CN108587460B - Rammed earth wall surface waterproof protective agent - Google Patents
Rammed earth wall surface waterproof protective agent Download PDFInfo
- Publication number
- CN108587460B CN108587460B CN201810476229.0A CN201810476229A CN108587460B CN 108587460 B CN108587460 B CN 108587460B CN 201810476229 A CN201810476229 A CN 201810476229A CN 108587460 B CN108587460 B CN 108587460B
- Authority
- CN
- China
- Prior art keywords
- protective agent
- rammed earth
- earth wall
- water
- wall surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D189/00—Coating compositions based on proteins; Coating compositions based on derivatives thereof
Abstract
The invention provides a waterproof protective agent for a rammed earth wall surface, and relates to the technical field of rammed earth buildings. The rammed earth wall surface waterproof protective agent takes caseinate and water as main components, and the protective agent is a water-based protective agent and is mainly used for rammed earth products, particularly the surface of rammed earth walls. The part of the casein is dispersed in gaps on the surface of the rammed earth wall after being coated, and the casein acid salt dispersed on the surface can enrich water molecules on the surface to form a layer of protective film due to the hydrophilic groups, the protective film can protect the surface of the wall and isolate the wall from the external environment, the surface of the wall can be prevented from loosening or the surface of the wall can be prevented from falling off through collision, and meanwhile, the air permeability of the rammed earth material is not hindered.
Description
Technical Field
The invention relates to the technical field of rammed earth construction, in particular to a waterproof protective agent for a rammed earth wall surface.
Background
The raw soil building has the advantages of low cost, warm in winter and cool in summer, energy conservation, natural integration, environmental protection and ecological balance. The development is rapid in the world and China, but the development meets a plurality of problems to be solved, such as poor water resistance, easy ash and slag dropping. The defects are extremely serious defects of the modern rammed earth and are difficult, so that the problem to be solved is to alleviate the defects of poor water resistance, easy ash falling and slag falling of the rammed earth wall on the premise of not influencing the respiratory property of the rammed earth wall. The existing common rammed earth wall surface protective agent in the market is generally a chemical protective agent, and the chemical protective agent modifies the earth on the surface of the wall, is not environment-friendly, damages the earth, is easy to peel off, and affects the respiratory property, surface texture, color texture and the like of the rammed earth wall. Therefore, a protective agent capable of effectively protecting the surface of a rammed earth wall is needed in the market at present.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a rammed earth wall surface waterproof protective agent, which alleviates the technical problem of lack of a protective agent for rammed earth wall surfaces in the prior art.
The second purpose of the invention is to provide a preparation method of the rammed earth wall surface waterproof protective agent, which has simple process and easy operation. The process has no special limitation on equipment, and can be operated manually or mechanically, so that the cost is low, and the use is flexible.
The third object of the present invention is to provide a rammed earth wall of rammed earth construction coated with the above-mentioned rammed earth wall surface water-proofing protective agent.
In order to solve the technical problems, the invention adopts the following technical scheme:
a rammed earth wall surface waterproof protective agent is composed of the following components: caseinate, water and optionally auxiliaries;
the protective agent is an aqueous protective agent; the protective agent is used for the surface of the rammed earth product.
Further, the using amount of the caseinate is 0.5% -5% of the mass of water; preferably 0.5% -3%; further preferably 1% to 2%.
Preferably, the sodium caseinate is edible sodium caseinate.
Further, the auxiliary agent comprises a preservative;
furthermore, the preservative is mainly prepared from wine and rice flour, and the amount of the rice flour in the preservative is 5-20% of the mass of the wine;
further, the liquor is preferably 15-60% (v/v) white liquor;
further, the preservative is prepared by the following method: mixing wine and rice flour, steaming, drying, and making into powder.
Further, the auxiliary agent includes at least one of a defoaming agent, a film forming agent, a colorant, a thickener, and a filler.
