10results about How to "Improve waterproof quality" patented technology

The invention discloses a self-leveling penetrating crystallization waterproof coating and application thereof. The waterproof coating comprises component A and component B, wherein component A comprises water and polyvinyl alcohol, and component B comprises a base material and an active crystallization chemical substance. In terms of mass percentage, the polyvinyl alcohol in component A is 10%-20%, and component A does not contain other film-forming resins except polyvinyl alcohol, and component B further comprises 0.1%-0.8% of tartaric acid. The waterproof coating can achieve sufficient penetration of active crystallization substances independently without a maintenance process by self-locking water, can improve the waterproof performance of a concrete base layer and can form a waterproof layer itself, can seal a ventilation channel between concrete and an outside, prevent the generation of bubbles during the construction of a next waterproof or decorative coating, and has excellent self-leveling performance, can easily achieve a leveling function for a concrete foundation, for example, a waterproof coiled material can be directly laid thereon without additional operations such as grinding and leveling.

The invention discloses a spraying type waterproof membrane waterproof performance evaluation method, which comprises the steps of obtaining influence factors of a spraying type waterproof membrane, and obtaining corresponding evaluation indexes based on the influence factors; constructing an index evaluation system based on the influence factors and the evaluation indexes; establishing a fuzzy comprehensive evaluation model of the waterproof performance of the spraying type waterproof membrane by adopting a fuzzy secondary comprehensive evaluation method; and evaluating the index evaluation system by using the fuzzy comprehensive evaluation model to obtain the waterproof performance of the spraying type waterproof membrane material. According to the method for evaluating the waterproof performance of the spraying type waterproof membrane, the waterproof performance of the spraying type waterproof membrane can be quantitatively evaluated, so that the problem of water leakage of a tunnel is effectively prevented, and a theoretical basis is provided for popularization and application of the spraying type waterproof membrane in the tunnel and underground engineering.

The invention discloses a self-leveling capillary crystalline waterproof coating and a preparation method thereof, the waterproof coating comprises a component A and a component B, the component A comprises water and polyvinyl alcohol, the component B comprises cement, quartz sand, an active crystalline chemical substance and tartaric acid, and the component A and the component B are respectively prepared during preparation; uniformly mixing the components in the component A to obtain the component A; uniformly mixing the components in the component B to obtain the component B, and mixing the component A and the component B during use; the waterproof coating can independently complete sufficient permeation of active crystalline substances through self-water-locking without a maintenance process, can improve the waterproof performance of a concrete base layer, can form a self-waterproof layer, can seal a ventilation channel between concrete and the outside, prevents construction bubbles of a next waterproof or decorative coating from being generated, and improves the waterproof performance of the concrete base layer. In addition, the leveling agent has excellent self-leveling performance and can easily achieve the leveling function on a concrete foundation, for example, waterproof coiled materials can be directly laid on the leveling agent, and extra operations such as polishing and leveling are not needed.

The invention discloses a permanent-temporary overlapped assembly station structure and a construction method. The permanent-temporary overlapped assembly station structure comprises an enclosure structure, a prefabricated middle longitudinal beam, a cast-in-place bottom plate, a prefabricated side wall and a prefabricated middle plate. Prefabricated side walls are arranged on the left and right sides of the top of the cast-in-place The prefabricated side wall is formed by splicing a plurality of side wall overlapping prefabricated blocks; the side wall superposed precast block comprises a first steel bar truss and a first concrete precast block; a cast-in-place core wall is arranged between the enclosure structure and the first concrete precast block; the prefabricated middle plates are arranged at the tops of the prefabricated middle longitudinal beams and the prefabricated side walls; the prefabricated middle plate is formed by splicing a plurality of middle plate overlapping prefabricated blocks; the middle plate laminated precast block comprises a second steel bar truss and a second concrete precast block; a middle plate cast-in-place layer is arranged at the top of the second concrete precast block; and the cast-in-situ core wall and the middle plate cast-in-situ layer are integrally cast and The core pouring wall and the middle plate cast-in-place layer are poured at a time and integrally formed, one horizontal construction joint can be omitted, and the structural integrity and the waterproof quality are greatly improved.

The utility model discloses a pressure-preventing and pressure-discharging combined product replacing a concrete leveling layer, and relates to the field of waterproof, drainage and pressure-resisting structures of building underground engineering top plates and roofs. According to an existing method, a concrete protection layer is firstly made on a waterproof layer of a top plate and a roof to serve as a protection layer of the waterproof layer, due to the fact that a water channeling layer can be formed between concrete and the waterproof layer, only the anti-compression protection function is achieved, the concrete protection layer needs to wait for the curing period, and self-adhesion waterproof coiled materials are laid on the original waterproof layer of the top plate and the roof to cause the self-adhesion waterproof coiled materials to be damaged. The self-adhesive waterproof coiled material is in flush joint with the drainage plate, two or four rows of drainage plate strips are arranged at joints, and the drainage plate strips are buckled together through mucilage glue to form a combined whole product. An original concrete protection layer can be replaced, no water channeling layer exists on an original waterproof layer, and the standard requirement for pressure resistance is met.

