CN1922268A - Epoxy resin mortar composition and a method of coating the same on concrete surface - Google Patents
Epoxy resin mortar composition and a method of coating the same on concrete surface Download PDFInfo
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Abstract
This invention relates to an epoxy resin mortar composition and a method of coating the same on concrete surface. More particularly, this invention relates to an epoxy resin mortar composition which is used as a material for the purpose of reinforcing surface and improving external feature in finishing up the concrete surface wherein the epoxy basal resin is converted to have a low-viscous immobility to give dimorphism.
Description
The invention technical field
The present invention relates to epoxy resin mortar composite and in the method for concrete surface coating.More specifically, the present invention relates to when covering with paint, lacquer, colour wash, etc. concrete surface in order to strengthen the surface and to improve the epoxy resin mortar composite of the material of surface, wherein said epoxy is converted into to have low viscous immobility and shows dimorphism.When the immobilising resin combination of such preparation and natural, synthetical, colored silica sand or mineral compound were mixed for carrying out the mortar construction on ground, wall, inclined-plane and crooked concrete surface, it can be filled inner space thereby allow in the plastering method free fully when keeping initial shape.In addition, when when using machine on concrete surface, to lay simultaneously to plaster, improve physicals and workability greatly thereby can form standardized mortar surface with pressure.
Background of invention
Usually chemical resin, particularly Resins, epoxy owing to its good physicals, are widely used as the material that strengthens and improve external structure when covering with paint, lacquer, colour wash, etc. concrete floor.
Carry out ground construction for example in the method for coating, lining, resin slurry etc., the resin slurry method is most widely used general because its outstanding physicals produces the product of semi-permanent structure.Yet, have in the resin slurry method some shortcomings for example with concrete floor bonding insufficient, construction procedure is complicated, the covering with paint state is not meticulous.
For remedying offending covering with paint state in the coating method, the present inventor attempts using disclosed epoxy resin mortar composite in the Korean Patent 0145117.Yet,, thereby tested other and improved the method for shortcoming because the quite complicated construction procedure of this method is considered to quite inefficient.
The common process of epoxy resin mortar constructional method comprises: the 1) sandblast of concrete floor (substrate); 2) undercoat; 3) shovel is scraped; 4) lay; 5) press forming is plastered; 6) strengthen coating; 7) surface daub on a wall; With 8) setting coat.
The inventor's Thiso-type coating constructional method comprises: the 1) sandblast of concrete floor (substrate); 2) undercoat; 3) shovel is scraped; 4) lay mortar; 5) press forming is plastered; 6) strengthen coating; 7) Thiso-type coating; With 8) surface daub on a wall and setting coat.This method provides the fineness and the workability of improvement, yet, still exist and improve the space of for example shortening construction period and method steps.
As described, epoxy resin mortar surface construction method is that the whole world is extensive use of.Yet this method and ordinary method are closely similar, thereby need development more competitive method aspect quality, construction workability and cost.
Usually use in the constructional method of Resins, epoxy, the resin with medium level viscosity mixes with artificial silica sand or coloured silica sand, sprawls about 3 then to about 5 millimeters thickness on concrete floor, then uses the finishing mill press forming to plaster.The resin that uses in the aforesaid method has good flowability, has medium level viscosity, with the silica sand good mixing, also provides easier press forming to plaster.Yet its shortcoming is only to plaster and to keep the shape of screed when using a spot of resin of amount of predetermined relative silica sand.That is to say, from the effect angle, consider physicals, it needs to have cohesiveness to suppress mobile because of high viscosity or maintenance high viscosity state.Yet immobilising resin is full of inorganic materials (except that silica sand) in a large number, because its viscosity and opacity are difficult to obtain desirable plastering or its finished product.Thereby ordinary method can not reduce method steps or meticulous surface is provided.
Use in the ordinary method of epoxy resin mortar, about 10 resins to about 12 weight parts mix the formation screed with the silica sand of 100 weight parts, and its construction limitation on the ground.If resin content is higher than above-mentioned content, it can not be constructed owing to its viscosity, can not form desirable surface shape, because resin points to the one side with lower height.
The mortar surface that forms by the mixture that uses according to the above-mentioned resin of above-mentioned blending ratio and silica sand may have the space after curing, thereby must use the about 15 silica sand blended mixtures to the resin of about 20 weight parts and about 100 weight parts to pass the surface by infiltration to be full of the space.Behind completion of cure, use the mixture of silica sand of resin/every about 100 weight parts of about 3 weight parts to carry out surface daub on a wall and setting coat then with the desirable surface of final acquisition.Usually, the surface of finishing as the result of complicated construction step has higher physical strength, also has desirable semipermanent function.Although produce concrete surface that this method of good physical can protect generation in order to avoid weathering, its constructional method is quite complicated, also can not set up uniform physicals on whole surface when the surface is quite big.In addition, it usually causes offending coating surface, and screed may come off thereby increases the claim of the defectiveness that carries out construction and the expense of its generation from upper layer.
Mention the effect and the feature of component that can be by ideal glued construction between organic materials and the inorganic materials and the optimized epoxy resin mortar composite of ideal blending ratio thereof, within the crystalline structure of silica sand, form and have the high-intensity space that can absorb resin.In addition, when the space is full of with composition, appear to have the globality of height thus.Usually, the proper mixture ratio example can obtain the increase of physicals between organic materials and the inorganic materials.
In conventional composition epoxy resin, the optimization of physicals is mixed by mineral filler, lime carbonate, silicon-dioxide, steatitic and is formed and carry out to about 3.5 μ m limitation of size by being crushed to about 3 in principle.Yet, in wadding or coating, use mineral filler greater than 30 weight parts based on the resin of 100 weight parts, cause the deterioration of physicals.
