CN112408840A - Curing agent for building slurry and application method thereof - Google Patents
Curing agent for building slurry and application method thereof Download PDFInfo
- Publication number
- CN112408840A CN112408840A CN202011341685.8A CN202011341685A CN112408840A CN 112408840 A CN112408840 A CN 112408840A CN 202011341685 A CN202011341685 A CN 202011341685A CN 112408840 A CN112408840 A CN 112408840A
- Authority
- CN
- China
- Prior art keywords
- curing agent
- percent
- construction
- slurry
- mass
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a curing agent for building slurry and an application method thereof, wherein the curing agent comprises the following components in percentage by mass: 10 to 25 percent of cement clinker; 10 to 30 percent of ceramic powder; 15 to 25 percent of gypsum; 40 to 65 percent of mineral powder; 1-3% of a surfactant; 2-6% of high water-absorbent resin; the sum of the mass percentages of the components is 100 percent. The curing agent and the building slurry are stirred and mixed uniformly according to a proportion, and the mixture is subjected to natural dehydration, molding and curing, so that the curing agent has the advantages of low cost and good consolidation effect, and can be used for landfill and re-tillage on site or as building materials; meanwhile, various raw materials of the curing agent mainly comprise solid wastes, so that the purpose of preparing wastes from wastes is achieved, and great economic and environmental benefits are achieved.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a curing agent for building slurry and an application method thereof.
Background
The building slurry is a waste produced by artificial configuration due to drilling or construction in urban construction, and is a mixture of suspension and colloidal solution mainly composed of clay, sewage, sump oil, drill cuttings and slurry treatment agent, which can pollute the environment and bring negative effects to construction. The concrete expression is as follows: waste mud generated by engineering construction is difficult to degrade in a natural state, so that soil hardening, land salinization and great damage to vegetation in peripheral areas are caused; the waste mud is accumulated for a long time and permeates into a water layer under the ground surface or flows into rivers and creeks along with the overflow of rainwater to pollute water sources, so that the harm to the health of animals, plants and human beings is directly or indirectly caused, if the waste mud is transported as miscellaneous soil, the secondary pollution is caused, and the waste mud is generally transported to places allowed by an environmental protection department outside a sealed tank and abandoned.
With the rapid construction of urbanization, construction slurry generated by construction is increasing greatly, and slurry treatment has become a problem of social concern. The traditional method comprises the steps of treating through methods such as gravity precipitation, physical screening and chemical flocculation, separating sand and soil in slurry from water, transporting the sand and soil out, and discharging the water into an urban pipe network; or dewatering, reducing and filter-pressing the building slurry into building mud cakes to prepare sintered bricks and the like, and researching and developing various sets of process technologies and devices; however, the construction slurry treatment technology has the following defects: the mud treatment cost is high, for example, the mud treatment cost of some coastal cities is different from dozens to two hundred yuan per party; secondly, the treated slurry is difficult to realize effective utilization, so that the waste of soil resources is caused; thirdly, a large amount of energy is consumed and the cost is relatively high when the building slurry is used for preparing the sintered bricks. The construction slurry is usually treated by a curing agent at the present stage, and the purpose of curing the waste slurry is to prevent the waste slurry from polluting the surrounding environment, and simultaneously change the slurry (or paste) state of the waste slurry into a solid state, so that the waste slurry is converted into a solid like soil or is cemented into a solid with higher strength, and is used for landfill and replanting on the spot or used as a construction material. At present, cement, lime and the like are generally adopted as curing agents, but common cement and lime are slow to set and harden, so that the common cement and lime partially settle before being set under the condition of high-water curing, and building slurry generally contains more organic substances which can block the hydration reaction of the cement, so that the cement cannot effectively bond cohesive soil, and the curing effect of the cement slurry is often poor or even impossible. When lime is used for curing, the curing strength is lower.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a curing agent for construction slurry, which has the advantages of low cost and good curing effect and can be used for landfill and secondary tillage on site or as a construction material. Meanwhile, various raw materials of the curing agent mainly comprise solid wastes, so that the purpose of preparing wastes from wastes is achieved, and great economic and environmental benefits are achieved.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a curing agent for building mud comprises the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent.
