42results about How to "Low technical requirements for construction" patented technology

The invention relates to a synthetic court, and in particular relates to a silicon PU type synthetic court which is suitable for various competition places, is high in elasticity, has anti-abrasion and anti-skid and anti-aging effects, is integrally molded, is uniform in surface layer thickness and is colorful and is used for solving the technical problems in the prior art. The silicon PU type synthetic court comprises a basic layer, a waterproof layer, a silicon PU elastic layer and a cover finishing coat protection layer, wherein the silicon PU elastic layer consists of a leveling layer and a reinforcement layer. The silicon PU type synthetic court can be widely applied to basketball, tennis ball and badminton ball places with various fundamental planes, various indoor and outdoor leisure areas, gymnasiums, gymnasium activity places and the like.

The invention discloses an adjustable column formwork. The adjustable column formwork comprises a front formwork body, a rear formwork body, a left formwork body and a right formwork body. A sliding groove, a small sliding groove, teeth and size scales are arranged on a pouring face of the rear formwork body, and two ends of the sliding groove are chiseled through. One end of the sliding groove ofeach of the left formwork body and the right formwork body is chiseled through, two bearings are arranged on a side wall of a non-chiseled end of each of the left formwork body and the right formworkbody, and the rest structures of the left formwork body and the right formwork body are the same with the structures of the rear formwork body. Four bearings are arranged on a side wall of the pouring face of the front formwork body. According to a column side line, the rear formwork body is firstly installed, the left formwork body and the right formwork body are embedded into the sliding grooveformed in the pouring face of the rear formwork body through the bearings of the left formwork body and the right formwork body to be connected with the rear formwork body, the front formwork body isembedded into the sliding groove formed in the pouring face of the left formwork body and the sliding groove formed in the pouring face of the right formwork body through the bearing on the front formwork body to be connected with the left formwork body and the right formwork body, and the upper formwork body and the lower formwork body are connected through bolts and inserting holes in the backfaces of the formwork bodies. The distance between the formwork bodies is achieved through sliding bearings according to the size scales on the pouring faces, each sliding groove is sealed through a sealing strip embedded into the corresponding small sliding groove, and the formwork bodies are fixed through formwork fixing devices and the sealing strips. The formwork is convenient to dismount andassemble, one formwork can be used for pouring of columns in multiple sizes, column hoops are not needed, and popularization is facilitated.

The invention provides a constructional column for a masonry structure, which is characterized in that the constructional column is mainly formed by assembling precast segments (2) with longitudinal ribs (1). The invention also provides a method for preparing the constructional column for the masonry structure and special precast segments thereof. The preparation of the constructional column according to the method has low cost, because, on one hand, the precast segments can be produced in precast component factories, have a simple production technology, and are convenient to be promoted in the precast component factories in rural areas, and the industrialized production can reduce the cost to ensure that the cost for the constructional column is reduced; on the other hand, no formwork supporting is needed during the construction of the constructional column, thereby saving the cost for raw material purchase (or the tenancy of a steel formwork) of a formwork and the labor cost such asthe manufacture, supporting and removal of the formwork and so on; and a hollow constructional column can be adopted in a low seismic fortification intensity area, the cost for a concrete material ina cavity part can be saved, and the labor cost can also be saved due to the fact that no wet operation is needed on the spot.

The invention discloses urushiol phosphorous-series flame retardant resin. The resin consists of the following raw materials in percentage by mass: 20 to 40 percent of urushiol, 0 to 20 percent of amine compound, 4 to 10 percent of aldehyde compound, 0.5 to 6 percent of phosphorous-series compound, 0 to 5 percent of epoxy resin, 0.5 to 3 percent of catalyst and 40 to 55 percent of solvent. A method for preparing the urushiol phosphorous-series flame retardant resin comprises the following steps of: obtaining raw lacquer from a lacquer tree; separating and extracting the urushiol from the raw lacquer, heating the urushiol and reacting the heated urushiol with the amine compound, the aldehyde compound, the solvent and the catalyst for synthesizing; and adding the epoxy resin, the phosphorous-series compound and the solvent into the complex, heating and reacting for synthesizing, stopping heating and cooling to room temperature after reaction is finished. The resin has high flame retardant property, water resistance and chemical resistance and is suitable for fields such as public fire safety, chemical industry, light industry, building materials, electronic apparatuses, mining and the like.

The invention discloses phenolic resin and a synthetic method thereof. The prepared phenolic resin is composed of the following raw materials in parts by weight: 15%-20% of urushiol, 4%-6% of a aldehyde compound, 1.5%-2.5% of an alkaline catalyst, 5%-10% of binary anhydride, 8%-15% of dry vegetable oil, 0.1%-0.7% of an initiating agent, 50%-60% of a solvent, wherein the sum of the percentages of the raw materials is 100%. According to the invention, the synthetic process is simple, the condition is easy to control, the product is uniform, and a coating film is rich in elasticity, high in brightness, good in adhesive force and light in color; and the phenolic resin not only avoids toxicity of raw lacquer, but also overcomes the weaknesses such as poor weather resistance, poor acid and alkaline resistances, and poor durability, enlarges application range of the raw lacquer, and enables the raw lacquer to be widely applied to the fields such as buildings, decoration, furniture, petroleum and chemical engineering.

The invention discloses a method for reinforcing and deviation correcting of building foundation through combined grouting. According to the method, polyurethane grouting and cement grouting are combined organically, polyurethane grouting drill holes are formed in the area where the maximal sedimentation occurs of the building foundation, the polyurethane reaction raw material slurry is grouted into the drill holes, the chemical reaction expansion is generated, so that the area where the maximal sedimentation occurs of the building foundation can be reinforced and lifted, meanwhile, cement grouting drill holes are formed in the periphery of the polyurethane grouting drill holes in a certain density, the pre-existing pores, pre-existing gaps and gaps generated after the polyurethane grouting foundation is lifted in the reinforced foundation are filled and reinforced through the cement grouting method, and a cement-reinforced body is formed. The method has the advantages the reinforcing and lifting of the building foundation through the polyurethane grouting are quick and precise; the building foundation is evenly and comprehensively reinforced through the cement grouting; the construction process is simple, convenient and fast, and the cost is low.