CN111646760A - Color facing mortar and preparation method thereof - Google Patents
Color facing mortar and preparation method thereof Download PDFInfo
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- CN111646760A CN111646760A CN202010603079.2A CN202010603079A CN111646760A CN 111646760 A CN111646760 A CN 111646760A CN 202010603079 A CN202010603079 A CN 202010603079A CN 111646760 A CN111646760 A CN 111646760A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/38—Polysaccharides or derivatives thereof
- C04B24/383—Cellulose or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a color facing mortar and a preparation method thereof, wherein the color facing mortar is prepared from the following raw materials in parts by weight: 550 parts of quartz sand 450-; the quartz sand is prepared by mixing quartz sand with the particle size of 40-80 meshes and quartz sand with the particle size of 80-120 meshes, and the additive is prepared from the following components in parts by weight: 2-4 parts of cellulose ether, 14-22 parts of redispersible latex powder, 2-4 parts of wood fiber, 2-4 parts of water repellent, 1-2 parts of melamine water reducing agent, 0.2-0.8 part of starch ether, 0.8-1.2 parts of dispersant and 8-12 parts of heavy calcium carbonate. The invention has the advantages that: the color facing mortar has the advantages of various colors, crack resistance, permeability resistance, weather resistance, durability, alkali resistance and the like.
Description
Technical Field
The invention belongs to the field of building materials, and particularly relates to color facing mortar and a preparation method thereof.
Background
The facing mortar is a granular or powdery material prepared by physically mixing dry and screened aggregate (such as quartz sand), inorganic cementing material (such as white cement), additive (such as polymer and inorganic pigment) according to a certain proportion, and the like, and is transported to a construction site in a bag or bulk form, and the material can be directly used after being mixed with water. The facing mortar has various colors, is generally used for the surface of a wall body to be used for decoration of inner and outer walls, and is suitable for the facing of the outer walls of high-grade buildings and villas and the finishing layer of the individualized wall surface and outer wall external heat insulation system of entertainment places and restaurant lamps.
Compared with the conventional facing material, the facing mortar has the advantages that:
1) compared with the veneer of organic materials such as paint and the like, the veneer mortar has better matching property and compatibility with an external thermal insulation system.
2) Compared with the ceramic tile veneer, the veneer mortar layer has small thickness and light weight, and when the veneer mortar layer is used as a high-rise building veneer layer, the brick falling phenomenon can not occur due to negative air pressure and other problems.
However, the existing color facing mortar has the problems of efflorescence, color difference, cracking and the like. Whether saltpetering or color-shifting, it is essentially the result of migration of the cement hydration product calcium hydroxide to the surface. The hydration products of cement (including portland cement, low-alkali aluminate cement and low-alkali sulphoaluminate cement) all have calcium hydroxide or soluble salt, the calcium hydroxide (or the soluble salt) migrates to the surface along with moisture, the migration speed is different under different environments (including temperature, humidity, wind speed and the like), the amount of the calcium hydroxide reaching the surface is different, and color difference can be caused; if the amount of calcium hydroxide locally migrated to the surface is large, it is called efflorescence.
The efflorescence and the color difference seriously affect the whole decoration effect of the facing mortar, so that the appearance quality of the facing mortar is reduced, the cracking not only affects the whole aesthetic property of the whole facing, but also affects the reinforcing effect of the wall surface where the facing is located, and therefore improvement is urgently needed.
In order to solve the above phenomena, patent CN 104016633B discloses an exterior wall color facing mortar and a preparation method thereof, wherein the facing mortar is composed of the following raw materials by weight percent: 20-30% of white cement, 50-60% of quartz sand, 0.1-0.5% of chopped fiber, 10-20% of heavy calcium carbonate, 0.2-1% of latex powder, 0.3-0.5% of cellulose ether, 1-5% of inorganic pigment, 0.2-0.4% of water repellent, 5-10% of fly ash, 0.1-0.15% of defoaming agent, 1-3% of metakaolin, 0.2-0.5% of thixotropic lubricant and 1-2% of water reducing agent; the colorful facing mortar for the outer wall has the advantages of crack resistance, weather resistance, good ultraviolet resistance, uniform and durable color, good saltpetering resistance and the like, can be well combined with various inorganic bottom layer materials, has good coating compactness, and can be widely applied to the building fields of outer wall decoration and the like; however, the invention still has certain disadvantages: 1. in the formula mixing, only inorganic pigment can be added, so that the color of the facing mortar has certain limitation; 2. due to the characteristics of the structure of the facing mortar, the facing mortar often leaks during use, particularly for underground and underwater structural engineering, so that the durability is low, which seriously affects and restricts the application of the facing mortar.
