CN108409230A - There is the preparation method of the non-evaporating foster ultra-high performance concrete prefabricated board of heat storage function - Google Patents
There is the preparation method of the non-evaporating foster ultra-high performance concrete prefabricated board of heat storage function Download PDFInfo
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- CN108409230A CN108409230A CN201810195711.7A CN201810195711A CN108409230A CN 108409230 A CN108409230 A CN 108409230A CN 201810195711 A CN201810195711 A CN 201810195711A CN 108409230 A CN108409230 A CN 108409230A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses the preparation methods for the non-evaporating foster ultra-high performance concrete prefabricated board for having heat storage function, by fine aggregate, cement, wet-milling superfined flyash or wet-milling flyash, silicon ash, steel fibre, the stirring of wet-milling limestone micropowder, water is uniformly mixed with water-reducing agent, it pours into wherein, water is uniformly mixed with water-reducing agent and organic ammonium salt, pours into together with micro-nano heat accumulation capsule and wherein stirs, obtain mixture；Mixture carries out cloth；Cloth, which is conserved to intensity, reaches requirement, obtains ultra-high performance concrete prefabricated board.In the present invention wet-milling superfined flyash, wet-milling agstone and heat accumulation capsule by maximal unit weight method and induction nucleation theory realize ultra-high performance concrete non-evaporating foster morning by force with the raising of flexural strength；The introducing of micro-nano heat accumulation capsule also autonomous absorb can build temperature during prefabricated board is on active service with release heat regulation, and prepared concrete divergence is big, pressure-proof and snap-resistent intensity is high, non-evaporating support, has high thermal storage performance；It is at low cost, building energy consumption can be reduced.
Description
Technical field
The invention belongs to building material technical fields, and in particular to have the non-evaporating foster ultra-high performance concrete of heat storage function pre-
The preparation method of making sheet.
Background technology
Ultra-high performance concrete, abbreviation UHPC are cement base engineering material most innovative in the past few decades,
With superhigh intensity, low brittleness and excellent durability, the shortcomings of normal concrete can be effectively made up.It is domestic at present
Few enterprises prepare prefabricated component using UHPC, but such as French Lafarge of external many large enterprises has been carried out
Correlative study, and carried out business application.
During producing UHPC prefabricated components, to obtain higher intensity, generally use steam press maintenance or steam curing
Technique, greatly reduce production efficiency, increase production cost.Further, since the relatively low prepared coagulation out of the ratio of mud
Native mobility is relatively poor, is extremely difficult to the effect that mechanical property gets both with working performance.Assembled architecture is future architecture industry
Developing direction, it is necessary to consider the energy consumption problem of assembled architecture, but traditional prefabricated components are not provided with corresponding reduces energy
The function of consumption, to proposing acid test in the energy consumption of the following assembled architecture.
CN105541231 discloses a kind of controllable temperature concrete, raw materials used to include by weight：Binding material 70-
80 parts, 10-15 parts of chopped carbon fiber, 0.5-0.8 parts of copper facing steel fibre, 0.8-1.0 parts of rubber powder, 0.1-0.3 parts of water-reducing agent, defoaming
0.05-0.10 parts of agent；Preparation method is after mixing above-mentioned each raw material with aggregate plus water is mixed thoroughly, obtained through pouring, conserving.Subtract
Aqua is polycarboxylate water-reducer.Its obvious effect that cools down under the high temperature conditions has heat storage function under cryogenic, can be effective
Extend the service life of highway.
Invention content
The purpose of the present invention is be directed to above-mentioned present situation, it is desirable to provide and it is a kind of to have strong effect of non-evaporating foster morning, there is higher storage
The preparation method of the non-evaporating foster ultra-high performance concrete prefabricated board for having heat storage function of hot property and mechanical property.
