CN110451891A - Light high strength concrete mixing proportion design method - Google Patents
Light high strength concrete mixing proportion design method Download PDFInfo
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- CN110451891A CN110451891A CN201910798566.6A CN201910798566A CN110451891A CN 110451891 A CN110451891 A CN 110451891A CN 201910798566 A CN201910798566 A CN 201910798566A CN 110451891 A CN110451891 A CN 110451891A
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000011372 high-strength concrete Substances 0.000 title claims abstract description 45
- 238000013461 design Methods 0.000 title claims abstract description 40
- 239000004567 concrete Substances 0.000 claims abstract description 68
- 239000004568 cement Substances 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 21
- 229910021487 silica fume Inorganic materials 0.000 claims description 15
- 238000012360 testing method Methods 0.000 claims description 14
- 239000010881 fly ash Substances 0.000 claims description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 11
- 239000011707 mineral Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 229920005646 polycarboxylate Polymers 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 239000011398 Portland cement Substances 0.000 claims description 3
- 239000012615 aggregate Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000979 retarding effect Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000010883 coal ash Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 1
- 239000003469 silicate cement Substances 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000010415 tropism Effects 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- C04B2111/52—Sound-insulating materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
Light high strength concrete mixing proportion design method.Traditional mix Design follows Bolomey's formula, i.e. concrete strength and water-cement ratio relational expression, and light high strength concrete is different from conventional concrete, and it is very low that mix-design continues to use conventional concrete mixing proportion design method success rate.Present invention composition includes: three kinds of selection different cement consumption trial mix concrete, 20kg is differed between every kind of different cement consumptions, it is constant to control the slump, with the last practical water-cement ratio of actual used water amount inverse, by folk prescription raw material usage determined above, it is expected that water-cement ratio, different match ratios 25~35 liters of concrete of equal trial mix, to examine the concrete mix slump and intensity, the slump of fresh concrete is detected after stirring, static a period of time detection concrete slump gradual loss in lidded container is put into after meeting the requirements, this index finally appraises and decides practical water-cement ratio after meeting the requirements.The present invention is used for the mix-design of light high strength concrete.
Description
Technical field:
The present invention relates to a kind of light high strength concrete mixing proportion design methods.
Background technique:
Light high strength concrete is also referred to as high-strength lightweight concrete (High-Strength Light Weight in China
Concrete, abbreviation HSLC), refer to gathered materials using high-strength thickness, the dry apparent density that cement and water are formulated is not more than
1950kg/m3, strength grade is the structure lightweight concrete of LC30 or more.
Traditional mix Design follows Bolomey's formula, i.e. concrete strength and water-cement ratio relationship
Formula, in the match ratio, water-cement ratio is obtained by theoretical calculation, and light high strength concrete and conventional concrete have very very much not
Together, it is very low to continue to use conventional concrete mixing proportion design method success rate for mix-design, therefore present invention is significantly different from biographies
System method.
Summary of the invention:
An expected water-cement ratio is drafted in advance the object of the present invention is to provide a kind of, when trial, must not exceed the water-cement ratio, in conjunction with
Targetedly, the light high strength concrete mixing proportion design method of directive test, to solve conventional concrete match ratio
The low problem of design success rate.