Disclosure of Invention
The invention aims to solve the technical problem of providing the color facing mortar and the preparation method thereof, and the color facing mortar has the advantages of various colors, crack resistance, permeability resistance, weather resistance, durability, alkali resistance and the like.
In order to solve the technical problems, the technical scheme of the invention is as follows: the color facing mortar has the innovation points that: the color facing mortar comprises the following raw materials in parts by weight: 550 parts of quartz sand 450-; wherein the content of the first and second substances,
the quartz sand is formed by mixing quartz sand with the particle size of 40-80 meshes and quartz sand with the particle size of 80-120 meshes, and the mass ratio of the quartz sand with the particle size of 40-80 meshes to the quartz sand with the particle size of 80-120 meshes is 7: 3;
the additive is prepared from the following components in parts by weight: 2-4 parts of cellulose ether, 14-22 parts of redispersible latex powder, 2-4 parts of wood fiber, 2-4 parts of water repellent, 1-2 parts of melamine water reducing agent, 0.2-0.8 part of starch ether, 0.8-1.2 parts of dispersant and 8-12 parts of heavy calcium carbonate; the cellulose ether is prepared by mixing methyl cellulose and hydroxypropyl methyl cellulose, and the mass ratio of the methyl cellulose to the hydroxypropyl methyl cellulose is 1.7-2.1: 1.
Further, the pigment is an inorganic pigment, an organic pigment or a mixture of the inorganic pigment and the organic pigment.
Further, the redispersible latex powder is ethylene-vinyl acetate copolymer latex powder.
Further, the water repellent is a polysiloxane powder water repellent.
Further, the dispersant is an SD polycarboxylic acid hyperdispersant.
The preparation method of the color facing mortar has the innovation points that: the preparation method comprises the following steps:
(1) preparing the raw material components according to the proportion of the additive, sending the prepared cellulose ether and starch ether into a stirrer A, stirring at a stirring speed of 60-70r/min, adding the rest raw materials in the additive into the stirrer A after the cellulose ether and the starch ether are uniformly stirred, and continuously stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed to obtain the additive;
(2) preparing raw material components according to the proportion of the color facing mortar, sending the prepared quartz sand, white cement, high-alumina cement and heavy calcium carbonate into a stirrer B, and stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed; then adding the double-flying powder and the hydrated lime powder into the stirrer B, continuously stirring at a stirring speed of 60-70r/min until all the raw materials are uniformly mixed, adding the pigment and the additive into the stirrer, and continuously stirring at a stirring speed of 70-80r/min until all the raw materials are uniformly mixed to obtain the color facing mortar.
The invention has the advantages that:
(1) the color facing mortar of the present invention has greatly reduced soluble calcium ion content in the binary cementing material system comprising high alumina cement and white cement compared with common Portland cement, so as to reduce Ca (OH) content on the surface of mortar2And CaCO3Crystals are formed, so that the purpose of inhibiting the phenomena of saltpetering is achieved; the quartz sand has the skeleton function in common mortar in the facing mortar, improves the mortar strength, reduces the mortar shrinkage and has specific decorative effect; heavy calcium carbonate and double-flying powder as inorganic filler and used for facing mortarThe filling effect is achieved, the cost can be reduced, the compactness and the strength of the product can be increased, the porosity inside the mortar is reduced due to the improvement of the mortar density, and the occurrence of saltpetering of the facing mortar is further inhibited; in addition, the additive in the formula is the additive of the special formula, so that various pigments can be added into the mortar formula, and the pigment with the color can be selected according to the color required, so that the color diversity of the facing mortar is increased, the process of brushing the coating on the surface of the mortar layer is omitted, the construction period is shortened, and the cost is reduced;
