CN113087485A - Ocean engineering repair cementing material prepared from modified quartz sand and preparation method thereof - Google Patents
Ocean engineering repair cementing material prepared from modified quartz sand and preparation method thereof Download PDFInfo
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- CN113087485A CN113087485A CN202110273567.6A CN202110273567A CN113087485A CN 113087485 A CN113087485 A CN 113087485A CN 202110273567 A CN202110273567 A CN 202110273567A CN 113087485 A CN113087485 A CN 113087485A
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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
- C04B28/30—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 magnesium cements or similar 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
- 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
- C04B2111/72—Repairing or restoring existing buildings or building materials
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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
- 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
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Abstract
The invention belongs to the field of cementing materials, and particularly relates to a cementing material for ocean engineering repair prepared by taking modified quartz sand as a raw material and a preparation method thereof. The modified quartz sand and the stone powder are mixed through the second step to obtain a second mixture, the second mixture is ground into fine powder through the second step and finally added into the second ingredient, so that the strength of the finally prepared cementing material is greatly improved, the reliability of the application of the cementing material is ensured, the loss caused by concrete fracture is avoided, the economic benefit is improved, and the safety is ensured.
Description
Technical Field
The invention relates to the field of cementing materials, in particular to a cementing material for ocean engineering repair prepared by taking modified quartz sand as a raw material and a preparation method thereof.
Background
Cementitious materials, also known as cements. Under the physical and chemical action, it can be changed into firm stone-like body from slurry, and can be used for cementing other materials, so that it can be made into the composite solid matter with a certain mechanical strength. In civil engineering materials, any material capable of bonding granular or block materials into a whole through a series of physical and chemical changes is called a gelled material. The cementing material is a material which can bond loose or blocky materials into a whole in the process of changing plastic slurry into hard stone by the physical and chemical action of the cementing material, and is also called as a cementing material.
The common cementing material is concrete, commonly called cement, and the existing concrete is mostly prepared from calcareous raw materials (such as limestone), siliceous raw materials (such as sandstone and silica), aluminous raw materials (such as fly ash and bauxite) and irony raw materials (such as iron ore, sulfuric acid residue and copper residue).
In order to solve the problems, the application provides a cementing material for ocean engineering repair prepared by taking modified quartz sand as a raw material and a preparation method thereof.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides a cementing material for ocean engineering repair prepared by taking modified quartz sand as a raw material and a preparation method thereof, and the cementing material has the characteristics of high strength and quick condensation.
(II) technical scheme
In order to solve the technical problems, the invention provides a cementing material for ocean engineering repair prepared by taking modified quartz sand as a raw material and a preparation method thereof, wherein the cementing material comprises mineral waste residue, coal cinder, stone powder, modified quartz sand, magnesium sulfate solution, magnesium oxide, water and an exciting agent, the mineral waste residue and the coal cinder are mixed in advance to form a first mixture, the modified quartz sand and the stone powder are mixed to form a second mixture, the magnesium sulfate, the magnesium oxide and the water participate in a reaction to form a cementing system, and the exciting agent is one or a mixture of alkali metal hydroxide and alkali metal carbonate;
removing impurities from quartz sand, drying, preheating to 70-85 ℃, then immersing into liquid nitrogen for 5-6 minutes, taking out, then placing into a sand mixer, adding a quartz sand surface modifier, and mixing for 50-70 seconds to obtain modified quartz sand;
the quartz sand surface modifier comprises the following components in percentage by mass: 3.5-5% of carboxymethyl cellulose, 1.2-2% of calcium dodecyl sulfonate, 0.6-1% of coupling agent and the balance of water;
the method comprises the following steps:
the method comprises the following steps: mixing mineral waste residues and coal slag according to a ratio, and uniformly stirring to obtain a mixture I;
