CN111875335A - Mortar special for building floor and floating building floor and production method thereof - Google Patents
Mortar special for building floor and floating building floor and production method thereof Download PDFInfo
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- CN111875335A CN111875335A CN202010792357.3A CN202010792357A CN111875335A CN 111875335 A CN111875335 A CN 111875335A CN 202010792357 A CN202010792357 A CN 202010792357A CN 111875335 A CN111875335 A CN 111875335A
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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
- C04B28/14—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
- C04B28/16—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 containing anhydrite, e.g. Keene's cement
-
- 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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides special mortar for a building ground and a floating building ground, which comprises the following components in parts by weight: 20-50 parts of anhydrous gypsum or semi-hydrated gypsum, 5-10 parts of CaSO4 crystal reinforcing material, 3-5 parts of silicon nano reinforcing agent, 50-70 parts of graded sand, 5-10 parts of Portland cement, 0.1-0.5 part of special water reducing powder, 0.1-0.5 part of water retaining agent and 0.1-0.5 part of gypsum retarder. The mortar special for the building floor and the floating floor solves the problem that the existing cement mortar is easy to crack by using the semi-hydrated gypsum or the anhydrous gypsum, can be used for the building floor and the floating floor, has the compressive strength acceptance meeting the specification after one year because of adding the CaSO4 crystal reinforcing material and the silicon nano reinforcing agent, and simultaneously solves the problem that the mortar special for the building floor and the floating floor is poor in water resistance, and is difficult to hydrolyze after soaking water.
Description
Technical Field
The invention relates to special mortar for building floors and floating building floors and a production method thereof.
Background
The problem of cracking of the building ground material products in the prior art, mainly cement-based materials, is a difficult problem which is not overcome all the time and seriously influences the engineering quality. Although gypsum materials are used for cracking resistance, the gypsum materials can only be used for wall surfaces, and are difficult to solve in the industry because the gypsum materials have low strength and poor water resistance, can be subjected to strength shrinkage and pulverization for a long time, and can be hydrolyzed almost immediately after being soaked in water. Therefore, a floor material which is not easy to crack, has high strength and relatively good water resistance is not available.
In view of the above, there is a need to improve the existing gypsum mortar to solve the above problems.
Disclosure of Invention
The invention aims to provide special mortar for building floors and floating floors, and aims to solve the problems of low strength, poor water resistance and easiness in cracking of the existing mortar.
In order to achieve the purpose, the invention provides special mortar for a building floor and a floating building floor, which comprises the following components in parts by weight: 20-50 parts of anhydrous gypsum or semi-hydrated gypsum, 5-10 parts of CaSO4 crystal reinforcing material, 3-5 parts of silicon nano reinforcing agent, 50-70 parts of graded sand, 5-10 parts of Portland cement, 0.1-0.5 part of special water reducing powder, 0.1-0.5 part of water retaining agent and 0.1-0.5 part of gypsum retarder.
As a further improvement of the invention, the graded sand is 30-200 mesh graded sand.
As a further improvement of the invention, the portland cement is 52.5R.
As a further improvement of the invention, the water retention agent is methyl cellulose.
As a further improvement of the invention, the CaSO4 crystal reinforcing material comprises the following components in parts by mass: the material comprises, by weight, 3 parts of a mixed material, 0.3 part of rare earth, 1 part of calcium silicate, 1 part of calcium ferrite and 1 part of calcium aluminate, wherein the mixed material is prepared by calcining silicon oxide, iron oxide, titanium oxide, beryllium oxide, spodumene, limestone, rare earth and unstable light metal at a high temperature.
As a further improvement of the invention, the silicon nano reinforcing agent consists of nano SiO2 powder and saturated water-soluble silicon dioxide.
The invention also provides a production method of the special mortar for the building floor and the floating building floor, which comprises the following steps:
s1: preparing and providing a CaSO4 crystal reinforcing material and a silicon nano reinforcing agent;
s2: adding 50-70 parts of graded sand;
s3: adding 20-50 parts of anhydrous gypsum or semi-hydrated gypsum;
s4: 5-10 parts of Portland cement, 0.1-0.5 part of water-retaining agent, 0.1-0.5 part of gypsum retarder, 0.1-0.5 part of special water-reducing powder, 5-10 parts of CaSO4 crystal reinforcing material and 3-5 parts of silicon nano reinforcing agent are added and uniformly stirred in a high-speed stirring device to prepare the special mortar for the ground of the building and the floating building.
