CN111848042A - Wallboard bonding mortar and preparation method thereof - Google Patents
Wallboard bonding mortar and preparation method thereof Download PDFInfo
- Publication number
- CN111848042A CN111848042A CN202010718730.0A CN202010718730A CN111848042A CN 111848042 A CN111848042 A CN 111848042A CN 202010718730 A CN202010718730 A CN 202010718730A CN 111848042 A CN111848042 A CN 111848042A
- Authority
- CN
- China
- Prior art keywords
- parts
- mortar
- bonding mortar
- wallboard
- bonding
- 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.)
- Pending
Links
Classifications
-
- 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
- C04B28/04—Portland cements
-
- 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
- C04B28/14—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 calcium sulfate cements
-
- 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
- C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
Abstract
The invention discloses wallboard bonding mortar and a preparation method thereof, relating to the technical field of building materials; a wallboard bonding mortar is mainly prepared from the following mortar raw materials, by weight, 400 parts of cement 350-containing sand, 650 parts of drying sand 600-containing sand, 1-3 parts of polypropylene fibers and 5-25 parts of vitrified micro bubbles; the mortar raw material also comprises external charging materials, wherein the external charging materials comprise the following raw materials in parts by weight: 10-25 parts of redispersible latex powder, 1-3 parts of wood fiber and 1.5-2.5 parts of cellulose ether. The wallboard bonding mortar has the advantages of good sag resistance and good crack resistance. The preparation method of the wallboard bonding mortar comprises the following steps: powder mixing, bonding powder preparation, bonding powder modification and the like. The preparation method of the wallboard bonding mortar has the advantage of improving the sag resistance and the cracking resistance of the wallboard bonding mortar.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to wallboard bonding mortar and a preparation method thereof.
Background
The adhesive mortar is powder mortar prepared by mechanically and uniformly mixing raw materials such as cement, quartz sand, polymer cementing material, additive and the like, and the adhesive mortar has the advantages of high adhesive strength and the like, and is widely applied to the fields of building industry, highway engineering and the like. With the progress of the times, people put higher requirements on the flexibility of the bonding mortar, and people are more and more researched on how to improve the flexibility of the bonding mortar.
CN105272024A discloses a bonding mortar, which comprises the following components in parts by weight: 450 parts of cement, 400 parts of sand, 400 parts of filler, 75-150 parts of hydroxypropyl methyl cellulose, 15-20 parts of redispersible latex powder and 4-5 parts of early strength agent; wherein the sand material is quartz sand with the granularity of 60 meshes to 80 meshes, and the filler is coarse whiting powder with the granularity of 80 meshes to 120 meshes. According to the technical scheme, the hydroxypropyl methyl cellulose and the redispersible latex powder are added, so that the attraction among molecules is increased, and the flexibility of the bonding mortar is improved.
However, the main raw materials of the technical scheme are quartz sand and heavy calcium carbonate powder with high density, and when the mortar is used for bonding the wallboard, the mortar is easy to droop due to the fact that the mortar needs to be coated on a vertical wall, so that mortar waste is caused, the construction cost is increased, and the constructability of the mortar is reduced.
Disclosure of Invention
In view of the deficiencies of the prior art, it is a first object of the present invention to provide a wallboard bonding mortar having the advantages of good sag resistance and good crack resistance.
A second object of the present invention is to provide a method for preparing a wallboard bonding mortar which has the advantage of improving the sag and crack resistance of the wallboard bonding mortar.
In order to achieve the first object, the invention provides the following technical scheme: a wallboard bonding mortar is mainly prepared from the following mortar raw materials, by weight, 400 parts of cement 350-containing sand, 650 parts of drying sand 600-containing sand, 1-3 parts of polypropylene fibers and 5-25 parts of vitrified micro bubbles; the mortar raw material also comprises external charging materials, wherein the external charging materials comprise the following raw materials in parts by weight: 10-25 parts of redispersible latex powder, 1-3 parts of wood fiber and 1.5-2.5 parts of cellulose ether; the moisture content of the dried sand is not more than 5%; the dried sand contains 30% of particles with the particle size of 40-70 meshes and 70% of particles with the particle size of 70-120 meshes.