Preferably, the curing agent comprises the following components in parts by mass:
the sum of the mass percentages of the components is 100 percent.
Preferably, the ceramic powder is formed by crushing and grinding defective ceramic or waste ceramic and mainly contains SiO2And Al2O3The mass percentage content is more than 85 percent. The ceramic powder can be combined with inorganic mineral material in curing agent, and when it is in powder form and in the presence of water, it is SiO2And Al2O3From Ca (OH) in waste sludge during hydration2The alkaline excitation of the alkali generates C-S-H gel and hydrated calcium aluminate substances, and the hydrated calcium aluminate substances are excited by sulfate such as barite powder in the waste drilling mud to generate monosulfurThe calcium sulphoaluminate product is hydrated, so that the gelling component and the hardening quality of the waste slurry are improved.
Preferably, the gypsum is power plant desulfurization waste gypsum, wherein sulfur trioxide in the sulfur waste gypsum is more than 42%, and the water content is less than 10%. The gypsum can be combined with a surfactant in a curing agent to perform chemical reaction with other metal hydroxides in mineral powder and slurry under the conditions of normal temperature, hydrothermal treatment or steam curing to generate a compound with hydraulic gelation performance, and the gypsum can be a material with increased strength and durability. The industrial waste gypsum is fully utilized, energy is saved, and the environment is protected, so that the prepared high-molecular slurry curing agent not only has high strength and good ductility, but also has low manufacturing cost.
Preferably, the mineral powder is obtained by drying and grinding water-quenched blast furnace slag and mainly contains SiO2、Al2O3And CaO, the mass percentage content of which is more than 30 percent. The combination of the powdery form and the ceramic powder in the curing agent converts part of free water in the slurry into crystal water, the generated crystal hydrate does not destroy mineral gelled substances, soil particles are gelled into a structural framework through a CAH system and a CSH system, and the cement hydration heat during the curing of cement clinker is also obviously reduced.
Preferably, the surfactant is Na2CO3、Na2SiO3·9H2O、NaOH、Na2SO4、NaNO3A mixture of one or more of them. The surfactant has good emulsifying, wetting, dispersing and dissolving-assisting performances, and is combined with desulfurized waste gypsum or other metal hydroxides in the curing agent to perform chemical reaction to generate a compound with a hydraulic gelling performance, so that the compound can be a material with increased strength and durability.
Preferably, the super absorbent resin is HS series super absorbent resin with high water absorption and high water retention. The super absorbent resin is combined with the powder material in the curing agent, and the powder material has higher strength due to larger surface area, high water absorption speed and large water absorption capacity.
The invention also provides an application method of the curing agent, which comprises the following steps:
(1) mixing cement clinker, ceramic powder, gypsum and mineral powder according to a set proportion, and carrying out ball milling and stirring for 60-80min to obtain a mixture A; then mixing the mixture A with a surfactant and super absorbent resin, and carrying out ball milling and stirring for 20-30min to obtain a curing agent;
(2) according to the mass ratio of the building slurry to the curing agent of 91-95: 5-9 percent of curing agent, stirring and mixing uniformly, and naturally dehydrating, forming and maintaining.
Preferably, the concentration of the building slurry is 150-220 g/L, the water content is 155-185%, and the sand content is 5-10%.
Preferably, the forming adopts a normal-temperature compression forming method, and the maintenance adopts a normal-temperature natural moisturizing maintenance method.
