CN110563397B - Dry-process desulfurized ash-based low-clinker high-permeability-resistance type field level hardening material - Google Patents
Dry-process desulfurized ash-based low-clinker high-permeability-resistance type field level hardening material Download PDFInfo
- Publication number
- CN110563397B CN110563397B CN201910965795.2A CN201910965795A CN110563397B CN 110563397 B CN110563397 B CN 110563397B CN 201910965795 A CN201910965795 A CN 201910965795A CN 110563397 B CN110563397 B CN 110563397B
- Authority
- CN
- China
- Prior art keywords
- parts
- slag
- ash
- dry
- blast furnace
- 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.)
- Active
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
-
- 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
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
Abstract
The invention discloses a dry desulphurization ash-based less-clinker high-permeability-resistance type terrace hardening material, which consists of 10-40 parts of blast furnace slag, 5-45 parts of converter steel slag, 0.1-40 parts of sandy soil, 5-20 parts of sintering desulphurization ash, 5-8 parts of slag powder, 1-2 parts of cement, 0.1-2 parts of additive and 12-13 parts of water, wherein the total volume part is 100 parts; the invention is prepared by the steps of proportioning, stirring, spreading, rolling and maintaining the components in sequence, the invention takes blast furnace slag, converter steel slag, sintering desulfurization ash and sandy soil as main raw materials, takes proper amount of slag powder and a small amount of cement as auxiliary materials, the strength grade of the obtained field level hardening material reaches C10-C25, and the low-strength grade concrete can be used for ground levels and road base layers of factories and mines, storage yards and building sites instead of the low-strength grade concrete.
Description
Technical Field
The invention relates to the field of building materials, in particular to an inorganic non-metallic material, and specifically relates to a dry-process desulfurized ash-based low-clinker high-permeability-resistance type field level hardening material.
Background
Along with the increase of environmental protection, the treatment intensity of various dregs is required to be increased, and the land occupation of stockpiling and the pollution to the environment are reduced. The waste residues discharged before and untreated over the years in some remote areas, such as blast furnace slag and steel slag piled in Xinjiang areas, are agglomerated and are difficult to utilize according to the conventional method. Meanwhile, tailings of mining enterprises and muck generated by various projects are to be utilized urgently, if shield sludge generated by a shield construction method contains gravel and soil, the method is generally used for earthwork backfilling, the resource utilization rate is low, or the soil and the sand are separated in the modes of screening, washing and the like, and the energy consumption is high. There is a need for a simple, low resource and energy consumption way to make efficient use of resources.
Meanwhile, in the traditional wet desulphurization process of steel plants and power plants, the sulfur content in the tail gas often cannot reach the emission standard. More and more desulfurization processes are transformed into circulating fluidized bed type dry desulfurization, and the desulfurizing agent adopts limestone which takes calcium carbonate as a main component. The sintering desulfurization ash containing calcium sulfite and calcium carbonate as main components has low activity and generally contains higher content of chloride ions. The higher chloride ion content limits its application in cement, and the sulfur component is wasted. The additive is mainly used for replacing a small amount of fly ash or aerated building blocks on a three-slag roadbed layer, and the mass percentage of the additive is generally 5-8%.
The converter steel slag contains a certain amount of free calcium oxide, has hidden stability hazards, and the stability of the converter steel slag is related to the treatment process of the steel slag in various steel mills. Most steel slags in steel mills still have high free calcium oxide content, and reports of poor stability such as use of steel slags as backfill, post-arching of road aggregate, or use in concrete production after grinding, and cracks in cast buildings and structures are not available.
