CN106630738A - High-intensity concrete admixture and preparation method and application thereof - Google Patents
High-intensity concrete admixture and preparation method and application thereof Download PDFInfo
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- CN106630738A CN106630738A CN201611116638.7A CN201611116638A CN106630738A CN 106630738 A CN106630738 A CN 106630738A CN 201611116638 A CN201611116638 A CN 201611116638A CN 106630738 A CN106630738 A CN 106630738A
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Abstract
The invention discloses a high-intensity concrete admixture. The high-intensity concrete admixture is prepared from the following raw materials in parts by weight: blast-furnace slag 200 parts, edible fungi residues 35-45 parts, gypsum 10-15 parts, gneiss 10-20 parts, shale 25-35 parts, activated carbon slag 30-40 parts, attapulgite 20-30 parts, pine and cypress ash 15-18 parts, polypropylene fibers 2-4 parts, corn stigma 0.2-0.5 part and an additive 1-3 parts. The additive consists of glutinous rice glue, starch octenylsuccinate, fish glue and glucomannan according to the weight ratio of 500: 20: 1-3: 5. The blast-furnace slag is ground granulated blast-furnace slag powder, and the Brinell specific surface area is 500-600 m(2)/kg. The high-intensity concrete admixture has the effects that the compressive property of the concrete is enhanced, the brittleness of the concrete is reduced, and the working preforamnce of the high-intensity concrete is improved.
Description
Technical field
The present invention relates to building material field.It is more particularly related to a kind of high strength concrete admixture and its
Preparation method and application.
Background technology
In high-strength concrete production is prepared, often cement consumption is higher, and the heat of hydration is larger, temperature stress and autogenous shrinkage
Carry out hidden danger to the crack band of high-strength concrete, result of study both domestic and external shows, mineral admixture can be effectively reduced high-strength mixed
The Factor of Brittleness of soil is coagulated, its crack resistance is improved, it is to alleviate this to ask that the mineral admixture used in high-strength concrete replaces cement
The effective means of topic.
A kind of waste residue of the phyllosilicate material discharged from blast furnace when blast-furnace cinder is manUfaCtUre of pig iron.Blast-furnace cinder be by
Stone-like pulse, ash, flux and other impurity compositions that can not be entered in the pig iron, be a kind of eutectic mixture.Blast-furnace cinder is
A kind of conventional concrete mineral admixture, due to its have the advantages that it is with low cost, it is many in the preparation of China's normal concrete
Frequently use.However, replacing ratio of the cement in concrete using blast-furnace cinder merely, its effect is barely satisfactory, and by
In modern ore dressing and the raising of ironmaking technology, the Blast Furnace Ore quantity of slag of pig iron output per ton has been greatly reduced.
There are some researches show, the mechanism of action of the different minerals additive in concrete is not quite similar, and mineral additive is being carried
While high concrete aspect performance, otherwise performance can be also affected.The research for having domestic and international correlation shows：Outside mineral
Plus mutually compound between agent can produce that synergistic effect or super-additive effect, i.e. variety classes mineral additive are compound can be played each
Advantage reaching mutual supplement with each other's advantages effect.Therefore, on the basis of conventional blast-furnace cinder, research and development one kind can promote its agent on crack resistance of concrete
The pressure admixture that performance is more excellent, fragility is little has wide market prospect.
The content of the invention
It is an object of the invention to solve at least the above, and provide the advantage that at least will be described later.
A further object of the invention be by garbage edible fungi residue and blast-furnace cinder are introduced under preference temperature with
And Gypsum Fibrosum, gneiss, shale blending process, under the mediation of additive, a kind of little high strength concrete admixture of fragility is obtained.
It is a still further object of the present invention to provide a kind of application of high strength concrete admixture, by using present invention preparation
Admixture replace cement in right amount, the compressive property of Concrete Structure reduces the fragility of concrete, improves the work of high-strength concrete
Make performance.
In order to realize these purposes of the invention and further advantage, there is provided a kind of high strength concrete admixture, by
The raw material of following weight portion fraction is made：200 parts of blast-furnace cinder, edible fungi residue 35-45 parts, Gypsum Fibrosum 10-15 parts, gneiss
10-20 parts, shale 25-35 parts, active breeze 30-40 parts, attapulgite 20-30 parts, pine and cypress ash 15-18 parts, polypropylene fibre
2-4 parts, Stigma Maydis 0.2-0.5 parts, additive 1-3 parts；
The additive is by weight by glutinous rice glue, starch octenylsuccinate, Air Bladder pseudosciaenae seu Acipenser and glucomannoglycan
500:20:1-3:5 compositions；
The blast-furnace cinder is levigate ground granulated blast furnace slag, and Blain specific surface is 500-600m2/kg。
Preferably, described high strength concrete admixture and preparation method thereof, the edible fungi residue is golden mushroom
Slag.