The working principle of the invention is as follows:
the connection between the mud and the basic unit body of the soil determines the strength and the engineering property of the natural soil structure. Under the action of external force compaction, the volume of the soil body is reduced, soil body particles are compressed, and pores among the soil body particles are reduced, so that the contact connection effect between the slurry and the soil basic unit bodies is enhanced, and the compressive strength of the plain soil is formed. Generally, in this case, the gaps among the basic unit bodies of the mud are large, the structure is loose, and the compressive strength and the deformation resistance of the soil sample are small. After the components of slag, ceramic powder, desulfurized gypsum and the like are added,
first, these solid waste particles can fill the gaps between the slurry cells to further compact the mucky soil, thereby improving the early strength of the soil sample.
Secondly, the more active component in the mud is the soil colloid, which is generally negatively charged and its exterior is flooded with a large amount of K due to electrical attraction+，Na+And the like. When cement clinker and desulfurized gypsum are added into the slurry, under the action of water, a large amount of Ca is dissociated from the cement clinker and desulfurized gypsum+And OH-Prevents the positive ions on the surface of the slurry soil colloid from being resolved, reduces the electrostatic repulsion between the slurry soil colloids, thereby leading the slurry soil to be more easily communicatedAnd the mechanical compaction is adopted to reduce the void ratio and improve the structural strength and stability.
Third, a large amount of Ca is dissociated from the desulfurized gypsum and the surfactant+After hydration, the high water absorption resin can be mixed with H in slurry and air2O、CO2The reaction is carried out to generate CaCO3 and CaCO, which have higher strength and stability, so that the structural strength of the slurry soil sample is further improved.
The invention has the beneficial effects that:
1. the main components of the consolidating agent material comprise cement clinker, desulfurized waste gypsum and mineral powder waste residues, so that a large amount of solid waste is consumed, the resource utilization of the waste residues is realized, the effect of treating waste by waste is achieved, and the construction slurry treatment cost is reduced;
2. the invention can effectively replace the traditional building materials, directly mix and roll the curing agent and the building slurry to form a firm base plate, recycle the building slurry, solve the difficult problems of outward transportation, stacking and treatment of the building slurry, and reduce land occupation and environmental pollution;
3. the invention can effectively save resources, uses solid waste to replace the traditional common materials such as cement, stone and the like, further reduces the cost, realizes the reutilization of waste, and simultaneously releases a large amount of land to create economic value;
4. the curing agent is used for curing the building slurry, and the strength of a cured body of the cured building slurry can be realized by adjusting the mixing ratio of the curing agent, so that the curing effect of the building slurry is greatly improved;
5. the curing agent provided by the invention has the advantages of wide raw material source, low cost and simple production process, and realizes efficient and comprehensive utilization of resources.
Detailed Description
The following further illustrates embodiments of the invention:
example 1
(1) The method comprises the following raw materials in percentage by mass: 20% of cement clinker, 14% of ceramic powder and 15% of gypsum; 45 percent of mineral powder, and the raw materials are put into a vertical planetStirring twice in a ball mill at intervals of 20min for 30min each time to obtain a mixture A, wherein the revolution speed of the vertical planetary ball mill is 270-330 r/min, and the rotation speed of the vertical planetary ball mill is 60-80 r/min; then the mixture A is mixed with 3 percent of a surfactant Na2CO3Mixing with 3% HS series acrylic resin, and ball milling and stirring for 20-30min to obtain a curing agent;
(2) weighing the building slurry with the water content of 165 percent and the prepared curing agent according to the proportion of 95:5, uniformly stirring, stacking into a soil pile with the height of about 20cm, naturally drying, dehydrating, uniformly stirring, and preparing the stirred material into a cylindrical test block with the thickness of 10 multiplied by 10cm by a mould;
(3) the prepared test block is maintained in a normal-temperature natural moisture-preserving environment, and then unconfined compressive strength tests are carried out on the test block maintained for 7 days, 28 days and 90 days, and the results are shown in table 1.
Example 2
The process of example 1 was repeated with the respective component contents specified in table 1, the weight ratio of construction mud to curing agent being 94:6, and the results are given in table 1.
