Special for reinforcement and repair of concrete structures (high-strength mortar)
Contact:u0026nbsp;13925840771u0026nbsp;Manager Zhang
u0026nbsp;1. Composition and characteristics
Polymer mortar (high-strength repair mortar) for reinforcement of concrete structures is one A two-component cement-based composite material modified by polymer emulsion is mainly composed of high-strength cement, polymer emulsion, mineral admixture, anti-cracking fiber, cement superplasticizer, aggregate and so on. Conforms to the technical requirements of JG/T289 'Polymer mortar for reinforcement of concrete structures', used for maintenance, repair and reinforcement of concrete structures, and also complies with GB50728 'Technical Specification for Safety Appraisal of Engineering Structure Reinforcement Materials' Class I polymer mortar skills requirement.
The main features are:
◇ Super high strength, super strong bonding;
◇ no shrinkage, anti-cracking;< br/>◇ High durability, impermeability, waterproof, rust and corrosion resistance, carbonization resistance;
◇ The surface has good construction performance, does not fall, and does not need a mold;
◇ High strength, resistance to abrasion;
< /span>◇ Easy to use, the two components can be mixed directly according to the recommended mixing ratio.
二. Main use:
high-strength (prestressed) concrete surface defects, honeycombs, etc. Plastering repair; shallow concrete surface (such as fire) plastering repair; concrete erosion and peeling Drop, exposed reinforcement repair; concrete anti-carbonization, anti-corrosion repair; u0026nbsp;(prestressed) steel wire rope mesh reinforcement construction; high-strength, erosion-resistant polymer mortar; anchor steel or bolts in humid or high temperature environments.
three. Main performance:
< span style='padding: 0px; margin: 0px; text-align: left; transition: all 0.2s linear 0s; font-family: Song Ti; font-size: 18px;'>Engineering application-concrete defect repair
4.1 Applicable scope:
Surface repair of ordinary concrete and high-strength (prestressed) concrete in bridges, roads, hydraulics, railways, housing constructions and other projects.
3 Usage and precautions
< strong style='padding: 0px; margin: 0px; text-align: left;'>1. High-strength mortar, when used for ordinary-strength concrete repair, its strength has a large margin; when used for high-strength concrete repair, ensure that the A and B components are measured accurately. Containing chemical additives, it takes a certain time to dissolve and function, and its properties will change with the mixing time and mixing method.
2. Mechanical mixing must be used. According to the amount of mixing, self-made rubber mixer or mortar can be used The mixer performs mechanical mixing. Due to the addition of polymer emulsion, the mortar that has just been stirred generally contains a lot of air. It is best to let it stand for about 5 minutes until its properties are stable before proceeding.
3. In order to ensure good adhesion to the substrate, the surface of the substrate should be clean and as far as possible It is in the state of saturated surface and dry water (completely absorbs water and is saturated but has no clear water on the surface).
4. High-strength mortar should pay attention to strengthening early maintenance. After the mortar is finally set, it can be watered or covered for curing, and the wet curing time is generally no less than 7 days.
5. Depending on the construction temperature, the mixed mortar should generally be used up within 1 hour. The mortar that has been initially set shall not be mixed with water for use. This product must not be mixed with other cement, admixtures and other materials.
6. The environment temperature of mortar construction should be 5-40℃, when the construction environment temperature is lower than At 5°C, heat preservation measures should be taken.
7. For other outstanding matters, please refer to the relevant national technical specifications or obtain them from Gutebond Technical Support.
五. Packaging, transportation, storage, safety
A (solid powder) plastic lined woven bag with a net weight of 50kg; B (liquid emulsion) is packed in a 20L plastic bucket.
This product should be stored in a dry, clean warehouse, pay attention to moisture. Do not store in the open, let alone Get rain or damage the packaging. Since the date of production, the packaging is complete
Hershey's effective storage period is 6 months. It can be used after expiration or agglomeration after testing.
This product is not flammable, explosive, toxic and dangerous. It can be transported by ordinary means of transportation. The packaging must not be damaged, damp or rained during transportation.