Simultaneously, when comprising in the composition that forms based on the resin of 100 weight parts about 350, can show good physicals by the silica sand that the crystal grain of the about 1mm of diameter with suitable dimension is formed to the silica sand of about 400 weight parts during as inorganic materials.In resin, improve combination of strength thing embodiment preferred by the mineral filler that adds increasing amount according to ASTM D 695 tests.For example, about 30 weight parts of amount of mineral filler adding after pulverizing are based on the resin of 100 weight parts, its after fixing, and the compressive strength of generation is 650kg/cm
2After the resin slurry composition as the silica sand (based on 100 parts by weight of epoxy resin) of inorganic materials that comprises about 350 to the about 1mm of size of about 400 weight parts solidified, the compressive strength that the silica sand of use produces when being artificial silica sand was for about 900 to about 950kg/m
2, and the silica sand that uses when being natural silica Sand compressive strength for about 1,100 to about 1,200kg/cm
2Thereby clear and definite is to compare concrete substantially about 4 to 5 times by the compressive strength that aforesaid method produces.
Yet, when common complicated construction method is carried out surface construction, even use the above-mentioned composition that comprises optimized blending ratio between resin and the silica sand, also usually cause the physicals of offending surface and deterioration, because can not obtain between resin and the silica sand about 100: 350 to about 100: 400 optimum mixture ratio example.Thereby the practical problems that runs in the practice of construction place (comprising the cohesiveness problem between concrete floor and the coating composition) is described below.
The resin slurry constructional method is included on the concrete floor about 3 to about 5mm the coating composition of laying depth and press forming and plasters.In this method, if resin content surpasses 12 weight parts (based on the silica sand mortar of 100 weight parts), it has several critical defects, and it can not be shaped owing to resin flow, because its viscosity can not be carried out float work, can not permeate and fill inner space effectively.In addition, because the self-leveling energy of infiltration resin, it points to has one side of lower height, thereby causes arranging uniformly between resin and the silica sand, appear the curved surface of screed by original state, need to add other resin then and finish construction procedure so that smooth surface to be provided.This method is quite complicated, because it needs the material of many costlinesses, so also be inefficient.In addition, the surface of generation is not the meticulous but coarse curved surface that exposes, thereby demonstrates qualitative defective.
Recently, proposed to remedy the not method of fine mode (after setting up screed by producing) of surface by infiltration enhanced step, by mixing consequently resin porous not in the enhancing process with the silica sand of pulverizing, thereby only as coating method covering surfaces layer.Yet the disadvantage of this method is that physicals deteriorates significantly, because inner space resin of no use is filled, the application of this method is only limited to ground construction.In addition, the offending surface of generation hinders the use of coloured silica sand, thereby the function of mortar method and character have worsened many.
In addition, in order to obtain mechanical property on the concrete floor, be important owing to have globality with the avidity on ground when forming second coating and safeguard physicals.
Up to now, tackiness agent (priming paint) has been used to increase cohesiveness, yet these tackiness agents comprise lower boiling solvent, thereby are pernicious to people, neither be eco-friendly.In fact, the two all is the no adhesion type for the concrete surface of chemical resin and alkalescence, thereby resin can fulfil the function of tackiness agent because after the permeation interspaces in concrete it round the silica sand of inside.Yet, because concrete structure increases recently in proportion, the trend of using mechanical method being arranged, this causes dense surface, high basicity and is difficult to infiltrate concrete surface, thereby can not have enough cohesiveness.In addition because the cohesiveness that causes of wrongful envrionment conditions reduces, relative humidity, water-content with since sooner or later the inconsistent of the different shrink/expanded coefficients of temperature be the major cause of disengaging.
Solve the above-mentioned cement composition of mentioning and utilize it to carry out the problem of surface construction; the present inventor thinks; should not be used as optional step to the method for protection and reinforcement concrete surface; but necessary step; in this; they find that the resin slurry composition that will have medium level viscosity usually changes the state with very low-level transparency or immobilising opaqueness into and can make whole construction procedures complete, thereby reduce complicated construction procedure significantly and remedy the problem that appears curved surface and phenomenon that resin points to the one side with lower height.
The present inventor finds, when the multi-functional priming paint that is disclosed in Korean Patent 0167858 or be disclosed in its improvement modification (two patents are all by inventor herein's invention) coating, the curing on concrete floor of korean patent application 10-2002-30103, when being used for the resin slurry construction then, it can improve the cohesiveness between resin slurry layer and the non-cohesive concrete surface widely, also make the mortar construction needn't use priming paint on wall that does not require mechanical property or pavement surface, to carry out, thereby finish the present invention.
In addition, plaster or the construction period of finishing mill when shortening by common craft utilizing the machine to lay simultaneously with float work to make, the present inventor also finds can easily lay when ground construction if electric motor and sparger link together, be connected to the front of sparger by the rectangle stainless steel plaster trowel that will have curved surface, form smooth surface because its vertical movement is made firm by ramming through pressure.
Summary of the invention
Thereby, the object of the invention provides new epoxy resin mortar composite, and described composition can shorten construction period greatly, has cost benefit owing to reduce the use of the material that needs, because resin and silica sand are arranged the enhanced mechanical property uniformly in mortar, meticulous coating surface also is provided.
Another object of the present invention provides the method for the resin slurry construction method that is used to use epoxy resin mortar composite.
DESCRIPTION OF THE PREFERRED
The present invention relates to comprise the composition epoxy resin material of Resins, epoxy and solidifying agent, described material and silica sand are blended in coating on the concrete floor, and described composition comprises two kinds of components of preparation respectively:
(a) first component resin of 100 weight parts, described resin comprises:
I) about 70 epoxies to about 80% weight;
Ii) about 10 reactive thinners to about 20% weight;
Iii) about 1 non-activated thinner to about 5% weight;
Iv) about 1 mineral filler to about 5% weight;
V) about 1 aggregating agent prepared therefrom (thiso-type agent) to about 4% weight;
Vi) about 1 fire retardant to about 2.5% weight; With
Vii) about 0.05 defoamer to about 0.1% weight,
With
(b) about 30 the second component solidifying agent to about 50 weight parts, described solidifying agent comprises:
I) about 30 aliphatic amines to about 60% weight;
Ii) about 20 commutative reaction promotors to about 40% weight;
Iii) about 5 alicyclic primary amines to about 20% weight;
Iv) about 5 promotor to about 15% weight; With
V) about 1 addition agent to about 8% weight.
