CN104294856A - Concrete crack leaking stoppage method - Google Patents
Concrete crack leaking stoppage method Download PDFInfo
- Publication number
- CN104294856A CN104294856A CN201310312478.3A CN201310312478A CN104294856A CN 104294856 A CN104294856 A CN 104294856A CN 201310312478 A CN201310312478 A CN 201310312478A CN 104294856 A CN104294856 A CN 104294856A
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- Prior art keywords
- waterproof layer
- indication
- distress
- concrete
- blocking method
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- 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
- E04B1/6806—Waterstops
Abstract
The invention relates to a concrete crack leaking stoppage method. The concrete crack leaking stoppage method is used for crack leaking stoppage treatment of constructional engineering, is especially suitable for crack repairing and leaking stoppage of underground construction, water conservancy projects, tunnels, bridges, highways, docks, water ponds, walls, roofs, floors and the like, and belongs to the field of constructional engineering. The concrete crack leaking stoppage method is characterized in that at least one rigid waterproof layer and at least one flexible waterproof layer are combined, the rigid waterproof layers and the flexible waterproof layers are alternately stacked, and the specific process of the method comprises the steps of treatment of a base layer, construction of the first waterproof layer, construction of the subsequent waterproof layers and maintenance.
Description
Technical field
The present invention relates to a kind of distress in concrete blocking method, for the fracture plugging process of construction work, the crack being particularly useful for underground construction, hydraulic engineering, tunnel, bridge, highway, harbour, pond, body of wall, roof, flooring etc. is repaired and leak stopping, belongs to building engineering field.
Background technology
Current water-proof plugging material is divided into two classes, one class is organic polymer material, another kind of is inorganic cement base waterproof material, organic polymer paint good waterproof performance, and elasticity is sufficient, but shortcoming is easily aging, leakage point original after treating material aging is had a relapse again, and the shortcoming of cement-base waterproof coating is easy cracking, there is a large amount of pore in coating, and the bonding of it and body of wall is very fragile, easily peels off.
Soil polywater mud is the novel alkali-activated carbonatite cementitious material of a class that eighties of last century is developed by French JDavidovits the end of the seventies, it refers to that by burnedc lay (metakaolin is main), industrial residue etc. be primary raw material, is formed under the effect of alkali-activator.Sial oxygen compound in the mineral of the poly-cement raw material of soil experienced by one by depolymerization to the process of being polymerized again, and defining the structure of some natural minerals in the similar earth's crust, is the novel gelled material of excellent durability.Many mineral or mineral compound can have pozzolanic activity or latent hydraulicity after high-temperature calcination, such as kaolin has good activity after the calcining of 500-900 degree, slag, slag, flyash etc. be all through high temperature after product, also have good activity, the wollastonite, entringite, limestone, calcite etc. of calcining are all good active materials.Along with going deep into of research, the kind of exciting agent has been not limited to conventional alkali, but there is the multiple materials such as basic carbonate, silicate, sulfate, thus there is composite exciting agent in mode of excitation, above-mentioned material is generically and collectively referred to as Chemical-activated Materials, also inorganic polymer material is, from overall performance, alkali-activated carbonatite and the cementitious material based on alkali-activated carbonatite will significantly better than non-alkali-activated material, on ordinary meaning, alkali-activated carbonatite and the cementitious material based on alkali-activated carbonatite are referred to as alkalis excited inorganic polymeric material.The remarkable advantage of alkalis excited inorganic polymeric material is very firm and durable with the bonding of concrete substrate, therefore can not produce the problems such as disengaging, peeling, warpage.
Application number be 201010215669.4 name be called that the patent of " a kind of blocking method of outer wall of underground structure " proposes a kind of blocking method of slip casting, this method is applied very wide now, its maximum problem can there is gap between injecting paste material and concrete, is difficult to stop seepage.
Application number be 200820032186.9 name be called the method for repairing and mending that the patent of " basement concrete wall slit mending body " proposes a kind of glass fiber and adds polyurethane coating, its repair efficiency is better than a kind of front method, but problem is that its durability is bad, firm successful when having repaired, but this place can leak again not spend several years.