(2) the additive in the formula is prepared by a specific formula, and because the cellulose ether structure contains hydroxyl and ether bonds, oxygen atoms on the hydroxyl and ether bond groups are associated with water molecules to form hydrogen bonds, so that free water is changed into bound water and is wound, and the water retention effect is achieved, and the mortar has the capability of keeping and locking water; the cellulose ether in the formula of the mortar adopts a mixture of methylcellulose and hydroxypropyl methylcellulose, wherein the methylcellulose and the hydroxypropyl methylcellulose have higher water retention rate, but the higher the temperature is, the poorer the water retention property is, and if the temperature of the mortar exceeds 40 ℃, the water retention property of the methylcellulose is obviously deteriorated, so that the workability of the mortar is seriously influenced; the temperature can also affect the viscosity of the hydroxypropyl methyl cellulose, the temperature is increased, the viscosity is reduced, but the influence of the high viscosity and the high temperature is lower than that of the methyl cellulose, and meanwhile, the water retention rate with the same addition amount is higher than that of the methyl cellulose, so that the consumption of the methyl cellulose is higher than that of the hydroxypropyl methyl cellulose when the two are mixed, namely, through the test, when the mass ratio of the two is 1.7-2.1:1, the capability of the mortar for keeping and locking the water content is greatly improved through the synergistic effect of the two;
due to the modification effect of the redispersible latex powder in the mortar, the mortar becomes flexible, and the cracking of a facing mortar layer is effectively prevented;
due to the capillary action of the wood fiber structure, moisture in the system is rapidly transmitted to the surface and the interface of the slurry, so that the moisture in the slurry is uniformly distributed, the skinning phenomenon is obviously reduced, the bonding strength and the surface strength are obviously improved, and the tension is reduced in the drying process to obviously play a role in cracking resistance;
the water repellent changes the traditional outer wall waterproof method, and starts from the structure of building materials, the fundamental problem of outer wall leakage is solved, gaps of mortar and concrete are compact, the compressive strength and the tensile strength are improved, and meanwhile, a permanent waterproof film is formed on the surface of a building, so that the service life of the building can be effectively prolonged; liquid water is prevented from permeating into the cured cement-based material through the surface or capillary action, so that the water absorption of the cement-based material can be greatly reduced;
the melamine water reducing agent mainly has the function of improving the rheological property of the facing mortar, and the addition of the melamine water reducing agent can improve the strength of the mortar, increase the rheological property of the mortar and save the using amount of cement;
the starch ether has the characteristics of low viscosity, high hydrophilicity, good fluidity, weak retrogradation, high stability and the like, can improve the internal structure of the material, has good compatibility with additives, and ensures that the product has the characteristics of anti-cracking property, anti-sagging property, and improved workability and construction performance; the starch ether and the methyl cellulose ether are jointly used in the dry building mixture, so that higher thickening property, stronger structural property, sag resistance and easy operability can be endowed;
the dispersant functions to reduce the time and energy required to complete the dispersion process using a wetting dispersant, stabilize the dispersed pigment dispersion in the formulation, modify the surface properties of the pigment particles, and adjust the mobility of the pigment particles;
therefore, the use amounts of the raw material components are strictly controlled and the compatibility between the raw material components is strictly controlled, so that the color facing mortar has the advantages of various colors, cracking resistance, permeability resistance, weather resistance, durability, alkali resistance and the like;
(3) according to the colored facing mortar, the redispersible latex powder in the additive is ethylene-vinyl acetate copolymer latex powder, and the powder can be redispersed after meeting water, so that the original performance of the emulsion is achieved;
(4) the color facing mortar of the invention is characterized in that the water repellent is a polysiloxane powder water repellent which has outstanding bonding strength, can improve the flexibility of the mortar and has longer open time, not only endows the mortar with excellent alkali resistance, but also can improve the adhesiveness/adhesiveness, breaking strength, waterproofness, plasticity, wear resistance and constructability of the mortar and has stronger flexibility in flexible anti-crack mortar;
(5) according to the color facing mortar, the dispersing agent is the SD polycarboxylic acid hyper-dispersant, the main chain of the SD polycarboxylic acid hyper-dispersant is attached to the surface of cement particles, and the branched chain surrounds the cement particles to play a role in steric hindrance. Because the molecular structure of the water-based cement material belongs to a comb type, the cement hydration product is not easy to completely surround the water-based cement material, so that the water-based cement material has large mobility loss, better dispersing capacity, small mobility loss and excellent water reducing effect, and can be widely applied to different types of cement-based materials;
