CN114605104A - Novel chloride ion-resistant concrete pumping agent in marine environment - Google Patents
Novel chloride ion-resistant concrete pumping agent in marine environment Download PDFInfo
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- CN114605104A CN114605104A CN202210147775.6A CN202210147775A CN114605104A CN 114605104 A CN114605104 A CN 114605104A CN 202210147775 A CN202210147775 A CN 202210147775A CN 114605104 A CN114605104 A CN 114605104A
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/304—Air-entrainers
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/44—Thickening, gelling or viscosity increasing agents
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/46—Water-loss or fluid-loss reducers, hygroscopic or hydrophilic agents, water retention agents
- C04B2103/465—Water-sorbing agents, hygroscopic or hydrophilic agents
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/61—Corrosion inhibitors
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/65—Water proofers or repellants
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a novel marine environment chlorine ion-resistant concrete pumping agent which comprises the following components in percentage by mass: 7.5 to 9.8 percent of polycarboxylic acid mother liquor high-efficiency water reducing agent, 4.5 to 5.5 percent of acrylate slump retaining agent, 0.6 to 0.9 percent of common water reducing agent, 3.4 to 4.8 percent of set adjusting agent, 0.025 to 0.05 percent of water retaining agent, 1.75 to 2.45 percent of reinforcing agent, 0.5 to 0.65 percent of dispersing agent, 0.055 to 0.08 percent of rust inhibitor, 0.0025 to 0.0038 percent of penetrating agent, 1.1 to 1.3 percent of water repellent, 0.025 to 0.038 percent of defoaming agent and 0.01 to 0.02 percent of air entraining agent. The pumping aid is suitable for being doped into concrete, so that the doping amount of an admixture is increased, the using amount of cement is reduced, the cost of the concrete is reduced, the strength of the concrete is improved, and the chloride ion permeation and corrosion resistance of the concrete is enhanced.
Description
Technical Field
The invention relates to a novel chloride ion-resistant concrete pumping agent for a marine environment.
Background
The concrete structure of ocean engineering is acted by various factors such as seawater, sea tide, typhoon and the like in the ocean environment, usually marine concrete special for the ocean environment, also called ocean concrete, is adopted, the defects are that the cost of the marine concrete is high, most of the marine concrete is prepared by mixing sea sand and seawater, the concrete contains high chloride, and the concrete prepared by common additives has the defects that steel bars are easy to corrode and the chloride ion corrosion resistance in the ocean environment is weak.
Disclosure of Invention
The invention aims to provide a pumping aid for improving the chloride ion corrosion resistance of concrete in a marine environment, and also aims to provide a chloride ion resistance additive component and a proportion thereof. Therefore, the novel marine environment chlorine ion resistant concrete pumping agent comprises the following components in percentage by mass: 7.5 to 9.8 percent of polycarboxylic acid mother liquor high-efficiency water reducing agent, 4.5 to 5.5 percent of acrylate slump retaining agent, 0.6 to 0.9 percent of common water reducing agent, 3.4 to 4.8 percent of set adjusting agent, 0.025 to 0.05 percent of water retaining agent, 1.75 to 2.45 percent of reinforcing agent, 0.5 to 0.65 percent of dispersing agent, 0.055 to 0.08 percent of rust inhibitor, 0.0025 to 0.0038 percent of penetrating agent, 1.1 to 1.3 percent of water repellent, 0.025 to 0.038 percent of defoaming agent and 0.01 to 0.02 percent of air entraining agent.
Further, the enhancers include triisopropanolamine, triethanol amine, and diethanol monoisopropanolamine.
Further, the rust inhibitor comprises thiourea, sodium molybdate, disodium hydrogen phosphate and sodium nitrite.
Further, the penetrating agent comprises fatty alcohol-polyoxyethylene ether or fluorocarbon surfactant.
Further, the common water reducing agent is wood calcium or wood sodium or molasses or a combination thereof.
Further, the coagulation regulator is hydroxyethylidene diphosphate, sucrose or sodium tripolyphosphate or a combination of the hydroxyethylidene diphosphate, the sucrose and the sodium tripolyphosphate.
Further, the water-retaining agent is cellulose ether, xanthan gum or polyacrylamide, or a combination thereof.
Further, the diffusant is NNO or MF, or a combination thereof.
Further, the water repellent is methyl potassium silicate or methyl sodium silicate, or a combination thereof.
Further, the defoaming agent is an organic silicon defoaming agent or a P803 defoaming agent, or a combination thereof.
