CN112209679A - Production method of polymer bonding mortar by replacing natural river sand with ore sand - Google Patents
Production method of polymer bonding mortar by replacing natural river sand with ore sand Download PDFInfo
- Publication number
- CN112209679A CN112209679A CN202011076626.2A CN202011076626A CN112209679A CN 112209679 A CN112209679 A CN 112209679A CN 202011076626 A CN202011076626 A CN 202011076626A CN 112209679 A CN112209679 A CN 112209679A
- Authority
- CN
- China
- Prior art keywords
- stirring
- sand
- parts
- cement
- ore sand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- 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
Landscapes
- 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 discloses a method for producing polymer bonding mortar by using ore sand to replace natural river sand, which comprises the steps of selecting cement, ore sand, rubber powder, cellulose ether and stone powder as raw materials, selecting the dosage according to the mass part ratio of 390-450 parts of cement, 580-590 parts of ore sand, 20-25 parts of rubber powder, 2.5 parts of cellulose ether and 10 parts of stone powder, and mixing and stirring. The invention has the advantages of realizing comprehensive utilization of waste and avoiding natural environment damage caused by excessive exploitation of natural river sand.
Description
Technical Field
The invention relates to the technical field of polymer bonding mortar, in particular to a production method of polymer bonding mortar by replacing natural river sand with ore sand.
Background
With the great increase of the demand of economic development on mineral resources, hundreds of billions of tons of various tailings sands are accumulated in the large development of the mineral industry in China for decades, the tailings sands occupy a large amount of land (cultivated land), a large amount of tailings sands are discarded in the development process of the mineral resources, the tailings sands belong to industrial solid wastes, and the problem of environmental pollution caused by the tailings sands becomes one of the important problems facing the sustainable development in the world today. Therefore, the reasonable disposal of the tailing sand can reduce and control the disasters and pollution caused by the tailing sand, and is the most urgent task in the field of solid waste treatment and disposal in China. According to the current situation, the effective utilization of the ore sand is researched and explored, and the ore sand is successfully applied to special mortar to replace natural river sand.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the production method of the polymer bonding mortar, which realizes the comprehensive utilization of waste and avoids the natural environment damage caused by the excessive exploitation of natural river sand.
The technical scheme adopted by the invention for realizing the purpose is as follows: a method for producing polymer bonding mortar by replacing natural river sand with ore sand comprises the following steps:
s1, selecting cement, ore sand, rubber powder, cellulose ether and stone powder as raw materials;
s2, selecting the raw materials selected in the step S1 according to the following mass part ratios:
390-450 parts of cement;
580-590 parts of ore sand;
20-25 parts of rubber powder;
2.5 parts of cellulose ether;
10 parts of stone powder;
s3, putting the cement into a stirring device according to the dosage selected in the S2, and adding water for stirring;
s4, putting the ore sand into the stirring equipment according to the dosage selected in the S2, and adding water to continue stirring;
s5, adding the rubber powder and the cellulose ether into the stirring equipment according to the dosage selected in the step S2, adding water, and continuously stirring;
and S6, adding the stone powder into the stirring equipment according to the dosage selected in the S2, and adding water for continuous stirring.
The cement is one of ordinary portland cement or composite portland cement.
In the step S3, the stirring time of the stirring device is greater than 5min, and the stirring relative humidity is less than 50%.
In the step S4, the stirring time of the stirring equipment is more than 5min, and the stirring relative humidity is less than 40%.
In the step S5, the stirring time of the stirring device is greater than 7min, and the relative humidity is less than 30%.
In the step S6, the stirring time of the stirring equipment is more than 10min, and the relative humidity is less than 30%.