secondly, the step of: mixing the modified quartz sand and the stone powder according to a proportion, and uniformly stirring to obtain a mixture II;
③: mixing the mixture I obtained in the step I with an exciting agent, grinding into fine powder, grading and sieving, taking out the fine powder with the required mesh number, continuously grinding the remaining unqualified fine powder, and sieving until the screen residue is less than 5% to obtain an ingredient I;
fourthly, the method comprises the following steps: uniformly mixing the magnesium sulfate solution, magnesium oxide and water, stirring, accelerating chemical reaction to obtain a ternary integrated gelling system, and refrigerating at low temperature for later use;
fifthly: mixing the ingredient I obtained in the step III with the gelling system obtained in the step IV, uniformly stirring, aging for a period of time to obtain an ingredient block, and performing steam curing on the ingredient block for a period of time to obtain an ingredient block II;
sixthly, the method comprises the following steps: calcining the ingredient block II prepared in the fifth step at a constant temperature to remove liquid components, and waiting for cooling after calcining or performing accelerated cooling by adopting other means to prepare an ingredient block III;
seventh, the method comprises the following steps: grinding the ingredient block III prepared in the step (sixthly) into fine powder, sieving, taking out the fine powder with required mesh number, continuously grinding the remaining unqualified fine powder, and sieving until the screen allowance is less than 5% to obtain an ingredient II;
and (v): grinding the mixture II prepared in the step II into fine powder, sieving, taking out the fine powder with required meshes, continuously grinding the remaining unqualified fine powder, and sieving until the screen allowance is less than 5% to obtain a third ingredient;
ninthly: and (c) mixing the ingredient II and the ingredient III prepared in the step (c) and the step (b), uniformly stirring, grinding into fine powder again, sieving, taking out the fine powder with the required mesh number, continuously grinding the rest unqualified fine powder, and sieving until the sieve residue is less than 5%, thus preparing the oceanographic engineering repair binding material by using the modified quartz sand as the raw material.
Preferably, the ratio of the mineral waste residue to the coal cinder in the step (i) is 1-3:5-10, and the main component of the mineral waste residue is silicate.
Preferably, the ratio of the modified quartz sand to the stone powder in the step II is 2-5: 5-10.
Preferably, the ratio of the exciting agent to the first mixed material in the third step is 0.1-0.3:1-3, and when the exciting agent is mixed for use, the ratio of the alkali metal hydroxide to the alkali metal carbonate is 1-3: 4-5.
Preferably, the gelling system prepared in the step (iv) contains magnesium hydroxide gel generated by magnesium oxide, and the magnesium sulfate provides enough sulfate radicals to improve the gelling strength.
Preferably, in the fifth step, the aging time is 1.5 to 3.0 hours, the steam curing temperature is 90 to 100 ℃, and the curing time is 9 to 15 hours.
Preferably, the calcination temperature in the step (sixthly) is 750-1000 ℃, and the calcination time is 20-90 minutes.
Preferably, the mixing ratio of the ingredient two and the ingredient three prepared in the step (c) is 6-7:2.5-4, and the ground fine powder is uniformly mixed.
Preferably, the step I, the step II and the step IV are in parallel relation and can be carried out simultaneously so as to improve the efficiency.
The technical scheme of the invention has the following beneficial technical effects:
1. the modified quartz sand and the stone powder are mixed through the second step to obtain a second mixture, the second mixture is ground into fine powder through the second step and finally added into the second ingredient, so that the strength of the finally prepared cementing material is greatly improved, the reliability of the application of the cementing material is ensured, the loss caused by concrete fracture is avoided, the economic benefit is improved, and the safety is ensured.
2. By arranging the gelling system formed by mixing the magnesium hydroxide, the magnesium sulfate and the water, the gelling property of the final finished product is enhanced, so that the coagulation speed is increased, the damage caused by external factors due to the slow coagulation speed is avoided, and the use reliability is improved.
3. Through modifying the quartz sand, namely preheating the quartz sand firstly and then carrying out low-temperature treatment by using liquid nitrogen, the cracks and brittleness of the surface of the quartz sand are increased, the surface area of the quartz sand is increased, the quartz sand is convenient to combine with a quartz sand surface modifier and other materials, the adsorption force of the quartz sand is improved, and the quartz sand plays a role in shortening the solidification time in an adhesive material.
