CN105837118A - Environmentally-friendly flexible self-healing waterproof curtain and production method thereof - Google Patents
Environmentally-friendly flexible self-healing waterproof curtain and production method thereof Download PDFInfo
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- CN105837118A CN105837118A CN201610205987.XA CN201610205987A CN105837118A CN 105837118 A CN105837118 A CN 105837118A CN 201610205987 A CN201610205987 A CN 201610205987A CN 105837118 A CN105837118 A CN 105837118A
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/10—Clay
- C04B14/104—Bentonite, e.g. montmorillonite
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00051—Mortar or concrete mixtures with an unusual low cement content, e.g. for foundations
- C04B2111/0006—Mortar or concrete mixtures with an unusual low cement content, e.g. for foundations for obtaining materials with the consistency of soil
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00224—Green materials, e.g. porous green ceramic preforms
-
- 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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00293—Materials impermeable to liquids
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the field of building construction, and especially relates to a flexible self-healing waterproof curtain. Raw materials of the waterproof curtain comprise water, bentonite, cement, fly ash, a dispersant and a water reducing retarder according to a mass ratio of 100:(30-60):(3-7):(5-10):(0.5-1):(0.5-1). A production method of the waterproof curtain comprises the following steps: sequentially adding water, cement, fly ash, the dispersant, the retarder and bentonite, and mixing the raw materials to obtain the flexible self-healing waterproof curtain mixture. The flexible self-healing waterproof curtain obtained in the invention has the advantages of good waterproof effect, adjustable strength, realization of rapid self-healing when meeting water after cracking, low cost, convenient construction and environmental protection.
Description
Technical field
The present invention relates to the realm of building construction, particularly relate to a kind of environment-friendly type self-repairing flexible and close water-stop curtain and preparation method thereof.
Background technology
Water-stop curtain is current a kind of common method when excavation to groundwater treatment, and its main purpose is to cut off
Subsoil water in the foundation ditch periphery soil body and the hydraulic connection in excavation of foundation pit region, mainly pass through mixing plant by admixture (cement)
It is sufficiently stirred for the soil body so that the soil body possesses required impervious, every the effect of oozing.What currently used cement admixture was formed stops
Water curtain it possess certain intensity (inflexibility).
But in the special constructional technique such as open caisson caisson method, not only need to use water-stop curtain sealing, and building sinking watching
Middle cutting shoe needs cutting soil.Therefore, existing water-stop curtain intensity is of a relatively high, can cause the biggest to the sinking of top-out
Resistance, impact construction.
Summary of the invention
The technical problem to be solved is the deficiency existed for above-mentioned prior art and provides a kind of environment-friendly type self-repairing flexible
Close water-stop curtain, deform with the deformation of the soil body under external force, constantly, do not split, and there is self-healing function, playing
While sealing effect, reduce building incision resistance, be beneficial to steadily move down.
The present invention solves that the technical scheme that problem set forth above is used is:
A kind of self-repairing flexible closes water-stop curtain, and its raw material includes water, bentonite, cement, flyash, dispersant, water-reducing, slow-settling
Agent.
By such scheme, described each raw water, bentonite, cement, flyash, dispersant, water-reducing and set-retarding admixture mass ratio are
100:(30～60): (3～7): (5～10): (0.5～1): (0.5～1).
In such scheme, described dispersant is one or more mixing in any proportion in sodium carbonate, potassium carbonate, soda etc.
Thing.
In such scheme, described retarder is concrete retarding water reducer, and it is wooden that it is mainly composed of polyol, high sugar
One or more mixture in any proportion in element sulfonic acid, inorganic salt etc..
By such scheme, described bentonitic mesh number is higher than 200 mesh.
Above-mentioned self-repairing flexible close water-stop curtain mixture preparation method, according to feeding sequence be: water, cement, flyash, point
Powder, retarder, bentonite, mix each raw material according to said ratio, i.e. can get self-repairing flexible and closes water-stop curtain mix
Thing.Preferably, during described mixing, can use stirring, mixing speed is 60～150r/min, and mixing time is 5～8min.
Above-mentioned gained mixture can carry out pumping construction by concrete pump, and then obtains self-repairing flexible conjunction water-stop curtain.
Compared with prior art, the invention has the beneficial effects as follows:
Water-stop curtain of the present invention has relatively low comprcssive strength and higher infiltration coefficient, and its 28 days comprcssive strength are only
0.1～0.3MPa, infiltration coefficient is 1 × 10-6～10 × 10-6cm/s。
Compared with prior art, the invention has the beneficial effects as follows:
Water-stop curtain the most of the present invention jelly plastic and flexible body is composed and is stored in underground, under external force with the deformation of the soil body
And deform, constantly, do not split, and there is self-healing function, by suitable allotment bentonite and cement, the ratio of flyash, can
Even if make water-stop curtain be dehydrated dry and cracked after, meet water can rapid self-heal, and possess the effect of conventional common curtain, the most anti-
Ooze, every the effect of oozing.
