CN110482941A - A kind of preparation method of high-impermeable concrete - Google Patents
A kind of preparation method of high-impermeable concrete Download PDFInfo
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- CN110482941A CN110482941A CN201910642368.0A CN201910642368A CN110482941A CN 110482941 A CN110482941 A CN 110482941A CN 201910642368 A CN201910642368 A CN 201910642368A CN 110482941 A CN110482941 A CN 110482941A
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- coarse aggregate
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
- C04B2111/763—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
- 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
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A kind of preparation method of high-impermeable concrete, belongs to concrete preparation field.Raw material preparation: 950~1100 parts of cement are weighed, 1500~2500 parts of water, 1000~1500 parts of 450~800 fine aggregate of coarse sand, metakaolin 300~600, coarse aggregate 1500~2000,800~1000 parts of flyash, 80~100 parts of retardation water reducing agent, 400~500 parts of reinforcing agent, nano boron carbide-silicon carbide whisker powder 300~500, ferromagnetic powder 90~110；The preparation method of high-impermeable concrete of the present invention, preparation method is simple, and made concrete impervious waterproof performance is efficient, lasting, and will not be to the reinforcing bars rusting inside concrete structure, and anti-aging property is good.
Description
Technical field
The present invention relates to technical field of concrete preparation, are specifically exactly a kind of preparation method of high-impermeable concrete.
Background technique
Concrete is that purposes is most wide in civil engineering, a kind of maximum construction material of dosage.Normal concrete refers to water
Mud is cementitious material, and sand and stone are aggregate, is added water and stirred, pouring molding, condensation cure are at " the people with some strength
Work stone material ", i.e. cement concrete are the concrete species that maximum uses in current engineering.But common concrete material due to
The characteristics of self structure, in use, especially to often will appear leakage in those undergrounds and oedema Structural Engineering
The phenomenon that, this seriously constrains the application of concrete material.Therefore, impervious concrete is developed.Water-tight concrete is by mentioning
The compactness of high concrete improves pore structure, to reduce infiltration lane, improves impervious.Draw the common approach is that mixing
Gas type additive makes inside concrete generate disconnected bubble, and capillary channel is truncated, and changes pore structure, to improve
The impermeability of concrete.In addition, reducing the ratio of mud, the cement of appropriate kind and strength grade is selected, guarantees construction quality, especially
Be pay attention to vibration compacting, maintenance sufficiently etc., all to improve anti-permeability performance play an important role.
But existing impermeability concrete one side manufacture craft requires height, and another aspect water proof anti-seepage ability is limited, no
Can persistently, it but will be to the reinforcing bars rusting inside concrete structure, it is therefore desirable to develop new and effective water-tight concrete.
Summary of the invention
In order to overcome the above-mentioned problems of the prior art, the present invention provides a kind of preparation method of high-impermeable concrete.
The technical scheme adopted by the invention to solve the technical problem is that: a kind of preparation method of high-impermeable concrete, packet
Include following steps:
(1) raw material preparation: weighing 950~1100 parts of cement, and 1500~2500 parts of water, 450~800 fine aggregate 1000 of coarse sand~
1500 parts, metakaolin 300~600, coarse aggregate 1500~2000,800~1000 parts of flyash, retardation water reducing agent 80~100
Part, 400~500 parts of reinforcing agent, nano boron carbide-silicon carbide whisker powder 300~500, ferromagnetic powder 90~110；
(2) coarse aggregate pre-processes: 1500~2500 parts of water is splashed in step (1) in weighed coarse aggregate, uniform dry mixing,
Guarantee coarse aggregate surface wettability；
(3) prepared by mortar: the cement that will prepare in step (1), fine aggregate, flyash, water-reducing agent, and reinforcing agent dry mixing mixes, so
After remaining water is added, stir evenly；
(4) mortar is mixed with pretreated coarse aggregate: the sand that will be prepared in pretreated coarse aggregate in step (2) and step (3)
It is stirred evenly under slurry certain condition；
(5) concrete prefabricated, it pours: by the mixture conveying grinding tool prepared in step (4), 15~20 is conserved under certain condition
It, as prepared heat resistance modified concrete.
