CN113800834A - High-compactness waterproof mortar and preparation process thereof - Google Patents
High-compactness waterproof mortar and preparation process thereof Download PDFInfo
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- CN113800834A CN113800834A CN202111123283.5A CN202111123283A CN113800834A CN 113800834 A CN113800834 A CN 113800834A CN 202111123283 A CN202111123283 A CN 202111123283A CN 113800834 A CN113800834 A CN 113800834A
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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
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- Chemical Kinetics & Catalysis (AREA)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides high-compactness waterproof mortar and a preparation process thereof, wherein the preparation process comprises the following steps: s1 preparing raw materials; preparation of S2 modified material: putting montmorillonite and limestone into a ball mill for grinding, screening to obtain mixed fixed powder after grinding, adding a sulfuric acid solution into the mixed fixed powder, and stirring and mixing through a stirrer to obtain a dispersed mixed solution; s3: adding a certain amount of sodium hydroxide solution into the dispersion mixed solution obtained in the step 2 again, stirring, mixing, heating and grinding to obtain modified powder; s4: stirring and mixing the sulfate cement, the machine-made sand and the straw granules; s5: and (4) placing the material obtained in the step S4 into a reaction kettle, controlling the temperature to be 120-135 ℃, then sequentially adding a polycarboxylic acid water reducing agent, organic silicon, a defoaming agent, cellulose ether, polyethylene glycol stearate, ethylene and vinyl acetate, adding a modified material after stirring and mixing for 2-3h, and stirring for 20-45min to obtain the waterproof mortar.
Description
Technical Field
The invention relates to the technical field of mortar, and mainly relates to high-compactness waterproof mortar and a preparation process thereof.
Background
Mortar is a bonding substance used for building bricks on buildings, and is formed by adding water into sand and cementing materials (cement, lime paste, clay and the like) according to a certain proportion, and is also called mortar and also used as mortar.
The existing mortar is the polymer modified waterproof mortar disclosed in patent No. CN200910199034.7, and comprises portland cement, graded sand, redispersible latex powder, a water reducing agent, a water-retaining agent, an expanding agent and an active filler, wherein the redispersible latex powder is applied to seal the pores of the mortar after film formation, block a water permeation channel and endow the mortar with excellent cohesive force and flexibility. The high-strength waterproof mortar disclosed by the invention can be widely applied to waterproof construction of walls, toilets, basements and other places, and has the characteristics of convenience in use, wide application range, good durability, long service life and the like.
However, the conventional mortar has a problem of poor water resistance due to the presence of interconnected pores, harmful pores, and multiple harmful pores.
Disclosure of Invention
The invention provides high-compactness waterproof mortar and a preparation process thereof, which are used for solving the technical problem of poor waterproofness caused by the fact that the conventional mortar contains intercommunicating pores, harmful pores and multiple harmful pores.
In order to achieve the purpose, the invention provides the following technical scheme: a high-compactness waterproof mortar and a preparation process thereof comprise the following preparation steps:
s1 preparation of raw material: sulfate cement, machine-made sand, a polycarboxylic acid water reducing agent, organic silicon, a defoaming agent, cellulose ether, a sodium hydroxide solution, polyethylene glycol stearate, ethylene, vinyl acetate, montmorillonite, limestone, a sulfuric acid solution and straws;
preparation of S2 modified material: putting montmorillonite and limestone into a ball mill for grinding, screening to obtain mixed fixed powder after grinding, adding a sulfuric acid solution into the mixed fixed powder, and stirring and mixing through a stirrer to obtain a dispersed mixed solution;
s3: adding a certain amount of sodium hydroxide solution into the dispersion mixed solution obtained in the step 2 again, stirring and mixing the mixture by a stirrer, and heating and grinding the mixture to form modified powder;
s4: crushing the straws by using a crusher, and then stirring and mixing the sulfate cement, the machine-made sand and the straw granules;
s5: and (2) placing the material obtained in the step (S4) into a reaction kettle, controlling the temperature to be 120-135 ℃, then sequentially adding a polycarboxylic acid water reducing agent, organic silicon, a defoaming agent, cellulose ether, polyethylene glycol stearate, ethylene and vinyl acetate, adding the modified material obtained in the step (S2-S3) after stirring and mixing for 2-3 hours, adding a certain amount of sulfuric acid solution to adjust the pH value to be 3-5, and stirring for 20-45min to obtain the waterproof mortar.
