Anti-crack compacting agent waterproofing agent is a new generation of special concrete material. It is composed of a variety of inorganic salts rich in cement activity and strengthening ingredients. It has been synthesized through scientific and technological processes. Made up of. Making full use of the physical and chemical change mechanisms during the solidification process of cement mortar and concrete, chemically synthesized powders can prevent cracking and cracking from both physical and chemical aspects, which can significantly improve the compactness of cement mortar and concrete. Its technical effect is to significantly improve the impermeability, reduce shrinkage, and prevent cracking. It can effectively prevent the penetration of water molecules, significantly improve the strength of concrete, and improve the durability of concrete.
Anti-crack compacting agent waterproofing agent is easily soluble in water. After stirring, it is evenly distributed in the concrete and chemically reacts with cement hydration precipitates to form crystals and Gel reduces the volume shrinkage of concrete and improves the crack resistance of concrete, especially the crack resistance of large-volume concrete. At the same time, during the growth process, the gel fills and blocks the pores in the cement stone, cutting off the connection of capillary pipes, making the porosity inside the concrete smaller, and improving the compactness and impermeability.
1. Product features
1. Improve the crack resistance and permeability of cement products properties and durability, fully improving long-term strength.
2. It has the functions of crack resistance, density and shrinkage compensation.
3. Water-resistant, oil-resistant, alkali-resistant, acid-resistant, high-temperature-resistant, low-temperature-resistant, and oxidation-resistant.
4. No anti-corrosion or rust on steel bars.
5. Non-toxic, odorless, pollution-free and green and environmentally friendly.
2. Scope of application
1. Railway bridges, tunnels, overpasses, industrial plants, Residential civil buildings, water storage tanks, water towers, roads, airport buildings and other high-end projects.
2. Crack-resistant and waterproof concrete used in tunnel linings, culvert frame structures, buildings and underground waterproofing projects.
3. Concrete caps, bridge piers, slag-free track cast-in-place concrete track bed slabs, concrete bases and other projects.
4. Waterproofing projects for roofs, floors, walls, kitchens, bathrooms, basements and other industrial and civil buildings.
5. Moisture-proof and waterproof projects for various pools, swimming pools, underground warehouses, civil air defense projects, subways, tunnels and other buildings.
3. Technical performance
1. Technical standard: JC474-2008;
2. Low shrinkage: the mixture will not shrink and settle, and the anti-cracking agent can absorb internal stress and improve crack resistance;
3. Crack resistance: The anti-crack compacting agent is easily dispersed in the mortar to form a three-dimensional spatial structure, which effectively improves the phenomenon of poor hardening and cracking caused by excessive drying of concrete and insufficient moisture;
4. Impermeability: When used to configure waterproof and impermeable concrete, the impermeability grade can be improved to S8-18 or above;
5. Operability: Because the anti-crack densification agent has a slump-preserving effect, it reduces the frictional resistance of pumped concrete; anti-crack densification can increase the plasticity of concrete, improve construction operability, and improve work efficiency;
6. Compactness: It can reduce the porosity inside the concrete by more than 40% and effectively reduce the number of capillary pores and macropores; dosage: 6~8%;
4. Construction technology
1. Add directly to the mortar or concrete mixer, the mixing time is Normal mixing is extended for 30 to 60 seconds, which is counted as 2 and a half minutes or 3 minutes. If manual mixing is required, the mixture must be evenly mixed;
2. Concrete mix proportion design and ordinary The concrete is the same, but the cement dosage should not be less than 300kg/m3;
3. Use fresh but not expired wafer salt or ordinary wafer salt cement. The cement activity , good stability, cement grade is generally P.032.5 or P.042.5;
4. Sand and quartz grade are good, contain little mud and comply with relevant regulations ;
5. The concrete should be vibrated and compacted without sliding vibration or strong vibration. The concrete and mortar should be compacted and compacted. Fine stone concrete should be used in the house. The small plate is vibrated and compacted;
6. Mortar or concrete should be covered with wet straw bags in time to strengthen moist curing. The general curing time is not less than 7~ For 14 days, concrete curing agent can also be used for curing. </p
微信扫一扫打赏
