CN113816704A - Alkali-activated slag seawater sea sand concrete and preparation method thereof - Google Patents
Alkali-activated slag seawater sea sand concrete and preparation method thereof Download PDFInfo
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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
- C04B28/08—Slag cements
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
- C04B14/068—Specific natural sands, e.g. sea -, beach -, dune - or desert sand
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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
- 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
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
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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
- 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
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/146—Silica fume
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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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/002—Water
- C04B22/0026—Salt water, e.g. seawater
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/24—Sea water resistance
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/26—Corrosion of reinforcement resistance
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- 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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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses alkali-activated slag seawater sea sand concrete and a preparation method thereof, wherein the concrete comprises 16-20% by mass of industrial waste residues, 1-3% by mass of alkali activator raw materials, 8-10% by mass of seawater, 20-25% by mass of sea sand and 45-55% by mass of coarse aggregates, and the concrete is prepared by uniformly mixing the industrial waste residues, the alkali activator, the seawater, the sea sand and the coarse aggregates. The concrete prepared by the invention fully utilizes seawater, sea sand and ocean resources, and takes industrial solid wastes such as slag and the like as cementing materials, thereby not only reducing the consumption of traditional material resources such as fresh water, river sand and the like, but also realizing the reutilization of the solid waste resources. The alkali-activated cementing material has the advantages of compact slurry structure, fixed chloride ions and the like, is suitable for high-temperature, high-humidity and high-salt marine environments, is applied to construction of engineering infrastructures in remote island and reef areas, and can effectively reduce engineering cost and construction period of projects.
Description
Technical Field
The invention belongs to the technical field of marine building engineering materials, and particularly relates to alkali-activated slag seawater sea sand concrete and a preparation method thereof.
Background
Concrete is one of the most common building materials in engineering construction and is mainly prepared by mixing cement, fresh water, river sand, broken stones and the like. However, with the increasing demand of engineering construction in China, natural resources such as fresh water and river sand are greatly consumed, so that the land resources and ecological environment in China are severely challenged. If the ocean resources such as seawater, sea sand and the like which are abundant in the ocean can be effectively utilized, the consumption of the traditional material resources such as fresh water, river sand and the like can be greatly relieved. In addition, if the ocean resources can be fully utilized for engineering construction in the island region in the open sea, the engineering cost and the construction period of the project can be greatly reduced. However, the high chloride content in seawater and sea sand easily causes corrosion of the reinforcement inside the structure, and further affects the service life and durability of the whole structure, which greatly limits the application of sea resources such as seawater and sea sand in engineering construction.
Traditional seawater sea sand concrete uses cement as a cementing material, however, cement consumes a large amount of energy resources and discharges a large amount of greenhouse gases in the production process, which is not favorable for the low-carbon development of environmental protection. In the face of increasing demand for engineering infrastructure construction, it is urgently needed to develop a marine concrete with localized raw materials, low cost, high environmental protection, high strength and high durability.
Disclosure of Invention
In view of the bottleneck problems faced by the traditional cement-based seawater sea sand concrete, the invention provides the alkali-activated slag seawater sea sand concrete and the preparation method thereof, which effectively reduce energy consumption and greenhouse gas emission, and realize sustainable development with low cost, energy conservation, emission reduction and environmental protection.
The technical scheme of the invention is as follows:
the concrete comprises 16-20% by mass of industrial waste residues, 1-3% by mass of alkali activator raw materials, 8-10% by mass of seawater, 20-25% by mass of sea sand and 45-55% by mass of coarse aggregates, wherein the sum of the mass percentages of the industrial waste residues, the alkali activator, the seawater, the sea sand and the coarse aggregates is 100%, and the concrete is formed by uniformly mixing the industrial waste residues, the alkali activator, the seawater, the sea sand and the coarse aggregates.
Further, the industrial waste residue is slag micro powder, fly ash and silica fume, and the mixture of the slag micro powder, the fly ash and the silica fume is the raw material of the cementing material, wherein the slag micro powder, the fly ash and the silica fume respectively account for 75-80%, 15-20% and 5% of the total amount of the cementing material.
Further, the alkali activator is composed of instant Na2SiO3Mixing powder, flake NaOH and seawater, and preparing alkali activator solution modulus (SiO)2Mass and Na2O mass ratio) of 1.2 to 1.6, Na2The proportion of the mass of O in the amount of the cementing material, namely the alkali doping amount is 4-8%.
Further, the concrete comprises the following raw materials in percentage by mass per cubic meter of concrete: 400kg of slag micro powder 360-2SiO320-60kg of powder, 5-20kg of flake NaOH and 250kg of seawater.
Furthermore, the seawater can be natural seawater or artificial seawater prepared according to a proportion, and the ratio of the seawater to the using amount of the cementing material, namely the water-gel ratio, is 0.45-0.55;
furthermore, the sea sand is fine sand or medium sand, the coarse aggregate particle size is broken stone or pebble of 5-25mm continuous gradation, and the sand rate is 31-35%.