Further, the protective agent coats at least one layer on the surface of the object; preferably, 2-5 layers are coated on the surface of the object; it is further preferred to coat the surface of the object with 3 to 4 layers.
The invention also provides a preparation method of the rammed earth wall surface waterproof protective agent, which comprises the steps of uniformly mixing the components according to the formula amount;
further, the blending is stirring and blending.
The invention also provides a rammed earth wall of the rammed earth building coated with the rammed earth wall surface waterproof protective agent.
Compared with the prior art, the invention has the following beneficial effects:
the waterproof protective agent for the surface of the rammed earth wall provided by the invention takes caseinate and water as main components, and the protective agent is a water-based protective agent and is mainly used for rammed earth products, especially the surface of the rammed earth wall. The caseinate can be swelled after being dispersed in water, is partially dispersed in gaps on the surface of the rammed earth wall after being coated, and can enrich water molecules on the surface to form a layer of protective film due to the hydrophilic groups, so that the protective film can protect the surface of the wall to isolate the wall from the external environment, can prevent the surface of the wall from loosening or prevent the surface material from falling off through collision, and simultaneously does not hinder the air permeability of the rammed earth material.
The preparation method of the protective agent provided by the invention is simple and easy to operate. The process has no special limitation on equipment, and can be operated manually or mechanically, so that the cost is low, and the use is flexible.
The rammed earth wall of the rammed earth building coated with the protective agent is not easy to drop ash and slag, and has the effects of water resistance and air permeability maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 shows a rammed earth wall coated with a water-proofing protective agent for the surface of a rammed earth wall provided in example 3 of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments and the accompanying drawings, and it is obvious that the described embodiments are some, not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a rammed earth wall surface waterproof protective agent, which comprises the following components: casein and/or caseinate, water and optionally auxiliaries; the protective agent is an aqueous protective agent; the protective agent is used for the surface of the rammed earth product.
The protective agent formed by dispersing casein and/or caseinate in water can effectively prevent slag and ash on the surface of the rammed earth wall, simultaneously increases the surface strength, can prevent surface damage or partial material falling caused by impact to a certain degree, does not influence the air permeability of the soil material, and also has a certain waterproof effect.
Casein, also known as casein, lactocasein, and milk casein, is a phosphorus-containing binding protein, which is the major protein in mammalian, including bovine, ovine, and human milk. The caseinate is obtained by treating the casein curd with an alkaline substance, such as sodium hydroxide.
Casein is a mixture of some phosphorus-containing proteins, mainly composed of αs1Casein, αs1Casein, β Casein and kappa Casein composition αs1Casein has 1 hydrophilic head and 2 hydrophobic tails, β -casein has 1 hydrophilic head and 1 hydrophobic tail, thus casein has an amphiphilic propertyAnd (4) sex.
The aqueous protective agent is a protective agent using water as a solvent or a dispersion medium. The casein and the caseinate have good thickening property, emulsifying property, water retention property and gelling property. The swelling phenomenon may occur after the casein and/or caseinate is dispersed in water. The aqueous protective agent containing casein is coated on the surface of an object to form a layer of barrier film on the surface of the object, so that the object is prevented from directly contacting with the external environment, the surface of the object is well protected, and the casein and caseinate can also be used as food additives, so that the casein and caseinate composite material is an environment-friendly and nontoxic material.
The protective agent containing casein and/or caseinate is coated on the surface of the rammed earth wall, so that a protective film can be formed on the surface of the wall, and the casein and/or caseinate has hydrophilic and hydrophobic groups because the earth material is loose. Therefore, the casein and/or the caseinate can be partially dispersed in the gaps on the surface of the soil material after being coated, and the casein and/or the caseinate dispersed on the surface can enrich water molecules on the surface to form a layer of protective film due to the hydrophilic groups, the protective film can protect the surface of an article to isolate the article from the external environment, can prevent the surface of the article from loosening or prevent the material on the surface from falling off through collision, and does not hinder the air permeability of the soil material.
