CN104478270A - Antifreeze and waterproof alloy powder for concrete and preparation method thereof - Google Patents
Antifreeze and waterproof alloy powder for concrete and preparation method thereof Download PDFInfo
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- CN104478270A CN104478270A CN201410835712.5A CN201410835712A CN104478270A CN 104478270 A CN104478270 A CN 104478270A CN 201410835712 A CN201410835712 A CN 201410835712A CN 104478270 A CN104478270 A CN 104478270A
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Abstract
The invention relates to the field of building materials, in particular to antifreeze and waterproof alloy powder for concrete and a preparation method of the antifreeze and waterproof alloy powder, and aims at solving the problems that concrete work is easily damaged and poor in comprehensive durability due to frequent alternative freezing and thawing of concrete in the prior art, and the existing technologies are generally that some index is excessively raised by lowering down other performance indexes, particularly lowering down the mechanical performance index. The invention aims to provide antifreeze and waterproof alloy powder for concrete, which is prepared from the following raw materials in parts by weight: 13.28 to 19.75 parts of Al2O3, 14.20 to 22.24 parts of MgO, 13.59 to 20.60 parts of SiO2, 9.36 to 13.91 parts of ZrO2, and 8.82 to 14.42 parts of MoO3. The preparation method comprises the steps of uniformly mixing the raw materials; performing high-temperature injection and rolling; then activating and modifying through a siliane coupling agent and hexamethonium chloride; compounding by the nano-vapor deposition and spray coating technology; finally crushing to obtain the antifreeze and waterproof alloy powder for concrete. With the adoption of the antifreeze and waterproof alloy powder for concrete, the freeze-thaw resistance of concrete is greatly improved, the freeze resistance is improved by a number of grades, and the convenience of construction and operation is ensured while the waterproofing and anti-leakage performance as well as the cracking resistance are improved.
Description
Technical field
The present invention relates to building material field, particularly a kind of concrete antifreezing methanol bronze and preparation method thereof.
Background technology
Concrete refers to the general designation being cemented to overall engineered composite material by gelling material by gathering materials, and concrete performance mainly contains following several:
Workability: the most important performance of concrete mix, the performance of the denseness of its integrating representation mixture, mobility, plasticity-, anti-laminated segregation bleeding and easily wiping one's face property etc.;
Intensity: the most important mechanical property after concrete hardening, refers to that concrete opposing is pressed, drawn, curved, the ability of cutting equal stress;
Distortion: concrete can produce distortion under load or humiture effect, mainly comprises recoverable deformation, viscous deformation, contraction and temperature deformation etc.;
Weather resistance: in the ordinary course of things, concrete has good weather resistance, but in cold district, particularly at the engineering position of change of level and when being subject to alternate freezing and thawing effect frequently under water-saturated state, concrete is easy to damage, for this will have certain frost resistance requirement to concrete, during for fluid-tight engineering, require that concrete has good impermeability and solidity to corrosion, impervious, frost resistance, resistance to fouling is vital several requirements in concrete durability, and the concrete additive that prior art is produced is reduce other performance index mostly while the raising to certain index, particularly the mechanical performance index such as intensity is cost.
Summary of the invention
For existing concrete when alternate freezing and thawing effect frequently, be easy to damage, weather resistance is not strong, and prior art is all reduce other index to the raising of certain index mostly, and particularly the mechanical performance index such as intensity is the feature of cost;
The object of the present invention is to provide a kind of concrete antifreezing methanol bronze, by the Al of parts by weight
2o
313.28 ~ 19.75 parts, MgO14.20 ~ 22.24 part, SiO
213.59 ~ 20.60 parts, ZrO
29.36 ~ 13.91 parts, MoO
3make for raw material for 8.82 ~ 14.42 parts,
Its making method is: raw material is mixed through high-temperature injection, rolled, again through silicone couplet, six ammonium chloride activation modifications, pulverize after finally utilizing the method compound of nano-gas-phase deposition and splashing coating technique and form, in making method, equipment used is known device of the prior art.