The invention has the beneficial effects that: the mortar produced by the invention successfully realizes the technical breakthrough of producing the polymer bonding mortar by replacing natural river sand with ore sand, avoids the damage of natural environment caused by excessive exploitation of the natural river sand while realizing the comprehensive utilization of waste, and completely accords with the national circular economy policy.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example one
The research principle is as follows: the main chemical components of the ore sand are as follows: silicon dioxide and iron, the iron mostly being present in the form of elemental iron; the main components of the river sand are silicon dioxide and a small amount of calcium, magnesium and aluminum, and the calcium, the magnesium and the aluminum exist in the form of silicate compounds, so the ore sand feels loose by touching with hands. Through experiments, the basic proportion of cement and ore sand is firstly researched and determined, the cement is a hydraulic cementing material, and the proportion of the cement to the ore sand must be controlled within a certain range to ensure the basic strength of the compound; furthermore, according to the research and analysis of various characteristics of the additive, the redispersible rubber powder in the ingredients has extremely outstanding bonding strength, improves the flexibility and the setting time of the mortar, and improves the adhesiveness, the breaking strength, the waterproofness, the plasticity, the wear resistance and the workability of the mortar, and the specific production method is as follows:
a method for producing polymer bonding mortar by replacing natural river sand with ore sand comprises the following steps:
s1, selecting cement, ore sand, rubber powder, cellulose ether and stone powder as raw materials;
s2, selecting the raw materials selected in the step S1 according to the following mass part ratios:
390-450 parts of cement;
580-590 parts of ore sand;
20-25 parts of rubber powder;
2.5 parts of cellulose ether;
10 parts of stone powder;
s3, putting the cement into a stirring device according to the dosage selected in the S2, and adding water for stirring;
s4, putting the ore sand into the stirring equipment according to the dosage selected in the S2, and adding water to continue stirring;
s5, adding the rubber powder and the cellulose ether into the stirring equipment according to the dosage selected in the step S2, adding water, and continuously stirring;
and S6, adding the stone powder into the stirring equipment according to the dosage selected in the S2, and adding water for continuous stirring.
The cement is one of ordinary portland cement or composite portland cement.
In the step S3, the stirring time of the stirring device is greater than 5min, and the stirring relative humidity is less than 50%.
In the step S4, the stirring time of the stirring equipment is more than 5min, and the stirring relative humidity is less than 40%.
In the step S5, the stirring time of the stirring device is greater than 7min, and the relative humidity is less than 30%.
In the step S6, the stirring time of the stirring equipment is more than 10min, and the relative humidity is less than 30%.
Example two
A method for producing polymer bonding mortar by replacing natural river sand with ore sand comprises the following steps:
s1, selecting cement, ore sand, rubber powder, cellulose ether and stone powder as raw materials;
s2, selecting the raw materials selected in the step S2 according to the following mass part ratios:
390 parts of cement;
580 parts of ore sand;
20 parts of rubber powder;
2.5 parts of cellulose ether;
10 parts of stone powder;
s3, putting the cement into a stirring device according to the dosage selected in the S2, adding water, stirring for 10min, and controlling the relative humidity below 50%;
s4, putting the ore sand into the stirring equipment according to the dosage selected in the S2, adding water, continuously stirring for 10min, and controlling the relative humidity below 40%;
s5, adding the rubber powder and the cellulose ether into the stirring equipment according to the dosage selected in the step S2, adding water, and continuously stirring for 15min, wherein the relative humidity is controlled to be below 30%;
and S6, adding the stone powder into the stirring equipment according to the dosage selected in the S2, adding water, and continuously stirring for 30min, wherein the relative humidity is controlled to be below 30%.
EXAMPLE III
A method for producing polymer bonding mortar by replacing natural river sand with ore sand comprises the following steps:
s1, selecting cement, ore sand, rubber powder, cellulose ether and stone powder as raw materials;
s2, selecting the raw materials selected in the step S2 according to the following mass part ratios:
450 parts of cement;
590 parts of ore sand;
25 parts of rubber powder;
2.5 parts of cellulose ether;
10 parts of stone powder;
s3, putting the cement into a stirring device according to the dosage selected in the S2, adding water, stirring for 10min, and controlling the relative humidity below 50%;
s4, putting the ore sand into the stirring equipment according to the dosage selected in the S2, adding water, continuously stirring for 10min, and controlling the relative humidity below 40%;
s5, adding the rubber powder and the cellulose ether into the stirring equipment according to the dosage selected in the step S2, adding water, and continuously stirring for 20min, wherein the relative humidity is controlled to be below 30%;
and S6, adding the stone powder into the stirring equipment according to the dosage selected in the S2, adding water, and continuously stirring for 30min, wherein the relative humidity is controlled to be below 30%.
Example four
The polymer mortars prepared in example two and example three were examined for setting time, compressive strength, flexural strength, flexibility, adhesive strength, and alkali resistance, heat resistance, and freezing resistance.