Further, the air entraining agent is sodium dodecyl benzene sulfonate or sodium dodecyl benzene sulfate or a combination thereof.
The invention has the beneficial effects that:
(1) the pumping aid is added, the dispersing agent disperses cement particles, the mixing amount of the admixture is increased, the reinforcing agent can excite the activity of the admixture, the strength of concrete is increased, under the condition of increasing the mixing amount of the admixture, the strength of the concrete is basically unchanged, mineral powder in the admixture is an effective component for reducing the diffusion of chloride ions, the mixing amount of the admixture is increased, the chloride ion permeation resistance can be increased, meanwhile, the defoaming agent and the air entraining agent can eliminate gas and bubbles in the concrete, the compactness of the concrete is increased, the strength of the concrete is increased, the chloride ion permeation resistance is increased, the pumping aid can permeate into the concrete, under the comprehensive action of the pumping aid, various components and contents are matched with each other, the chloride ion permeation resistance can be increased by 50% -80%, the cement using amount is reduced, the cost of the concrete is reduced, and the pumping aid is easy to pump.
(2) The rust inhibitor in the pumping aid can improve the rust prevention effect of steel bars in concrete and the durability of the concrete in marine environment.
Drawings
The proportion and the detection result of the embodiment and the comparative example are shown in figure 1.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, characteristics and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
The invention relates to a novel marine environment chlorine ion-resistant concrete pumping agent, which comprises the following components in percentage by mass based on the total mass of the pumping agent: 7.5 to 9.8 percent of polycarboxylic acid mother liquor high-efficiency water reducing agent, 4.5 to 5.5 percent of acrylate slump retaining agent, 0.6 to 0.9 percent of common water reducing agent, 3.4 to 4.8 percent of set adjusting agent, 0.025 to 0.05 percent of water retaining agent, 1.75 to 2.45 percent of reinforcing agent, 0.5 to 0.65 percent of dispersing agent, 0.055 to 0.08 percent of rust inhibitor, 0.0025 to 0.0038 percent of penetrating agent, 1.1 to 1.3 percent of water repellent, 0.025 to 0.038 percent of defoaming agent, 0.01 to 0.02 percent of air entraining agent and the balance of water.
4. The marine environment novel chlorine ion-resistant concrete pumping agent as claimed in claim 3, characterized in that: the penetrating agent comprises fatty alcohol-polyoxyethylene ether or fluorocarbon surfactant.
9. The marine environment novel chlorine ion-resistant concrete pumping agent as claimed in claim 8, characterized in that: the water repellent is methyl potassium silicate or methyl sodium silicate, or a combination thereof.
In the embodiment, the dispersing agent adopts NNO or MF or a combination of NNO and MF to disperse cement particles and improve the mixing amount of the admixture, and the reinforcing agent, the defoaming agent and the air entraining agent can improve the strength of the concrete and keep the strength of the concrete basically unchanged under the condition of improving the mixing amount of the admixture. The reinforcing agent comprises triisopropanolamine, triethanolamine and diethanolisopropanolamine, and can excite the activity of the admixture and enhance the strength of concrete, the admixture is mineral powder and fly ash, the mineral powder is an effective component for reducing the diffusion coefficient of chloride ions, and the amount of the admixture is increased to improve the chloride ion resistance; the defoaming agent is selected from an organic silicon defoaming agent or a P803 defoaming agent or a composition of the organic silicon defoaming agent and the P803 defoaming agent and is used for eliminating bubbles generated in the manufacturing process of marine concrete, increasing the compactness of the concrete, improving the strength and the chloride ion permeation resistance of the concrete, the air entraining agent is selected from sodium dodecyl benzene sulfonate or sodium dodecyl benzene sulfate or a composition of the sodium dodecyl benzene sulfonate and is used for guiding gas generated in the mixing process of the concrete, reducing the gaps of the concrete, increasing the compactness of the concrete, improving the strength of the concrete, reducing the permeation of chloride ions in seawater and effectively preventing the corrosion of reinforcing steel bars, the rust inhibitor comprises thiourea, sodium molybdate, disodium hydrogen phosphate and sodium nitrite, and the rust inhibitor is used for preventing the chloride ions in the marine environment from permeating and eroding the reinforcing steel bars in a concrete reinforcing steel bar system; the common water reducing agent adopts calcium lignosulfonate, sodium lignosulfonate, molasses or a composition thereof, and the setting regulator adopts hydroxyethylidene diphosphate, sucrose or sodium tripolyphosphate or a composition thereof; the water retention agent adopts cellulose ether, xanthan gum or polyacrylamide or a composition of the cellulose ether, the xanthan gum and the polyacrylamide, and has the functions of water retention, crack resistance and prevention of bleeding and segregation in the pumping process; the water repellent is potassium methyl silicate or sodium methyl silicate or a composition of the potassium methyl silicate and the sodium methyl silicate, and the penetrating agent is fatty alcohol-polyoxyethylene ether or fluorocarbon surfactant, so that the surface tension of the concrete in the concrete mixing process can be reduced, and components in the pumping agent penetrate into the concrete to better play a role. The components in the pumping aid are combined to play a role comprehensively, so that the doping amount of the admixture is increased and the chloride ion permeation resistance is increased by 50-80% under the condition that the strength of concrete is basically unchanged.