By adopting the technical scheme, the cellulose ether is added into the bonding mortar, which is beneficial to improving the water retention property of the bonding mortar, promoting the cement to be fully hydrated and improving the bonding strength of the bonding mortar; the small-particle drying sand of 70 meshes to 120 meshes is used, and a certain amount of large-particle drying sand of 40 meshes to 70 meshes is doped, so that the air permeability of the bonding mortar is improved, the hollowing is reduced, and the crack resistance of the bonding mortar is improved; the redispersible latex powder is added into the bonding mortar, which is beneficial to improving the flexibility and the viscosity of the bonding mortar and improving the fracture resistance; the addition of wood fiber and polypropylene fiber is helpful for improving the viscosity and plasticity of the mortar, reducing the shrinkage of the bonding mortar, reducing micro cracks generated by the shrinkage of the bonding mortar and improving the crack resistance of the product; the glass beads are added, so that the porosity of the bonding mortar is improved, the glass beads have a certain water absorption function, the combined action of the glass beads, the redispersible latex powder, the wood fibers and the polypropylene fibers can improve the flowability of the bonding mortar when the bonding mortar is coated on a wall in the use process, the drooping of the bonding mortar is reduced, the anti-drooping performance of the bonding mortar is improved, the construction performance is improved, and the material waste is reduced.
Preferably, the mortar is mainly prepared from the following mortar raw materials, by weight, 400 parts of cement 350-sand, 650 parts of drying sand 600-sand, 2 parts of polypropylene fiber and 10-20 parts of vitrified micro-beads, wherein the external material comprises the following raw materials: 15-20 parts of redispersible latex powder, 2 parts of wood fiber and 2 parts of cellulose ether.
By adopting the technical scheme, the better mortar raw material proportion is used, the crack resistance and sag resistance of the bonding mortar are improved, the product constructability is improved, and the material waste is reduced.
Preferably, the polypropylene fiber is composed of 1 part by weight of polypropylene fiber particles having a particle size of 3mm and 1 part by weight of polypropylene fiber particles having a particle size of 6 mm.
By adopting the technical scheme, the polypropylene fiber particles with different particle sizes are compounded, which is beneficial to improving the breaking strength and the impermeability of the bonding mortar.
Preferably, the external charge further comprises 15 to 25 parts by weight of gypsum.
By adopting the technical scheme, a certain amount of gypsum is added into the bonding mortar, the main component of the gypsum is calcium sulfate hydrate, and the gypsum generates corresponding expansion energy when the bonding mortar is hardened, so that the shrinkage stress generated by hardening of the bonding mortar can be counteracted to a certain extent, the shrinkage resistance of the product is improved, the microcracks are reduced, and the bonding strength is improved.
Preferably, the external charge further comprises 0.3 to 0.7 parts by weight of starch ether.
By adopting the technical scheme, the starch ether with certain hydrophilicity is added into the bonding mortar, so that the compatibility of the bonding mortar after being added with water is improved, the sedimentation of the bonding mortar is reduced, the probability that the bonding mortar slips from a wall body when being coated on the wall body is reduced, the anti-sagging performance of the bonding mortar is improved, and the product constructability is improved.
Preferably, the external feed further comprises 0.8 to 1.2 parts by weight of a thixotropic lubricant.
By adopting the technical scheme, a small amount of thixotropic lubricant is added into the bonding mortar, so that the bonding mortar has certain thixotropy, the bonding mortar has certain fluidity when being smeared or stirred, and constructors can easily smear the bonding mortar on construction carriers such as walls, and after smearing is finished, the bonding mortar has higher viscosity, and the bonding mortar is not easy to slip from the construction carriers such as walls, so that the material waste is reduced.
Preferably, the external charge further comprises 1.2 to 1.8 parts by weight of a cement-based penetrant.
By adopting the technical scheme, the cement-based penetrating agent contains the hydrophilic group and the lipophilic group, and can drive the redispersible latex powder into microcracks of construction carriers such as a wall body and the like, so that the adhesive force of the bonding mortar is improved, the bonding strength is improved, and the service life is prolonged.
Preferably, the external material also comprises 0.2 weight part of regulator; the regulator is calcium formate coagulant in winter; the regulator is sodium gluconate retarder in summer.
By adopting the technical scheme, when the bonding mortar is used in construction, water is generally added to prepare muddy sand water slurry, and then the muddy sand water slurry is coated on construction carriers such as a wall body and the like; during construction in winter, the environmental temperature is low, water is slowly volatilized, the hardening and solidification of the bonding mortar are slow, the addition of the calcium formate coagulant is beneficial to accelerating the hardening and solidification speed of the bonding mortar, the probability of the mortar slipping off from a wall body or a wallboard is reduced, and the material waste is reduced; during construction in summer, the environmental temperature is high, water volatilizes quickly, the hardening and solidification of the bonding mortar are too fast, and the addition of the sodium gluconate retarder is beneficial to reducing the hardening and solidification speed of the bonding mortar, reducing microcracks and improving the crack resistance of the bonding mortar.