It should be noted that, during the preparation of the protective agent, casein and caseinate can be added simultaneously, which is superior to casein and caseinate in properties close to each other, and the invention does not limit the proportion of the two when they are added simultaneously.
It will be understood that the articles of the present invention which are primarily made of earthen materials may be, typically but not by way of limitation, buildings or articles whose surfaces are primarily made of earthen materials. The soil material can be a composite material containing soil, raw soil or modified raw soil.
In some alternative embodiments of the invention, the caseinate comprises potassium caseinate, calcium caseinate or sodium caseinate. In some preferred embodiments of the invention, the caseinate is sodium caseinate.
Sodium caseinate, also known as sodium prion, sodium caseinate, is generally prepared by the following two methods. One method comprises preheating skimmed milk with rennin or acid precipitation, removing whey, washing, dewatering, pulping, treating with sodium hydroxide, and spray drying; another method is to treat the casein curd with an alkaline substance, such as sodium hydroxide, to obtain caseinate. The sodium caseinate is milk white powder, odorless, tasteless, soluble in water, and insoluble in ethanol. Sodium caseinate has high emulsibility, water-holding capacity and gelling property, so that the protective agent prepared by dispersing sodium caseinate in water has better performance.
In some preferred embodiments of the present invention, the building wall is mainly made of a soil material; in some preferred embodiments of the invention, the building and the artwork are made primarily of raw earth and/or modified raw earth. The raw soil material generally refers to an original state soil material which is not roasted and is simply processed, and the modified raw soil is a material which is added with an auxiliary agent in the raw soil and adjusts or changes the performance of the raw soil, for example, the raw soil is added with an adhesive to enhance the viscosity of the raw soil material; or the filler is added into the raw soil to achieve the purpose of enhancing the strength of the raw soil. The protective agent is applied to the raw soil building, the traditional raw soil ramming process is not changed, and the protective agent is only used on the outer surface, so that a good protective effect can be achieved.
In some preferred embodiments of the invention, the casein and/or caseinate is used in an amount of 0.5% to 5% by mass of water; the amount of casein and/or caseinate is typically, but not limited to, 0.5%, 1%, 1.5%, 2%, 3%, 4% or 5%, preferably 0.1% to 2% of the mass of water. The performance of the protective agent can be further adjusted and optimized by optimizing the amount of casein and/or caseinate dispersed in the water.
In some alternative embodiments of the invention, the protective agent comprises the following components: sodium caseinate, water and optionally auxiliaries; in a preferred embodiment of the present invention, the sodium caseinate is sodium caseinate for food. The edible sodium caseinate is environment-friendly and pollution-free, and has no peculiar smell after being coated.
In some alternative embodiments of the invention, the adjuvant comprises a preservative. In some alternative embodiments of the invention, the preservative may typically, but not by way of limitation, be any one or more of cason, dow vili-75, 1, 2-benzisothiazol-3-one, sodium dehydroacetate, sodium dichloroisocyanurate, sodium diacetate, ergosterol, ethyl vanillin, and complex nipagin ester.
In some preferred embodiments of the present invention, the preservative is a preservative mainly made of wine and rice flour, preferably ground powder of white rice. The preservative is made of a non-contaminating edible material.
Optionally, the amount of rice flour in the preservative is 5% to 20% by mass of the wine, typically but not limited to 5%, 7%, 9%, 10%, 12%, 15%, 18% or 20%, preferably 8% to 12% by mass of the wine. The preservative effect of the preservative can be further optimized by adjusting the dosage of the rice flour and the wine.
Optionally, the wine is white spirit, preferably 20-60 degrees (v/v) white spirit.
Optionally, glutinous rice wine with the mass fraction of 10% -20% of white spirit can also be added into the wine.
Alternatively, the preservative is prepared according to the following method: the wine and the rice flour are uniformly mixed and then steamed, then dried, preferably naturally dried, and then crushed into powder for use, preferably crushed into powder of 150 meshes and 200 meshes, so that the powder can be uniformly dispersed in water.
