A geotextile-sponge self-insulating and moisture-retaining concrete curing blanket

Abstract

This utility model relates to a geotextile-sponge self-insulating and moisture-retaining concrete curing blanket, belonging to the field of concrete curing technology. It includes, from top to bottom, a wear-resistant layer, a heat-insulating and moisture-retaining layer, and an adhesive layer; multiple modular spraying mechanisms are evenly distributed between the heat-insulating and moisture-retaining layer and the adhesive layer; the water inlets of the multiple modular spraying mechanisms are connected through water inlet pipes, and the water outlets of the multiple modular spraying mechanisms are connected through water outlet pipes. This utility model keeps the concrete surface constantly moist, ensuring heat insulation and moisture retention while reducing labor costs and water consumption.

Description

Technical Field

[0001] This utility model relates to the field of concrete curing technology, specifically to a geotextile plus sponge self-insulating and moisture-retaining concrete curing blanket. Background Technology

[0002] During concrete construction, proper curing is crucial. Good curing conditions effectively ensure strength gain, reduce cracking, and improve the strength and durability of concrete. Currently, commonly used concrete curing methods include water curing, covering with plastic film, and using traditional curing blankets.

[0003] Watering for curing requires frequent manual operation, consuming significant manpower and water resources. It's also difficult to keep the concrete surface constantly moist, especially under harsh weather conditions such as high temperatures and strong winds, where rapid evaporation leads to poor curing results. While covering with plastic film can reduce moisture evaporation to some extent, its poor insulation performance fails to provide adequate insulation for concrete in low-temperature environments, potentially hindering strength development and even causing frost damage. Traditional curing blankets, such as simple geotextile blankets, offer some permeability and moisture retention, but their insulation performance is unsatisfactory. Conversely, some curing blankets with insulation properties have relatively weak moisture retention, making it difficult to simultaneously meet the dual requirements of insulation and moisture retention during concrete curing.

[0004] Therefore, there is an urgent need to design a curing blanket that can effectively achieve self-insulating and moisturizing functions and improve the curing effect of concrete. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A geotextile-sponge self-insulating and moisture-retaining concrete curing blanket includes a wear-resistant layer, a heat-insulating and moisture-retaining layer, and an adhesive layer arranged sequentially from top to bottom; multiple modular spraying mechanisms are evenly distributed between the heat-insulating and moisture-retaining layer and the adhesive layer; the water inlet ends of the multiple modular spraying mechanisms are connected through water inlet pipes, and the water outlet ends of the multiple modular spraying mechanisms are connected through water outlet pipes.

[0007] Furthermore, it also includes a control module, which is connected to multiple modular spraying mechanisms and is used to control the start and stop of the modular spraying mechanisms.

[0008] Furthermore, the modular spraying mechanism includes a serpentine loop tube and a temperature and humidity sensor. The temperature and humidity sensor is disposed on the heat insulation and moisture retention layer, and the serpentine loop tube is disposed on the side of the heat insulation and moisture retention layer near the bonding layer. The heat insulation and moisture retention layer is used to wrap the serpentine loop tube.

[0009] The inlet end of the serpentine loop pipe is connected to the inlet pipe, and the outlet end of the serpentine loop pipe is connected to the outlet pipe; a number of micro-spray holes are evenly arranged on the serpentine loop pipe; both the inlet end and the outlet end of the serpentine loop pipe are equipped with solenoid valves.

[0010] The solenoid valve and the temperature and humidity sensor are both connected to the control module.

[0011] Furthermore, the wear-resistant layer is made of geotextile material, which is used to prevent the maintenance blanket from being worn and damaged by external factors during use, thereby extending the service life of the maintenance blanket.

[0012] Furthermore, the heat-insulating and moisture-retaining layer is made of sponge material, used to provide a stable temperature and humidity environment for the concrete.

[0013] Furthermore, the bonding layer is a flexible geotextile, which is used to ensure better adhesion between the curing blanket and the concrete during use, reducing the gaps between them.

[0014] Furthermore, the height of the wear-resistant layer is 0-8 mm, the height of the heat-insulating and moisture-retaining layer is 5-10 mm, and the height of the bonding layer is 0-5 mm.

