Cement-based infiltration crystal is a non-toxic, environmentally friendly, gray powdery high-tech product that can breathe and penetrate activated substances. It is a powdery rigid waterproof material made of special cement quartz sand as the base material and infiltrated with a variety of active chemicals. Its main component is Portland cement, selected quartz sand, special active chemicals, etc. It is a gray powder material. The waterproofing mechanism is to use water as a carrier, guided by water, and with the help of strong permeability, in the micropores and capillaries of concrete. It undergoes transmission and filling, undergoes physical and chemical reactions, and forms dendrite-like crystals that are insoluble in water. The crystal and concrete structure are combined into a closed waterproof layer to block water flow and other liquid erosion from any direction. It achieves the purpose of permanent waterproofing and chemical corrosion resistance, and at the same time protects steel bars and enhances the strength of concrete structures. Performance Characteristics of Cement-based Penetrating Crystallization Products
It has extremely strong water pressure resistance. It can withstand strong water pressure for a long time. Apply two layers of this material on thick concrete specimens with compressive strength of 100%, which can at least withstand water pressure.
Has unique self-healing ability. This product is an inorganic waterproof material. The crystals formed will not age. The crystal structure can still activate cement to produce new crystals when exposed to water many years later. The crystals will continue to be densely sealed or re-sealed. Smaller than cracks or pores, completing the self-healing process.
It has the function of anti-corrosion and anti-aging protective steel bars, which can self-repair cracks and gaps under the penetrating crystallization, making the concrete structure more dense and increasing the structural strength, thereby minimizing the intrusion of chemical substances, ions and moisture, and protecting Steel bars are protected from rust. Crystals do not affect the breathing ability of concrete, and can maintain normal ventilation, moisture removal, and dryness inside the concrete. On the basis of keeping the inside of the concrete structure from being corroded, it extends the service life of the building. At the same time, the concrete structure treated with this material also effectively prevents spalling, weathering and damage caused by freezing and thawing.
It has a reinforcing effect on the concrete structure. After the concrete structure is constructed with this product, the unhydrated cement is activated and the density is enhanced, which strengthens the concrete structure and generally improves the strength of the concrete.
It has a long-term waterproofing effect. The physical and chemical reaction it produces is initially on the surface of the base surface or adjacent parts, and gradually affects the interior of the structure and penetrates over time. Under normal temperatures, usually after 10 days, the active compound can make the penetrating crystals penetrate deep into the concrete layer structure. The density of the concrete layer structure is sparse, and the penetration depth will be deeper. The formed crystals have stable properties and do not decompose. Even if the waterproof coating is worn or scraped off, the waterproofing effect will not be affected because its active ingredients have penetrated deeply into the concrete structure.
Scope of application of cement-based penetrating crystallization
This product is mainly used for waterproofing construction on the surface of concrete structures, plugging construction of structural cracks and seepage holes, and waterproofing and plugging of underground diaphragm walls, tunnels, culverts, reservoirs and dams in subway stations. Waterproof construction of all cement-based surfaces of concrete construction facilities in industrial and civil basement roofs, toilets and bathrooms.
Construction method of cement-based infiltration crystallization
Brushing method: First, mix the cement-based infiltration crystal waterproofing material and clean water according to the mass ratio using a machine, stir evenly to form a viscous consistency, and then apply the prepared coating Apply in two coats to the prepared and pre-wetted concrete surface. Apply the second coat while the first coat is still damp.
The scraping method is the same as above. Apply the prepared paint evenly in two passes.
When the poured concrete is initially set, sprinkle the cement-based penetrating crystalline waterproof material evenly on the concrete surface, and then use a wooden trowel or polisher to perform calendering treatment.
Dosage
The coating dosage should be greater than the thickness of the coating.
Cement-based penetrating crystalline waterproof coating masterbatch precautions
Do not let the slurry sit outdoors, such as in the sun, when the humidity is low. Get rid of it. If it is dry, spray water immediately.
The best method for large areas is to do it in separate areas, and do not adjust the slurry too much.
This method is suitable for all repairs, including repairing cracks, thickening and cracking in large areas.
Cement-based penetrating crystallization