62results about How to "Reduce weathering" patented technology

This invention discloses a new technology related to cellulose fiber reinforced cement composite materials using the loaded cellulose fibers. This invention discloses four aspects of the technology: fiber treatment, formulation, method and final product. This technology advantageously provides fiber cement building materials with the desirable characteristics of reduced water absorption, reduced rate of water absorption, lower water migration, and lower water permeability. This invention also impart the final products improved freeze-thaw resistance, reduced efflorescence, reduced chemical dissolution and re-deposition, and improved rot and fire resistances, compared to conventional fiber cement products. These improved attributes are gained without loss in dimensional stability, strength, strain or toughness.

A process to manufacture concrete products with reduced or no efflorescence by using one or more chemicals that can act as water absorbents, which can be absorbents, super absorbents, or thickeners, either alone or in combination with other common concrete additives. A liquid color preparation and a granular color preparation with integrated water absorbents are also disclosed.

A non-efflorescing cementitious body is formed from sources of calcium aluminate, calcium silicate, calcium sulphate and reactive silica, these ingredients being present in such relative proportions that, upon hydration, both monosulphate (C3A.CŜ.12H) and hydrated alumina (AH3) are formed. Also disclosed is a hydraulic binder and a paste from which such bodies can be formed and a method for forming such bodies. In addition to exhibiting low efflorescence, these bodies retain satisfactory physical properties, especially good durability to natural weathering conditions.

This invention discloses a new technology related to cellulose fiber reinforced cement composite materials using cellulose fibers that are treated with inorganic and / or organic resins to make the fibers more hydrophobic, as well as other chemical treatments. This invention discloses four aspects of the technology: fiber treatment, formulations, methods and the final product. This technology advantageously provides fiber cement building materials with the desirable characteristics of reduced water absorption, reduced rate of water absorption, lower water migration, and lower water permeability. This invention also impart the final products improved freeze-thaw resistance, reduced efflorescence, and improved rot and UV resistances, compared to conventional fiber cement products. These improved attributes are gained without loss in dimensional stability, strength, strain or toughness. In some cases the physical and mechanical properties are improved. This invention also discloses the method of treating cellulose fibers with various chemicals to impart the fiber hydrophobicity for applications in the fiber reinforced cement composite materials.

This invention discloses a new technology related to cellulose fiber reinforced cement composite materials using cellulose fibers that are treated with inorganic and / or organic resins to make the fibers more hydrophobic, as well as other chemical treatments. This invention discloses four aspects of the technology: fiber treatment, formulations, methods and the final product. This technology advantageously provides fiber cement building materials with the desirable characteristics of reduced water absorption, reduced rate of water absorption, lower water migration, and lower water permeability. This invention also impart the final products improved freeze-thaw resistance, reduced efflorescence, and improved rot and UV resistances, compared to conventional fiber cement products. These improved attributes are gained without loss in dimensional stability, strength, strain or toughness. In some cases the physical and mechanical properties are improved. This invention also discloses the method of treating cellulose fibers with various chemicals to impart the fiber hydrophobicity for applications in the fiber reinforced cement composite materials.

The invention relates to a puddling additive which is prepared from the following materials by weight percent: 60-120 percent of boric sludge and 5-40 percent of calcium oxide. Adding the puddling additive in sintering and pellet materials can ensure stable operation of a blast furnace, increase the yield by as high as 6 percent, reduce coke ratio by 35kg / t iron, improve the quality of cast iron, reduce the sulphur content, increase the first-grade product rate, ensure abundant heat of slag iron and favorable flowability, reduce the iron condensing amount of liquid iron in the slag iron runner and liquid iron tank, lower the consumption of metal iron, make it easy to discharge iron slag, reduce the labor intensity for furnace men, reduce the consumption of auxiliary materials such as lime stone and reduce the blowout amount of furnace dust.

A non-efflorescing cementitious body is formed from sources of calcium aluminate, calcium silicate, calcium sulphate and reactive silica, these ingredients being present in such relative proportions that, upon hydration, both monosulphate (C3A.Cs.12H) and hydrated alumina (AH3) are formed. Also disclosed is a hydraulic binder and a paste from which such bodies can be formed and a method for forming such bodies. In addition to exhibiting low efflorescence, these bodies retain satisfactory physical properties, especially good durability to natural weathering conditions.

