CN105565731A - Inorganic waterproof coating - Google Patents
Inorganic waterproof coating Download PDFInfo
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- CN105565731A CN105565731A CN201410613252.1A CN201410613252A CN105565731A CN 105565731 A CN105565731 A CN 105565731A CN 201410613252 A CN201410613252 A CN 201410613252A CN 105565731 A CN105565731 A CN 105565731A
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Abstract
The invention discloses an inorganic waterproof coating. The inorganic waterproof coating is prepared by conveying the following raw materials to a stirrer to be stirred uniformly: 45-55 parts of 800# Portland cement, 20-25 part of extra-fine quartz sand, 25-30 parts of master batch, and 1-5 parts of an efficient coagulation-delaying type water reducing agent. The inorganic waterproof coating has the characteristics of having secondary seepage resistance, long-lasting waterproof performance, strong bonding, acid corrosion resistance and alkaline corrosion resistance, can grow insoluble crystals in capillary pores and microcracks in the concrete matrix to block the capillary pore passages and microcracks, in order to improve the concrete seepage resistance and reach the purposes of seepage resistance and leakage proofing. The inorganic waterproof coating can be widely applied to waterproof projects for metros, roads, ports, culverts, dams, pools and large-scale underground projects.
Description
Technical field
the invention belongs to construction waterproofing engineering technical field, relate to water-proof coating material, specifically, be a kind of for motorway, refuse landfill, bridge, tunnel, the inorganic water-proof coating of flat, facade waterproof, antiseep of inferior concrete structure building.
Background technology
concrete is a kind of porous mass, and pore and tiny crack are the basic reasons causing Concrete Leakage.As distortion causes, comprise because temperature humidity change causes contraction, expands, uneven settlement etc.; External load (dynamic and static load) direct stress causes.The cement group water-proofing material major part metal surface water-tight agent generally used at present, waterproof effect only acts on surface, automatically, in depth can not penetrate into inside configuration, and waterproof effect is not lasting.Along with time lapse produces the degenerative process continued, once water-proof coating is destroyed, waterproof ability is lost thereupon.This waterproof paint is that base material is made by silicate cement or ordinary Portland cement, purity quartzite, find through practice of construction application, this cement-based capillary crystalline waterproof coating is because be rigidity coating, easily and concrete binding, but after bonding, still can produce rigidity crack, the passage that its crack just becomes infiltration and leaks, not have waterproof action.
therefore, if insoluble crystal can be grown in the pore of concrete substrate and tiny crack, by capillary porosity duct and tiny crack blocking, just concrete waterproof ability can be improved.The cement-based capillary crystalline waterproof coating of nearest research and development; this principle is utilized to carry out waterproofing protection; this waterproof paint is base material by silicate cement or ordinary Portland cement, purity quartzite; mix various active chemical substance composition simultaneously; a kind of rigid waterproofing coating; when mix with water be painted on concrete substrate time, in material, active chemistry just can to inside concrete infiltration under the effect of concentration gradient, with CaO, Ca (OH) free in concrete
2
etc. reacting, and impel the aquation of non-hydrated cement in concrete, generate insoluble dendrite, blocking, close capillary porosity duct, thus improve concrete impermeability.
Summary of the invention
the object of the present invention is to provide the inorganic water-proof coating that a kind of waterproof, antiseep are effective, of long duration, it is in the formula of original cement-based capillary crystalline waterproof coating, add a kind of high polymer powdery toughner, mix various active chemical substance simultaneously, after the waterproof paint made has certain toughness and concrete binding, overcome rigidity crack, play waterproof action.