And (3) a checking step:
s1, batching:
adding water into a cement mixer by using a planetary cement mixer, then slowly adding the polymer bonding mortar prepared in the second embodiment/the third embodiment into the water, and stirring the mixture, wherein the stirring is carried out at a low speed or manually according to the requirements of DL/T5126-2001;
s2, condensation time test
Mixing according to S1, carrying out experiments according to GB/T1346-2001, and replacing cement in the standard with the tested polymer mortar;
s3 testing compressive strength and flexural strength
S3-1, mixing materials according to S1, filling the prepared mortar into a test mold, carrying out moisture curing, and then demolding;
s3-2, carrying out dry maintenance on the demoulded test piece to reach the age of 28 d;
s3-3, according to GB/T17671-1999;
s4 flexibility test
Batching according to S1, and checking according to JC/T1004-2006 appendix B;
s5, bond Strength test
S5-1, preparing materials according to S1, forming according to 5.4 in JC/T907-;
s5-2, continuously carrying out dry maintenance to the age of 7d after demolding;
s5-3, according to JC/T907-2002, 5.4.3;
s6 alkali resistance test
S6-1, preparing a sample according to S5-1;
s6-2, coating the prepared sample on a cement mortar block, wherein the thickness of the coating is 5.0-6.0mm, carrying out dry curing on the sample to 7d, and placing the sample in saturated Ca (OH) specified in GB/T16777-2Soaking in the solution for 168h, taking out the test piece, and observing whether cracking and peeling exist;
s7 test for Heat resistance
S7-1, preparing a sample according to S5-1;
s7-2, blade-coating the prepared sample on a cement mortar block, wherein the thickness of the coating is 5.0-6.0mm, carrying out dry maintenance on the sample for 7d, boiling the sample in a boiling box for 5h, and then taking out the sample to observe whether cracking and peeling exist;
s8, freezing resistance
S8-1, preparing a sample according to S5-1;
s8-2, blade-coating the prepared sample on a cement mortar block, wherein the thickness of the coating is 5.0-6.0mm, carrying out dry maintenance on the sample to 7d, then carrying out inspection according to the fourth chapter of GB/T50082 plus material 2009, carrying out air freezing for 4h at-15 ℃, carrying out water melting for 4h, carrying out freeze-thaw cycling for 25 times, and then taking out the sample to observe whether cracking and peeling exist.
Finally, the test tables of the second embodiment and the third embodiment are obtained:
in conclusion, the appropriate proportion is determined through experimental exploration, the qualified mortar is produced, the technical breakthrough of producing the polymer bonding mortar by replacing natural river sand with ore sand is successfully realized, the waste is comprehensively utilized, meanwhile, the damage of the natural environment caused by excessive exploitation of the natural river sand is avoided, and the technology completely accords with the national circular economy administration.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A production method of polymer bonding mortar by using ore sand to replace natural river sand is characterized in that: the method comprises the following steps:
s1, selecting cement, ore sand, rubber powder, cellulose ether and stone powder as raw materials;
s2, selecting the raw materials selected in the step S1 according to the following mass part ratios:
390-450 parts of cement;
580-590 parts of ore sand;
20-25 parts of rubber powder;
2.5 parts of cellulose ether;
10 parts of stone powder;
s3, putting the cement into a stirring device according to the dosage selected in the S2, and adding water for stirring;
s4, putting the ore sand into the stirring equipment according to the dosage selected in the S2, and adding water to continue stirring;
s5, adding the rubber powder and the cellulose ether into the stirring equipment according to the dosage selected in the step S2, adding water, and continuously stirring;
and S6, adding the stone powder into the stirring equipment according to the dosage selected in the S2, and adding water for continuous stirring.
2. The method for producing a polymer bonding mortar using ore sand instead of natural river sand according to claim 1, wherein: the cement is one of ordinary portland cement or composite portland cement.
3. The method for producing a polymer bonding mortar using ore sand instead of natural river sand according to claim 1, wherein: in the step S3, the stirring time of the stirring device is greater than 5min, and the stirring relative humidity is less than 50%.
4. The method for producing a polymer bonding mortar using ore sand instead of natural river sand according to claim 1, wherein: in the step S4, the stirring time of the stirring equipment is more than 5min, and the stirring relative humidity is less than 40%.
5. The method for producing a polymer bonding mortar using ore sand instead of natural river sand according to claim 1, wherein: in the step S5, the stirring time of the stirring device is greater than 7min, and the relative humidity is less than 30%.