The comprehensive utilization rate of the solid wastes of the buildings and the industry is low, a large amount of wastes are piled up, and the environmental influence is large. In addition, the cost of commercial concrete rises due to shortage of cement and gravel supply, and the cost of producing low grade (< C30) concrete is not much different than that of C30. The large-scale steel enterprises require that solid wastes are not delivered from factories, and the generated wastes are required to be sold in the form of products, rather than the mode that only transport fees are supplemented and processed by social enterprises in the past, the method has great pressure on solid waste treatment.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a less-clinker high-permeability-resistant type terrace hardening material based on dry desulphurization ash, which utilizes large quantities of low-value building and industrial solid wastes, converter steel slag and desulphurization ash, takes the blast furnace slag (old slag), the converter steel slag and sintered desulphurization ash, sandy soil or building slag soil as main raw materials, takes a proper amount of slag powder, a small amount of cement and additives as auxiliary materials, the blast furnace slag, the converter steel slag and the sandy soil with different grain diameters are closely stacked to form an aggregate structure body, calcium sulfite hemihydrate reacts with oxygen in the air to generate calcium sulfite hemihydrate, and then the calcium sulfite reacts with water continuously to generate gypsum dihydrate.
Simultaneously, the alkalinity of cement, sodium metasilicate excitant and converter steel slag is utilized to treat blast furnace slag, mineral powder and SiO2The alkaline excitation of the sandy soil as the main component and the sulfate excitation of the sintering desulfurization ash on the system promote the slag powder and the blast furnace slag to form hydration products which take C-S-H gel, C-A-H gel and ettringite as the main components, improve the early strength and the compactness of the hardened material, make up for the insufficient strength caused by low cement mixing amount, thereby improving the strength and the stability of the field level hardened material, and improving the impermeability of the hardened materialThe chemical reaction process can be represented by the following reaction equation:
xCa(OH)2+SiO2+(n-1)H2O→xCaO·SiO2·nH2O
(1.5～2.0)CaO·SiO2·aq+SiO2→(0.8～1.5)CaO·SiO2·aq
xCa(OH)2+Al2O3+mH2O→xCaO·Al2O3·nH2O
3CaO·Al2O3·6H2O+SiO2+mH2O→xCaO·SiO2·mH2O+yCaO·Al2O3·nH2O
3Ca(OH)2+Al2O3+2SiO2+mH2O→3CaO·Al2O3·2SiO2·nH2O
3CaO·Al2O3·6H2O+Ca(OH)2+6H2O→4CaO·Al2O3·13H2O
2CaSO3·1/2H2O+O2→2CaSO4·1/2H2O
2CaSO4·1/2H2O+3H2O→2CaSO4·2H2O
4CaO·Al2O3·13H2O+3(CaSO4·2H2O)+14H2O→3CaO·Al2O3·3CaSO4·32H2O+Ca(OH)2
xCa(OH)2+Na2SiO3+yH2O→xCaO·SiO2·yH2O+2NaOH
2Al(OH)3+2NaOH→2NaAlO2+H2O
pCa(OH)2+2NaAlO2+4H2O→pCaO·Al2O3·4H2O+2NaOH。
the above object of the present invention is achieved by the following technical solutions:
according to the first aspect of the invention, the dry desulfurization ash-based low-clinker high-permeability-resistant type terrace hardening material is composed of 10-40 parts of blast furnace slag, 5-45 parts of converter steel slag, 0.1-40 parts of sandy soil, 5-20 parts of sintering desulfurization ash, 5-8 parts of slag powder, 1-2 parts of cement, 0.1-2 parts of additive and 12-13 parts of water, wherein the total volume is 100 parts, and the dry desulfurization ash-based low-clinker high-permeability-resistant type terrace hardening material is prepared by sequentially carrying out material mixing, stirring, spreading, rolling and maintenance processes on the above components; wherein:
the blast furnace slag comprises newly produced blast furnace slag produced in blast furnace ironmaking or aged and agglomerated slag;
the converter steel slag is stable steel slag with free calcium oxide not more than 3.0% after being treated by a roller process.
Further, the main chemical component of the sintering desulfurization ash is CaCO3And CaSO3·1/2H2And O comprises desulfurization byproducts of the flue gas of a sintering machine of a steel plant after dry desulfurization or power plant dry desulfurization ash.
Further, the sandy soil is selected from natural sand, tailing sand, building residue soil or clay.
It should be noted that, since the apparent densities of the respective raw material components are greatly different, the respective raw material components required for preparing a unit volume of the field-level-hardened material can be prepared according to the volume ratio and the apparent density of each component, and are expressed by volume parts.