Example 3
The process of example 1 was repeated with the respective component contents specified in table 1, the weight ratio of construction mud to curing agent being 93:7, and the results are given in table 1.
Example 4
The process of example 1 was repeated with the respective component contents specified in table 1, the weight ratio of construction mud to curing agent being 92:8, and the results are given in table 1.
Example 5
The process of example 1 was repeated with the respective component contents specified in table 1, the weight ratio of construction mud to curing agent being 91:9, and the results are given in table 1.
Comparative example 1
The method of example 1 was repeated with the respective component contents specified in table 1, wherein the cement clinker was replaced by fly ash and the weight ratio of construction mud to curing agent was 95:5, and the results are given in table 1.
Comparative example 2
The process of example 1 was repeated with the component contents specified in table 1, wherein the ceramic powder was replaced by quicklime and the weight ratio of construction mud to curing agent was 95:5, and the results are given in table 1.
Comparative example 3
The process of example 1 was repeated with the respective component contents specified in table 1, in which the desulfurized gypsum was replaced by limestone and the weight ratio of construction mud to curing agent was 95:5, and the results are given in table 1.
Comparative example 4
The process of example 1 was repeated with the respective component contents specified in table 1, wherein the mineral fines were replaced by polyacrylamide and the weight ratio of construction mud to curing agent was 95:5, and the results are given in table 1.
Comparative example 5
Commercially available slurry curing agent A (SV-MSS model, available from Alibara Net) was purchased at a construction slurry to curing agent weight ratio of 92:8, and the results are shown in Table 1.
Comparative example 6
Commercially available slurry curing agent B (CY-1800, available from Guangdong building materials Net) was purchased at a weight ratio of 92:8 building slurry to curing agent, and the results are shown in Table 1.
TABLE 1 in-situ solidification test results for curing agent and building mud combined by different mass percentages
As shown in the test data of each example in Table 1, the cementing material prepared by the curing agent of the invention has high consolidation strength, and as the addition amount of the super absorbent resin is increased, the final setting time of the slurry is shortened and the strength is increased; under the same mixing amount, the capability of the curing agent of the embodiment of the invention for improving the performance of the building mud cured soil is higher than that of the commercially available mud curing agent adopted in the comparative example, and the related specification requirements are met (the 7d unconfined compressive strength of the building mud cured soil is not less than 0.1 MPA); the main components in the solidifying agent material are all derived from common solid wastes, so that the resource utilization of waste residues is realized, the cost of the solidifying agent is reduced, the performance of the solidified soil of the building slurry is improved, the effect of treating wastes with processes of wastes against one another is achieved, the overall treatment cost of the building slurry is saved, and the environment-friendly value and the economic benefit are higher;
the invention can obtain that the curing agents with different component mass percentages in the range can meet the roadbed requirements of various road base layers and subbase layers. The foregoing embodiments are illustrative of the principles and preferred embodiments of this invention, and various changes and modifications can be made therein without departing from the spirit and scope of the invention, which is to be protected.
Claims (10)
1. The curing agent for the building mud is characterized by comprising the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent.
2. The curing agent for construction mud according to claim 1, wherein the curing agent comprises the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent.
3. A curing agent for construction muds according to claim 1 or 2, characterized in that: the ceramic powder is formed by crushing and grinding defective ceramic products or waste ceramic products, and mainly contains SiO2And Al2O3The mass percentage content is more than 85 percent.
4. A curing agent for construction muds according to claim 1 or 2, characterized in that: the gypsum is power plant desulfurization waste gypsum, wherein sulfur trioxide in the sulfur waste gypsum is more than 42%, and the water content is less than 10%.
5. A curing agent for construction muds according to claim 1 or 2, characterized in that: the mineral powder is obtained by drying and grinding water-quenched blast furnace slag and mainly contains SiO2、Al2O3And CaO, the mass percentage content of which is more than 30 percent.
6. A curing agent for construction muds according to claim 1 or 2, characterized in that: the surfactant is Na2CO3、Na2SiO3·9H2O、NaOH、Na2SO4、NaNO3A mixture of one or more of them.