technical scheme of the present invention is as follows:
a kind of inorganic water-proof coating, it contains bonding component 45 ~ 55 parts, skeleton agent 20 ~ 25 parts, masterbatch 25 ~ 30 parts, efficient retarding water reducer 1 ~ 5 part, macromolecular toughening agent 1 ~ 5 part.According to the motorway of construction, bridge, tunnel, the needs of inferior concrete structure building waterproof layer, the accelerating chemicals of 0.1 ~ 5 part can also be added.Also hardening accelerator 1-5 part can be added.Waterproof paint is made up of following raw material specifically:
bonding component 45 ~ 55 parts, skeleton agent 20 ~ 25 parts, masterbatch 25 ~ 30 parts, efficient retarding water reducer 1 ~ 5 part, macromolecular toughening agent 1 ~ 5 part, accelerating chemicals 0.1 ~ 5 part composition.
need waterproof paint by bonding component 45 ~ 55 parts, skeleton agent 20 ~ 25 parts, masterbatch 25 ~ 30 parts, efficient retarding water reducer 1 ~ 5 part, macromolecular toughening agent 1 ~ 5 part according to what construct, hardening accelerator 1-5 part forms.
masterbatch of the present invention is the mixture containing active chemistry complexing agent, activated silica auxiliary agent, calcium aluminium composite salt.The inorganic salt that its complexing agent is binary organic monoacid, activated silica auxiliary agent is silicon, calcium aluminium composite salt are calcium containing compound and aluminium sulfate.
macromolecular toughening agent of the present invention is powdery cellulose or POLYPROPYLENE GLYCOL, such as carboxymethyl cellulose, POLYPROPYLENE GLYCOL etc.To improve adhesive property and the toughness of coating.
bonding component of the present invention is 800# silicate cement.It is as the main bonding component of inorganic water-proof coating.For improving coating self-strength and rigidity, suppressing the contraction of coating simultaneously, adding superfine quartz sand, superfine quartz sand when preparing coating, play skeleton function, its fineness requirement is 70 ~ 100 orders.
accelerating chemicals of the present invention is a kind of material for quickly stopping leakage, and the main species of accelerating chemicals has inorganic salts and organism class.The accelerating chemicals that China commonly uses is inorganic salts.Inorganic salts accelerating chemicals is broadly divided into three classes by its main component: the accelerating chemicals taking sodium aluminate as main component; With the accelerating chemicals that calcium aluminate, calcium aluminum fluoride etc. are main component; With silicate (NaSiO
3
) be the accelerating chemicals of main component.Main model have Red Star 1 type, 711 types, 782 types, 8604 types, WJ-l, J85 type etc. can in water rapid solidification, normal temperature initial set in lower 3 minutes, final set after 5 minutes, is applicable to the needs of leak stopping.
hardening accelerator of the present invention is Sulfates: as sodium iodate, Sulfothiorine, sodium sulfate or Tai-Ace S 150.Mix hardening accelerator and the concrete stirring of early strength water-reducing agent and vibrating method, can be identical with the concrete not mixing admixture.During as added stirrer with pulvis, should first and cement, to add water after bone meal dry mixing, churning time must not be less than 3min again.
efficient retarding water reducer of the present invention, has zinc chloride (ZnCl
2
), calcium sulfate (CaSO
4
) or phosphoric acid salt (2-phosphinylidyne-1,2,4-tricarboxylic acid) abbreviation: PBTC, molecular formula: C
7
h
11
o
9
p etc.The object added is to improve coating application performance, improves coating mechanical property, and its volume should the concrete coagulating time, shipment distance, storage period, intensity etc. of environmentally temperature, construction requirement be determined.Must be correct with metering during solution admixture, add during use in mixing water, the water yield in solution should be deducted from mixing water.Indissoluble and more should the adopting of insolubles dryly mix method, and extend concrete-agitating time 30s.And remain that concrete surface is moist, answer water seasoning after final set, when temperature is lower, heat and moisture preserving maintenance should be strengthened.
