CN108249869A - A kind of microcosmic Modeling Material of clear-water concrete - Google Patents
A kind of microcosmic Modeling Material of clear-water concrete Download PDFInfo
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- CN108249869A CN108249869A CN201711400183.6A CN201711400183A CN108249869A CN 108249869 A CN108249869 A CN 108249869A CN 201711400183 A CN201711400183 A CN 201711400183A CN 108249869 A CN108249869 A CN 108249869A
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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
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of microcosmic Modeling Materials of clear-water concrete, and including pulvis and liquor, wherein liquor accounts for the 7%~10% of pulvis weight；Pulvis is counted be made of following components in parts by weight：100 parts of cement, 58~62 parts of superfine silica powder, 70~80 parts of talcum powder, 140~160 parts of fine aggregate, 0.6~0.7 part of water-reducing agent, 0.05~0.06 part of swelling agent, 0.07~0.08 part of antifoaming agent, 0.05~0.06 part of thixotropic agent, 0.12~0.14 part of fiber；Liquor is counted be made of following components in parts by weight：1 part of polymer emulsion, 9 parts of water；Workability of the present invention, bond adhesion, glossiness and durability can reach it is homochromy with basis material homogeneity.
Description
Technical field
The present invention relates to building material technical fields, and in particular to a kind of microcosmic Modeling Material of clear-water concrete.
Background technology
With the quickening of urbanization paces, the beautification of city city appearance is increasingly paid attention to by society and government；Glass
Glass curtain wall, clear-water concrete and exterior coating are the main beautification means of modern metropolitan cities；Compared with glass curtain wall and exterior coating
It compares, clear-water concrete is economic and environment-friendly, and future will be in urban facilities fields such as city intersection, highway, high ferro station, airports
As building mainstream；Due to being mixed and stirred in concrete, construct, the links such as conserve and deviation occur, cause clear-water concrete occur aberration,
The defects of anti-alkali, blackspot, surface irregularity, the fissure of displacement, pitted skin hole；Meanwhile clear-water concrete is during service by sunlight, purple
The prolonged and repeated erosion such as outside line, acid rain, vehicle exhaust, greasy dirt, gradually occur colour fading aging, go mouldy, hollowing and cracks the problems such as；
With the development of the social economy, requirement of the people to city image is higher and higher, more and more Shimizu concrete building constructions will go out
The present each corner in city；For the open defect of Shimizu concrete building construction, the reparation of carry out science and protection are needed, it could be permanent
Keep its appearance elegance.
According to the investigation statistics to existing Shimizu concrete building construction and tracking, find clear-water concrete by construction quality,
Service Environment, Years Of Service influence gradually deteriorate；According to its degradation mechanism and Evolution, slight, moderate and severe should be divided into
Three degradation levels；It should be directed to the dimension that its appearance recovery, recovery of colour, protection and durability promote four levels respectively
Shield；Minor degradation is characterized as that protective agent adherency and water-proof function decline, and clear-water concrete appearance is dirty：Dipping, oil stain, blackspot,
Local ageing is faded；Concrete surface light spalling；Target is repaired as appearance recovery, recovery of colour；Moderate degradation is characterized as clearly
There is defect in serious dirty, the apparent aberration of water coagulation soil appearance, repair trace, dipping blackspot, large area aging, concrete surface
And localized delamination；Reparation target is appearance recovery, recovery of colour, protection；Severe deterioration is characterized as apparent concrete occur
Surface damage, large area peeling, crack-leakage and Exposed reinforcement；Reparation target for appearance recovery, recovery of colour, protection,
Durability is promoted.
Domestic profession clear-water concrete repair materials missing, it is expensive using imported material；Using the organic color of coating class
Slurry, initial performances are fine, by the military service of short time (1 year or so), hence it is evident that it is weak to expose colour fading, yellow and adhesion strength deficiency etc.