7. A curing agent for construction muds according to claim 1 or 2, characterized in that: the super absorbent resin is HS series super absorbent resin with high water absorption and high water retention.
8. The method for using the curing agent according to any one of claims 1 to 7, comprising the steps of:
(1) mixing cement clinker, ceramic powder, gypsum and mineral powder according to a set proportion, and carrying out ball milling and stirring for 60-80min to obtain a mixture A; then mixing the mixture A with a surfactant and super absorbent resin, and carrying out ball milling and stirring for 20-30min to obtain a curing agent;
(2) according to the mass ratio of the building slurry to the curing agent of 91-95: 5-9 percent of curing agent, stirring and mixing uniformly, and naturally dehydrating, forming and maintaining.
9. The method of application according to claim 8, characterized in that: the concentration of the building slurry is 150-220 g/L, the water content is 155-185%, and the sand content is 5-10%.
10. The method of application according to claim 8, characterized in that: the forming adopts a normal-temperature compression forming method, and the maintenance adopts a normal-temperature natural moisturizing maintenance method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011341685.8A CN112408840A (en) | 2020-11-25 | 2020-11-25 | Curing agent for building slurry and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011341685.8A CN112408840A (en) | 2020-11-25 | 2020-11-25 | Curing agent for building slurry and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112408840A true CN112408840A (en) | 2021-02-26 |
Family
ID=74842416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011341685.8A Pending CN112408840A (en) | 2020-11-25 | 2020-11-25 | Curing agent for building slurry and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112408840A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012091915A1 (en) * | 2010-12-30 | 2012-07-05 | United States Gypsum Company | Method for in-situ manufacture of a lightweight fly ash based aggregate |
| CN103880308A (en) * | 2014-02-19 | 2014-06-25 | 江苏坤泽科技股份有限公司 | Stone powder material curing agent and preparation method thereof |
| CN108218317A (en) * | 2018-01-19 | 2018-06-29 | 湖北工业大学 | A kind of high-moisture percentage sullage solidifying method |
| CN110451903A (en) * | 2019-08-29 | 2019-11-15 | 深圳市中金岭南有色金属股份有限公司 | A kind of composite cementitious materials and the cementing method of the ultra-fine tailings of lead-zinc ore of high-sulfur |
| KR20200037174A (en) * | 2020-03-30 | 2020-04-08 | 정하익 | Functional material, manufacture, construction, cleanup, equipment, facility, building, structure |
| CN111138099A (en) * | 2019-12-28 | 2020-05-12 | 肇庆市武大环境技术研究院 | Curing agent for phosphogypsum waste residues and curing method thereof |
| CN111151553A (en) * | 2019-12-28 | 2020-05-15 | 肇庆市武大环境技术研究院 | Synergistic curing treatment method for electrolytic manganese slag and phosphogypsum waste slag |
| CN111170663A (en) * | 2019-12-28 | 2020-05-19 | 肇庆市武大环境技术研究院 | Sea mud curing agent |
| CN111167829A (en) * | 2019-12-28 | 2020-05-19 | 肇庆市武大环境技术研究院 | Electrolytic manganese slag curing treatment method |
-
2020
- 2020-11-25 CN CN202011341685.8A patent/CN112408840A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012091915A1 (en) * | 2010-12-30 | 2012-07-05 | United States Gypsum Company | Method for in-situ manufacture of a lightweight fly ash based aggregate |
| CN103880308A (en) * | 2014-02-19 | 2014-06-25 | 江苏坤泽科技股份有限公司 | Stone powder material curing agent and preparation method thereof |
| CN108218317A (en) * | 2018-01-19 | 2018-06-29 | 湖北工业大学 | A kind of high-moisture percentage sullage solidifying method |
