CN108409252A - A kind of regular tenacity high durability concrete and preparation method thereof - Google Patents
A kind of regular tenacity high durability concrete and preparation method thereof Download PDFInfo
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- CN108409252A CN108409252A CN201810398803.5A CN201810398803A CN108409252A CN 108409252 A CN108409252 A CN 108409252A CN 201810398803 A CN201810398803 A CN 201810398803A CN 108409252 A CN108409252 A CN 108409252A
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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
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
- C04B14/4643—Silicates other than zircon
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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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0616—Macromolecular compounds fibrous from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B16/0625—Polyalkenes, e.g. polyethylene
- C04B16/0633—Polypropylene
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/146—Silica fume
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/74—Underwater applications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- 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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Abstract
The present invention provides a kind of regular tenacity high durability concretes, including following raw material to be made：Water-reducing agent, cement, silicon ash, flyash, slag, river sand, rubble, water, basalt fibre and polypropylene fibre.The present invention also provides a kind of regular tenacity high durability concrete preparation methods using above-mentioned concrete formulation, this method is gradually quantitatively adding in batches by sandstone aggregate, cementitious material, fiber, water-reducing agent and water, the regular tenacity high durability concrete is made in timing agitation, standardization maintenance.The regular tenacity high durability concrete of the present invention solves the problems, such as that prevention of marine concrete structures frequently suffers from freeze thawing, chemical attack, the crystal effect of salt contained by seawater and marine microorganism effect and causes durability poor.Regular tenacity high durability concrete intensity of the invention is good, Anti-Chloride Ion Penetration is excellent, and raw material are Industry Waste rejected material, and materials are easy, environmental protection and economy.The operation of concrete mixing process and equipment requirement substantially reduce.
Description
Technical field
The present invention relates to technical field of civil engineering, are related to concrete and its preparation, and in particular to a kind of regular tenacity is high
Durability concrete and preparation method thereof.
Background technology
With the development of human society, marine resources space is developed and used, accelerates ocean and islands and reefs engineering foundation facility is built
If be socio-economic development, national product life, marine resources development there is an urgent need to and safeguard the great of Homeland Security
Strategic Demand.With the development of exploitation and the sea transport of marine resources, a large amount of sea port dock has been created in recent years, ocean is put down
The offshore engineering structures such as platform, breakwater bridge spanning the sea, seabed tunnel, wherein most prevention of marine concrete structures only need common strong
Degree concrete can meet its security requirement.However, due to containing more Cl in seawater-、SO4 2-、Na2+、Mg2+Plasma,
In addition marine environment humidity is big, air salt fog content is high, salt fog settling amount is big, precipitation is frequent, above-mentioned prevention of marine concrete structures warp
It is often acted on by the effect of the crystal of salt contained by freeze thawing, chemical attack, seawater and marine microorganism and makes concrete structure
Generate serious endurance issues.It is to improve effectively arranging for concrete durability that mineral admixture and fiber are added in concrete
It applies.
Mineral admixture is using one or more of oxides such as aluminium, silicon, calcium as main component, mixes in concrete and can improve
The powder body material of fresh concrete or properties of hardened concrete.Mineral admixture is otherwise known as supplementary cementitious material, usually has
Pozzolanic activity or latent hydraulicity.The addition of mineral admixture can not only reduce cement consumption, also make corrosion-vulnerable
C3A、Ca(OH)2Content is reduced, and the active constituent of mineral admixture and Ca (OH)2Secondary reaction of hydration occurs, it can be further
Reduce Ca (OH)2Content；At the same time, the micro aggregate effect of active mineral admixture and volcano ash effect can be reduced in concrete
Big pore makes concrete inner structure become finer and close so as to improve the interface transition layer and pore structure of concrete.
Therefore, mineral admixture can make the endurance qualities such as the impermeability, frost resistance, resisting erosion of sulfate of concrete get a promotion, right
Alkali-aggregate reaction also has good inhibiting effect.Industry is not only reduced using mineral admixture as the component materials of concrete
Environmental pollution caused by waste residue and resource consumption caused by due to producing cement, moreover it is possible to effectively improve the durability of concrete
Energy.