Application number be 200920279118.7 name be called that the patent of " concrete for hydraulic structure member expansion joint or crack water leakage preventing structure " adopts support member and flexible material dead-end fracture, the plugging effect of fracture is very good, but it also has weakness, one is that the price of material is very expensive, two is that the durability of organic material is inadequate, time grows easy agingly to come off, and causes waterproof ability to lose efficacy.
Summary of the invention
The present invention is to improve prior art, utilizes the advantage of flexible material and rigid material, learns from other's strong points to offset one's weaknesses, and flexible material and rigid material alternately superposition, provides a kind of distress in concrete blocking method that is easy, good endurance of constructing.
The present invention realizes in the following manner:
A kind of distress in concrete blocking method, it is characterized in that being combined by the flexible waterproof layer of the rigid waterproof layer of at least one deck and at least one deck, rigid waterproof layer and flexible waterproof layer alternately superpose, and its detailed process comprises:
1) base treatment
Pretreatment is carried out to the concrete base layer of concrete cracks periphery, clean out decorative layer, surface dust, groove can be excavated when needed, and smooth well sticky note face, in order to increase waterproofing course to concrete adhesion stress, can also apply interfacial agents, bleeding agent etc., bleeding agent is conducive to the pore blocking seepage.
2) the first construction of waterproof layer
Lay the first waterproofing course in the basic unit processing completion, after completing, enter next step, the first waterproofing course be in rigid waterproof layer and flexible waterproof layer both one of.
Can be entered next step through maintenance after first construction of waterproof layer completion, also directly can enter next step without maintenance.
The flexible waterproof layer of indication refers to the waterproofing course that the flexible materials such as water-repellent paint, waterproof roll, membrane waterproofing material, silica gel, resin material, elastic coating, rubber, polyureas, plastic cement, composite elastic material are formed.
The rigid waterproof layer of indication refers to the waterproofing course that the rigid materials such as polymer mortar, cement group water-proofing material, alkalis excited inorganic polymeric material, epoxy mortar are formed.
3) follow-up construction of waterproof layer
The first waterproofing course completed lays the second waterproofing course, and with reference to said method, until complete all construction of waterproof layer, next step is entered after all completing, all waterproofing courses be all in rigid waterproof layer and flexible waterproof layer both one of, and rear one waterproofing course is not identical with the classification of front waterproofing course together.
4) maintenance
Refer to carry out maintenance to the waterproofing course completed, make it harden further and reach intensity.
Maintenance can be the modes such as natural curing, covering curing, curing agent maintenance, hardener maintenance, watering maintenance.
According to distress in concrete blocking method of the present invention, the rigid waterproofing layer material of indication can be alkalis excited inorganic polymeric material.
The alkalis excited inorganic polymeric material of indication refers to the material of alkali-activated carbonatite cementitious material for main binding agent.
Through separating poly-polycondensation process after the alkali-activated carbonatite cementitious material of indication refers to and mixes with alkali-activated carbonatite active material and basic matterial, generate the cementitious material of new inorganic polymer network structure.
The alkali-activated carbonatite active material of indication refers at least one had in pozzolanic activity material, latent hydraulicity material.
According to distress in concrete blocking method of the present invention, can also comprise cloth in the waterproofing course of indication, the material of cloth can be polyester fiber, polypropylene fibre, cellulose fibre, steel fibre, glass fiber, monfil, PVA fiber, carbon fiber, mineral fibers, ceramic fibre, organic polymer fiber etc.
According to distress in concrete blocking method of the present invention, can also permeate in the waterproofing course of indication and have hydrophobic material, the hydrophobic material of indication can be potassium methyl silicate, sodium methyl silicate, methane-siliconic acid lithium, methyl-silicone oil, silicone oil, organosilicon moisture repellent, polysiloxanes hydrophober, silylation hydrophober, nano hydrophobic agent, Kind of Modified Polyvinyl Alcohol Based Waterborne Water-Repellent, HEA macromolecule hydrophober, powder hydrophober, emulsion-type hydrophober etc.
