CN111410484A - Bonding mortar composed of gold tailings sand and preparation method thereof - Google Patents
Bonding mortar composed of gold tailings sand and preparation method thereof Download PDFInfo
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- CN111410484A CN111410484A CN202010284668.9A CN202010284668A CN111410484A CN 111410484 A CN111410484 A CN 111410484A CN 202010284668 A CN202010284668 A CN 202010284668A CN 111410484 A CN111410484 A CN 111410484A
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- dry powder
- bonding mortar
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Classifications
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
-
- 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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a bonding mortar dry powder composed of gold tailings, which comprises the following components in parts by weight: 450-550 parts of gold tailing sand, 350-450 parts of 425 ordinary cement, 80-120 parts of heavy calcium carbonate powder, 15-25 parts of redispersible latex powder and 2.5-3.5 parts of cellulose. The preparation method comprises the following steps: a) weighing, namely weighing the components in the dry powder of the bonding mortar according to the proportion; b) stirring, and fully stirring for 3-5 min; c) sealing and storing. The bonding mortar formed by the gold tailings and the preparation method thereof can form the bonding mortar with the mechanical property and the chemical property meeting the requirements, provide an effective method for the secondary utilization of the gold tailings, solve the problems of environmental pollution and resource waste caused by backfilling or stacking the gold tailings in the prior art, realize the full utilization of the gold tailings, can change waste into valuable, have remarkable beneficial effects, and are suitable for application and popularization.
Description
Technical Field
The invention relates to bonding mortar and a preparation method thereof, in particular to bonding mortar consisting of gold tailings and a preparation method thereof.
Background
The adhesive mortar is formed by mixing cement, quartz sand, a cementing material and a plurality of additives, and is mainly used as an adhesive of an insulation board. The bonding mortar has strong bonding property, water resistance, freeze-thaw resistance, aging resistance, impact resistance and anti-cracking property. The gold tailings are fine-particle slags formed in the process of mining gold deposits, gold-containing ores can form fine-particle slags after being crushed, ground and sorted, main components of the slags are silicon dioxide SiO2, aluminum oxide Al2O3, sodium oxide Na2O and iron-containing and titanium-containing minerals, the components of the slags are similar to those of quartz sand, and the gold tailings have the components forming binding mortar from the aspects of component composition and physical and chemical properties.
At present, the gold tailings are treated by mainly adopting a backfilling and stacking treatment mode, after the gold mine is mined, the backfilling treatment of fine particle ore formed by crushing and grinding is undoubtedly waste, if the gold tailings are stacked, the environment is polluted, how to change waste into valuable is realized, the gold tailings formed by high energy consumption and high time consumption are utilized, and undoubtedly, the gold tailings can be a sustainable development mode.
Disclosure of Invention
The invention provides bonding mortar consisting of gold tailings sand and a preparation method thereof in order to overcome the defects of the technical problems.
The invention relates to a bonding mortar dry powder composed of gold tailings, which is characterized by comprising the following components in parts by weight: 450-550 parts of gold tailing sand, 350-450 parts of 425 ordinary cement, 80-120 parts of heavy calcium carbonate powder, 15-25 parts of redispersible latex powder and 2.5-3.5 parts of cellulose.
The invention relates to a bonding mortar dry powder composed of gold tailings, which comprises the following components in parts by weight: 500 parts of gold tailing sand, 400 parts of 425 ordinary silica cement, 100 parts of heavy calcium carbonate powder, 20 parts of redispersible latex powder and 3 parts of cellulose.
The invention relates to a bonding mortar dry powder composed of gold tailings, which comprises the following components in parts by weight: 470 parts of gold tailings sand, 370 parts of 425 ordinary silica cement, 90 parts of heavy calcium carbonate powder, 17 parts of redispersible latex powder and 2.7 parts of cellulose.
The invention relates to a bonding mortar dry powder composed of gold tailings, which comprises the following components in parts by weight: 530 parts of gold tailing sand, 430 parts of 425 ordinary silica cement, 110 parts of heavy calcium carbonate powder, 23 parts of redispersible latex powder and 3.3 parts of cellulose.
The particle size of the bonding mortar dry powder formed by the gold tailing sand is 40-60 meshes.