Further, the raw material components comprise: 10-15 parts of sulfate cement, 9-12 parts of machine-made sand, 2-3 parts of a polycarboxylic acid water reducing agent, 1-3 parts of organic silicon, 1-2 parts of a defoaming agent, 3-4 parts of cellulose ether, 5-7 parts of a sodium hydroxide solution, 2-4 parts of polyethylene glycol stearate, 2-3 parts of ethylene, 1-2 parts of vinyl acetate, 6-8 parts of montmorillonite, 5-7 parts of limestone, 3-5 parts of a sulfuric acid solution and 15-20 parts of straws.
Further, in step S2, a sulfuric acid solution is added to adjust the pH to 5-6 for mixing, and the rotation speed of the stirrer is 200-300 r/min.
Further, the ratio of montmorillonite to limestone in step S2 is 4.5:1.5.
Further, the machine-made sand is: the sand particle size is respectively as follows: 5-2.5 mm coarse sand, 2.49-1 mm medium sand and less than 1mm fine sand, wherein the cellulose ether: the viscosity is 15000-40000.
Further, the straw crushed in the step S4 is firstly added with a sulfuric acid solution for soaking, after soaking for 25-35min, the soaked straw crushed material is filtered and mixed with sulfate cement and machine-made sand, and in the mixing process, an ultrasonic oscillator is used for carrying out corresponding oscillation treatment at an oscillation frequency of 70-120Khz every 3-5 min.
Further, in the step S5, adding a viscous material prepared from a polycarboxylic acid water reducing agent, organic silicon, a defoaming agent, cellulose ether, polyethylene glycol stearate, ethylene and vinyl acetate, heating and drying for 1 hour, taking out the viscous material to prepare a prefabricated member with a corresponding shape, punching the prefabricated member through a corresponding punching assembly, filling a modifying material into a plurality of holes, drying for 25-35min, filling sulfate cement and machine-made sand above the holes, and drying to obtain the waterproof mortar.
Compared with the prior art, the invention has the beneficial effects that:
the crushed straws are added into the mortar, then the mortar is heated, so that a thickening agent reaction is increased, the viscosity of the mortar is increased, then the punching is carried out, a certain modifier is added, the penetration is carried out in the mortar in the heating process of the modifier, so that the higher compactness of the mortar is realized, and finally the materials are supplemented, and the temperature is increased simultaneously until the viscosity is fixed in a certain range.
Drawings
FIG. 1 is a table of data analysis according to the present invention.