As a further improvement of the invention, the CaSO4 crystal reinforcing material is prepared by the following method:
calcining silicon oxide, iron oxide, titanium oxide, beryllium oxide, spodumene, limestone, rare earth and unstable light metal at high temperature to prepare a mixed material;
after the mixed material is taken out of the kiln and is cooled extremely, 3 parts of the mixed material, 0.3 part of rare earth, 1 part of calcium silicate, 1 part of calcium ferrite and 1 part of calcium aluminate are taken, high-order electrovalence rare earth is added, and the mixed material is ground to the fineness of 400-mesh and 600-mesh in a high-temperature hot air environment and is naturally cooled to obtain the calcium aluminate.
As a further improvement of the invention, the preparation method of the silicon nano reinforcing agent comprises the following steps:
and spraying saturated water-soluble silicon dioxide into the nano SiO2 powder, and drying until the water content is not more than 2% to obtain the silicon nano reinforcing agent.
The invention has the beneficial effects that: the mortar special for the building floor and the floating floor solves the problem that the existing cement mortar is easy to crack by adding the semi-hydrated gypsum or the anhydrous gypsum, can be used for the building floor and the floating floor, has the compressive strength acceptance meeting the specification after one year because of adding the CaSO4 crystal reinforcing material and the silicon nano reinforcing agent, and simultaneously solves the problem that the mortar special for the building floor and the floating floor is poor in water resistance, and is difficult to hydrolyze after soaking water.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in detail below with reference to specific embodiments.
The special mortar for the building floor and the floating building floor comprises the following components in parts by weight: 20-50 parts of anhydrous gypsum or semi-hydrated gypsum, 5-10 parts of CaSO4 crystal reinforcing material, 3-5 parts of silicon nano reinforcing agent, 50-70 parts of graded sand, 5-10 parts of Portland cement, 0.1-0.5 part of special water reducing powder, 0.1-0.5 part of water retaining agent and 0.1-0.5 part of gypsum retarder. The gypsum is added into the mortar, so that the mortar can be used for resisting cracking, and the CaSO4 crystal reinforcing material and the silicon nano reinforcing agent are added, so that the water resistance and the strength can be improved.
Wherein the graded sand is 30-200 meshes of graded sand, the Portland cement is 52.5R, and the water-retaining agent is methyl cellulose.
The CaSO4 crystal reinforcing material comprises the following components in parts by mass: the material comprises, by weight, 3 parts of a mixed material, 0.3 part of rare earth, 1 part of calcium silicate, 1 part of calcium ferrite and 1 part of calcium aluminate, wherein the mixed material is prepared by calcining silicon oxide, iron oxide, titanium oxide, beryllium oxide, spodumene, limestone, rare earth and unstable light metal at a high temperature.
The silicon nano reinforcing agent consists of nano SiO2 powder and saturated water-soluble silicon dioxide.
The invention also provides a production method of the special mortar for the building floor and the floating building floor, which comprises the following steps:
s1: preparing and providing a CaSO4 crystal reinforcing material and a silicon nano reinforcing agent;
s2: adding 50-70 parts of graded sand;
s3: adding 20-50 parts of anhydrous gypsum or semi-hydrated gypsum;
s4: 5-10 parts of Portland cement, 0.1-0.5 part of water-retaining agent, 0.1-0.5 part of gypsum retarder, 0.1-0.5 part of special water-reducing powder, 5-10 parts of CaSO4 crystal reinforcing material and 3-5 parts of silicon nano reinforcing agent are added and uniformly stirred in a high-speed stirring device to prepare the special mortar for the ground of the building floor and the floating building floor.
The preparation method of the CaSO4 crystal reinforcing material comprises the following steps:
calcining silicon oxide, iron oxide, titanium oxide, beryllium oxide, spodumene, limestone, rare earth and unstable light metal at high temperature to prepare a mixed material;
after the mixed material is taken out of the kiln and is cooled extremely, 3 parts of the mixed material, 0.3 part of rare earth, 1 part of calcium silicate, 1 part of calcium ferrite and 1 part of calcium aluminate are taken, high-order electrovalence rare earth is added, and the mixed material is ground to the fineness of 400-mesh and 600-mesh in a high-temperature hot air environment and is naturally cooled to obtain the calcium aluminate.
The preparation method of the silicon nano reinforcing agent comprises the following steps:
and spraying saturated water-soluble silicon dioxide into the nano SiO2 powder, and drying until the water content is not more than 2% to obtain the silicon nano reinforcing agent.