In order to achieve the second object, the invention provides the following technical scheme: a preparation method of wallboard bonding mortar comprises the following steps:
s1 powder mixing: weighing cement according to a set proportion, adding drying sand, stirring at a rotating speed of 800 plus 1800 rpm for 150 plus 200 seconds to prepare mixed powder;
s2 preparation of bonding powder: adding an external material into the mixed powder, and continuously stirring for 40-80s to obtain bonding powder;
s3 modification of bonding powder: and adding the polypropylene fiber and the vitrified micro bubbles into the bonding powder, and continuously stirring for 40-80s to prepare the wallboard bonding mortar.
By adopting the technical scheme, the cement and the drying sand are stirred and mixed uniformly at a high speed, so that the cement is more uniformly dispersed in the bonding mortar, the bonding strength is improved, the probability of the mortar slipping off from a wall body or a wallboard is reduced, and the anti-sagging performance of the bonding mortar is improved; the vitrified microsphere and the polypropylene fiber are added after other raw materials are fully mixed, so that the probability of breakage of the vitrified microsphere is reduced, and the probability of agglomeration of the polypropylene fiber due to static electricity is reduced; the preparation of the bonding mortar by stirring is completed in a short time, which is beneficial to reducing frictional heat, reducing external feeding and polypropylene fiber agglomeration, and better improving the anti-sagging performance and anti-cracking performance of the bonding mortar.
In summary, the invention includes at least one of the following beneficial technical effects:
1. according to the application, the cellulose ether is added into the bonding mortar, so that the water retention of the bonding mortar is improved, the cement is fully hydrated, and the crack resistance of the bonding mortar is improved; the use of the drying sand with proper particle size is beneficial to improving the air permeability of the bonding mortar, reducing hollowing and improving the anti-cracking performance of the bonding mortar; the redispersible rubber powder is added into the bonding mortar, which is helpful for adjusting the viscosity and flexibility of the bonding mortar, so that the bonding mortar is better attached to construction carriers such as walls, the slippage of the bonding mortar is reduced, the wood fiber and the polypropylene fiber are added, which is helpful for adjusting the viscosity and plasticity, the vitrified micro bubbles are added, so that the porosity of the bonding mortar is improved, the water absorption is improved, the fluidity of the bonding mortar after being coated on the construction carriers such as walls is reduced, and the vitrified micro bubbles, the redispersible rubber powder, the wood fiber and the polypropylene fiber act together, so that the anti-sagging performance of the bonding mortar is improved, and the material waste is reduced;
2. according to the application, gypsum, starch ether, thixotropic lubricant, cement-based penetrating agent and regulator are added, so that the anti-sagging performance and the anti-cracking performance of the bonding mortar are improved, and the material waste is reduced; the method helps to improve the breaking strength and the impermeability of the bonding mortar and improve the crack resistance of the bonding mortar by controlling the particle size of the polypropylene fiber particles;
3. the method comprises the steps of fully mixing the drying sand and the cement to promote the cement to be uniformly dispersed in the bonding mortar; and the vitrified microsphere and the polypropylene fiber are added after other raw materials are fully mixed, so that the probability of breakage of the vitrified microsphere is reduced, the probability of agglomeration of the polypropylene fiber due to static electricity is reduced, and the crack resistance and the sag resistance of the bonding mortar are better improved.
Detailed Description
Examples
The raw materials related to the invention are all commercially available, and the types and sources of part of the raw materials are shown in table 1.