Fiber mainly improves the endurance quality of concrete by physical action, since the elasticity modulus of fiber is higher than condensation
The elasticity modulus of the concrete at initial stage can increase plasticity and harden the tensile strength of initial stage complex, effectively inhibit early stage
The generation and development of desciccation crack reduce the micro-crack of inside concrete, improve concrete inner structure, reduce porosity, suppression
The generation of intercommunicating pore processed；Meanwhile fiber makes matrix dehydration area reduce, water translocation is difficult, reduces capillary dehydration shrinkage shape
At capillary tension, the fiber of random distribution also blocked the pore in concrete, improves the crack resistance of concrete and anti-
Oozing property.Currently, the fiber added in concrete has glass fibre, organic matter plant fiber, metallic fiber, polypropylene fibre, profound
Military rock fiber etc..
Glass fiber reinforced cement product, and the Ca in Behavior of Hardened Cement Paste liquid phase are mainly used using glass reinforced concrete glass
(OH)2The silicon oxygen bond of glass fibre can be made to be broken, SiO2With Ca (OH)2It reacts and generates the hydrated calcium silicate of low calcium, this
Kind reaction can carry out the SiO into glass2Until completely consuming, thus the tensile strength of glass fibre substantially reduces, and makes to mix
The performance deterioration of soil is coagulated, therefore can not be applied on a large scale and constructed in object in concrete construction；Using the mixed of organic matter plant fiber
Solidifying soil is since fibre diameter is larger, and intensity is relatively low, poor with cement-based material bond effect, therefore no large-scale promotion makes
With；Compression strength, the flexural strength of concrete are improved using the metallic fiber of metallic fiber or plating antirust coat, can effectively be limited
The generation of concrete cracks processed, makes concrete performance be substantially improved, but the corrosion of metallic fiber can lead to endurance performance of concrete
It reduces, and the engineer application of the metallic fiber of coating antirust coat is restricted by economic benefit again；Mixing polypropylene fibre can carry
The cracking resistance and anti-permeability performance of high concrete, inhibit the generation of early cracks of concrete, improve the ductility and shock resistance energy of concrete
The polypropylene fibre of singly mixing of power, suitable volume has apparent cracking resistance and toughening effect to concrete.Basalt fibre extension
Rate is better than the carbon fiber of small tow, and tensile strength is better than large-tow carbon fiber, is mixed and anti-crack and anti-seepage can be improved in concrete
Performance increases tough wear-resistant hard and erosion wear resistance, reinforcing, extends construction of structures service life, and therefore, basalt fibre exists
Traffic, sea port dock, nuclear power set the fields such as military installations and Industrial and Civil Engineering and are widely applied increasingly.
Following patent document describes the technical solution CN106517957A being closer to and discloses a kind of " regular tenacity height
Elasticity modulus concrete and preparation method thereof ", fiber are that metallic fiber is subject to ocean and invades in maritime concrete
The corrosion for losing environment, reduces its durability, and its nano material cost used is higher.CN106587800A discloses " alkali
Property Basalt fiber concrete " preparation method, the match ratio of the concrete mainly considers to improve the fire resistance of material, and right
Its endurance quality is not yet related to.CN101665342A discloses the preparation side of " a kind of high-tenacity crack-control impervious fiber concrete "
Method, the concrete prepare high tenacity concrete using active blend and fiber, the toughness and ductility of main reinforcing concrete, and
And the cost of the organic fiber in raw material is higher.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of regular tenacity high-durability coagulation
Soil and preparation method thereof, solve prevention of marine concrete structures frequently suffer from freeze thawing, chemical attack, salt contained by seawater crystal make
With and marine microorganism act on and lead to the problem of durability difference.
In order to solve the above-mentioned technical problem, the present invention is realised by adopting the following technical scheme：
A kind of regular tenacity high durability concrete, the regular tenacity high durability concrete are made of following raw material：Subtract
Aqua, cement, silicon ash, flyash, slag, river sand, rubble, water, basalt fibre and polypropylene fibre.