Composition epoxy resin of the present invention comprises the low viscosity resin component (preventing that it from flowing to or pointing to when mixing with silica sand on one side) and about 30 solidifying agent to about 50 weight parts (mixing with resin Composition in the construction site) of 100 weight parts.Above-mentioned resin combination is compared with common resin combination has lower viscosity, thereby can help to prepare immobilising resin combination, can be used to carry out the construction of concrete floor or wall surface by this immobilising composition epoxy resin is mixed the resin slurry composition that produces with silica sand.
As hereinafter illustrating, described very much the present invention in detail.
The present invention relates to comprise the composition epoxy resin of Resins, epoxy and solidifying agent, described composition and silica sand are blended in coating on the concrete floor, and described composition comprises two kinds of components of preparation respectively:
(a) first component resin of 100 weight parts, described resin comprises:
I) about 70 epoxies to about 80% weight;
Ii) about 10 new glycidyl monomer reactivity thinners to about 20% weight;
Iii) about 1 at least a non-activated thinner that is selected from ethyl cellosolve and dimethylbenzene to about 5% weight;
Iv) about 1 mineral filler to about 5% weight;
V) about 1 silicon-dioxide to about 4% weight (silicone dioxide) is as aggregating agent prepared therefrom;
Vi) about 1 to the pentabromodiphenyl oxide of about 2.5% weight as fire retardant; With
Vii) about 0.05 to the polysiloxane of about 0.1% weight as defoamer,
With
(b) about 30 the second component solidifying agent to about 50 weight parts, described solidifying agent comprises:
I) about 30 polyoxypropylene amine to about 60% weight;
Ii) about 20 to the commutative reaction promotor of the aniline of about 40% weight;
Iii) about 5 Triethylenetetramine (TETA) or ethylidene triamines (ethylenetriamine) to about 20% weight;
Iv) about 5 phenyl promotor to about 15% weight; With
V) about 1 epoxy addition agent to about 8% weight.
When the preparation above-mentioned composition, can also use low viscous monomer or aggregating agent prepared therefrom with epoxide group except above-mentioned reactive thinner.The example that can be used for thinner of the present invention is that new carboxylic acid glycidyl ether, phenyl glycidyl ether, butylglycidyl ether and aliphatic 3 officials can epoxy compoundss.
The example of aggregating agent prepared therefrom is the Chop Abestos (RG-244 of silicon-dioxide and pulverizing
) or the Garamite thixotropic agent (BYK Co., Ltd., Germany).Yet asbestos itself are carcinogenic materials, thereby ban use of.The Garamite thixotropic agent can be used to prepare some opaque resin compositions.
Non-activated thinner can add and be less than 3% (based on the base resin of 100 weight parts).Yet low boiling point solvent for example MK and acetone cannot use in the cement composition of formability, even because also suppress solidification process when a small amount of when it adds.And medium or high boiling solvent for example ethylene glycol butyl ether, alcohol, MYBK and hexanaphthene can use less than 3% approximately.
Composition epoxy resin of the present invention comprises discharge ring epoxy resins, reactive thinner (monomer), non-activated thinner, aggregating agent prepared therefrom, mineral filler, fire retardant, defoamer, color base, solidifying agent, curing catalyst etc.Being characterised in that especially of composition epoxy resin of the present invention do not resemble common composition, but by causing composition not flow having under the very low viscous flow state to mix with solidifying agent and to substitute with it.
Resin combination of the present invention has two kinds of independent components, and described composition comprises:
(a) resin Composition, described resin Composition prepares by following steps:
(i) the discharge ring epoxy resins is mixed with reactive thinner and non-activated thinner to reduce viscosity;
(ii) the mixture that produces is mixed with commutative aggregating agent prepared therefrom; With
(iii) comprise and make under the solidifying agent situation of alicyclic primary amine that the mixture that produces has immobility, mix with defoamer then in adding;
With
(b) solidifying agent, described solidifying agent comprises:
(i) can with the reaction promotor of alicyclic and aliphatic amine exchange;
(ii) curing catalyst; With
(iii) addition agent.
Two kinds of independent component original positions of the resin combination of above-mentioned preparation are mixed, and further add silica sand is used for the resin slurry construction with preparation resin slurry composition.
When needing opaque composition, can further add mineral filler for the purposes of determining.
The present inventor much tests with regard to processability and the physicals that is suitable for the composition of mortar construction method of the present invention, has successfully reduced construction procedure (reducing to 4 from the 8 initial steps goes on foot).In addition, to walkway, wall, ladder, corridor or when using the place (all these do not require mechanical property) of coloured silica sand to carry out surface construction, construction procedure reduced to for 2 to 3 steps.Further, the various advantages of composition exhibiting of the present invention: can reduce construction procedure; Intensity that is improved and the very fine facing that is coated with; With in the work of using machine, provide convenience.
According to the present invention, when two kinds of components that prepare respectively of the resin combination that comprises resin Composition and curing composition are mixed at the construction field (site) according to predetermined blending ratio, may obtain to reduce the resin combination under viscosity and the more low-gravity stagnant condition, described resin Composition comprises medium level liquid epoxy base resin, reactive thinner, non-activated thinner, aggregating agent prepared therefrom, fire retardant and defoamer, and described curing composition comprises solidifying agent, tradable reaction promotor, alicyclic primary amine, curing catalyst and addition agent.
Preferred embodiment about every kind of component concentration of the present composition has hereinafter been described.
In a preferred embodiment of the invention, the first component resin component of composition is prepared as follows: i) heated epoxies about 30 minutes at 80 ℃; Ii) product is added tempering tank, wherein added reactive thinner and non-activated thinner high-speed mixing about 30 minutes; Iii) tradable aggregating agent prepared therefrom, fire retardant, filler and defoamer are joined in the said mixture and and mix its product; Iv) use the 3bon roll to carry out pressure mixing (transparent resin composition does not just add mineral filler if desired); V) by the defoaming device scumming.