(6) according to the preparation method of the color facing mortar, the raw material components have a specific sequential addition sequence in the preparation process, and the performance of the color facing mortar is affected by disorder of the addition sequence, so that the addition sequence needs to be strictly paid attention.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
Example 1
The preparation method of the color facing mortar of the embodiment comprises the following steps:
(1) weighing the following raw material components in parts by weight: 2 parts of cellulose ether (the cellulose ether is formed by mixing methyl cellulose and hydroxypropyl methyl cellulose, and the mass ratio of the methyl cellulose to the hydroxypropyl methyl cellulose is 1.7: 1), 14 parts of ethylene-vinyl acetate copolymer emulsion powder, 2 parts of wood fiber, 2 parts of polysiloxane powder water repellent, 1 part of melamine water reducing agent, 0.2 part of starch ether, 0.8 part of SD polycarboxylic acid hyper-dispersant and 8 parts of heavy calcium carbonate;
(2) sending the cellulose ether and the starch ether weighed in the step (1) into a stirrer A, stirring at a stirring speed of 60-70r/min, adding the other rest raw materials in the step (1) into the stirrer A after the cellulose ether and the starch ether are uniformly stirred, and continuously stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed to obtain an additive;
(3) weighing the following raw material components in parts by weight: 450 parts of quartz sand (which is formed by mixing quartz sand with the particle size of 40-80 meshes and quartz sand with the particle size of 80-120 meshes, and the mass ratio of the quartz sand with the particle size of 40-80 meshes to the quartz sand with the particle size of 80-120 meshes is 7: 3), 130 parts of white cement, 100 parts of high-alumina cement, 40 parts of double-fly ash, 140 parts of heavy calcium carbonate, 40 parts of slaked lime powder, 30 parts of an additive in the step (2) and 4 parts of pigment;
(4) sending the quartz sand, the white cement, the high-alumina cement and the heavy calcium carbonate prepared in the step (2) into a stirrer B, and stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed; then adding the double-flying powder and the hydrated lime powder into the stirrer B, continuously stirring at a stirring speed of 60-70r/min until all the raw materials are uniformly mixed, adding the pigment and the additive into the stirrer, and continuously stirring at a stirring speed of 70-80r/min until all the raw materials are uniformly mixed to obtain the color facing mortar.
Example 2
The preparation method of the color facing mortar of the embodiment comprises the following steps:
(1) weighing the following raw material components in parts by weight: 2 parts of cellulose ether (the cellulose ether is formed by mixing methyl cellulose and hydroxypropyl methyl cellulose, and the mass ratio of the methyl cellulose to the hydroxypropyl methyl cellulose is 2.1: 1), 14 parts of ethylene-vinyl acetate copolymer emulsion powder, 2 parts of wood fiber, 2 parts of polysiloxane powder water repellent, 1 part of melamine water reducing agent, 0.2 part of starch ether, 0.8 part of SD polycarboxylic acid hyper-dispersant and 8 parts of heavy calcium carbonate;
(2) sending the cellulose ether and the starch ether weighed in the step (1) into a stirrer A, stirring at a stirring speed of 60-70r/min, adding the other rest raw materials in the step (1) into the stirrer A after the cellulose ether and the starch ether are uniformly stirred, and continuously stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed to obtain an additive;
(3) weighing the following raw material components in parts by weight: 450 parts of quartz sand (which is formed by mixing quartz sand with the particle size of 40-80 meshes and quartz sand with the particle size of 80-120 meshes, and the mass ratio of the quartz sand with the particle size of 40-80 meshes to the quartz sand with the particle size of 80-120 meshes is 7: 3), 130 parts of white cement, 100 parts of high-alumina cement, 40 parts of double-fly ash, 140 parts of heavy calcium carbonate, 40 parts of slaked lime powder, 30 parts of an additive in the step (2) and 4 parts of pigment;
(4) sending the quartz sand, the white cement, the high-alumina cement and the heavy calcium carbonate prepared in the step (2) into a stirrer B, and stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed; then adding the double-flying powder and the hydrated lime powder into the stirrer B, continuously stirring at a stirring speed of 60-70r/min until all the raw materials are uniformly mixed, adding the pigment and the additive into the stirrer, and continuously stirring at a stirring speed of 70-80r/min until all the raw materials are uniformly mixed to obtain the color facing mortar.