In some alternative embodiments of the present invention, the adjuvant comprises at least one of a defoamer, a film former, a colorant, a thickener, and a filler.
Optionally, the anti-foaming agent typically, but not by way of limitation, comprises metallic soap of stearic acid and/or polyurea; optionally, the amount of the defoaming agent is 1-5% of the mass of the protective agent. As the foaming property of the casein and the caseinate is better, the addition of the antifoaming agent can prevent the protective agent from foaming greatly during stirring, so that a large amount of vacuoles are avoided during coating of the protective agent, and the coating is more uniform.
Optionally, the film forming agent typically but not limitingly comprises any one or more of propylene glycol butyl ether, propylene glycol methyl ether acetate, ethylene glycol phenyl ether, glycerin, propylene glycol phenyl ether, diethylene glycol and alcohol ester twelve, preferably glycerin, wherein the glycerin is colorless and odorless and is commonly used in skin care products and has no harm to human bodies; preferably, the dosage of the film forming agent is 0.5-2% of the mass of the protective agent. The film forming agent is added to help the protective agent form a film after being brushed on the surface.
Optionally, the colorant comprises natural pigment or synthetic pigment, and the natural pigment can be from mineral, animal and plant; pigments of mineral origin typically include, but are not limited to, cinnabar, laterite, realgar, malachite green, and ground limestone, wollastonite, barite powder, talc, mica powder, or kaolin; animal derived pigments typically, but not by way of limitation, include cochineal or natural fish scale powder; the plant-derived pigment typically, but not by way of limitation, includes gamboge, alizarin red or indigo. The synthetic pigments include inorganic pigments and organic pigments; the inorganic pigments typically, but not by way of limitation, include titanium white, lithopone, lead chrome yellow, or iron blue; typical, but non-limiting examples of the organic pigment include a scarlet powder, an amber yellow, phthalocyanine blue or quinacridone. In some preferred embodiments of the present invention, the natural pigment is selected to be environmentally friendly, the natural pigment is more environmentally friendly, the amount of the pigment can be adjusted according to the specific color, and the present invention is not limited thereto.
Optionally, said thickening agent typically, but not limited to, comprises starch, gelatin, sodium alginate, guar gum, chitosan, gum arabic, xanthan gum, soy protein gum, natural rubber, lanolin or agar; optionally, the thickener is used in an amount of 1% to 10% by mass of the protectant, typically but not limited to 1%, 3%, 5%, 8%, or 10%.
Optionally, the filler typically, but not by way of limitation, includes one or more of talc, precipitated barium sulfate, calcium silicate powder, and sodium stearate; optionally, the filler is used in an amount of 1% to 20% by mass of the protectant, typically but not limited to 1%, 3%, 5%, 8%, 10%, 13%, 15% or 20%.
It should be noted that the optional auxiliary agent in the present invention means any auxiliary agent that can optimize or adjust the performance of the protective agent, it is to be understood that the present invention is not limited to the kind and amount of the auxiliary agent, and it is to be understood that the present invention may not use the auxiliary agent.
In some alternative embodiments of the invention, the protective agent coats the rammed earth wall surface with at least one layer; preferably, 2-5 layers are coated on the surface of the object; it is further preferred to coat the surface of the object with 3 to 4 layers. In some preferred embodiments of the invention, each coat is applied after it has dried before the next coat is applied. The protective effect of the protective layer on the surface can be optimized by adjusting the coating layer number and the coating method of the protective agent.
The invention also provides a preparation method of the protective agent, which comprises the steps of uniformly mixing the components according to the formula amount, preferably uniformly stirring, and further preferably stirring for 10-30min after mixing the components by using a stirring rod so as to achieve the purposes of uniformly dispersing the sodium caseinate in water and fully swelling.
The preparation method of the rammed earth wall surface waterproof protective agent provided by the invention is simple in process and easy to operate. The process has no special limitation on equipment, and can be operated manually or mechanically, so that the cost is low, and the use is flexible.
