CN110330292A - Blast furnace cement concrete joint material - Google Patents
Blast furnace cement concrete joint material Download PDFInfo
- Publication number
- CN110330292A CN110330292A CN201910602925.6A CN201910602925A CN110330292A CN 110330292 A CN110330292 A CN 110330292A CN 201910602925 A CN201910602925 A CN 201910602925A CN 110330292 A CN110330292 A CN 110330292A
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- cement concrete
- concrete joint
- weight
- joint material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
- C04B2111/00672—Pointing or jointing materials
-
- 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
Abstract
A kind of blast furnace cement concrete joint material, including following raw material: portland cement, sulphate aluminium cement, dihydrate gypsum, clinker, redispersable latex powder, methyl cellulose ether and basalt fibre.Compared with prior art, blast furnace cement concrete joint material of the invention there is cure shrinkage to be worth small or microdilatancy, adhesion strength high, and not crack, the easy high feature of construction and construction efficiency.
Description
Technical field
The present invention relates to wallboard joints material fields, and in particular to a kind of blast furnace cement concrete joint material.
Background technique
Wallboard industry development be unable to do without the development of joint filler.Currently, joint filler mostly uses sealant, for concrete material
Material, cementability of the common sealant on its surface is not easy to realize, this is because concrete is a kind of porous material,
The size of hole and it is unevenly distributed the bonding for being unfavorable for sealant；And concrete itself is in alkalinity, is especially inhaled in substrate
When water, partial alkaline substance can move to the interface of sealant and concrete contact, to influence to be bonded.It would therefore be highly desirable to develop
A kind of adhesion strength is high, and microdilatancy, does not shrink, the indehiscent joint filler of seam.
Clinker contains 40%-50%SiO2, 30%-35%Al2O3, 4%-20%Fe2O3, 1%-5%CaO, mineral group
At having anorthite, quartz, mullite, magnetic iron ore, pyrite, a large amount of siliceous vitreum (Al2O3·2SiO2), activity SiO2、
Active Al2O3Deng.Therefore, for its ingredient and mineral composition, clinker is not waste to no avail, and such is useless
Slag China be distributed it is very wide, how to carry out clinker exploitation, turn waste into wealth, realizes clinker recycling become one newly have
Project.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of solid to overcome the above problem of the existing technology
Change that shrinkage value is small or microdilatancy, adhesion strength be high, and do not crack, the easily high blast furnace cement concrete of construction and construction efficiency connects
Sewing.
The technical solution used to solve the technical problems of the present invention is that a kind of blast furnace cement concrete joint material, including with
Lower raw material: portland cement, sulphate aluminium cement, dihydrate gypsum, clinker, redispersable latex powder, methyl cellulose ether and profound
Military rock fiber.
In the present invention, portland cement improves basis material intensity as basis material.
In the present invention, sulphate aluminium cement is only used at 0 DEG C of low temperature or so as early strength agent.
In the present invention, dihydrate gypsum can solve the problems, such as lower shrinkage as expansion regulator.
In the present invention, redispersable latex powder is used to improve adhesion strength and cohesive force.
In the present invention, methyl cellulose ether is used to improve joint filler water-retaining property.
In the present invention, basalt fibre can guarantee that joint filler does not crack.
In the present invention, clinker is a part of composite material, plays filler effect.When external force is when composite material,
It plays resistance to deformation and destruction together with cellulose, cement jointly.
Further, which includes that the raw material of following parts by weight is made: 106 parts by weight of portland cement, sulphur aluminic acid
Salt cement 10-24 parts by weight, dihydrate gypsum 6-6.5 parts by weight, clinker 260-350 parts by weight, redispersable latex powder 0.6-
1.0 parts by weight, methyl cellulose ether 0.6-1.0 parts by weight and basalt fibre 0.6-1.0 parts by weight.
Further, the portland cement is 42.5 ordinary portland cements.
Further, the redispersable latex powder is selected from copolymer, the vinyl acetate/versatic acid of ethylene/vinyl acetate
Ethylene copolymer or acrylic copolymer.
Further, the granularity of the clinker is 0-2mm, and adhesion strength is high, workability is good, easy construction, shrinkage compare miberal powder
It is small with cement, and not hollowing, do not crack.
Further, the diameter of the basalt fibre is 5-10 μm, length 3-5mm.
Under preferable case, a kind of preparation method of blast furnace cement concrete joint material, comprising the following steps: by silicate
Cement, sulphate aluminium cement, dihydrate gypsum, clinker, redispersable latex powder, methyl cellulose ether and basalt fibre stirring
Uniformly, packaging.
In the present invention, the construction method of blast furnace cement concrete joint material is connect using thin limed construction method
The construction of sewing.
Compared with prior art, blast furnace cement concrete joint material of the invention is using coal-fired clinker as main lightweight bone
Material, for portland cement as cementitious material basis material, sulphate aluminium cement makees early strength agent, and dihydrate gypsum is adjusted as expansion
Agent, redispersable latex powder improve adhesion strength and cohesive force, and methyl cellulose ether improves joint filler water-retaining property, and basalt is fine
Maintenance card joint filler does not crack, and small or microdilatancy, adhesion strength height can be worth with cooperative achievement cure shrinkage, and do not crack, easily
Construction and the high feature of construction efficiency.