Further, the preparation method of the alkali-activated slag seawater sea sand concrete comprises the following specific steps:
(1) weighing all the raw materials for later use;
(2) putting the dried sea sand and the coarse aggregate into a stirrer, and performing dry stirring to ensure that the aggregate is uniform;
(3) pouring the weighed industrial waste residue into the mixture and stirring to fully disperse the mixture;
(4) and pouring the prepared alkali-activated agent solution into the mixture and stirring to obtain the alkali-activated slag seawater sea sand concrete.
Further, in the step (2), the stirring time is 1.5-3 min; in the step (3), stirring for 2-4 min; in the step (4), the stirring time is 2-5 min.
Further, the preparation method of the alkali activator solution comprises the following specific steps: (1) weighing the instant Na2SiO3Pouring the powder into seawater and stirring; (2) slowly adding flake NaOH into the mixed solution, stirring to obtain Na2SiO3The powder and the NaOH particles are completely dissolved; (3) sealing the mixed alkaline hair agent solution and cooling for later use.
Further, in the step (1), the stirring time is 1-3 min; in the step (2), stirring for 2-4 min; in the step (3), the cooling time is 6-24 h.
Advantageous effects
(1) The concrete prepared by the invention fully utilizes abundant marine resources such as seawater, sea sand and the like, not only effectively relieves the consumption of natural resources such as fresh water, river sand and the like, but also reduces the damage to the ecological environment in the river sand excavation process, is particularly suitable for the marine environment, and can be prepared by using the seawater and the sea sand which are locally obtained in island regions.
(2) The concrete prepared by the method is particularly suitable for construction of engineering infrastructures in the open sea island region, and the concrete is prepared by using locally available seawater and sea sand in the open sea island reef region, so that the problem of shortage of traditional building materials in the island region can be solved, adverse effects on project schedule caused by weather changes in the material transportation process can be avoided, and the construction cost and the construction period are greatly reduced.
(3) The concrete prepared by the invention adopts the alkali-activated cementing material to replace the traditional cement-based material, and the raw materials of the concrete are derived from industrial byproducts, such as: slag, fly ash, silica fume, coal gangue and the like, not only realizesReuse of industrial solid waste and effective reduction of CO in cement production2Emission and energy consumption, and the sustainable development of low cost, energy conservation, emission reduction, low carbon, high efficiency and environmental protection is realized. Through the improvement of the method, the alkali-activated slag seawater sea sand concrete with localized raw materials, low cost, high environmental protection, high strength and high durability can be prepared.
(4) Compared with cement-based cementing materials, the alkali-activated slag cementing material used for preparing the concrete has the advantages of high strength, strong erosion resistance, compact slurry structure and the like, can effectively enhance the microstructure of an aggregate-slurry interface in the concrete, further greatly enhances the seawater erosion resistance and the permeability resistance of the concrete, and greatly improves the serviceability and the durability of the marine concrete and the structure thereof. In addition, the alkali-activated gelled slurry also has the capacity of fixing chloride ions, so that the support is provided for the alkali-activated gelled slurry to serve in a high-temperature, high-humidity and high-salt marine environment, and the corrosion of the chloride ions in seawater and sea sand to the reinforcement materials in the structure can be relieved, so that the aims of improving the durability of the concrete and the structure of the concrete are fulfilled.
(5) The concrete prepared by the invention is doped with 5% of silica fume and 10-15% of fly ash, so that the defects of quick setting time and large shrinkage of the alkali-activated full-slag cementing material can be effectively alleviated, and the strength characteristic of the concrete can not be basically influenced.
Drawings
In order to better illustrate the preparation process of the alkali-activated slag seawater sea sand concrete, the attached drawings show the preparation flows of an activator solution and concrete, and simultaneously attach the bonding-slipping curves between GFRP (glass fiber reinforced plastics) ribs and cement-based and alkali-activated slag-based seawater sea sand concrete.
FIG. 1 is a diagram showing a process of preparing an alkali activator solution;
FIG. 2 is a flow chart of the preparation of alkali-activated slag seawater sea sand concrete;
FIG. 3 is a graph showing the binding-slip curves of cement-based and alkali-activated slag-based seawater sea sand concrete with GFRP bars.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment provides a preparation method of alkali-activated slag seawater sea sand concrete, which is prepared from S95 slag micro powder, I-grade fly ash, 98 silica fume, sea sand, broken stone and instant Na2SiO3Powder, flaky anhydrous NaOH and seawater. Wherein, the fineness modulus of the sea sand is 2.63; the crushed stone is limestone crushed stone with 5-25mm continuous gradation; the seawater is prepared according to ASTM D1141-2003 standard; instant Na2SiO3The powder modulus is 2.85, the mass fraction is 59.6 wt% SiO2And 21.6 wt% Na2O; modulus of excitant (SiO) used in concrete2/Na2O) is 1.2, and the alkali content (Na)2The ratio of the mass of O to the amount of the cementing material) is 3 percent, 4 percent and 6 percent; while PO 42.5 cement was used as control example 1. The mass ratio of each raw material in each cubic meter of concrete in the examples is shown in table 1.