The realization method of the object of the invention is the preparation side for the non-evaporating foster ultra-high performance concrete prefabricated board for having heat storage function
Method is as follows：
1) by 1200-1250 parts of mass fraction fine aggregate, 540-640 parts of cement, wet-milling superfined flyash or wet-milling fine coal
40-50 parts grey, 50-100 parts of silicon ash, 150-180 parts of steel fibre, 50-60 parts of wet-milling limestone micropowder stir in blender
5min；
The micro-nano heat accumulation capsule is mineral crystal cyst wall, mechanical property>15 μ N, 20-25 DEG C of phase transition temperature, heat content>
150J/g, the capsule that grain size is 0.6-1 μm；
2) water of mass fraction 120-150 is uniformly mixed with 2.5-5 parts of water-reducing agents, pours into and stirs 2min in blender；
The water-reducing agent is water-reducing rate>40% both sexes water-reducing agent；
3) water of 80-100 parts of mass fraction is uniformly mixed with 2.5-5 parts of water-reducing agents and 5-10 parts of tetrabutylammonium bromide,
Blender stirring 2min is poured into together for 50-100 parts, obtain mixture with micro-nano heat accumulation capsule；
The water-reducing agent is the both sexes water-reducing agent that water-reducing rate is not less than 40%；
4) mixture obtained by step 3) is subjected to cloth；
5) step 4) institute cloth is conserved, maintenance reaches requirement to intensity, obtains ultra-high performance concrete prefabricated board.
The beneficial effects of the invention are as follows：
1. using maximal unit weight method, using 1-2 μm of flyash, 0.6-1 μm of heat accumulation capsule and 0.2-0.6 μm of lime stone
Powder heap product, which reaches, to be reduced hole and induces hydrated product nucleus, while utilizing the silicic acid in both sexes water-reducing agent dispersion cement minerals
Salt mineral and aluminium mineral material, to achieve the effect that non-evaporating foster morning is strong.
2. on the one hand the heat accumulation capsule coated using high stability mineral crystal has higher thermal storage performance, another party
Traditional heat accumulation capsule is eliminated to mechanical performance of concrete detrimental effect in face, is carried with cooperateing with for hot property to reach mechanical property
It rises.
Specific implementation mode
The present invention accelerates the hydrolysis rate of flyash and cement cementitious material using organic ammonium salt, quickly improves cementitious material
System ion concentration in pore solution provides necessary material support for hydrated product generation；Flyash, agstone, heat accumulation capsule three
Person's grain size optimizes matching, utmostly reduces cementitious material system pore structure, the affiliated particle size range of three can be to glue
Gel material system hydrated product plays the role of nucleus induction, promotes material hydrated product fast nucleation precipitation, structure early stage micro-
See structure.Common distribution is carried out to silicate mineral and aluminium mineral material using amphoteric dispersant, eliminates aluminium mineral material dispersion
Delayed ettringite formation caused by unevenness, to eradicate unfavorable shadow of the delayed ettringite to ultra-high performance concrete volume stability
It rings, and plays the dispersion-strengthened effect of aluminium mineral material hydrated product, further increase the early strength of ultra-high performance concrete.
Above-mentioned function collective effect achievees the effect that non-evaporating foster morning is strong.
Mineral crystal is that the heat accumulation capsule thermal coefficient of wall material is higher, and thermal stability is good, excellent in mechanical performance, can be gelled
Material matrix bonding is close, on the one hand by the dispersion-strengthened intensity for improving ultra-high performance concrete, on the other hand with matrix
Tight bond structure provides efficient " microenvironment " for Heat transmission, substantially increases heat exchanger effectiveness.
The present invention is by fine aggregate, cement, wet-milling superfined flyash or wet-milling flyash, silicon ash, steel fibre, wet-milling lime stone
Micro mist stirs, and water is uniformly mixed with water-reducing agent, is poured into wherein, water is uniformly mixed with water-reducing agent and tetrabutylammonium bromide, with
Micro-nano heat accumulation capsule pours into together wherein to be stirred, and mixture is obtained；Mixture carries out cloth；Cloth is conserved to intensity to reach and be wanted
It asks, obtains ultra-high performance concrete prefabricated board.