As optimization, the fine aggregate is the river sand of fineness modulus 2.4.
As optimization, the water-reducing agent is the BBP(Butyl Benzyl Phthalate that mass ratio is 3~5:1~3 and polycarboxylic acids mixing
Object.
As optimization, in the step (5), the curing condition is that humidity keeps 60% or more, and temperature keeps 55~65
DEG C continue 4 days, subsequent humidity is constant, and temperature is increased to 100~150 DEG C and continues 10~15 days.
As optimization, the ferromagnetic powder is Nd-Fe-B based magnet powder.
As optimization, in the step (1), the cement is 43 grades of portland cement.
As optimization, the coarse aggregate is 5~20nm of average grain diameter, 2500~3000kg/m3 of apparent density, bulk density
The slag stone of 1500~2000kg/m3.
The beneficial effects of the present invention are: compared with prior art, a kind of preparation side of high-impermeable concrete of the invention
Method, preparation method of the present invention have first put into admixture, and water, fine aggregate and additive can promote them adequately to stir
It is even, it is to be mixed uniformly after, investment coarse aggregate when using mix again the pulvis in concrete is again stirring for, can
Ensure that concrete can adequately stir evenly the present invention and use unique new formula, effectively realizes high performance concrete
With the harmony of natural environment, mitigate the load to earth environment system, realize can be recycled for non-renewable resources, saves
Save " zero-emission " of the energy and harmful substance.Nano silica, ferromagnetic powder, glass bead, graphene powder it is mixed
It closes and stirring is added, improve the mobility and cohesiveness of concrete, high-strength copper based alloy matrix powder and nano boron carbide-
The addition of silicon carbide whisker powder improves the density and rigid of concrete, effectively realizes the high-performance of concrete
Feature, the preparation method of high-impermeable concrete of the present invention, preparation method is simple, and made concrete impervious waterproof performance is high
It imitates, persistently, and will not be to the reinforcing bars rusting inside concrete structure, anti-aging property is good.
Specific embodiment
Embodiment 1
(1) 1000 parts of portland cement of 42.5 grades raw material preparation: are weighed；5000 parts of water；The river sand fine aggregate of fineness modulus 2.6
1500 parts；5~20nm of average grain diameter, 2500~3000kg/m3 of apparent density, the slag of 1500~2000kg/m3 of bulk density
2000 parts of stone coarse aggregate；II grades 1000 parts of flyash；Mass ratio is that the BBP(Butyl Benzyl Phthalate of 5:3 and polycarboxylic acids mixture subtract
100 parts of aqua；Mass ratio is the mixture of the nano silica fume of 5:7:3:5, dipotassium hydrogen phosphate, magnesia and waste tire rubber material
600 parts of reinforcing agent, wherein the average grain diameter of nano silica fume is 100~150nm, and waste tire rubber material average particle size is 30 μm,
It is spare；
(2) coarse aggregate pre-processes: 3000 parts of water being splashed in step (1) in weighed coarse aggregate, uniform dry mixing guarantees thick
Surface of aggregate is wet；
(3) prepared by mortar: the cement that will prepare in step (1), fine aggregate, flyash, water-reducing agent, and reinforcing agent dry mixing mixes, so
After remaining water is added, stir evenly；
(4) mortar is mixed with pretreated coarse aggregate: the sand that will be prepared in pretreated coarse aggregate in step (2) and step (3)
Slurry 50~80 DEG C at, 1500r/min, under the conditions of stir 90min, stir evenly；
(5) concrete prefabricated, pour: by the mixture conveying grinding tool prepared in step (4), humidity keeps 75% or more, temperature
It is kept for 70 DEG C and continues 5 days, subsequent humidity is constant, and temperature is increased to 150 DEG C and continues 10~15 days, and as prepared is heat resistance modified
Concrete.