Specific embodiment
The present invention will be described in detail by way of examples below.In following embodiment,
Blast furnace cement concrete joint material mechanical property (including bending strength, compression strength, coefficient of softing, bonding are strong
Degree) it is measured with reference to following method:
Flexural strength test
In formula, R- flexural strength (MPa)
F- failing load (N)
L- fixture pivot distance (1600mm)
The width (40mm) of b- mortar specimen
The height (40mm) of h- mortar specimen
The compression strength of mortar is calculated as follows:
In formula, RCCompression strength (MPa)
F- failing load (N)
A- test specimen bearing area (mm2)
Adhesion strength measurement:
In formula, adhesion strength (MPa) that when σ-stretching generates
AtBond area (mm2)
F- peak load (N)
Coefficient of softing measurement:
In formula, δ-test specimen coefficient of softing
σDry strengthThe dry compressive strength of test specimen
σWet strengthThe Wet Compression intensity of test specimen
The setting time of mortar can determine as follows:
1. the determination gram of setting time uses diagrammatic representation or interpolation method, it should be subject to diagrammatic representation when disputable.It is stirred from Jia Shui
Mix beginning timing, record time and corresponding penetration resistance value respectively, according to the penetration resistance value in test gained each stage and when
Between relationship draw, the required time t that penetration resistance value reaches 0.5MPa is found out by figure1(min), t at this time1Value is mortar
Presetting period measured value.The required time t that penetration resistance value reaches 5MPa is found out by figure2(min), t at this time2Value is sand
The final setting time measured value of slurry.
2. measure mortar coagulation time, two samples should be taken, in same disk with the arithmetic mean of instantaneous value of two test results
As the setting time measured value of the mortar, test result error should not exceed 30min twice, otherwise should redeterminate.
In case of no particular description, raw materials used to be all made of above-mentioned commercial product.
Embodiment 1
Blast furnace cement concrete joint material includes the raw material of following parts by weight: 42.5 106 grams of ordinary portland cements,
10.6 grams of sulphate aluminium cement, 6.2 grams of dihydrate gypsum, granularity are 200 grams of the clinker of 2.00mm, redispersable latex powder (second
Alkene/vinylacetate copolymer) 0.8 gram, 0.8 gram of methyl cellulose ether, diameter be 5 μm, length is 5mm basalt fibre
0.8 gram.
The preparation method of blast furnace cement concrete joint material is that above-mentioned raw materials are mixed evenly, packaging.
Embodiment 2
Blast furnace cement concrete joint material is prepared according to the preparation method of embodiment 1, unlike, blast furnace cement coagulation
Native joint filler includes the raw material of following parts by weight: 42.5 106 grams of ordinary portland cements, and 10.6 grams of sulphate aluminium cement, two
6.1 grams of water gypsum, granularity is 0mm < 200 grams of granularity < 2mm clinker, redispersable latex powder (vinyl acetate/versatic acid second
Alkene copolymer) 0.7 gram, 0.7 gram of methyl cellulose ether, diameter is 6 μm, length is 0.7 gram of 4mm basalt fibre.
Embodiment 3
Blast furnace cement concrete joint material is prepared according to the preparation method of embodiment 1, unlike, blast furnace cement coagulation
Native joint filler includes the raw material of following parts by weight: 42.5 106 grams of ordinary portland cements, and 10.6 grams of sulphate aluminium cement, two
6.3 grams of water gypsum, granularity is 0mm < 200 grams of granularity < 2mm clinker, redispersable latex powder (acrylic copolymer) 0.9
Gram, 0.9 gram of methyl cellulose ether, diameter is 7 μm, length is 0.9 gram of 3mm basalt fibre.
Embodiment 4
Blast furnace cement concrete joint material is prepared according to the preparation method of embodiment 1, unlike, blast furnace cement coagulation
Native joint filler includes the raw material of following parts by weight: 42.5 106 grams of ordinary portland cements, and 10.6 grams of sulphate aluminium cement, two
6.5 grams of water gypsum, granularity is 200 grams of clinker of 2mm, redispersable latex powder (copolymer of ethylene/vinyl acetate) 0.6
Gram, 0.6 gram of methyl cellulose ether, diameter is 8 μm, length is 0.6 gram of 5mm basalt fibre.
Embodiment 5
Blast furnace cement concrete joint material is prepared according to the preparation method of embodiment 1, unlike, blast furnace cement coagulation
Native joint filler includes the raw material of following parts by weight: 42.5 106 grams of ordinary portland cements, and 10.6 grams of sulphate aluminium cement, two
6 grams of water gypsum, granularity is 2000 grams of clinker of 2mm, redispersable latex powder (copolymer of ethylene/vinyl acetate) 1.0
Gram, 1.0 grams of methyl cellulose ether, diameter is 10 μm, length is 1.0 grams of 5mm basalt fibre.