The micro-nano heat accumulation capsule is mineral crystal cyst wall, mechanical property>15 μ N, phase transition temperature are 20-25 DEG C, heat content
>150J/g, grain size are 0.6-1 μm.
The cement is 42.5 Portland cements, specific surface area 350-370m2/ kg, 28 days compression strength>
48MPa。
The wet-milling superfined flyash is using wet-milling technology of preparing to phosphorus content<2% ordinary fly ash processing is made,
To avoid reunion, 1-2 μm of grain size, solid content 50%.
The water-reducing agent is both sexes water-reducing agent, water-reducing rate>40%.The fine aggregate is the stone that fineness modulus is 2.5-3.2
Sand.The length of steel fiber is 0.5-2mm, draw ratio 10:1-30:1.
The wet-milling agstone is the lime stone of the levigate processing of wet-milling technology of preparing, and to avoid reunion, average grain diameter is
0.2-0.6 μm, solid content 50%.
The present invention is described in detail with reference to embodiment：
Embodiment 1
1) by 1200 parts of mass fraction fine aggregate, 540 parts of cement, 40 parts of wet-milling superfined flyash, 80 parts of silicon ash, steel fibre
150 parts, 60 parts of wet-milling limestone micropowder 5min is stirred in blender；
2) water of mass fraction 150 is uniformly mixed with 5 parts of both sexes water-reducing agents, pours into and stirs 2min in blender；
3) water of 100 parts of mass fraction is uniformly mixed with 5 parts of both sexes water-reducing agents and 5 parts of tetrabutylammonium bromide, with 80 parts
Micro-nano heat accumulation capsule pours into blender stirring 2min together, obtains mixture；
4) mixture obtained by step 3) is subjected to cloth；
5) step 4) institute cloth is conserved, maintenance reaches requirement to intensity, obtains ultra-high performance concrete prefabricated board.
Embodiment 2, with embodiment 1, unlike,
1) by 1210 parts of mass fraction fine aggregate, 560 parts of cement, 42 parts of wet-milling superfined flyash, 50 parts of silicon ash, steel fibre
160 parts, 51 parts of wet-milling limestone micropowder 5min is stirred in blender；
2) water of mass fraction 144 is uniformly mixed with 2.5 parts of both sexes water-reducing agents, pours into and stirs 2min in blender；
3) water of 96 parts of mass fraction is uniformly mixed with 2.5 parts of water-reducing agents and 10 parts of tetrabutylammonium bromide, it is micro- with 90 parts
Nanometer heat accumulation capsule pours into blender stirring 2min together, obtains mixture.
Embodiment 3, with embodiment 1, unlike,
1) by 1250 parts of mass fraction fine aggregate, 580 parts of cement, 44 parts of wet-milling superfined flyash, 60 parts of silicon ash, steel fibre
180 parts, 52 parts of wet-milling limestone micropowder 5min is stirred in blender；
2) water of mass fraction 138 is uniformly mixed with 3 parts of both sexes water-reducing agents, pours into and stirs 2min in blender；
3) water of 92 parts of mass fraction is uniformly mixed with 3 parts of both sexes water-reducing agents and 6 parts of tetrabutylammonium bromide, it is micro- with 75 parts
Nanometer heat accumulation capsule pours into blender stirring 2min together, obtains mixture.
Embodiment 4, with embodiment 1, unlike,
1) by 1240 parts of mass fraction fine aggregate, 600 parts of cement, 50 parts of wet-milling superfined flyash, 70 parts of silicon ash, steel fibre
155 parts, 50 parts of wet-milling limestone micropowder 5min is stirred in blender；
2) water of mass fraction 129 is uniformly mixed with 3.5 parts of both sexes water-reducing agents, pours into and stirs 2min in blender；
3) water of 86 parts of mass fraction is uniformly mixed with 3.5 parts of both sexes water-reducing agents and 7 parts of tetrabutylammonium bromide, with 50 parts
Micro-nano heat accumulation capsule pours into blender stirring 2min together, obtains mixture.