The following are specific examples of pumping agents:
example 1: 7.5 percent of polycarboxylic acid mother liquor, 6 percent of acrylate slump retaining agent, 0.6 percent of calcium lignosulfonate, 3.375 percent of hydroxy ethylidene diphosphate, 0.225 percent of cane sugar, 0.375 percent of sodium tripolyphosphate, 0.025 percent of cellulose ether, 1.25 percent of triethanolamine, 0.375 percent of triethanolamine, 0.5 percent of diethanol monoisopropanolamine, 1.125 percent of NNO, 0.025 percent of thiourea, 0.02 percent of sodium molybdate, 0.01 percent of disodium hydrogen phosphate, 0.0025 percent of fatty alcohol polyoxyethylene ether, 1.25 percent of methyl potassium silicate, 0.0375 percent of P803 antifoaming agent, 0.02 percent of sodium dodecyl benzene sulfonate and the balance of water.
Example 2: 8.25 percent of polycarboxylic acid mother liquor, 5.25 percent of acrylate slump retaining agent, 0.75 percent of sodium lignosulfonate, 3.75 percent of hydroxyethylidene diphosphate, 0.3 percent of cane sugar, 0.525 percent of sodium tripolyphosphate, 0.0375 percent of polyacrylamide, 1.125 percent of triethanolamine, 0.5 percent of triethanolamine, 0.375 percent of diethanol monoisopropanolamine, 1.25 percent of MF, 0.03 percent of thiourea, 0.025 percent of sodium molybdate, 0.0125 percent of disodium hydrogen phosphate, 0.00375 percent of fatty alcohol polyoxyethylene ether, 1.125 percent of methyl potassium silicate, 0.025 percent of organosilicon antifoaming agent, 0.02 percent of sodium dodecyl benzene sulfate and the balance of water.
Example 3: the anti-slump agent comprises a polycarboxylic acid mother solution 9%, an acrylate slump retaining agent 4.5%, calcium lignosulfonate 0.9%, hydroxyethylidene diphosphate 3%, sucrose 0.375%, sodium tripolyphosphate 0.225%, polyacrylamide 0.05%, triethanolamine 1.125%, triethanolamine 0.625%, diethanol monoisopropanolamine 0.25%, NNO 1.25%, sodium nitrite 0.035%, sodium molybdate 0.03%, disodium hydrogen phosphate 0.015%, a fluorocarbon surfactant 0.0025%, sodium methylsilicate 1.25%, an organic silicon defoamer 0.0375%, sodium dodecylbenzenesulfonate 0.015%, and the balance of water.
Example 4: 8.25% of polycarboxylic acid mother liquor, 6% of acrylate slump retaining agent, 0.9% of sodium lignosulfonate, 3.75% of hydroxyethylidene diphosphate, 0.3% of cane sugar, 0.225% of sodium tripolyphosphate, 0.0375% of polyacrylamide, 1.125% of triethanolamine, 0.5% of triethanolamine, 0.375% of diethanol monoisopropanolamine, 1.25% of NNO, 0.035% of sodium nitrite, 0.025% of sodium molybdate, 0.0125% of disodium hydrogen phosphate, 0.00375% of fatty alcohol polyoxyethylene ether, 1.125% of methyl potassium silicate, 0.025% of an organosilicon antifoaming agent, 0.02% of sodium dodecyl benzene sulfonate and the balance of water.