2, intensity of the present invention and anti-shear performance are relatively low, are meeting on the basis of human body can stand on it and depression not occur, by force
Spend the least, in order in building folding process, building down through soil body scope pre-set and be wider than thickness of wall body
Flexibility can cut water-stop curtain, cutting shoe flexibility can cut in water-stop curtain can uniformly incision, playing the same of sealing effect
Time, reduce building incision resistance, be beneficial to steadily move down.
3, the present invention utilizes bentonitic water swellability, as flexible sealing material, and by cement, flyash
Adjusting the intensity of water-stop curtain, formation stagnant water effect is good, the adjustable flexibility of intensity can cut water-stop curtain.
4. the present invention uses few cement, decreases the water-stop curtain impact on soil, and uses industrial residue flyash,
There is preferable environment protecting；Compared with conventional water-stop curtain, the present invention has with low cost, convenient, environmental protection etc. of constructing
Advantage.
Detailed description of the invention
In order to be more fully understood that the present invention, it is further elucidated with present disclosure below in conjunction with embodiment, but the present invention not only office
It is limited to the following examples.
Embodiment 1
A kind of self-repairing flexible closes water-stop curtain, and its raw material includes water, bentonite, cement, flyash, dispersant, water-reducing, slow-settling
Agent, wherein, bentonite fineness is the sodium bentonite of 200 mesh, and cement uses P II 42.5 portland cement, and flyash is
I grade of flyash, dispersant uses industrial sodium carbonate, and each material mixture ratio is as shown in table 1 (unit: kg).
Table 1
| Water | Bentonite | Cement | Flyash | Sodium carbonate | Retardation water reducing agent |
| 1000 | 500 | 50 | 50 | 7.5 | 5 |
Above-mentioned self-repairing flexible closes the preparation method of water-stop curtain mixture, uses horizontal forced stirrer to be stirred, feeding sequence
For water, cement, flyash, sodium carbonate, slowing down solidifying water preparation, bentonite, blender rotating speed is that 90r/min stirs 5min, i.e.
Available self-repairing flexible closes water-stop curtain mixture mud.
It is preferable that gained self-repairing flexible closes water-stop curtain mixture slip fluidity, can Self-leveling, the working time reach 3 hours with
On；Unit weight is 1.4g/cm3, concrete pump can be used to carry out pumping construction, obtain self-repairing flexible and close water-stop curtain.This sealing curtain
Under curtain intensity test is as shown in table 2, and this water-stop curtain has preferable water sealing and seepage resistane performance, and within 28 days, infiltration coefficient reaches
To 7 × 10-6cm/s。
Table 2
| 3d | 7d | 14d | 28d | 120d |
| 0.04MPa | 0.07MPa | 0.13MPa | 0.21MPa | 0.23MPa |
Embodiment 2
A kind of self-repairing flexible closes water-stop curtain, and its raw material includes water, bentonite, cement, flyash, dispersant, water-reducing, slow-settling
Agent, wherein, bentonite fineness is the calcium-base bentonite of 200 mesh, and cement uses portland cement, and flyash is I grade of fine coal
Ash, dispersant uses industrial sodium carbonate, and each material mixture ratio is as shown in table 3 (unit: kg).
Table 3
| Water | Bentonite | Cement | Flyash | Sodium carbonate | Retardation water reducing agent |
| 1000 | 600 | 30 | 100 | 10 | 5 |
Above-mentioned self-repairing flexible closes the preparation method of water-stop curtain, uses mortar mixer to be stirred, and feeding sequence is water, water
Mud, flyash, sodium carbonate, slowing down solidifying water preparation, bentonite, blender rotating speed is that 60r/min stirs 8min, i.e. can get soft
Property self-healing water-stop curtain mixture mud.
It is preferable that gained self-repairing flexible closes water-stop curtain mixture slip fluidity, can Self-leveling, the working time reach 4 hours with
On；Unit weight is 1.35g/cm3, concrete pump can be used to carry out pumping construction, obtain self-repairing flexible and close water-stop curtain.This sealing
Curtain 28d comprcssive strength is 0.15MPa, and this water-stop curtain has preferable water sealing and seepage resistane performance, and within 28 days, infiltration coefficient reaches
5.7×10-6cm/s。
Embodiment 3
A kind of self-repairing flexible closes water-stop curtain, and its raw material includes water, bentonite, cement, flyash, dispersant, water-reducing, slow-settling
Agent, wherein, bentonite fineness is the calcium-base bentonite of 200 mesh, and cement uses portland cement, and flyash is I grade of fine coal
Ash, dispersant uses industrial sodium carbonate, and each material mixture ratio is as shown in table 4 (unit: kg).
