Cement pavement repair material is a multi-component polymer material composed of composite special cement clinker, polymer resin, ultra wear-resistant aggregate, etc. This product has simple construction, high strength, and good toughness, and is an ideal material for modern concrete cement pavement repair.

H60 grouting material CGM grouting material manufacturer Qingdao Laixi equipment foundation grouting material

Application scope:
Mainly used for repairing concrete roads and factory cement floors, treating cement pavement peeling, sanding, freeze-thaw, salt erosion, exposed stones, honeycombs, and rough surfaces. This product is widely used for rapid repair of concrete in bridges, docks, water conservancy, high-speed rail, nuclear power, large-scale municipal engineering, and other fields.

Product Features:
1. High intensity.
2. Rapid strength growth: Standard maintenance state: The strength of the repair material can reach over 20Mpa after one day, and it can be opened to traffic in 2-4 hours under normal weather conditions.
3. Waterproof and anti-seepage performance superior to concrete: After pouring cracks with early strength repair materials, the micro expansion function of this product can fill and expand the slurry inside the cracks, providing sufficient waterproof and anti-seepage effects.

H60 grouting material CGM grouting material manufacturer Qingdao Laixi equipment foundation grouting material

Perlite is a glassy rock formed by rapid cooling of volcanic lava. Perlite ore includes perlite, obsidian, and turpentine. The difference in three folds is that perlite has a glassy luster and a more shell like fracture surface, with a water content generally less than 2%. The chemical composition and physical properties of the three types of rocks are basically the same, and they often mix with each other in geology, so they are often collectively referred to as perlite in the process. Perlite ore is yellow white, flesh red, dark green, gray, brown brown, black gray and other colors, mainly gray white light gray. Glass luster or pearl luster, weathered to oil luster, brittle, with a Mohs hardness of 5.5-7. The fracture surface is uneven, shell like, and fragmented, with white streaks. The fragments and thin edges are transparent or semi transparent, with a fully glass structure and pearl structure.
4. The amount of water added is 16% to 18% of the weight of the repair material, which is 8-9 kilograms of water per bag of material
Construction method:
1. Before use, it is necessary to clean the loose materials and dust on the surface of the repaired concrete, and only when there is no visible water can construction be carried out.
2. When mixing, the repair material should be mixed evenly according to the water consumption provided in the instructions (i.e. 8-9 kilograms of water per bag) before pouring for construction. If the pouring area and volume are too large, a small amount of fine stones or large sand can be added to reduce concentrated exothermic reactions. Pour the mixed slurry into the area that needs to be repaired, compact and smooth it, and cover it with plastic film and water it for curing in a timely manner after the repair slurry has finally set. In winter, it is necessary to cover it with cotton felt for insulation protection.

But there should be no visible water on the base layer after wetting. When preparing flexible putty, in a clean container, first add an appropriate amount of water and then gradually pour in dry putty powder. While pouring, stir until the consistency is suitable. After the putty is evenly mixed, let it sit for about 1 minute, and then stir again before scraping; The mixed putty should be used up within two hours. When applying putty, the technique should be smooth and not too thick. The thickness should not be less than. 5mm, and the dosage is about 5 grams. After the putty surface dries (about 4 hours), 4-6 grit sandpaper should be used to polish it flat, and the polishing time should not exceed 8 hours after scraping; Scrape the second coat of putty. If there are any uneven areas, they can be polished after 4 hours, and should not exceed 8 hours after scraping. The difference in time between the two coats should not be less than 4 hours. Generally, the two coats of putty should be successful.
3. Road opening hours: Depending on the customer's design intensity and construction season, the fast opening hours are 2-8 hours.
Attention: This product is packaged in 50kg/bag (kraft paper composite bag)
Storage conditions: Dry environment for 12 months without affecting use

In summary, the evaluation committee believes that this technology has reached an advanced level and agrees that it can be promoted and applied in building curtain wall engineering through evaluation. Technical features? Composite a high-strength fiber safety composite layer on the back of natural stone, which increases the strength and safety of the stone curtain wall panel;? Embedding a dedicated back groove anchor on the back of the stone increases the reliability of the anchor point due to its larger contact area with the stone. Compared with existing cantilever type (short groove type) and back bolt type, the comprehensive stress performance is significantly improved due to its doubled stress area. The back groove anchor has the following three characteristics: it adopts a special connection method: the principle of combining mechanical embedding and chemical embedding can be connected to any type of keel with three-dimensional adjustability? The entire curtain wall system adopts a fully bolted connection method, which is easy to disassemble and replace.