Point can not meet clear-water concrete appearance requirement；Using polymer black and white liquid cement colourant, appearance is reflective, it is apparent to repair trace；In addition,
Many mechanisms come from repairs profession, to clear-water concrete degradation mechanism and restore target understanding deficiency, the renovation technique taken is controlled
Mark do not effect a permanent cure, appearance luster can only be stopped to clear-water concrete reparation, to endurance issues caused by open defect often without
Can be power.
Existing restorative procedure is to repair rejected region using cement slurry, be easy to cause surface chromatic aberration, clear water is not achieved
The appearance requirement of concrete；The presence of aberration influences the appearance of concrete, and the appearance requirement of clear water mixed mud, table is not achieved
Decoration processing is done again and increases expense in face.
Invention content
The present invention provides a kind of workability, bonds homochromy clear of adhesion, glossiness and durability and basis material homogeneity
The microcosmic Modeling Material of water coagulation soil.
The technical solution adopted by the present invention is：A kind of microcosmic Modeling Material of clear-water concrete, including pulvis and liquor, wherein
Liquor accounts for the 7%~10% of pulvis weight；Pulvis is counted be made of following components in parts by weight：100 parts of cement, superfine silica powder 58
~62 parts, 70~80 parts of talcum powder, 140~160 parts of fine aggregate, 0.6~0.7 part of water-reducing agent, 0.05~0.06 part of swelling agent, disappear
0.07~0.08 part of infusion, 0.05~0.06 part of thixotropic agent, 0.12~0.14 part of fiber；Liquor is counted in parts by weight by with the following group
Divide and form：1 part of polymer emulsion, 9 parts of water.
Further, it is 1 in mass ratio that the cement, which is quick hardening sulphoaluminate cement and portland cement,:10~20 mixing
It forms.
Further, the polymer emulsion is modified carboxyl butadiene-styrene latex.
Further, the fine aggregate is one or two kinds of mixing of quartzy Machine-made Sand and river sand, and quartzy Machine-made Sand is maximum
Grain size is less than 1.18mm.
Further, the fiber is chopped for polypropylene, the length of 1.5~200mm.
Further, the swelling agent is calcium sulphoaluminate class swelling agent.
Further, the water-reducing agent is polycarboxylic acids powder water-reducing agent.
Further, the antifoaming agent is organic silicon antifoaming agent.
Further, the thixotropic agent is cellulose.
The beneficial effects of the invention are as follows：
(1) present invention is by being reasonably formulated maintenance and precuring suitable for clear-water concrete, using inorganic organic multiple
Condensation material fully considers concrete color and luster feature, and using matt formula, with the homochromy homogeneity of clear-water concrete after reparation, nothing is significantly
Repair trace；It can restore faced concrete surface finish；
(2) present invention it is easy to use, can solve faced concrete surface appearance point, line, surface the defects of；
(3) present invention has good filling, moulding, levelling, cohesive and durability, can reach the requirement of concrete reparation；
(4) present invention fully considers applies the protectant possibility of fluorine carbon after concrete reparation again, material have in itself with
The good adhesion of concrete, and also good attachment interface is provided for protective agent.
Specific embodiment
With reference to specific embodiment, the present invention will be further described.
A kind of microcosmic Modeling Material of clear-water concrete, including pulvis and liquor, wherein liquor account for pulvis weight 7%~
10%；Pulvis is counted be made of following components in parts by weight：100 parts of cement, 58~62 parts of superfine silica powder, talcum powder 70~80
Part, is touched 140~160 parts of fine aggregate, 0.6~0.7 part of water-reducing agent, 0.05~0.06 part of swelling agent, 0.07~0.08 part of antifoaming agent
Become 0.05~0.06 part of agent, 0.12~0.14 part of fiber；Liquor is counted be made of following components in parts by weight：Polymer emulsion 1
Part, 9 parts of water.
Further, it is 1 in mass ratio that the cement, which is quick hardening sulphoaluminate cement and portland cement,:10~20 mixing
It forms；Portland cement is Portland cement, strength grade PO42.5R；Quick hardening sulphoaluminate cement is 42.5 grades
Quick hardening sulphoaluminate cement；Specific proportioning is determined according to clear-water concrete structures repair time and environment temperature.