TABLE 1 mixing ratio of seawater and sea sand concrete in each example
The preparation process of the alkali-activated slag seawater sea sand concrete in the embodiment, as shown in fig. 1 and 2, includes the following steps:
1) weighing all the raw materials according to the proportion in the table 1 for later use;
2) weighing instant Na2SiO3Pouring the powder into seawater, stirring for 2min, slowly adding flake NaOH into the mixed solution, and stirring for about 3min to allow Na to form2SiO3Completely dissolving the powder and NaOH particles, and finally sealing the mixed alkaline hair agent solution and cooling for 24 hours for later use;
3) putting the dried sea sand and the crushed stone into a stirrer, and dry-stirring for 1.5-3 min to make the aggregate uniform;
4) pouring the weighed mineral powder, fly ash and silica fume into the mixture, and stirring for 2min to fully disperse the mixture;
5) pouring the alkali-activated agent solution prepared in the step 2) into the mixture and stirring for 3min to obtain the alkali-activated slag seawater sea sand concrete.
After the concrete in the embodiment is cured for 28 days, the compression resistance and the splitting tensile strength are tested according to the test method standard (GB/T50081-2019) of the physical and mechanical properties of the concrete; the concrete and GFRP drawing performance tests in the examples were carried out simultaneously. The test results are shown in table 2.
Table 2 test results of mechanical and adhesive properties of seawater sand concrete in each example
As can be seen from examples 2-4 in Table 2, the compressive strength and the splitting tensile strength of the alkali-activated slag seawater sea sand concrete gradually increased with the increase of the alkali doping amount, but the ratio of the compressive strength to the splitting tensile strength gradually decreased. The main reason is that the increase of the alkali doping amount promotes the polymerization reaction of the slurry, thereby effectively improving the strength of the slurry; but this accelerated reaction also increases the porosity and brittleness of the slurry to some extent. In addition, the increase in the strength of the concrete promotes the improvement in the adhesion between the concrete and the FRP ribs. Comparing example 1 with example 2, it can be seen that the ratio of the compressive strength to the cleavage tensile strength and the ratio of the bonding strength to the compressive strength of the alkali-activated slag seawater sea sand concrete are higher than those of the cement-based seawater sea sand concrete, indicating that the use of the alkali-activated cementitious material can effectively enhance the cleavage tensile strength of the concrete and the bonding property between the concrete and the GFRP rib, particularly the slope of the ascending section of the bonding slip curve, as shown in fig. 3. The alkali-activated cementing material has a compact slurry structure, so that the microstructure of an aggregate-slurry interface is enhanced, the enhanced interface delays the development of cracks in a loading process and enhances the bond strength of slurry and FRP (fiber reinforced plastic) bars, and the cleavage tensile strength of concrete and the bonding property of the concrete and the FRP bars are improved. Meanwhile, the alkali excites the compact slurry structure of the cementing material and the capability of fixing chloride ions, so that the invasion of external erosive ions can be relieved, and further the corrosion of the reinforcement material in the structure is delayed, and the durability and the service life of the traditional seawater-sea sand concrete structure can be improved.
In conclusion, the alkali-activated slag seawater sea sand concrete prepared by the invention can realize the improvement of the compressive strength, the splitting tensile strength, the elastic modulus, the impermeability and the durability of the traditional cement-based seawater sea sand concrete, so that the problems of the shortage of construction materials in the offshore island region and the durability of the marine concrete structure in the marine environment can be effectively solved. It should be noted that the above-mentioned embodiments are only some of the embodiments of the present invention, and not all of them. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (10)
1. The alkali-activated slag seawater sea sand concrete is characterized in that: the concrete comprises 16-20% by mass of industrial waste residues, 1-3% by mass of alkali activator raw materials, 8-10% by mass of seawater, 20-25% by mass of sea sand, 45-55% by mass of coarse aggregates, and the sum of the mass percentages of the industrial waste residues, the alkali activator, the seawater, the sea sand and the coarse aggregates is 100%, and the concrete is prepared by uniformly mixing the industrial waste residues, the alkali activator, the seawater, the sea sand and the coarse aggregates.
2. The alkali-activated slag seawater sea sand concrete of claim 1, wherein: the industrial waste residue is slag micro powder, fly ash and silica fume, and the mixture of the slag micro powder, the fly ash and the silica fume is used as a raw material of a cementing material, wherein the slag micro powder, the fly ash and the silica fume respectively account for 75-80%, 15-20% and 5% of the total amount of the cementing material.