Example 3
The preparation method of the color facing mortar of the embodiment comprises the following steps:
(1) weighing the following raw material components in parts by weight: 2 parts of cellulose ether (the cellulose ether is formed by mixing methyl cellulose and hydroxypropyl methyl cellulose, and the mass ratio of the methyl cellulose to the hydroxypropyl methyl cellulose is 1.9: 1), 14 parts of ethylene-vinyl acetate copolymer emulsion powder, 2 parts of wood fiber, 2 parts of polysiloxane powder water repellent, 1 part of melamine water reducing agent, 0.2 part of starch ether, 0.8 part of SD polycarboxylic acid hyper-dispersant and 8 parts of heavy calcium carbonate;
(2) sending the cellulose ether and the starch ether weighed in the step (1) into a stirrer A, stirring at a stirring speed of 60-70r/min, adding the other rest raw materials in the step (1) into the stirrer A after the cellulose ether and the starch ether are uniformly stirred, and continuously stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed to obtain an additive;
(3) weighing the following raw material components in parts by weight: 450 parts of quartz sand (which is formed by mixing quartz sand with the particle size of 40-80 meshes and quartz sand with the particle size of 80-120 meshes, and the mass ratio of the quartz sand with the particle size of 40-80 meshes to the quartz sand with the particle size of 80-120 meshes is 7: 3), 130 parts of white cement, 100 parts of high-alumina cement, 40 parts of double-fly ash, 140 parts of heavy calcium carbonate, 40 parts of slaked lime powder, 30 parts of an additive in the step (2) and 4 parts of pigment;
(4) sending the quartz sand, the white cement, the high-alumina cement and the heavy calcium carbonate prepared in the step (2) into a stirrer B, and stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed; then adding the double-flying powder and the hydrated lime powder into the stirrer B, continuously stirring at a stirring speed of 60-70r/min until all the raw materials are uniformly mixed, adding the pigment and the additive into the stirrer, and continuously stirring at a stirring speed of 70-80r/min until all the raw materials are uniformly mixed to obtain the color facing mortar.
The following table 1 is a comparative table of mass ratios of methylcellulose and hydroxypropylmethylcellulose among cellulose ethers in the admixtures of examples 1-3:
the color veneer mortar products prepared in the above examples 1 to 3 were tested according to the JC/T1024-2007 standard for wall veneer mortar, and the test results are shown in Table 2 below.
Table 2 examples 1-3 product performance test results
And (4) conclusion: as can be seen from the above table, the test results of the color facing mortar products prepared in examples 1-3 all meet the use requirements specified by the building industry standards, and further, the color facing mortar has the advantages of various colors, cracking resistance, permeability resistance, weather resistance, durability, alkali bleeding resistance and the like; in addition, comparing examples 1 to 3 with each other, it can be seen that each test performance of example 3 is superior to that of the other two examples, and thus example 3 is the best example.
Example 4
The preparation method of the color facing mortar of the embodiment comprises the following steps:
(1) weighing the following raw material components in parts by weight: 4 parts of cellulose ether (the cellulose ether is formed by mixing methyl cellulose and hydroxypropyl methyl cellulose, and the mass ratio of the methyl cellulose to the hydroxypropyl methyl cellulose is 1.9: 1), 22 parts of ethylene-vinyl acetate copolymer emulsion powder, 4 parts of wood fiber, 4 parts of polysiloxane powder water repellent, 2 parts of melamine water reducing agent, 0.8 part of starch ether, 1.2 parts of SD polycarboxylic acid hyper-dispersant and 12 parts of heavy calcium carbonate;
(2) sending the cellulose ether and the starch ether weighed in the step (1) into a stirrer A, stirring at a stirring speed of 60-70r/min, adding the other rest raw materials in the step (1) into the stirrer A after the cellulose ether and the starch ether are uniformly stirred, and continuously stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed to obtain an additive;
(3) weighing the following raw material components in parts by weight: 550 parts of quartz sand (which is formed by mixing quartz sand with the particle size of 40-80 meshes and quartz sand with the particle size of 80-120 meshes, and the mass ratio of the quartz sand with the particle size of 40-80 meshes to the quartz sand with the particle size of 80-120 meshes is 7: 3), 150 parts of white cement, 120 parts of high-alumina cement, 60 parts of fly ash, 160 parts of heavy calcium carbonate, 60 parts of slaked lime powder, 50 parts of an additive in the step (2) and 10 parts of pigment;
(4) sending the quartz sand, the white cement, the high-alumina cement and the heavy calcium carbonate prepared in the step (2) into a stirrer B, and stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed; then adding the double-flying powder and the hydrated lime powder into the stirrer B, continuously stirring at a stirring speed of 60-70r/min until all the raw materials are uniformly mixed, adding the pigment and the additive into the stirrer, and continuously stirring at a stirring speed of 70-80r/min until all the raw materials are uniformly mixed to obtain the color facing mortar.