In a preferred embodiment of the invention, the second component curing component of composition is prepared as follows: i) aliphatic amine, cycloaliphatic amines and commutative reaction promotor are added retort and mixing therein; Ii) in 40 ℃ of heated mixt and slowly mixing; Iii) further add cycloaliphatic amines.
So the resin Composition of the composition epoxy resin of preparation and two kinds of liquid-type components of curing component are preferably mixed about 30 curing components to about 50 weight parts in the construction site with the resin Composition of 100 weight parts.The result that above-mentioned blending ratio is based on the in-situ applications of various ratios between a lot of experiments and test resin Composition and the curing component obtains.If the content of curing component surpasses the immobility of the composition that above-mentioned content just cannot obtain to produce, the while physical and mechanical property of composition also can worsen, thereby its function can not be provided.In fact, only the composition according to the preparation of the blending ratio between two kinds of components of above-mentioned recommendation can allow to become immobilising, do not have common viscosity, therefore by subsequently mix dimorphism and the formability of improving it with the silica sand original position in the construction site, have lower proportion, also make the mortar construction be applied to the surface of concrete floor, wall, bending position etc.
When preparation composition of the present invention, can also add pigment except aforesaid component.The pigment that can add is considered the proportion or the screening ability of selected pigment, uses about 1 to 30 weight part based on the resin Composition of 100 weight parts usually.
As indicated above, the resin combination with two kinds of liquid ingredients that prepare respectively of the present invention can quite freely be controlled its flowability, thereby can be applied to concrete floor, wall, slope and curved surface suitably.More specifically, the silica sand based on 100 weight parts preferably uses about 30 parts by weight of epoxy resin compositions.When above-mentioned composition epoxy resin with above-mentioned blending ratio being applied to the resin slurry construction, all spaces in the construction layer are full of with resin Composition, thereby shorten construction period up hill and dale, improve physicals and attractive in appearance.
In other embodiments of the present invention, provide the constructional method of using composition epoxy resin of the present invention.Although mortar constructional method of the present invention is similar to ordinary method substantially.Yet method of the present invention is different from the ordinary method part greatly and is, it uses the composition of aforesaid special preparation and priming paint and it can use machine.Method of the present invention can be used in a different manner.
The present invention provides especially by Resins, epoxy is mixed with silica sand, uses mortar to carry out surface construction with in the method that needs to form on the concrete surface of mechanical property screed, and described method comprises:
(a) the concrete floor sandblast is to remove irregularity and laitance (laitans);
(b) multi-functional priming paint tackiness agent coating on concrete floor;
(c) composition epoxy resin that will comprise Resins, epoxy and solidifying agent mixes with silica sand, by the formation screed of plastering on the surface that produces; With
(d) with the described composition epoxy resin that comprises Resins, epoxy and solidifying agent on the surface that produces coating to form coatings.
In preferred embodiments, the invention provides by Resins, epoxy is mixed with silica sand, use mortar to carry out surface construction with in the method that needs to form on the concrete surface of mechanical property screed, described method comprises:
(a) the concrete floor sandblast is to remove irregularity and laitance;
(b) multi-functional priming paint tackiness agent coating on concrete floor;
(c) the composition epoxy resin shovel that will comprise Resins, epoxy and solidifying agent is scraped on the surface that produces; The composition epoxy resin that will comprise Resins, epoxy and solidifying agent simultaneously mixes with silica sand, forms screed on the surface that produces; With
(d) composition epoxy resin that will comprise Resins, epoxy and solidifying agent on the surface that produces coating to form coatings.
In another embodiment preferred, the invention provides by Resins, epoxy is mixed with silica sand, use mortar to carry out surface construction not require the method that forms screed on the concrete surface of mechanical property, described method comprises:
(a) the concrete floor sandblast is to remove irregularity and laitance; With
(b) composition epoxy resin that will comprise Resins, epoxy and solidifying agent mixes with silica sand, by the formation screed of plastering on the surface that produces.
In a more preferred embodiment, the invention provides by Resins, epoxy is mixed with silica sand, use mortar to carry out surface construction not require the method that forms screed on the concrete surface of mechanical property, described method comprises:
(a) the concrete floor sandblast is to remove irregularity and laitance; With
(b) the composition epoxy resin shovel that will comprise Resins, epoxy and solidifying agent is scraped on the surface that produces; The composition epoxy resin that will comprise Resins, epoxy and solidifying agent simultaneously mixes with silica sand, forms screed on the surface that produces.
Coatings by coating on the screed of mortar construction formation of the present invention can be used with transparent or coloured opaque relief shape as required.
In other embodiments, the present invention relates to the constructional method of concrete surface, wherein be full of with resin in the space between the silica sand on the mortar surface that press forming on the concrete surface is plastered.
When the application of epoxy composition, before forming screed on the concrete surface, apply multi-functional priming paint tackiness agent in the place that needs mechanical property by using the resin slurry composition.The multifunctional type priming paint that the present invention uses is preferably the multi-functional priming paint tackiness agent of water-soluble 3 components.For example, the preferred inventor is disclosed in the multi-functional priming paint tackiness agent among the korean patent application 10-2002-0030103.
In preferred embodiments, the invention provides the multi-functional priming paint tackiness agent that comprises three kinds of components:
(a) resin Composition of 100 weight parts, described resin Composition comprises:
I) about 40 epoxies to about 50% weight;
Ii) about 25 at least a non-activated thinners that are selected from ethyl cellosolve, butanols and dimethylbenzene to about 35% weight;
The iii) about 2 E-EPO emulsifying agents to about 4% weight (Cell Chemical Co., Ltd., Korea);
Iv) about 1 silica aggregate agent to about 3% weight;
V) about 0.01 polysiloxane defoamers to about 0.1% weight; With
Vi) about 20 water to about 35% weight;
(b) about 30 solidifying agent to about 40 weight parts, described solidifying agent comprises:
I) about 60 amido solidifying agent to about 70% weight;
Ii) about 1 phenolic group promotor to about 10% weight; With
Iii) about 20 ethyl cellosolves to about 35% weight; With
(c) about 50 filler components to about 100 weight parts, described filler component comprises:
I) about 80 cement to about 95% weight;
Ii) about 1 aluminum oxide to about 10% weight; With
Iii) about 10 calcium hydroxides to about 10% weight.