The invention discloses a device for enhancing the waterproof quality of an anti-floating anchor rod and a construction method, and belongs to the field of building engineering foundation construction, the device comprises a water stop ring, a grouting pipe, a steel bar and a structure main body, the grouting pipe and the steel bar are placed in the structure main body, and a cushion layer is arranged on the structure main body; waterproof coatings are coated on the end parts of the reinforcing steel bars at the anchor rods and the reinforcing steel bars within the range of not less than 50cm in the upper and lower areas of the cushion layer, water stop rings are arranged at the positions of the reinforcing steel bars at the anchor rods, water stop sleeves are additionally arranged at the junctions of the anchor rods and the cushion layer, waterproof roll additional layers are additionally arranged at the junctions of the cushion layer and the anchor rods, and waterproof protection layers are poured on the waterproof rolls. According to the anti-floating anchor rod, various waterproof barriers are combined with one another, the waterproof quality of the anti-floating anchor rod can be effectively improved, and therefore the problem of water leakage caused by the fact that the waterproof range is too small in the traditional waterproof process or due to influences of other factors such as vibration in the subsequent using process can be effectively solved.

The utility model provides a water stop device for post-pouring zone, include: a plurality of prefabricated board, each prefabricated board is in contact sealed with two building body's lateral surface, and a plurality of prefabricated board is sequentially arranged and sealed connection along the extension direction of post-pouring zone and is integrated, and post-pouring zone is covered. The utility model can effectively prevent leakage and rainfall to cause rust to the reinforcement inside post-pouring zone, keep the inside environment of post-pouring zone neat, need not to maintain post-pouring zone, reduce maintenance cost and subsequent construction risk.

The utility model relates to the field of bluetooth headset with waterproof dustproof structure's bluetooth headset, including earphone shell, the bottom of earphone shell is equipped with battery compartment, the outside of earphone shell is connected with seal cover, waterproof film is inserted in the inside of earphone shell and seal cover, dustproof screen is equipped in the inside of the sound outlet of earphone shell and seal cover, the bottom of battery compartment is connected with sealing cover, the inside of battery compartment is inserted with battery, the inside of sealing cover is inserted with contact, the top of sealing cover pastes with sealing washer, the lower side of sealing cover's inner wall inserts the conical ring with, through the dustproof screen of adding in the sound outlet of earphone shell and setting up waterproof film in the inside of earphone shell, has promoted the waterproof quality of bluetooth headset, can simultaneously through the sealing washer and conical ring of adding, can carry out the sealing between the gap of sealing cover and battery compartment.

The invention discloses a pitched roof assembly type tile hanging structure and a construction method. The structure comprises embedded steel bars vertically and fixedly arranged on a pitched roof, waveform asphalt waterproof plates clamped to the embedded steel bars in an embedded mode, tile hanging strips clamped to the ends of the embedded steel bars in an embedded mode and combined roof tiles hung on the tile hanging strips. The upper portion of each embedded steel bar is provided with a steel bar inclined sliding face contracting inwards and an arc-shaped steel bar clamping head, the roof battens are located on the upper end face of the wave-shaped asphalt waterproof plate, preformed holes used for hanging tiles are formed in the upper surfaces of the roof battens, opening grooves corresponding to the upper portions of the embedded steel bars in shape are formed in the bottoms of the roof battens, and special-shaped elastic blocks are arranged in the opening grooves. The combined roof tile comprises an L-shaped fixed tile and an arc-shaped decorative tile. The waterproof quality of the roof is improved, the water leakage problem caused by unfavorable plugging of the hole in the later period is avoided, the construction efficiency and safety are improved, the maintenance difficulty is reduced, and the maintenance cost is saved.

The invention discloses a bridge sidewalk waterproof layer structure and a construction method thereof, and belongs to the technical field of building construction.The bridge sidewalk waterproof layer structure comprises a sidewalk pavement layer, and a sidewalk waterproof layer is arranged above the sidewalk pavement layer; a drainage pipeline is arranged on the side, close to the handrail foundation base, of the sidewalk waterproof layer, the drainage pipeline is pre-buried at the bottom of the handrail foundation, and the handrail foundation base is arranged above the drainage pipeline; a drainage blind pipe is arranged on the side, close to the drainage pipeline, of the handrail foundation base, a drainage sand cushion layer is arranged above the sidewalk waterproof layer and the drainage blind pipe, and a sidewalk surface layer is arranged above the drainage sand cushion layer, so that the strength of the sidewalk structure is guaranteed, the drainage effect of the sidewalk structure is greatly improved, and the service life of the sidewalk structure is prolonged. Therefore, accumulated water in the sidewalk structure layer can be drained in time, damage caused by accumulated water is avoided, the waterproof quality of a bridge is improved, and the water seepage rate of the bridge floor is reduced. And the problems of later secondary repair, decoration and the like are reduced.