Drawings
FIG. 1 is a schematic flow chart of the overall steps of the present invention;
FIG. 2 is a schematic diagram of a manufacturing process of the gelling system of the present invention;
FIG. 3 is a schematic view of the third process flow of ingredients of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, a cementing material for ocean engineering repair prepared by using modified quartz sand as a raw material and a preparation method thereof are provided, wherein the cementing material comprises mineral waste residue, coal cinder, stone powder, modified quartz sand, magnesium sulfate solution, magnesium oxide, water and an exciting agent, the mineral waste residue and the coal cinder are mixed in advance to form a first mixture, the modified quartz sand and the stone powder are mixed to form a second mixture, the magnesium sulfate, the magnesium oxide and the water participate in a reaction to form a cementing system, and the exciting agent is one or a mixture of alkali metal hydroxide and alkali metal carbonate;
removing impurities from quartz sand, drying, preheating to 70-85 ℃, then immersing into liquid nitrogen for 5-6 minutes, taking out, then placing into a sand mixer, adding a quartz sand surface modifier, and mixing for 50-70 seconds to obtain modified quartz sand;
the quartz sand surface modifier comprises the following components in percentage by mass: 3.5-5% of carboxymethyl cellulose, 1.2-2% of calcium dodecyl sulfonate, 0.6-1% of coupling agent and the balance of water;
the first embodiment is as follows: the method comprises the following steps:
the method comprises the following steps: mixing mineral waste residues and coal cinder according to the proportion of 1:5, and uniformly stirring to obtain a mixture I;
secondly, the step of: mixing the modified quartz sand and the stone powder according to the proportion of 2:5, and uniformly stirring to obtain a mixture II;
③: mixing the mixture I obtained in the step I with an exciting agent 1:0.1, grinding into fine powder, grading and sieving, taking out the fine powder with the required mesh number, continuously grinding the rest unqualified materials, and sieving until the screen allowance is less than 5%, thus obtaining a material I;
fourthly, the method comprises the following steps: uniformly mixing the magnesium sulfate solution, magnesium oxide and water according to the ratio of 1:0.8:10, stirring, accelerating chemical reaction to obtain a ternary integrated gelling system, and refrigerating at low temperature for later use;
fifthly: mixing the ingredient I obtained in the step III with the gelling system obtained in the step IV, uniformly stirring, aging for 1.5 hours to obtain an ingredient block, and performing steam curing on the ingredient block for 9 hours at the steam curing temperature of 90 ℃ to obtain an ingredient block II;
sixthly, the method comprises the following steps: calcining the ingredient block II prepared in the fifth step at a constant temperature of 750 ℃ for 20-40 minutes to remove liquid components, and after the calcination is finished, waiting for cooling or performing accelerated cooling by adopting other means to prepare an ingredient block III;
seventh, the method comprises the following steps: grinding the ingredient block III prepared in the step (sixthly) into fine powder, sieving, taking out the fine powder with required mesh number, continuously grinding the remaining unqualified fine powder, and sieving until the screen allowance is less than 5% to obtain an ingredient II;
and (v): grinding the mixture II prepared in the step II into fine powder, sieving, taking out the fine powder with required meshes, continuously grinding the remaining unqualified fine powder, and sieving until the screen allowance is less than 5% to obtain a third ingredient;
ninthly: and (c) mixing the ingredient II and the ingredient III prepared in the step (c) and the step (b), mixing according to the proportion of 6:2.5, uniformly stirring at the rotating speed of 100 revolutions per minute, grinding into fine powder again, sieving, taking out the fine powder with the required mesh number, continuously grinding the rest unqualified fine powder, and sieving until the sieve residue is less than 5%, thus preparing the marine engineering repair cementing material by using the modified quartz sand as the raw material.