the inorganic water-proof coating of the present invention's development, take water as carrier, utilize the pore in concrete structure, be rapidly to the infiltration of concrete inside configuration, seepage force is extremely strong, according to experimental results demonstrate, may penetrate into concrete inside configuration 100mm place after 28 days, place after 1 year in physical environment, depth of penetration can reach 250 ~ 300mm.In process of osmosis, again there is hydration reaction in the composition of the particulate in the active chemistry of coating and concrete structure and not yet completely aquation, generate insoluble complicated and confused shape xln gradually and concrete is combined into as a whole, can bear 2Mpa hydraulic pressure and not seep water, secondary resistance to permeability pty also can more than 0.8Mpa.The concentration of active chemistry brushing when concrete surface in the principle of main dependence concentration gradient change and material is maximum, along with the increase of time, active chemistry permeates to inside concrete gradually, concentration is more and more rarer, defines concentration gradient, permeates to inside concrete, and impel the aquation of non-hydrated cement in concrete, generate insoluble dendrite, blocking, closed capillary porosity duct, thus improve concrete impermeability.
the present invention further discloses inorganic water-proof coating, improve the application in concrete impermeability in preparation.Wherein expect that=0.3 ﹕ 1 adds water uses that stir An Shui ﹕, through test record time of coagulation, folding strength, ultimate compression strength, impermeability pressure, for the second time impermeabilisation pressure etc. every actual measurement index all higher than set quota.
inorganic water-proof coating prepared by the present invention, can be divided into the waterproof paint of different model.Such as: XY-I coventional type inorganic water-proof coating; XY-II early-strength type inorganic water-proof coating etc.
wherein XY-I inorganic water-proof coating, be applicable to the needs of leak stopping, a kind of material for quickly stopping leakage, can in water rapid solidification, normal temperature initial set in lower 3 minutes, after 5 minutes, An Shui ﹕, final set expects that=0.3 ﹕ 1 adds water stirrings, the every linear meter(lin.m.) consumption of general leak stopping 2 ~ 3 kilograms, and seriously seep water the every linear meter(lin.m.) consumption of section 5 ~ 6 kilograms, be characterized in rapid hardening, morning is strong, quick-drying, sealing speed are fast, is applicable to the repairing leak stopping of various basal plane.
xY-II early-strength type inorganic water-proof coating is highly suitable for basal plane waterproof and repairing, concrete structure oozes situation slowly, sub-zero zero can use, even if be characterized in that quick-drying, early strong, construction are rear have trace infiltration or drop, after general seven days, this phenomenon will Lock-out, after 15 days, wet basis face is dry gradually, normal temperature initial set in lower about 10 minutes, surface drying after 20 minutes, constructional method and ratio of water to material with XY-I coventional type inorganic water-proof coating, every square meter consumption 1.5kg.
inorganic water-proof coating preparation method of the present invention, can carry out: screening → batching → feeding → spice → inspection → packaging warehouse-in as follows.Wherein screen: oarse-grained raw material is removed by sieve; Batching: according to above-mentioned formula in addition mix; Feeding: by each feedstock transportation in stirrer; Spice: raw material stirring is even by stirrer; Inspection: the process based prediction model checking compound;
the beneficial aspects that the inorganic water-proof coating of the present invention's development has compared with the capillary crystalline waterproof coating material used at present is:
(1) it is a kind of rigid waterproofing coating; in use can be the same with ordinary Portland cement; add that water stirs; being coated with scrapes at the very thin one deck of concrete surface; the pit, the crackle that produce in concrete construction in early stage can also be filled up; this water-proof coating material forms the fish tail and waterproof layer of crystallization in the micropore of cement based; block oozing out of water; waterproof, moisture resistance effect are permanent; its impermeability pressure increases by 200 ~ 500 times than former concrete; with the concrete surface strong adhesion of building in advance, stable performance, intensity are high.
(2) inorganic water-proof coating of the present invention, mainly rely on the concentration gradient change principle of active chemistry in material, namely the concentration of active chemistry brushing when concrete surface in material is maximum, along with the increase of time, active chemistry permeates to inside concrete gradually, concentration is more and more rarer, define concentration gradient, permeate to inside concrete, and impel the aquation of non-hydrated cement in concrete, generate insoluble dendrite, blocking, closed capillary porosity duct, thus improve concrete impermeability.This material can also as on the container blocking other fluid seepage or buildings.Can certainly be the same with existing cementitious capillary waterproofing material, as coating application plays waterproof on concrete surface after adding water.