The alloy powder made thus is originally as hydrophobic material, be layering under playing microcosmic the effect of thin slice hydrophobic, surface forms the coarse wear layer in nanometer scale misfitted, be beneficial to and increase inside concrete surface tension, increase resistance to flow, blocking internal capillary gap, the concrete antifreezing impact of stopping bleeding of concrete or cause because of infiltration, the unique texture of the thin slice superposition presented under product micro, surface-area and the surface energy of nanoparticle can be increased, reduce and reduce concrete mix segregation, bleeding, improve material stacking effect, promote the occlusion between concrete coarse-fine aggregate, link, cement base-material and hydrated product are combined in a large number and with alloy powder to be that nucleus forms intensity at its particle surface high, the hydrated gel body that stability is strong.
Embodiment
Below in conjunction with embodiment, detailed description is made to summary of the invention
Embodiment 1
A kind of concrete antifreezing methanol bronze, by the Al of parts by weight
2o
313.28 parts, MgO 14.20 parts, SiO
213.59 part, ZrO
29.36 parts, MoO
3make for raw material for 8.82 parts,
Its making method comprises the following steps:
Step one, high-temperature injection:
Raw material is mixed, under 1900-2100 DEG C of hot conditions, adopts W-Re alloys nozzle, along with increase in temperature, naturally eject melt granules shape microballon;
Step 2, to roll:
Thickness is become to be the superposition thin slice of 0.6 ~ 1.2 micron with the roll extrusion also non-crystallization of ejecting of molybdenum system roller or the melt granules shape microballon that solidifies;
Step 3, activation modification:
The mixture thin slice of 0.6 ~ 1.2 micron is added in vacuum reaction still, get nano silicone coupling agent and six ammonium chlorides of 1% of added mixture flake weight, wherein the two weight respectively accounts for 50%, control temperature, between 400 DEG C ~ 600 DEG C, forms superposition water-repellent layer material by the method and technology explained hereafter of vapour deposition and splashing plated film;
Step 4, pulverizing:
It is 300-350 order that material disintegrating apparatus made by step 3 is crushed to order number.
Embodiment 2
A kind of concrete antifreezing methanol bronze, by the Al of parts by weight
2o
319.75 parts, MgO 22.24 parts, SiO
220.60 part, ZrO
213.91 part, MoO
3make for raw material for 14.42 parts,
Its making method comprises the following steps:
Step one, high-temperature injection:
Raw material is mixed, under 1900-2100 DEG C of hot conditions, adopts W-Re alloys nozzle, along with increase in temperature, naturally eject melt granules shape microballon;
Step 2, to roll:
Thickness is become to be the superposition thin slice of 0.6 ~ 1.2 micron with the roll extrusion also non-crystallization of ejecting of molybdenum system roller or the melt granules shape microballon that solidifies;
Step 3, activation modification:
The mixture thin slice of 0.6 ~ 1.2 micron is added in vacuum reaction still, get nano silicone coupling agent and six ammonium chlorides of 1% of added mixture flake weight, wherein the two weight respectively accounts for 50%, control temperature, between 400 DEG C ~ 600 DEG C, forms superposition water-repellent layer material by the method and technology explained hereafter of vapour deposition and splashing plated film;
Step 4, pulverizing:
It is 300-350 order that material disintegrating apparatus made by step 3 is crushed to order number.