In addition, the present invention relates to comprise the resin slurry composition of Resins, epoxy and curing composition, its mixture was united with silica sand afterwards, wherein above-mentioned epoxy resin ingredient uses about 20 to about 50 weight parts (based on the artificial or natural silica Sand of 100 weight parts), and preferred about 27 to about 33 parts by weight of epoxy resin components.If resin content be lower than above-mentioned content will form with conventional composition in the same space, thereby reduce physicals.If surpassing above-mentioned scope, resin content will cause inferior workability and offending constructing structure, because it needs other construction procedure to fill the space.
Mortar constructional method of the present invention is described in more detail at this.Mortar constructional method of the present invention uses composition epoxy resin to strengthen concrete surface when flooring material is provided.More specifically, aforesaid method comprises: a) ground sandblast, described ground comprise and spreading out after the concrete by the ground of finishing mill compacting, conventional color stiffening agent ground, the ground of plastering after spreading out with concrete and other concrete structure; B) the aforesaid multi-functional priming paint tackiness agent of coating then solidifies to have about 0.1 to about 0.2mm thickness; C) composition epoxy resin that do not flow of the present invention mixes with silica sand and spreads out then on above-mentioned prime coat, wherein use about 200 to about 0.3 to about 2mm the silica sand of the size of about 500 weight parts (based on 100 parts by weight of epoxy resin compositions), preferred about 350 to about 400 weight parts.Here, the about 1mm of thickness that ground can coating or more than, the about 10mm of thickness that wall or top ceiling can coatings.
Compare with common mortar construction, the advantage of mortar constructional method of the present invention is that it provides and is easy to plaster, because composition is sticking, it also provides very fine and is coated with facing and does not stay any space on curved surface, thereby obtains good physicals and outside surface attractive in appearance.
In order to provide the convenience in the mortar construction can use the automatization plastering method, described construction comprises in the present invention: on ground and require the part primer coating of mechanical property and solidify; By using mixing tank that composition epoxy resin and silica sand are mixed with resin slurry composition of the present invention; Using machine to lay simultaneously with pressure plasters.Described the automatization plastering method here in detail.Composition epoxy resin of the present invention mixes in mixing agitator according to predetermined ratio fully with silica sand, then with the sparger of mix transportation in the mechanical float, allow it to travel forward during machine operation here, the resin slurry composition is released downwards in the lower part of sparger during this period, lays certain thickness under suitable control automatically.More specifically, be provided at the oval plaster trowel of sparger back, because its vertical pressure that moves through is made the smooth surface of formation firm by ramming.In addition, it can be applied to make plasters or the constructional method of finishing mill by hand, and the methods that construction was formed via 4 steps are finished.These can not use the place of machine to for example ladder, corridor and wall, can use trowel.To not requiring the part of mechanical property, constructional method can reduce to for 1 or 2 steps.
At this function and effect about the immobilising composition epoxy resin of the present invention have been described.
The common resin that is used for resin slurry construction uses its natural flowability for from levelling.Thereby when carrying out float work, silica sand and resin must mix with 100: 10 weight part ratio.Yet, forming the space behind the float work, the space must be full of afterwards.This is because if resin content is higher than aforementioned proportion because the resin flow screed can not be kept its shape.In addition, because resin is a viscosity, it is easy to adhere to plaster trowel, thereby can not carry out float work.That is to say, traditional mortar constructional method has workability by the screed of keeping between above-mentioned silica sand and the resin 100: 10 blending ratio, because the space that keeps in the mortar behind float work, it can not provide initial mechanical function, also is easy to pollute.Thereby the space is full of with resin.When the space is full of with resin, allow the smooth surface of resin formation, the screed of the exposure of higher and lower height is also arranged.If the carrying out that is full of method is mainly based on the surface of high height, it is quite complicated that method just becomes, and also just is difficult to obtain desirable surface.
The all resins content that uses in entire method is for about 25 to about 35 weight parts (based on the silica sand of 100 weight parts).Although above-mentioned blending ratio provides good physicals, resin can not infiltrate the inside of screed equably.In addition,, can not obtain the evenly distributed of resin and silica sand, thereby need a large amount of extra resins to cover the curved part that exposes at the curved part of buildup of resin.In addition, it has several other shortcomings: overall physical properties is inhomogeneous; Coating surface is not meticulous; Can not use coloured silica sand construction, its method very complexity has many steps, because of rather than cost effective.
In the resin slurry construction method that uses immobilising composition epoxy resin of the present invention, because the immobility of composition epoxy resin, about 20 resins to about 50 weight parts (composition epoxy resin) can mix immediately with the silica sand of 100 weight parts.Because the resin that is blended in during the press forming float work of a large amount of resins flows everywhere or disperses, but it has considerably increased the globality with silica sand, keeps desirable surface shape on surface crooked or that tilt.
In addition, about 20 resin contents to about 50 weight parts (based on the silica sand of 100 weight parts) refer to all resins content, comprise being used for strengthening the resin content of step and the resin content that is used to form screed in the construction of conventional resins mortar.That is to say, resin slurry construction method of the present invention carries out press forming plasters, and only uses once to all resins content that the coating method that just finishes uses from initial plastering method, thereby good physicals is provided, have uniform resin and arrange, screed does not produce the space.