Further, the polymer emulsion is modified carboxyl butadiene-styrene latex.
Further, the fine aggregate is one or two kinds of mixing of quartzy Machine-made Sand and river sand, and quartzy Machine-made Sand is maximum
Grain size is less than 1.18mm.
Further, the fiber is chopped for polypropylene, the length of 1.5~200mm.
Further, the swelling agent is calcium sulphoaluminate class swelling agent.
Further, the water-reducing agent is polycarboxylic acids powder water-reducing agent.
Further, the antifoaming agent is organic silicon antifoaming agent.
Further, the thixotropic agent is cellulose.
Embodiment 1：
A kind of microcosmic Modeling Material of clear-water concrete, including pulvis and liquor, wherein liquor accounts for the 10% of pulvis weight；Powder
Agent is made of by mass following components：Strength grade be 320 kilograms of the Portland cement of PO42.5R, 42.5 grades it is fast
20 kilograms of hardening sulphoaluminate cement, 20 kilograms of the superfine silica powder of 500 mesh, 30 kilograms of the talcum powder of 325 mesh, 40~80 mesh quartz
75 kilograms of Machine-made Sand, 495 kilograms of the river sand of 1.8mm fineness, 2.1 kilograms of polycarboxylic acids powder water-reducing agent, plasticity calcium sulphoaluminate class are swollen
Swollen dose 0.2 kilogram, 0.3 kilogram of organic silicon defoamer, 0.2 kilogram of hydroxypropyl methyl cellulose thixotropic agent；Liquor by weight by
Following components is formed：10 kilograms of modified carboxyl butadiene-styrene latex, 90 kilograms of water.
In use, above-mentioned raw materials are uniformly mixed can carry out clear-water concrete open defect (pitted skin, cavity) into
Row is repaired.
The microcosmic Modeling Material technical requirement of clear-water concrete is as shown in table 1：
The microcosmic Modeling Material technical indicator of 1 clear-water concrete of table
The microcosmic Modeling Material of the clear-water concrete of the present embodiment is examined according to the test method described in table 1 and project
It surveys, operable time can be obtained as 100min, application property is easily construction, and final setting time is 9 hours, expansion rate 0.2%, the anti-foldings of 7d
Intensity is 4.7MPa, and 28d flexural strengths are 6.4MPa, and 7d compression strength is 13.2MPa, and 28d compression strength is 36.8MPa, 7d
Adhesion strength is 3.2MPa, and 7d (wet) adhesion strength is 2.4MPa, and 7d (boils) adhesion strength as 1.7MPa, and 28d adhesion strengths are
3.4MPa, elasticity modulus (28d) are 18650MPa, and water absorption rate 0.8%, impermeability pressure 2.1MPa, heat resistance is in detector bar
Without peeling, cracking phenomena under part, frost resistance is under 300 times, the above-mentioned testing conditions of 28d without peeling and cracking phenomena；Alkali resistance exists
Without peeling and cracking phenomena under above-mentioned testing conditions.
Embodiment 2：
A kind of microcosmic Modeling Material of clear-water concrete, including pulvis and liquor, wherein liquor accounts for the 7% of pulvis weight；Powder
Agent is made of by mass following components：Strength grade be 320 kilograms of the Portland cement of PO42.5R, 42.5 grades it is fast
30 kilograms of hardening sulphoaluminate cement, 20 kilograms of the superfine silica powder of 500 mesh, 30 kilograms of the talcum powder of 325 mesh, 40~80 mesh quartz
55 kilograms of Machine-made Sand, 495 kilograms of the river sand of 1.8mm fineness, 2.1 kilograms of polycarboxylic acids powder water-reducing agent, plasticity calcium sulphoaluminate class are swollen
Swollen dose 0.2 kilogram, 0.3 kilogram of organic silicon defoamer, 0.25 kilogram of hydroxypropyl methyl cellulose thixotropic agent；Liquor by weight by
Following components is formed：12 kilograms of modified carboxyl butadiene-styrene latex, 88 kilograms of water.