The preparation method of the bonding mortar dry powder consisting of the gold tailings is characterized by comprising the following steps:
a) weighing, namely weighing the gold tailing sand, 425 ordinary silica cement, heavy calcium powder and redispersible latex powder according to the proportion of each component in the dry powder of the bonding mortar for later use;
b) stirring, pouring each component in the bonding mortar dry powder into a stirring instrument, and fully stirring for 3-5 min to uniformly mix the components;
c) sealing, and sealing and storing the bonding mortar dry powder formed after stirring for later use.
The wet mortar formed by the dry powder of the bonding mortar consisting of the gold tailings sand of the invention has the weight ratio of the dry powder of the bonding mortar to water of 100 percent: 25-30%.
The invention relates to a preparation method of wet mortar formed by bonding mortar dry powder consisting of gold tailing sand, which comprises the following steps:
1) weighing materials, firstly calculating the required dry powder consumption of the bonding mortar according to the consumption of the bonding mortar, and then calculating the water consumption according to the weight ratio of the dry powder of the bonding mortar to the water;
2) mixing and stirring, pouring the bonding mortar dry powder and water into a stirring machine, and fully stirring to form wet mortar.
The invention has the beneficial effects that: the invention relates to a bonding mortar composed of gold tailings and a preparation method thereof, wherein the gold tailings of 40-60 meshes are mixed with ordinary silica cement, heavy calcium powder, redispersible emulsion powder and cellulose, the cement can firmly bond the materials such as the gold tailings and the heavy calcium powder together by utilizing the excellent mechanical property of the heavy calcium powder, the improvement of the redispersible emulsion powder on the flexibility of the mortar, the wrapping of the cellulose on the mortar and the adsorption action on water molecules, so that the formed bonding mortar meets the requirements on the bonding strength and the tensile bonding strength, the bonding mortar with the mechanical property and the chemical property meeting the requirements can be formed, an effective method is provided for the secondary utilization of the gold tailings, the problems of environmental pollution and resource waste caused by the existing backfilling or stacking of the gold tailings are solved, and the full utilization of the gold tailings is realized, can change waste into valuable, has obvious beneficial effect and is suitable for application and popularization.
Detailed Description
Example 1, the following components were weighed out in terms of the amount of the bonding mortar: 500kg of gold tailing sand, 400kg of 425 ordinary silica cement, 100 kg of heavy calcium carbonate powder, 20kg of redispersible latex powder and 3kg of cellulose. And (3) putting the weighed components into a stirring device, fully stirring for 3-5 min to uniformly mix the components to form bonding mortar dry powder, and finally sealing and storing the bonding mortar dry powder formed after stirring so as to be convenient for transportation and long-time quality guarantee.
Among them, the cement No. 425, which belongs to hard cement, is mainly used for mixing earth, such as paving roads, covering houses and the like. The heavy calcium powder is heavy calcium carbonate, which is prepared by processing high-quality limestone into white powder by a lime mill, and the main component of the white powder is CaCO 3; the heavy calcium carbonate has the characteristics of high whiteness, good purity, soft hue, stable chemical components and the like, and the content of the calcium carbonate in the heavy calcium carbonate powder is not lower than 98 percent in the technical scheme of the application.
The redispersible latex powder can improve the flexibility of mortar and has longer open time, and is used for improving the adhesiveness, the adhesion, the breaking strength, the waterproofness, the plasticity, the wear resistance and the like of the mortar, and ethylene/vinyl acetate copolymer, vinyl acetate/versatic acid ethylene copolymer and acrylic acid copolymer are common redispersible latex powder.
Cellulose is a macromolecular polysaccharide consisting of glucose. After the cellulose is hydrolyzed in the mortar, the cellulose is used as a protective colloid, so that the solid particles can be wrapped, and a layer of lubricating film is formed on the outer surface of the cellulose, so that a mortar system is more stable, and the fluidity of the mortar in the stirring process and the smoothness of construction are improved. Meanwhile, the moisture in the cellulose ether mortar is not easy to lose, and the formed mortar has good water retention.