[0015] Beneficial effects:

[0016] Composite Structure, Integrated Functions: This curing blanket adopts a composite structure consisting of a wear-resistant layer, a heat-insulating and moisture-retaining layer, and an adhesive layer arranged sequentially from top to bottom. The wear-resistant layer is made of geotextile, which has good water permeability and strength and can resist external abrasion; the heat-insulating and moisture-retaining layers are all made of sponge material, achieving efficient heat preservation and long-lasting moisture retention functions respectively; the adhesive layer is made of flexible geotextile, which can closely adhere to the concrete surface, effectively integrating multiple functions and comprehensively meeting the needs of concrete curing.

[0017] Highly efficient heat insulation and strong moisture retention: The heat insulation and moisture retention layer uses sponge material, whose numerous tiny pores are filled with air. As a poor conductor of heat, air greatly hinders heat transfer, providing a stable temperature environment for the concrete. At the same time, the sponge has a super water absorption and retention capacity, absorbing a large amount of water and slowly releasing it, keeping the concrete surface moist at all times.

[0018] Energy-saving and environmentally friendly, reducing costs; compared with traditional frequent watering maintenance, this curing blanket can monitor the humidity and temperature changes of the concrete surface in real time, and can promptly detect localized overly dry areas and carry out targeted autonomous spraying; reducing labor costs and water consumption, it has both good economic and environmental benefits, conforms to the concept of sustainable development, and provides a green and environmentally friendly new solution for concrete curing.

[0019] Highly adaptable and widely applicable: The flexibility of the bonding layer allows the curing blanket to adapt to concrete components of different shapes and surface conditions. Whether it is a flat, curved, or irregularly shaped concrete structure, it can fit tightly to ensure the heat preservation and moisture retention effect, thus expanding the application scenarios of the product. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of a geotextile-sponge self-insulating and moisture-retaining concrete curing blanket according to this utility model.

[0021] Figure 2 This is a structural schematic diagram of a geotextile plus sponge self-insulating and moisture-retaining concrete curing blanket according to this utility model.

[0022] Among them, 1. wear-resistant layer; 2. heat insulation and moisture retention layer; 3. bonding layer; 4. modular spraying mechanism; 41. serpentine loop pipe; 42. temperature and humidity sensor; 43. micro-spraying hole; 44. solenoid valve; 45. water inlet pipe; 46. water outlet pipe. Detailed Implementation

[0023] Example 1

[0024] refer to Figure 1 - Figure 2 A geotextile-sponge self-insulating and moisture-retaining concrete curing blanket includes a wear-resistant layer 1, a heat-insulating and moisture-retaining layer 2, and an adhesive layer 3 arranged sequentially from top to bottom; multiple modular spraying mechanisms 4 are evenly distributed between the heat-insulating and moisture-retaining layer 2 and the adhesive layer 3; the water inlet ends of the multiple modular spraying mechanisms 4 are connected through a water inlet pipe 45, and the water outlet ends of the multiple modular spraying mechanisms 4 are connected through a water outlet pipe 46.

[0025] Preferably, it also includes a control module, which is connected to multiple modular spraying mechanisms 4 respectively, and is used to control the start and stop of the modular spraying mechanisms 4.

[0026] In this embodiment, the control module is a mobile APP. The mobile APP can be used to view the temperature and humidity distribution map of the maintenance area in real time. The mobile APP can set humidity / temperature thresholds (such as humidity below 90%). If the area is below the preset humidity / temperature threshold, the modular spraying mechanism 4 of the area will be activated.

[0027] Preferably, the modular spraying mechanism 4 includes a serpentine loop tube 41 and a temperature and humidity sensor 42. The temperature and humidity sensor 42 is disposed on the heat insulation and moisture retention layer 2, and the serpentine loop tube 41 is disposed on the side of the heat insulation and moisture retention layer 2 close to the bonding layer 3, and the heat insulation and moisture retention layer 2 is disposed to wrap the serpentine loop tube 41.

[0028] The inlet end of the serpentine loop pipe 41 is connected to the inlet pipe 45, and the outlet end of the serpentine loop pipe 41 is connected to the outlet pipe 46; a number of micro-spray holes 43 are evenly arranged on the serpentine loop pipe 41; a solenoid valve 44 is provided at both the inlet end and the outlet end of the serpentine loop pipe 41.