Embodiment 2
(1) 800 parts of portland cement of 42.5 grades raw material preparation: are weighed；3000 parts of water；The river sand fine aggregate of fineness modulus 2.6
1000 parts；5~20nm of average grain diameter, 2500~3000kg/m3 of apparent density, the slag of 1500~2000kg/m3 of bulk density
1500 parts of stone coarse aggregate；II grades 800 parts of flyash；Mass ratio is that the BBP(Butyl Benzyl Phthalate of 3:1 and polycarboxylic acids mixture subtract
80 parts of aqua；Mass ratio is the mixture of the nano silica fume of 2:3:1:2, dipotassium hydrogen phosphate, magnesia and waste tire rubber material
400 parts of reinforcing agent, wherein the average grain diameter of nano silica fume is 100~150nm, and waste tire rubber material average particle size is 30 μm,
It is spare；
(2) coarse aggregate pre-processes: 1500 parts of water being splashed in step (1) in weighed coarse aggregate, uniform dry mixing guarantees thick
Surface of aggregate is wet；
(3) prepared by mortar: the cement that will prepare in step (1), fine aggregate, flyash, water-reducing agent, and reinforcing agent dry mixing mixes, so
After remaining water is added, stir evenly；
(4) mortar is mixed with pretreated coarse aggregate: the sand that will be prepared in pretreated coarse aggregate in step (2) and step (3)
Slurry 50 DEG C at, 1000r/min, under the conditions of stir 90min, stir evenly；
(5) concrete prefabricated, pour: by the mixture conveying grinding tool prepared in step (4), humidity keeps 75% or more, temperature
It is kept for 60 DEG C and continues 5 days, subsequent humidity is constant, and temperature is increased to 100 DEG C and continues 10~15 days, and as prepared is heat resistance modified
Concrete.
Heat resistance modified 50~60MPa of concrete crushing strength, the tensile strength 3.0~5.0MPa of above method preparation, it is resistance to
By 600~800 DEG C of temperature.
A kind of preparation method of high-impermeable concrete of the invention, preparation method of the present invention have first put into admixture, water, thin
Aggregate and additive can promote them adequately to stir evenly, it is to be mixed uniformly after, put into coarse aggregate, utilize mix again
When, the pulvis in concrete is again stirring for, it can be ensured that concrete can adequately stir evenly the present invention using only
Special new formula, effectively realizes the harmony of high performance concrete and natural environment, and earth environment system is born in mitigation
Lotus realizes can be recycled for non-renewable resources, saves " zero-emission " of the energy and harmful substance.Nano silica,
Stirring is added in the mixing of ferromagnetic powder, glass bead, graphene powder, improves the mobility and cohesiveness of concrete, high-strength
Degree copper base matrix powder and the addition of nano boron carbide-silicon carbide whisker powder improve the density and rigidity of concrete
Intensity effectively realizes the performance characteristics of concrete, and the preparation method of high-impermeable concrete of the present invention, preparation method is simple,
Made concrete impervious waterproof performance is efficient, lasting, and will not be anti-ageing to the reinforcing bars rusting inside concrete structure
Change excellent performance.
Above-mentioned specific embodiment is only specific case of the invention, and scope of patent protection of the invention includes but is not limited to
The product form and style of above-mentioned specific embodiment, a kind of any high-impermeable concrete for meeting claims of the present invention
The appropriate changes or modifications that preparation method and any person of an ordinary skill in the technical field do it, should all fall into this hair
Bright scope of patent protection.