Furthermore, the mixture of the raw material components after being mixed is dry and thick.
Further, the field plateau hardening material is in a strength grade of C10-C25.
In a second aspect, the low-clinker high-impermeability type terrace hardened material is constructed by the processes of material preparation, stirring, paving, rolling and maintenance, the construction is rapid and convenient, the strength grade reaches C10-C25, and low-strength grade concrete can be replaced in specific occasions; wherein the paving is two-layer paving, and/or
The rolling comprises primary rolling, secondary rolling and final rolling, wherein the primary rolling is light rolling static pressure for 1-2 times, and the speed is 1.0-1.5 km/h;
the repressing adopts small exciting force, the low-frequency vibrocompaction is carried out twice at the speed of 1.5-2.0 km/h, and the high-frequency vibrocompaction is carried out twice at the speed of 2.0-3.0 km/h; the final pressure is static pressure twice, and the speed is 3.0-4.0 km/h; and/or
And the maintenance is surface moisturizing maintenance 7 d.
In a third aspect, the above-described terrace hardening material is used for floors and road base layers of factories, mines, storage yards, and construction sites.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention is constructed by adopting solid waste cementing materials (sintering desulfurization ash and slag powder) and solid waste aggregates (sand such as converter steel slag, blast furnace slag, building slag soil and the like) through the processes of material mixing, stirring, spreading, rolling and maintenance. On one hand, the coarse aggregates in the blast furnace slag, the converter steel slag and the building slag soil/sandy soil with different grain diameters are closely stacked with each other to form an aggregate structure, and on the other hand, under the alkaline excitation action of the cement, the converter steel slag and the additive and the sulfate excitation action of the sintering desulfurization ash, the SiO in the blast furnace slag, the slag powder and the building slag soil/clay2The produced hydration reaction forms hydration products, and the obtained field hardened concrete material has good strength and stability, good impermeability and safety, large solid waste consumption and reduced cost.
(2) The invention uses a large amount of industrial solid wastes such as dry desulphurization ash, building slag soil, blast furnace slag, steel slag and the like, the cement consumption is extremely low, the calcium sulfite hemihydrate in the dry desulphurization ash reacts with oxygen in the air to generate calcium sulfite hemihydrate, and then the calcium sulfite hemihydrate continuously reacts with water to generate dihydrate gypsum, thereby playing a good sulfate excitation role in the hydration of the blast furnace slag and mineral powder, and a small amount of sodium silicate excitant and SiO in slag powder2And Al2O3And SiO in clay2The reaction generates C-S-H and C-A-H, and the early strength and the compactness of the hardened material are improved, so that the material has excellent anti-permeability performance.
(3) The ground hardening material of the invention utilizes a large amount of waste, and simultaneously replaces a small amount of cement with steel slag powder, fly ash and the like to prepare roller compacted concrete, the steel slag can be recycled, the material performance is not lower than that of the traditional concrete material, the invention has larger cost advantage and environmental benefit, the invention adopts the on-site preparation stirring equipment with high automation and good dust collection effect, the material cost is further reduced, and the cost advantage is obvious.
(4) The invention has quick and convenient construction, the strength grade reaches C10-C25, and the invention can replace low-strength grade concrete in specific occasions and is used for the terrace and the road base layer of factories, mines, storage yards and construction sites. In addition, the existing municipal road construction usually adopts three-slag mixture or cement stabilized macadam as base material, the unconfined compressive strength of the highway to the roadbed is not less than 6.0MPa, and the defects are that the early strength is low, the maintenance period is long, the road construction road occupying time is long, and the traffic is smooth, so that the severe influence is brought.
Detailed Description
The blast furnace slag stored in the annual mode is taken from eight steel in Xinjiang, and is crushed to form 0.01-31.5 mm continuous gradation, and the newly produced blast furnace slag has 0.01-5 mm grain gradation.
The sandy soil is obtained by excavating Gobi soil from a construction site in Xinjiang, the grains are 0.01-31.5 mm, the sandy soil with the grain size of less than 5mm accounts for 40%, and the sandy soil with the grain size of 5-31.5 mm accounts for 60%.