Example two: the method comprises the following steps:
the method comprises the following steps: mixing mineral waste residues and coal cinder according to the proportion of 2:7, and uniformly stirring to obtain a mixture I;
secondly, the step of: mixing the modified quartz sand and the stone powder according to the proportion of 4:8, and uniformly stirring to obtain a mixture II;
③: mixing the mixture I obtained in the step I with an exciting agent 2:0.15, grinding into fine powder, grading and sieving, taking out the fine powder with the required mesh number, continuously grinding the rest unqualified materials, and sieving until the screen allowance is less than 5%, thus obtaining a material I;
fourthly, the method comprises the following steps: uniformly mixing the magnesium sulfate solution, magnesium oxide and water according to the ratio of 1:0.8:10, stirring, accelerating chemical reaction to obtain a ternary integrated gelling system, and refrigerating at low temperature for later use;
fifthly: mixing the ingredient I obtained in the step III with the gelling system obtained in the step IV, uniformly stirring, aging for 2.0 hours to obtain an ingredient block, and performing steam curing on the ingredient block for 13 hours, wherein the steam curing temperature is 95 ℃ to obtain an ingredient block II;
sixthly, the method comprises the following steps: calcining the ingredient block II prepared in the fifth step at a constant temperature of 850 ℃, removing liquid components after calcining for 30-70 minutes, and waiting for cooling or accelerating cooling by adopting other means after calcining to prepare an ingredient block III;
seventh, the method comprises the following steps: grinding the ingredient block III prepared in the step (sixthly) into fine powder, sieving, taking out the fine powder with required mesh number, continuously grinding the remaining unqualified fine powder, and sieving until the screen allowance is less than 5% to obtain an ingredient II;
and (v): grinding the mixture II prepared in the step II into fine powder, sieving, taking out the fine powder with required meshes, continuously grinding the remaining unqualified fine powder, and sieving until the screen allowance is less than 5% to obtain a third ingredient;
ninthly: and (c) mixing the ingredient II and the ingredient III prepared in the step (c) and the step (b), mixing according to the proportion of 7:3.5, uniformly stirring at the rotating speed of 100 revolutions per minute, grinding into fine powder again, sieving, taking out the fine powder with the required mesh number, continuously grinding the rest unqualified fine powder, and sieving until the sieve residue is less than 5%, thus preparing the marine engineering repair cementing material by using the modified quartz sand as the raw material.
Example three: the method comprises the following steps:
the method comprises the following steps: mixing mineral waste residues and coal cinder according to a ratio of 3:10, and uniformly stirring to obtain a mixture I;
secondly, the step of: mixing the modified quartz sand and the stone powder according to the proportion of 2:5, and uniformly stirring to obtain a mixture II;
③: mixing the mixture I obtained in the step I with an exciting agent 3:0.3, grinding into fine powder, grading and sieving, taking out the fine powder with the required mesh number, continuously grinding the rest unqualified materials, and sieving until the screen allowance is less than 5%, thus obtaining a material I;
fourthly, the method comprises the following steps: uniformly mixing the magnesium sulfate solution, magnesium oxide and water according to the ratio of 1:0.8:10, stirring, accelerating chemical reaction to obtain a ternary integrated gelling system, and refrigerating at low temperature for later use;
fifthly: mixing the ingredient I obtained in the step III with the gelling system obtained in the step IV, uniformly stirring, aging for 3.0 hours to obtain an ingredient block, and performing steam curing on the ingredient block for 15 hours at the steam curing temperature of 100 ℃ to obtain an ingredient block II;
sixthly, the method comprises the following steps: calcining the ingredient block II prepared in the fifth step at a constant temperature of 1000 ℃, removing liquid components after calcining for 70-90 minutes, and waiting for cooling or accelerating cooling by adopting other means after calcining to prepare an ingredient block III;
seventh, the method comprises the following steps: grinding the ingredient block III prepared in the step (sixthly) into fine powder, sieving, taking out the fine powder with required mesh number, continuously grinding the remaining unqualified fine powder, and sieving until the screen allowance is less than 5% to obtain an ingredient II;
and (v): grinding the mixture II prepared in the step II into fine powder, sieving, taking out the fine powder with required meshes, continuously grinding the remaining unqualified fine powder, and sieving until the screen allowance is less than 5% to obtain a third ingredient;
ninthly: and (c) mixing the ingredient II and the ingredient III prepared in the step (c) and mixing according to a ratio of 7:4, uniformly stirring at a rotating speed of 100 revolutions per minute, grinding into fine powder again, sieving, taking out the fine powder with required meshes, continuously grinding the rest unqualified fine powder, and sieving until the sieve residue is less than 5%, thus preparing the marine engineering repair cementing material by taking the modified quartz sand as the raw material.