In use, above-mentioned raw materials, which are uniformly mixed, can carry out clear-water concrete open defect (crest line missing) progress
It repairs.
The microcosmic Modeling Material of the clear-water concrete of the present embodiment is examined according to the test method described in table 1 and project
It surveys, operable time can be obtained as 100min, application property is easily construction, and final setting time is 8.5 hours, and expansion rate 0.1%, 7d resists
Folding intensity is 4.8MPa, and 28d flexural strengths are 6.6MPa, and 7d compression strength is 15.2MPa, and 28d compression strength is 32.2MPa,
7d adhesion strengths are 3.3MPa, and 7d (wet) adhesion strength is 2.4MPa, and 7d (boils) adhesion strength as 1.8MPa, 28d adhesion strengths
For 3.2MPa, elasticity modulus (28d) is 19250MPa, water absorption rate 0.8%, impermeability pressure 2.2MPa, and heat resistance is detecting
Under the conditions of without peel off, cracking phenomena, frost resistance under 300 times, the above-mentioned testing conditions of 28d without peel off and cracking phenomena；Alkali resistance
Without peeling and cracking phenomena under above-mentioned testing conditions.
Embodiment 3：
A kind of microcosmic Modeling Material of clear-water concrete, including pulvis and liquor, wherein liquor accounts for the 8% of pulvis weight；Powder
Agent is made of by mass following components：Strength grade be 320 kilograms of the Portland cement of PO42.5R, 42.5 grades it is fast
15 kilograms of hardening sulphoaluminate cement, 20 kilograms of the superfine silica powder of 500 mesh, 30 kilograms of the talcum powder of 325 mesh, 40~80 mesh quartz
55 kilograms of Machine-made Sand, 465 kilograms of the river sand of 1.8mm fineness, 2.1 kilograms of polycarboxylic acids powder water-reducing agent, plasticity calcium sulphoaluminate class are swollen
Swollen dose 0.2 kilogram, 0.3 kilogram of organic silicon defoamer, 0.25 kilogram of hydroxypropyl methyl cellulose thixotropic agent；Liquor by weight by
Following components is formed：10 kilograms of modified carboxyl butadiene-styrene latex, 90 kilograms of water.
In use, above-mentioned raw materials are uniformly mixed can carry out clear-water concrete open defect (crack, cold seam) into
Row is repaired.
The microcosmic Modeling Material of the clear-water concrete of the present embodiment is examined according to the test method described in table 1 and project
It surveys, operable time can be obtained as 110min, application property is easily construction, and final setting time is 10.5 hours, expansion rate 0.1%, 7d
Flexural strength is 4.7MPa, and 28d flexural strengths are 6.7MPa, and 7d compression strength is 15.1MPa, and 28d compression strength is
32.5MPa, 7d adhesion strength are 3.2MPa, and 7d (wet) adhesion strength is 2.5MPa, and 7d (boils) adhesion strength as 1.9MPa, 28d
Adhesion strength is 3.4MPa, and elasticity modulus (28d) is 18740MPa, water absorption rate 0.8%, impermeability pressure 2.1MPa, heat-resisting
Property under testing conditions without peel off, cracking phenomena, frost resistance is at 300 times, without peeling off and cracking is existing under the above-mentioned testing conditions of 28d
As；Alkali resistance is under above-mentioned testing conditions without peeling and cracking phenomena.
The microcosmic Modeling Material of clear-water concrete prepared by the embodiment of the present invention according to the test method described in table 1 and project into
Row detection is qualification；The microcosmic Modeling Material of clear-water concrete prepared by above-described embodiment reaches requirement；The present invention is directed to clear water
The defects of for example cold seam of concrete appearance geometrical defect, crack, develops；For clear-water concrete stripping chip off-falling, crest line missing, sand holes,
Laitance, the fissure of displacement, pitted skin hole, hollowing inequality Typical apparent defect, implement defect fill up, flatness recovery, crest line moulding, spy
The techniques such as different moulding recovery；The processing of filling a vacancy of faced concrete surface appearance point, line knead dough is solved, there is good moulding, glue
Knot and durability, can restore faced concrete surface finish；With good filling, moulding, levelling, cohesive and durable
Property, the requirement of concrete reparation can be reached.