Embodiment 6
Blast furnace cement concrete joint material is prepared according to the preparation method of embodiment 1, unlike, blast furnace cement coagulation
Native joint filler includes the raw material of following parts by weight: 42.5 106 grams of ordinary portland cements, and 10.6 grams of sulphate aluminium cement, two
6.2 grams of water gypsum, granularity is 2000 grams of clinker of 2mm, redispersable latex powder (copolymer of ethylene/vinyl acetate)
0.65 gram, 0.65 gram of methyl cellulose ether, diameter is 5 μm, length is 0.65 gram of 5mm basalt fibre.
Test case
Measure the first of cement base fire coal clinker lightweight plastering mortar made from embodiment 1-5, final setting time, test result
It is shown in Table 1.Cement concrete joint filler made from embodiment 1-5 is separately added into 6 grams of water-reducing agent, 63 grams of water, is then stirred, is used
Three gang moulds have castable, demould within 4 hours, are shaped to 40mm × 40mm × 160mm sample, test intensity after 6 days, every time
Forming 3, calculates separately the corresponding parameter of sample with above-mentioned formula (1), (2), (3), (4), the results are shown in Table 1.
Table 1
| Embodiment number | Presetting period | Final setting time | Compression strength | Bending strength | Coefficient of softing | Adhesion strength |
| Embodiment 1 | 200.2min | 220.5min | 13.2MPa | 4.8MPa | 0.80% | 0.22MPa |
| Embodiment 2 | 198.2min | 214.2min | 13.2MPa | 4.6MPa | 0.80% | 0.21MPa |
| Embodiment 3 | 172.3min | 210.5min | 13.6MPa | 5.0MPa | 0.81% | 0.22MPa |
| Embodiment 4 | 180.0min | 215.3min | 13.9MPa | 4.9MPa | 0.82% | 0.23MPa |
| Embodiment 5 | 175.0min | 216.3min | 13.5MPa | 4.7MPa | 0.80% | 0.21MPa |
| Embodiment 6 | 285.1min | 315.5min | 10.1MPa | 3.3MPa | 0.81% | 0.20MPa |
Can be seen that by the result of table 1 has quick solidifying, intensity high using the present invention.Especially embodiment 3-5's
Early epistasis is more significant.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.Of the invention
, can be with various simple variants of the technical solution of the present invention are made in range of the technology design, including each technical characteristic is with any
Other suitable methods are combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, are belonged to
In protection scope of the present invention.
Claims (6)
1. a kind of blast furnace cement concrete joint material, which is characterized in that the cement concrete joint filler joint filler includes following original
Material: portland cement, sulphate aluminium cement, dihydrate gypsum, clinker, redispersable latex powder, methyl cellulose ether and basalt
Fiber.
2. blast furnace cement concrete joint material according to claim 1, which is characterized in that the joint filler includes following weight
The raw material of number is made: 106 parts by weight of portland cement, sulphate aluminium cement 10-24 parts by weight, dihydrate gypsum 6-6.5 weight
Part, clinker 260-350 parts by weight, redispersable latex powder 0.6-1.0 parts by weight, methyl cellulose ether 0.6-1.0 parts by weight and
Basalt fibre 0.6-1.0 parts by weight.
3. blast furnace cement concrete joint material according to claim 1 or 2, which is characterized in that the portland cement is
42.5 ordinary portland cements.
4. blast furnace cement concrete joint material according to claim 1 or 2, which is characterized in that the Redispersable latex
Powder is selected from copolymer, vinyl acetate/versatic acid ethylene copolymer or the acrylic copolymer of ethylene/vinyl acetate.
5. blast furnace cement concrete joint material according to claim 1 or 2, which is characterized in that the granularity of the clinker is
0-2mm。
6. blast furnace cement concrete joint material of any of claims 1 or 2, which is characterized in that the diameter of the basalt fibre
It is 5-10 μm, length 3-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602925.6A CN110330292A (en) | 2019-07-04 | 2019-07-04 | Blast furnace cement concrete joint material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910602925.6A CN110330292A (en) | 2019-07-04 | 2019-07-04 | Blast furnace cement concrete joint material |
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| CN110330292A true CN110330292A (en) | 2019-10-15 |
Family
ID=68144323
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057823A (en) * | 1990-07-03 | 1992-01-15 | 北京市朝阳区华通工业新技术研究所 | Cinder-fibre light concrete |
| CN103649006A (en) * | 2011-07-01 | 2014-03-19 | 瓦克化学股份公司 | Gypsum-containing construction material compounds |
| CN103896538A (en) * | 2013-11-11 | 2014-07-02 | 东南大学 | Cement-based ultraviolet-proof tile joint mixture |
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| CN107200529A (en) * | 2017-05-26 | 2017-09-26 | 深圳港创建材股份有限公司 | A kind of mortar joint and preparation method thereof |
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-
2019
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| CN107200529A (en) * | 2017-05-26 | 2017-09-26 | 深圳港创建材股份有限公司 | A kind of mortar joint and preparation method thereof |
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Application publication date: 20191015 |