Above-mentioned purpose is realized by following technical scheme:
A kind of light high strength concrete mixing proportion design method, this method comprises the following steps:
Step 1: the light high strength concretes material therefor such as selection fine aggregate, cement, additive, mineral admixture；
Step 2: the cement consumption of a selected cubic meter of concrete, water-cement ratio desired value determine one cubic metre by assumed density method
Then the apparent density of concrete calculates a cubic meter of concrete a variety of materials dosage；
Step 3: the cubic meter of concrete a variety of materials dosage calculated according to step 2,25~35 liters of concrete of trial mix；
Step 4: the slump of fresh concrete is detected after stirring, static one section is put into lidded container after meeting the requirements
Time detects concrete slump gradual loss, this index finally appraises and decides water-cement ratio after meeting the requirements；
Step 5: after being met the requirements by the Slump Time losing of Large of the time interval determination of stirring, transport and Construction control, measurement
Each material utilization amount of match ratio can not be adjusted when the apparent density of concrete, the density and hypothesis apparent density error are less than 2%, instead
It, which need to correct adjustment each material utilization amount of match ratio when being more than or equal to 2%, finally appraise and decide the practical apparent close of the concrete
Degree；
Step 6: packing compact forming concrete sample is covered with plastic foil, is placed on 20 ± 2 DEG C, relative humidity is greater than 95% ring
The test specimen of demoulding is placed on 20 ± 2 DEG C to demoulding by maintenance in border, relative humidity conserved in the moisture health-preserving chamber greater than 95% to
The age needed tests each age strength；
Step 7: according to two kinds of way reselection different cement consumption trial mix concrete of step 2, this two kinds of cement consumption ratios
The cement consumption of step 2 selection increases and decreases 20kg respectively, and the control slump is constant, with the last practical glue of actual used water amount inverse
Than；
Step 8: the light high strength concrete match ratio of the two kinds of cement consumptions determined with step 7 also presses step 2 to step 7
25~35 liters of concrete of method trial mix, the slump meets the requirements rear shaping test piece and tests each age strength, and each age strength is all
It after being completed, is compared with three groups of match ratios, 28 days age strengths, therefrom chooses the slump and meet the requirements, intensity is high, comprehensive
This reckling is synthesized as benchmark match ratio.
The light high strength concrete mixing proportion design method, the detailed process of trial mix in the step three are as follows: will
Load weighted fine aggregate is added in blender, stirs the water of addition 65% after 15s, stirs 25~35 s, and cement and mine is then added
Polymer blends material stirs 40~60s, is subsequently added into 25% water and high-performance water reducing agent, stirs 90~120s, observes while stirring
Concrete workability requires if concrete slump is less than, and remaining 10% water is added；If concrete slump still less than requiring,
The high-performance water reducing agent for then continuously adding 0.2%~0.5% continues 90~120s of stirring, if concrete slump is met the requirements,
Discharging detection concrete slump and apparent density, finally appraise and decide actual used water amount, appraise and decide practical water-cement ratio, which must not
Greater than the expection water-cement ratio drafted in advance, it otherwise should repeat step 2 to step 7 and work.
The light high strength concrete mixing proportion design method, the fine aggregate are pottery sand, the pottery sand fineness modulus
It is 1.8~2.5, bulk density is 850~950kg/m3, apparent density is 1900~2160kg/m3。
The light high strength concrete mixing proportion design method, the cement are portland cement or normal silicate
Cement, strength grade are equal to or more than 42.5, and 28 days flexural strengths of cement are greater than 7.5 MPa, and compression strength is greater than 48.0 MPa.
The light high strength concrete mixing proportion design method, the additive are polycarboxylate system's slow setting high-performance
Water-reducing agent or polycarboxylate system's efficient retarding and water reducing agent.
The light high strength concrete mixing proportion design method, the mineral admixture are I grade of flyash and dioxy
SiClx content is greater than 95% SILICA FUME.
The light high strength concrete mixing proportion design method, the mineral admixture total amount are cement, flyash
Between the 20%~30% of three kinds of binder total amounts of SILICA FUME.
The light high strength concrete mixing proportion design method, the volume of the flyash account for cement, flyash and
Between the 15%~20% of three kinds of binder total amounts of SILICA FUME.
The light high strength concrete mixing proportion design method, the volume of the SILICA FUME be cement, flyash and
The 5%~10% of three kinds of binder total amounts of SILICA FUME.
The utility model has the advantages that
1. not using coarse aggregate in light high strength concrete match ratio of the present invention, aggregate is all made of fine aggregate, mixed to improve
Solidifying soil matrix body uniformity, improves pore structure, in this way and its be conducive to protrude the concrete specific strength it is higher, fire resisting, sound insulation,
The advantages that heat preservation, anti-seismic performance is good.
The slump of light high strength concrete of the present invention uses the building mortar consistency method of inspection, that is, degree of sinking to method.