The invention also provides a rammed earth wall of the rammed earth building coated with the rammed earth wall surface waterproof protective agent. The rammed earth wall of the rammed earth building coated with the protective agent has the advantages that ash and slag are not easy to fall off from the surface, a certain waterproof effect is achieved, and meanwhile the air permeability is kept.
The advantageous effects of the present invention will be further described with reference to preferred embodiments.
Example 1
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises casein and water, wherein the using amount of the casein is 1% of the mass of the water; the protective agent is prepared according to the following method: adding casein into water, and stirring for 15 min. The prepared protective agent is coated on the surface of the rammed earth wall, 4 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands.
Example 2
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises calcium caseinate and water, wherein the using amount of the calcium caseinate is 1% of the mass of the water; the protective agent is prepared according to the following method: adding calcium caseinate into water, and stirring for 15 minutes. The prepared protective agent is coated on the surface of the rammed earth wall, 3 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands.
Example 3
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises sodium caseinate and water, wherein the amount of the sodium caseinate is 1% of the mass of the water; the protective agent is prepared according to the following method: adding sodium caseinate into water, and stirring for 5 minutes by using an egg beater. The prepared protective agent is coated on the surface of the rammed earth wall, 4 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands. As shown in fig. 1, fig. 1 is an exhibit at an earth exhibition held by beijing university of architecture in 9 months in 2017, and the surface of the exhibit is coated with the protective agent provided in the embodiment.
Example 4
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises casein, sodium caseinate (the mass ratio of the casein to the sodium caseinate is 1:1) and water, wherein the total amount of the casein and the sodium caseinate is 1% of the mass of the water; the protective agent is prepared according to the following method: adding casein and sodium caseinate into water, and stirring for 5 minutes by using an egg beater. The prepared protective agent is coated on the surface of the rammed earth wall, 4 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands.
Example 5
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises sodium caseinate and water, wherein the using amount of the sodium caseinate is 0.5% of the mass of the water; the protective agent is prepared according to the following method: adding sodium caseinate into water, and stirring for 15 minutes. The prepared protective agent is coated on the surface of the rammed earth wall, 2 layers are coated, and each layer is dried and then the next layer is coated during coating. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands.
Example 6
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises sodium caseinate and water, wherein the using amount of the sodium caseinate is 5% of the mass of the water; the protective agent is prepared according to the following method: adding sodium caseinate into water, stirring with an egg beater for 20 minutes. The prepared protective agent is coated on the surface of the rammed earth wall, 2 layers are coated, and each layer is dried and then the next layer is coated during coating. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands.
Example 7
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises sodium caseinate and water, wherein the using amount of the sodium caseinate is 3% of the mass of the water; the protective agent is prepared according to the following method: adding sodium caseinate into water, and stirring for 20 minutes. The prepared protective agent is coated on the surface of the rammed earth wall, 4 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands.
Example 8
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises sodium caseinate and water, wherein the using amount of the sodium caseinate is 2% of the mass of the water; the preparation method comprises the following steps: adding sodium caseinate into water, and stirring for 15 minutes. The prepared protective agent is coated on the surface of the rammed earth wall for 5 layers, and each layer is dried and then coated with the next layer. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands.
Example 9
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises sodium caseinate, water and an antiseptic, wherein the using amount of the sodium caseinate is 1% of the mass of the water, and the using amount of the antiseptic is 1% of the mass of the water;
the preservative was prepared as follows: uniformly mixing 38% (v/v) white spirit and rice flour accounting for 15% of the mass of the white spirit, steaming, drying and grinding into powder for later use;
the protective agent is prepared according to the following method: the components are added into water and stirred for 20 minutes.
The prepared protective agent is coated on the surface of the rammed earth wall, 3 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands.