To demonstrate that the bonding mortar dry powder formed according to the formulation in example 1 meets the performance requirements, the prepared gypsum-based self-leveling mortar dry powder was sent to a department with quality testing (Shandong-Hefu engineering testing Co., Ltd.) for testing, and the obtained test results are shown in Table 1:
TABLE 1
It can be seen that the dry powder of the bonding mortar formed by the gold tailings sand, 425 ordinary silica cement, heavy calcium powder, redispersible latex powder and cellulose according to the proportion in the embodiment 1 meets the standard requirements in appearance, bonding strength, operable time, tensile bonding strength between the dry powder and cement mortar and bonding strength of a pull rope between the dry powder and an expanded polystyrene board, and the formed dry powder of the bonding mortar is qualified and can be used as the bonding mortar in the building industry.
Example 2, the following components were weighed out in terms of the amount of the bonding mortar: 470kg of gold tailings sand, 370kg of 425 ordinary silica cement, 90kg of heavy calcium carbonate powder, 17kg of redispersible latex powder and 2.7kg of cellulose. And (3) putting the weighed components into a stirring device, fully stirring for 3-5 min to uniformly mix the components to form bonding mortar dry powder, and finally sealing and storing the bonding mortar dry powder formed after stirring so as to be convenient for transportation and long-time quality guarantee.
To demonstrate that the bonding mortar dry powder formed according to the formulation in example 2 meets the performance requirements, the prepared gypsum-based self-leveling mortar dry powder was sent to a department with quality testing (Shandong-Hefu engineering testing Co., Ltd.) for testing, and the obtained test results are shown in Table 2:
TABLE 2
It can be seen that the dry powder of the bonding mortar formed by the gold tailings sand, 425 ordinary silica cement, heavy calcium powder, redispersible latex powder and cellulose according to the proportion in the embodiment 2 meets the standard requirements in appearance, bonding strength, operable time, tensile bonding strength between the dry powder and cement mortar and bonding strength of a pull rope between the dry powder and an expanded polystyrene board, and the formed dry powder of the bonding mortar is qualified and can be used as the bonding mortar in the building industry.
Example 3, the following components were weighed out in terms of the amount of the bonding mortar: 530kg of gold tailing sand, 430kg of 425 ordinary silica cement, 110kg of heavy calcium carbonate powder, 23kg of redispersible emulsion powder and 3.3kg of cellulose. And (3) putting the weighed components into a stirring device, fully stirring for 3-5 min to uniformly mix the components to form bonding mortar dry powder, and finally sealing and storing the bonding mortar dry powder formed after stirring so as to be convenient for transportation and long-time quality guarantee.
To demonstrate that the bonding mortar dry powder formed according to the formulation in example 3 meets the performance requirements, the prepared gypsum-based self-leveling mortar dry powder was sent to a department with quality testing (Shandong-Hefu engineering testing Co., Ltd.) for testing, and the obtained test results are shown in Table 3:
TABLE 3
It can be seen that the dry powder of the bonding mortar formed by the gold tailings sand, 425 ordinary silica cement, heavy calcium powder, redispersible latex powder and cellulose according to the proportion in the embodiment 3 meets the standard requirements in appearance, bonding strength, operable time, tensile bonding strength between the dry powder and cement mortar and bonding strength of a pull rope between the dry powder and an expanded polystyrene board, and the formed dry powder of the bonding mortar is qualified and can be used as the bonding mortar in the building industry.
The wet mortar prepared from the bonding mortar dry powder comprises the following components in percentage by weight: the weight ratio of the dry powder of the bonding mortar to the water is 100%: 25-30%.
The preparation method of the wet mortar prepared by using the bonding mortar dry powder comprises the following steps:
1) weighing materials, firstly calculating the required dry powder consumption of the bonding mortar according to the consumption of the bonding mortar, and then calculating the water consumption according to the weight ratio of the dry powder of the bonding mortar to the water;
2) mixing and stirring, pouring the bonding mortar dry powder and water into a stirring machine, and fully stirring to form wet mortar.
Claims (8)
1. The bonding mortar dry powder formed by the gold tailings is characterized by comprising the following components in parts by weight: 450-550 parts of gold tailing sand, 350-450 parts of 425 ordinary cement, 80-120 parts of heavy calcium carbonate powder, 15-25 parts of redispersible latex powder and 2.5-3.5 parts of cellulose.
2. The bonding mortar dry powder consisting of gold tailings according to claim 1, wherein: the weight parts of each component are respectively as follows: 500 parts of gold tailing sand, 400 parts of 425 ordinary silica cement, 100 parts of heavy calcium carbonate powder, 20 parts of redispersible latex powder and 3 parts of cellulose.