Claims (7)
1. a kind of preparation method of high-impermeable concrete, characterized by the following steps:
(1) raw material preparation: weighing 950~1100 parts of cement, and 1500~2500 parts of water, 450~800 fine aggregate 1000 of coarse sand~
1500 parts, metakaolin 300~600, coarse aggregate 1500~2000,800~1000 parts of flyash, retardation water reducing agent 80~100
Part, 400~500 parts of reinforcing agent, nano boron carbide-silicon carbide whisker powder 300~500, ferromagnetic powder 90~110；
(2) coarse aggregate pre-processes: 1500~2500 parts of water is splashed in step (1) in weighed coarse aggregate, uniform dry mixing,
Guarantee coarse aggregate surface wettability；
(3) prepared by mortar: the cement that will prepare in step (1), fine aggregate, flyash, water-reducing agent, and reinforcing agent dry mixing mixes, so
After remaining water is added, stir evenly；
(4) mortar is mixed with pretreated coarse aggregate: the sand that will be prepared in pretreated coarse aggregate in step (2) and step (3)
It is stirred evenly under slurry certain condition；
(5) concrete prefabricated, it pours: by the mixture conveying grinding tool prepared in step (4), 15~20 is conserved under certain condition
It, as prepared heat resistance modified concrete.
2. a kind of preparation method of high-impermeable concrete according to claim 1, it is characterised in that: the fine aggregate is thin
Spend the river sand of modulus 2.4.
3. a kind of preparation method of high-impermeable concrete according to claim 1, it is characterised in that: the water-reducing agent is matter
Amount is than the BBP(Butyl Benzyl Phthalate and polycarboxylic acids mixture for 3~5:1~3.
4. a kind of preparation method of high-impermeable concrete according to claim 1, it is characterised in that: in the step (5),
The curing condition is that humidity keeps 60% or more, and temperature is kept for 55~65 DEG C and continues 4 days, and subsequent humidity is constant, and temperature increases
Continue 10~15 days to 100~150 DEG C.
5. a kind of preparation method of high-impermeable concrete according to claim 1, it is characterised in that: the ferromagnetic powder
For Nd-Fe-B based magnet powder.
6. a kind of preparation method of high-impermeable concrete according to claim 1, it is characterised in that: in the step (1),
The portland cement that the cement is 43 grades.
7. a kind of preparation method of high-impermeable concrete according to claim 1, it is characterised in that: the coarse aggregate is flat
The slag stone of equal partial size 5~20nm, 2500~3000kg/m3 of apparent density, 1500~2000kg/m3 of bulk density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910642368.0A CN110482941A (en) | 2019-07-16 | 2019-07-16 | A kind of preparation method of high-impermeable concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910642368.0A CN110482941A (en) | 2019-07-16 | 2019-07-16 | A kind of preparation method of high-impermeable concrete |
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| CN110482941A true CN110482941A (en) | 2019-11-22 |
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| CN201910642368.0A Pending CN110482941A (en) | 2019-07-16 | 2019-07-16 | A kind of preparation method of high-impermeable concrete |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111635170A (en) * | 2020-05-25 | 2020-09-08 | 惠州市海鸿水泥制品有限公司 | Concrete |
| CN111908827A (en) * | 2020-08-21 | 2020-11-10 | 重庆富皇建筑工业化制品有限公司 | All-machine-made sand wet-mixed mortar additive and processing method thereof |
| CN113213823A (en) * | 2021-04-26 | 2021-08-06 | 哈尔滨工业大学 | Magnetic cement mortar damage detection sensor and manufacturing method and application thereof |
| CN115321919A (en) * | 2022-09-01 | 2022-11-11 | 河南金诺混凝土有限公司 | High-performance machine-made sand concrete and preparation method thereof |
-
2019
- 2019-07-16 CN CN201910642368.0A patent/CN110482941A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111635170A (en) * | 2020-05-25 | 2020-09-08 | 惠州市海鸿水泥制品有限公司 | Concrete |
| CN111908827A (en) * | 2020-08-21 | 2020-11-10 | 重庆富皇建筑工业化制品有限公司 | All-machine-made sand wet-mixed mortar additive and processing method thereof |
| CN113213823A (en) * | 2021-04-26 | 2021-08-06 | 哈尔滨工业大学 | Magnetic cement mortar damage detection sensor and manufacturing method and application thereof |
| CN115321919A (en) * | 2022-09-01 | 2022-11-11 | 河南金诺混凝土有限公司 | High-performance machine-made sand concrete and preparation method thereof |
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Application publication date: 20191122 |
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