CN109896791A - Self-compacting concrete and preparation method thereof - Google Patents
Self-compacting concrete and preparation method thereof Download PDFInfo
- Publication number
- CN109896791A CN109896791A CN201910202425.3A CN201910202425A CN109896791A CN 109896791 A CN109896791 A CN 109896791A CN 201910202425 A CN201910202425 A CN 201910202425A CN 109896791 A CN109896791 A CN 109896791A
- Authority
- CN
- China
- Prior art keywords
- self
- parts
- concrete
- compacting concrete
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of self-compacting concretes, solves concrete field, its key points of the technical solution are that mass fraction meter, including 55~75 parts of cement, 18~24 parts of flyash, 124~134 parts of sand, 108~116 parts of rubble, 26~32 parts of miberal powder, 45~58 parts of conch meal, 4~8 parts of water-reducing agent, 5~9 parts of levelling agent, 9~15 parts of antifreeze, 3~9 parts of retarder, 5~9 parts of iodized salt, 60~80 parts of water.By using above-mentioned technical proposal, under the mating reaction of levelling agent and retarder, concrete can keep mobility in longer period of time, thus under the effect of gravity, the gap of inside concrete will be filled uniformly, to namely realize the effect of self-compaction.In addition, the main ingredient of conch meal is calcium carbonate, shaping efficiency is helped to improve during concrete curing, to be conducive to improve the compression strength of concrete.
Description
Technical field
The present invention relates to concrete field, in particular to a kind of self-compacting concrete and preparation method thereof.
Background technique
Self-compacting concrete, also known as flowing concrete, its most distinguishing feature are not have to vibrate and energy self-compaction.It is logical
Cross the selection of additive, cementitious material and coarse-fine aggregate and the design of match ratio, make concrete mix yield value reduce and
With enough plastic viscosities, coarse-fine aggregate can be suspended in cement slurry do not isolate, not bleeding, do not having to or do not having to substantially vibration
Under the condition of molding smash, it can be sufficient filling with template and reinforcing bar gap, form closely knit, uniform concrete structure.It is a kind of high
Performance concrete is widely portable to the various concrete and reinforced concrete structures of architectural engineering.Its most important property is mixed
Solidifying soil has high fluidity, high separating resistance, high clearance through and high fillibility.
However, the existing universal tensile strength of self-compacting concrete is low, brittleness is big, easy to crack, poor toughness, to reduce mixed
The bearing capacity of Xtah Crude Clay structure, and then service life is shortened, and also buried the hidden danger of various disaster accidents.Especially its
Compressive property is poor, is easy to brittle fracture under Impact Load and falls off.
Summary of the invention
The object of the present invention is to provide a kind of self-compacting concretes to have with stronger tension and shock proof intensity
The bearing capacity of concrete structure is improved to effect, and preparation method is relatively simple, is appropriate for large-scale production.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of self-compacting concrete, presses
Mass fraction meter, including 55~75 parts of cement, 18~24 parts of flyash, 124~134 parts of sand, 108~116 parts of rubble, miberal powder
26~32 parts, 45~58 parts of conch meal, 4~8 parts of water-reducing agent, 5~9 parts of levelling agent, 9~15 parts of antifreeze, retarder 3~9
Part, 5~9 parts of iodized salt, 60~80 parts of water.
By using above-mentioned technical proposal, under the mating reaction of levelling agent and retarder, concrete can be longer by one
Mobility is kept in the section time, so that under the effect of gravity, the gap of inside concrete will be filled uniformly, thus
Namely realize the effect of self-compaction.In addition, the main ingredient of conch meal is calcium carbonate, during concrete curing
Shaping efficiency is helped to improve, to be conducive to improve the compression strength of concrete.
Preferably, the conch meal is by passing through the mixed enzyme solution containing alkali protease, papain and trypsase
Treated, and grinding shells form.
By using above-mentioned technical proposal, by will appear a kind of chitin in above-mentioned enzyme solution treated conch meal, no
Only there is stronger viscosity, can be improved the integrated bond degree of concrete material, meanwhile, chitin or good bacteriostatic agent,
It can reduce fungi in the breeding of concrete surface, to can also effectively improve concrete after concrete curing
Service life.