Table 4
| Water | Bentonite | Cement | Flyash | Sodium carbonate | Retardation water reducing agent |
| 1000 | 300 | 70 | 80 | 5 | 10 |
Above-mentioned self-repairing flexible closes the preparation method of water-stop curtain, uses mortar mixer to be stirred, and feeding sequence is water, water
Mud, flyash, sodium carbonate, slowing down solidifying water preparation, bentonite, blender rotating speed is that 150r/min stirs 7min, the most available
Self-repairing flexible closes water-stop curtain mixture mud.
It is preferable that gained self-repairing flexible closes water-stop curtain mixture slip fluidity, can Self-leveling, the working time reaches more than 4 hours
Concrete pump can be used to carry out pumping construction, obtain self-repairing flexible and close water-stop curtain, and this water-stop curtain has preferable sealing and resists
Ooze performance.
The above is only the preferred embodiment of the present invention, it is noted that for the person of ordinary skill of the art,
On the premise of conceiving without departing from the invention, it is also possible to making some modifications and variations, these broadly fall into the protection model of the present invention
Enclose.
Claims (8)
1. a self-repairing flexible closes water-stop curtain, it is characterised in that raw material includes water, bentonite, cement, flyash, dispersion
Agent, water-reducing and set-retarding admixture.
A kind of self-repairing flexible the most according to claim 1 closes water-stop curtain, it is characterised in that described each raw water, swelling
Soil, cement, flyash, dispersant, water-reducing and set-retarding admixture mass ratio are 100:(30～60): (3～7): (5～10):
(0.5～1): (0.5～1).
A kind of self-repairing flexible the most according to claim 1 closes water-stop curtain, it is characterised in that described dispersant is carbonic acid
One or more in sodium, potassium carbonate, soda mixture in any proportion.
A kind of self-repairing flexible the most according to claim 1 closes water-stop curtain, it is characterised in that described retarder is that cement delays
Solidifying water reducer.
A kind of self-repairing flexible the most according to claim 1 closes water-stop curtain, it is characterised in that described bentonite mesh number is higher than
200 mesh.
6. self-repairing flexible as claimed in claim 1 closes water-stop curtain, it is characterised in that described flexible water-stop curtain resistance to compression in 28 days
Intensity is 0.1～0.3MPa, and infiltration coefficient is 1 × 10-6～10 × 10-6cm/s。
7. a self-repairing flexible closes the preparation method of water-stop curtain, it is characterised in that according to each raw water, bentonite, cement,
Flyash, dispersant, water-reducing and set-retarding admixture mass ratio are 100:(30～60): (3～7): (5～10): (0.5～1): (0.5～1)
Get the raw materials ready；Then according to feeding sequence is: water, cement, flyash, dispersant, retarder, bentonite, each raw material is mixed
Close, i.e. can get self-repairing flexible and close water-stop curtain mixture.
A kind of self-repairing flexible the most according to claim 7 closes the preparation method of water-stop curtain, it is characterised in that described mixing
Using stirring, mixing speed is 60～150r/min, and mixing time is 5～8min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610205987.XA CN105837118B (en) | 2016-04-05 | 2016-04-05 | A kind of environment-friendly type self-repairing flexible closes water-stop curtain and preparation method thereof |
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| CN201610205987.XA CN105837118B (en) | 2016-04-05 | 2016-04-05 | A kind of environment-friendly type self-repairing flexible closes water-stop curtain and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107216090A (en) * | 2017-06-09 | 2017-09-29 | 中石化中原建设工程有限公司 | Waste and old oil and gas pipeline Harmless injecting treatment method |
| CN109748548A (en) * | 2019-01-04 | 2019-05-14 | 北京地矿工程建设有限责任公司 | A kind of occlusion water-stop curtain stake and the construction technology with its production occlusion water-stop curtain |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107216090A (en) * | 2017-06-09 | 2017-09-29 | 中石化中原建设工程有限公司 | Waste and old oil and gas pipeline Harmless injecting treatment method |
| CN107216090B (en) * | 2017-06-09 | 2020-02-11 | 中石化中原建设工程有限公司 | Pollution-free grouting treatment method for waste oil and gas pipelines |
| CN109748548A (en) * | 2019-01-04 | 2019-05-14 | 北京地矿工程建设有限责任公司 | A kind of occlusion water-stop curtain stake and the construction technology with its production occlusion water-stop curtain |
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| Publication number | Publication date |
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| CN105837118B (en) | 2018-06-26 |
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