Detailed Description
In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Embodiment 1, a waterproof mortar with high compactness and a preparation process thereof, comprising the following preparation steps:
s1 preparation of raw material: 10-15 parts of sulfate cement, 9-12 parts of machine-made sand, 2-3 parts of a polycarboxylic acid water reducing agent, 1-3 parts of organic silicon, 1-2 parts of a defoaming agent, 3-4 parts of cellulose ether, 5-7 parts of a sodium hydroxide solution, 2-4 parts of polyethylene glycol stearate, 2-3 parts of ethylene, 1-2 parts of vinyl acetate, 6-8 parts of montmorillonite, 5-7 parts of limestone and 3-5 parts of a sulfuric acid solution, wherein the machine-made sand is as follows: the sand particle size is respectively as follows: 5-2.5 mm coarse sand, 2.49-1 mm medium sand and less than 1mm fine sand, wherein the cellulose ether: the viscosity is 15000-40000;
preparation of S2 modified material: putting montmorillonite and limestone with the ratio of 4.5:1.5 into a ball mill for grinding, performing screening treatment after grinding to obtain mixed fixed powder, adding a sulfuric acid solution into the mixed fixed powder to adjust the PH to 5-6 for mixing, and stirring and mixing by a stirrer with the rotation speed of 200-300r/mi to obtain a dispersed mixed solution;
s3: adding a certain amount of sodium hydroxide solution into the dispersion mixed solution obtained in the step 2 again, stirring and mixing the mixture by a stirrer, and heating and grinding the mixture to form modified powder; 8, S4: crushing straws by using a crusher, stirring and mixing sulfate cement, machine-made sand and straw granules, crushing the straws, adding a sulfuric acid solution for soaking, soaking for 25-35min, filtering and mixing the soaked straw crushed materials with the sulfate cement and the machine-made sand, wherein in the mixing process, an ultrasonic oscillator is used for carrying out corresponding oscillation treatment at intervals of 3-5min, and the oscillation frequency is 70-120 Khz;
s5: and (2) placing the material obtained in the step (S4) into a reaction kettle, controlling the temperature to be 120-135 ℃, then sequentially adding a polycarboxylic acid water reducing agent, organic silicon, a defoaming agent, cellulose ether, polyethylene glycol stearate, ethylene and vinyl acetate, heating and drying for 1h, taking out to prepare a prefabricated part with a corresponding shape, punching the prefabricated part through a corresponding punching assembly, then filling a modifying material into a plurality of holes, drying for 25-35min, filling sulfate cement and machine-made sand above the holes, drying to obtain waterproof mortar, and adding a certain amount of sulfuric acid solution in the stirring process to adjust the pH value to be 3-5.
s1 preparation of raw material: 10-15 parts of sulfate cement, 9-12 parts of machine-made sand, 2-3 parts of a polycarboxylic acid water reducing agent, 1-3 parts of organic silicon, 1-2 parts of a defoaming agent, 3-4 parts of cellulose ether, 5-7 parts of a sodium hydroxide solution, 2-4 parts of polyethylene glycol stearate, 2-3 parts of ethylene, 1-2 parts of vinyl acetate, 6-8 parts of montmorillonite, 5-7 parts of limestone, 3-5 parts of a sulfuric acid solution and 15-20 parts of straws, wherein the machine-made sand is prepared from the following components in parts by weight: the sand particle size is respectively as follows: 5-2.5 mm coarse sand, 2.49-1 mm medium sand and less than 1mm fine sand, wherein the cellulose ether: the viscosity is 15000-40000;
preparation of S2 modified material: putting montmorillonite and limestone with the proportion of 6:1 into a ball mill for grinding, performing screening treatment after grinding to obtain mixed fixed powder, adding a sulfuric acid solution into the mixed fixed powder to adjust the PH to 4-5 for mixing, and stirring and mixing through a stirrer with the rotation speed of 200-300r/mi to obtain a dispersed mixed solution;
s3: adding a certain amount of sodium hydroxide solution into the dispersion mixed solution obtained in the step 2 again, stirring and mixing the mixture by a stirrer, and heating and grinding the mixture to form modified powder;
s4: crushing straws by using a crusher, stirring and mixing sulfate cement, machine-made sand and straw granules, crushing the straws, adding a sulfuric acid solution for soaking, soaking for 25-35min, filtering and mixing the soaked straw crushed materials with the sulfate cement and the machine-made sand, wherein in the mixing process, an ultrasonic oscillator is used for carrying out corresponding oscillation treatment at intervals of 3-5min, and the oscillation frequency is 70-120 Khz;
s5: and (2) placing the material obtained in the step (S4) into a reaction kettle, controlling the temperature to be 120-135 ℃, then sequentially adding a polycarboxylic acid water reducing agent, organic silicon, a defoaming agent, cellulose ether, polyethylene glycol stearate, ethylene and vinyl acetate, heating and drying for 1h, taking out to prepare a prefabricated part with a corresponding shape, punching the prefabricated part through a corresponding punching assembly, then filling a modifying material into a plurality of holes, drying for 25-35min, filling sulfate cement and machine-made sand above the holes, drying to obtain waterproof mortar, and adding a certain amount of sulfuric acid solution in the stirring process to adjust the pH value to be 3-5.