Example 10
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises sodium caseinate, water and a stearic acid metal soap defoaming agent, wherein the amount of the sodium caseinate is 1.5% of the mass of water, and the amount of the defoaming agent is 2% of the mass of water;
the protective agent is prepared according to the following method: the components are added into water and stirred for 20 minutes.
The prepared protective agent is coated on the surface of the rammed earth wall, 3 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands.
Example 11
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises sodium caseinate, water and glycerol, wherein the amount of the sodium caseinate is 1.5% of the mass of the water, and the amount of the glycerol is 2% of the mass of the water;
the protective agent is prepared according to the following method: the components are added into water and stirred for 20 minutes.
The prepared protective agent is coated on the surface of the rammed earth wall, 4 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands.
Example 12
The embodiment provides a rammed earth wall surface waterproof protective agent, which comprises sodium caseinate, water, glycerol and guar gum, wherein the amount of the sodium caseinate is 1.5% of the mass of the water, the amount of the glycerol is 2% of the mass of the water, and the amount of the guar gum is 2% of the mass of the water;
the protective agent is prepared according to the following method: the components are added into water and stirred for 30 minutes.
The prepared protective agent is coated on the surface of the rammed earth wall, 4 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After being coated, a protective layer can be formed on the surface of the rammed earth wall, and slag and ash can not fall off after the surface of the rammed earth wall is touched by hands.
Comparative example 1
The comparative example provides a protective agent, comprising wheat protein and water, wherein the amount of the wheat protein is 1% of the mass of the water; the protective agent is prepared according to the following method: adding the wheat protein into water, and stirring for 15 minutes. The prepared protective agent is coated on the surface of the rammed earth wall, 4 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After the paint is coated, the phenomenon of slag and ash falling still occurs when the surface of the wall body is touched by hands.
Comparative example 2
The comparative example provides a protectant comprising corn starch and water, wherein the amount of corn starch is 5% of the mass of water; the protective agent is prepared according to the following method: adding starch into water, and stirring for 15 minutes. The prepared protective agent is coated on the surface of the rammed earth wall, 4 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After the paint is coated, the phenomenon of slag and ash falling still occurs when the surface of the wall body is touched by hands.
Comparative example 3
The comparative example provides a protective agent, which comprises soybean protein glue and water, wherein the usage amount of the soybean protein glue is 2% of the mass of the water; the protective agent is prepared according to the following method: adding the soybean protein glue into water, and stirring for 15 minutes. The prepared protective agent is coated on the surface of the rammed earth wall, 4 layers are coated in total, and each layer is dried and then the next layer is coated during coating. After the paint is coated, the phenomenon of slag and ash falling still occurs when the surface of the wall body is touched by hands.
Examples of effects
Making blocks 1 × 103cm3The protective agents and the urethane varnishes provided in examples 1 to 12 and comparative examples 1 to 3 were applied to the upper surfaces of the test pieces, respectively, and each test group contained 5 test pieces, and the protective agents used in the test groups were applied to the test pieces in 1 to 5 layers, respectively. After drying, 2mL of water was poured onto the upper surface of the specimen, and the time for which the water penetrated into the specimen was observed. The results are shown in the following table.
As can be seen from the above table, the casein and/or caseinate dispersed in water and coated on the surface of the rammed earth test piece can effectively prevent water from permeating, and the waterproof effect is enhanced along with the increase of the number of the coating layers. It can be seen from the comparison of the examples with the comparative examples that the water-repellent effect of casein and/or caseinate cannot be achieved with other ingredients, such as wheat protein, starch or other thickeners.
As can be seen from examples 9 to 12, the addition of the auxiliary agent does not affect the waterproof performance of the protective agent, and both casein and sodium caseinate are easy to foam, so that the addition of the antifoaming agent can prevent the occurrence of cavities which cannot be covered on the surface of a rammed earth test piece due to uneven surface when the surface is coated due to a large amount of cavities generated during stirring, and the effect of coating a single layer is better than that of the protective agent provided by other examples. The film forming agent is added in the embodiment 10 and the embodiment 11 respectively, so that the film forming of the protective agent on the surface of the rammed earth test piece can be promoted, but the influence of the film forming agent on the water resistance of the protective agent is reduced when multiple layers are coated.