The water-cement ratio of light high strength concrete of the present invention is not that theoretical calculation comes out, and concrete mix is also not only
By calculating and designing the simple problem that just can solve, but on the basis of practical experience accumulation and constantly summary, according to coagulation
Native strength grade size drafts an expected water-cement ratio in advance, and when trial must not exceed the water-cement ratio, in conjunction with targetedly, the side of having
The test of tropism and the practicality conclusion obtained.The mix Design process carried out as core is simple and clear, at
Power is very high, and cost performance is highly satisfactory.Prove that there is very strong operability and practicability through a large amount of engineering practices.
Specific embodiment:
Embodiment 1:
A kind of light high strength concrete mixing proportion design method, this method comprises the following steps:
Step 1: the light high strength concretes material therefor such as selection fine aggregate, cement, additive, mineral admixture；
Step 2: the cement consumption of a selected cubic meter of concrete, water-cement ratio desired value determine one cubic metre by assumed density method
Then the apparent density of concrete calculates a cubic meter of concrete a variety of materials dosage；
Step 3: the cubic meter of concrete a variety of materials dosage calculated according to step 2,25~35 liters of concrete of trial mix；
Step 4: the slump of fresh concrete is detected after stirring, static one section is put into lidded container after meeting the requirements
Time detects concrete slump gradual loss, this index finally appraises and decides water-cement ratio after meeting the requirements；
Step 5: after being met the requirements by the Slump Time losing of Large of the time interval determination of stirring, transport and Construction control, measurement
Each material utilization amount of match ratio can not be adjusted when the apparent density of concrete, the density and hypothesis apparent density error are less than 2%, instead
It, which need to correct adjustment each material utilization amount of match ratio when being more than or equal to 2%, finally appraise and decide the practical apparent close of the concrete
Degree；
Step 6: packing compact forming concrete sample is covered with plastic foil, is placed on 20 ± 2 DEG C, relative humidity is greater than 95% ring
The test specimen of demoulding is placed on 20 ± 2 DEG C to demoulding by maintenance in border, relative humidity conserved in the moisture health-preserving chamber greater than 95% to
The age needed tests each age strength；
Step 7: according to two kinds of way reselection different cement consumption trial mix concrete of step 2, this two kinds of cement consumption ratios
The cement consumption of step 2 selection increases and decreases 20kg respectively, and the control slump is constant, with the last practical glue of actual used water amount inverse
Than；
Step 8: the light high strength concrete match ratio of the two kinds of cement consumptions determined with step 7 also presses step 2 to step 7
25~35 liters of concrete of method trial mix, the slump meets the requirements rear shaping test piece and tests each age strength, and each age strength is all
It after being completed, is compared with three groups of match ratios, 28 days age strengths, therefrom chooses the slump and meet the requirements, intensity is high, comprehensive
This reckling is synthesized as benchmark match ratio.
Embodiment 2:
According to light high strength concrete mixing proportion design method described in embodiment 1, the specific mistake of trial mix in the step three
Journey are as follows: load weighted fine aggregate is added in blender, stirs the water of addition 65% after 15s, stirs 25~35 s, is then added
Cement and mineral admixture stir 40~60s, are subsequently added into 25% water and high-performance water reducing agent, 90~120s are stirred, while stirring
Side observation concrete workability is mixed, is required if concrete slump is less than, remaining 10% water is added；If concrete slump is still
Less than requirement, then 0.2%~0.5% high-performance water reducing agent is continuously added, continue 90~120s of stirring, if concrete slump is full
Foot requires, then discharges and detect concrete slump and apparent density, finally appraise and decide actual used water amount, appraise and decide practical water-cement ratio, should
Water-cement ratio is not greater than the expection water-cement ratio drafted in advance, otherwise should repeat step 2 to step 7 and work.
Embodiment 3:
The light high strength concrete mixing proportion design method according to embodiment 1 or 2, it is characterized in that: the fine aggregate is
Pottery sand, the pottery sand fineness modulus are 1.8~2.5, and bulk density is 850~950kg/m3, apparent density be 1900~
2160kg/m3。
Embodiment 4:
According to light high strength concrete mixing proportion design method described in embodiment 1 or 2 or 3, the cement is silicate cement
Mud or ordinary portland cement, strength grade are equal to or more than 42.5, and 28 days flexural strengths of cement are greater than 7.5 MPa, pressure resistance
Degree is greater than 48.0 MPa.