Example 5
The preparation method of the color facing mortar of the embodiment comprises the following steps:
(1) weighing the following raw material components in parts by weight: 3 parts of cellulose ether (the cellulose ether is formed by mixing methyl cellulose and hydroxypropyl methyl cellulose, and the mass ratio of the methyl cellulose to the hydroxypropyl methyl cellulose is 1.9: 1), 18 parts of ethylene-vinyl acetate copolymer emulsion powder, 3 parts of wood fiber, 3 parts of polysiloxane powder water repellent, 1.5 parts of melamine water reducing agent, 0.5 part of starch ether, 1.0 part of SD polycarboxylic acid hyper-dispersant and 10 parts of heavy calcium carbonate;
(2) sending the cellulose ether and the starch ether weighed in the step (1) into a stirrer A, stirring at a stirring speed of 60-70r/min, adding the other rest raw materials in the step (1) into the stirrer A after the cellulose ether and the starch ether are uniformly stirred, and continuously stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed to obtain an additive;
(3) weighing the following raw material components in parts by weight: 500 parts of quartz sand (which is formed by mixing quartz sand with the particle size of 40-80 meshes and quartz sand with the particle size of 80-120 meshes, and the mass ratio of the quartz sand with the particle size of 40-80 meshes to the quartz sand with the particle size of 80-120 meshes is 7: 3), 140 parts of white cement, 110 parts of high-alumina cement, 50 parts of fly ash, 150 parts of heavy calcium carbonate, 50 parts of slaked lime powder, 40 parts of an additive in the step (2) and 7 parts of pigment;
(4) sending the quartz sand, the white cement, the high-alumina cement and the heavy calcium carbonate prepared in the step (2) into a stirrer B, and stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed; then adding the double-flying powder and the hydrated lime powder into the stirrer B, continuously stirring at a stirring speed of 60-70r/min until all the raw materials are uniformly mixed, adding the pigment and the additive into the stirrer, and continuously stirring at a stirring speed of 70-80r/min until all the raw materials are uniformly mixed to obtain the color facing mortar.
Table 3 below is a comparative table of the formulations of the various components of the color facing mortar of examples 3-5:
TABLE 3 examples 3-5 weight ratios of the components of the color finishing mortar
The color veneer mortar products prepared in the above examples 1 to 3 were tested according to the JC/T1024-2007 standard for wall veneer mortar, and the test results are shown in Table 2 below.
Table 2 examples 1-3 product performance test results
And (4) conclusion: as can be seen from the above table, the test results of the color facing mortar products prepared in examples 3-5 all meet the use requirements specified by the building industry standards, and further, the color facing mortar has the advantages of various colors, cracking resistance, permeability resistance, weather resistance, durability, alkali bleeding resistance and the like; in addition, when examples 3 to 5 are compared with each other, it can be seen that each test performance of example 5 is superior to that of the other two examples, and thus example 5 is the best example.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The color facing mortar is characterized in that: the color facing mortar comprises the following raw materials in parts by weight: 550 parts of quartz sand 450-; wherein the content of the first and second substances,
the quartz sand is formed by mixing quartz sand with the particle size of 40-80 meshes and quartz sand with the particle size of 80-120 meshes, and the mass ratio of the quartz sand with the particle size of 40-80 meshes to the quartz sand with the particle size of 80-120 meshes is 7: 3;
the additive is prepared from the following components in parts by weight: 2-4 parts of cellulose ether, 14-22 parts of redispersible latex powder, 2-4 parts of wood fiber, 2-4 parts of water repellent, 1-2 parts of melamine water reducing agent, 0.2-0.8 part of starch ether, 0.8-1.2 parts of dispersant and 8-12 parts of heavy calcium carbonate; the cellulose ether is prepared by mixing methyl cellulose and hydroxypropyl methyl cellulose, and the mass ratio of the methyl cellulose to the hydroxypropyl methyl cellulose is 1.7-2.1: 1.
2. The color finishing mortar of claim 1, wherein: the pigment is inorganic pigment, organic pigment or mixture of the inorganic pigment and the organic pigment.