3. The bonding mortar dry powder consisting of gold tailings according to claim 1, wherein: the weight parts of each component are respectively as follows: 470 parts of gold tailings sand, 370 parts of 425 ordinary silica cement, 90 parts of heavy calcium carbonate powder, 17 parts of redispersible latex powder and 2.7 parts of cellulose.
4. The bonding mortar dry powder consisting of gold tailings according to claim 1, wherein: the weight parts of each component are respectively as follows: 530 parts of gold tailing sand, 430 parts of 425 ordinary silica cement, 110 parts of heavy calcium carbonate powder, 23 parts of redispersible latex powder and 3.3 parts of cellulose.
5. The bonding mortar dry powder consisting of gold tailings according to claim 1, wherein: the particle size of the gold tailing sand is 40-60 meshes.
6. The preparation method of the bonding mortar dry powder formed by the gold tailings sand of claim 1 is characterized by comprising the following steps:
a) weighing, namely weighing the gold tailing sand, 425 ordinary silica cement, heavy calcium powder and redispersible latex powder according to the proportion of each component in the dry powder of the bonding mortar for later use;
b) stirring, pouring each component in the bonding mortar dry powder into a stirring instrument, and fully stirring for 3-5 min to uniformly mix the components;
c) sealing, and sealing and storing the bonding mortar dry powder formed after stirring for later use.
7. A wet mortar formed from a cementitious mortar dry powder of gold tailings sand as defined in claim 1, wherein: the weight ratio of the dry powder of the bonding mortar to water is 100%: 25-30%.
8. A wet mortar formed from a cementitious mortar dry powder comprised of gold tailings sand as claimed in claim 7, characterised in that the wet mortar formed is prepared by:
1) weighing materials, firstly calculating the required dry powder consumption of the bonding mortar according to the consumption of the bonding mortar, and then calculating the water consumption according to the weight ratio of the dry powder of the bonding mortar to the water;
2) mixing and stirring, pouring the bonding mortar dry powder and water into a stirring machine, and fully stirring to form wet mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010284668.9A CN111410484A (en) | 2020-04-13 | 2020-04-13 | Bonding mortar composed of gold tailings sand and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010284668.9A CN111410484A (en) | 2020-04-13 | 2020-04-13 | Bonding mortar composed of gold tailings sand and preparation method thereof |
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| CN111410484A true CN111410484A (en) | 2020-07-14 |
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| CN202010284668.9A Pending CN111410484A (en) | 2020-04-13 | 2020-04-13 | Bonding mortar composed of gold tailings sand and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112159166A (en) * | 2020-08-31 | 2021-01-01 | 陕西宏城矿业有限公司 | Building mortar with gold mine tailings as full aggregates and preparation method thereof |
| CN112209679A (en) * | 2020-10-10 | 2021-01-12 | 山西大地华基建材科技有限公司 | Production method of polymer bonding mortar by replacing natural river sand with ore sand |
| CN115745534A (en) * | 2022-11-28 | 2023-03-07 | 山东大学 | Method for preparing rapid repair mortar from solid waste based sulphoaluminate cementing material |
-
2020
- 2020-04-13 CN CN202010284668.9A patent/CN111410484A/en active Pending
Non-Patent Citations (2)
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| 王丹: "聚苯板外墙外保温***用聚合物砂浆的配制与性能研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 赵俊梅等: "利用金矿尾矿制备干混砂浆的正交试验", 《现代矿业》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112159166A (en) * | 2020-08-31 | 2021-01-01 | 陕西宏城矿业有限公司 | Building mortar with gold mine tailings as full aggregates and preparation method thereof |
| CN112209679A (en) * | 2020-10-10 | 2021-01-12 | 山西大地华基建材科技有限公司 | Production method of polymer bonding mortar by replacing natural river sand with ore sand |
| CN115745534A (en) * | 2022-11-28 | 2023-03-07 | 山东大学 | Method for preparing rapid repair mortar from solid waste based sulphoaluminate cementing material |
| CN115745534B (en) * | 2022-11-28 | 2024-03-22 | 山东大学 | Method for preparing quick repair mortar from solid waste-based sulphoaluminate cementing material |
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Application publication date: 20200714 |