The three steps can be separated, so that the operation time of the steps is saved, the efficiency is greatly improved, a large amount of cost can be saved, and the economic benefit of an enterprise is improved.
The working principle and the using process of the invention are as follows: firstly, mixing mineral waste residues and coal residues according to a proportion, uniformly stirring to obtain a mixture I, then mixing modified quartz sand and stone powder according to a proportion, uniformly stirring to obtain a mixture II, simultaneously uniformly mixing a magnesium sulfate solution, magnesium oxide and water, stirring, accelerating a chemical reaction to obtain a ternary-integrated gelling system, and refrigerating at a low temperature for later use
Mixing the mixture I with an exciting agent, grinding into fine powder, grading and sieving, taking out the fine powder with the required mesh number, continuously grinding the remaining unqualified fine powder, and sieving until the screen residue is less than 5% to obtain an ingredient I;
mixing the first ingredient with the gelling system, stirring uniformly, aging for a period of time to obtain an ingredient block, performing steam curing on the ingredient block for a period of time to obtain a second ingredient block, calcining the second ingredient block at a constant temperature to remove liquid components, and waiting for cooling or performing accelerated cooling by adopting other means after calcining to obtain a third ingredient block;
grinding the material block III in the step into fine powder, sieving the fine powder, taking out the fine powder with the required mesh number, continuously grinding the remaining unqualified materials, and sieving the fine powder until the screen allowance is less than 5% to obtain a material block II, simultaneously grinding the material block II into fine powder, sieving the fine powder, taking out the fine powder with the required mesh number, continuously grinding the remaining unqualified materials, and sieving the fine powder until the screen allowance is less than 5% to obtain a material block III;
and finally, mixing the second ingredient and the third ingredient, uniformly stirring, grinding into fine powder again, sieving, taking out the fine powder with the required mesh number, continuously grinding the remaining unqualified fine powder, and sieving until the screen allowance is less than 5%, thus preparing the oceanographic engineering repair cementing material by taking the modified quartz sand as the raw material.
Experimental data:
according to experimental data, the adding proportion of the modified quartz sand is 30-40, and the strength of the stone powder mixture is highest between 40-55.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. A modified quartz sand is used as a raw material to prepare a cementing material for ocean engineering repair and a preparation method thereof, and the cementing material comprises mineral waste residue, coal slag, stone powder, modified quartz sand, magnesium sulfate solution, magnesium oxide, water and an exciting agent, and is characterized in that the mineral waste residue and the coal slag are mixed in advance to form a first mixture, the modified quartz sand and the stone powder are mixed to form a second mixture, the magnesium sulfate, the magnesium oxide and the water participate in a reaction to form a cementing system, and the exciting agent is one or a mixture of alkali metal hydroxide and alkali metal carbonate;
removing impurities from quartz sand, drying, immersing the quartz sand in liquid nitrogen for 5-6 minutes, taking out, preheating to 70-85 ℃, placing in a sand mixer, adding a quartz sand surface modifier, and mixing for 50-70 seconds to obtain modified quartz sand;
the quartz sand surface modifier comprises the following components in percentage by mass: 3.5-5% of carboxymethyl cellulose, 1.2-2% of calcium dodecyl sulfonate, 0.6-1% of coupling agent and the balance of water;
the method comprises the following steps:
the method comprises the following steps: mixing mineral waste residues and coal slag according to a ratio, and uniformly stirring to obtain a mixture I;
secondly, the step of: mixing the modified quartz sand and the stone powder according to a proportion, and uniformly stirring to obtain a mixture II;
③: mixing the mixture I obtained in the step I with an exciting agent, grinding into fine powder, grading and sieving, taking out the fine powder with the required mesh number, continuously grinding the remaining unqualified fine powder, and sieving until the screen residue is less than 5% to obtain an ingredient I;