3. The color finishing mortar of claim 1, wherein: the redispersible latex powder is ethylene-vinyl acetate copolymer latex powder.
4. The color finishing mortar of claim 1, wherein: the water repellent is polysiloxane powder water repellent.
5. The color finishing mortar of claim 1, wherein: the dispersant is SD polycarboxylic acid hyperdispersant.
6. The preparation method of the color facing mortar of claim 1, which is characterized by comprising the following steps: the preparation method comprises the following steps:
(1) preparing raw material components according to the external additive ratio in claim 1, feeding the prepared cellulose ether and starch ether into a stirrer A, stirring at a stirring speed of 60-70r/min, adding the rest raw materials in the additive into the stirrer A after the cellulose ether and starch ether are uniformly stirred, and continuously stirring at a stirring speed of 70-80r/min until the raw materials are uniformly mixed to obtain the additive;
(2) preparing raw material components according to the proportioning of the color facing mortar in the claim 1, sending the prepared quartz sand, white cement, high-alumina cement and heavy calcium carbonate into a stirrer B, and stirring at the stirring speed of 70-80r/min until the raw materials are uniformly mixed; then adding the double-flying powder and the hydrated lime powder into the stirrer B, continuously stirring at a stirring speed of 60-70r/min until all the raw materials are uniformly mixed, adding the pigment and the additive into the stirrer, and continuously stirring at a stirring speed of 70-80r/min until all the raw materials are uniformly mixed to obtain the color facing mortar.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112341081A (en) * | 2020-11-02 | 2021-02-09 | 安徽省创天昇世科技发展有限公司 | Colored facing cement capable of releasing negative ions |
| CN112374841A (en) * | 2020-09-16 | 2021-02-19 | 湖州上建华煜混凝土有限公司 | Refractory concrete and preparation method thereof |
| CN114380541A (en) * | 2021-12-21 | 2022-04-22 | 河北三棵树涂料有限公司 | Dry powder mortar based on color decoration and finishing material and preparation method thereof |
| CN114560665A (en) * | 2022-04-07 | 2022-05-31 | 武汉质高环保科技有限公司 | Phase-change thermal-insulation facing mortar for building interior wall and preparation method thereof |
| CN114605130A (en) * | 2022-04-07 | 2022-06-10 | 武汉质高环保科技有限公司 | Fireproof thermal insulation facing mortar and preparation method and application thereof |
| CN114920514A (en) * | 2022-04-24 | 2022-08-19 | 福建省三棵树新材料有限公司 | Waterproof ecological facing mortar coated once and preparation method thereof |
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| CN1105960A (en) * | 1994-01-29 | 1995-08-02 | 北京新型建筑材料总厂 | Compound cement-base building binder |
| CN108046719A (en) * | 2017-12-18 | 2018-05-18 | 南通清安健无水印染研究所（普通合伙） | A kind of preparation method of colored finish mortar |
| CN109160779A (en) * | 2018-08-24 | 2019-01-08 | 四川聚力建材科技有限公司 | A kind of colored mortar and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112374841A (en) * | 2020-09-16 | 2021-02-19 | 湖州上建华煜混凝土有限公司 | Refractory concrete and preparation method thereof |
| CN112341081A (en) * | 2020-11-02 | 2021-02-09 | 安徽省创天昇世科技发展有限公司 | Colored facing cement capable of releasing negative ions |
| CN114380541A (en) * | 2021-12-21 | 2022-04-22 | 河北三棵树涂料有限公司 | Dry powder mortar based on color decoration and finishing material and preparation method thereof |
| CN114560665A (en) * | 2022-04-07 | 2022-05-31 | 武汉质高环保科技有限公司 | Phase-change thermal-insulation facing mortar for building interior wall and preparation method thereof |
| CN114605130A (en) * | 2022-04-07 | 2022-06-10 | 武汉质高环保科技有限公司 | Fireproof thermal insulation facing mortar and preparation method and application thereof |
| CN114560665B (en) * | 2022-04-07 | 2023-08-11 | 武汉质高环保科技有限公司 | Phase-change thermal-insulation facing mortar for building inner wall and preparation method thereof |
| CN114920514A (en) * | 2022-04-24 | 2022-08-19 | 福建省三棵树新材料有限公司 | Waterproof ecological facing mortar coated once and preparation method thereof |
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