The converter steel slag is Bao steel roller slag, the grain size specification is 0-15 mm, and the chemical components are shown in Table 1.
TABLE 1
| CaO | Fe2O3 | SiO2 | Al2O3 | MgO | MnO | P2O3 | TiO2 | V2O5 | Others |
| 42.490 | 25.620 | 13.190 | 8.500 | 3.280 | 2.720 | 2.340 | 0.784 | 0.558 | 0.518 |
Wherein, the content of free calcium oxide is 1.3 percent to 3.2 percent, the main mineral components are tricalcium silicate and dicalcium silicate, and a certain amount of calcium hydroxide and RO phase (fused with metal oxide solid solution mainly comprising FeO and MgO).
The sintered desulfurized ash is taken from a desulfurizing device of a sintering machine in a Bao steel-making workshop, the fineness (45 mu m screen residue) is 21.5 to 32.6 percent, and the specific surface area is 365 to 408m2The chemical composition of the components/kg is shown in Table 2.
TABLE 2
| SiO2 | MgO | Fe2O3 | Al2O3 | SO3 | CaSO3·1/2H2O | CaCO3 | f-CaO | Cl- |
| 1.7 | 1.5 | 4.6 | 2.5 | 2.3 | 40.4 | 45.2 | 1.6 | 0.18 |
The sintering desulfurization ash is high-calcium high-sulfur ash, CaCO3、CaSO3And Fe2O3Is higher in contentAnd SiO2And Al2O3The content of the sintered desulfurized fly ash is low, but the activity of the sintered desulfurized fly ash is low, and the strength activity indexes of the sintered desulfurized fly ash 7d and 28d are only 33% and 39% when the test is carried out by adopting a method of 'fly ash used in cement and concrete' GB/T1596-2017.
The fly ash is taken from class-F fly ash of a stone cave mouth power plant.
The dry desulfurization ash-based low-clinker high-permeability-resistant type terrace hardening material is composed of 15-40 parts of blast furnace slag, 10-45 parts of converter steel slag, 0.1-15 parts of sandy soil, 5-20 parts of sintering desulfurization ash, 5-8 parts of slag powder, 1-2 parts of cement, 0.1-0.3 part of additive and 12-13 parts of water, wherein the total volume is 100 parts, and the material is prepared by sequentially carrying out material mixing, stirring, spreading, rolling and curing on the components, is quick and convenient to construct, has the strength grade of C10-C25, and can replace low-strength grade concrete in a specific occasion; wherein the paving is two-layer paving, the rolling comprises primary rolling, secondary rolling and final rolling, the primary rolling is light rolling and static pressure is 1-2 times, and the speed is 1.0-1.5 km/h; the repressing adopts small exciting force, the low-frequency vibrocompaction is carried out twice at the speed of 1.5-2.0 km/h, and the high-frequency vibrocompaction is carried out twice at the speed of 2.0-3.0 km/h; and the final pressure is static pressure twice, the speed is 3.0-4.0 km/h, and the maintenance is surface moisturizing maintenance for 7 d.
The present invention is further illustrated by the following examples. The examples are to be construed as merely illustrative and not a limitation of the scope of the present invention.
Examples 1 to 3
Since the apparent densities of the various raw material components are greatly different, and the mass of each raw material component required for preparing the field hardened material of unit volume can be prepared according to the volume ratio and the apparent density of each component, the content of each raw material component when the low-clinker high-permeability-resistant field hardened material based on the dry desulfurized ash is prepared in examples 1 to 3 is shown in table 3 below by using the volume parts.
TABLE 3
Tests prove that the dry-process desulfurized ash-based low-clinker high-permeability-resistant type field hardening material obtained in the embodiments 1 to 3 has the highest 7d compressive strength, 28d compressive strength and 28d bending tensile strength respectively, and the main reasons are as follows:
(1) the strength grade of the prepared field level hardened concrete material can reach C15-C25 by using a small amount of cement and sintered desulfurized ash as cementing materials and building slag, blast furnace slag, aged slag and steel slag as aggregates.