As described, the present invention reduces method steps by using immobilising composition epoxy resin.Do not resemble conventional resin slurry constructional method, described method comprises: the 1) sandblast of concrete floor (substrate); 2) undercoat; 3) shovel is scraped; 4) mortar coating; 5) use the finishing mill press forming to plaster; 6) strengthen by infiltration; 7) inter coat; With 8) surface daub on a wall and setting coat; When using coloured silica sand, the present invention comprises: the 1) sandblast of concrete floor (substrate); 2) undercoat; 3) coating of resin slurry composition; With 4) surface daub on a wall; When construct in the place that does not require mechanical property, the present invention can carry out by undercoat, comprises for 2 steps: the 1) coating of the sandblast of concrete floor (substrate) and resin slurry composition, after this resin slurry coating, then finish construction through float work.
About comprising in the resin slurry constructional method of the present invention that forms screed that using epoxy resin mortar to form screed shovels the method for scraping simultaneously and need not shovel the method that forms screed of scraping.Yet, preferably have shovel and scrape method.
In resin slurry constructional method of the present invention, when using finishing mill on the ground, the whole construction method can reduce to identical level, and the mechanical float of the present invention's research and development can lay and press forming is plastered, thereby provides convenience and reduce cost.
In addition, use in the resin slurry constructional method of machine in the present invention, following feature is conspicuous especially.That is to say that use the air nozzle than the front of lower part be installed in the container that is used for the resin slurry composition to shovel and scrape, wherein sparger has been equipped with electric motor so that the automatic motion of forward and backward directions to be provided.Further, by container release the resin slurry composition downwards than lower part, be installed in the stainless steel knife of rectangle that there is curved part the sparger back, because its vertical movement is made firm by ramming by pressure and helped to form flat surfaces.
As mentioned above, surface construction method of the present invention comprises: the primary coat of multi-functional priming paint (tackiness agent) on concrete floor, and wherein said priming paint is invented by the inventor, is disclosed among the korean patent application 10-2002-0016876; By using resin slurry composition (mixture of immobilising composition epoxy resin and silica sand) on concrete floor, to form screed; The manual press forming of use trowel or machine is plastered and is had the workability of improvement, also is that cost is effective, can carry out various concrete surfaces constructions.
The present invention is based on the following example and explained in more detail, however the scope that they should not be construed as limiting the invention.
Embodiment
Embodiment 1
1. the preparation of resin Composition (first composition)
Epoxy (1) 37.700g
Epoxy (2) 37.700g
Reactive thinner (3) 16.856g
Non-activated thinner (4) 1.880g
Non-activated thinner (6) 1.130g
Aggregating agent prepared therefrom (7) 3.770g
Fire retardant (8) 1.880g
Defoamer (9) 0.084g
Amount to 100.000g
2. the preparation of curing component (second composition)
Solidifying agent (10) 17.47g
Curing catalyst (11) 11.65g
Solidifying agent (12) 5.49g
Addition agent (13) 1.94g
Curing catalyst (14) 3.43g
Amount to 40.00g
Above-mentioned composition mixes in the construction site, so composition epoxy resin is by being mixed with resin combination (first composition) and curing composition (second composition) the weight part ratio with 100: 40, composition epoxy resin mixes with 100: 350 weight part ratio with silica sand again then.The resin slurry resin of Chan Shenging is used in the concrete floor mortar constructional method then.Because this composition has higher resin content, constructional method is carried out well in press forming is plastered, and mobile everywhere or shape is broken.
The details of component comprise that their manufacturers is as follows:
(1) epoxy: (multipolymer of epoxy chloropropane and bis-phenol) n=0 ' liquid state (Kukdo Chemical Co., Ltd., Korea)
(2) epoxy: chloride (multipolymer of epoxy chloropropane and bis-phenol) n=0, liquid state (Kukdo Chemical Co., Ltd., Korea)
(3) reactive thinner: the new glycidyl ether of monomer (Neo-e) (Dot Kasei Co., Japan)
(4) non-activated thinner: ethyl cellosolve-glycol monomethyl ethyleneether acetic ester (Ethylene glycol monoethylene ether acetaea) (Union Co., Ltd., USA)
(5) non-activated thinner: dimethylbenzene (LG-CALTEX Oil Corporation, Korea)
(7) aggregating agent prepared therefrom: silicon oxide (Degussa Co., Ltd., Germany)
(8) fire retardant: pentabromodiphenyl oxide (Grade lakers Co., Ltd., USA)
(9) defoamer: polysiloxane (BYK Co., Germany)
(10) solidifying agent: polypropylene amine (Texaco Co., Ltd., USA)
(11) solidifying agent: phenol aniline (Mitsui Dowasu, Japan)
(12) solidifying agent: Triethylenetetramine (TETA) (Mitsui Dowasu, Japan)
(13) epoxy: (Kukdo Chemical Co., Ltd., Korea)
(14) phenol: not addition (Korea Kumho Petrochemical Co., Ltd., Korea)
EXPERIMENTAL EXAMPLE 1
After the sandblast, the concrete floor multi-functional priming paint of epoxy (the korean patent application 10-2002-0016876 that shows among the embodiment 1, the improvement invention of korean patent application 10-2002-0016876 in the past) coating, described priming paint has improved the function and the performance of former modification of the priming paint tackiness agent (MNA) of the present inventor invention that is disclosed in the Korean Patent 0167858 greatly, (KRICT) is evaluated as outstanding product by Korea Research Institute of Chemical Technology (Korea S's chemical institute); First composition and second composition mix with 100: 40 weight part ratio then.Simultaneously, prepare the artificial and natural silica Sand of the diameter 1mm thickness of 100 weight parts respectively, add the above-mentioned blended composition epoxy resin of 30 weight parts, suppress the 5mm thickness of plastering then on above-mentioned concrete surface, setting coat is less than 0.5mm thickness subsequently.The test of carrying out after 72 hours shows that it has good physicals: cohesiveness (binding property) (39kgf/cm
2); The compressive strength of artificial silica sand (950-1,100kgf/cm
2), the compressive strength of natural silica Sand (1,200-1,300kgf/cm
2), tensile strength (950-1,100kgf/cm
2).