Embodiment 5:
According to light high strength concrete mixing proportion design method described in embodiment 1 or 2 or 3 or 4, the additive is poly- carboxylic
Phosphate-gallate series slow setting high-performance water reducing agent or polycarboxylate system's efficient retarding and water reducing agent.
Embodiment 6:
According to light high strength concrete mixing proportion design method described in embodiment 1 or 2 or 3 or 4 or 5, the mineral are blended
Material is the SILICA FUME that I grade of flyash and dioxide-containing silica are greater than 95%.
Embodiment 7:
According to light high strength concrete mixing proportion design method described in embodiment 1 or 2 or 3 or 4 or 5 or 6, the mineral are mixed
Close material total amount be cement, three kinds of binder total amounts of flyash and SILICA FUME 20%~30% between.
Embodiment 8:
According to light high strength concrete mixing proportion design method described in embodiment 1 or 2 or 3 or 4 or 5 or 6 or 7, the powder
The volume of coal ash account for cement, three kinds of binder total amounts of flyash and SILICA FUME 15%~20% between.
Embodiment 9:
It is described according to light high strength concrete mixing proportion design method described in embodiment 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8
The volume of SILICA FUME be cement, three kinds of binder total amounts of flyash and SILICA FUME 5%~10%.
Claims (9)
1. a kind of light high strength concrete mixing proportion design method, it is characterized in that: this method comprises the following steps:
Step 1: the light high strength concretes material therefor such as selection fine aggregate, cement, additive, mineral admixture；
Step 2: the cement consumption of a selected cubic meter of concrete, water-cement ratio desired value determine one cubic metre by assumed density method
Then the apparent density of concrete calculates a cubic meter of concrete a variety of materials dosage；
Step 3: the cubic meter of concrete a variety of materials dosage calculated according to step 2,25~35 liters of concrete of trial mix；
Step 4: the slump of fresh concrete is detected after stirring, static one section is put into lidded container after meeting the requirements
Time detects concrete slump gradual loss, this index finally appraises and decides water-cement ratio after meeting the requirements；
Step 5: after being met the requirements by the Slump Time losing of Large of the time interval determination of stirring, transport and Construction control, measurement
Each material utilization amount of match ratio can not be adjusted when the apparent density of concrete, the density and hypothesis apparent density error are less than 2%, instead
It, which need to correct adjustment each material utilization amount of match ratio when being more than or equal to 2%, finally appraise and decide the practical apparent close of the concrete
Degree；
Step 6: packing compact forming concrete sample is covered with plastic foil, is placed on 20 ± 2 DEG C, relative humidity is greater than 95% ring
The test specimen of demoulding is placed on 20 ± 2 DEG C to demoulding by maintenance in border, relative humidity conserved in the moisture health-preserving chamber greater than 95% to
The age needed tests each age strength；
Step 7: according to two kinds of way reselection different cement consumption trial mix concrete of step 2, this two kinds of cement consumption ratios
The cement consumption of step 2 selection increases and decreases 20kg respectively, and the control slump is constant, with the last practical glue of actual used water amount inverse
Than；
Step 8: the light high strength concrete match ratio of the two kinds of cement consumptions determined with step 7 also presses step 2 to step 7
25~35 liters of concrete of method trial mix, the slump meets the requirements rear shaping test piece and tests each age strength, and each age strength is all
It after being completed, is compared with three groups of match ratios, 28 days age strengths, therefrom chooses the slump and meet the requirements, intensity is high, comprehensive
This reckling is synthesized as benchmark match ratio.
2. light high strength concrete mixing proportion design method according to claim 1, it is characterized in that: in the step three
The detailed process of trial mix are as follows: load weighted fine aggregate is added in blender, stirs the water of addition 65% after 15s, stirring 25~35
Then cement and mineral admixture is added in s, stir 40~60s, is subsequently added into 25% water and high-performance water reducing agent, and stirring 90~
120s observes concrete workability while stirring, requires if concrete slump is less than, and remaining 10% water is added；If concrete
The slump then continuously adds 0.2%~0.5% high-performance water reducing agent, continues 90~120s of stirring, if concrete still less than requiring
The slump is met the requirements, then discharges and detect concrete slump and apparent density, finally appraises and decides actual used water amount, appraises and decides practical water
Glue ratio, the water-cement ratio are not greater than the expection water-cement ratio drafted in advance, otherwise should repeat step 2 to step 7 and work.