(2) The important factor influencing the strength is the volume ratio of the steel slag, and the strength can be improved by doping a part of the steel slag. However, the steel slag should not completely replace the blast furnace slag, which contains active SiO2And Al2O3Can generate alkali excitation reaction with alkali in cement, steel slag and exciting agent.
(3) The secondary factors influencing the strength are the volume fraction of the aggregate and the sand-soil aggregate.
(4) The unimportant factors influencing the strength are the volume rate of cement and the volume rate of desulfurized fly ash, the II-grade fly ash has little influence on the strength, the fly ash can be eliminated, and the sintered desulfurized fly ash can be completely used as an external admixture.
Application example 1
Mutual strength and mutual strength of 850m in Xinjiang2The original terrace of the storage yard is seriously damaged, which affects the use of the yard; 720m2The steel slag used for the parking lot is paved, so that the environment-friendly requirement is not met, meanwhile, the parking condition is poor, the maintenance of the vehicle is not favorable, the field environment is improved, and the hardening treatment is carried out on the field.
The steel slag generated by eight steel, the crushed aged blast furnace slag, the Gobi sandy soil excavated by the building and the sintered desulfurized ash are transported to a ready-mixed concrete company, the consistency value of the mixture after being discharged from the mixer is controlled to be 15 +/-5 s, the dump truck reaches the construction site within 1 hour, and the consistency value of the site is controlled to be 30 +/-10 s.
The thickness of the field level hardening material is 30cm, the construction of paving and rolling is carried out in two layers, the loose paving coefficient of the first layer is preferably 1.14-1.15, and the loose paving coefficient of the second layer is preferably 1.11-1.12. The road roller is a steel wheel vibration road roller, the tonnage is not less than 10t, and the rolling operation is divided into three stages: primary pressing, secondary pressing and final pressing, wherein the primary pressing is light rolling static pressing for 1-2 times, and the speed is 1.0-1.5 km/h; the repressing adopts small exciting force, the low-frequency vibrocompaction is carried out twice at the speed of 1.5-2.0 km/h, and the high-frequency vibrocompaction is carried out twice at the speed of 2.0-3.0 km/h; and (4) performing static pressure twice at the speed of 3.0-4.0 km/h to flatten the surface, discharging slurry densely, eliminating cracks and rolling traces generated during re-pressing, and maintaining the surface for 7d after rolling.
7d and 28d after the rolling construction is finished, according to the technical specification of detecting the concrete strength by a core drilling method CECS03:2007, a core taking test is carried out on the hardened terrace concrete material of 30cm in the field, and the test result is shown in Table 4.
TABLE 4
From the core test results in table 4, it can be seen that the hardened terrace concrete material can achieve the C25 strength rating.
The molded specimens were sampled from the mixture and subjected to performance tests at 28d age, as shown in Table 5.
TABLE 5
The strength grade of the floor hardening material is not high and only has C25, but the floor hardening material has excellent impermeability grade which can reach P12 and is superior to the impermeability of common commercial concrete C60, because a large amount of compact gel products taking C-S-H and C-A-H as main components are formed, so that the floor hardening material has excellent impermeability.
The construction conditions show that compared with common concrete, when the site hardening terrace concrete material is constructed, a template is not needed, the construction is simple, convenient and quick, and the construction period can be shortened by 20-30%; can be mixed with a large amount of admixture, building residue soil, steel slag and blast furnace old slag, and the cement consumption is less than 50kg/m3The engineering investment can be saved by 10-30%, the unit water consumption is less, the drying shrinkage is small, the construction joint interval can be enlarged, the initial strength is high, the maintenance period is short, and the rolling construction is finishedAnd 3d, opening the traffic and driving the heavy-duty vehicle.
The solid waste consumption of the exemplary engineering is large. According to measurement and calculation, in a hardened terrace with the thickness of 30cm, about 1 ton of low-value solid wastes such as building residue soil, steel slag, blast furnace old slag, sintering desulfurization ash and the like are consumed per square meter.
The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention; modifications and variations may occur to those skilled in the art and are intended to be included within the scope of the present invention.