The present invention also has following technical characteristic：
Specifically, under per unit volume in terms of parts by weight, it is made of following raw material：Water-reducing agent is 10 parts, cement 600
~700 parts, silicon ash is 20~80 parts, and flyash is 50~250 parts, and slag is 50~200 parts, and 1500~2000 parts of river sand is broken
Stone is 2000~3200 parts, 250~450 parts of water, 2.5~7.0 parts of basalt fibre, and polypropylene fibre is 0.1~1.5 part.
Preferably, it under per unit volume in terms of parts by weight, is made of following raw material：Water-reducing agent is 10 parts, cement 610
~690 parts, silicon ash is 35~65 parts, and flyash is 100~200 parts, and slag is 100~150 parts, 1600~1900 parts of river sand,
Rubble is 2100~3200 parts, 290~440 parts of water, 2.5~6.5 parts of basalt fibre, and polypropylene fibre is 0.4~1.3 part.
Preferably, it under per unit volume in terms of parts by weight, is made of following raw material：Water-reducing agent is 10 parts, cement 640
Part, silicon ash is 60 parts, and flyash is 200 parts, and slag is 100 parts, 1866 parts of river sand, and rubble is 3177 parts, 440 parts of water, the Black Warrior
3.5 parts of rock fiber, polypropylene fibre are 1.26 parts.
Preferably, it under per unit volume in terms of parts by weight, is made of following raw material：Water-reducing agent is 10 parts, cement 610
Part, silicon ash is 40 parts, and flyash is 200 parts, and slag is 150 parts, 1726 parts of river sand, and rubble is 2938 parts, 380 parts of water, the Black Warrior
6.46 parts of rock fiber, polypropylene fibre are 0.58 part.
Preferably, it under per unit volume in terms of parts by weight, is made of following raw material：Water-reducing agent is 10 parts, cement 690
Part, silicon ash is 60 parts, and flyash is 100 parts, and slag is 150 parts, 1603 parts of river sand, and rubble is 2125 parts, 290 parts of water, the Black Warrior
2.65 parts of rock fiber, polypropylene fibre are 0.48 part.
Specifically, the water-reducing agent is polycarboxylate water-reducer, aliphatic water reducing agent, amino water-reducing agent and naphthalene water reducer
In one or more compounded combinations in addition to the compounded combination comprising naphthalene water reducer and polycarboxylate water-reducer；
The cement is Portland cement；
The specific surface area mean value of the slag is 410m2/kg；
The river sand fineness modulus is 2.8, clay content 0.3%, apparent density 2.61g/cm3, bulk density is
1.44g/cm3；
The rubble is the rubble continuous grading that grain size is 5~20mm, and the rubble apparent density is 2.7g/cm3,
Bulk density is 1.45g/cm3；
15 μm, length 18mm, density 2.56g/cm of the basalt fibre filament diameter3；
30 μm, length 19mm, density 0.91g/cm of the polypropylene fibre diameter3。
The present invention also protects a kind of preparation method of regular tenacity high durability concrete, the preparation method to use institute as above
The formula for the regular tenacity high durability concrete stated, this approach includes the following steps：
A load weighted river sand and rubble) are put into blender, stirring timing 0.5min；
B load weighted silicon ash, flyash, slag) are put into blender, stirring timing 2min；
C) load weighted polypropylene fibre is broken up to and is slowly put into blender, stirring timing 3min；
D) load weighted basalt fibre is broken up to and is slowly put into blender, stirring timing 2min；
E it) will weigh good and the water-reducing agent of water mixing added to put into blender, stirring timing 2min；
F) by the concrete mix input mold of gained mixing in step E, the equipment vibration compacting that vibrates is used；
G form removal after) being stored at room temperature for 24 hours, trip temperature of going forward side by side is 20 ± 2 DEG C, standardization of the relative humidity more than 95% conserves,
Curing time is to 28d.
Compared with prior art, the present invention having the following technical effect that：
(I) ratio of the invention by each component in the suitable water-cement ratio of determination, cementitious material, and it is mixed that fiber adjustment is added
Solidifying soil shrinks performance of resisting cracking, so the workability for the high durability concrete prepared is good, strength grade meet it is at different levels strong
Degree requires, Anti-Chloride Ion Penetration is excellent.Coagulation is greatly improved in the case where concrete strength does not change
The durability of soil.