The preparation method of the special water reducing powder comprises the following steps:
firstly adding 30 parts of water, then sequentially adding 10 parts of polyethylene glycol, 0.1 part of hydroquinone, 8 parts of butyl methacrylate, 8 parts of methyl methacrylate, 40 parts of allyl polyoxyethylene and 4 parts of acrylic acid, stirring while mixing and dissolving, and heating to 95-100 ℃ for 2 hours to obtain a component A;
adding 2.6 parts of water, 4 parts of acrylamide and 0.015 part of hydroquinone, stirring while mixing and dissolving, heating to 45-55 ℃, slowly dropwise adding 4.5 parts of formaldehyde solution, dropwise adding triethanolamine to adjust the pH value to 8-10, maintaining the temperature to 45-55 ℃ for 2 hours, heating to 70-90 ℃, adding sulfamic acid, adjusting the pH value to 10-12 by using sodium hydroxide solution, maintaining the temperature to 70-90 ℃ for 2 hours, and adjusting the pH value to 7 by using 20% dilute sulfuric acid to obtain a component B;
uniformly mixing 1.6 parts of a component A, 4.3 parts of a component B, 1.56 parts of methacrylic acid sulfonic acid and 1.5 parts of acrylic acid, heating to 70 ℃, slowly adding a 20% potassium persulfate solution, heating to 80 ℃ after adding, maintaining for 5 hours, stirring continuously, cooling after hardening, adjusting the pH to 7 by using a sodium hydroxide solution, testing the solid content, and adjusting the solid content to 70% by using deionized water to obtain a special water reducer mother solution;
mixing gas-phase silicon dioxide powder and water-absorbing resin powder according to the ratio of 1:0.3, spraying special water reducing agent mother liquor into the mixed powder, adsorbing excessive water in the special water reducing agent mother liquor, introducing 80 ℃ hot air into a cyclone barrel, removing partial water to obtain water reducing agent powder z, and mixing the water reducing agent powder z and melamine water reducing agent powder according to the ratio of 5:1 to obtain the special water reducing powder.
It should be noted that the parts mentioned in the manufacturing method of the CaSO4 crystal reinforcing material, the silicon nano reinforcing agent and the special water reducing powder and the parts of the components mentioned in the special mortar for the building floor and the floating floor are independent from each other, and only represent the proportion of each material component in the respective manufacturing process.
The invention provides the following specific embodiments:
example 1
The composition consists of the following components in parts by weight: 20-50 parts of anhydrous gypsum, 5-10 parts of CaSO4 crystal reinforcing material, 3-5 parts of silicon nano reinforcing agent, 50-70 parts of graded sand, 5-10 parts of Portland cement, 0.1-0.5 part of special water reducing powder, 0.1-0.5 part of water retaining agent and 0.1-0.5 part of gypsum retarder.
Example 2
The composition consists of the following components in parts by weight: 5-10 parts of anhydrous gypsum, 30-50 parts of beta-type semi-hydrated gypsum, 5-10 parts of alpha-type semi-hydrated gypsum, 5-10 parts of CaSO4 crystal reinforcing material, 3-5 parts of silicon nano reinforcing agent, 50-70 parts of graded sand, 5-10 parts of portland cement, 0.1-0.5 part of special water reducing powder, 0.1-0.5 part of water retaining agent and 0.1-0.5 part of gypsum retarder.
Example 3
The composition consists of the following components in parts by weight: 30-50 parts of beta-type semi-hydrated gypsum, 5-10 parts of CaSO4 crystal reinforcing material, 3-5 parts of silicon nano reinforcing agent, 50-70 parts of graded sand, 5-10 parts of Portland cement, 0.1-0.5 part of special water reducing powder, 0.1-0.5 part of water retaining agent and 0.1-0.5 part of gypsum retarder.
In the invention, the beta-type semi-hydrated gypsum and the alpha-type semi-hydrated gypsum are both one of semi-hydrated gypsum.
The mortar prepared according to the embodiment and specially used for the ground and the floating floor of the building and the mortar prepared according to the following comparative example without adding CaSO4 crystal reinforcing material and silicon nano reinforcing agent are respectively tested for various parameters.
Comparative example 1 formulation:
30-50 parts of beta-type semi-hydrated gypsum, 50-70 parts of graded sand, 5-10 parts of Portland cement, 0.1-0.5 part of special water reducing powder, 0.1-0.5 part of water-retaining agent and 0.1-0.5 part of gypsum retarder.
Comparative example 2 formulation:
5-10 parts of anhydrous gypsum, 30-50 parts of beta-type semi-hydrated gypsum, 5-10 parts of alpha-type semi-hydrated gypsum, 50-70 parts of graded sand, 5-10 parts of Portland cement, 0.1-0.5 part of special water reducing powder, 0.1-0.5 part of water retaining agent and 0.1-0.5 part of gypsum retarder.