Embodiment 5, with embodiment 1, unlike,
1) by 1240 parts of mass fraction fine aggregate, 610 parts of cement, 46 parts of wet-milling superfined flyash, 80 parts of silicon ash, steel fibre
175 parts, 55 parts of wet-milling limestone micropowder 5min is stirred in blender；
2) water of mass fraction 132 is uniformly mixed with 4 parts of both sexes water-reducing agents, pours into and stirs 2min in blender；
3) water of 88 parts of mass fraction is uniformly mixed with 4 parts of both sexes water-reducing agents and 8 parts of tetrabutylammonium bromide, with 100 parts
Micro-nano heat accumulation capsule pours into blender stirring 2min together, obtains mixture.
Embodiment 6, with embodiment 1, unlike,
1) by 1220 parts of mass fraction fine aggregate, 630 parts of cement, 48 parts of wet-milling superfined flyash, 100 parts of silicon ash, steel are fine
165 parts of dimension, 57 parts of wet-milling limestone micropowder stir 5min in blender；
2) water of mass fraction 126 is uniformly mixed with 4.5 parts of both sexes water-reducing agents, pours into and stirs 2min in blender；
3) water of 84 parts of mass fraction is uniformly mixed with 4.5 parts of both sexes water-reducing agents and 9 parts of tetrabutylammonium bromide, with 70 parts
Micro-nano heat accumulation capsule pours into blender stirring 2min together, obtains mixture.
Embodiment 7, with embodiment 1, unlike,
1) by 1210 parts of mass fraction fine aggregate, 640 parts of cement, 43 parts of wet-milling superfined flyash, 90 parts of silicon ash, steel fibre
160 parts, 59 parts of wet-milling limestone micropowder 5min is stirred in blender；
2) water of mass fraction 120 is uniformly mixed with 2.5 parts of both sexes water-reducing agents, pours into and stirs 2min in blender；
3) water of 80 parts of mass fraction is uniformly mixed with 2.5 parts of both sexes water-reducing agents and 5 parts of tetrabutylammonium bromide, with 60 parts
Micro-nano heat accumulation capsule pours into blender stirring 2min together, obtains mixture.
The applicant tests the performance of the concrete prepared by the various embodiments described above, and concrete outcome see the table below：
As seen from the table, concrete divergence prepared by the present invention is big, pressure-proof and snap-resistent intensity is high, non-evaporating support, has quite
High thermal storage performance.
Claims (6)
1. there is the preparation method of the non-evaporating foster ultra-high performance concrete prefabricated board of heat storage function, it is characterised in that：Specific steps are such as
Under：
1) by 1200-1250 parts of mass fraction fine aggregate, 540-640 parts of cement, wet-milling superfined flyash or wet-milling flyash 40-
50 parts, 50-100 parts of silicon ash, 150-180 parts of steel fibre, 50-60 parts of wet-milling limestone micropowder stir 5min in blender；
The micro-nano heat accumulation capsule is mineral crystal cyst wall, mechanical property>15 μ N, 20-25 DEG C of phase transition temperature, heat content>150J/
G, the capsule that grain size is 0.6-1 μm；
2) water of mass fraction 120-150 is uniformly mixed with 2.5-5 parts of water-reducing agents, pours into and stirs 2min in blender；
The water-reducing agent is the both sexes poly carboxylic acid series water reducer that water-reducing rate is not less than 40%；
3) water of 80-100 parts of mass fraction is uniformly mixed with 2.5-5 parts of water-reducing agents and 5-10 parts of tetrabutylammonium bromide, and it is micro-
50-100 parts of heat accumulation capsule of nanometer pours into blender stirring 2min together, obtains mixture；
The water-reducing agent is water-reducing rate>40% both sexes poly carboxylic acid series water reducer；
4) mixture obtained by step 3) is subjected to cloth；
5) step 4) institute cloth is conserved, maintenance reaches requirement to intensity, obtains ultra-high performance concrete prefabricated board.