A composition for use in construction comprising pigment, dry cement and at least 30% powder polymer is provided. The composition has enhanced color retention and abrasion resistance and when applied to a surface the composition produces a smooth or textured, water-shedding properties that are aesthetically-pleasing. The coated surface as well as the method of preparing and applying the composition is also provided.

An electrodialysis unit 8 comprises a plurality of cathodes 68, a plurality of anodes 70 and a plurality of membranes 71; the cathodes 68 and anodes 70 being arranged alternately in an electrode stack, with membranes 71 in between each cathode 68 and anode 70, anode flow paths 74 formed between the membranes 71 and anodes 70 and cathode flow paths 72 formed between the membranes 71 and cathodes 68; the electrodialysis unit 8 further comprising: an inlet manifold 56 for distributing water to the anode flow paths 74 or to the cathode flow paths 72, wherein the inlet manifold 56 comprises a first tube 58 provided with holes along its length, the holes being connected to the flow paths, and a second tube 60 located within and enclosed by the first tube 58, the second tube 60 having an inlet at one end and being closed at its second end and the second tube 60 being provided with holes 62 along its length that open into the first tube 58.

The invention discloses a multi-functional hail prevention net frame. Vertical rods are ranked in a multi-line and multi-row mode, horizontal iron wires are arranged between top ends of two side rods in the first and last lines, two parallel net hanging iron wires are arranged between the horizontal iron wires between two adjacent rows of the vertical rods, net hanging iron wires are also arranged on two rows of the side rods, pulleys are arranged at the cross positions of the net hanging iron wires and the horizontal iron wires, guide pulleys are arranged at the cross positions of each vertical rod in the first line and the horizontal iron wires, reels are arranged below the guide pulleys, and a plurality of rings are disposed at two edges of a hail prevention net and sequentially ring the net hanging iron wires. The hail prevention net frame is of a curtain type folding and unfolding structure, so that the hail prevention net can be conveniently and freely folded and unfolded by only one person, meanwhile, weathering of the hail prevention net is reduced, and service life of the hail prevention net is prolonged.

A concrete building block containing Portland cement, a filler, water, and a quantity of particularly sized plastic particles, such as spent abrasive particles of a thermoset plastic. The associated method of producing such blocks eliminates the need of curing the blocks in a heated humidity controlled environment in order for the blocks to attain the required water content for hydration of the cement.

The invention relates to a long-term preservation method for a frangible rock core. The method comprises steps of firstly, subjecting the rock core to cutting to obtain a to-be-polished core body, and then polishing the cutting surface of the to-be-polished core body to obtain a to-be-casted core body with a smooth cutting surface, and then placing the to-be-casted core body in a transparent U-shaped groove for casting. Therefore, the frangible rock core can be preserved for a long time. By using the method of the invention, the frangible rock core can be preserved for a long time after polishing and casting, so that the lithology, structure and configuration of the rock core can be further observed and researched more directly. It is easy to carry out high-resolution photographic, scanning, non-destructive test analysis and other scientific research work, while reducing weathering and fragmentation of the rock core after being influenced by the temperature, humidity and other natural factors for a long time.

The invention relates to a gelatinizer including the following components, by weight: 30-350 parts of magnesium- and aluminum-rich silicate (Mg5Si8O20(OH)2(OH2)4.4H2O), 80-150 parts of high-activity aluminum silicate, 5-15 parts of boric acid (H3BO3), 5-15 parts of citric acid (C6H8O7), 2-15 parts of phosphoric acid (H3PO4), 5-10 parts of silicon sol (SiO2.nH2O), 1-3 parts of a siloxane waterproof agent, 800-1200 parts of light calcined magnesium oxide, 300-500 parts of magnesium chloride hexahydrate, 80-120 parts of magnesium sulfate heptahydrate, and 400-600 parts of water. The gelatinizer, on the basis of maintaining the technical indices, such as fireproof performance, waterproof performance and the like, is free of formaldehyde when being used for cementing and adhering various building decorative materials, so that the gelatinizer increases utilization rate of house, provides a green and environment-friendly living environment, and is beneficial to body health of residents.

The present invention relates to cement-containing compositions which are characterized in that they have a proportion of organosilicon compounds of greater than 0.15% by weight, based on the proportion of cement, the organosilicon compounds being based on at least one organosilicon compound selected from the group consisting of the alkoxysilanes and at least one selected from the group consisting of the alkoxysiloxanes, to a process for the preparation thereof and to the use thereof.

