and the overlay region of variable performance zones is the optimal composition of Binder Materials.
Further, in step (4), Binder Materials (x1,x2,……,xn) percentage ratio sum should meet x1+x2+……+
xn =100%。
Further, in step (4), arbitrary Binder Materials composition (xm) percentage composition should meet 0≤xm ≤100%。
Further, in step (4), additive kind and volume are determined by slumping.
Further, in step (5), the relation between Binder Materials composition and concrete performance is former by single-barycenter design
Reason determines.
The optimal of Binder Materials using the present invention to design the concrete with multiple performance requirement forms, and not only operates letter
Single, time saving and energy saving, and the correlated performance of concrete under non-test point can be predicted the most accurately, set for cement components
Meter provides foundation.
Accompanying drawing explanation
Fig. 1 is the ternary Binder Materials composition design drawing of concrete；
Fig. 2-a is the isogram of certain engineering A concrete crushing strength of embodiment 1；
Fig. 2-b is the isogram of certain engineering A agent on crack resistance of concrete cracking performance of embodiment 1；
Fig. 2-c is the isogram of certain engineering A concrete alkali-aggregate reaction performance of embodiment 1；
Fig. 2-d is the isogram of certain engineering A concrete chloride ion migration performance of embodiment 1；
Fig. 2-e is the isogram of certain engineering A concrete carbonization depth performance of embodiment 1；
Fig. 3 is the Binder Materials composition that certain engineering A concrete of embodiment 1 determines；
Fig. 4-a is the isogram of certain engineering B concrete crushing strength performance of embodiment 2；
Fig. 4-b is the isogram of certain engineering B agent on crack resistance of concrete cracking performance of embodiment 2；
Fig. 4-c is the isogram of certain engineering B concrete alkali-aggregate reaction performance of embodiment 2；
Fig. 4-d is the isogram of certain engineering B concrete chloride ion migration performance of embodiment 2；
Fig. 4-e is the isogram of certain engineering B concrete carbonization depth performance of embodiment 2；
Fig. 5 is the Binder Materials composition that certain engineering B concrete of embodiment 2 determines.
Detailed description of the invention
Below by specific embodiment, the present invention is further elaborated.Must not should be noted that following embodiment
It is construed to the restriction to present invention.
Embodiment 1
The C30 concrete material of certain engineering A must is fulfilled for intensity, splitting resistance, anti-alkali-aggregate reaction, resistance of chloride ion penetration
And carbonization resistance reaches the design requirement in 100 year service life；
(1) according to maximal unit weight method, by test sandstone maximum unit weight method, determine that optical sand percentage is 40 ± 2wt%；
(2) the maximum water-cement ratio according to Bolomey's formula calculating C30 concrete is 0.5, and " durability design is advised
Model " the maximum water-cement ratio of regulation C30 concrete is 0.55 in (GB/T 50476-2008), determines that water-cement ratio is 0.48；
(3) by test sandstone apparent density and the bulk density of sandstone compound, aggregate voidage is calculated, and according to slurry more than needed
Body is theoretical, and in " durability design specification " (GB/T 50476-2008), the Binder Materials of regulation C30 concrete is total
Consumption is not preferably less than 280kg/m3, determine the total consumption of Binder Materials and water consumption, respectively 320 kg/m3With 154 kg/m3；
(4) according to Fig. 1, applying single-barycenter design Binder Materials composition, wherein cement accounts for the ratio of Binder Materials composition is 50
~ 100%, it is 0 ~ 50% that flyash and breeze account for the ratio of Binder Materials composition.Proportioning according to above-mentioned calculating carries out concrete examination
Testing, based on concrete flowability requirement, determine that C30 concrete mixes the polycarboxylate water-reducer of 0.6%, the match ratio of concrete is shown in
Table 1；
(5) intensity of concrete under test different Binder Materials composition, splitting resistance, anti-alkali-aggregate reaction, resisting chloride ion penetration
Permeability, anti-stray current corrosivity and carbonization resistance, accompanying drawing is shown in by its isogram.Fig. 2-a is certain engineering A coagulation of embodiment 1
The isogram of soil comprcssive strength；Fig. 2-b is the isogram of certain engineering A agent on crack resistance of concrete cracking performance of embodiment 1；Fig. 2-c
It it is the isogram of certain engineering A concrete alkali-aggregate reaction performance of embodiment 1；Fig. 2-d is certain engineering A concrete of embodiment 1
The isogram of chloride ion transport performance；Fig. 2-e is the isogram of certain engineering A concrete carbonization depth performance of embodiment 1.
