31results about How to "Strong leakage resistance" patented technology

The invention relates to the field of building decoration and provides a bathroom waterproof system which is simple in structure can convenient to construct and can effectively prevent water molecules in a bathroom from leaking outward and a construction method. The technical problems that in the prior art, the leakage proof effect of the bathroom is poor, the situation that a floor, a door sleeve and the like in a dry area mould and decay is quite prone to occurring, and the attractive degree of overall decoration is reduced are solved. The bathroom waterproof system comprises a bathroom floor base layer and a dry area floor base layer connected with the bathroom floor base layer. Ground decoration paving layers are laid on the surfaces of the bathroom floor base layer and the dry area floor base layer correspondingly. An elastic water retaining plate and the lower end of an elastic water retaining strip are arranged between the bathroom floor base layer and the corresponding ground decoration paving layer in a clamped mode, wherein the upper end of the elastic water retaining plate extends upward to the exterior of the ground decoration paving layer and connected on the bottom face of a doorsill plate in a closed mode, and the upper end of the elastic water retaining plate extends upward to the exterior of the ground decoration paving layer and connected with a cement mortar retaining strip in an airtight mode. The cement mortar retaining strip divides the corresponding floor decoration paving layer into a bathing area and a rest area.

The invention provides an inter-city pipeline underground continuous wall construction method. Through the adoption of the method in the construction, the integrity of the underground continuous wall is good, the verticality is high, the anti-penetration performance is good, the wall body can be successfully sealed, the pollution to the surrounding environment is less, and the underground structures can be better protected. The inter-city pipeline underground continuous wall construction method comprises the following steps: the pipeline is dug, examined and reinforced; wall guiding construction is performed in the pipeline scope; groove building construction is performed, which comprises: firstly, soil masses at both sides of the pipeline are dug with a groove milling machine; secondly, a guiding track frame is arranged along one side of the pipeline; thirdly, a reversible cutting machine is placed in the track guiding frame; and fourthly, the soil masses under the pipeline are laterally milled with the reversible cutting machine; after the groove is milled, a reinforcement cage is hanged in; and the concrete is poured into the pipe.

The invention relates to an anti-leakage repair-enhanced building coating which is prepared by adopting the following steps of: mixing and uniformly stirring 30-42 percent of 800-mesh silicate dry powder, 1-2 percent of KFA, 1-2 percent of plasticizer, 1-2 percent of air entraining agent and 54-65 percent of 20-40-mesh quartz sand to prepare a mixture; then adding water accounting for 15-25 percent of the gross weight into the mixture, uniformly stirring, and settling for 30 minutes to prepare the anti-leakage repair-enhanced building coating. The anti-leakage repair-enhanced building coating has the advantages of stronger coagulability, cementability, anticorrosive property, excellent anti-leakage performance, simple construction, advanced process and strong freezing and thawing resistance, is particularly suitable for being used in extremely cold regions and can be used for the leak stoppage, the seepage prevention, the reinforcement and the corrosion prevention of roads, bridges, oceans, sewage treatment and concrete structures, such as tunnels, large reservoir dams, and the like without other various additives, thereby lowering the cost of the additives and the construction difficulty, improving the engineering quality and the use durability of concrete and avoiding the mutual exclusive reaction.

The invention discloses an environmentally friendly waterproof coating, which is composed of the following raw materials in parts by weight: styrene-acrylic emulsion 62-70, pyromellitic dianhydride 0.4-1, guaiacol 1-2, mannitol 1 ‑2, potassium titanate 0.1‑0.2, fluorapatite 6‑10, talc powder 4‑6, 1,2‑dimethylimidazole 1‑2, dioctyl azelate 2‑3, sodium metasilicate 1‑2, Polypropylene Glycol Diglycidyl Ether 0.5‑1, Diethanolamide Cocoate 0.5‑1, Hydroxyethylidene Diphosphonic Acid 0.3‑0.6, Coating Aid 5‑7, Deionized Water 10‑16, this The invented waterproof coating has good waterproof effect, strong leakage resistance, excellent aging resistance, strong adhesion, good material extensibility, good construction performance, safety and environmental protection, and no toxic and side effects.

The invention relates to a portland blast furnace slag cement and a preparation method thereof. The portland blast furnace slag cement is prepared from the following raw materials by weight percent: 12%-30% of at least one of slag, coal gangue, boiling slag, liquid slag, cinerite, kiln dust and crushed tile, 10%-42% of mineral waste residue, steel slag or silicomanganese slag, 0-12% of limestone, 2%-8% of gypsum, 0-10% of zeolite, 0-17% of boiling slag, 0-10% of coal ash, and 10%-50% of silicate series cement. The preparation method comprises steps of putting the slag, mineral waste residue, gypsum, zeolite, boiling slag, and coal ash into a pulverizer to be smashed, grinding by a ball mill to achieve the fineness of 0.08mm, sieving by a square hole sieve with 2% left, and then mixing with the silicate series cement. The portland blast furnace slag cement has the advantages of having a simple preparation method, needing no cement clinker, guaranteeing the strength and stability of the cement, fully using industrial residue resources like slag and mineral waste residue, lowering production cost, and reducing the pollution of industrial residue to the environment.

The invention provides a hybrid structure prefabricated toilet for a prefabricated building and a manufacturing method thereof. The toilet comprises a wall unit, a sewage main riser, and a bottom plate unit fixedly connected with a steel beam or a superposed beam. During operation, the bottom plate unit is fixedly connected with the steel beam or the superposed beam through connecting pieces I. The bottom plate unit is connected with a floor through cast-in-place nodes. A wallboard is fixedly connected with the bottom plate unit through the matching of a connecting plate II and a correspondingconnecting plate I. The sewage main riser penetrates through and is fixedly connected to the bottom plate unit. The manufacturing method of the toilet includes the steps of scheme design, prefabricating the bottom plate unit, prefabricating the wallboard, transportation to the site, assembling and pouring floors and the like. The toilet can reduce construction difficulties caused by weather changes, is convenient and quick to install, and has good anti-leakage performance.

The invention relates to a polynomial fitting and non-interference area division-based interharmonic detection method. The method comprises the steps that an electric power signal is converted into asecondary side dispersion signal through a power transformer; frequency spectrum information of the signal is obtained by means of a specific window function and discrete Fourier transform; sensitivity, relative to a peak value, of a spectral line near a spectrum packet is worked out by adopting a similar signal-to-noise ratio formula; the sensitivity of a certain numerical value serves as a threshold value to cut a packet, the truncation length serves as the basis to distinguish the main lobe type; then the symmetric axis of a spectral line at one side is built through polynomial fitting, thespectral line is symmetrized to the other side, and a non-interference area is marked out; finally, an interpolation formula is built according to the spectral line in the non-interference area, andthe offset is solved. By taking the offset as the basis, parameters such as the amplitude, the frequency and the phase angle of a harmonic wave can be worked out. Accordingly, whether or not main lobejamming occurs in the frequency domain of the signal can be distinguished, and on the condition that main lobe jamming occurs, the area which is not disturbed or disturbed less can be effectively marked out.