6. The method for producing a polymer bonding mortar using ore sand instead of natural river sand according to claim 1, wherein: in the step S6, the stirring time of the stirring equipment is more than 10min, and the relative humidity is less than 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076626.2A CN112209679A (en) | 2020-10-10 | 2020-10-10 | Production method of polymer bonding mortar by replacing natural river sand with ore sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076626.2A CN112209679A (en) | 2020-10-10 | 2020-10-10 | Production method of polymer bonding mortar by replacing natural river sand with ore sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112209679A true CN112209679A (en) | 2021-01-12 |
Family
ID=74052948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011076626.2A Pending CN112209679A (en) | 2020-10-10 | 2020-10-10 | Production method of polymer bonding mortar by replacing natural river sand with ore sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112209679A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111410484A (en) * | 2020-04-13 | 2020-07-14 | 山东黄金产业发展集团有限公司 | Bonding mortar composed of gold tailings sand and preparation method thereof |
| CN111439972A (en) * | 2020-05-07 | 2020-07-24 | 山东黄金产业发展集团有限公司 | Plastering mortar formed on basis of gold tailing sand |
| CN111484294A (en) * | 2020-05-07 | 2020-08-04 | 山东黄金产业发展集团有限公司 | Ceramic tile bonding mortar formed based on gold tailing sand |
| AU2020103960A4 (en) * | 2020-12-08 | 2021-04-15 | Nanjing Tech University | Sand-free desulfurization gypsum self-leveling mortar and preparation method thereof |
-
2020
- 2020-10-10 CN CN202011076626.2A patent/CN112209679A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111410484A (en) * | 2020-04-13 | 2020-07-14 | 山东黄金产业发展集团有限公司 | Bonding mortar composed of gold tailings sand and preparation method thereof |
| CN111439972A (en) * | 2020-05-07 | 2020-07-24 | 山东黄金产业发展集团有限公司 | Plastering mortar formed on basis of gold tailing sand |
| CN111484294A (en) * | 2020-05-07 | 2020-08-04 | 山东黄金产业发展集团有限公司 | Ceramic tile bonding mortar formed based on gold tailing sand |
| AU2020103960A4 (en) * | 2020-12-08 | 2021-04-15 | Nanjing Tech University | Sand-free desulfurization gypsum self-leveling mortar and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Hydration characteristics and environmental friendly performance of a cementitious material composed of calcium silicate slag | |
| Zheng et al. | Influences of phosphate tailings on hydration and properties of Portland cement | |
| CN111268990B (en) | Basalt fiber reinforced phosphogypsum-based composite material and preparation method thereof | |
| Jin et al. | Preparation of eco-friendly lightweight gypsum: Use of beta-hemihydrate phosphogypsum and expanded polystyrene particles | |
| Wang et al. | Properties and hydration characteristics of mine cemented paste backfill material containing secondary smelting water-granulated nickel slag | |
| CN111233360A (en) | Method for preparing geopolymer-based recycled aggregate from micro-fine particle copper tailings | |
| CN103232210A (en) | Ore dressing residue autoclaved aerated concrete block and preparation method thereof | |
| CN112851185B (en) | Retarder for adjusting initial setting time of sulphoaluminate cement and preparation method and use method thereof | |
| CN104478386A (en) | Mix-enhanced binding gypsum and preparation method thereof | |
| Zhang et al. | Research on the pretreatment and mechanical performance of undisturbed phosphogypsum | |
| CN115159944A (en) | Industrial solid waste soft clay curing agent and resource utilization method thereof | |
| Niu et al. | Synergistic excitation mechanism of CaO-SiO2-Al2O3-SO3 quaternary active cementitious system | |
| Jiang et al. | Analysis of micro-morphology and heat-insulating property of leaf concrete | |
| Xue et al. | Mechanical properties and drying shrinkage of graphite tailing-basalt fiber cement mortar | |
| CN112209679A (en) | Production method of polymer bonding mortar by replacing natural river sand with ore sand | |
| Dong et al. | Investigation into the alkali-activation of lithium slag: A sustainable alternative to conventional cement with optimized mechanical properties | |
| Yang et al. | Study on hydration characteristics and mechanism of recycled powder-cement binary and multivariate systems | |
| CN102786263B (en) | Permeable crystalline type concentrating agent prepared from construction waste micro-powder and method thereof | |
| Chen et al. | The impact of the use of new environmentally friendly materials on the management of construction projects: taking straw fiber materials as an example | |
| Liu et al. | Water resistance of flue gas desulphurization gypsum-fly ash-steel slag composites | |
| Yang et al. | Effect of carbide slag and steel slag as alkali activators on the key properties of carbide slag-steel slag-slag-phosphogypsum composite cementitious materials | |
| CN104761232A (en) | Preparation of ductility cement product by utilizing lead zinc tail mineral powder | |
| Zhou et al. | Durability and hardened properties of 3D printed concrete containing bauxite tailings | |
| CN109626869A (en) | A kind of formula of mineral composite | |
| Zhang et al. | Physical properties and hydration of cementitious materials prepared from vanadium slag and phosphate slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210112 |