TABLE 1 Specification, type and origin of the raw materials
| Name of raw materials | Specification and model | Place of manufacture/manufacturer |
| Cement | PO42.5R | Huarun Cement Consortium Co Ltd |
| Redispersible latex powder | 328N | Wake Germany Co |
| 3mm polypropylene fiber | 3mm, cracking resistance | Beijing Aipi technology Ltd |
| 6mm polypropylene fiber | 6mm, cracking resistance | Beijing Aipi technology Ltd |
| Wood fiber | B500 | Beijing Aipi technology Ltd |
| Vitrified micro bubbles | 20 meshes to 50 meshes | Xinyang Hongsheng insulation materials Co Ltd |
| Cellulose ethers | HEC HB-100000 | North Tianpu Cellulose Co.,Ltd. |
| Starch ethers | S301 | Everebeck, Holland, Inc |
| Thixotropic lubricant | Magnesium aluminum silicates | HUNAN PENGTAI HIGH-NEW MATERIALS Co.,Ltd. |
| Cement-based penetrant | AZY-F1 | Sichuan mean building auxiliary material plant |
| Sodium gluconate retarder | 25 kg/bag | Shandong Ruichen chemical Co Ltd |
| Calcium formate accelerator | 25 kg/bag | Jinan Bai evolutionary engineering and technology Co Ltd |
| Gypsum plaster | 25 kg/bag | Hebei Shimao building materials Co Ltd |
Preparation example 1: preparation of dried sand
The stoving sand that this application used is stoving quartz sand, produces from Guangdong bo luo. Taking dried quartz sand with the water content of not more than 5%, screening the dried quartz sand by using screens of 40 meshes and 70 meshes, and selecting dried quartz sand particles with the particle size of 40 meshes-70 meshes; screening the dried quartz sand by using screens of 70 meshes and 120 meshes, and selecting dried quartz sand particles with the particle size of 70 meshes-120 meshes; 0.6 ton of dried quartz sand particles with the particle size of 40 meshes to 70 meshes and 1.4 ton of dried quartz sand particles with the particle size of 70 meshes to 120 meshes are uniformly mixed to prepare the dried sand.
Example 1: a preparation method of wallboard bonding mortar comprises the following steps:
s1 powder mixing: 35kg of cement was weighed, 65kg of the dried sand obtained in preparation example 1 was added, and the mixture was stirred for 180 seconds at 1200 rpm with a variable-frequency high-speed stirrer to obtain a mixed powder.
S2 preparation of bonding powder: 1.8kg of redispersible latex powder is taken, 200g of wood fiber, 200g of cellulose ether, 2kg of gypsum, 50g of starch ether, 100g of thixotropic lubricant and 150g of cement-based penetrating agent are added, and the mixture is uniformly mixed to prepare the external additive. And (4) adding the additional material into the mixed powder prepared in the step S1, and continuously stirring for 60S to prepare the bonding powder.
S3 modification of bonding powder: and adding 100g of polypropylene fiber with the particle size of 3mm, 100g of polypropylene fiber with the particle size of 6mm and 1.5kg of vitrified micro bubbles into the bonding powder, and continuously stirring for 60 seconds to prepare the wallboard bonding mortar.
Example 2
Example 2 differs from example 1 in that example 2 added 20g of a calcium formate-based coagulant during the preparation of the external charge at step S2, all remaining the same as example 1; the wallboard bonding mortar prepared in example 2 is suitable for winter construction.
Example 3
Example 3 differs from example 1 in that example 3 added 20g of sodium gluconate retarder during the preparation of the add-on in step S2, all other things remaining the same as example 1; the wallboard bonding mortar prepared in example 2 is suitable for summer construction.
Example 4
Example 4 differs from example 1 in that example 4 does not have the addition of starch ether and otherwise remains the same as example 1.
Example 5
Example 5 differs from example 1 in that example 5 does not have the addition of a thixotropic lubricant and otherwise remains the same as example 1.
Example 6
Example 6 differs from example 1 in that example 6 does not have the cement-based penetrant added, and otherwise remains the same as example 1.
Examples 7 to 14
Examples 7 to 14 are different from example 1 in the amount of each raw material added in examples 7 to 14. The particle sizes of the dried sand and the polypropylene fiber in the examples 7 to 14 are consistent with that in the example 1, and the process parameters of the steps in the examples 7 to 14 are consistent with that in the example 1. The amounts of the respective starting materials added in examples 7 to 14 are shown in Table 2.
TABLE 2 addition of the starting materials of examples 7 to 14
Examples 15 to 18
Examples 15-18 differ from example 1 in the process parameters of the steps of examples 15-18. The particle sizes of the dried sand and the polypropylene fiber in examples 15 to 18 were kept the same as those in example 1, and the amounts of the respective raw materials in examples 15 to 18 were kept the same as those in example 1. The process parameters for the various steps of examples 15-18 are shown in Table 3.