Preferably, described high strength concrete admixture and preparation method thereof, the pine and cypress ash is by pine branch and cypress
Branch is 1 according to weight ratio:The ashes remained after 1 burning are crushed to 400-500 mesh and obtain using ball mill.
Preferably, described high strength concrete admixture and preparation method thereof, the polypropylene fibre is 2-5mm.
The invention also discloses a kind of preparation method of high strength concrete admixture, comprises the following steps：
Step one, by above-mentioned weight portion by glutinous rice glue, starch octenylsuccinate, Air Bladder pseudosciaenae seu Acipenser and glucomannoglycan distinguish
Weigh by above-mentioned weight ratio, 60 mesh are crossed in the coarse pulverization of Air Bladder pseudosciaenae seu Acipenser elder generation, then with glutinous rice glue, starch octenylsuccinate, Portugal
Sweet polysaccharide mix homogeneously, additive is obtained Jing micronizing to after 10-20 μm；
Step 2, its length will be crushed to less than 5mm, then with above-mentioned weight portion after the Stigma Maydis chopping of above-mentioned weight portion
Polypropylene fibre mixing, obtain fibre blend；
Step 3, the Gypsum Fibrosum of above-mentioned weight portion, gneiss, shale are placed in flour mill carry out grinding, rotating speed is 110r/
Min, grinding to grinding composition granule degree is 0.5-0.8mm, obtains the first mixture；
Step 4, the edible fungi residue of above-mentioned weight portion, active breeze, attapulgite are carried out into grinding in flour mill,
Rotating speed is 150r/min, and grinding to grinding grain graininess size is 0.8-1.0mm, obtains the second mixture；
Step 5, blast-furnace cinder and the first mixture are inserted in high temperature furnace, first with the ramp of 5 DEG C/min to 600
DEG C, the second mixture is added when being cooled to 300 DEG C, 2h is incubated, it is subsequently cooled to after room temperature in flour mill in grinding 3h, obtain
3rd mixture；
Step 6, fibre blend and additive be placed in mixture machine mix 3-5min, add pine and cypress ash,
Continue to stir 3-5min, add the 3rd mixture and continue to stir 30-40min, obtain high strength concrete admixture.
Preferably, the preparation method of described high strength concrete admixture, the Stigma Maydis in the step 2 and poly- third
After the mixing of alkene fiber, it is successively 1 to be placed in containing silane coupler, erucyl amide, quintessence oil and water in mass ratio:0.5:0.2:100
Organic solvent in soak 40min, be placed in after taking-up in 100 DEG C of baking ovens and dry to moisture less than 2%, obtain final product fiber mixing
Thing enters the process of step 6.
The invention also discloses a kind of application of high strength concrete admixture, in High-strength Concrete Mix, the blending
It is 25%-35% that material replaces the mass fraction of cement in concrete.
The present invention at least includes following beneficial effect：
The raw material that the present invention is adopted easily is purchased, and simple production process can change while High Strength Concrete Under Compressive Cyclic Loading intensity is improved
It is apt to its cracking resistance and fragility, and is 25%-35% when the admixture of the present invention replaces the mass fraction of cement in concrete,
It is more excellent using the service behaviour of its high-strength concrete prepared, comprcssive strength；
In the raw material that the present invention is used, edible fungi residue grinding together with active breeze, attapulgite is favorably improved many
Mill efficiency and Blending Efficiency of Blending between permeability material；Gneiss, shale are rich in abundant mineral nitrogen, because shale also contains clay
Material, its grinding together with Gypsum Fibrosum, gneiss, is favorably improved its mill efficiency, with blast-furnace cinder after high-temperature firing with powder
Edible fungi residue after mill continues combined grinding after firing at relatively low temperature together with active breeze, attapulgite, with one
The effect for plus one more than two, for the intensity and fragility that improve concrete have larger effect；Additive, pine and cypress ash and fiber
Mixture has stronger auxiliary gelation, for the fragility for improving concrete has larger effect.
The further advantage of the present invention, target and feature embody part by description below, and part will also be by this
The research of invention and practice and be understood by the person skilled in the art.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, to make those skilled in the art's reference say
Bright book word can be implemented according to this.
It should be noted that experimental technique described in following embodiments, if no special instructions, is conventional method, institute
Reagent and material are stated, if no special instructions, is commercially obtained.