(II) present invention is easy by using Industry Waste rejected material, materials, and the prices of raw materials are cheap, reduces concrete preparation
Cost, economy and the feature of environmental protection are all higher.
(III) present invention is maintaining concrete strength by certain raw material and match ratio and the mixing flow of reasonable design
And be greatly improved on the basis of durability, also so that the concrete mixing operation of the present invention requires and equipment requirement substantially reduces,
The high durability concrete of the present invention is set to be easy to Project Realization and application.
Description of the drawings
Fig. 1 is that each intensity rank 28d electricity of high durability concrete match ratio that the present invention is determined using efficiency coefficient method is logical
Amount；
Fig. 2 is each intensity rank 28d resistance to compressions of high durability concrete match ratio that the present invention is determined using efficiency coefficient method
Intensity；
Fig. 3 is that each intensity rank 28d of high durability concrete match ratio that the present invention is determined using efficiency coefficient method collapses
Degree.
Explanation is further explained in detail to the particular content of the present invention with reference to the accompanying drawings and embodiments.
Specific implementation mode
In compliance with the above technical solution, specific embodiments of the present invention are given below, it should be noted that the present invention not office
It is limited to following specific examples, all equivalent transformations made on the basis of the technical solutions of the present application each falls within the protection model of the present invention
It encloses.
Embodiment 1：
The present embodiment provides a kind of regular tenacity high durability concrete, under per unit volume in terms of parts by weight, by with
Lower raw material is made：Water-reducing agent is 10 parts, and cement is 640 parts, and silicon ash is 60 parts, and flyash is 200 parts, and slag is 100 parts, river sand
1866 parts, rubble is 3177 parts, 440 parts of water, 3.5 parts of basalt fibre, and polypropylene fibre is 1.26 parts.
Water-reducing agent in the present embodiment selects the polycarboxylic acids of commercially available Jiangsu Subotexin Material Co., Ltd's production high
Performance water-reducing agent, solid content 40%, water-reducing rate 30%, alkali content 6.5%, chloride ion content 0.18%；
The P.O 42.5R ordinary silicons of cement selection commercially available Qinling Mountains in Shaanxi cement limited liability company production in the present embodiment
Acid salt cement；
Silicon ash in the present embodiment selects the silicon ash that the Sheng building materials Co., Ltd of commercially available Tianjin ancient cooking vessel produces.
Flyash in the present embodiment selects the flyash of commercially available Hancheng Datang Sheng Long Scientific and Technical Industry Co., Ltd production.
The slag for the woods building materials Co., Ltd production that slag in the present embodiment selects commercially available Shaanxi vertical, specific surface area is equal
Value is 410m2/kg；
River sand in the present embodiment is the korneforos Ba sand, fineness modulus 2.8, clay content 0.3%, and apparent density is
2.61g/cm3, bulk density 1.44g/cm3；
Rubble in the present embodiment is the Jingyang mountain rubble continuous grading that grain size is 5~20mm, and Jingyang mountain rubble is apparent close
Degree is 2.7g/cm3, bulk density 1.45g/cm3；
Water in the present embodiment is ordinary tap water；
Basalt fibre in the present embodiment selects the profound of commercially available Sichuan Aerospace Tuoxin Basalt Industrial Co., Ltd.'s production
Military rock fiber, 15 μm, length 18mm, density 2.56g/cm of filament diameter3；
Polypropylene fibre in the present embodiment selects poly- the third of commercially available Jiangsu Subotexin Material Co., Ltd's production
Alkene fiber, 30 μm, length 19mm, density 0.91g/cm of diameter3。
The preparation method of the regular tenacity high durability concrete of the present embodiment includes the following steps：
A load weighted river sand and rubble) are put into blender, stirring timing 0.5min；
B load weighted silicon ash, flyash, slag) are put into blender, stirring timing 2min；
C) load weighted polypropylene fibre is broken up to and is slowly put into blender, stirring timing 3min；
D) load weighted basalt fibre is broken up to and is slowly put into blender, stirring timing 2min；
E it) will weigh good and the water-reducing agent of water mixing added to put into blender, stirring timing 2min；
F) by the concrete mix input mold of gained mixing in step E, the equipment vibration compacting that vibrates is used；
G form removal after) being stored at room temperature for 24 hours, trip temperature of going forward side by side is 20 ± 2 DEG C, standardization of the relative humidity more than 95% conserves,
Curing time is to 28d.