TABLE 3 parameters in the procedure of examples 15-18
Comparative example
Comparative example 1
Comparative example 1 differs from example 1 in that comparative example 1 does not incorporate vitrified micro bubbles, polypropylene fibers and wood fibers, and otherwise remains the same as example 1.
Comparative example 2
A preparation method of wallboard bonding mortar comprises the following steps:
s1 powder mixing: 65kg of the baked sand obtained in preparation example 1 was weighed, 100g of 3mm polypropylene short fiber particles, 100g of 6mm polypropylene short fiber particles and 1.5kg of vitrified micro bubbles were added, and the mixture was stirred for 180 seconds at 1200 rpm with a variable frequency high speed stirrer to obtain a mixed powder.
S2 preparation of bonding powder: 1.8kg of redispersible latex powder is taken, 200g of wood fiber, 200g of cellulose ether, 2kg of gypsum, 50g of starch ether, 100g of thixotropic lubricant and 150g of cement-based penetrating agent are added, and the mixture is uniformly mixed to prepare the external additive. And (4) adding the additional material into the mixed powder prepared in the step S1, and continuously stirring for 60S to prepare the bonding powder.
S3 modification of bonding powder: and adding 35kg of cement into the bonding powder, and continuously stirring for 60s to obtain the wallboard bonding mortar.
Performance detection
1. Cracking resistance: the wallboard bonding mortar product and water are prepared into a mixture according to the weight ratio of 5:1 at the ambient temperature of 20 ℃, the crack resistance test is carried out according to the method disclosed by JC/T951-2005 'test method for crack resistance of cement mortar', and the experimental result is shown in Table 4. The wallboard bonding mortar products prepared in examples 1 and 3 were tested for crack resistance at ambient temperature of 35 ℃ with reference to the above method, and the results are shown in Table 4
2. Sag resistance: preparing a mixture from a wallboard bonding mortar product and water according to a weight ratio of 5:1 at the ambient temperature of 20 ℃, then preparing a plurality of sample pieces with the size of 100mm, and curing for 28 days to prepare standard sample pieces; meanwhile, the mixture is made into a plurality of sample pieces with the size of 100mm by 50mm, and the sample pieces are maintained for 28 days to prepare test intermediate sample pieces; flatly placing a test intermediate sample piece on a horizontal stainless steel plate, spraying a release agent on the stainless steel plate, enabling a 100mm by 100mm surface to face upwards, uniformly spraying a 50mm thick mixture on the 100mm by 100mm surface of the test intermediate sample piece for 5min, standing for 2min to form a test layer on the surface of the test intermediate sample piece, immediately vertically placing the test intermediate sample piece, enabling a 50mm by 100mm plane of the test intermediate sample piece to be in contact with the stainless steel plate, and standing for 28 days to obtain a test piece; and (3) respectively carrying out compressive strength test on the standard sample piece and the test piece, respectively testing the compressive strength of the standard sample piece and the test piece in three different directions according to a method of GB/T50081-2002 standard of mechanical property test method of common concrete, respectively calculating the compressive strength difference values of the standard sample piece and the test piece in the three directions, and dividing the average value of the compressive strength difference values by the average value of the compressive strength of the standard sample piece to obtain the sag strength loss rate, wherein the test results are shown in Table 4. The wallboard bonding mortar products prepared in examples 1 and 2 were tested for sag resistance at ambient temperature of 5 c, in accordance with the method described above, and the results are shown in table 4
TABLE 4 comparison table of performance test results of different wallboard bonding mortar products
The larger the cracking resistance ratio is, the better the cracking resistance of the product is; the lower the sag strength loss rate, the better the sag resistance of the wallboard bonding mortar product.
In comparative example 1, no vitrified micro bubbles, polypropylene fibers and wood fibers are added, so that the prepared wallboard bonding mortar product has poor cracking resistance and sagging resistance, and is not beneficial to market popularization of the product. Comparative example 2 the feeding sequence is different, the polypropylene fiber and the vitrified micro bubbles are added firstly, and the prepared wallboard bonding mortar product has poor crack resistance and sag resistance, which is not beneficial to the market popularization of the product.
Comparing the experimental results of example 1 and comparative example 1, it can be seen that, in the process of preparing the wallboard bonding mortar, the vitrified micro bubbles, the polypropylene fibers and the wood fibers are added simultaneously, and after the prepared wallboard bonding mortar product is subjected to sagging treatment, the compressive strength loss is small, the sagging resistance of the product is good, the cracking resistance is good, the product workability is good, the material waste during construction is reduced, and the construction cost is favorably reduced. Compared with the proper temperature condition of 20 ℃, the wallboard bonding mortar product prepared in the example 1 has slightly reduced crack resistance at the high temperature of 35 ℃ and reduced sagging resistance at the low temperature of 5 ℃.
