30results about How to "Realize civilized construction" patented technology

The invention relates to thickening powder for preparing dry-mixed plastering mortar, which belongs to the thickening powder of building auxiliary materials. The thickening powder is formed by organic materials, and comprises the following components by weight percentage: 11-13 percent of hydroxypropyl methyl cellulose ether, 22-24 percent of wood fiber, 57-61 percent of calcium lignosulphonate and 6-7 percent of starch ether. The thickening powder is used as an additive of the dry-mixed plastering mortar, which can obviously improve the workability, water retention property, mechanical property and durability of the dry-mixed plastering mortar. The invention has the advantages that the thickening powder is formed by organic materials, less in using amount, low in cost and suitable for industrialized production of the dry-mixed plastering mortar, has high requirement on quality control and no pollution, can obviously improve the workability, water retention property, mechanical property and durability of the dry-mixed plastering mortar, is convenient to store and convenient and rapid to use, has no radioactivity and corrosivity, reforms the preparation mode for building mortar in the prior art, eliminates the lime pool and the stirring mill built on the construction site, reduces dust raising and noises, realizes civilized construction, and produces favorable social and economic benefits.

The heat insulating foamed polystyrene particle mortar used in building engineering consists of portland cement 40-45 wt%, flyash 3-6 wt%, fine silica powder 0-3 wt%, foamed polystyrene particle 1.3-2.8 wt%, polypropylene fiber 0.1-0.2 wt%, quartzite 42-47 wt% and water-thinned silane / siloxane emulsion 5-8 wt%. The present invention has light bulk weight, dry density 300-480 kg / cu m; good heat insulating and sound isolating performance, and heat conducting coefficient 0.07-0.13 W / m.k. The present invention utilizes partial flyash to replace cement and the product has no environment pollution.

The invention relates to a manufacturing method of a rubber and chemical fiber synthetic waterproof sheet and a product thereof, and the rubber and chemical fiber synthetic waterproof sheet is formed by compounding three layers of material, wherein the middle layer is a chemical fiber cloth or felt composite layer, and the chemical fiber cloth or felt composite layer is a waterproof layer enabling polymer synthetic rubber composite material and chemical fiber cloth or felt to infiltrate and adhere mutually; when in manufacturing, the chemical fiber cloth or felt of the middle layer is firstlyplaced in a dip coating groove for enabling the chemical fiber cloth or felt to soak polymer synthetic rubber waterproof rubber material, and the middle sheet layer is further manufactured; and two layers of the chemical fiber cloth or felt are stuck on two surfaces of the middle sheet layer respectively, thereby forming the three-layer compound synthetic waterproof sheet. The polymer synthetic rubber waterproof rubber material takes rubber as main material, and a high polymer and other auxiliary materials are added for manufacturing the waterproof rubber material; the auxiliary materials comprise an accelerant, filling material, a softener, a cross-linking agent or an anti-aging agent; and the middle sheet layer can be manufactured by one of three forms respectively, namely the cold working method, the hot working method and the rolling method.

The invention discloses a construction method for breaking an end socket tunnel portal retaining structure of a shield section. The method comprises the following steps of 1, drilling holes in a circular tunnel portal of the retaining structure; 2, stirring expansion slurry; 3, injecting the stirred expansion slurry into vertical holes and longitudinal holes, sealing the holes, and pre-cracking concrete; 4, chiseling a launching surface of the circular tunnel portal; 5, dividing the circular tunnel portal into a first area, a second area, ... and an nth area; 6, sequentially carrying out concrete peeling and reinforced concrete breaking on the launching surface of the circular tunnel portal in the first area, the second area, ... and the nth area; 7, chiseling a soil surface of the circular tunnel portal; 8, carrying out shield launching / reception tunneling construction. According to the method, through reasonable drilling arrangement and precise drilling depth, it is ensured that theconcrete breaking range of the tunnel portal can meet clearance requirements of design and construction; the whole process has high safety, collapse does not easily occur, the construction is fast, and meanwhile, the safety of construction personnel is ensured.

The invention discloses a production method of lightweight concrete prefabricated big panels. The method comprises the following steps: 1, selecting raw materials according to a case that every cubic meter of lightweight concrete prefabricated big panels contains 450-550kg of cement, 65-195kg of stone flour, 3.25-9.75kg of a water reducer and 0.01-0.05kg of a foaming agent, foaming the foaming agent, uniformly mixing cement, the stone flour and the water reducer to prepare a cement mortar, adding the foamed foaming agent to the cement mortar, and uniformly stirring the foamed foaming agent and the cement mortar to prepare lightweight concrete; and 2, pouring the lightweight concrete in a die, and carrying out demolding treatment and curing to produce the lightweight concrete prefabricated big panels. The method solves the problem of adverseness of too large weight of common prefabricated big panels to transportation and hoisting installation, the weight of the lightweight concrete prefabricated big panels produced in the invention is about 50% lower than that of common concrete prefabricated big panels, and the construction efficiency of prefabricated wallboards is effectively increased.

The invention discloses a construction method for splicing a macromolecular waterproof roll, which comprises the following steps: a. two double sticky tapes are adhered to both ends of a joint respectively to form a closed cohesive surface; b. the waterproof roll is fixed inside the joint, and an adhesive is coated on the cohesive surface; and c. the waterproof roll and the double sticky tapes are adhered to each other, and the cohesive surface is rolled by a pressure roller. The construction method improves the prior construction method, adopts the double sticky tape as the epoxy adhesive toform a closed receiving space, uses the pressure roller to grind a cohesive position of the waterproof roll and discharge air bubbles in the epoxy adhesive, makes the waterproof roll in a cohesive area practically combined with the epoxy adhesive which can not be overflowed from the cohesive position, realizes civilized construction, reduces the engineering cost, can perform visualized check on the construction quality through the transparent waterproof roll, and widen the application range.