The effect example still uses polyurethane varnish, and because the rammed earth surface is not a smooth surface, the varnish is not suitable for being used as a surface protective agent for soil material products, and the surface protective agent is not easy to form a film on an uneven surface, so that the water leakage is easily caused by the occurrence of cavities, and the good waterproof effect can be achieved only by coating multiple layers.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (15)
1. The rammed earth wall surface waterproof protective agent is characterized by comprising the following components: caseinate, water and optionally auxiliaries;
the protective agent is an aqueous protective agent;
the amount of the caseinate is 0.5-5% of the mass of water;
the caseinate is sodium caseinate.
2. The rammed earth wall surface waterproof protective agent according to claim 1, wherein the amount of the caseinate is 0.5-3% by mass of water.
3. The rammed earth wall surface waterproof protective agent according to claim 2, characterized in that the amount of the caseinate is 1% -2% of the mass of water.
4. The rammed earth wall surface waterproof protective agent according to claim 1, wherein the sodium caseinate is edible sodium caseinate.
5. The rammed earth wall surface water repellent protective agent according to claim 1, wherein the auxiliary agent comprises a preservative.
6. The rammed earth wall surface waterproof protective agent according to claim 5, wherein the preservative is mainly prepared from wine and rice flour, and the amount of the rice flour in the preservative is 5-20% of the mass of the wine.
7. The rammed earth wall surface waterproof protective agent according to claim 6, wherein the wine is 15-60 degrees (v/v) white wine.
8. The rammed earth wall surface waterproof protective agent according to claim 6, wherein the preservative is prepared by the following method: mixing wine and rice flour, steaming, drying, and making into powder.
9. The rammed earth wall surface water repellent protective agent according to claim 1, wherein the auxiliary agent comprises at least one of a defoaming agent, a film-forming agent, a coloring agent and a thickening agent.
10. The rammed earth wall surface waterproof protective agent according to any one of claims 1 to 9, wherein the protective agent coats at least one layer on the surface of an object.
11. The rammed earth wall surface waterproof protective agent according to claim 10, wherein the protective agent coats 2-5 layers on the surface of an object.
12. The rammed earth wall surface waterproof protective agent according to claim 11, wherein the protective agent coats the surface of an object with 3 to 4 layers.
13. A method for preparing the rammed earth wall surface waterproof protective agent according to any one of claims 1 to 12, wherein the preparation method comprises uniformly mixing the components according to the formula amount.
14. The method of claim 13, wherein the blending is stirred blending.
15. A rammed earth wall of rammed earth construction coated with the water-proofing protective agent for rammed earth wall surface according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810476229.0A CN108587460B (en) | 2018-05-17 | 2018-05-17 | Rammed earth wall surface waterproof protective agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810476229.0A CN108587460B (en) | 2018-05-17 | 2018-05-17 | Rammed earth wall surface waterproof protective agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108587460A CN108587460A (en) | 2018-09-28 |
| CN108587460B true CN108587460B (en) | 2020-06-26 |
Family
ID=63631714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810476229.0A Active CN108587460B (en) | 2018-05-17 | 2018-05-17 | Rammed earth wall surface waterproof protective agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108587460B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0960922A1 (en) * | 1998-05-26 | 1999-12-01 | Aventis Research & Technologies GmbH & Co KG | Method for preparing a protein coating and articles thereof |
| CN103320016A (en) * | 2013-06-26 | 2013-09-25 | 长沙市金煌建筑装饰有限公司 | Interior wall coating with moisture adjustment and air purification functions and preparation method thereof |