Embodiment 3
A kind of concrete antifreezing methanol bronze, by the Al of parts by weight
2o
316.50 parts, MgO 18.20 parts, SiO
217.60 part, ZrO
211.50 part, MoO
3make for raw material for 12.20 parts,
Its making method comprises the following steps:
Step one, high-temperature injection:
Raw material is mixed, under 1900-2100 DEG C of hot conditions, adopts W-Re alloys nozzle, along with increase in temperature, naturally eject melt granules shape microballon;
Step 2, to roll:
Thickness is become to be the superposition thin slice of 0.6 ~ 1.2 micron with the roll extrusion also non-crystallization of ejecting of molybdenum system roller or the melt granules shape microballon that solidifies;
Step 3, activation modification:
The mixture thin slice of 0.6 ~ 1.2 micron is added in vacuum reaction still, get nano silicone coupling agent and six ammonium chlorides of 1% of added mixture flake weight, wherein the two weight respectively accounts for 50%, control temperature, between 400 DEG C ~ 600 DEG C, forms superposition water-repellent layer material by the method and technology explained hereafter of vapour deposition and splashing plated film;
Step 4, pulverizing:
It is 300-350 order that material disintegrating apparatus made by step 3 is crushed to order number.
The concrete antifreezing methanol bronze that raw material and method are made thus has following performance:
One, concrete antifreezing waterproof alloy powder material is originally as hydrophobicity hydrophobic material, microcosmic surface easily forms needle point polymeric groups layer, form the wear layer of all not coincideing, its size is in nanometer range, form nanometer scale surface roughness, greatly reduce the interfacial energy of hydrophobic nature basal plane, when the globule and material formed be almost point cantact time, interfacial energy drops to minimum, corresponding contact angle will become large, hydrophobicity improves, the hydrophobic nature of material is good, can reduce and reduce concrete mix segregation, bleeding, improve material stacking effect, play particle surface effect and small-size effect, increase sharply the surface-area of nanoparticle and surface energy,
Two, alloy powder makes coagulation water in soil not form path, make tiny, dispersion that free water in concrete mix becomes, improve quantity and the feature of concrete capillary largely, reduce bleeding of concrete passage, promote the occlusion between concrete coarse-fine aggregate, link, expansion microtexture contact area, accelerate hydrated cementitious speed and extent of hydration;
Three, containing a small amount of nano silicon in alloy powder, mix in cement-based material and can improve grog early hydration speed by a relatively large margin, calcium hydroxide is made more to form bonding at nano-silica surface, generate high-strength gel, refinforced cement density, reduce porosity, reduce calcium hydroxide content and refinement calcium hydroxide crystals, thus raising sand-cement slurry, concrete ultimate compression strength, simultaneously, also containing a small amount of active modification promotor in component, gelling material together can be closely cementing gathering materials, form fine and close microtexture, make hardened cement paste closely knit, thus raising physical strength, in the middle of whole hydration process, cement base-material and hydrated product is caused to be combined in a large number and with alloy powder to be that nucleus forms intensity at its particle surface high, the hydrated gel body that stability is strong, becoming internal void in concrete hydrating process take alloy powder as the dense structure of core, extremely strong with concrete compatibility, the special rete that alloy powder surface is formed can penetrate into concrete pore inside easily, make alloy slice capping concrete pore under microcosmic, and be tightly sticked together, concrete antifreezing methanol bronze forms the muddy dense structure be integrated together with concrete, the concrete antifreezing impact of stopping bleeding of concrete or cause because of infiltration,
Four, the concrete antifreezing methanol bronze presenting wafer state can block to a great extent, block inside concrete tiny crack, capillary microporosity, give full play to the hydrophobic effect of the thin slice that is layering simultaneously, increase inside concrete surface tension, for hydrated cementitious in concrete provides enough and the moisture that can directly use, in capillary channel, form countless hydrophobic film layer, make water and water carry metal ion or acid ion impenetrable thin slice layer by layer barrier.