The present invention fully considers concrete color and luster feature using organic-inorganic composite material, using matt formula, after reparation
With the homochromy homogeneity of clear-water concrete, nothing significantly repaiies trace；The protectant possibility of fluorine carbon is applied again after fully considering concrete reparation,
Material have in itself with the good adhesion of concrete, and also provide good attachment interface for protective agent；By reasonable
Adjust polymer emulsion, cement, filler and auxiliary agent type and ratio so that when rheological behavior of the invention, malleable and curing
Between can reach design requirement, you can reach the requirement of the microcosmic Modeling Material technical indicator of clear-water concrete；In workability, bonding
It can be homochromy with basis material homogeneity in terms of adhesion, glossiness and durability；Material of the present invention has been used for No. 7 lines of Chengdu subway
Cui Jia shops parking lot, and obtain preferable effect.
Claims (9)
1. a kind of microcosmic Modeling Material of clear-water concrete, which is characterized in that including pulvis and liquor, wherein liquor accounts for pulvis weight
7%~10%；Pulvis is counted be made of following components in parts by weight：100 parts of cement, 58~62 parts of superfine silica powder, talcum powder
70~80 parts, 140~160 parts of fine aggregate, 0.6~0.7 part of water-reducing agent, 0.05~0.06 part of swelling agent, antifoaming agent 0.07~
0.08 part, 0.05~0.06 part of thixotropic agent, 0.12~0.14 part of fiber；Liquor is counted be made of following components in parts by weight：It is poly-
Close 1 part of object lotion, 9 parts of water.
2. the microcosmic Modeling Material of a kind of clear-water concrete according to claim 1, which is characterized in that the cement is fast hard
Sulphate aluminium cement and portland cement are 1 in mass ratio:10~20 mixing are formed.
A kind of 3. microcosmic Modeling Material of clear-water concrete according to claim 1, which is characterized in that the polymer emulsion
For modified carboxyl butadiene-styrene latex.
4. the microcosmic Modeling Material of a kind of clear-water concrete according to claim 1, which is characterized in that the fine aggregate is stone
One or two kinds of mixing of English Machine-made Sand and river sand, quartzy Machine-made Sand maximum particle diameter are less than 1.18mm.
5. the microcosmic Modeling Material of a kind of clear-water concrete according to claim 1, which is characterized in that the fiber is poly- third
Alkene is chopped, the length of 1.5~200mm.
6. the microcosmic Modeling Material of a kind of clear-water concrete according to claim 1, which is characterized in that the swelling agent is sulphur
Calcium aluminate type expansion agent.
7. the microcosmic Modeling Material of a kind of clear-water concrete according to claim 1, which is characterized in that the water-reducing agent is poly-
Carboxylic acid powder water-reducing agent.
8. the microcosmic Modeling Material of a kind of clear-water concrete according to claim 1, which is characterized in that the antifoaming agent is has
Machine silicon class antifoaming agent.
9. the microcosmic Modeling Material of a kind of clear-water concrete according to claim 1, which is characterized in that the thixotropic agent is fibre
Dimension element.
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| CN201711400183.6A CN108249869A (en) | 2017-12-22 | 2017-12-22 | A kind of microcosmic Modeling Material of clear-water concrete |
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| CN201711400183.6A CN108249869A (en) | 2017-12-22 | 2017-12-22 | A kind of microcosmic Modeling Material of clear-water concrete |
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| CN109503066A (en) * | 2018-11-19 | 2019-03-22 | 青岛崇置混凝土工程有限公司 | A kind of clear-water concrete and preparation method thereof |
| CN112552002A (en) * | 2020-12-09 | 2021-03-26 | 上海唐臻园林建筑工程有限公司 | Repairing powder for exterior facade of building brick wall and repairing process thereof |
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Application publication date: 20180706 |