CN102167547B - Cementitious capillary crystalline waterproof material capable of quickly repairing cracks - Google Patents
Cementitious capillary crystalline waterproof material capable of quickly repairing cracks Download PDFInfo
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- CN102167547B CN102167547B CN201010617913XA CN201010617913A CN102167547B CN 102167547 B CN102167547 B CN 102167547B CN 201010617913X A CN201010617913X A CN 201010617913XA CN 201010617913 A CN201010617913 A CN 201010617913A CN 102167547 B CN102167547 B CN 102167547B
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- waterproofing material
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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
-
- 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
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
The invention relates to a cementitious capillary crystalline waterproof material, which comprises the following components in percentage by weight: 30 to 50 percent of cement, 5 to 10 percent of swelling agent, 8 to 20 percent of quartz sand, 5 to 12 percent of mineral additive, 20 to 35 percent of water reducer, 0.2 to 1.0 percent of retarder, 1 to 15 percent of crystal precipitator, 1 to 12 percent of complexing agent, 1 to 13 percent of calcium ion compensating agent and 0.1 to 1.0 percent of crystal growth promoter. The cementitious capillary crystalline waterproof material has double waterproof property, high cementitious capillary crystallization capacity, capacity of quickly repairing the cracks, and excellent chemical corrosion resistance.
Description
Technical field:
The present invention relates to a kind of building water-proof material, be specifically related to a kind of cementitious capillary waterproofing material with the characteristics that mend a split fast.
Background technology:
In the present age economic, scientific and technological develop rapidly; Industrial buildings and covil construction have spread all over all over the world; Large-scale civil construction is in the ascendant, and New Building Materials emerge in an endless stream, and advanced Building technology, design constantly are applied; Make modern building not only attractive in appearance, magnificent, and practical, durable more.Yet the same with anything, modern architecture is not to be perfect yet, how to prevent that building structure percolating water is still a great problem that is perplexing building operation person for a long time.In the buildings waterproof field, generally can water-proof material be divided into flexibility and rigidity water-proofing material, though flexible water has waterproof effect preferably, general weather resistance is relatively poor, and certain pollution is arranged in the production process.And rigidity inner waterproofing structure, it is relatively poor to exist resistance to cleavage, can not effect a radical cure whole spaces of vesicular structure and to fissured healing, and the waterproof cost is also higher, can't fundamentally solve waterproof problem.Cementitious capillary waterproofing material is a kind of waterproof material that grew up in recent years; The active substance that it can contain through self is under the effect of concentration difference; Penetrate into concrete tiny crack place; With material generation crystalline deposit reactions such as calcium hydroxide and unhydrated cement, generate a large amount of needle-like crystals and stop up the bleeding of concrete passage, thereby reach the purpose of waterproof.Through development in a few years, China is obtaining certain achievement aspect the use permeable crystalline waterproofing material, but is never obtaining important breakthrough aspect the preparation of this material core masterbatch.At present, though domestic existing partial monopoly was reported the preparation method of said material, also exist certain problem mostly.As having related to a kind of preparation method of permeable crystalline waterproofing material among the patent CN100347249C; This method is mixed oven dry with silicane hydrophobic type product with wilkinite after; Just can obtain through technologies such as grindings, this technology is too complicated in actual production, lacks operability again.The penetrant crystalline type material that relates in other patent is then impervious not satisfactory with the ability to performance of reparation crack at secondary.
Summary of the invention:
The present invention is intended to prepare and a kind ofly has superpower penetrant crystalline ability, and production technique is simple, the novel concrete base osmotic crystalline waterproof material of rehabilitating concrete microfracture fast.
The present invention provides a kind of cementitious capillary waterproofing material, and it comprises following component by weight percentage:
Cement 30-50%
Swelling agent 5-10%
Silica sand 8-20%
Mineral additive 5-12%
Water reducer 20-35%
Retardant 0.2-1.0%
Crystalline deposit agent 1-15%
Complexing agent 1-12%
Calcium ion shim 1-13%
Crystal growth agent 0.1-1.0%.
Described permeable crystalline waterproofing material preferably comprises by weight percentage:
Cement 35-45%
Swelling agent 7-9%
Silica sand 10-15%
Mineral additive 5-12%
Water reducer 25-30%
Retardant 0.5-0.8%
Crystalline deposit agent 3-8%
Complexing agent 2-6%
Calcium ion shim 2-8%
Crystal growth agent 0.5-0.8%.