Example 5: polycarboxylic acid mother liquor 9% acrylate slump retaining agent 5.25% calcium lignosulfonate 0.6%, hydroxyethylidene diphosphate 3%, sucrose 0.225%, sodium tripolyphosphate 0.375%, polyacrylamide 0.05%, triethanolamine 1.25%, triethanolamine 0.625%, diethanol monoisopropanolamine 0.5%, NNO 1.125%, thiourea 0.025%, sodium molybdate 0.03%, disodium hydrogen phosphate 0.015%, fluorocarbon surfactant 0.0025%, sodium methyl silicate 1.25%, organosilicon defoamer 0.0375%, sodium dodecyl benzene sulfonate 0.015%, and the balance of water.
Example 6: 9.75 percent of polycarboxylic acid mother liquor, 4.5 percent of acrylate slump retaining agent, 0.75 percent of calcium lignosulfonate, 3.375 percent of hydroxyethylidene diphosphate, 0.375 percent of cane sugar, 0.525 percent of sodium tripolyphosphate, 0.025 percent of cellulose ether, 1.125 percent of triethanolamine, 0.375 percent of triethanolamine, 0.25 percent of diethanol monoisopropanolamine, 1.125 percent of MF, 0.03 percent of thiourea, 0.02 percent of sodium molybdate, 0.01 percent of disodium hydrogen phosphate, 0.0025 percent of fatty alcohol polyoxyethylene ether, 1.25 percent of methyl potassium silicate, 0.0375 percent of P803 antifoaming agent, 0.02 percent of sodium dodecyl benzene sulfate and the balance of water.
Example 7: polycarboxylic acid mother liquor 9% of acrylate slump retaining agent 6% of calcium lignosulfonate 0.75%, hydroxyethylidene diphosphate 3%, sucrose 0.375%, sodium tripolyphosphate 0.525%, polyacrylamide 0.05%, triethanolamine 1.125%, triethanolamine 0.625%, diethanol monoisopropanolamine 0.25%, NNO 1.125%, thiourea 0.03%, sodium molybdate 0.03%, disodium hydrogen phosphate 0.015%, fatty alcohol polyoxyethylene ether 0.0025%, sodium methylsilicate 1.25%, an organic silicon defoamer 0.0375%, sodium dodecyl benzene sulfonate 0.015% and the balance of water.
Example 8: 9.75 percent of polycarboxylic acid mother liquor, 5.25 percent of acrylate slump retaining agent, 0.9 percent of calcium lignosulfonate, 3.375 percent of hydroxyethylidene diphosphate, 0.3 percent of cane sugar, 0.375 percent of sodium tripolyphosphate, 0.0375 percent of polyacrylamide, 1.125 percent of triethanolamine, 0.375 percent of diethanol monoisopropanolamine, 1.25 percent of MF, 0.035 percent of sodium nitrite, 0.02 percent of sodium molybdate, 0.01 percent of disodium hydrogen phosphate, 0.0025 percent of fluorocarbon surfactant, 1.25 percent of methyl potassium silicate, 0.0375 percent of P803 defoaming agent, 0.02 percent of sodium dodecyl benzene sulfate and the balance of water.
Example 9: 10.5 percent of polycarboxylic acid mother liquor, 4.5 percent of acrylate slump retaining agent, 0.6 percent of sodium lignosulfonate, 3.75 percent of hydroxyethylidene diphosphate, 0.225 percent of cane sugar, 0.225 percent of sodium tripolyphosphate, 0.025 percent of cellulose ether, 1.25 percent of triethanolamine, 0.5 percent of diethanol monoisopropanolamine, 1.125 percent of NNO, 0.025 percent of thiourea, 0.025 percent of sodium molybdate, 0.0125 percent of disodium hydrogen phosphate, 0.00375 percent of fatty alcohol polyoxyethylene ether, 1.125 percent of methyl potassium silicate, 0.025 percent of organosilicon antifoaming agent, 0.02 percent of sodium dodecyl benzene sulfonate, and the balance of water.
The concrete is prepared by C25, C30 and C40, the pumping agents of the above examples 1-9 are added, the cement dosage is reduced, the mixing amount of mineral powder is improved, the strength and the chloride ion diffusion coefficient of the concrete are detected after 28 days of curing, the common marine concrete of common C25, C30 and C40 is prepared, the common pumping agent is added as a comparative example, the strength and the chloride ion diffusion coefficient of the concrete are detected after 28 days of curing, and the proportioning and the detection result are shown in figure 1.
In the figure 1, C25 pump concrete, the novel chlorine ion resistant pumping agent of the embodiment 1 to the embodiment 3 is adopted, the mixing amount is 2.4 percent, the mineral powder dosage is increased by 31kg, the mineral powder dosage is increased by 10 percent, the strength is basically unchanged, and the chlorine ion diffusion coefficient is reduced to 5.012 x 10-12/(m2/s) at the lowest.