According to distress in concrete blocking method of the present invention, investment precoat construction can also be comprised in the waterproofing course of indication, investment precoat doublely can do decorative layer, also can take into account water-proof function, the investment precoat of indication can be exterior wall coating material, interior wall coating material, organic waterproof coating, cement mortar, paint, putty, alkali-resisting paint, anti-accumulation of salt in the surface soil agent etc. simultaneously.
According to distress in concrete blocking method of the present invention, the basic matterial of indication can be at least one in alkaline silicate, alkaline phosphate, alkali metal oxide, alkali, carbonate.
According to distress in concrete blocking method of the present invention, the alkali-activated carbonatite active material of indication can be at least one in metakaolin, kaolin, slag, slag, flyash, blast furnace granulated slag, slag, gangue, wollastonite, calcining mineral, calcined clay, phosphorus slag, red mud, industrial tailings.
According to distress in concrete blocking method of the present invention, the basic matterial of indication can also be at least one in silicate of soda, potassium silicate, lithium metasilicate, NaOH, potassium hydroxide, lithium hydroxide, calcium hydroxide, sodium oxide molybdena, potassium oxide, lithia, calcium oxide, sodium carbonate, potash, lithium carbonate, sodium phosphate, potassium phosphate, lithium phosphate.
According to distress in concrete blocking method of the present invention, the alkalis excited inorganic polymeric material of indication can also comprise filler, and filler is except improving material property by packing volume.
According to distress in concrete blocking method of the present invention, the filler of indication can be at least the one in metallic particles, inorganic particle, metal oxide, metal hydroxides, breeze, stone powder, quartz, industrial residue particle, coarse aggregate, cement, silicon ash, nanometer powder, rice hull ash, silt deposit, perlite, glass-cermic powder, zeolite, hollow ceramic microspheres, French chalk, silicon powder, fiber, cloth, fiber dust, laminal filter, mica, expansion agent, organic polymer fillers, hydrophobic material, pigment.
According to distress in concrete blocking method of the present invention, the alkalis excited inorganic polymer of indication can also comprise auxiliary agent, and the auxiliary agent of indication is at least the one in levelling agent, coalescents, thickener, retarding agent, accelerating admixture, water-loss reducer, plasticizing agent, water reducing agent, defoamer, dispersing agent, surfactant, air entraining agent, blowing agent, coupling agent, hardening accelerator.
According to distress in concrete blocking method of the present invention, the flexible waterproof layer construction of indication is constructed can also carry out simultaneously with rigid waterproof layer, and flexible waterproof layer is wrapped in the middle of rigid waterproof layer, is shaped to sandwich structure, and this construction method speed is faster.
The crack that distress in concrete blocking method of the present invention is particularly useful for underground construction, hydraulic engineering, tunnel, bridge, highway, harbour, pond, body of wall, roof, flooring etc. is repaired and leak stopping, adopt distress in concrete blocking method of the present invention, greatly can improve waterproof effect, good endurance, with low cost.
Accompanying drawing explanation
Fig. 1 is mine dam front elevation view of the present invention;
Fig. 2 is the concrete wall sectional drawing of the first embodiment of the present invention;
Fig. 3 is the concrete wall sectional drawing of the second embodiment of the present invention;
Fig. 4 is the concrete wall sectional drawing of the third embodiment of the present invention;
Symbol description:
1---crack
2---flexible waterproof layer
2-1---second flexible waterproof layer
2-2---the 3rd road flexible waterproof layer
3---rigid waterproof layer
3-1---second rigid waterproof layer
3-2---the 3rd road rigid waterproof layer
4---bottom rigid waterproof layer
5---mine dam
Detailed description of the invention
The present invention is applicable for needing the body of wall of waterproof, top board, base plate, repairs, be further described by reference to the accompanying drawings below by the crack of concrete wall:
Embodiment 1
Embodiments of the invention 1 (see Fig. 1,2), Fig. 1 is a stifled Concrete Anti waterwall [5], has one crack [1] at shown position, the section of mine dam [5] is shown in Fig. 2, in the present embodiment, adopt two waterproof layer structure, its waterproofing work process is as follows:
1) base treatment
Pretreatment carried out to the concrete base layer of concrete cracks periphery, peels decorative layer off, clean out surface dust, smooth well sticky note face.