The minimum strength required by the ground leveling material is not less than 15MPa according to the specification of the quality acceptance of the construction ground engineering. As can be seen from the above table test data, in the case of the strength data without adding the CaSO4 crystal reinforcing material, the silicon nano reinforcing agent, the strength of comparative example 1 and comparative example 2 did not exceed 15MPa after one year, and the strength was inverted after one year, and it was not substantially used as a floor material.
The mortar for the building floor and the floating floor solves the problem that the existing cement mortar is easy to crack by using semi-hydrated gypsum or anhydrous gypsum, can be used for the building floor and the floating floor, has the compressive strength check and acceptance meeting the specification after one year because the CaSO4 crystal reinforcing material and the silicon nano reinforcing agent are added, and simultaneously solves the problem that the mortar for the building floor and the floating floor is poor in water resistance, and is difficult to hydrolyze after water is soaked.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (9)
1. The mortar special for the building floor and the floating building floor is characterized by comprising the following components in parts by weight: 20-50 parts of anhydrous gypsum or semi-hydrated gypsum, 5-10 parts of CaSO4 crystal reinforcing material, 3-5 parts of silicon nano reinforcing agent, 50-70 parts of graded sand, 5-10 parts of Portland cement, 0.1-0.5 part of special water reducing powder, 0.1-0.5 part of water retaining agent and 0.1-0.5 part of gypsum retarder.
2. The mortar special for building floors and floating floors according to claim 1, wherein the graded sand is 30-200 mesh graded sand.
3. The mortar special for building floors and floating floors according to claim 1, wherein the portland cement is 52.5R.
4. The mortar special for building floors and floating floors as claimed in claim 1, wherein the water-retaining agent is methylcellulose.
5. The mortar special for building floors and floating floors according to claim 1, wherein the CaSO4 crystal reinforcing material comprises the following components in parts by weight: the material comprises, by weight, 3 parts of a mixed material, 0.3 part of rare earth, 1 part of calcium silicate, 1 part of calcium ferrite and 1 part of calcium aluminate, wherein the mixed material is prepared by calcining silicon oxide, iron oxide, titanium oxide, beryllium oxide, spodumene, limestone, rare earth and unstable light metal at a high temperature.
6. The mortar special for building floors and floating floors as claimed in claim 1, wherein the silicon nano reinforcing agent is composed of nano SiO2 powder and saturated water-soluble silicon dioxide.
7. The production method of the mortar special for the building floor and the floating floor as claimed in any one of claims 1 to 6, wherein the production method of the mortar special for the building floor and the floating floor comprises the following steps:
s1: preparing and providing a CaSO4 crystal reinforcing material and a silicon nano reinforcing agent;
s2: adding 50-70 parts of graded sand;
s3: adding 20-50 parts of anhydrous gypsum or semi-hydrated gypsum;
s4: 5-10 parts of Portland cement, 0.1-0.5 part of water-retaining agent, 0.1-0.5 part of gypsum retarder, 0.1-0.5 part of special water-reducing powder, 5-10 parts of CaSO4 crystal reinforcing material and 3-5 parts of silicon nano reinforcing agent are added and uniformly stirred in a high-speed stirring device to prepare the special mortar for the ground of the building and the floating building.
8. The method for producing mortar special for building floors and floating floors according to claim 7, wherein the CaSO4 crystal reinforcing material is prepared by the following steps:
calcining silicon oxide, iron oxide, titanium oxide, beryllium oxide, spodumene, limestone, rare earth and unstable light metal at high temperature to prepare a mixed material;
after the mixed material is taken out of the kiln and is cooled extremely, 3 parts of the mixed material, 0.3 part of rare earth, 1 part of calcium silicate, 1 part of calcium ferrite and 1 part of calcium aluminate are taken, high-order electrovalence rare earth is added, and the mixed material is ground to the fineness of 400-mesh and 600-mesh in a high-temperature hot air environment and is naturally cooled to obtain the calcium aluminate.
9. The production method of the mortar special for the building floors and the floating floors as claimed in claim 8, wherein the preparation method of the silicon nano reinforcing agent comprises the following steps:
and spraying saturated water-soluble silicon dioxide into the nano SiO2 powder, and drying until the water content is not more than 2% to obtain the silicon nano reinforcing agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010792357.3A CN111875335B (en) | 2020-08-09 | 2020-08-09 | Mortar special for building floor and floating building floor and production method thereof |
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| CN202010792357.3A CN111875335B (en) | 2020-08-09 | 2020-08-09 | Mortar special for building floor and floating building floor and production method thereof |
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| CN111875335B CN111875335B (en) | 2021-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113816713A (en) * | 2021-10-15 | 2021-12-21 | 重庆杰博思石膏有限公司 | Phosphorus II type anhydrous gypsum-based masonry mortar and preparation method thereof |
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| CN111875335B (en) | 2021-11-16 |
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