Comparing the experimental results of example 1 and example 2, the calcium formate-based accelerator was added in a small amount in example 2, and the crack resistance and sag resistance of the prepared wallboard bonding mortar product at 20 ℃ were not much different from those of example 1, but the product prepared in example 2 had better sag resistance at a low temperature of 5 ℃ and was suitable for winter construction. In the embodiment 3, a small amount of sodium gluconate retarder is added, the crack resistance and sag resistance of the prepared wallboard bonding mortar product at 20 ℃ are not much different from those of the wallboard bonding mortar product in the embodiment 1, but the product prepared in the embodiment 3 has better crack resistance at a high temperature of 35 ℃, and is suitable for summer construction. Comparing the experimental results of example 1 and example 4, the wallboard bonding mortar product prepared in example 4 without adding starch ether has reduced crack resistance and sag resistance, which is not good for product market promotion. Comparing the experimental results of example 1 and example 5, the wallboard bonding mortar product prepared in example 5 without cement-based penetrant has reduced crack resistance and sag resistance, which is not good for product market promotion. Comparing the experimental results of example 1 and example 6, the thixotropic lubricant is not added in example 6, the prepared wallboard bonding mortar product has little difference in crack resistance and slightly reduced sag resistance, and meanwhile, the product prepared by the technical scheme has poor thixotropy, is not convenient to coat the product on construction carriers such as walls during construction, has poor constructability, and is not beneficial to product market popularization.
Compared with the embodiment 1, the addition amounts of the raw materials in the embodiments 7 to 14 are different, and the prepared product has excellent crack resistance and sag resistance, is good in product construction performance, and is beneficial to reducing material waste and saving construction cost.
Compared with the embodiment 1, the process parameters of the steps of the embodiments 15 to 18 are different, and the prepared product has excellent crack resistance and sag resistance, is good in product construction performance, and is beneficial to reducing material waste and saving construction cost.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The wallboard bonding mortar is characterized by being mainly prepared from the following mortar raw materials, by weight, 400 parts of cement 350-containing materials, 650 parts of drying sand 600-containing materials, 1-3 parts of polypropylene fibers and 5-25 parts of vitrified micro bubbles; the mortar raw material also comprises external charging materials, wherein the external charging materials comprise the following raw materials in parts by weight: 10-25 parts of redispersible latex powder, 1-3 parts of wood fiber and 1.5-2.5 parts of cellulose ether; the moisture content of the dried sand is not more than 5%; the dried sand contains 30% of particles with the particle size of 40-70 meshes and 70% of particles with the particle size of 70-120 meshes.
2. The wallboard bonding mortar of claim 1, which is prepared from the following mortar raw materials, by weight, 400 parts of cement 350-: 15-20 parts of redispersible latex powder, 2 parts of wood fiber and 2 parts of cellulose ether.
3. The wallboard bonding mortar of claim 2, wherein: the polypropylene fiber consists of 1 part by weight of polypropylene fiber particles with the particle size of 3mm and 1 part by weight of polypropylene fiber particles with the particle size of 6 mm.
4. The wallboard bonding mortar of claim 2, wherein: the external material also comprises 15-25 parts by weight of gypsum.
5. The wallboard bonding mortar of claim 2, wherein: the external charge also comprises 0.3 to 0.7 parts by weight of starch ether.
6. The wallboard bonding mortar of claim 2, wherein: the external feed also comprises 0.8-1.2 parts by weight of a thixotropic lubricant.
7. The wallboard bonding mortar of claim 2, wherein: the external material also comprises 1.2 to 1.8 weight parts of cement-based penetrant.
8. The wallboard bonding mortar of claim 2, wherein: the external material also comprises 0.2 weight part of regulator; the regulator is calcium formate coagulant in winter; the regulator is sodium gluconate retarder in summer.