3. The alkali-activated slag seawater sea sand concrete of claim 2, wherein: the alkali activator is prepared from instant Na2SiO3Mixing powder, flake NaOH and seawater to obtain alkali activator solution with modulus of 1.2-1.6, and Na2The proportion of the mass of O in the amount of the cementing material, namely the alkali doping amount is 4-8%.
4. The alkali-activated slag seawater sea sand concrete of claim 3, wherein: the concrete comprises the following raw materials in percentage by mass per cubic meter of concrete: 400kg of slag micro powder 360-2SiO320-60kg of powder, 5-20kg of flake NaOH and 250kg of seawater.
5. The alkali-activated slag seawater sea sand concrete according to claim 1, wherein the seawater is natural seawater or artificial seawater prepared in proportion, and the ratio of the amount of the seawater to the amount of the cementitious material, i.e., the water-cement ratio, is 0.45-0.55.
6. The alkali-activated slag seawater sea sand concrete according to claim 1, wherein the sea sand is fine sand or medium sand, the coarse aggregate is crushed stone or pebble continuously graded in a particle size of 5 to 25mm, and the sand rate is 31 to 35%.
7. The method for preparing alkali-activated slag seawater sea sand concrete according to claim 4, which is characterized by comprising the following specific steps:
(1) weighing all the raw materials for later use;
(2) putting the dried sea sand and the coarse aggregate into a stirrer, and performing dry stirring to ensure that the aggregate is uniform;
(3) pouring the weighed industrial waste residue into the mixture and stirring to fully disperse the mixture;
(4) and pouring the prepared alkali-activated agent solution into the mixture and stirring to obtain the alkali-activated slag seawater sea sand concrete.
8. The preparation method according to claim 7, wherein the preparation method of the alkali activator solution comprises the following specific steps: (1) weighing the instant Na2SiO3Pouring the powder into seawater and stirring; (2) slowly adding flake NaOH into the mixed solution, stirring to obtain Na2SiO3The powder and the NaOH particles are completely dissolved; (3) sealing the mixed alkaline hair agent solution and cooling for later use.
9. The preparation method according to claim 7, wherein in the step (2), the stirring time is 1.5-3 min; in the step (3), the stirring time is 2-4 min; in the step (4), the stirring time is 2-5 min.
10. The preparation method according to claim 8, wherein in the step (1), the stirring time is 1-3 min; in the step (2), the stirring time is 2-4 min; in the step (3), the cooling time is 6-24 h.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115259802A (en) * | 2022-08-15 | 2022-11-01 | 华能国际电力江苏能源开发有限公司南通电厂 | Seawater sea sand concrete with chloride ion curing capability and toughness |
| CN115893886A (en) * | 2022-11-22 | 2023-04-04 | 河海大学 | Solid waste base-activated cementing material and preparation method thereof |
| CN116217193A (en) * | 2022-11-16 | 2023-06-06 | 中国海洋大学 | Alkali-activated full-solid waste seawater sea sand coral concrete for island reefs and preparation process |
-
2021
- 2021-09-29 CN CN202111150097.0A patent/CN113816704A/en active Pending
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| 卢祎苗等: "矿渣—粉煤灰基地聚合物性能研究", 《吉林建筑大学学报》, vol. 38, no. 1, 28 February 2021 (2021-02-28), pages 53 - 57 * |
| 徐金金等: "碱激发矿粉海水海砂混凝土与CFRP筋粘结性能研究", 《工程力学》, 30 June 2019 (2019-06-30), pages 175 - 183 * |
| 杨晓庆: "碱激发粉煤灰/矿渣自收缩机理研究", 《中国优秀博硕士学位论文全文数据库（硕士）工程科技Ⅰ辑》, no. 2, 15 February 2021 (2021-02-15), pages 21 - 22 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115259802A (en) * | 2022-08-15 | 2022-11-01 | 华能国际电力江苏能源开发有限公司南通电厂 | Seawater sea sand concrete with chloride ion curing capability and toughness |
| CN116217193A (en) * | 2022-11-16 | 2023-06-06 | 中国海洋大学 | Alkali-activated full-solid waste seawater sea sand coral concrete for island reefs and preparation process |
| CN116217193B (en) * | 2022-11-16 | 2024-02-06 | 中国海洋大学 | Alkali-activated full-solid waste seawater sea sand coral concrete for island reefs and preparation process |
| CN115893886A (en) * | 2022-11-22 | 2023-04-04 | 河海大学 | Solid waste base-activated cementing material and preparation method thereof |
| CN115893886B (en) * | 2022-11-22 | 2024-01-23 | 河海大学 | Solid waste base alkali-activated cementing material and preparation method thereof |
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