Claims (5)
1. A few clinker high-impermeability type field hardened material based on dry desulphurization ash is characterized by comprising 10-40 parts of blast furnace slag, 5-45 parts of converter steel slag, 0.1-40 parts of sandy soil, 5-20 parts of sintering desulphurization ash, 5-8 parts of slag powder, 1-2 parts of cement, 0.1-2 parts of sodium metasilicate and 12-13 parts of water, wherein the total volume is 100 parts, and the raw material components are subjected to batching, stirring, paving, rolling and maintenance procedures in sequence to obtain the C10-C25 strength grade few clinker high-impermeability type field hardened material; wherein:
the blast furnace slag is newly generated blast furnace slag in blast furnace ironmaking or aged slag which is stacked and agglomerated in years;
the converter steel slag is stable steel slag with the content of free calcium oxide not more than 3.0 percent after being processed by a roller process;
the sintering desulfurization ash is calcium-based dry desulfurization ash, and the main chemical component is CaCO3And CaSO3·1/2H2O, including desulfurization by-products of the flue gas of a sintering machine of a steel plant after dry desulfurization or power plant dry desulfurization ash;
the sandy soil is selected from natural sand, tailing sand, building residue soil or clay.
2. The low clinker high permeability resistant apron hardening material of claim 1, wherein the blended mixture of the raw material components is in a dry and thick state.
3. The low clinker high permeability resistance type apron hardening material of claim 1, wherein the paving is two-layer paving, the rolling comprises primary pressing, secondary pressing and final pressing, and the curing is surface moisture curing for 7 d; wherein:
the initial pressing is light rolling static pressure for 1-2 times, and the speed is 1.0-1.5 km/h;
the repressing adopts small exciting force, the low-frequency vibrocompaction is carried out twice at the speed of 1.5-2.0 km/h, and the high-frequency vibrocompaction is carried out twice at the speed of 2.0-3.0 km/h;
the final pressure is static pressure twice, and the speed is 3.0-4.0 km/h.
4. The low clinker high permeability type of tarmac hardening material of claim 1, wherein the thickness of the tarmac hardening material is 20-40 cm.
5. The dry desulfurized ash-based low-clinker high-permeability-resistant type terrace hardened material of any one of claims 1 to 4 is used for floors and road base layers of factories, mines, construction sites.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965795.2A CN110563397B (en) | 2019-10-12 | 2019-10-12 | Dry-process desulfurized ash-based low-clinker high-permeability-resistance type field level hardening material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965795.2A CN110563397B (en) | 2019-10-12 | 2019-10-12 | Dry-process desulfurized ash-based low-clinker high-permeability-resistance type field level hardening material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110563397A CN110563397A (en) | 2019-12-13 |
| CN110563397B true CN110563397B (en) | 2021-10-15 |
Family
ID=68784542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910965795.2A Active CN110563397B (en) | 2019-10-12 | 2019-10-12 | Dry-process desulfurized ash-based low-clinker high-permeability-resistance type field level hardening material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110563397B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112279565B (en) * | 2020-09-16 | 2022-05-31 | 中冶南方都市环保工程技术股份有限公司 | Method for preparing mine filling material by using solid waste cemented heavy metal tailings in steel industry |
| CN112851156B (en) * | 2021-01-11 | 2023-01-20 | 南京师范大学 | C25-grade alkali-activated silicon-aluminum all-solid waste concrete and preparation method thereof |
| CN113387629A (en) * | 2021-07-30 | 2021-09-14 | 宁波工程学院 | Controllable low-strength material utilizing steel slag desulfurization by-products and building muck and preparation method thereof |
| CN113603453A (en) * | 2021-08-02 | 2021-11-05 | 新疆硅质耐火材料有限公司 | Method for preparing imitation Song pottery brick from refractory clay tailings, steel slag and desulfurized ash |
| CN113860830B (en) * | 2021-09-02 | 2022-08-02 | 浙江大学 | Flexible anti-cracking covering anti-seepage material taking steel slag as main material and construction process |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005029404A (en) * | 2003-07-09 | 2005-02-03 | Univ Nihon | Cement composition |
