Recently, Jiagushi applied for "a durable concrete crack repair structure system", "a free brick maintenance structure for sunken toilet" and "a basement water leakage and lasting waterproof mildew repair structure" three utility model patents passed the review and approved by the State Intellectual Property Office, authorized, patent number is: ZL 2021 2 0091430.4, ZL 2021 2 0867346.7 and ZL 2021 2 0867406.5.

A system of durable concrete crack repair structure

Concrete is currently the most used construction materials, widely used in various construction projects, but in practical use, often appear cracking phenomenon, forming various cracks on the inside and surface.

Once there are cracks in the concrete structure, water, carbon dioxide and harmful corrosion factors will invade, rust the steel bars, resulting in concrete carbonization, acid-alkali corrosion, and then damage the safety of the building structure, greatly reducing the service life of the concrete.

Therefore, the repair of concrete cracks is particularly critical and important, but at present, there are concrete crack repair problems such as single working method, seam width limit, poor durability, leakage, impact and beauty, which can not well solve the problem of concrete crack repair.

This patent proposes a new durable concrete fracture repair structure system, equipped with water-based permeable crystal layer, flexible epoxy grouting material, weather-resistant polyurethane grouting material and quartz sand layer on the concrete structure layer and fracture groove.

The structure system adopts the combination of rigid materials and flexible materials, using inorganic joints and flexible joints, can meet the repair needs of different concrete cracks, complement each other, perfect closed cracks of different sizes, solved the displacement of concrete and waterproof problems, will not cause damage to the original structure, does not affect the overall appearance, construction mode is simple, has good practicability and market prospects.

A tear-free brick repair structure for sunken toilets

In recent years, sunken toilet is widely used in residential buildings, but the thickness of sunken toilet in the existing technology is relatively thin, easy to lead to the seepage of water, waterproof effect is poor. When there are cracks, leakage, the internal landfill layer is all water, it is difficult to find the leakage point.

In view of the above leakage problem, it is usually to cut ceramic tile, landfill layer, do waterproof layer to solve, but the cycle is long, high cost, time-consuming and money, but also affect the normal use.

The utility model patent provides a brick-free maintenance structure for a sinking toilet, setting a cement mortar layer in the gap between the tiles, filled with acrylic slurry, laying water-based epoxy sand above the opening surface of the seam gap, and then brushing the silane interface agent layer and transparent polyyurea waterproof coating layer.

The maintenance structure does not need to smash bricks and re-lay. According to specific occasions to solve problems that general construction cannot be solved. The materials used are rigid and soft, complement each other, effectively adapt to the toilet environment, temperature and deformation stress, saving a lot of space, manpower and cost, safety, environmental protection, lasting protection and simple construction.

A basement of open water leakage and lasting waterproof and mildew-proof repair structure

The basement is surrounded by landfill layers and underground, under the groundwater table pressure for a long time, which is a high risk area of leakage area. When the water pressure is too large, the water will also gush out, increasing the difficulty of maintenance.

In view of the basement leakage problem, the common treatment method is grouting leakage stop and fast dry powder water stop, but the persistence of foaming polyurethane is relatively poor, fast dry powder cannot withstand the large water pressure and can not block the bright water coming out of the gushing.

This patent provides a basement open water leakage and lasting waterproof anti-mildew repair structure to solve the internal cracks by setting grouting hole with grouting. After grouting finishing, concrete patch layer, epoxy adhesive, composite polymer fiber cloth, polymer cement anti-alkali putty layer and thermal insulation coating layer.

The repair structure, from concrete internal grouting to external structure repair, complements each other and completely solves the leakage phenomenon of the basement wall. Not only the overall maintenance structure construction is continuous and simple, but also the reliability, durability and practicability of the maintenance system are greatly increased, which has good technical value and market space.

Up to now, Jiagushi has applied for more than 70 + patents, 37 invention patents, of which 5 have been authorized, and 40 utility model patents (32 have been authorized).In the future, Jiagushi will forge ahead and pay more attention to scientific and technological innovation while forging ahead, so as to realize the transformation of more new technologies, new materials and new technology achievements, and boost the development of the industry to a new level.