Permeate concrete surface with potassium silicate solution, improve concrete water proofing property, after drying,
With polyurethane adhesive painted concrete surface, after parching, enter next step.
2) the first construction of waterproof layer
The present embodiment adopts high elasticity water-proof paint as the material of flexible waterproof layer [2], and along fractuer direction brushing 3 road, make the gross thickness of flexible water [2] more than 1.6 millimeters, width is 30 millimeters, enters next step after parching.
3) follow-up construction of waterproof layer
Only have twice waterproofing course in the present embodiment, therefore follow-up waterproofing course only has one rigid waterproof layer [3], and the material that rigid waterproof layer [3] adopts is alkalis excited inorganic polymeric material, and its proportioning is as follows:
Metakaolin 2kg potassium silicate solution 2.5kg calcium carbonate 0.2kg barium sulfate 0.02kg NaOH 0.01kg titanium dioxide 0.02kg slag 0.5kg
Along crack, within the scope of width 60 millimeters, brushing alkalis excited inorganic polymeric material is together, along the alkalis excited inorganic polymeric material of just brushing, sticky note width is the glass fabric two of 25 millimeters side by side immediately, splicing seams is staying centre, can ensure so in the future when distress in concrete expands, the crack of waterproofing course appears at centre, because mid portion has flexible waterproof layer [2] to stop, can not produce seepage.
Continue brushing alkalis excited inorganic polymeric material, glass fabric is covered completely, and the thickness of alkalis excited inorganic polymeric material reaches 1 millimeter, and natural curing 1 day treats that alkalis excited inorganic polymeric material tentatively solidifies.Continue brushing alkalis excited inorganic polymeric material together, make the gross thickness of alkalis excited inorganic polymeric material reach 2 millimeters.
4) maintenance
Refer to carry out maintenance to the waterproofing course completed, when air ratio is drier, the present embodiment adopts the method maintenance of spraying curing agent, and curing agent can make the compactness of waterproofing course better, improves waterproof effect.
The present embodiment adopts twice waterproofing course, and one flexible waterproof layer, one rigid waterproof layer, is suitable for use in the place that leak magnitude is smaller, and its waterproof durability and reliability are obviously better than general rigidity water-proofing material, is also better than waterproof roll and water-repellent paint.
Embodiment 2
Embodiments of the invention 2 (see Fig. 1,3), Fig. 1 is a stifled Concrete Anti waterwall [5], has one crack [1] at shown position, the section of mine dam [5] is shown in Fig. 3, in the present embodiment, adopt three road waterproof layer structures, its waterproofing work process is as follows:
1) base treatment
Carry out pretreatment to the concrete base layer of concrete cracks periphery, peel decorative layer off, clean out surface dust, cut out the groove of 3 mm depths, recess width 60 millimeters.
With the concrete of the moistening crack of water [1] periphery, keep moistening, enter next step.
2) the first construction of waterproof layer
One bottom rigid waterproof layer [4] is had as the first waterproofing course in the present embodiment, the effect of bottom rigid waterproof layer [4] has be ensure waterproofing course and concrete bonding more firm at two: one, and two is ensure that the laminating between flexible waterproof layer [2] is tightr.Bottom rigid waterproof layer [4] adopts alkalis excited inorganic polymeric material, along fractuer direction brushing 3 road, makes flushing with concrete surface of flexible water [2], advances into next step in initial set.
3) follow-up construction of waterproof layer
The present embodiment Zhong You tri-road waterproofing course, second waterproofing course is flexible waterproof layer [2], and the material of flexible waterproof layer [2] is the polypropylene film of 1.0 millimeters thick, thin-film width 50 millimeters.