Embodiment 2：
The present embodiment provides a kind of regular tenacity high durability concrete, under per unit volume in terms of parts by weight, by with
Lower raw material is made：Water-reducing agent is 10 parts, and cement is 610 parts, and silicon ash is 40 parts, and flyash is 200 parts, and slag is 150 parts, river sand
1726 parts, rubble is 2938 parts, 380 parts of water, 6.46 parts of basalt fibre, and polypropylene fibre is 0.58 part.
Each component specification is the same as embodiment 1 in the present embodiment.
The preparation method of the regular tenacity high durability concrete of the present embodiment is substantially the same manner as Example 1.
Embodiment 3：
The present embodiment provides a kind of regular tenacity high durability concrete, under per unit volume in terms of parts by weight, by with
Lower raw material is made：Water-reducing agent is 10 parts, and cement is 690 parts, and silicon ash is 60 parts, and flyash is 100 parts, and slag is 150 parts, river sand
1603 parts, rubble is 2125 parts, 290 parts of water, 2.65 parts of basalt fibre, and polypropylene fibre is 0.48 part.
Each component specification is the same as embodiment 1 in the present embodiment.
The preparation method of the regular tenacity high durability concrete of the present embodiment is substantially the same manner as Example 1.
Performance test is tested
(1) experiment proportioning：
In performance test, it is contemplated that the performance difference of different strength concrete is apparent, and incorporation engineering is actually needed,
Selection is to tri- kinds of strength grade concrete of C30, C40, C50 according to table 1 and 2 matching design of table, seven factor, three horizontal quadrature to having a competition
It tests, the experiment is 18 groups total.Indeed according to the corresponding three kinds of different same glues of tri- kinds of strength concretes of C30, C40, C50
Than 54 groups of experiments of design and progress, every cubic metre of material utilization amount of three kinds of intensity are shown in Table 3~table 5 altogether.
1 regular tenacity high durability concrete contrast test of table investigates factor and level
Note：Each admixture volume is the percentage for accounting for binder total amount；Fibers content is the volume fraction of product concrete；
Unlisted water-reducing agent dosage is customization in table, as the 1% of binder total amount, sand using amount according to《Normal concrete coordinates
Compare design discipline》(JGJ55-2011) it is acquired using volumetric method.
2 experimental group factor of table and horizontally selected table
3 every cubic metre of material utilization amount of C30 concrete (kg) of table
4 every cubic metre of material utilization amount of C40 concrete (kg) of table
5 every cubic metre of material utilization amount of C50 concrete (kg) of table
It can be seen that the corresponding experimental group of actually experimental group 1 to 3 according to the selection of factor level in Tables 1 and 2
Middle concrete each group distribution ratio is the proportioning of concrete each component in the embodiment of the present invention 1 to 3.In each experimental group ratio in table
Configure concrete each component ratio.
(2) experiment concrete configuration step：With embodiment 1.
(3) testing procedure of concrete charge pass, compression strength and the slump, testing standard and test result：
Electric flux testing procedure and testing standard use《Standard for test methods of longterm performance and durability of ordinary concrete mark
It is accurate》Regulation in (GB/T 50082-2009) carries out；Intensity test step and testing standard use《Normal concrete power
Learn method for testing performance standard》Regulation in (GB 50081-2002) carries out；Slump testing procedure and testing standard use
《Standard for test methods of properties of ordinary concrete mixture standard》Regulation in (GB/T 50080-2002) carries out.