s1 preparation of raw material: 10-15 parts of sulfate cement, 9-12 parts of machine-made sand, 2-3 parts of a polycarboxylic acid water reducing agent, 1-3 parts of organic silicon, 1-2 parts of a defoaming agent, 3-4 parts of cellulose ether, 5-7 parts of a sodium hydroxide solution, 2-4 parts of polyethylene glycol stearate, 2-3 parts of ethylene, 1-2 parts of vinyl acetate, 6-8 parts of montmorillonite, 5-7 parts of limestone and 3-5 parts of a sulfuric acid solution, wherein the machine-made sand is as follows: the sand particle size is respectively as follows: 5-2.5 mm coarse sand, 2.49-1 mm medium sand and less than 1mm fine sand, wherein the cellulose ether: the viscosity is 15000-40000;
preparation of S2 modified material: putting montmorillonite and limestone with the proportion of 6:1 into a ball mill for grinding, performing screening treatment after grinding to obtain mixed fixed powder, adding a sulfuric acid solution into the mixed fixed powder to adjust the PH to 4-5 for mixing, and stirring and mixing through a stirrer with the rotation speed of 200-300r/mi to obtain a dispersed mixed solution;
s3: adding a certain amount of sodium hydroxide solution into the dispersion mixed solution obtained in the step 2 again, stirring and mixing the mixture by a stirrer, and heating and grinding the mixture to form modified powder;
s4: stirring and mixing the sulfate cement and the machine-made sand, wherein in the mixing process, an ultrasonic oscillator is used for carrying out corresponding oscillation treatment at intervals of 3-5min, and the oscillation frequency is 70-120 Khz;
s5: and (2) placing the material obtained in the step (S4) into a reaction kettle, controlling the temperature to be 120-135 ℃, then sequentially adding a polycarboxylic acid water reducing agent, organic silicon, a defoaming agent, cellulose ether, polyethylene glycol stearate, ethylene and vinyl acetate, heating and drying for 1h, taking out to prepare a prefabricated part with a corresponding shape, punching the prefabricated part through a corresponding punching assembly, then filling a modifying material into a plurality of holes, drying for 25-35min, filling sulfate cement and machine-made sand above the holes, drying to obtain waterproof mortar, and adding a certain amount of sulfuric acid solution in the stirring process to adjust the pH value to be 3-5.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A high-compactness waterproof mortar and a preparation process thereof are characterized in that: the preparation method comprises the following preparation steps:
s1 preparation of raw material: sulfate cement, machine-made sand, a polycarboxylic acid water reducing agent, organic silicon, a defoaming agent, cellulose ether, a sodium hydroxide solution, polyethylene glycol stearate, ethylene, vinyl acetate, montmorillonite, limestone, a sulfuric acid solution and straws;
preparation of S2 modified material: putting montmorillonite and limestone into a ball mill for grinding, screening to obtain mixed fixed powder after grinding, adding a sulfuric acid solution into the mixed fixed powder, and stirring and mixing through a stirrer to obtain a dispersed mixed solution;
s3: adding a certain amount of sodium hydroxide solution into the dispersion mixed solution obtained in the step 2 again, stirring and mixing the mixture by a stirrer, and heating and grinding the mixture to form modified powder;
s4: crushing the straws by using a crusher, and then stirring and mixing the sulfate cement, the machine-made sand and the straw granules;
s5: and (2) placing the material obtained in the step (S4) into a reaction kettle, controlling the temperature to be 120-135 ℃, then sequentially adding a polycarboxylic acid water reducing agent, organic silicon, a defoaming agent, cellulose ether, polyethylene glycol stearate, ethylene and vinyl acetate, adding the modified material obtained in the step (S2-S3) after stirring and mixing for 2-3 hours, adding a certain amount of sulfuric acid solution to adjust the pH value to be 3-5, and stirring for 20-45min to obtain the waterproof mortar.