2. the preparation method of the non-evaporating foster ultra-high performance concrete prefabricated board according to claim 1 for having a heat storage function,
It is characterized in that：Cement used in step 1) is 42.5 Portland cements, specific surface area 350-370m2/ kg, 28 days pressure resistances
Degree is not less than 48MPa.
3. the preparation method of the non-evaporating foster ultra-high performance concrete prefabricated board according to claim 1 for having a heat storage function,
It is characterized in that：Wet-milling superfined flyash used in step 1) is the common fine coal for being less than 2% to phosphorus content using wet-milling technology of preparing
Ash processing is made, 1-2 μm of grain size, solid content 50%.
4. the preparation method of the non-evaporating foster ultra-high performance concrete prefabricated board according to claim 1 for having a heat storage function,
It is characterized in that：Fine aggregate used in step 1) is the quartz sand that fineness modulus is 2.5-3.2.
5. the preparation method of the non-evaporating foster ultra-high performance concrete prefabricated board according to claim 1 for having a heat storage function,
It is characterized in that：：Length of steel fiber used in step 1) is 0.5-2mm, draw ratio 10:1-30:1.
6. the preparation method of the non-evaporating foster ultra-high performance concrete prefabricated board according to claim 1 for having a heat storage function,
It is characterized in that：The wet-milling agstone used in step 1) is the lime stone of the levigate processing of wet-milling technology of preparing, grain size 0.2-
0.6 μm, solid content 50%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734394A (en) * | 2019-01-09 | 2019-05-10 | 张正周 | A kind of high altitude localities saline-alkali tolerant concrete preparation process |
| CN115140966A (en) * | 2022-03-31 | 2022-10-04 | 湖北工业大学 | Concrete composition free of steam curing and concrete member |
| CN115403319A (en) * | 2022-09-29 | 2022-11-29 | 北科蕴宏环保科技(北京)有限公司 | Super-strong inorganic reinforcing material and preparation method thereof |
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| US20130048284A1 (en) * | 2011-08-31 | 2013-02-28 | Halliburton Energy Services, Inc. | Carbon dioxide-resistant portland based cement composition |
| CN103992773A (en) * | 2014-05-28 | 2014-08-20 | 北京化工大学常州先进材料研究院 | Bifunctional micro-encapsulation phase-change energy storage material with photo-catalysis property and preparation method thereof |
| CN104817302A (en) * | 2015-03-30 | 2015-08-05 | 南京倍立达新材料系统工程股份有限公司 | Phase change microcapsule temperature self-adjusting GRC dry-mixed mortar surface layer material |
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2018
- 2018-03-09 CN CN201810195711.7A patent/CN108409230A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130048284A1 (en) * | 2011-08-31 | 2013-02-28 | Halliburton Energy Services, Inc. | Carbon dioxide-resistant portland based cement composition |
| CN103992773A (en) * | 2014-05-28 | 2014-08-20 | 北京化工大学常州先进材料研究院 | Bifunctional micro-encapsulation phase-change energy storage material with photo-catalysis property and preparation method thereof |
| CN104817302A (en) * | 2015-03-30 | 2015-08-05 | 南京倍立达新材料系统工程股份有限公司 | Phase change microcapsule temperature self-adjusting GRC dry-mixed mortar surface layer material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734394A (en) * | 2019-01-09 | 2019-05-10 | 张正周 | A kind of high altitude localities saline-alkali tolerant concrete preparation process |
| CN115140966A (en) * | 2022-03-31 | 2022-10-04 | 湖北工业大学 | Concrete composition free of steam curing and concrete member |
| CN115403319A (en) * | 2022-09-29 | 2022-11-29 | 北科蕴宏环保科技(北京)有限公司 | Super-strong inorganic reinforcing material and preparation method thereof |
| CN115403319B (en) * | 2022-09-29 | 2023-09-15 | 北科蕴宏环保科技(北京)有限公司 | Super-strong inorganic reinforcing material and preparation method thereof |
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Application publication date: 20180817 |