Embodiment 1：
A kind of high strength concrete admixture, is made up of the raw material of following weight portion fraction：200 parts of blast-furnace cinder, edible fungi
35 parts of bacteria residue, 10 parts of Gypsum Fibrosum, 10 parts of gneiss, 25 parts of shale, active 30 parts of breeze, 20 parts of attapulgite, pine and cypress are grey 15 parts, poly-
2 parts of tacryl, 0.2 part of Stigma Maydis, 1 part of additive；
The additive is by weight by glutinous rice glue, starch octenylsuccinate, Air Bladder pseudosciaenae seu Acipenser and glucomannoglycan
500:20:1:5 compositions；
The blast-furnace cinder is levigate ground granulated blast furnace slag, and Blain specific surface is 500-600m2/kg。
Wherein, the edible fungi residue is needle mushroom dreg.
Wherein, it by pine branch and Cacumen Cupressi according to weight ratio is 1 that the pine and cypress ash is:The ashes remained after 1 burning are adopted
Ball mill is crushed to 400-500 mesh and obtains.
Wherein, the polypropylene fibre is 2-5mm.
The invention also discloses a kind of preparation method of high strength concrete admixture, comprises the following steps：
Step one, by above-mentioned weight portion by glutinous rice glue, starch octenylsuccinate, Air Bladder pseudosciaenae seu Acipenser and glucomannoglycan distinguish
Weigh by above-mentioned weight ratio, 60 mesh are crossed in the coarse pulverization of Air Bladder pseudosciaenae seu Acipenser elder generation, then with glutinous rice glue, starch octenylsuccinate, Portugal
Sweet polysaccharide mix homogeneously, additive is obtained Jing micronizing to after 10-20 μm；
Step 2, its length will be crushed to less than 5mm, then with above-mentioned weight portion after the Stigma Maydis chopping of above-mentioned weight portion
Polypropylene fibre mixing, obtain fibre blend；
Step 3, the Gypsum Fibrosum of above-mentioned weight portion, gneiss, shale are placed in flour mill carry out grinding, rotating speed is 110r/
Min, grinding to grinding composition granule degree is 0.5-0.8mm, obtains the first mixture；
Step 4, the edible fungi residue of above-mentioned weight portion, active breeze, attapulgite are carried out into grinding in flour mill,
Rotating speed is 150r/min, and grinding to grinding grain graininess size is 0.8-1.0mm, obtains the second mixture；
Step 5, blast-furnace cinder and the first mixture are inserted in high temperature furnace, first with the ramp of 5 DEG C/min to 600
DEG C, the second mixture is added when being cooled to 300 DEG C, 2h is incubated, it is subsequently cooled to after room temperature in flour mill in grinding 3h, obtain
3rd mixture；
Step 6, fibre blend and additive be placed in mixture machine mix 3-5min, add pine and cypress ash,
Continue to stir 3-5min, add the 3rd mixture and continue to stir 30-40min, obtain high strength concrete admixture.
Embodiment 2：
A kind of high strength concrete admixture, is made up of the raw material of following weight portion fraction：200 parts of blast-furnace cinder, edible fungi
45 parts of bacteria residue, 15 parts of Gypsum Fibrosum, 20 parts of gneiss, 35 parts of shale, active 40 parts of breeze, 30 parts of attapulgite, pine and cypress are grey 18 parts, poly-
4 parts of tacryl, 0.5 part of Stigma Maydis, 3 parts of additive；
The additive is by weight by glutinous rice glue, starch octenylsuccinate, Air Bladder pseudosciaenae seu Acipenser and glucomannoglycan
500:20:3:5 compositions；
The blast-furnace cinder is levigate ground granulated blast furnace slag, and Blain specific surface is 500-600m2/kg。
Wherein, the edible fungi residue is needle mushroom dreg.
Wherein, it by pine branch and Cacumen Cupressi according to weight ratio is 1 that the pine and cypress ash is:The ashes remained after 1 burning are adopted
Ball mill is crushed to 400-500 mesh and obtains.
Wherein, the polypropylene fibre is 2-5mm.
The preparation method of high strength concrete admixture is with embodiment 1 in the present embodiment.
Embodiment 3：
A kind of high strength concrete admixture, is made up of the raw material of following weight portion fraction：200 parts of blast-furnace cinder, edible fungi
40 parts of bacteria residue, 13 parts of Gypsum Fibrosum, 15 parts of gneiss, 30 parts of shale, active 35 parts of breeze, 25 parts of attapulgite, pine and cypress are grey 17 parts, poly-
3 parts of tacryl, 0.3 part of Stigma Maydis, 2 parts of additive；
The additive is by weight by glutinous rice glue, starch octenylsuccinate, Air Bladder pseudosciaenae seu Acipenser and glucomannoglycan
500:20:2:5 compositions；
The blast-furnace cinder is levigate ground granulated blast furnace slag, and Blain specific surface is 500-600m2/kg。
Wherein, the edible fungi residue is needle mushroom dreg.