Flexible waterproof layer [2] is directly sticky to be posted on above not dry bottom rigid waterproof layer [4], and then brushing rigid waterproof layer [3], the material that rigid waterproof layer [3] adopts is alkalis excited inorganic polymeric material.
4) maintenance
Refer to carry out maintenance to the waterproofing course completed, when air ratio is more moistening, the present embodiment adopts natural curing.
5) hydrophobic material is permeated
Rigid waterproof layer [3] through maintenance sprays organosilicon moisture repellent, hydrophober is permeated at waterproofing course, and forms very thin hydrophobic film on surface, improve waterproof ability further.
6) investment precoat construction
After organosilicon moisture repellent parches, then brushing polypropylene interior wall coating material twice are as facing decoration, and all-work completes.
The present embodiment adopts three road waterproofing courses, and be flexible waterproof layer together, twice are rigid waterproof layers, and this three roads waterproofing course is constructed simultaneously, and flexible waterproof layer is wrapped in the middle of rigid waterproof layer, is shaped to sandwich structure, and this construction method speed is faster.
In order to cost-saving, the present embodiment also only can use twice waterproofing course, i.e. bottom rigid waterproof layer [4] and flexible waterproof layer [2], outermost rigid waterproof layer [3] can dispense, come off to prevent flexible waterproof layer [2], sticky note braid or non-woven fabrics before bottom rigid waterproof layer [4] does not solidify, and then brushing water-repellent paint, this method can be called the blocking method of simplification.
Investment precoat in the present embodiment can be constructed with the decoration of metope entirety simultaneously, forms complete entirety.The present embodiment waterproof effect is reliable, and be suitable for use in important waterproof construction, its waterproof durability and reliability are obviously better than general rigidity water-proofing material, are also better than waterproof roll and water-repellent paint.
Embodiment 3
Embodiments of the invention 3 (see Fig. 1,4), Fig. 1 is a stifled Concrete Anti waterwall [5], has one crack [1] at shown position, the section of mine dam [5] is shown in Fig. 4, in the present embodiment, adopt multi layer waterproof Rotating fields, its waterproofing work process is as follows:
1) base treatment
With embodiment 2.
2) the first construction of waterproof layer
With embodiment 2.
3) follow-up construction of waterproof layer
The construction of rigid waterproof layer [3] is with embodiment 2, next the construction of all waterproofing courses is successively completed, 7 road waterproofing courses are had in the present embodiment, rigid waterproof layer [3] respectively, second rigid waterproof layer [3-1], 3rd road rigid waterproof layer [3-2], flexible waterproof layer [2], second flexible waterproof layer [2-1], 3rd road flexible waterproof layer [2-2] and bottom rigid waterproof layer [4], the material of per pass rigid waterproof layer can be different, also can be identical, the material of per pass flexible waterproof layer also can be different.
4) maintenance
Refer to carry out maintenance to the waterproofing course completed, when air ratio is more moistening, the present embodiment adopts natural curing.
The present embodiment adopts multi layer waterproof layer, and waterproof effect is reliable, is suitable for use in very important waterproof construction.
In above embodiment, all do not have fracture inside to process, this is because the material of slip casting and the cementation of fissures and technology are all very ripe, injecting treatment can be carried out by fracture before or after the present invention's completion.
Above-described embodiment is only present pre-ferred embodiments; not limit to the present invention with this; therefore; feature all and of the present invention, structure etc. are approximate, identical; i.e. all equivalent replacements of doing according to patent claim of the present invention or modification etc., within the scope that all still should belong to patent application of the present invention protection.
Claims (12)
1. a distress in concrete blocking method, it is characterized in that being combined by the flexible waterproof layer of the rigid waterproof layer of at least one deck and at least one deck, the alternately superposition of rigid waterproof layer and flexible waterproof layer, its detailed process comprises:
1) base treatment
Pretreatment is carried out to the concrete base layer of concrete cracks periphery;
2) the first construction of waterproof layer
Lay the first waterproofing course in the basic unit processing completion, after completing, enter next step, the first waterproofing course be in rigid waterproof layer and flexible waterproof layer both one of;
3) follow-up construction of waterproof layer
The first waterproofing course completed lays the second waterproofing course, and with reference to said method, until complete all construction of waterproof layer, next step is entered after all completing, all waterproofing courses be all in rigid waterproof layer and flexible waterproof layer both one of, and rear one waterproofing course is not identical with the classification of front waterproofing course together;
4) maintenance
Refer to carry out maintenance to the waterproofing course completed, make it harden further and reach intensity.