(6) the C30 concrete of certain engineering A need to meet comprcssive strength more than 38MPa, within 28 days, do not ftracture, alkali-aggregate reaction
Swell value less than 0.1%, chloride ion transport coefficient is less than 5.0 × 10-12m2/ s, carbonation depth are less than 6.5mm, according to these performances
Requiring to determine the safety zone under Binder Materials composition different performance, its overlay region A is the C30 concrete gelling of certain engineering A
The optimal composition of material, is shown in Fig. 3.Choosing match ratio A-8 at overlay region A to verify, match ratio A-8 prepares the resistance to compression of concrete
Intensity is 42MPa, within 28 days, do not ftracture, alkali-aggregate reaction swell value is 0.045%, chloride ion transport coefficient is 2.6 × 10-12m2/
S, carbonation depth are 5.7mm, meet the design requirement of the C30 concrete of certain engineering A.
Embodiment 2
The C55 concrete material of certain engineering B must is fulfilled for intensity, splitting resistance, anti-alkali-aggregate reaction, resistance of chloride ion penetration
And anti-carbonation properties reaches the design requirement in 100 year service life；
(1) according to maximal unit weight method, by test sandstone maximum unit weight method, determine that optical sand percentage is 39 ± 2%；
(2) the maximum water-cement ratio according to Bolomey's formula calculating C55 concrete is 0.3, and " durability design is advised
Model " the maximum water-cement ratio of regulation C55 concrete is 0.36 in (GB/T 50476-2008), determines that water-cement ratio is 0.29；
(3) by test sandstone apparent density and the bulk density of sandstone compound, aggregate voidage is calculated, and according to slurry more than needed
Body is theoretical, and in " durability design specification " (GB/T 50476-2008), the Binder Materials of regulation C55 concrete is total
Consumption is not preferably less than 380kg/m3, determine the total consumption of Binder Materials and water consumption, respectively 480 kg/m3With 139 kg/m3；
(4) according to Fig. 1, applying single-barycenter design Binder Materials composition, wherein cement accounts for the ratio of Binder Materials composition is 50
~ 100%, it is 0 ~ 50% that flyash and breeze account for the ratio of Binder Materials composition.Proportioning according to above-mentioned calculating carries out concrete examination
Testing, based on concrete flowability requirement, determine that C55 concrete mixes the polycarboxylate water-reducer of 1.3%, the match ratio of concrete is shown in
Table 2；
(5) intensity of concrete under test different Binder Materials composition, splitting resistance, anti-alkali-aggregate reaction, resisting chloride ion penetration
Permeability and anti-carbonation properties, accompanying drawing is shown in by its isogram.Fig. 4-a is certain engineering B concrete crushing strength performance of embodiment 2
Isogram；Fig. 4-b is the isogram of certain engineering B agent on crack resistance of concrete cracking performance of embodiment 2；Fig. 4-c be embodiment 2 certain
The isogram of engineering B concrete alkali-aggregate reaction performance；Fig. 4-d is certain engineering B concrete chloride ion animal migration of embodiment 2
The isogram of energy；Fig. 4-e is the isogram of certain engineering B concrete carbonization depth performance of embodiment 2.
(6) the C55 concrete of certain engineering B need to meet comprcssive strength more than 65MPa, within 28 days, do not ftracture, alkali-aggregate reaction
Swell value less than 0.1%, chloride ion transport coefficient is less than 2.5 × 10-12m2/ s, carbonation depth are less than 2.0mm, according to these performances
Require to determine the safety zone under Binder Materials composition different performance, the C55 concrete gelling material of its overlay region A certain engineering B i.e.
The optimal composition of material, is shown in Fig. 5.Choosing match ratio B-8 at overlay region A to verify, match ratio B-8 prepares the pressure resistance of concrete
Degree for 69MPa, within 28 days, do not ftracture, alkali-aggregate reaction swell value be 0.06%, chloride ion transport coefficient be 2.1 × 10-12m2/ s, carbon
The change degree of depth is 1.9mm, meets the design requirement of the C55 concrete of certain engineering B.
The present invention (sees figure based on single-barycenter design theory, the Binder Materials composition choosing seven characteristic point design concrete
1), preparing concrete, the performance of test concrete according to the Binder Materials composition shown in Fig. 1, the performance drawing concrete is equivalent
Line chart.According to the performance requirement of concrete, marking the critical line of the concrete that meets the requirements each performance isogram, different performance faces
The overlapping region in boundary line is the concrete gel material composition meeting multiple performance requirement.The inventive method not only operates letter
Single, time saving and energy saving, and the correlated performance of concrete under non-test point can be predicted the most accurately, set for cement components
Meter provides foundation.