[0029] Solenoid valve 44 and temperature and humidity sensor 42 are both connected to the control module.

[0030] In this embodiment, the serpentine loop tube 41 has a U-shaped pipe structure with sequential bends and loops. The heat insulation and moisture retention layer 2 fills the gaps in the serpentine loop tube 41 and is connected to the bonding layer 3, ensuring that the liquid sprayed from the micro-spray hole can be absorbed by the heat insulation and moisture retention layer more quickly.

[0031] In this embodiment, the temperature and humidity sensor 42 includes a digital temperature sensor and a resistive polymer humidity sensor.

[0032] In this embodiment, the serpentine loop pipe, the outlet pipe, and the inlet pipe are all thin flexible pipes; wherein, both the outlet pipe and the inlet pipe are provided with connectors, and the connectors of the outlet pipe and the inlet pipe are arranged opposite each other on both sides of the curing blanket.

[0033] Preferably, the wear-resistant layer 1 is made of geotextile material, which is used to prevent the maintenance blanket from being worn by the outside world during use and to extend the service life of the maintenance blanket.

[0034] In this embodiment, the geotextile material has good water permeability and a certain strength, which can prevent the maintenance blanket from being worn by the outside world during use, extend the service life of the maintenance blanket, and at the same time, it does not affect the penetration of water.

[0035] In this embodiment, the wear-resistant layer is made of polypropylene woven geotextile, which is treated with UV protection and waterproof coating. On the one hand, it resists the damage to the internal structure caused by external friction, sun exposure and rain, and on the other hand, it prevents a large amount of rainwater from seeping into the insulation layer and causing insulation failure.

[0036] Preferably, the heat insulation and moisture retention layer 2 is made of sponge material, which is used to provide a stable temperature and humidity environment for the concrete.

[0037] In this embodiment, the sponge material has a large number of tiny pores filled with air. Air is a poor conductor of heat, which gives the sponge excellent thermal insulation properties. It can effectively prevent heat transfer, provide a stable temperature environment for concrete, and prevent concrete from cracking due to excessive temperature changes. It is especially suitable for concrete curing in low-temperature environments. At the same time, the sponge has a strong water absorption and retention capacity. It can absorb a large amount of water and release it slowly, keeping the concrete surface moist at all times. This meets the water requirements of concrete during curing, promotes the hydration reaction of concrete, and improves the strength and durability of concrete.

[0038] In this embodiment, the sponge water storage layer of the heat insulation and moisture retention layer is made of super absorbent resin composite sponge with a water absorption ratio of ≥35 times; flexible heat insulation cotton is filled in the pores of the sponge water storage layer, and the filling amount is 30%-40% of the sponge volume.

[0039] Preferably, the bonding layer 3 is a flexible geotextile, used to prevent gaps from appearing between the curing blanket and the concrete.

[0040] In this embodiment, the flexible geotextile can fit tightly against the concrete surface, preventing gaps between the curing blanket and the concrete, ensuring the heat preservation and moisture retention effect. At the same time, the flexible geotextile can adapt to concrete components with different shapes and surface conditions.

[0041] In this embodiment, the bonding layer 3 is made of short-fiber needle-punched nonwoven geotextile with a non-slip and wear-resistant coating sprayed on the surface to ensure that the curing blanket is tightly bonded to the concrete surface without gaps, while avoiding damage caused by direct friction between the concrete surface and the insulation layer.

[0042] Preferably, the wear-resistant layer 1 has a height of 0-8 mm, the heat-insulating and moisture-retaining layer 2 has a height of 5-10 mm, and the bonding layer 3 has a height of 0-5 mm.

[0043] In other embodiments, the outer diameter of the serpentine loop pipe, the outlet pipe, and the inlet pipe is 6-8 mm, and the inner diameter is 3-5 mm.

[0044] Working principle: The curing blanket is set according to the actual situation. For large-area construction, multiple curing blankets can be spliced ​​together, with an overlap width of not less than 10 cm to ensure seamless coverage. At the same time, the edges and sides of the curing blanket are pressed tightly. The multiple modular spraying mechanisms of multiple curing blankets are connected through the connectors of their respective water outlet and water inlet pipes. That is, the connectors of the water outlet pipes are connected to each other, and the connectors of the water inlet pipes are connected to each other.

