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2. Used for sulfate erosion or (and) steel bar corrosion requirements of ordinary Portland cement concrete, can be used for environmental erosion of seaports, water conservancy, sewage, underground, tunnels, water diversion, roads, Bridges, industrial and civil building foundation and other projects.
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RMA concrete anti-corrosion preservative is a new product carefully improved according to the industry standard JC/T1011-2021 "Concrete Anti-corrosion preservative" prepared by our company. The technical route breaks through the traditional idea of concrete sulfate corrosion resistance, and solves the sulfate corrosion resistance under the condition of ordinary Portland cement by improving the performance of concrete itself. This product is a series of corrosion and water resistant agents for Marine concrete in our institute. It is also a high-performance preservative composed of surfactants, active inorganic salts, organic additives and carriers. It has various functions such as rust resistance, waterproof, water reduction and impermeability, etc. It can improve the internal structure of concrete body and change the hydration products of ordinary concrete under the design conditions of concrete. Achieve concrete self-waterproofing. The active inorganic material in this product can react chemically similar to the volcanic ash reaction with the large amount of calcium hydroxide released during the hydration process of cement. The unstable or metastable state substances such as high-alkaline calcium aluminate are transformed into stable substances, making the cement stone more homogeneous and dense, effectively resisting the effect of environmental corrosive substances on concrete erosion, and avoiding the destruction of concrete by sulfuric acid and other media. At the same time, it can guarantee the development of concrete strength. Since most concrete is reinforced concrete, it is necessary to solve the problem of steel corrosion while solving sulfate corrosion. At this time, the organic active components in the product play their magic effect, which can migrate around the most dense concrete matrix and find the steel bar inside, and form a dense anti-corrosion and anti-rust film on its surface, so as to achieve incredible anti-corrosion and anti-rust effect. Therefore, the use of this product can solve the coagulation at the same time: the sulfate-resistant corrosion and steel corrosion, is a veritable ideal preservative for reinforced concrete.
1. The composite use of the product with the admixture can save the cost of concrete and greatly improve the erosion resistance of concrete. The ultimate concentration (K value) of sulfate resistance of ordinary cement concrete is increased to 10000~15000mg/l, which is 4~6 times higher than that of ordinary sulfate resistant cement.
2. The product also has the effect of preventing steel corrosion, improving freeze-thaw resistance, improving impermeability and increasing strength.
3. The product has low dosage and obvious effect. It is a non-toxic, tasteless green building material product.
4. Physical and chemical properties (executive standard: JC/T1011-2021)
Corrosion antiseptic physical and chemical properties requirements:
|
Item |
Standard index |
|
|
Magnesium oxide /% |
≤5.0 |
|
|
Chloride ion /% |
≤0.05 |
|
|
Specific surface area/(m2/kg) |
≥300 |
|
|
Setting time |
Initial setting /min |
≥45 |
|
Final setting /min |
≤600 |
|
|
Compressive strength ratio /% |
7d |
≥90 |
|
28d |
28d≥100 |
|
|
Expansion rate /% |
1d |
≥0.05 |
|
28d |
≤0.60 |
|
|
Corrosion resistance factor (K) |
≥0.90 |
|
|
Coefficient of expansion (E) |
≤1.50 |
|
|
Chloride ion diffusion coefficient ratio |
≤0.85 |
|
1. The product is mainly used in the following environment: a certain concentration of SO24-, CI-, HCO3-, CO2, NH4-, Mg2+ and other salts, pantothenic acid groundwater, surface water, seawater, sewage and saline soil, soluble rock salt and other corrosive substances to the erosion of mortar or concrete.
2. Used for sulfate erosion or (and) steel bar corrosion requirements of ordinary Portland cement concrete, can be used for environmental erosion of seaports, water conservancy, sewage, underground, tunnels, water diversion, roads, Bridges, industrial and civil building foundation and other projects.
The dosage is 6~8% of the weight of the cement material (the weight of the cement material), and the specific dosage should be determined according to the different requirements of the concrete performance and the application environment.
Packed with woven bags lined with plastic bags, each bag with a net weight of 50 kg, should be protected from damage and moisture during transportation and storage.
1. The product is non-combustible, non-toxic and non-dangerous, but it should not be imported.
2. Preparation of pumped concrete, fluid concrete, this agent can be combined with all kinds of water reducing agent.