From the The above results expection, when the resin combination according to the present invention's preparation mixed in the construction site, resin does not flow everywhere or shape is broken, and the result has formed meticulous surface.In addition, the construction procedure of simplification is provided convenience, because its physicals outstanding aspect binding property is also very effective as flooring material.
EXPERIMENTAL EXAMPLE 2
Composition in the EXPERIMENTAL EXAMPLE 1 according to KS F5000:1990 standard testing, compares its result and those results that obtain by the ground composition of test concrete structure in the laboratory.Concrete sample to be tested is prepared into 1200 * 1200 * 200mm size, solidified 28 days at 20 ℃, then through grinding for example laitance of sand blasted surface, the test of compressive strength is under three conditions: air is done condition, wet condition and surperficial dried saturation conditions, carries out according to the test of ASTMD 4541:1985 cohesiveness, JIS K 6911 tested for tensile strength and ASTM D 695 test compression intensity.After 12 hours, first composition of 100 weight parts mixes the acquisition composition epoxy resin with second composition of 40 weight parts at 20 ℃ of multi-functional priming paint that apply above-mentioned composition down.Then, the silica sand of 100 weight parts mixes with the above-mentioned composition epoxy resin of 30 weight parts, mixture is suppressed the thickness of the 5mm that plasters on the solidified prime coat.Then, above-mentioned composition epoxy resin is the thickness of coating 0.5mm here, and the Surface Physical performance is done measurement after 24 hours under the condition at 20 ℃ at air.The result is as follows: surface adhesion (35kgf/cm
2); Dried saturated mode (the 39.2kgf/cm in surface
2), hygrometric state (37.7kgf/cm
2).Other use in the test of the different samples that prepare according to different standards, and the result is as follows: the tensile strength (470kgf/cm of artificial silica sand
2), the compressive strength of artificial silica sand (1,100kgf/cm
2), the tensile strength of natural silica Sand (1,250kgf/cm
2).
As shown in above-mentioned EXPERIMENTAL EXAMPLE 1-2, resin slurry constructional method of the present invention is used immobilising composition epoxy resin, shows the outstanding physicals as flooring material.
As mentioned above, composition epoxy resin of the present invention comprises the composition (resin combination and curing agent composition) of two kinds of independent preparations; Wherein resin combination comprises discharge ring epoxy resins, reactive thinner, non-activated thinner, aggregating agent prepared therefrom, fire retardant and defoamer, curing agent composition comprises polyamine, polypropylene amine, Triethylenetetramine (TETA), phenylaniline, phenol promotor, does not contain any additives (added agent), alicyclic compound and other component as curing component.Different with conventional resin combination, composition epoxy resin of the present invention is that low viscosity is immobilising, when being used as coated material in the construction of concrete floor mortar, this can provide the outward appearance with meticulous covering with paint of improvement, shortens construction period and cost efficiency is provided.
Particularly under the ground construction situation, constructional method of the present invention can adopt machine, thereby shortens construction period, provides cost effectively to construct.
In addition, the present invention adopts multi-functional priming paint as tackiness agent when mortar is constructed, and described priming paint is eco-friendly, and alkaline concrete surface is also had higher avidity, thereby improves the physicals of the structure that produces greatly.
The present invention obtains describing in detail with reference to its preferred embodiment.Yet, be appreciated that those skilled in the art can revise and improve according to the disclosure in the scope of the invention and spirit.
Claims (13)
1. composition epoxy resin, described composition comprises Resins, epoxy and solidifying agent, and described composition mixes back coating on concrete floor with silica sand, and described composition comprises the components of two kinds of independent preparations:
(a) first component resin of 100 weight parts, described component comprises:
I) about 70 epoxies to about 80% weight;
Ii) about 10 reactive thinners to about 20% weight;
Iii) about 1 non-activated thinner to about 5% weight;
Iv) about 1 mineral filler to about 5% weight;
V) about 1 aggregating agent prepared therefrom to about 4% weight;
Vi) about 1 fire retardant to about 2.5% weight; With
Vii) about 0.05 defoamer to about 0.1% weight,
With
(b) about 30 the second component solidifying agent to about 50 weight parts, described component comprises:
I) about 30 aliphatic amines to about 60% weight;
Ii) about 20 commutative reaction promotors to about 40% weight;
Iii) about 5 alicyclic primary amines to about 20% weight;
Iv) about 5 promotor to about 15% weight;
V) about 1 addition agent to about 8% weight.
2. the composition epoxy resin of claim 1, wherein said composition also comprises based on 100 weight parts, first composition resin about 1 pigment to about 30 weight parts.
3. the composition epoxy resin of claim 1, wherein said composition adopt the glycidyl ether of the low viscosity monomer with epoxide group as reactive thinner, Chop Asbestos (RG-244
) or the Garamite thixotropic agent as aggregating agent prepared therefrom.
4. the composition epoxy resin of claim 1 wherein presents under the situation of opaque color at described composition, and described mineral filler comprises and is selected from silicon-dioxide, lime carbonate and steatitic inorganic substance.
5. the composition epoxy resin of claim 1, wherein in process is plastered in compacting, silicon-dioxide artificial, natural based on being selected from of 100 weight parts and coloured silica sand add about 20 to the described composition epoxy resin of about 50 weight parts to mix.
6. one kind is used mortar to carry out surface construction forms screed on concrete surface method by Resins, epoxy and silica sand are mixed, and described method comprises:
(a) the concrete floor sandblast is to remove irregularity and laitance;
(b) multi-functional priming paint tackiness agent coating on described concrete floor;
(c) composition epoxy resin that will comprise Resins, epoxy and solidifying agent mixes with silica sand, by the formation screed of plastering on the surface that produces; With
(d) the described composition epoxy resin that comprises Resins, epoxy and solidifying agent on the surface that produces coating to form coatings.