2. The high-compactness waterproof mortar and the preparation process thereof according to claim 1 are characterized in that: the raw materials comprise the following components: 10-15 parts of sulfate cement, 9-12 parts of machine-made sand, 2-3 parts of a polycarboxylic acid water reducing agent, 1-3 parts of organic silicon, 1-2 parts of a defoaming agent, 3-4 parts of cellulose ether, 5-7 parts of a sodium hydroxide solution, 2-4 parts of polyethylene glycol stearate, 2-3 parts of ethylene, 1-2 parts of vinyl acetate, 6-8 parts of montmorillonite, 5-7 parts of limestone, 3-5 parts of a sulfuric acid solution and 15-20 parts of straws.
3. The high-compactness waterproof mortar and the preparation process thereof according to claim 1 are characterized in that: in step S2, sulfuric acid solution is added to adjust pH to 5-6 for mixing, and the rotation speed of the stirrer is 200-300 r/min.
4. The high-compactness waterproof mortar and the preparation process thereof according to claim 1 are characterized in that: the ratio of montmorillonite to limestone in step S2 is 4.5:1.5.
5. The high-compactness waterproof mortar and the preparation process thereof according to claim 1 are characterized in that: the machine-made sand comprises: the sand particle size is respectively as follows: 5-2.5 mm coarse sand, 2.49-1 mm medium sand and less than 1mm fine sand, wherein the cellulose ether: the viscosity is 15000-40000.
6. The high-compactness waterproof mortar and the preparation process thereof according to claim 1 are characterized in that: and S4, crushing the straws, adding a sulfuric acid solution for soaking, filtering and mixing the soaked crushed straws with sulfate cement and machine-made sand after soaking for 25-35min, wherein the vibration frequency of the ultrasonic oscillator is 70-120Khz during the mixing process by using an ultrasonic oscillator every 3-5 min.
7. The high-compactness waterproof mortar and the preparation process thereof according to claim 1 are characterized in that: and step S5, adding a viscous material prepared from a polycarboxylic acid water reducing agent, organic silicon, a defoaming agent, cellulose ether, polyethylene glycol stearate, ethylene and vinyl acetate, heating and drying for 1h, taking out the viscous material to prepare a prefabricated member with a corresponding shape, punching the prefabricated member through a corresponding punching assembly, filling a modification material into a plurality of holes, drying for 25-35min, filling sulfate cement and machine-made sand above the holes, and drying to obtain the waterproof mortar.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106630824A (en) * | 2016-11-30 | 2017-05-10 | 合肥神舟建筑集团有限公司 | High-cracking-resistant surface coating mortar and preparation method thereof |
| CN108059413A (en) * | 2018-01-30 | 2018-05-22 | 河南胜泽建筑保温工程有限公司 | A kind of novel environment-friendly insulating mortar |
| CN110981324A (en) * | 2019-12-09 | 2020-04-10 | 慈溪市果雨电子商务有限公司 | Preparation method of high-compression-resistance durable waterproof mortar |
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- 2021-09-24 CN CN202111123283.5A patent/CN113800834A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630824A (en) * | 2016-11-30 | 2017-05-10 | 合肥神舟建筑集团有限公司 | High-cracking-resistant surface coating mortar and preparation method thereof |
| CN108059413A (en) * | 2018-01-30 | 2018-05-22 | 河南胜泽建筑保温工程有限公司 | A kind of novel environment-friendly insulating mortar |
| CN110981324A (en) * | 2019-12-09 | 2020-04-10 | 慈溪市果雨电子商务有限公司 | Preparation method of high-compression-resistance durable waterproof mortar |
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Application publication date: 20211217 |