Concrete corrosion inhibiting admixture-4ZX
Characteristics and instructions：
Concrete corrosion inhibiting admixture-4ZX is developed and promoted by the CAS Guangzhou Chemical Co., Ltd. , with good market prospects. The product is an ideal material for steel surface progenitor show effect, good stability, non-hierarchical, no precipitation; and the rust long time after use can prevent the formation of rust steel surface again, the rust inhibitor phosphate-free agents, not nitrite containing harmful to humans and the environment, ease of handling waste rust inhibitor emissions to meet environmental requirements.
The product between the step and the steel and non-ferrous metals and a variety of long-term anti-rust treatment. In addition, the product on the metal surface passivation film, and can replace conventional pre-coated metal phosphate treatment step to address heavy metals, nitrite, phosphate and other emissions pollution problem fundamentally.
The product is non-toxic material, do not pollute the environment, the equipment non-polluting, non-corrosive; safe and reliable.
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Test items
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Technical Specifications
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Test results
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Individual judgment
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Salt water immersion test
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No corrosion of steel reinforcing bars
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No corrosion of steel reinforcing bars
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Qualified
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Potential 0-250mv
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Potential-182-177mv
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Electrochemical synthesis experiments
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Current is less than 150μA
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Current 74μA
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Qualified
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The difference of setting time(min)
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The initial setting
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-120～+120
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+30
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Qualified
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The final setting
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-120～+120
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+25
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Compressive strength ratio (the test specimen and the reference specimen%)
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7d
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≥90
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115
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Qualified
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28d
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≥90
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109
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Performance characteristics:
1.this product is a composite of rust resistance, protective film thickness of 100-1000Å, with good rust resistance ability;
2. can be adsorbed on the metal surface to form a dense passivation layer, inhibiting the activation of chloride ions, effectively inhibit the corrosion of metals;
3. Do not change the wet concrete of various properties, such as reaction temperature, fixed rate, slump and the like;
4. does not affect the performance of a variety of dry concrete business, such as strength, permeability, pH, porosity and other content;
5. Good compatibility with various types of cement and concrete admixtures, not because of differences in amount and aggravate corrosion;6. The concrete does not affect the original gas content.
Application:
1. General industrial buildings, bridges, roads;
2. Marine Environment: Seaport, roads, bridges, rails, pipes and other underground concrete structures;
3. A number of chlorinated materials as aggregate concrete;
4. used to repair and reinforcement has been corroded reinforced concrete structures.
Application method
1. This product with cement, aggregates simultaneously into the mixer and dry mix, stir and then stirred, stirring until evenly;
2. When used with other admixtures composite, concrete should do first test match to determine their suitability;
3. Slightly corrosive environments in general industrial buildings, bridges, etc.,dosage recommendations 4-8kg / m3; harbor engineering, coastal construction and other severe corrosive environment, recommended dosage recommendations 8-12kg / m3;
4. The optimal amount can be determined by field trials.
Notice
1. Generally use the dry mixing method, mixing can also be dissolved in water, must mix can be appropriately extended mixing time;
2. This product has a little water reduction effect, while maintaining the original flow of water can be reduced appropriately;
3. The construction should be careful to check the accuracy of measurement;
Package and transportation：
1. This product is non-toxic non flammable, can be in accordance with the general cargo transport, also can according to user requirements, taking the other way of packing;
2. The product should be stored in a cool place, valid for one year, expired after passing the test can continue to use concrete. This product should be stored in clean containers to prevent foreign matter.