| CN101215126B (en) * | 2007-01-05 | 2011-10-19 | 上海宝钢冶金技术服务有限公司 | Steel slag roller compacted concrete |
| CN102491664A (en) * | 2011-11-24 | 2012-06-13 | 上海宝田新型建材有限公司 | Modified steel slag composite admixture and preparation method thereof |
| CN102584062A (en) * | 2012-03-15 | 2012-07-18 | 宝山钢铁股份有限公司 | Mineral powder modified by sintering dry desulphurization ash and preparation method thereof |
| CN102701670A (en) * | 2012-05-23 | 2012-10-03 | 上海宝田新型建材有限公司 | Resource utilization type steel-slag concrete |
| CN103304207B (en) * | 2013-06-28 | 2015-11-04 | 武汉钢铁(集团)公司 | Semidrying sintering desulfuration ash masonry dry powder and manufacture method thereof |
| CN104591559A (en) * | 2014-12-25 | 2015-05-06 | 中国建筑材料科学研究总院 | Dry desulfurization ash slag cement and preparation method thereof |
| CN105819760B (en) * | 2016-03-14 | 2018-06-26 | 浙江大学 | A kind of ground polymers terrace base material |
| CN109485353A (en) * | 2019-01-18 | 2019-03-19 | 安徽马钢嘉华新型建材有限公司 | A kind of novel steel slag composite soil road basement material and preparation method |
-
2019
- 2019-10-12 CN CN201910965795.2A patent/CN110563397B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110563397A (en) | 2019-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110563397B (en) | Dry-process desulfurized ash-based low-clinker high-permeability-resistance type field level hardening material | |
| US20220143571A1 (en) | Red mud-based sewage treatment agent and preparation method thereof, red mud-based ceramsite concrete and preparation method thereof, and applications | |
| Nunes et al. | Recent advances in the reuse of steel slags and future perspectives as binder and aggregate for alkali-activated materials | |
| CN111704406A (en) | Application of household garbage incineration fly ash composite admixture in cement stabilized macadam mixture | |
| CN105314955B (en) | A kind of filling in mine material | |
| CN111499324B (en) | Low-toxicity phosphogypsum cemented macadam material and application thereof in road base course | |
| CN102060428A (en) | Silt curing agent and preparation method thereof | |
| CN112851277A (en) | Magnesium-cinder-based novel paving and mining filling material and preparation method thereof | |
| CN112876166A (en) | Metallurgical-based solid waste reinforcing material and preparation method thereof | |
| CN107399948A (en) | Fill strong concrete and its preparation and the application of iron tailings sand | |
| CN107352924A (en) | A kind of concrete | |
| CN111848083A (en) | Environment-friendly phosphogypsum composite stable material and preparation method thereof | |
| CN110407490A (en) | A kind of preparation method of the compound high additive cement of inorganic solid waste | |
| CN109912243A (en) | A kind of cement produced using Industrial Solid Waste | |
| CN115340308B (en) | Pretreatment method of industrial solid waste and application of solid waste in preparation of cementing material | |
| CN104529368B (en) | A kind of clinker-free cement super high strength concrete and using method thereof of utilizing the preparation of mixing plant waste water | |
| CN114591055A (en) | Steel slag aggregate low-carbon road concrete doped with coal-to-oil residue and preparation method thereof | |
| CN102633448A (en) | Fluorgypsum-based cementing materials for filling tailings and preparation method thereof | |
| CN108585560A (en) | A kind of no first-hand datum high-performance cement prepared by metallurgical slag | |
| CN109293327B (en) | Preparation and application methods of cement-free bulk industrial solid waste high-performance soil curing agent | |
| CN113264737A (en) | Multisource solid waste foundation hardening agent for reinforcing soft soil roadbed and application | |
| Zhang et al. | Properties and environmental impact of building foundation pit backfilling materials containing iron and steel solid waste | |
| CN112960960A (en) | Energy-saving heat-insulating building material prepared based on phosphogypsum and preparation method thereof | |
| CN110698122B (en) | Ecological light filler and preparation method thereof | |
| CN115353336B (en) | Regenerated mortar for alkali-activated baking-free waste residue soil bricks and preparation method and application thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |