CN115159921A - Oil-resistant seepage mortar and preparation method thereof - Google Patents
Oil-resistant seepage mortar and preparation method thereof Download PDFInfo
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- CN115159921A CN115159921A CN202210797306.9A CN202210797306A CN115159921A CN 115159921 A CN115159921 A CN 115159921A CN 202210797306 A CN202210797306 A CN 202210797306A CN 115159921 A CN115159921 A CN 115159921A
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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
- C04B28/04—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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00293—Materials impermeable to liquids
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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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 relates to the technical field of building materials and discloses oil-resistant mortar which comprises the following components in parts by weight: 240-320 parts of cement, 550-650 parts of quartz graded sand, 30-70 parts of compound compacting agent, 70-130 parts of slag micro powder, 10-16 parts of redispersible latex powder, 1-3 parts of high molecular polymer and 1-5 parts of early strength agent. According to the oil-resistant seepage mortar and the preparation method thereof, through the addition of the redispersible latex powder, a continuous closed film (a so-called organic-inorganic cross-linked structure) is formed by a hardened mortar pore structure, so that the anti-erosion capacity of a mortar hydration hardened body is greatly enhanced, the binding force with base layer concrete is enhanced in multiples, the anti-erosion capacity and durability of the oil-resistant mortar are improved, the hydration hardening process of the oil-resistant mortar is accelerated by an early strength agent calcium formate, and the oil-resistant mortar selects Dan Yingzhi graded sand as aggregate, conforms to the closest packing principle and enables the hydration hardened body to be more compact.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to oil-resistant seepage mortar and a preparation method thereof.
Background
The mortar is a bonding substance used for building bricks on a building, is formed by adding water into sand and cementing materials (cement, lime paste, clay and the like) according to a certain proportion, is also called mortar and is also used as mortar, and the mortar is usually cement mortar, mixed mortar (or cement lime mortar), lime mortar and clay mortar.
The prior common oil-resistant mortar has the following problems: 1. the impermeability grade is low, so that the concrete cannot completely prevent various grease from permeating, and the concrete is damaged; 2. the adhesive force with the base layer concrete is poor, so that hollowing and even falling of an oil-resistant mortar layer are easily caused; 3. the construction performance is not good enough; 4. the water retention is poor, and the surface of the mortar is easy to dry and crack.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the oil-resistant seepage mortar and the preparation method thereof, which have the advantages of improving the anti-seepage property and the like, and solve the problem of low anti-seepage grade of similar products; various oils permeate the base layer to cause damage; the construction performance is poor; the adhesive force with the base layer is low, and the problems of hollowing, cracking and the like are easy to occur.
(II) technical scheme
In order to achieve the purpose of improving the permeation resistance, the invention provides the following technical scheme: the invention discloses oil-resistant mortar which comprises the following raw materials in parts by weight: 240-320 parts of cement, 550-650 parts of quartz graded sand, 30-70 parts of compound compacting agent, 70-130 parts of slag micro powder, 10-16 parts of redispersible latex powder, 1-3 parts of high molecular polymer and 1-5 parts of early strength agent.
Preferably, the cement is 42.5-grade ultrafine cement, and the slag micro powder is S95 or above.
Preferably, the redispersible latex powder is imported from Germany
5010, the high molecular polymer is hydroxypropyl methylcellulose (HPMC).
Preferably, the early strength agent is calcium formate, and the thixotropic agent is an imported 602 type thixotropic agent special for dry-mixed mortar.
Preferably, alunite [ potassium aluminum sulfate KAl (SO 4) 2] is introduced into the oil-resistant mortar and reacts with cement hydration products to form ettringite (C3 A.3CaSO 4.32H2O), and the plastic mortar is subjected to the action of crystal expansion stress.
The invention aims to solve another technical problem of providing a preparation method of oil-resistant mortar, which comprises the following steps:
1) Guiding cement and quartz graded sand into respective pre-homogenizing storehouses by using guide-in equipment for pre-homogenizing;
2) Continuously batching the materials according to the weight ratio under the control of a computer;
3) Stirring the prepared mixture in an HZ-20 type forced stirrer at a low speed for 3-5 minutes, and then stirring at a medium speed for 4-6 minutes;
4) Leading the mixed dry powder into a finished product homogenizing warehouse;
5) Automatically packaging by electronic metering;
6) And (6) warehousing of finished products.
(III) advantageous effects
Compared with the prior art, the invention provides oil-resistant seepage mortar and a preparation method thereof, and the oil-resistant seepage mortar has the following beneficial effects:
1. the oil-resistant seepage mortar and the preparation method thereof select superfine cement and slag micropowder as cementing materials, the total surface area of which is far larger than that of aggregate, researches and practices fully prove that the oil-resistant concrete can be prepared by the fact that the total surface area of the cementing materials is larger than that of the aggregate, the slag micropowder is a foundation for preventing various grease from permeating, the slag micropowder has the functions of filling micro pores and capillaries, and a compound compacting agent is introduced, alunite [ aluminum potassium sulfate KA l (SO 4) 2] is introduced into the oil-resistant mortar and reacts with cement hydration products to form ettringite (C3 A.3CaSO 4.32H2O), the plastic mortar is subjected to the action of crystallization expansion stress, on one hand, shrinkage is compensated, cracks are eliminated, and the cement stones tend to be more compact, and the researches and practices prove that: the ferric hydroxide gel blocks the capillary pores of the hydration hardening body, and can prevent the penetration of various oils and fats; and various gels, such as hydrated calcium silicate gel (C-S-H), are added to further fill harmful pores with the pore diameter of more than 280 mu in concrete, so that the water tightness and the impermeability of the mortar are improved.
2. The oil-resistant seepage mortar and the preparation method thereof have the advantages that through the addition of the redispersible latex powder, a continuous closed film (an organic-inorganic cross-linked structure) is formed in a hardened mortar pore structure, so that the anti-erosion capability of a mortar hydration hardened body is greatly enhanced, the binding power with base concrete is enhanced in multiples, the anti-erosion capability and the durability of the oil-resistant mortar are improved, the early strength agent calcium formate accelerates the hydration hardening process of the oil-resistant mortar, the Dan Yingzhi graded mixed sand is selected as an aggregate of the oil-resistant mortar, the closest packing principle is met, the hydration hardened body is more compact, the thixotropic agent and the water retention thickening agent (HPMC) are adopted, the construction performance and the crack resistance of the oil-resistant mortar are greatly improved, the industrial production is controlled by an electronic computer, the mixing ratio is accurate and uniform in quality.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: the oil-resistant mortar comprises the following components in parts by weight: 280 parts of cement, 550 parts of quartz-grade mixed sand, 50 parts of compound compacting agent, 100 parts of S95 and above-grade slag micro powder, 13 parts of redispersible latex powder, 2 parts of high polymer, 3 parts of early strength agent and 2 parts of thixotropic agent, wherein the cement is 42.5-grade superfine cement, and the quartz-grade mixed sand is artificial sand (fineness modulus) conforming to the closest packing principle<2.5 The composite compacting agent is obtained by compounding ferric hydroxide and an expansion component, the slag micro powder is S95 or above, and the redispersible latex powder is imported from Germany
5010, the high molecular polymer is hydroxypropyl methyl cellulose (HPMC), the early strength agent is calcium formate, and the thixotropic agent is a special thixotropic agent for imported 602 type dry-mixed mortar.
It should be noted that: the oil-resistant mortar adopts a compound compacting agent, has excellent performance of resisting the penetration of various grease, and adopts the German imported redispersible latex powder
5010 modification, the mortar after hardening forms a cross-linked structure of organic material and inorganic material, thus the mortar is more compact and impervious, and the oil-resistant sandThe mortar has high bonding force with a base layer, excellent construction performance, no hollowing and no cracking, and the oil-resistant mortar is added
Dried and compacted
The graded stones can be made into oil-resistant concrete, the oil-resistant mortar is produced in large scale by factory premixing, and the product quality is uniform and stable.
The preparation method of the oil-resistant mortar comprises the following steps:
1) Guiding the cement and the quartz-quality graded sand into respective pre-homogenizing storehouses for pre-homogenizing by using guide-in equipment;
2) Continuously batching the materials according to the weight proportion under the control of a computer;
3) Stirring the prepared mixture in an HZ-20 type forced stirrer at a low speed for 3-5 minutes, and then stirring at a medium speed for 4-6 minutes;
4) Leading the mixed dry powder into a finished product homogenizing warehouse;
5) Automatically packaging by electronic metering;
6) And warehousing the finished product.
Compared with the prior similar products and technologies, the oil-resistant mortar has the advantages of resistance to the penetration of various oils and fats, good construction performance, strong bonding force with a base layer, no hollowing and no cracking, and can be prepared into oil-resistant concrete by adding 20-30% of dry and compact 5-35 mm-grade stone.
The second embodiment: the oil-resistant mortar comprises the following components in parts by weight: 300 parts of cement, 550 parts of quartz-grade mixed sand, 50 parts of compound compacting agent, 80 parts of S95 and above-grade slag micro powder, 13 parts of redispersible latex powder, 2 parts of high polymer, 3 parts of early strength agent and 2 parts of thixotropic agent, wherein the cement is 42.5-grade superfine cement, and the quartz-grade mixed sand is artificial sand (fineness modulus) conforming to the closest packing principle<2.5 The composite compacting agent is obtained by compounding ferric hydroxide and an expansion component, the slag micro powder is S95 or above, and the redispersible latex powder is imported from Germany
5010, the high molecular polymer is hydroxypropyl methyl cellulose (HPMC), the early strength agent is calcium formate, and the thixotropic agent is a special thixotropic agent for imported 602 type dry-mixed mortar.
It should be noted that: the oil-resistant mortar adopts a compound compacting agent, has excellent performance of resisting the penetration of various grease, and adopts the German imported redispersible latex powder
5010 modifying, hardening the mortar to form a cross-linked structure of organic material and inorganic material, thereby being more compact and impervious, having high adhesive force with the base layer, excellent construction performance, no hollowing and no cracking, and being added with the oil-resistant mortar
Dried and compacted
The graded stones can be made into oil-resistant concrete, the oil-resistant mortar is produced in large scale by factory premixing, and the product quality is uniform and stable.
The preparation method of the oil-resistant mortar comprises the following steps:
1) Guiding the cement and the quartz-quality graded sand into respective pre-homogenizing storehouses for pre-homogenizing by using guide-in equipment;
2) Continuously batching the materials according to the weight proportion under the control of a computer;
3) Stirring the prepared mixture in an HZ-20 type forced stirrer at a low speed for 3-5 minutes, and then stirring at a medium speed for 4-6 minutes;
4) Guiding the mixed dry powder into a finished product homogenizing warehouse;
5) Automatically packaging by electronic metering;
6) And warehousing the finished product.
Compared with the prior similar products and technologies, the oil-resistant mortar resists the penetration of various grease, has good construction performance, strong bonding force with a base layer, no hollowing and no cracking, and can be prepared into oil-resistant concrete by adding 20 to 30 percent of dry and compact 5 to 35 mm-grade stone.
Example three: the oil-resistant mortar comprises the following components in parts by weight: 300 parts of cement, 550 parts of quartz-grade mixed sand, 50 parts of compound compacting agent, 82 parts of S95 and above-grade slag micro powder, 10 parts of redispersible latex powder, 3 parts of high molecular polymer, 3 parts of early strength agent and 2 parts of thixotropic agent, wherein the cement is 42.5-grade superfine cement, and the quartz-grade mixed sand is artificial sand (fineness modulus) conforming to the closest packing principle<2.5 The composite compacting agent is obtained by compounding ferric hydroxide and an expansion component, the slag micro powder is S95 or above, and the redispersible latex powder is imported from Germany
5010, the high molecular polymer is hydroxypropyl methyl cellulose (HPMC), the early strength agent is calcium formate, and the thixotropic agent is a special thixotropic agent for imported 602 type dry-mixed mortar.
It should be noted that: the oil-resistant mortar adopts a compound compacting agent, has excellent performance of resisting the penetration of various grease, and adopts the German imported redispersible latex powder
5010 modifying, hardening the mortar to form a cross-linked structure of organic material and inorganic material, thereby being more compact and impervious, having high adhesive force with the base layer, excellent construction performance, no hollowing and no cracking, and being added with the oil-resistant mortar
Dried and compacted
The graded stones can be made into oil-resistant concrete, the oil-resistant mortar is produced in large scale by factory premixing, and the product quality is uniform and stable.
The preparation method of the oil-resistant mortar comprises the following steps:
1) Guiding the cement and the quartz-quality graded sand into respective pre-homogenizing storehouses for pre-homogenizing by using guide-in equipment;
2) Continuously batching the materials according to the weight proportion under the control of a computer;
3) Stirring the prepared mixture in an HZ-20 type forced stirrer at a low speed for 3-5 minutes, and then stirring at a medium speed for 4-6 minutes;
4) Leading the mixed dry powder into a finished product homogenizing warehouse;
5) Automatically packaging by electronic metering;
6) And warehousing the finished product.
Compared with the prior similar products and technologies, the oil-resistant mortar has the advantages of resistance to the penetration of various oils and fats, good construction performance, strong bonding force with a base layer, no hollowing and no cracking, and can be prepared into oil-resistant concrete by adding 20-30% of dry and compact 5-35 mm-grade stone.
Example four: the oil-resistant mortar comprises the following components in parts by weight: 290 parts of cement, 550 parts of quartz-grade mixed sand, 50 parts of compound compacting agent, 90 parts of S95 and above-grade slag micro powder, 12 parts of redispersible latex powder, 3 parts of high molecular polymer, 3 parts of early strength agent and 2 parts of thixotropic agent, wherein the cement is 42.5-grade superfine cement, and the quartz-grade mixed sand is artificial sand (fineness modulus) conforming to the closest packing principle<2.5 The composite compacting agent is obtained by compounding ferric hydroxide and an expansion component, the slag micro powder is S95 or above, and the redispersible latex powder is imported from Germany
5010, the high molecular polymer is hydroxypropyl methyl cellulose (HPMC), the early strength agent is calcium formate, and the thixotropic agent is a special thixotropic agent for imported 602 type dry-mixed mortar.
It should be noted that: the oil-resistant mortar adopts a compound compacting agent, has excellent performance of resisting the penetration of various grease, and adopts the German imported redispersible latex powder
5010 modification, and hardening the mortar to form a cross-linked structure of organic material and inorganic material, thereby making the mortar denser and more imperviousHigh adhesive force with the base layer, excellent construction performance, no hollowing and no cracking, and the oil-resistant mortar is added
Dry and compact
The graded stones can be made into oil-resistant concrete, the oil-resistant mortar is produced in large scale by factory premixing, and the product quality is uniform and stable.
The preparation method of the oil-resistant mortar comprises the following steps:
1) Guiding the cement and the quartz-quality graded sand into respective pre-homogenizing storehouses for pre-homogenizing by using guide-in equipment;
2) Continuously batching the materials according to the weight proportion under the control of a computer;
3) Stirring the prepared mixture in an HZ-20 type forced stirrer at a low speed for 3-5 minutes, and then stirring at a medium speed for 4-6 minutes;
4) Leading the mixed dry powder into a finished product homogenizing warehouse;
5) Automatically packaging by electronic metering;
6) And warehousing the finished product.
Compared with the prior similar products and technologies, the oil-resistant mortar has the advantages of resistance to the penetration of various oils and fats, good construction performance, strong bonding force with a base layer, no hollowing and no cracking, and can be prepared into oil-resistant concrete by adding 20-30% of dry and compact 5-35 mm-grade stone.
And (4) judging the standard:
results of preferred embodiment product testing Table 1
The invention has the beneficial effects that: 1. the oil-resistant seepage mortar and the preparation method thereof select superfine cement and slag micropowder as cementing materials, the total surface area of which is far larger than that of aggregate, researches and practices fully prove that the oil-resistant concrete can be prepared by the fact that the total surface area of the cementing materials is larger than that of the aggregate, the oil-resistant mortar is a foundation for preventing various grease from permeating, the slag micropowder has the functions of filling micro pores and capillaries, and a compound compacting agent is introduced, alunite [ potassium aluminum sulfate KAl (SO 4) 2] is introduced into the oil-resistant mortar and reacts with cement hydration products to form ettringite (C3 A.3CaSO 4.32H2O), the plastic mortar is subjected to the action of crystallization expansion stress, on one hand, shrinkage is compensated, cracks are eliminated, and the cement stones tend to be more compact, and the researches and practices prove that: the ferric hydroxide gel blocks the capillary pores of the hydration hardening body, and can prevent the penetration of various oils and fats; and various gels, such as calcium silicate hydrate gel (C-S-H), are added to further fill harmful pores with the pore diameter of more than 280 mu in concrete, so that the water tightness and the impermeability of the mortar are improved.
2. According to the oil-resistant seepage mortar and the preparation method thereof, through the addition of the redispersible latex powder, a continuous closed film (a so-called organic-inorganic cross-linked structure) is formed by a hardened mortar pore structure, so that the anti-erosion capacity of a mortar hydration hardened body is greatly enhanced, the binding force with base concrete is enhanced in multiples, the anti-erosion capacity and durability of the oil-resistant mortar are improved, the hydration hardening process of the oil-resistant mortar is accelerated by an early strength agent calcium formate, the oil-resistant mortar selects Dan Yingzhi graded sand as aggregate, the closest packing principle is met, the hydration hardened body is more compact, a thixotropic agent and a water-retaining thickening agent (HPMC) are adopted, the construction performance and the crack resistance of the oil-resistant mortar are greatly improved, industrial production is carried out under the control of an electronic computer, the proportioning is accurate and the quality is uniform.
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 (6)
1. The oil-resistant seepage mortar is characterized by comprising the following raw materials in parts by weight: 240-320 parts of cement, 550-650 parts of quartz graded sand, 30-70 parts of compound compacting agent, 70-130 parts of slag micro powder, 10-16 parts of redispersible latex powder, 1-3 parts of high molecular polymer, 1-5 parts of early strength agent and 1-3 parts of thixotropic agent.
2. The oil-resistant mortar according to claim 1, wherein the cement is 42.5-grade ultra-fine cement, and the fine slag powder is S95 or higher.
3. The oil-resistant mortar of claim 1, wherein the redispersible latex powder is imported from Germany
5010, the high molecular polymer is hydroxypropyl methylcellulose (HPMC).
4. The oil-resistant mortar of claim 1, wherein the early strength agent is calcium formate, and the thixotropic agent is a thixotropic agent special for imported 602 type dry mixed mortar.
5. The oil-resistant mortar of claim 1, wherein alunite [ potassium aluminum sulfate KAl (SO 4) 2] is introduced into the oil-resistant mortar, and reacts with cement hydration products to form ettringite (C3 A.3CaSO 4.32H 2O), and the plastic mortar is subject to crystal expansion stress.
6. The preparation method of the oil-resistant mortar is characterized by comprising the following steps:
1) Guiding cement and quartz graded sand into respective pre-homogenizing storehouses by using guide-in equipment for pre-homogenizing;
2) Continuously batching the materials according to the weight ratio under the control of a computer;
3) Stirring the prepared mixture in an HZ-20 type forced stirrer at a low speed for 3-5 minutes, and then stirring at a medium speed for 4-6 minutes;
4) Leading the mixed dry powder into a finished product homogenizing warehouse;
5) Automatically packaging by electronic metering;
6) And (6) warehousing the finished product.
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| CN105924050A (en) * | 2016-06-06 | 2016-09-07 | 北京中德新亚建筑技术有限公司 | Oil-proof mortar and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105924050A (en) * | 2016-06-06 | 2016-09-07 | 北京中德新亚建筑技术有限公司 | Oil-proof mortar and preparation method thereof |
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