Embodiment
in order to explain enforcement of the present invention more fully, what provide following inorganic water-proof coating prepares embodiment.These embodiments are only explain instead of limit the scope of the invention.Raw material sources: wherein masterbatch, accelerating chemicals, efficient retarding water reducer market are all on sale.
embodiment 1
xY-I coventional type inorganic water-proof coating
800# silicate cement 51 parts
fineness is 70 ~ 100 order superfine quartz sand 20 parts
masterbatch 23 parts
efficient retarding water reducer 3 parts
macromolecular toughening agent (carboxymethyl cellulose) 1 part
preparation technology's flow process: screening → batching → feeding → spice → inspection → packaging warehouse-in.
screening: oarse-grained raw material is removed by sieve; Batching: prepare burden according to above-mentioned formula; Feeding: by each feedstock transportation in stirrer; Spice: raw material stirring is even by stirrer; Inspection: the process based prediction model checking compound; Packaging warehouse-in: put in storage after the pack of qualified inorganic waterproof material or tinning.
above-mentioned formula operates according to the preparation technology of inorganic water-proof coating, makes XY-I coventional type inorganic water-proof coating, can be the same with ordinary Portland cement, expects that=0.3 ﹕ 1 adds water the use that stirs An Shui ﹕.
embodiment 2
xY-II early-strength type inorganic water-proof coating
800# silicate cement 51 parts
fineness is 70 order superfine quartz sand 20 parts
masterbatch 23 parts
efficient retarding water reducer 3 parts
macromolecular toughening agent (carboxymethyl cellulose) 1 part
hardening accelerator (Sulfothiorine) 0.5 part
preparation technology is with embodiment 1.
Claims (5)
1. an inorganic water-proof coating, it contains bonding component 45 ~ 55 parts, skeleton agent 20 ~ 25 parts, masterbatch 25 ~ 30 parts, efficient retarding water reducer 1 ~ 5 part, macromolecular toughening agent 1 ~ 5 part.
2. as right 1 require as described in waterproof paint, it is characterized in that also containing 0.1 ~ 5 part of accelerating chemicals.
3. as right 1 require as described in waterproof paint, it is characterized in that also containing 1 ~ 5 part of hardening accelerator.
4. the waterproof paint as described in any one of right 1, is characterized in that described macromolecular toughening agent is powdery cellulose or POLYPROPYLENE GLYCOL.
5. as right 2 require as described in waterproof paint, it is characterized in that described hardening accelerator is sodium iodate, Sulfothiorine, sodium sulfate or Tai-Ace S 150.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613252.1A CN105565731A (en) | 2014-11-05 | 2014-11-05 | Inorganic waterproof coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613252.1A CN105565731A (en) | 2014-11-05 | 2014-11-05 | Inorganic waterproof coating |
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| Publication Number | Publication Date |
|---|---|
| CN105565731A true CN105565731A (en) | 2016-05-11 |
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ID=55876448
Family Applications (1)
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|---|---|---|---|
| CN201410613252.1A Pending CN105565731A (en) | 2014-11-05 | 2014-11-05 | Inorganic waterproof coating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747070A (en) * | 2016-12-05 | 2017-05-31 | 河南华荣环保科技有限公司 | A kind of Ecotype inorganic dry powder painting and preparation method thereof |
| CN112608105A (en) * | 2020-12-24 | 2021-04-06 | 浙江裕洋隧道管片制造有限公司 | Prefabricated segment concrete and prefabricated segment |
-
2014
- 2014-11-05 CN CN201410613252.1A patent/CN105565731A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747070A (en) * | 2016-12-05 | 2017-05-31 | 河南华荣环保科技有限公司 | A kind of Ecotype inorganic dry powder painting and preparation method thereof |
| CN112608105A (en) * | 2020-12-24 | 2021-04-06 | 浙江裕洋隧道管片制造有限公司 | Prefabricated segment concrete and prefabricated segment |
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Application publication date: 20160511 |