Wherein, it by pine branch and Cacumen Cupressi according to weight ratio is 1 that the pine and cypress ash is:The ashes remained after 1 burning are adopted
Ball mill is crushed to 400-500 mesh and obtains.
Wherein, the polypropylene fibre is 2-5mm.
The preparation method of high strength concrete admixture is with embodiment 1 in the present embodiment.
Embodiment 4：
On the basis of embodiment 3, the preparation method of described high strength concrete admixture, the Semen Maydiss in the step 2
After must mixing with polypropylene fibre, it is successively 1 to be placed in containing silane coupler, erucyl amide, quintessence oil and water in mass ratio:0.5:
0.2:40min is soaked in 100 organic solvent, is placed in after taking-up in 100 DEG C of baking ovens and is dried to moisture less than 2%, obtained final product
Fibre blend enters the process of step 6.
The invention also discloses a kind of application of high strength concrete admixture, in High-strength Concrete Mix, the blending
It is 25%-35% that material replaces the mass fraction of cement in concrete.
In order to illustrate the technique effect of the present invention, the present inventor prepares respectively for embodiment 3 and embodiment 4
Admixture M1 and M2 carry out preparation high-strength concrete, study admixture and replace the mass fraction of cement to resist high-strength concrete
The impact of Compressive Strength and fragility is shown in Table respectively 2 and table 3.
The formula of wherein conventional concrete is：Cement 600kg, river sand, rubble and water reducer amount to 1900kg, water 145kg.
The present invention replaces in conventional concrete 25% cement to replace cement by comparative example admixture with conventional existing admixture M0
Impact of the mass fraction to High Strength Concrete Under Compressive Cyclic Loading intensity and fragility is shown in Table 1.
Table 1.M0 admixtures replace impact of the cement to concrete crushing strength and fragility
Table 2.M1 admixtures replace impact of the cement quality fraction to concrete crushing strength and fragility
Table 3.M2 admixtures replace impact of the cement quality fraction to concrete crushing strength and fragility
With reference to Tables 1 and 2 as can be seen that conventional in the admixture prepared by embodiments of the invention 3, with comparative example mix
Close material to compare, when cement replaces mass fraction to be all 25%, its comprcssive strength is remarkably reinforced, and fragility is obviously reduced；From table 2
As can be seen that increasing to 60% with M1 admixtures replacement cement quality fraction, its resistance to compression degree gradually increases, but
Fragility also gradually increases, and general compression strength value be enough in 100-120 in high-strength concrete, and now Factor of Brittleness is also controlled
8.0 or so, therefore replace cement quality fraction to be advisable as 25%-35% with M1 admixtures.
When can be seen that with M1 admixtures and identical M2 admixtures replacement cement quality fraction with reference to table 2 and table 3, M2
Its resistance to compression degree size variation of prepared by the concrete of preparation and M1 concrete is not obvious, and prepared by M2 concrete its fragility
There is a certain degree of reduction, can be illustrated with this, composite fibre is modified and processes the M2 admixtures for obtaining, can be in certain journey
Spend in the fragility for reducing concrete.
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in description and embodiment
With, it can be applied to completely various suitable the field of the invention, for those skilled in the art, can be easily
Other modification is realized, therefore under the general concept limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the embodiment with description.
Claims (7)
1. a kind of high strength concrete admixture, it is characterised in that be made up of the raw material of following weight portion fraction：Blast-furnace cinder 200
It is part, edible fungi residue 35-45 parts, Gypsum Fibrosum 10-15 parts, gneiss 10-20 parts, shale 25-35 parts, active breeze 30-40 parts, recessed
Convex rod soil 20-30 parts, pine and cypress ash 15-18 parts, polypropylene fibre 2-4 parts, Stigma Maydis 0.2-0.5 parts, additive 1-3 parts；
The additive is by weight by glutinous rice glue, starch octenylsuccinate, Air Bladder pseudosciaenae seu Acipenser and glucomannoglycan
500:20:1-3:5 compositions；
The blast-furnace cinder is levigate ground granulated blast furnace slag, and Blain specific surface is 500-600m2/kg。
2. high strength concrete admixture as claimed in claim 1 and preparation method thereof, it is characterised in that the edible fungi residue
For needle mushroom dreg.