Claims (7)
1. a high performance concrete method for designing based on multiple performance requirement, it is characterised in that comprise the steps:
(1) according to maximal unit weight method, by test sandstone maximum unit weight method determine slightly, the composition of fine aggregate；
(2) the maximum water-cement ratio of high performance concrete is calculated according to Bolomey's formula, in conjunction with " durability design is advised
Model " (GB/T 50476-2008), determine water-cement ratio；
(3) by test sandstone apparent density and the bulk density of sandstone compound, aggregate voidage is calculated, and according to slurry more than needed
Body is theoretical, in conjunction with " durability design specification " (GB/T 50476-2008), determines the total consumption of Binder Materials and use
The water yield；
(4) apply single-centroid method design Binder Materials composition, and carry out concrete test, base according to the proportioning of above-mentioned calculating
In concrete flowability requirement, determine additive kind and volume by test；
(5) the concrete correlated performance that test different Binder Materials composition is lower, set up Binder Materials composition and concrete performance it
Between relation；
(6) on figure, make the graph of a relation between Binder Materials composition and each concrete performance, property based on multiple concrete
Energy requirement, determines the safety zone that Binder Materials forms, and the overlay region of variable performance zones is the optimal composition of Binder Materials.
High performance concrete method for designing based on multiple performance requirement the most according to claim 1, it is characterised in that step
Suddenly, in (2), water-cement ratio is less than Bolomey's formula result of calculation and " durability design specification " (GB/T 50476-
2008) requirement in.
High performance concrete method for designing based on multiple performance requirement the most according to claim 2, it is characterised in that from
The requirement of Bolomey's formula result of calculation and " durability design specification " (GB/T 50476-2008) is chosen relatively
Little value, for ensureing concrete strength, smaller value subtracts 0.01 ~ and 0.03, it is the water-cement ratio of design.
High performance concrete method for designing based on multiple performance requirement the most according to claim 1 and 2, its feature exists
In, in step (4), the percentage ratio sum of Binder Materials should meet x1+x2+……+xn =100%。
High performance concrete method for designing based on multiple performance requirement the most according to claim 1 and 2, its feature exists
In, in step (4), the percentage composition of arbitrary Binder Materials composition should meet 0≤xm ≤100%。
High performance concrete method for designing based on multiple performance requirement the most according to claim 1 and 2, its feature exists
In, in step (4), additive kind and volume are determined by slumping.
High performance concrete method for designing based on multiple performance requirement the most according to claim 1 and 2, its feature exists
In, in step (5), the relation between Binder Materials composition and concrete performance is determined by single-barycenter design principle.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114686891A (en) * | 2022-04-26 | 2022-07-01 | 湖南大学 | Oil-gas pipeline stray current treatment method and system |
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| CN103353518A (en) * | 2013-06-27 | 2013-10-16 | 湖南大学 | Design method of ternary component cementing material for inhibiting alkali-aggregate reaction |
| CN103992076A (en) * | 2014-05-27 | 2014-08-20 | 广西大学 | Design method of concrete mix ratio based on requirements of index of resistance to chloride ion intrusion and strength index |
| CN105224727A (en) * | 2015-09-11 | 2016-01-06 | 郑州大学 | A kind of autodensing concrete almixture mixing proportion design method |
-
2016
- 2016-05-31 CN CN201610374781.XA patent/CN106007541A/en active Pending
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|---|---|---|---|---|
| CN103353518A (en) * | 2013-06-27 | 2013-10-16 | 湖南大学 | Design method of ternary component cementing material for inhibiting alkali-aggregate reaction |
| CN103992076A (en) * | 2014-05-27 | 2014-08-20 | 广西大学 | Design method of concrete mix ratio based on requirements of index of resistance to chloride ion intrusion and strength index |
| CN105224727A (en) * | 2015-09-11 | 2016-01-06 | 郑州大学 | A kind of autodensing concrete almixture mixing proportion design method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114686891A (en) * | 2022-04-26 | 2022-07-01 | 湖南大学 | Oil-gas pipeline stray current treatment method and system |
| CN114686891B (en) * | 2022-04-26 | 2022-12-02 | 湖南大学 | Oil-gas pipeline stray current treatment method and system |
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