An electrodialysis unit 8 comprises a cathode 68, an anode 70, a membrane 71 between the cathode 68 and the anode 70, a cathode flow path 72 for water flow along the membrane 71 on the cathode side, an anode flow path 74 for water flow along the membrane 71 on the anode side, and a reaction zone formed between the membrane 71 and the cathode 68 where the cathode 68 faces the anode 70, wherein the cathode flow path 72 is arranged for laminar flow in the reaction zone and wherein the electrodialysis unit 8 comprises flow conditioning elements 64 arranged to promote laminar flow in the incoming water flow to the cathode flow path 72.

The invention discloses a modular slope greening method, and belongs to the technical field of slope protection. The modular slope greening method comprises the following steps: (1) cleaning a slope surface; (2) constructing a construction platform according to construction specifications; (3) forming holes in anchor rods, manufacturing the anchor rods and grouting and anchoring the anchor rods; (4) arranging concrete post piers at the tail ends of the anchor rods; (5) welding H-shaped steel with anchor bars at bending parts of the anchor rods; (6) welding square steel at web plates of the H-shaped steel, the square steel and the H-shaped steel form a grid on the surface of the slope, and placing slope greening modules in the grid; and (8) moving seedlings into the slope greening modules for curing. According to the modular slope greening method, the stability and the durability of an original concrete protective slope are improved; the environmental benefit and the landscape effect of the slope are improved; and the safety of the slope is improved.

The invention relates to water-soluble copolymers based on a) 50 to 97 wt.% of one or more non-ionic monomers that contain ethylenically unsaturated amide groups, b) 0.1 to 10 wt.% of one or more monomers that contain ethylenically unsaturated silane groups, and c) 1 to 30 wt.% of one or more ionic, ethylenically unsaturated monomers and optionally one or more other ethylenically unsaturated monomers, the amounts in wt.% adding up to 100 wt.%.

A concrete building block containing Portland cement, a filler, water, and a quantity of particularly sized plastic particles, such as spent abrasive particles of a thermoset plastic. The associated method of producing such blocks eliminates the need of curing the blocks in a heated humidity controlled environment in order for the blocks to attain the required water content for hydration of the cement.

The invention provides a landscaping water center green island structure comprising anchoring rods, planting pots, pneumatic floats and microbial hanging rings. One telescopic rod is inserted into thetop of each standing column, and is fixedly connected with the standing column by a first pin roll. The tops of the anchoring rods are fixedly connected with the pneumatic floats by connecting iron chains; the top of each pot body is provided with an integral ring edge; the outer side walls of the ring edge are provided with single-layer lifting lugs and double-layer lifting lugs which are in two-two symmetrical arrangement, and hanging wires pass through through-holes, and are fixed and limited by limit heads. In the winter when the temperature is low, the planting pots sink under water surface and are located 30 cm below the water level line. The sun withering effect on the planting pots under the water surface can be reduced, the service life of the planting pots can be prolonged, andthe planting pots with plants planted in are hidden under the water surface to avoid influence on the ornamental value of a water body. The microbial hanging rings are suspended at the bottom of the planting pots to enhance the ability of microorganism to break down pollutants in water.

The invention provides a blasting method of IV-level massive kata-rocks with mussily-developing wide fracture faces, and relates to the technical field of tunnel blasting. The blasting method comprises the following steps that drilling is conducted within the 120-degree radiation range of an arch part, an advanced small pipe filled with concrete in advance is installed, and concrete is sprayed forsealing, so that a cantilever ring beam is formed at the position after the next-loop blasting; the arch part and a tunnel face are observed and analyzed on site, the strength of surrounding rock andthe overbreak-underbreak conditions are zoned in the combination of the last loop, a charging structure and a blasting method are adjusted, after the adjustment, the next-loop blasting is started, and the method for adjusting the parameters, such as the setting position of a blasthole and the charging amount, is optimized. The blasting method has the characteristics of having a good blasting effect, improving the safety, improving the working efficiency and reducing the enterprise cost.