experimental contrast analysis
freezing and thawing performance contrasts
According to large mineral admixture proportioning, through being repeatedly cycled to repeat detection; The freeze proof circulation of normal concrete not having admixture concrete antifreezing methanol bronze is 150 times, the freeze proof circulation of the concrete antifreezing methanol bronze of admixture 1% content is 525 times, the freeze proof circulation of the concrete antifreezing methanol bronze of admixture 2% content is 625 times, and admixture concrete antifreezing methanol bronze increases substantially agent on crack resistance of concrete freeze thawing performance;
anti-freezing property contrasts
According to concrete durability check evaluation criterion, the concrete test block anti-freezing property of admixture alloy powder of the present invention improves several freeze proof grade, and data are:
Admixture 1% concrete antifreezing methanol bronze contrasts not admixture concrete antifreezing methanol bronze anti-freezing property and rises to: (525-150)/150 × 100%=250%;
Admixture 2% concrete antifreezing methanol bronze contrasts not admixture concrete antifreezing methanol bronze anti-freezing property and rises to: (625-150)/150 × 100%=316.7%;
anti-permeability performance contrasts
Excellent waterproof impervious characteristic, admixture 1% concrete antifreezing methanol bronze contrasts the improvement different larval instar of concrete impermeability,
Concrete test block is under 2.0MPa
The benchmark test block 3d permeated height in the length of time of admixture concrete antifreezing methanol bronze is not: 141.9mm, 28d length of time is 11.1mm, the permeated height of interpolation 1% concrete antifreezing methanol bronze corresponding is with it respectively: 82.3mm, 3.5 mm, so, draw following impervious raising data:
（141.9—82.3/141.9×100%=42.0%
（11.1—3.5）/11.1×100%=68.5%
resistance to cleavage contrasts
Admixture 1% concrete antifreezing methanol bronze contrasts not admixture concrete antifreezing methanol bronze, and according to the early stage cracking computation of edge of a knife leash law, it improves degree is (389-209)/389 × 100%=46.3%
It is more than part waterproof impervious characteristic index, on the basis of the above, application mortar, concrete has also done other performance tests a large amount of, comprise waterproof impervious characteristic and water regain etc., according to test result analysis, relative to the water regain of normal concrete 100%, by inspection concrete water regain below 1%, permeability-thickness is less than 1 millimeter, concrete antifreezing methanol bronze to concrete over-all properties particularly mechanical property without negative impact, through repeated detection, mortar concrete compressive strength rate reaches more than 110, performance all reaches higher level requirement in standard on year-on-year basis, same, other mechanical performance indexs such as folding strength do not reduce, concrete antifreezing methanol bronze and cement concrete have outstanding compatible performance, at raising waterproof impervious characteristic, it is construction while improving resistance to cleavage, operation offers convenience, be different from concrete admixtures numerous in the market, there is good social value and economic worth.
Claims (4)
1. a concrete antifreezing methanol bronze, is characterized in that by the Al of parts by weight
2o
313.28 ~ 19.75 parts, MgO14.20 ~ 22.24 part, SiO
213.59 ~ 20.60 parts, ZrO
29.36 ~ 13.91 parts, MoO
3make for raw material for 8.82 ~ 14.42 parts,
Its making method comprises the following steps:
Step one, high-temperature injection:
Raw material is mixed, under 1900-2100 DEG C of hot conditions, adopts W-Re alloys nozzle, along with increase in temperature, naturally eject melt granules shape microballon;
Step 2, to roll:
Thickness is become to be the superposition thin slice of 0.6 ~ 1.2 micron with the melt granules shape microballon of the roll extrusion also non-crystallization of ejecting of molybdenum system roller or curdled appearance;
Step 3, activation modification:
The mixture thin slice of 0.6 ~ 1.2 micron is added in vacuum reaction still, get nano silicone coupling agent and six ammonium chlorides of 1% of added mixture flake weight, wherein the two weight respectively accounts for 50%, control temperature, between 400 DEG C ~ 600 DEG C, forms superposition water-repellent layer material by the method and technology explained hereafter of vapour deposition and splashing plated film;
Step 4, pulverizing:
It is 300-350 order that material disintegrating apparatus made by step 3 is crushed to order number.