The invention discloses an assembly construction method for PVC wire pipe hidden lying, which comprises the following steps that: (1) standard bellows and direct heads are pre-manufactured in batch in advance; (2) according to markers for a shop drawing, the positions of a switch, a socket and a lamp cap box are marked on a template, and the directions of conduits are marked by arrows; (3) one end of each elbow extends out of a floor, a conduit plug is used for sealing the pipe end of the end, and a clamp is used for fixing and positioning the elbow; a point positioning joint is fixed on a positioning point at a temperature marking position, and the direct head is sleeved on the point positioning joint and positioned; the lamp cap box is installed; the lamp cap box is arranged at a lamp cap box marking position and fixed; and (4) piping: a PVC wire pipe and the direct head are respectively connected with the elbows at all positioning parts, the lamp cap box and the direct head at the positioning point. The assembly construction method for PVC wire pipe hidden lying has the advantages of good quality, high efficiency, material saving, environment protection, simple procedures, convenient operation and the like.

The invention relates to a prefabricated dewatering pipe pile in a building foundation pit and a method for using the same. The prefabricated dewatering pipe pile is hollow and cylindrical and includes a pipe wall and a conical pile point. The upper part of the pipe wall is arranged with a plurality of water-permeable piles at intervals. hole. A filter cartridge is provided inside the prefabricated downwater pipe pile, and the upper end of the filter cartridge is open and the lower end is closed. The method for using the prefabricated dewatering pipe piles includes the following steps in turn: (1) prefabricated prefabricated dewatering pipe piles; (2) determining the total number and arrangement spacing of the prefabricated dewatering pipe piles; (3) installing the prefabricated dewatering pipe piles, and (4) put submersible pump and water outlet pipe in the prefabricated downwater pipe pile; (5) stop submersible pump pumping, clear hole, pour cement mortar, and part of cement mortar penetrates outwards through the permeable hole and connects with all Describe the consolidation of soil outside the prefabricated downfall pipe pile. The invention shortens the construction period of the pipe well, and at the same time, the prefabricated downwater pipe pile is changed into an uplift pile, and the anti-floating performance of the prefabricated downwater pipe pile is improved.

The invention discloses a heavy-duty lining trolley of push-pull and slide-type disc buckle support, which includes a lining formwork system, a disc buckle-type full hall support, a chassis of the trolley, and a column. A screw jack is installed on the top of each column, and all the screw jacks can The lining formwork system is jointly lifted or lowered through the longitudinal beams; a number of horizontal jacking cylinders are arranged at intervals on the left and right behind the chassis of the trolley, and the rear end of each horizontal jacking cylinder is against the horizontally extending cylinder support, and the rear of the cylinder support At least two rebars are inserted into the concrete of the tunnel floor as reaction support. At the same time, the invention also discloses a lining template construction method using the above-mentioned heavy-duty lining trolley of the pushing and sliding buckle bracket. The lining trolley specially used for super-long-span tunnel lining construction can be recycled and reused to avoid time-consuming and costly re-installation after dismantling. It is safe, reliable and has a high bearing capacity.

The invention discloses thermal mortar of ceramic tile slag particles. The thermal mortar is characterized by being prepared from the following raw materials in parts by weight: 290-330 parts of cement, 200-245 parts of ceramic tile slag particles, 35-50 parts of calcium sulfate whiskers, 85-105 parts of mica, 90-110 parts of aluminum nitride powder, 105-130 parts of kaoline, 75-90 parts of reed stems, 9-13 parts of naphthalene-based superplasticizer, 8-12 parts of sodium tripolyphosphate, 6-9 parts of calcium saccharate and 3-6 parts of assistants. The thermal mortar is light in unit weight, excellent in corrosion resistance, good in heat preservation and sound insulation performances, low in heat conductivity coefficient, and good in water-retaining property, and the product is stable in physical property, free of cracking, free of hollowing, good in ageing resistance and long in service life. The product can be applied by adding water, and is convenient to use, civilized construction can be achieved, and the product is free of toxicity, free of taste, free of harm to a human body, and free of environmental pollution, and belongs to the environment-friendly insulating and energy-saving material.

A method for discharging water from a dam concrete placing area via a concealed pipe, comprising: arranging a primary water discharge pipe in a predetermined area to communicate the upstream and the downstream of the dam; laying secondary pipes for water discharge from the main water discharge pipe to the left side and the right side of the dam body to communicate with each dam block in the area; and connecting vertical tertiary pipes for water discharge from the secondary water discharge pipes on each dam block to communicate with each concrete placing space in the dam block. By adopting the method for discharging water from the dam concrete placing area via the concealed pipe, during the concrete pouring construction process of the dam, the embedded water discharge pipe network extends and expands to all poured concrete dam blocks with the progression of the dam body concrete pouring, thereby completely covering each new concrete pouring space within the dam area, solving the problem of large-area water deposit on the dam concrete placing area, creating a dry construction environment for concrete pouring, ensuring concrete pouring quality, reducing construction interference, and achieving civilized construction.