| CN104844090A (en) * | 2015-05-05 | 2015-08-19 | 中国建筑材料科学研究总院 | Raw soil plastering binding material suitable for raw soil building blocks and preparation method of binding material |
| CN104844091A (en) * | 2015-05-05 | 2015-08-19 | 中国建筑材料科学研究总院 | Raw soil building binding material suitable for raw soil building blocks and preparation method of binding material |
-
2018
- 2018-05-17 CN CN201810476229.0A patent/CN108587460B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0960922A1 (en) * | 1998-05-26 | 1999-12-01 | Aventis Research & Technologies GmbH & Co KG | Method for preparing a protein coating and articles thereof |
| CN103320016A (en) * | 2013-06-26 | 2013-09-25 | 长沙市金煌建筑装饰有限公司 | Interior wall coating with moisture adjustment and air purification functions and preparation method thereof |
| CN104844090A (en) * | 2015-05-05 | 2015-08-19 | 中国建筑材料科学研究总院 | Raw soil plastering binding material suitable for raw soil building blocks and preparation method of binding material |
| CN104844091A (en) * | 2015-05-05 | 2015-08-19 | 中国建筑材料科学研究总院 | Raw soil building binding material suitable for raw soil building blocks and preparation method of binding material |
Non-Patent Citations (1)
| Title |
|---|
| 葡萄园中的夯土住宅;无;《网页》;20160407;第8页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108587460A (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106634327B (en) | A kind of antimicrobial form leather finishing agent and preparation method thereof | |
| CN108047834A (en) | A kind of easily orientation, high performance fluorine silicon composite water soluble aluminium paint and preparation method thereof | |
| CN106753224A (en) | Environment protection type wallpaper adhesive and preparation method thereof | |
| CN105297474A (en) | Insect-repellent synthetic leather and production method thereof | |
| CN107446404A (en) | A kind of external thermal insulation wall surface water proof flexible material | |
| CN108587460B (en) | Rammed earth wall surface waterproof protective agent | |
| CN104404780A (en) | Antibacterial mildew-resistant synthetic leather and production method thereof | |
| CN106830829B (en) | Environment-friendly type inner wall dry powder emulsion paint and preparation method thereof | |
| CN107163651A (en) | A kind of durable nanometer assistant agent oil colour of anti-mildew and preparation method | |
| CN105419192A (en) | Nontoxic elastic plasticine and preparation method thereof | |
| CN104046183B (en) | Water-water multi-color lacquer | |
| CN109626937A (en) | A kind of preparation method of water proof building plasterboard | |
| CN109401395A (en) | Drawing environmentally friendly acrylic paints and preparation method thereof with Jasmine fragrance | |
| CN109970425A (en) | A kind of artistic sculpture lightweight mud and preparation method thereof | |
| CN111019220B (en) | Low molecular weight polyolefin emulsion applied to seed coating agent film-forming agent and preparation method thereof | |
| CN105670404A (en) | Aqueous stone-like coating | |
| CN106221444A (en) | A kind of special finish paint of wicker plaiting article | |
| CN110041889A (en) | Environmentally friendly crust type dust suppressant and preparation method thereof and application method | |
| CN105731982A (en) | Non-toxic anti-crack putty and method for preparing same | |
| CN105754399A (en) | Mildew-proof putty powder and preparation method thereof | |
| CN103058584B (en) | Epoxy resin coating for exterior wall of building | |
| CN108840604A (en) | A kind of artificial color sand and preparation method thereof | |
| CN107286750A (en) | A kind of aqueous varnish of decal paper for ceramic ware and preparation method thereof | |
| CN106619191A (en) | Waterborne fingernail paint base material and preparing method thereof | |
| CN112876908A (en) | Preparation process of biological environment-friendly pigment for indoor design |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180928 Assignee: Shaanxi Qianfeng Basic Engineering Co.,Ltd. Assignor: ONEARTH (BEIJING) ARCHITECTURAL DESIGN CONSULTING Co.,Ltd. Contract record no.: X2022420000028 Denomination of invention: A waterproof protective agent for rammed wall surface Granted publication date: 20200626 License type: Common License Record date: 20220406 |