9. A method of preparing a wallboard bonding mortar according to any one of claims 1 to 8 comprising the steps of:
s1 powder mixing: weighing cement according to a set proportion, adding drying sand, stirring at a rotating speed of 800 plus 1800 rpm for 150 plus 200 seconds to prepare mixed powder;
s2 preparation of bonding powder: adding an external material into the mixed powder, and continuously stirring for 40-80s to obtain bonding powder;
s3 modification of bonding powder: and adding the polypropylene fiber and the vitrified micro bubbles into the bonding powder, and continuously stirring for 40-80s to prepare the wallboard bonding mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010718730.0A CN111848042A (en) | 2020-07-23 | 2020-07-23 | Wallboard bonding mortar and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010718730.0A CN111848042A (en) | 2020-07-23 | 2020-07-23 | Wallboard bonding mortar and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111848042A true CN111848042A (en) | 2020-10-30 |
Family
ID=72949792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010718730.0A Pending CN111848042A (en) | 2020-07-23 | 2020-07-23 | Wallboard bonding mortar and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111848042A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111606631A (en) * | 2020-06-20 | 2020-09-01 | 深圳市亿东阳建材有限公司 | Thin-layer plastering mortar and preparation method thereof |
| CN112552001A (en) * | 2020-12-07 | 2021-03-26 | 绵竹市铸诚混凝土有限公司 | Phosphogypsum mortar for load-bearing structure and preparation method thereof |
| CN112851265A (en) * | 2021-03-03 | 2021-05-28 | 广西建工轨道装配建筑材料有限公司 | Anti-crack mortar for splicing light partition wall battens and preparation method thereof |
| CN113309269A (en) * | 2021-06-30 | 2021-08-27 | 亮达建筑材料科技(徐州)有限公司 | Heat-preservation disassembly-free formwork, construction process thereof and building outer wall with heat-preservation disassembly-free formwork |
| CN114394802A (en) * | 2022-01-20 | 2022-04-26 | 江苏基策建筑工程有限公司 | Repair mortar for ALC (autoclaved lightweight concrete) board and preparation method thereof |
| WO2023287274A1 (en) * | 2021-07-16 | 2023-01-19 | Vazquez Carrera Daniel | Dry-mix compositions comprising cellulose esters, calcium sulfate dihydrate, pre-gelatinised starch ester and redispersible acrylic polymer, with use as an accelerated adhesive for joining and adhering panels of gypsum and cement |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575191A (en) * | 2008-05-08 | 2009-11-11 | 四川蜂巢科技有限公司 | Expanded and vitrified microsphere insulating material for construction wall and production process |
| CN102359237A (en) * | 2011-08-30 | 2012-02-22 | 信阳金固建筑节能保温工程有限公司 | Inorganic vitrified micro bubble external heat-insulating system for outer wall |
| CN102924014A (en) * | 2012-11-16 | 2013-02-13 | 深圳广田高科新材料有限公司 | Binding mortar with light weight and high droop resistance and preparation and use methods |
| CN105347757A (en) * | 2015-11-20 | 2016-02-24 | 浙江湖州德旺建材科技有限公司 | Formula and preparation method of inorganic thermal insulation mortar |
| CN108546041A (en) * | 2018-05-10 | 2018-09-18 | 合肥昂诺新材料有限公司 | A kind of waterproof and heat-insulating mortar and preparation method thereof |
| CN110054461A (en) * | 2019-05-21 | 2019-07-26 | 启东市新联建筑材料有限公司 | A kind of environmental protection cracking resistance high durable external thermal insulation decorative mortar and preparation method thereof |
| CN110407545A (en) * | 2019-08-23 | 2019-11-05 | 四川蓝筹建材有限公司 | A kind of wet-mixing plastering mortar and preparation method thereof |
-
2020
- 2020-07-23 CN CN202010718730.0A patent/CN111848042A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575191A (en) * | 2008-05-08 | 2009-11-11 | 四川蜂巢科技有限公司 | Expanded and vitrified microsphere insulating material for construction wall and production process |
| CN102359237A (en) * | 2011-08-30 | 2012-02-22 | 信阳金固建筑节能保温工程有限公司 | Inorganic vitrified micro bubble external heat-insulating system for outer wall |
| CN102924014A (en) * | 2012-11-16 | 2013-02-13 | 深圳广田高科新材料有限公司 | Binding mortar with light weight and high droop resistance and preparation and use methods |
| CN105347757A (en) * | 2015-11-20 | 2016-02-24 | 浙江湖州德旺建材科技有限公司 | Formula and preparation method of inorganic thermal insulation mortar |