C30 pump concrete, adopting the novel anti-chloride ion pumping agent of the embodiment 4 to the embodiment 6, the doping amount is 2.4%, the mineral powder dosage is increased by 49kg, the mineral powder dosage is increased by 12.5%, and the lowest value of the chloride ion diffusion coefficient is greatly reduced to 4.253 x 10 < -12 > (m 2/s).
C40 pump concrete, adopting the novel chlorine ion resistant pumping agent of the embodiment 7 to the embodiment 9, the dosage of the mixed powder is 2.4 percent, the dosage of the mineral powder is increased by 73kg, the dosage of the mineral powder is increased by 15 percent, and the lowest value of the diffusion coefficient of chlorine ions is greatly reduced to 3.061 x 10-12/(m 2/s).
As can be seen from the figure 1, the pumping aid disclosed by the invention can reduce the dosage of cement, improve the mixing amount of mineral powder, reduce the cost, greatly reduce the diffusion coefficient of chloride ions and improve the corrosion resistance in a marine environment under the condition that the strength of concrete is basically unchanged.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A novel marine environment chlorine ion-resistant concrete pumping agent is characterized in that: the pumping agent comprises the following components in percentage by mass:
7.5 to 9.8 percent of polycarboxylic acid mother liquor high-efficiency water reducing agent, 4.5 to 5.5 percent of acrylate slump retaining agent, 0.6 to 0.9 percent of common water reducing agent, 3.4 to 4.8 percent of set adjusting agent, 0.025 to 0.05 percent of water retaining agent, 1.75 to 2.45 percent of reinforcing agent, 0.5 to 0.65 percent of dispersing agent, 0.055 to 0.08 percent of rust inhibitor, 0.0025 to 0.0038 percent of penetrating agent, 1.1 to 1.3 percent of water repellent, 0.025 to 0.038 percent of defoaming agent and 0.01 to 0.02 percent of air entraining agent.
2. The marine environment novel chlorine ion-resistant concrete pumping agent as claimed in claim 1, characterized in that: the enhancer includes triisopropanolamine, triethanolpropamine, and diethanolisopropanolamine.
3. The marine environment novel chlorine ion-resistant concrete pumping agent as claimed in claim 2, characterized in that: the rust inhibitor comprises thiourea, sodium molybdate, disodium hydrogen phosphate and sodium nitrite.
4. The marine environment novel chlorine ion-resistant concrete pumping agent as claimed in claim 3, characterized in that: the penetrating agent comprises fatty alcohol-polyoxyethylene ether or fluorocarbon surfactant.
5. The marine environment novel chlorine ion-resistant concrete pumping agent as claimed in claim 4, characterized in that: the common water reducing agent is wood calcium or wood sodium or molasses or a composition of the wood calcium or wood sodium or molasses.
6. The marine environment novel chlorine ion-resistant concrete pumping agent as claimed in claim 5, characterized in that: the thickening time control agent is hydroxyethylidene diphosphate, sucrose or sodium tripolyphosphate or a combination of the above.
7. The marine environment novel chlorine ion-resistant concrete pumping agent as claimed in claim 6, characterized in that: the water retaining agent is cellulose ether, xanthan gum or polyacrylamide, or a combination thereof.
8. The marine environment novel chlorine ion-resistant concrete pumping agent as claimed in claim 7, characterized in that: the diffusant is NNO or MF or a combination thereof.
9. The marine environment novel chlorine ion-resistant concrete pumping agent as claimed in claim 8, characterized in that: the water repellent is methyl potassium silicate or methyl sodium silicate, or a combination thereof.
10. The marine environment novel chlorine ion-resistant concrete pumping agent as claimed in claim 9, characterized in that: the defoaming agent is an organic silicon defoaming agent or a P803 defoaming agent or a composition thereof, and the air entraining agent is sodium dodecyl benzene sulfonate or sodium dodecyl benzene sulfate or a composition thereof.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403291A (en) * | 2022-06-30 | 2022-11-29 | 武汉三源特种建材有限责任公司 | Harbor concrete corrosion-resistant reinforcing agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403291A (en) * | 2022-06-30 | 2022-11-29 | 武汉三源特种建材有限责任公司 | Harbor concrete corrosion-resistant reinforcing agent and preparation method thereof |
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