Preferably, the granularity of the conch meal is less than 5 μm.
By using above-mentioned technical proposal, such conch meal can be evenly dispersed into concrete, to effectively protect
The homogenieity of concrete is demonstrate,proved.
Preferably, the water-reducing agent be SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent (Hubei Ai Jin Chemical Co., Ltd.) and
The mixture of odium stearate, the mass ratio of the two are 1: 1.2.
By by using above-mentioned technical proposal, one side SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent and odium stearate energy
Enough effective dosages for reducing water, secondly, odium stearate has a fatty acid radical, fatty acid radical ion can in conch meal
Ca2+、 CaHCO3 +、CaOH+Plasma reaction generates fatty acid calcium sediment, is coated on conch meal particle surface, also, fat
Alkyl in sour calcium makes conch meal surface nature become oleophylic by hydrophilic, and concrete curing can reduce later is rushed by water in this way
The probability of brush.Meanwhile the caking property for being formed by partial fatty acid calcium is also relatively strong, to be located at the conch meal energy of concrete surface
One of film is enough formed, plays the role of barrier protection for concrete, is directly directly contacted in external substance to reduce concrete
And the probability being corroded.
Preferably, the levelling agent is the mixture of ethylene bis-fatty acid amides and acrylate, and the mass ratio of the two is 1
∶ 0.8。
By using above-mentioned technical proposal, the one kind of ethylene bis-fatty acid amides as levelling agent is selected, it can also be with
The polar group of inorganic material surface part combines to form polar group structure, and similar anchoring node, also just improves in this way
Bond state between inorganic material, to help to enhance the mechanical strength after the solidification of concrete.
Preferably, the antifreezing agent is the mixture of DC-3 polycarboxylic acids antifreezing agent and ethylene glycol, and the mass ratio of the two is 1:
1.6。
By using above-mentioned technical proposal, the compound antifreezer of DC-3 polycarboxylic acids antifreezing agent and ethylene glycol mixing, Neng Gouyou
Effect ground reduces shrinking percentage of the concrete in low temperature environment, to also just can be improved the antifreeze ability of concrete.
Preferably, the retarder is the mixture of dextrin and disodium ethylene diamine tetraacetate, and the mass ratio of the two is 2: 1.
By using above-mentioned technical proposal, since there are Ca in cement2+、Mg2+Ion, thus ion hydration ability is small,
The moisture film that particle surface is formed is relatively thin, attracts one another that power is larger, thus cement at the time of molding needed for power it is also larger.And ethylenediamine tetraacetic
Na in acetic acid disodium+The Ca that can be swapped out in concrete2+、Mg2+Ion, with Ca2+、Mg2+Ion is just on the contrary, to water
The plasticity influence of mud is smaller, to be conducive to improve the molding effect of cement.
Preferably, the iodized salt is one or both of lithium iodide or cuprous iodide.
By using above-mentioned technical proposal, iodized salt has stronger thermal stability, can effectively improve organic additive
Thermal stability.Especially lithium iodide, lithium ion can also have cooperation between the carbonyl in water-reducing agent and lubricant
Effect, produces the structure of similar network, hinders the movement of the strand and corresponding free radical of organic additive, thus makes organic
Auxiliary molecules chain need to overcome bigger energy barrier when being thermally decomposed than entirely free on his strand, to have higher thermal decomposition
Temperature also just further improves the structural strength of concrete in this way.
Preferably, the partial size of the rubble is 5~25mm.
The rubble of above-mentioned specification is selected, the structural strength of concrete is on the one hand helped to ensure that, on the other hand also contributes to
Preferably make its dispersion in the feed, so that the concrete quality obtained is more uniform.