2., according to distress in concrete blocking method according to claim 1, it is characterized in that the rigid waterproofing layer material of indication is alkalis excited inorganic polymeric material;
The alkalis excited inorganic polymeric material of indication refers to the material of alkali-activated carbonatite cementitious material for main binding agent;
Through separating poly-polycondensation process after the alkali-activated carbonatite cementitious material of indication refers to and mixes with alkali-activated carbonatite active material and basic matterial, generate the cementitious material of new inorganic polymer network structure;
The alkali-activated carbonatite active material of indication refers at least one had in pozzolanic activity material, latent hydraulicity material.
3., according to distress in concrete blocking method according to claim 1, it is characterized in that also comprising cloth in the waterproofing course of indication.
4., according to distress in concrete blocking method according to claim 1, it is characterized in that also infiltration has hydrophobic material in the waterproofing course of indication.
5., according to distress in concrete blocking method according to claim 1, it is characterized in that in the waterproofing course of indication, also comprise investment precoat construction.
6., according to distress in concrete blocking method according to claim 2, it is characterized in that the basic matterial of indication refers at least one in alkaline silicate, alkaline phosphate, alkali metal oxide, alkali, carbonate.
7., according to distress in concrete blocking method according to claim 2, it is characterized in that the alkali-activated carbonatite active material of indication is at least one in metakaolin, kaolin, slag, slag, flyash, blast furnace granulated slag, slag, gangue, wollastonite, calcining mineral, calcined clay, phosphorus slag, red mud, industrial tailings.
8., according to distress in concrete blocking method according to claim 2, it is characterized in that the basic matterial of indication is at least one in silicate of soda, potassium silicate, lithium metasilicate, NaOH, potassium hydroxide, lithium hydroxide, calcium hydroxide, sodium oxide molybdena, potassium oxide, lithia, calcium oxide, sodium carbonate, potash, lithium carbonate, sodium phosphate, potassium phosphate, lithium phosphate.
9., according to distress in concrete blocking method according to claim 2, it is characterized in that the alkalis excited inorganic polymeric material of indication also comprises filler.
10., according to distress in concrete blocking method according to claim 9, it is characterized in that the filler of indication is at least the one in metallic particles, inorganic particle, metal oxide, metal hydroxides, breeze, stone powder, quartz, industrial residue particle, coarse aggregate, cement, silicon ash, nanometer powder, rice hull ash, silt deposit, perlite, glass-cermic powder, zeolite, hollow ceramic microspheres, French chalk, silicon powder, fiber, cloth, fiber dust, laminal filter, mica, expansion agent, organic polymer fillers, hydrophobic material, pigment.
11. according to distress in concrete blocking method according to claim 2, it is characterized in that the alkalis excited inorganic polymer of indication also comprises auxiliary agent, the auxiliary agent of indication is at least the one in levelling agent, coalescents, thickener, retarding agent, accelerating admixture, water-loss reducer, plasticizing agent, water reducing agent, defoamer, dispersing agent, surfactant, air entraining agent, blowing agent, coupling agent, hardening accelerator.
12. according to distress in concrete blocking method according to claim 1, and it is characterized in that the flexible waterproof layer construction of indication is constructed with rigid waterproof layer and carry out simultaneously, flexible waterproof layer is wrapped in the middle of rigid waterproof layer.
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| CN114855705A (en) * | 2021-06-21 | 2022-08-05 | 韩元元 | Method for treating leakage of water engineering |
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2013
- 2013-07-15 CN CN201310312478.3A patent/CN104294856A/en active Pending
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