fourthly, the method comprises the following steps: uniformly mixing the magnesium sulfate solution, magnesium oxide and water, stirring, accelerating chemical reaction to obtain a ternary integrated gelling system, and refrigerating at low temperature for later use;
fifthly: mixing the ingredient I obtained in the step III with the gelling system obtained in the step IV, uniformly stirring, aging for a period of time to obtain an ingredient block, and performing steam curing on the ingredient block for a period of time to obtain an ingredient block II;
sixthly, the method comprises the following steps: calcining the ingredient block II prepared in the fifth step at a constant temperature to remove liquid components, and waiting for cooling after calcining or performing accelerated cooling by adopting other means to prepare an ingredient block III;
seventh, the method comprises the following steps: grinding the ingredient block III prepared in the step (sixthly) into fine powder, sieving, taking out the fine powder with required mesh number, continuously grinding the remaining unqualified fine powder, and sieving until the screen allowance is less than 5% to obtain an ingredient II;
and (v): grinding the mixture II prepared in the step II into fine powder, sieving, taking out the fine powder with required meshes, continuously grinding the remaining unqualified fine powder, and sieving until the screen allowance is less than 5% to obtain a third ingredient;
ninthly: and (c) mixing the ingredient II and the ingredient III prepared in the step (c) and the step (b), uniformly stirring, grinding into fine powder again, sieving, taking out the fine powder with the required mesh number, continuously grinding the rest unqualified fine powder, and sieving until the sieve residue is less than 5%, thus preparing the oceanographic engineering repair binding material by using the modified quartz sand as the raw material.
2. The oceanographic engineering repair cementing material prepared by taking the modified quartz sand as the raw material and the preparation method thereof as claimed in claim 1, wherein the ratio of the mineral waste residue to the coal slag in the step (i) is 1-3:5-10, and the main component of the mineral waste residue is silicate.
3. The oceanographic engineering repair binding material prepared by taking the modified quartz sand as the raw material and the preparation method of the oceanographic engineering repair binding material according to claim 1 are characterized in that the ratio of the modified quartz sand to the stone powder in the step (II) is 2-5: 5-10.
4. The marine engineering repairing cementitious material prepared by taking the modified quartz sand as the raw material and the preparation method of the marine engineering repairing cementitious material according to claim 1, wherein the ratio of the exciting agent to the first mixed material in the step (iii) is 0.1-0.3:1-3, and when the exciting agent is mixed for use, the ratio of the alkali metal hydroxide to the alkali metal carbonate is 1-3: 4-5.
5. The oceanographic engineering repair gelled material prepared by taking the modified quartz sand as the raw material and the preparation method thereof as claimed in claim 1, wherein the gelled system prepared in the step (iv) contains magnesium hydroxide gelled body generated by magnesium oxide, and magnesium sulfate provides enough sulfate radicals to improve the gelled strength.
6. The method for preparing oceanographic engineering repair cementing material using modified quartz sand as raw material according to claim 1, wherein the aging time is 1.5-3.0 hours, the steam curing temperature is 90-100 ℃, and the curing time is 9-15 hours.
7. The method for preparing the cementing material for ocean engineering repair by using the modified quartz sand as the raw material as claimed in claim 1, wherein the calcination temperature in the step (c) is 750-1000 ℃ and the calcination time is 20-90 minutes.
8. The marine engineering repair cementing material prepared by using the modified quartz sand as the raw material and the preparation method thereof as claimed in claim 1, wherein the mixing ratio of the ingredient II and the ingredient III prepared in the step (c) and the step (b) is 6-7:2.5-4, and the ground fine powder is uniformly mixed.
9. The method for preparing the oceanographic engineering repair cementing material by using the modified quartz sand as the raw material as claimed in claim 1, wherein the step I, the step II and the step IV are in parallel relationship and can be carried out simultaneously to improve the efficiency.
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| 中国菱镁行业协会组: "《镁质胶凝材料及制品技术》", 31 January 2016, 中国建材工业出版社 * |
| 廖国胜、曾三海: "《土木工程材料》", 31 January 2018, 冶金工业出版社 * |
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