A kind of preparation method of self-compacting concrete, includes the following steps:
Step 1: pressing definite quality, cement, flyash, sand, miberal powder, rubble and conch meal are added in blender, and is added
The water of 1/2 mass stirs evenly；
Step 2: it is to be mixed uniformly after, water-reducing agent, levelling agent, antifreeze, retarder and iodized salt are added into blender,
And remaining water is added and is stirred, uniformly rear blanking to be mixed obtains the self-compacting concrete of finished product.
By using above-mentioned technical proposal, first the big raw material of particle is first mixed, adds short grained original later
Material and auxiliary agent, to be conducive to improve the mixed effect of raw material.
In conclusion the invention has the following advantages:
1, the addition of conch meal, so that concrete formation better effect, so as to effectively improve the tension of concrete and resist
The performance of drawing；
2, enzyme solution processing is carried out to conch meal, the antimycotic performance of concrete can be effectively improved in this way, to also just improve
The durability of concrete；
3, the stearic acid of odium stearate is easy to form stearic acid precipitating with the calcium constituent in conch meal, in this way after concrete curing
It is easy to form one of protective film on surface, and its stronger cementability also contributes to improving the structural strength of concrete；
4, concrete whole preparation process is all relatively simple, and suitable scale is suitble to carry out.
Detailed description of the invention
Fig. 1 is a kind of preparation technology flow chart of self-compacting concrete of the application.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment one:
A kind of self-compacting concrete, includes the following steps:
Step 1: by 55Kg cement, 18Kg flyash, 124Kg sand, 26Kg miberal powder, 108Kg partial size be 5~25mm rubble and
45Kg conch meal is added in blender, and 30Kg water is added, and stirs 20min with 400rpm revolving speed, to guarantee to stir evenly；
Step 2: it is to be mixed uniformly after, into blender be added 4Kg water-reducing agent, 5Kg levelling agent, 9Kg antifreeze, 3Kg slow setting
Agent and 5Kg iodized salt, and 30Kg water is added, 30min is stirred with 600rpm revolving speed, uniformly blanking afterwards to be mixed obtains oneself of finished product
Air-free concrete.
Wherein, the preparation of conch meal: first preparing the sodium sulfite buffer solution that 50ml pH is 8.0, is made with 1ml Qula is logical
For surfactant, and using mass ratio be 1: 1: 1 alkali protease, papain and trypsase group synthase 5g
It is catalyzed；By sodium sulfite buffer solution, Qula is logical and group synthase three is mixed to get enzyme solution；Shell is soaked in enzyme solution,
Controlling constant temperature shaker temperature is 50 DEG C, is hydrolyzed 2 hours under conditions of revolving speed 300r/min；Later, by grinding shells at average grain
Spend the conch meal less than 5 μm.
In addition, water-reducing agent herein is the mixture of SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent and odium stearate, the two
Mass ratio is 1: 1.2, and SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent is produced by Hubei Ai Jin Chemical Co., Ltd., and levelling agent is
The mixture of ethylene bis-fatty acid amides and acrylate, the mass ratio of the two are 1: 0.8, and antifreezing agent is that DC-3 polycarboxylic acids is antifreeze
The mixture of agent and ethylene glycol, the mass ratio of the two are 1: 1.6, and retarder is the mixing of dextrin and disodium ethylene diamine tetraacetate
Object, the mass ratio of the two are 2: 1, furthermore iodized salt is lithium iodide.
Embodiment two:
A kind of self-compacting concrete, includes the following steps:
Step 1: by 75Kg cement, 24Kg flyash, 134Kg sand, 32Kg miberal powder, 116Kg partial size be 5~25mm rubble and
58Kg conch meal is added in blender, and 40Kg water is added, and stirs 20min with 400rpm revolving speed, to guarantee to stir evenly；
Step 2: it is to be mixed uniformly after, it is slow that 8Kg water-reducing agent, 9Kg levelling agent, 15Kg antifreeze, 9Kg are added into blender
Solidifying agent and 9Kg iodized salt, and 40Kg water is added, 30min is stirred with 600rpm revolving speed, uniformly rear blanking to be mixed obtains finished product
Self-compacting concrete.
Wherein, the preparation of conch meal: first preparing the sodium sulfite buffer solution that 50ml pH is 8.0, is made with 1ml Qula is logical
For surfactant, and using mass ratio be 1: 1: 1 alkali protease, papain and trypsase group synthase 5g
It is catalyzed；By sodium sulfite buffer solution, Qula is logical and group synthase three is mixed to get enzyme solution；Shell is soaked in enzyme solution,
Controlling constant temperature shaker temperature is 50 DEG C, is hydrolyzed 2 hours under conditions of revolving speed 300r/min；Later, by grinding shells at average grain
Spend the conch meal less than 5 μm.
In addition, water-reducing agent herein is the mixture of SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent and odium stearate, the two
Mass ratio is 1: 1.2, and SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent is produced by Hubei Ai Jin Chemical Co., Ltd., and levelling agent is
The mixture of ethylene bis-fatty acid amides and acrylate, the mass ratio of the two are 1: 0.8, and antifreezing agent is that DC-3 polycarboxylic acids is antifreeze
The mixture of agent and ethylene glycol, the mass ratio of the two are 1: 1.6, and retarder is the mixing of dextrin and disodium ethylene diamine tetraacetate
Object, the mass ratio of the two are 2: 1, furthermore iodized salt is cuprous iodide.
Embodiment three:
A kind of self-compacting concrete, includes the following steps:
Step 1: by 65Kg cement, 21Kg flyash, 129Kg sand, 29Kg miberal powder, 112Kg partial size be 5~25mm rubble and
51Kg conch meal is added in blender, and 35Kg water is added, and stirs 20min with 400rpm revolving speed, to guarantee to stir evenly；
Step 2: it is to be mixed uniformly after, it is slow that 6Kg water-reducing agent, 7Kg levelling agent, 12Kg antifreeze, 6Kg are added into blender
Solidifying agent and 7Kg iodized salt, and 35Kg water is added, 30min is stirred with 600rpm revolving speed, uniformly rear blanking to be mixed obtains finished product
Self-compacting concrete.
Wherein, the preparation of conch meal: first preparing the sodium sulfite buffer solution that 50ml pH is 8.0, is made with 1ml Qula is logical
For surfactant, and using mass ratio be 1: 1: 1 alkali protease, papain and trypsase group synthase 5g
It is catalyzed；By sodium sulfite buffer solution, Qula is logical and group synthase three is mixed to get enzyme solution；Shell is soaked in enzyme solution,
Controlling constant temperature shaker temperature is 50 DEG C, is hydrolyzed 2 hours under conditions of revolving speed 300r/min；Later, by grinding shells at average grain
Spend the conch meal less than 5 μm.
In addition, water-reducing agent herein is the mixture of SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent and odium stearate, the two
Mass ratio is 1: 1.2, and SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent is produced by Hubei Ai Jin Chemical Co., Ltd., and levelling agent is
The mixture of ethylene bis-fatty acid amides and acrylate, the mass ratio of the two are 1: 0.8, and antifreezing agent is that DC-3 polycarboxylic acids is antifreeze
The mixture of agent and ethylene glycol, the mass ratio of the two are 1: 1.6, and retarder is the mixing of dextrin and disodium ethylene diamine tetraacetate
Object, the mass ratio of the two are 2: 1, furthermore iodized salt is lithium iodide and cuprous iodide, and the mass ratio of the two is 1: 1.
Example IV:
A kind of self-compacting concrete, includes the following steps:
Step 1: by 55Kg cement, 24Kg flyash, 129Kg sand, 32Kg miberal powder, 112Kg partial size be 5~25mm rubble and
45Kg conch meal is added in blender, and 35Kg water is added, and stirs 20min with 400rpm revolving speed, to guarantee to stir evenly；
Step 2: it is to be mixed uniformly after, it is slow that 4Kg water-reducing agent, 9Kg levelling agent, 12Kg antifreeze, 6Kg are added into blender
Solidifying agent and 9Kg iodized salt, and 35Kg water is added, 30min is stirred with 600rpm revolving speed, uniformly rear blanking to be mixed obtains finished product
Self-compacting concrete.
Wherein, the preparation of conch meal: first preparing the sodium sulfite buffer solution that 50ml pH is 8.0, is made with 1ml Qula is logical
For surfactant, and using mass ratio be 1: 1: 1 alkali protease, papain and trypsase group synthase 5g
It is catalyzed；By sodium sulfite buffer solution, Qula is logical and group synthase three is mixed to get enzyme solution；Shell is soaked in enzyme solution,
Controlling constant temperature shaker temperature is 50 DEG C, is hydrolyzed 2 hours under conditions of revolving speed 300r/min；Later, by grinding shells at average grain
Spend the conch meal less than 5 μm.
In addition, water-reducing agent herein is the mixture of SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent and odium stearate, the two
Mass ratio is 1: 1.2, and SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent is produced by Hubei Ai Jin Chemical Co., Ltd., and levelling agent is
The mixture of ethylene bis-fatty acid amides and acrylate, the mass ratio of the two are 1: 0.8, and antifreezing agent is that DC-3 polycarboxylic acids is antifreeze
The mixture of agent and ethylene glycol, the mass ratio of the two are 1: 1.6, and retarder is the mixing of dextrin and disodium ethylene diamine tetraacetate
Object, the mass ratio of the two are 2: 1, furthermore iodized salt is one or both of lithium iodide or cuprous iodide.
Embodiment five:
A kind of self-compacting concrete, includes the following steps:
Step 1: by 75Kg cement, 18Kg flyash, 134Kg sand, 26Kg miberal powder, 116Kg partial size be 5~25mm rubble and
52Kg conch meal is added in blender, and 40Kg water is added, and stirs 20min with 400rpm revolving speed, to guarantee to stir evenly；
Step 2: it is to be mixed uniformly after, it is slow that 6Kg water-reducing agent, 5Kg levelling agent, 15Kg antifreeze, 3Kg are added into blender
Solidifying agent and 7Kg iodized salt, and Kg water is added, 30min is stirred with 600rpm revolving speed, it is to be mixed uniformly after blanking, obtain finished product from
Air-free concrete.
Wherein, the preparation of conch meal: first preparing the sodium sulfite buffer solution that 50ml pH is 8.0, is made with 1ml Qula is logical
For surfactant, and alkali protease, papain and the pancreas egg for the use of mass ratio being 1: 1: 1 are made from the group synthase 5g of enzyme
Catalysis；By sodium sulfite buffer solution, Qula is logical and group synthase three is mixed to get enzyme solution；Shell is soaked in enzyme solution, is controlled
Constant temperature shaker temperature processed is 50 DEG C, is hydrolyzed 2 hours under conditions of revolving speed 300r/min；Later, by grinding shells at average particle size
Conch meal less than 5 μm.
In addition, water-reducing agent herein is the mixture of SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent and odium stearate, the two
Mass ratio is 1: 1.2, and SNF-A/PNS-A naphthalene series high-efficiency water-reducing agent is produced by Hubei Ai Jin Chemical Co., Ltd., and levelling agent is
The mixture of ethylene bis-fatty acid amides and acrylate, the mass ratio of the two are 1: 0.8, and antifreezing agent is that DC-3 polycarboxylic acids is antifreeze
The mixture of agent and ethylene glycol, the mass ratio of the two are 1: 1.6, and retarder is the mixing of dextrin and disodium ethylene diamine tetraacetate
Object, the mass ratio of the two are 2: 1, furthermore iodized salt is lithium iodide.
According to slump flow method of testing, V-type funnel testing method and L box test method(s) to self-compaction swelled mixture of the invention
Solidifying soil is tested, in addition, the antibiotic property for concrete is tested, main method is that 30cm* is made in concrete
The concrete block of 30cm*30cm is added dropwise 10 drop cell nutrient solutions in concrete block again later, is placed in normal temperature environment lower 7 days,
And the development quantity of bacterium colony is observed, to obtain the data of following table 1 and table 2:
Table 1 is the working performance table of self-compaction expansive concrete
Table 2 is the working performance table of self-compaction expansive concrete
As can be seen that self-compacting concrete of the invention has the following characteristics that from the data of above-mentioned Tables 1 and 2
1. it can be under the premise of meeting normal working performance, while can also guarantee adequately to compensate and shrink；
2. being easy to pour, construction quickly, advantageously reduces live manpower, raises labour productivity, work well, and reduces engineering cost
With；
3. pumping is good；
4. the concrete of the application also has good bacteriostasis property, be conducive to avoid the breeding of fungi to cause brokenly to concrete
It is bad.
In addition, in the operating procedure based on embodiment three, and combine the supplemental characteristic such as the following table 3, compare example one to
The operation of comparative example four, and the test experiments such as embodiment three are carried out, obtain the experimental result as shown in table 4 and table 5:
Table 3
Table 4 is the working performance table of self-compaction expansive concrete
Table 5 is the working performance table of self-compaction expansive concrete
From embodiment one to embodiment five and comparative example one into comparative example four as can be seen that the self-compacting concrete of the application
Good plasticity is all had, and has been also equipped with stronger compressive property and antagonistic property, thus is suitble to various fields.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of self-compacting concrete, it is characterised in that: according to the mass fraction, including
2. a kind of self-compacting concrete according to claim 1, it is characterised in that: the conch meal is by by containing alkalinity
Treated that grinding shells form from the mixed enzyme solution of enzyme and trypsase for protease, pawpaw egg.
3. a kind of self-compacting concrete according to claim 2, it is characterised in that: the granularity of the conch meal is less than 5 μm.
4. a kind of self-compacting concrete according to claim 1, it is characterised in that: the water-reducing agent is SNF-A/PNS-A
The mixture of naphthalene series high-efficiency water-reducing agent and odium stearate, the mass ratio of the two are 1: 1.2.
5. a kind of self-compacting concrete according to claim 1, it is characterised in that: the levelling agent is ethylene bis-fatty acid
The mixture of amide and acrylate, the mass ratio of the two are 1: 0.8.
6. a kind of self-compacting concrete according to claim 1, it is characterised in that: the antifreezing agent is anti-for DC-3 polycarboxylic acids
Freeze the mixture of agent and ethylene glycol, the mass ratio of the two is 1: 1.6.
7. a kind of self-compacting concrete according to claim 1, it is characterised in that: the retarder is dextrin and ethylenediamine
The mixture of tetraacethyl disodium, the mass ratio of the two are 2: 1.
8. a kind of self-compacting concrete according to claim 1, it is characterised in that: the iodized salt is lithium iodide or iodate
It is one or both of cuprous.
9. a kind of self-compacting concrete according to claim 1, it is characterised in that: the partial size of the rubble is 5~25mm.
10. a kind of preparation method of self-compacting concrete as described in any one of claim 1 to 9 claim, including
Following steps:
Step 1: pressing definite quality, cement, flyash, sand, miberal powder, rubble and conch meal are added in blender, and is added
The water of 1/2 mass stirs evenly；
Step 2: water-reducing agent, levelling agent, antifreeze, retarder and iodized salt are added into the blender of step 1, and it is added surplus
Under water be stirred, it is to be mixed uniformly after blanking, obtain the self-compacting concrete of finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202425.3A CN109896791A (en) | 2019-03-16 | 2019-03-16 | Self-compacting concrete and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202425.3A CN109896791A (en) | 2019-03-16 | 2019-03-16 | Self-compacting concrete and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109896791A true CN109896791A (en) | 2019-06-18 |
Family
ID=66952653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910202425.3A Withdrawn CN109896791A (en) | 2019-03-16 | 2019-03-16 | Self-compacting concrete and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109896791A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225514A (en) * | 2020-10-15 | 2021-01-15 | 山东晟阳新型建材有限公司 | Aerated concrete plate and manufacturing method thereof |
| CN113250462A (en) * | 2021-06-09 | 2021-08-13 | 中国电建集团四川工程有限公司 | Construction method of self-compacting concrete |
| CN116120011A (en) * | 2023-02-06 | 2023-05-16 | 中铁十五局集团有限公司 | Green high-performance concrete doped with nano titanium dioxide and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0838444A1 (en) * | 1996-10-27 | 1998-04-29 | Sika AG, vorm. Kaspar Winkler & Co. | Dispersing agent for high-flow or self-compacting concrete |
| CN109455999A (en) * | 2018-12-03 | 2019-03-12 | 嘉兴市康立德构件有限公司 | Self-compaction expansive concrete and preparation method thereof |
-
2019
- 2019-03-16 CN CN201910202425.3A patent/CN109896791A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0838444A1 (en) * | 1996-10-27 | 1998-04-29 | Sika AG, vorm. Kaspar Winkler & Co. | Dispersing agent for high-flow or self-compacting concrete |
| CN109455999A (en) * | 2018-12-03 | 2019-03-12 | 嘉兴市康立德构件有限公司 | Self-compaction expansive concrete and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 耿加会，余春荣，刘志杰主编: "《商品混凝土生产与应用技术》", 30 November 2015, 中国建材工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225514A (en) * | 2020-10-15 | 2021-01-15 | 山东晟阳新型建材有限公司 | Aerated concrete plate and manufacturing method thereof |
| CN113250462A (en) * | 2021-06-09 | 2021-08-13 | 中国电建集团四川工程有限公司 | Construction method of self-compacting concrete |
| CN116120011A (en) * | 2023-02-06 | 2023-05-16 | 中铁十五局集团有限公司 | Green high-performance concrete doped with nano titanium dioxide and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103121814B (en) | Lightweight concrete and preparation method and applications thereof | |
| CN101941828B (en) | Slurry curing agent | |
| CN102617076A (en) | Unsteamed concrete air-filled insulating brick produced from building waste, and production method thereof | |
| CN109896791A (en) | Self-compacting concrete and preparation method thereof | |
| CN103011896A (en) | Foam concrete | |
| CN101602567A (en) | Waste mud solidification processing method based on polypropylene acetamide | |
| CN109796160A (en) | Frost-resistant concrete and preparation method thereof | |
| CN108585592A (en) | A kind of Concrete synergist and preparation method thereof | |
| WO2024146145A1 (en) | Phosphogypsum hydraulic cementing material, and preparation method therefor and use thereof | |
| CN109455999A (en) | Self-compaction expansive concrete and preparation method thereof | |
| CN113754364B (en) | Artificial aggregate based on muck sand washing tail mud and preparation method thereof | |
| CN115710105A (en) | High-strength reinforced concrete and preparation method thereof | |
| CN110451854A (en) | A kind of light-weight water-proof concrete segment and preparation method thereof for river | |
| CN113698154A (en) | High-crack-resistance concrete for building and manufacturing method thereof | |
| CN110317006A (en) | A kind of architecture construction concrete and preparation method thereof | |
| CN114349405B (en) | Composition for preparing filling material, preparation method of filling material and method for filling mine | |
| CN106278025B (en) | A kind of strong concrete and preparation method thereof | |
| CN108358557A (en) | A kind of preparation method of the compound sisal fiber coral concrete of graphene | |
| CN108101433A (en) | A kind of high-strength native polywater cement mortar and preparation method thereof | |
| CN109081657B (en) | High-strength dredged soil curing agent | |
| CN102863175A (en) | Addition agent for recycled aggregate type ecological concrete | |
| CN108002778B (en) | Mold-free agent, application thereof, building component comprising mold-free agent and preparation method | |
| CN101412606B (en) | Concrete containing low-quality coarse aggregate and preparation thereof | |
| Zhao et al. | Experimental Study on Ratio and Performance of Coal Gangue/Bottom Ash Geopolymer Double-Liquid Grouting Material | |
| CN113443874A (en) | Nano calcium carbonate and polypropylene fiber synergistically enhanced recycled concrete and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190618 |
|
| WW01 | Invention patent application withdrawn after publication |