3. light high strength concrete mixing proportion design method according to claim 1, it is characterized in that: the fine aggregate is
Pottery sand, the pottery sand fineness modulus are 1.8~2.5, and bulk density is 850~950kg/m3, apparent density be 1900~
2160kg/m3。
4. light high strength concrete mixing proportion design method according to claim 1, it is characterized in that: the cement is silicon
Acid salt cement or ordinary portland cement, strength grade are equal to or more than 42.5, and 28 days flexural strengths of cement are greater than 7.5 MPa,
Compression strength is greater than 48.0 MPa.
5. light high strength concrete mixing proportion design method according to claim 1, it is characterized in that: the additive is
Polycarboxylate system's slow setting high-performance water reducing agent or polycarboxylate system's efficient retarding and water reducing agent.
6. light high strength concrete mixing proportion design method according to claim 1, it is characterized in that: the mineral blend
Material is the SILICA FUME that I grade of flyash and dioxide-containing silica are greater than 95%.
7. light high strength concrete mixing proportion design method according to claim 1, it is characterized in that: the mineral blend
Material total amount be cement, three kinds of binder total amounts of flyash and SILICA FUME 20%~30% between.
8. light high strength concrete mixing proportion design method according to claim 6 or 7, it is characterized in that: the fine coal
Ash volume account for cement, three kinds of binder total amounts of flyash and SILICA FUME 15%~20% between.
9. light high strength concrete mixing proportion design method according to claim 8, it is characterized in that: the SILICA FUME
Volume be cement, three kinds of binder total amounts of flyash and SILICA FUME 5%~10%.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735938A (en) * | 2020-08-03 | 2020-10-02 | 赖志标 | Premixed concrete quality monitoring and early warning method and system |
| CN111768817A (en) * | 2020-04-24 | 2020-10-13 | 中国建材检验认证集团贵州有限公司 | Method for confirming mixing proportion of high-performance concrete |
| CN111875305A (en) * | 2020-07-31 | 2020-11-03 | 中铁大桥局集团有限公司 | Method for determining ultra-high density ballast concrete and construction mix proportion |
| CN113910447A (en) * | 2021-10-20 | 2022-01-11 | 广西大学 | Concrete mix proportion design method based on pouring construction performance target regulation |
| CN114516742A (en) * | 2022-02-25 | 2022-05-20 | 中铁二十三局集团轨道交通工程有限公司 | Concrete mixing proportion selection method doped with gel reducer |
| CN115028407A (en) * | 2022-05-27 | 2022-09-09 | 深圳市明远建筑科技有限公司 | Lightweight high-strength foam concrete and preparation method thereof |
| WO2023206692A1 (en) * | 2022-04-28 | 2023-11-02 | 中交公路长大桥建设国家工程研究中心有限公司 | Method for rapidly optimizing mix proportion of precast concrete components |
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| CN111768817A (en) * | 2020-04-24 | 2020-10-13 | 中国建材检验认证集团贵州有限公司 | Method for confirming mixing proportion of high-performance concrete |
| CN111875305A (en) * | 2020-07-31 | 2020-11-03 | 中铁大桥局集团有限公司 | Method for determining ultra-high density ballast concrete and construction mix proportion |
| CN111735938A (en) * | 2020-08-03 | 2020-10-02 | 赖志标 | Premixed concrete quality monitoring and early warning method and system |
| CN113910447A (en) * | 2021-10-20 | 2022-01-11 | 广西大学 | Concrete mix proportion design method based on pouring construction performance target regulation |
| CN114516742A (en) * | 2022-02-25 | 2022-05-20 | 中铁二十三局集团轨道交通工程有限公司 | Concrete mixing proportion selection method doped with gel reducer |
| WO2023206692A1 (en) * | 2022-04-28 | 2023-11-02 | 中交公路长大桥建设国家工程研究中心有限公司 | Method for rapidly optimizing mix proportion of precast concrete components |
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