The performance test results are as shown in table 6：
The orthogonal test test result of 6 high durability concrete of table
(4) Data Processing in Experiment：
This experiment the data obtained, it is each if quadrature analysis examines n index using quadrature analysis-efficiency coefficient method processing
The effect of a index coefficient be di(0≤di≤ 1), then total effect coefficient d is
In formula, efficiency coefficient diIndicate that the satisfaction that i-th of performance assessment criteria is realized, d indicate total quality of n index
Index uses di=1 indicates that the effect of i-th of index is best, makees normalized to the value of each index of same column accordingly, and count
Total efficiency coefficient is calculated, efficiency coefficient result of calculation is shown in Table 7 to table 9, and efficiency coefficient analysis result is shown in Table 10：
7 C30 concrete efficiency coefficient analytical tables of table
8 C40 concrete efficiency coefficient analytical tables of table
9 C50 concrete efficiency coefficient analytical tables of table
10 efficiency coefficient analysis result table of table
Analysis of experimental results：
It was found from the analysis result of table 6 and quadrature analysis-efficiency coefficient method：
(A) as shown in Table 10, for C30 concrete, influence of the basalt fibre volume to total efficiency coefficient is maximum, sand coarse aggregate ratio
Influence it is minimum；For C40 concrete, influence of the water-cement ratio to efficiency coefficient is maximum, and the influence of fine slag contents is minimum；And for
C50 concrete, water-cement ratio and sand coarse aggregate ratio are the minimum and maximum factor for influencing total efficiency coefficient respectively.
(B) the high durability concrete cooperation determined according to efficiency coefficient method when determines the examinations such as the electric flux of match ratio
Index is as shown in table 11 and attached drawing 1 to 3.
11 high durability concrete match ratio (efficiency coefficient method) of table
It is found that the concrete ratio determined using efficiency coefficient method shown in table 3 to table 5, table 11 and attached drawing 1 to 3, as
Experimental group 1 to 3, while being also embodiment 1 to 3.Data shown in 1-3 with reference to the accompanying drawings, it can be seen that given according to embodiment 1 to 3
Going out concrete made from match ratio, not only compression strength meets expected intensity requirement, and workability is preferable, and resisting chloride ion penetration oozes
Permeability belongs to low-down range (electric flux 300C~800C), the resisting chloride ion penetration of determining regular tenacity high durability concrete
Penetrating power is very strong, the infrastructure construction that can be preferably applied under marine environment.
It should be noted that the raw materials used specification in above-described embodiment and orthogonal test group is as follows：
Cement：The P.O 42.5R Portland cements of Qinling Mountains in Shaanxi cement limited liability company production.
The chemical composition (%) of 12 cement of table
The physical property of 13 cement of table
Silicon ash：The Sheng building materials Co., Ltd of Tianjin ancient cooking vessel.
The chemical composition (%) of 14 silicon ash of table
The physical property of 15 silicon ash of table
Flyash：Hancheng Datang Sheng Long Scientific and Technical Industry Co., Ltd.
The chemical composition (%) of 16 flyash of table
The physical property of 17 flyash of table
Slag：The vertical woods building materials Co., Ltd in Shaanxi.
The chemical composition (%) of 18 slag of table
The physical property of 19 slag of table
Basalt fibre：Sichuan Aerospace Tuoxin Basalt Industrial Co., Ltd..
The physical and mechanical property of 20 basalt fibre of table
Polypropylene fibre：Jiangsu Subotexin Material Co., Ltd.
The physical and mechanical property of 21 polypropylene fibre of table
Coarse aggregate：The Jingyang mountain rubble of 5~20mm grain sizes, apparent density 2.7g/cm3, bulk density 1.45g/cm3。
Fine aggregate：The korneforos Ba sand, fineness modulus 2.8, clay content 0.3%, apparent density 2.61g/cm3, accumulation
Density is 1.44g/cm3。
Water-reducing agent：The high performance water reducing agent of polyocarboxy acid of Jiangsu Subotexin Material Co., Ltd's production, solid content are
40%, water-reducing rate 30%, alkali content 6.5%, chloride ion content 0.18%.
Water：The drinkable tap water in Xi'an.
Claims (8)
1. a kind of regular tenacity high durability concrete, which is characterized in that the regular tenacity high durability concrete is by following original
Material is made：Water-reducing agent, cement, silicon ash, flyash, slag, river sand, rubble, water, basalt fibre and polypropylene fibre.