| CN110451903A (en) * | 2019-08-29 | 2019-11-15 | 深圳市中金岭南有色金属股份有限公司 | A kind of composite cementitious materials and the cementing method of the ultra-fine tailings of lead-zinc ore of high-sulfur |
| CN111138099A (en) * | 2019-12-28 | 2020-05-12 | 肇庆市武大环境技术研究院 | Curing agent for phosphogypsum waste residues and curing method thereof |
| CN111151553A (en) * | 2019-12-28 | 2020-05-15 | 肇庆市武大环境技术研究院 | Synergistic curing treatment method for electrolytic manganese slag and phosphogypsum waste slag |
| CN111170663A (en) * | 2019-12-28 | 2020-05-19 | 肇庆市武大环境技术研究院 | Sea mud curing agent |
| CN111167829A (en) * | 2019-12-28 | 2020-05-19 | 肇庆市武大环境技术研究院 | Electrolytic manganese slag curing treatment method |
| KR20200037174A (en) * | 2020-03-30 | 2020-04-08 | 정하익 | Functional material, manufacture, construction, cleanup, equipment, facility, building, structure |
Non-Patent Citations (4)
| Title |
|---|
| 孙江波等: "高吸水性树脂应用于混凝土养护的研究进展", 《商品混凝土》 * |
| 张旭等: "建筑泥浆泥水分离技术的研究进展", 《科技视界》 * |
| 王国富等: "《预拌混凝土绿色制造技术》", 30 November 2017, 中国城市出版社 * |
| 魏雁冰等: "固化法处理建筑泥浆池的试验研究", 《中国港湾建设》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106830777B (en) | The regeneration fill concrete of consumer waste incineration residue preparation and its application | |
| CN101805161B (en) | Baking-free brick cementing agent prepared from drilling solid waste | |
| CN101602567B (en) | Waste mud solidification processing method based on polypropylene acetamide | |
| CN111003984B (en) | Novel tailing mixed soil road subgrade material and preparation method thereof | |
| CN101607812B (en) | Compound curing agent of high cement slurry | |
| CN110964534B (en) | High-performance environment-friendly soft soil curing agent and preparation method thereof | |
| CN111138099A (en) | Curing agent for phosphogypsum waste residues and curing method thereof | |
| CN113880544A (en) | Silt soft soil curing agent and silt soft soil curing method | |
| CN112830739A (en) | Composite curing agent for sludge modified roadbed soil and resource utilization method | |
| CN114163174B (en) | Solid waste base modified cementing material and application thereof | |
| CN111762998A (en) | High-temperature activated composite sludge powder solidified dewatered sludge/silt and solidification method thereof | |
| CN113354310A (en) | Single-component geopolymer curing agent based on multi-component solid wastes and preparation method thereof | |
| CN115594373A (en) | Solid waste-based sludge curing agent and preparation method thereof | |
| CN114907059A (en) | CLSM (clay-bound metal sulfide) of alkali-excited red mud and spontaneous combustion coal gangue powder and preparation method thereof | |
| CN111170663A (en) | Sea mud curing agent | |
| CN118047588A (en) | Waterproof soil curing agent and preparation method and application method thereof | |
| Song et al. | Disposal of solid waste as building materials: A study on the mechanical and durability performance of concrete composed of gold tailings | |
| CN114276098A (en) | Road base material prepared from casting waste molding sand | |
| Liu et al. | Influence of composition of curing agent and sand ratio of engineering excavated soil on mechanical properties of fluidized solidified soil | |
| Sun et al. | Study on preparation of inorganic binder stabilized material with large dosage of phosphogypsum | |
| CN107285727B (en) | Baking-free water permeable brick prepared from waste slag soil and preparation process thereof | |
| CN106478018A (en) | A kind of ecological environment-friendly type nano cement based composites | |
| CN113800838B (en) | Road base material for highway and preparation method thereof | |
| CN112408840A (en) | Curing agent for building slurry and application method thereof | |
| CN111943571B (en) | High-strength waterproof salinized silt curing agent and curing method |
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: 20210226 |