7. one kind is used mortar to carry out surface construction forms screed on concrete surface method by Resins, epoxy and silica sand are mixed, and described method comprises:
(a) the concrete floor sandblast is to remove irregularity and laitance;
(b) multi-functional priming paint tackiness agent coating on described concrete floor;
(c) the composition epoxy resin shovel that will comprise Resins, epoxy and solidifying agent is scraped on the surface that produces; The composition epoxy resin that will comprise Resins, epoxy and solidifying agent simultaneously mixes with silica sand, forms screed on the surface that produces; With
(d) with the described composition epoxy resin that comprises Resins, epoxy and solidifying agent on the surface that produces coating to form coatings.
8. one kind is used mortar to carry out surface construction forms screed on concrete surface method by Resins, epoxy and silica sand are mixed, and described method comprises:
(a) the concrete floor sandblast is to remove irregularity and laitance; With
(b) composition epoxy resin that will comprise Resins, epoxy and solidifying agent mixes with silica sand, by the formation screed of plastering on the surface that produces.
9. one kind is used mortar to carry out surface construction forms screed on concrete surface method by Resins, epoxy and silica sand are mixed, and described method comprises:
(a) the concrete floor sandblast is to remove irregularity and laitance; With
(b) the composition epoxy resin shovel that will comprise Resins, epoxy and solidifying agent is scraped on the surface that produces; The composition epoxy resin that will comprise Resins, epoxy and solidifying agent simultaneously mixes with silica sand, forms screed on the surface that produces.
10. among the claim 6-9, described surface construction is characterised in that and uses ordinary method for example to plaster by hand or use finishing mill or other available apparatus of plastering to lay, fills with resin in the space that exists between the silica sand on the compacting motar surface.
11. among the claim 6-9, the described composition epoxy resin that comprises Resins, epoxy and solidifying agent is identical with claim 1.
12. among the claim 6-9, described multi-functional priming paint tackiness agent comprises the component of three kinds of independent preparations:
(a) resin Composition of 100 weight parts, described component comprises:
I) about 40 epoxies to about 50% weight;
Ii) about 25 at least a non-activated thinners that are selected from ethyl cellosolve, butanols and dimethylbenzene to about 35% weight;
Iii) about 2 E-EPO emulsifying agents to about 4% weight;
Iv) about 1 silica aggregate agent to about 3% weight;
V) about 0.01 polysiloxane defoamers to about 0.1% weight; With
Vi) about 20 water to about 35% weight
(b) about 30 solidifying agent to about 40 weight parts, described solidifying agent comprises:
I) about 60 amido solidifying agent to about 70% weight;
Ii) about 1 phenolic group promotor to about 10% weight; With
Iii) about 20 ethyl cellosolves to about 35% weight; With
(c) about 50 filler components to about 100 weight parts, described component comprises:
I) about 80 cement to about 95% weight;
Ii) about 1 aluminum oxide to about 10% weight; With
Iii) about 10 calcium hydroxides to about 10% weight.
13. one kind is used mortar to carry out surface construction and forms the method for screed by using machine on concrete surface, wherein said machine comprises:
(a) be equipped with electric motor to carry out forward and the sparger of motion automatically on the both direction backward;
(b) be connected to the container bottom that is used for the resin slurry composition and shovel the air nozzle of scraping, push by described container bottom when the resin slurry composition mixes; With
(c) front that is provided to described sparger has the rectangle stainless steel plaster trowel of curved surface and since its vertical movement by the pressure tamping to form flat surfaces.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20030101023 | 2003-12-30 | ||
| KR1020030101023 | 2003-12-30 | ||
| KR1020040033677 | 2004-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1922268A true CN1922268A (en) | 2007-02-28 |
Family
ID=37779320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480042174 Pending CN1922268A (en) | 2003-12-30 | 2004-12-30 | Epoxy resin mortar composition and a method of coating the same on concrete surface |
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|---|---|
| CN (1) | CN1922268A (en) |
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| CN101121812B (en) * | 2007-07-27 | 2010-09-01 | 华南理工大学 | Epoxy resin base fast repairing material and preparation method thereof |
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| WO2009062422A1 (en) * | 2007-11-12 | 2009-05-22 | Wuhan Keda Marble Protective Materials Co., Ltd. | Epoxy-based antiskid adhesive and preparation thereof |
| CN101148572B (en) * | 2007-11-12 | 2011-05-25 | 武汉市科达云石护理材料有限公司 | Epoxy group anti-skid glue and preparation method thereof |
| AU2008323455B2 (en) * | 2007-11-12 | 2012-01-19 | Wuhan Keda Marble Protective Materials Co., Ltd. | Epoxy-based antiskid adhesive and preparation thereof |
| CN101497510B (en) * | 2009-03-03 | 2011-09-28 | 重庆鹏方路面工程技术研究院有限公司 | Modified epoxy resin concrete material and preparation thereof |
| CN102906188A (en) * | 2010-04-29 | 2013-01-30 | 泰山工程株式会社 | Environmentally friendly water-based epoxy resin composition and a use therefor |
| CN102906188B (en) * | 2010-04-29 | 2015-12-16 | 泰山工程株式会社 | Eco-friendly aqueous epoxy resins composition and use thereof |
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| CN112262115A (en) * | 2018-07-26 | 2021-01-22 | Sika技术股份公司 | Method for obtaining a concrete structure with a surface layer of resin-modified concrete |
| CN109574548A (en) * | 2018-10-29 | 2019-04-05 | 广东建科交通工程质量检测中心有限公司 | A kind of low temperature rapid curing pit repairing material and preparation method thereof |
| CN110408292A (en) * | 2019-08-21 | 2019-11-05 | 中建美科技有限公司 | Concrete anti-corrosive paint and its manufacturing method |
| CN112679171A (en) * | 2021-03-12 | 2021-04-20 | 广东博智林机器人有限公司 | Self-leveling mortar and preparation method and application thereof |
| CN112679171B (en) * | 2021-03-12 | 2021-06-08 | 广东博智林机器人有限公司 | Self-leveling mortar and preparation method and application thereof |
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