[0045] In actual use, after the concrete is poured, wait until the surface is slightly damp but not yet hardened, then immediately cover it with the curing blanket to ensure the curing effect. After the curing blanket is laid, open all the solenoid valves inside the curing blanket to fully wet the entire blanket. When there is obvious water flow on the surface of the curing blanket, that is, the sponge layer (heat insulation and moisture retention layer) is fully saturated, close the solenoid valves. The temperature and humidity distribution map of the curing area can be viewed in real time through the control module, and humidity / temperature thresholds can be set. If the area is lower than the preset humidity / temperature threshold, the modular spraying mechanism of the area will be activated to ensure that the curing blanket can continuously keep warm and moist.

[0046] Example 2

[0047] This embodiment takes concrete slab curing as an example and uses the geotextile plus sponge self-insulating and moisturizing concrete curing blanket of Embodiment 1.

[0048] After the concrete slab has initially set (6 hours), cover it with the curing blanket facing down, splicing multiple curing blankets together and connecting the water inlet and outlet pipes of adjacent curing blankets. Soak the sponge water storage layer for 40 minutes until saturated before covering, then close the outlet pipe valve to allow the sponge to release water naturally. The temperature and humidity distribution map of the curing area can be viewed in real time through a mobile APP, and humidity / temperature thresholds can be set. If the area is lower than the preset humidity / temperature threshold, the modular spraying mechanism for that area will be activated to ensure that the humidity of the curing blanket is maintained at around 88% during the curing period. Remove the curing blanket after 14 days of curing, and the concrete surface should be free of shrinkage cracks.

[0049] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A geotextile-sponge self-insulating and moisture-retaining concrete curing blanket, characterized in that, It includes a wear-resistant layer, a heat-insulating and moisture-retaining layer, and an adhesive layer arranged sequentially from top to bottom; multiple modular spraying mechanisms are evenly distributed between the heat-insulating and moisture-retaining layer and the adhesive layer; The water inlet ends of the multiple modular spraying mechanisms are connected through water inlet pipes, and the water outlet ends of the multiple modular spraying mechanisms are connected through water outlet pipes.

2. The geotextile-sponge self-insulating and moisture-retaining concrete curing blanket as described in claim 1, characterized in that, It also includes a control module, which is connected to multiple modular spraying mechanisms and is used to control the start and stop of the modular spraying mechanisms.

3. The geotextile-sponge self-insulating and moisture-retaining concrete curing blanket as described in claim 2, characterized in that, The modular spraying mechanism includes a serpentine loop tube and a temperature and humidity sensor. The temperature and humidity sensor is disposed on the heat insulation and moisture retention layer. The serpentine loop tube is disposed on the side of the heat insulation and moisture retention layer near the bonding layer, and the heat insulation and moisture retention layer wraps around the serpentine loop tube. The inlet end of the serpentine loop pipe is connected to the inlet pipe, and the outlet end of the serpentine loop pipe is connected to the outlet pipe; a number of micro-spray holes are evenly arranged on the serpentine loop pipe; both the inlet end and the outlet end of the serpentine loop pipe are equipped with solenoid valves. The solenoid valve and the temperature and humidity sensor are both connected to the control module.

4. The geotextile-sponge self-insulating and moisture-retaining concrete curing blanket as described in claim 1, characterized in that, The wear-resistant layer is made of geotextile and is used to prevent the maintenance blanket from being worn by the outside world during use, thus extending the service life of the maintenance blanket.

5. The geotextile-sponge self-insulating and moisture-retaining concrete curing blanket as described in claim 1, characterized in that, The heat insulation and moisture retention layer is made of sponge material, used to provide a stable temperature and humidity environment for the concrete.

6. The geotextile-sponge self-insulating and moisture-retaining concrete curing blanket as described in claim 1, characterized in that, The bonding layer is a flexible geotextile, used to prevent gaps from forming between the curing blanket and the concrete.

7. The geotextile-sponge self-insulating and moisture-retaining concrete curing blanket as described in claim 1, characterized in that, The wear-resistant layer has a height of 0-8 mm, the heat-insulating and moisture-retaining layer has a height of 5-10 mm, and the bonding layer has a height of 0-5 mm.

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