| CN108546041A (en) * | 2018-05-10 | 2018-09-18 | 合肥昂诺新材料有限公司 | A kind of waterproof and heat-insulating mortar and preparation method thereof |
| CN110054461A (en) * | 2019-05-21 | 2019-07-26 | 启东市新联建筑材料有限公司 | A kind of environmental protection cracking resistance high durable external thermal insulation decorative mortar and preparation method thereof |
| CN110407545A (en) * | 2019-08-23 | 2019-11-05 | 四川蓝筹建材有限公司 | A kind of wet-mixing plastering mortar and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 左明扬等: "《水泥生产工艺技术》", 31 December 2013, 武汉理工大学出版社 * |
| 青藏铁路施工新技术编委会编: "《青藏铁路施工新技术》", 31 October 2007, 甘肃科学技术出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111606631A (en) * | 2020-06-20 | 2020-09-01 | 深圳市亿东阳建材有限公司 | Thin-layer plastering mortar and preparation method thereof |
| CN112552001A (en) * | 2020-12-07 | 2021-03-26 | 绵竹市铸诚混凝土有限公司 | Phosphogypsum mortar for load-bearing structure and preparation method thereof |
| CN112851265A (en) * | 2021-03-03 | 2021-05-28 | 广西建工轨道装配建筑材料有限公司 | Anti-crack mortar for splicing light partition wall battens and preparation method thereof |
| CN113309269A (en) * | 2021-06-30 | 2021-08-27 | 亮达建筑材料科技(徐州)有限公司 | Heat-preservation disassembly-free formwork, construction process thereof and building outer wall with heat-preservation disassembly-free formwork |
| WO2023287274A1 (en) * | 2021-07-16 | 2023-01-19 | Vazquez Carrera Daniel | Dry-mix compositions comprising cellulose esters, calcium sulfate dihydrate, pre-gelatinised starch ester and redispersible acrylic polymer, with use as an accelerated adhesive for joining and adhering panels of gypsum and cement |
| CN114394802A (en) * | 2022-01-20 | 2022-04-26 | 江苏基策建筑工程有限公司 | Repair mortar for ALC (autoclaved lightweight concrete) board and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111848042A (en) | Wallboard bonding mortar and preparation method thereof | |
| CN103255888B (en) | Full-body dry hanging plate and manufacturing method thereof | |
| CN103113077B (en) | Desulfurization gypsum concrete | |
| CN109455973B (en) | Thixotropic agent suitable for 3D printing of sulphoaluminate cement-based material | |
| CN113968697B (en) | Dry powder interface treating agent for aerated concrete and preparation method thereof | |
| CN110483000B (en) | Interface agent for repairing masonry structure and preparation method and application thereof | |
| CN111072344B (en) | High-crack-resistance low-shrinkage premixed concrete | |
| CN114394802A (en) | Repair mortar for ALC (autoclaved lightweight concrete) board and preparation method thereof | |
| CN109354455B (en) | Ceramic tile crack sealer and preparation method thereof | |
| CN109133781B (en) | Preparation method of environment-friendly dry powder crack sealer | |
| CN108483978B (en) | Cementing agent for regenerated pervious concrete and preparation method and application thereof | |
| CN111517740B (en) | Cement-based composite material for 3D printing and preparation method thereof | |
| CN107352909B (en) | Special finishing mortar for foam glass heat insulation system and preparation method and use method thereof | |
| CN111517715B (en) | 3D printing thermal insulation mortar and preparation method and application thereof | |
| CN105060817A (en) | Adhesive mortar for ALC (autoclaved lightweight concrete) wallboard | |
| CN111777395A (en) | Formula, process and application for producing plastering mortar by using citric acid gypsum | |
| CN109437614B (en) | Normal-temperature-cured alkali-activated cementing material with low alkali dissolution amount and preparation method thereof | |
| CN111533506A (en) | Anti-crack waterproof thermal insulation polymer mortar | |
| Silva et al. | Development of a stabilized natural fiber-reinforced earth composite for construction applications using 3D printing | |
| CN110723951B (en) | Modified raw soil material for 3D printing and preparation method thereof | |
| CN113511857A (en) | Grouting type diatom ooze for repairing structural cracks of wall | |
| CN111302751A (en) | Wall material composite material | |
| CN110128091A (en) | A kind of novel energy-saving environment-friendly mortar and its production method | |
| CN114436589B (en) | Mortar composition and preparation method thereof | |
| CN113603444B (en) | Solid waste base dry-mixed mortar and preparation method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201030 |