Said cement is the mixture of silicate cement or silicate cement and aluminosulfate cement.
Said cement is silicate cement and aluminosulfate cement mixture, and wherein the weight ratio of the two is 100: 10～30.
Said swelling agent is an aluminate-aluminosilicate expanding agent.
Said silica sand is particle diameter 80～120 orders and two composite forming of specification silica sand of 200～325 orders, the composite weight ratio 10～100: 10～100 of the two.
Said mineral additive is selected from silicon ash, ground blast furnace slag and flyash or its mixture.
Said water reducer is early-strength type polycarboxylate water-reducer or naphthalene water reducer.
Said retardant is selected from Sunmorl N 60S, Trisodium Citrate, tartrate or its mixture.
Said crystalline deposit agent is quick dissolved sodium silicate or yellow soda ash;
Said complexing agent is oxalic acid or metasilicic acid; The calcium ion shim is a calcium hydroxide, and the crystal growth agent is Quilonum Retard or calcium formiate.
Preparing method of the present invention mixes cement, silica sand, swelling agent and other various auxiliary agents according to a certain percentage through Agravicmixer.All raw material is commercially available material of construction or industrial auxiliary agent.
The advantage that the present invention gives prominence to is:
(1) has dual water resistance;
The crystallization physical efficiency that cement based penetration crystallization type water proofing paint of the present invention produced is deep into the inner blockage structure of concrete structure hole, seam; And this performance can be activated after meeting water again; Performance with durable water resistant, simultaneously, because the performance of itself microdilatancy; Can play the effect of compensate for shrinkage, can make the structure basal plane after the construction have good anticracking, impervious effect equally.
(2) self-repairing capability of uniqueness;
Cementitious capillary crystalline waterproofing agent of the present invention is an inorganic waterproof material, and formed xln can not produce aging.Still can be activated when meeting water again after active substance is many year, reaction produces new crystal and will continue closely knit, sealing or seal the crack less than 0.5mm again, the process of completion self-regeneration.This point also can be used as a concrete intelligence repairing type material and uses.
(3) has the good penetration performance;
The crystallization physical efficiency that permeable crystalline waterproofing material produced that the present invention makes is deep into the inner blockage structure of concrete structure hole, seam; And this performance can be activated after meeting water again; Performance with durable water resistant; And, therefore can be penetrated into the place of the following 5cm of concrete surface under normal conditions because crystalline deposit agent and the complexing agent selected for use in the prescription all have the good penetration performance.
(4) has extremely strong water pressure resistance ability;
Experimental study shows: the PQ that scribbles the concrete sample of about this material of 1.2mm of thickness can reduce significantly, and it can bear the water pressure of 123m at least.
(5) has the ability that mends a split fast
In the product of the present invention owing to added special crystal growth agent; Can promote the quick growth of xln, therefore, when the crack occurring on the concrete substrate; Generally can within a week, repair the minute crack that is produced, traditional penetrant crystalline water-proof material then is difficult to accomplish.
(6) under severe environmental conditions, can reduce Ca (OH)
2Stripping
In severe environmental conditions, because Ca (OH)
2Stripping and cause the case of concrete carbonization phenomenon aggravation, structure deteriorate can be found everywhere.Ca in the hydrated product of conventional concrete (OH)
2Content generally can reach 20～25%, separate out in case this part material is dissolved, then can make a large amount of hole of generation in the concrete structure.Product of the present invention and Ca (OH)
2Have good reaction activity, can make Ca (OH)
2Change stable chemical substance into, therefore greatly improved the structural stability under the aggressiveness severe environmental conditions in the concrete.
(7) superior chemical resistance of concrete property, product of the present invention can solution discontinuous property immersion in PH=2～13 scopes.
Embodiment:
Below with embodiment the present invention is described further, but said embodiment only is used to the present invention is described and does not limit the present invention.Following ratio all is weight percentage.