2. a kind of concrete antifreezing methanol bronze according to claim 1, is characterized in that by the Al of parts by weight
2o
313.28 parts, MgO 14.20 parts, SiO
213.59 part, ZrO
29.36 parts, MoO
3make for raw material for 8.82 parts.
3. a kind of concrete antifreezing methanol bronze according to claim 1, is characterized in that by the Al of parts by weight
2o
319.75 parts, MgO 22.24 parts, SiO
220.60 part, ZrO
213.91 part, MoO
3make for raw material for 14.42 parts.
4. a kind of concrete antifreezing methanol bronze according to claim 1, is characterized in that by the Al of parts by weight
2o
316.50 parts, MgO 18.20 parts, SiO
217.60 part, ZrO
211.50 part, MoO
3make for raw material for 12.20 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835712.5A CN104478270A (en) | 2014-12-30 | 2014-12-30 | Antifreeze and waterproof alloy powder for concrete and preparation method thereof |
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|---|---|---|---|
| CN201410835712.5A CN104478270A (en) | 2014-12-30 | 2014-12-30 | Antifreeze and waterproof alloy powder for concrete and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948549A (en) * | 2016-04-26 | 2016-09-21 | 中国路桥工程有限责任公司 | Large-water-absorption-rate aggregate surface treatment agent |
| CN106904855A (en) * | 2017-04-06 | 2017-06-30 | 河南科丽奥高新材料有限公司 | A kind of freeze proof waterproof alloyed powder and preparation method thereof |
| CN107200527A (en) * | 2017-05-18 | 2017-09-26 | 河南科丽奥高新材料有限公司 | A kind of freeze proof waterproof alloy powder coating of cement base and its preparation technology |
| CN108249849A (en) * | 2018-01-16 | 2018-07-06 | 云南交投集团公路建设有限公司 | A kind of high agstone volume green concrete |
| CN110357513A (en) * | 2019-07-26 | 2019-10-22 | 大连海事大学 | A kind of freeze proof anti-crack concrete and preparation method thereof |
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| CN85105271A (en) * | 1985-07-06 | 1987-01-07 | 中国科学院金属研究所 | A kind of nickel-base alloy |
| JP4070487B2 (en) * | 2002-03-18 | 2008-04-02 | 住友大阪セメント株式会社 | Concrete production method |
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| CN85105271A (en) * | 1985-07-06 | 1987-01-07 | 中国科学院金属研究所 | A kind of nickel-base alloy |
| JP4070487B2 (en) * | 2002-03-18 | 2008-04-02 | 住友大阪セメント株式会社 | Concrete production method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948549A (en) * | 2016-04-26 | 2016-09-21 | 中国路桥工程有限责任公司 | Large-water-absorption-rate aggregate surface treatment agent |
| CN105948549B (en) * | 2016-04-26 | 2017-10-24 | 中国路桥工程有限责任公司 | A kind of big water absorption rate aggregate surface inorganic agent |
| CN106904855A (en) * | 2017-04-06 | 2017-06-30 | 河南科丽奥高新材料有限公司 | A kind of freeze proof waterproof alloyed powder and preparation method thereof |
| CN106904855B (en) * | 2017-04-06 | 2020-01-17 | 河南科丽奥高新材料有限公司 | Anti-freezing waterproof alloy powder and preparation method thereof |
| CN107200527A (en) * | 2017-05-18 | 2017-09-26 | 河南科丽奥高新材料有限公司 | A kind of freeze proof waterproof alloy powder coating of cement base and its preparation technology |
| CN108249849A (en) * | 2018-01-16 | 2018-07-06 | 云南交投集团公路建设有限公司 | A kind of high agstone volume green concrete |
| CN110357513A (en) * | 2019-07-26 | 2019-10-22 | 大连海事大学 | A kind of freeze proof anti-crack concrete and preparation method thereof |
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Application publication date: 20150401 |