3. high strength concrete admixture as claimed in claim 1 and preparation method thereof, it is characterised in that the pine and cypress ash be by
Pine branch and Cacumen Cupressi are 1 according to weight ratio:The ashes remained after 1 burning are crushed to 400-500 mesh and obtain using ball mill.
4. high strength concrete admixture as claimed in claim 1 and preparation method thereof, it is characterised in that the polypropylene fibre
For 2-5mm.
5. a kind of preparation method of the high strength concrete admixture as described in arbitrary in claim 1-4, it is characterised in that include
Following steps：
Step one, by above-mentioned weight portion by glutinous rice glue, starch octenylsuccinate, Air Bladder pseudosciaenae seu Acipenser and glucomannoglycan respectively by upper
State weight ratio to weigh, 60 mesh are crossed in the coarse pulverization of Air Bladder pseudosciaenae seu Acipenser elder generation, it is then sweet poly- with glutinous rice glue, starch octenylsuccinate, Portugal
Sugared mix homogeneously, additive is obtained Jing micronizing to after 10-20 μm；
Step 2, its length will be crushed to less than 5mm after the Stigma Maydis chopping of above-mentioned weight portion, it is then poly- with above-mentioned weight portion
Tacryl mixes, and obtains fibre blend；
Step 3, the Gypsum Fibrosum of above-mentioned weight portion, gneiss, shale be placed in flour mill carry out grinding, rotating speed is 110r/min,
Grinding to grinding composition granule degree is 0.5-0.8mm, obtains the first mixture；
Step 4, the edible fungi residue of above-mentioned weight portion, active breeze, attapulgite are carried out into grinding, rotating speed in flour mill
For 150r/min, grinding to grinding grain graininess size is 0.8-1.0mm, obtains the second mixture；
Step 5, blast-furnace cinder and the first mixture are inserted in high temperature furnace, it is cold first with the ramp of 5 DEG C/min to 600 DEG C
The second mixture is added when but to 300 DEG C, 2h is incubated, is subsequently cooled to after room temperature in flour mill in grinding 3h, obtain the 3rd
Mixture；
Step 6, fibre blend and additive are placed in mixture machine mix 3-5min, add pine and cypress ash, continue
Stirring 3-5min, adds the 3rd mixture and continues to stir 30-40min, obtains high strength concrete admixture.
6. the preparation method of high strength concrete admixture as claimed in claim 5, it is characterised in that the jade in the step 2
After rice must mix with polypropylene fibre, it is successively 1 to be placed in containing silane coupler, erucyl amide, quintessence oil and water in mass ratio:
0.5:0.2:40min is soaked in 100 organic solvent, is placed in after taking-up in 100 DEG C of baking ovens and is dried to moisture less than 2%,
Fibre blend is obtained final product into the process of step 6.
7. a kind of application of high strength concrete admixture as claimed in claim 3, it is characterised in that in High-strength Concrete Mix
In, it is 25%-35% that the admixture replaces the mass fraction of cement in concrete.
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| CN107298538A (en) * | 2017-06-22 | 2017-10-27 | 中国建筑科学研究院 | Composite mineral admixture based on gneiss powder |
| CN108484065A (en) * | 2018-04-08 | 2018-09-04 | 赵顺全 | A kind of anti-freezing type pumecrete |
| CN108911598A (en) * | 2018-06-29 | 2018-11-30 | 广西浙缘农业科技有限公司 | A kind of technique preparing alkali-activated material using agricultural wastes |
| CN113735511A (en) * | 2021-09-06 | 2021-12-03 | 中象新材料（大连）有限公司 | Application of starch octenyl succinate, building mortar, putty and ceramic tile adhesive |
| CN114988824A (en) * | 2022-05-19 | 2022-09-02 | 中国建筑第二工程局有限公司 | Anti-cracking preparation method for large-size raft plate foundation concrete |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107298538A (en) * | 2017-06-22 | 2017-10-27 | 中国建筑科学研究院 | Composite mineral admixture based on gneiss powder |
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| CN108911598A (en) * | 2018-06-29 | 2018-11-30 | 广西浙缘农业科技有限公司 | A kind of technique preparing alkali-activated material using agricultural wastes |
| CN113735511A (en) * | 2021-09-06 | 2021-12-03 | 中象新材料（大连）有限公司 | Application of starch octenyl succinate, building mortar, putty and ceramic tile adhesive |
| CN114988824A (en) * | 2022-05-19 | 2022-09-02 | 中国建筑第二工程局有限公司 | Anti-cracking preparation method for large-size raft plate foundation concrete |
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| Publication number | Publication date |
|---|---|
| CN106630738B (en) | 2019-08-13 |
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