Embodiment 1
Silicate cement 35%
Swelling agent 7%
Silica sand (80 order) 8%
Silica sand (325 order) 7%
Silicon ash 10%
UNF-5 naphthalene water reducer 25%
Sunmorl N 60S 0.6%
Water glass 3%
Yellow soda ash 4%
Metasilicic acid 5%
Calcium hydroxide 2%
Quilonum Retard 0.5%
Embodiment 2
Silicate cement 30%
Aluminosulfate cement 8%
Swelling agent 9%
Silica sand (100 order) 10%
Silica sand (325 order) 5%
Ground blast furnace slag 12%
Naphthalene water reducer 30%
Sunmorl N 60S 0.5%
Water glass 8%
Oxalic acid 3%
Calcium hydroxide 6%
Quilonum Retard 0.6%
Embodiment 3
Silicate cement 45%
Swelling agent 7%
Silica sand (80-120 order) 10%
Silica sand (325 order) 2%
Flyash 8%
Polycarboxylate water-reducer 26%
Tartrate 0.5%
Water glass 4%
Yellow soda ash 2%
Metasilicic acid 5%
Calcium hydroxide 4%
Quilonum Retard 0.6%
Embodiment 4
Silicate cement 40%
Aluminosulfate cement 5%
Swelling agent 9%
Silica sand (120 order) 2%
Silica sand (325 order) 10%
Silicon ash 8%
Polycarboxylate water-reducer 26%
Trisodium Citrate 0.6%
Water glass 4%
Oxalic acid acid 5%
Calcium hydroxide 4%
Calcium formiate 0.6%
This product adopts agravic mixing and blending machine to stir; Earlier that crystalline deposit agent, complexing agent, calcium ion shim, retardant, crystal growth agent premix is even during stirring; Mixing time is 20 minutes; Grind then through 180 mesh, add corresponding cement, silica sand, swelling agent, water reducer, mineral additive according to the prescription consumption at last and stirred 30 minutes.
For supporting the present invention, respectively according to GB 18445-2001 cementitious capillary waterproofing material " and " concrete for hydraulic structure tentative specification " DL/T5150-2001 in ' the impervious relatively test of concrete ' method part index number of the present invention has been carried out test comparison.
Can be found out by last table: compare with publication, the present invention is at secondary anti-permeability performance, PQ and repair and obviously be superior to other products aspect the speed of crack, and especially repairing speed aspect, crack is a main innovate point of the present invention.Otherwise performance has proved then that the permeable crystalline waterproofing material that relates in the publication is impervious at secondary, it is relatively poor all to show aspect the PQ.
Claims (11)
1. cementitious capillary waterproofing material is characterized in that comprising by weight percentage following component:
2. permeable crystalline waterproofing material according to claim 1 is characterized in that comprising by weight percentage:
3. permeable crystalline waterproofing material according to claim 1 is characterized in that said cement is the mixture of silicate cement or silicate cement and aluminosulfate cement.
4. permeable crystalline waterproofing material according to claim 3 is characterized in that said cement is silicate cement and aluminosulfate cement mixture, and wherein the weight ratio of the two is 10: 1～3.
5. permeable crystalline waterproofing material according to claim 1 is characterized in that said swelling agent is an aluminate-aluminosilicate expanding agent.
6. permeable crystalline waterproofing material according to claim 1 is characterized in that said silica sand is particle diameter 80～120 orders and two composite forming of specification silica sand of 200～325 orders, the composite weight ratio 1～10: 1～10 of the two.
7. permeable crystalline waterproofing material according to claim 1 is characterized in that said mineral additive is selected from silicon ash, ground blast furnace slag and flyash or its mixture.
8. permeable crystalline waterproofing material according to claim 1 is characterized in that said water reducer is early-strength type polycarboxylate water-reducer or naphthalene water reducer.
9. permeable crystalline waterproofing material according to claim 1 is characterized in that said retardant is selected from Sunmorl N 60S, Trisodium Citrate, tartrate or its mixture.
10. permeable crystalline waterproofing material according to claim 1 is characterized in that said crystalline deposit agent is quick dissolved sodium silicate or yellow soda ash.
11. permeable crystalline waterproofing material according to claim 1 is characterized in that said complexing agent is oxalic acid or metasilicic acid; The calcium ion shim is a calcium hydroxide, and the crystal growth agent is Quilonum Retard or calcium formiate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010617913XA CN102167547B (en) | 2010-12-22 | 2010-12-22 | Cementitious capillary crystalline waterproof material capable of quickly repairing cracks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010617913XA CN102167547B (en) | 2010-12-22 | 2010-12-22 | Cementitious capillary crystalline waterproof material capable of quickly repairing cracks |
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| Publication Number | Publication Date |
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| CN102167547A CN102167547A (en) | 2011-08-31 |
| CN102167547B true CN102167547B (en) | 2012-12-12 |
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| Publication number | Publication date |
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| CN102167547A (en) | 2011-08-31 |
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