The invention discloses a weathering resistant double-isolation safe passageway method for guaranteeing the safety of tourists and the long-term protection on underground cavities under tourist conditions, and relates to an underground thin-shell structure composed of a single underground passageway laid on an underground cavity base plate or a plurality of underground passageways communicated with one another. The weathering resistant double-isolation safe passageway is composed of a protective cushion layer paved on the underground cavity base plate, a transparent viewing window arranged in the passageway, a totally transparent section and a wall transparent section structure; and the method adopts door sealing and window sealing technologies of a double-layer glass structure, the technology of a top plate eave baffle plate for preventing slope rolling stones at an entrance of the cavity and extending out of the cavity passageway, and the like. The weathering resistant double-isolation safe passageway method takes the safety of the tourists and the demands of the tourists on tourism into full consideration, and simultaneously, facilitates long-term protection of the underground cavities and retarding weathering of surrounding rocks.

The invention discloses an anti-weathering transparent soft cover for slowing down the weathering speed of open-air pillar-shaped stone cultural relics, comprising an inner layer and an outer layer of transparent soft plastic thin cover; Belts and buckles; a transparent anti-ultraviolet film and a thin transparent cushion are sandwiched between the inner and outer transparent soft plastic covers, and the ventilation tube passes through the outer transparent soft plastic cover, the thin cushion, the anti-ultraviolet film and the inner transparent Soft plastic thin cover. The invention can effectively prevent rainwater, ultraviolet rays, wind, bird droppings, visitors' touch and other main weathering factors, so it has a long-term weathering effect. The invention not only has the advantages of simple structure, low cost, and convenient use, but also can effectively prevent damage to the pillar-shaped stone surface caused by tourists touching it under the condition of tourism. The manager can also conveniently take off the transparent soft cover when particularly needed, that is, the device has reversibility.

A method for the treatment of cellulose fibers is provided, the method comprising the steps of (i) impregnation of cellulose fibers with a solution comprising a tetraalkoxysilane and a solvent selected from monofunctional alcohols R4OH; and (ii) squeezing out the solution from in between the cellulose fiber walls; wherein the weight ratio of the solution to the dry weight of the cellulose fibers after the step of squeezing is lower than 2.

The invention provides a heat reflection type block gravel slope protection roadbed and a construction method, and relates to the technical field of infrastructure construction. According to the method, heat reflection type coatings of different colors are sprayed on a road surface and a side slope block gravel protection slope respectively so as to achieve the effect of protecting permafrost under an asphalt road surface in a permafrost region; a deep-color near-infrared heat reflection type coating is uniformly sprayed on the road surface; block gravels with gray epoxy resin coatings are laid on the two sides of the roadbed body. According to the roadbed, the reflection characteristic of the heat reflection type coating is utilized, under the condition that the road surface is kept in a dark color, absorption of the road surface and the rubble protection slope to solar radiation is reduced from the source, and the cooling capacity of rubble is further enhanced; and meanwhile, the weathering resistance of the heat reflection type coating is utilized to reduce the weathering effect of the block gravels under extremely complex conditions, so that the durable cooling of the permafrost under the asphalt pavement is realized, the stability of the subgrade (such as Qinghai-Tibet Plateau and arctic region) in the permafrost region is improved, and the smoothness of the road is ensured.

The present invention relates to a cement-based composition capable of realizing rapid formation of tensile adhesion strength. The composition comprises high-slope rankinite sulphoaluminate cement, and is applicable as, for example, a tile adhesive for rapid tiling and repairing. The invention further provides a rapid brick paving method.

An electrodialysis unit 8 comprises a plurality of cathodes 68, a plurality of anodes 70 and a plurality of membranes 71; wherein the cathodes 68 and anodes 70 are arranged alternately in an electrode stack, with membranes 71 in between each cathode 68 and anode 70; and wherein the cathode 68 and the anode 70 are each formed of a single conductive plate such that both surfaces of the cathode plates and anode plates enclosed within the electrode stack are, in use, in conductive contact with the water being treated.

The invention relates to an anti-collision air bag for a bridge pier. The anti-collision air bag comprises an air bag body, an air bag rack and pipe clamps and is characterized in that the air bag body is mounted in the air bag rack and is fixed through pipe clamps, and the air bag rack is fixed on the bridge pier through pipe clamps. The air bag body is an air filling type air bag or a hollow air bag. After the bridge pier is provided with the anti-collision air bag, the bridge pier plays a role of buffering the impact force of the larger flotage in the water, and especially in the case of floods, the danger to the bridge pier due to the impact of the larger flotage is obviously reduced. And in addition, after the bridge pier is provided with the anti-collision air bag, the exposure degree of the bridge pier is lowered, and correspondingly, the weathering is reduced, and the service life of the bridge pier is prolonged.