2. regular tenacity high durability concrete as described in claim 1, which is characterized in that with parts by weight under per unit volume
Number meter, is made of following raw material：Water-reducing agent be 10 parts, cement be 600~700 parts, silicon ash be 20~80 parts, flyash be 50~
250 parts, slag is 50~200 parts, 1500~2000 parts of river sand, and rubble is 2000~3200 parts, 250~450 parts of water, basalt
2.5~7.0 parts of fiber, polypropylene fibre are 0.1~1.5 part.
3. regular tenacity high durability concrete as claimed in claim 2, which is characterized in that with parts by weight under per unit volume
Number meter, is made of following raw material：Water-reducing agent is 10 parts, and cement is 610~690 parts, and silicon ash is 35~65 parts, flyash 100
~200 parts, slag is 100~150 parts, and 1600~1900 parts of river sand, rubble is 2100~3200 parts, and 290~440 parts of water is profound
2.5~6.5 parts of military rock fiber, polypropylene fibre are 0.4~1.3 part.
4. regular tenacity high durability concrete as claimed in claim 3, which is characterized in that with parts by weight under per unit volume
Number meter, is made of following raw material：Water-reducing agent is 10 parts, and cement is 640 parts, and silicon ash is 60 parts, and flyash is 200 parts, and slag is
100 parts, 1866 parts of river sand, rubble is 3177 parts, 440 parts of water, 3.5 parts of basalt fibre, and polypropylene fibre is 1.26 parts.
5. regular tenacity high durability concrete as claimed in claim 3, which is characterized in that with parts by weight under per unit volume
Number meter, is made of following raw material：Water-reducing agent is 10 parts, and cement is 610 parts, and silicon ash is 40 parts, and flyash is 200 parts, and slag is
150 parts, 1726 parts of river sand, rubble is 2938 parts, 380 parts of water, 6.46 parts of basalt fibre, and polypropylene fibre is 0.58 part.
6. regular tenacity high durability concrete as claimed in claim 3, which is characterized in that with parts by weight under per unit volume
Number meter, is made of following raw material：Water-reducing agent is 10 parts, and cement is 690 parts, and silicon ash is 60 parts, and flyash is 100 parts, and slag is
150 parts, 1603 parts of river sand, rubble is 2125 parts, 290 parts of water, 2.65 parts of basalt fibre, and polypropylene fibre is 0.48 part.
7. the regular tenacity high durability concrete as described in claim 1 to 6 any claim, which is characterized in that
The water-reducing agent is to remove to include naphthalene in polycarboxylate water-reducer, aliphatic water reducing agent, amino water-reducing agent and naphthalene water reducer
One or more compounded combinations outside the compounded combination of based water reducer and polycarboxylate water-reducer；
The cement is Portland cement；
The specific surface area mean value of the slag is 410m2/kg；
The river sand fineness modulus is 2.8, clay content 0.3%, apparent density 2.61g/cm3, bulk density 1.44g/
cm3；
The rubble is the rubble continuous grading that grain size is 5~20mm, and the rubble apparent density is 2.7g/cm3, accumulation
Density is 1.45g/cm3；
15 μm, length 18mm, density 2.56g/cm of the basalt fibre filament diameter3；
30 μm, length 19mm, density 0.91g/cm of the polypropylene fibre diameter3。
8. a kind of preparation method of regular tenacity high durability concrete, which is characterized in that the preparation method is used as right is wanted
The formula of the regular tenacity high durability concrete described in 1 to 6 any claim is sought, this approach includes the following steps：
A load weighted river sand and rubble) are put into blender, stirring timing 0.5min；
B load weighted silicon ash, flyash, slag) are put into blender, stirring timing 2min；
C) load weighted polypropylene fibre is broken up to and is slowly put into blender, stirring timing 3min；
D) load weighted basalt fibre is broken up to and is slowly put into blender, stirring timing 2min；
E it) will weigh good and the water-reducing agent of water mixing added to put into blender, stirring timing 2min；
F) by the concrete mix input mold of gained mixing in step E, the equipment vibration compacting that vibrates is used；
G form removal after) being stored at room temperature for 24 hours, trip temperature of going forward side by side is 20 ± 2 DEG C, standardization of the relative humidity more than 95% conserves, maintenance
Time is to 28d.
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