Patents
Literature
Eureka-AI is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Eureka AI

6024results about "Cement mixing apparatus" patented technology

Preformed material for post-tensioned prestressing pipeline vacuum grouting or mudjacking and preparation method thereof

The invention discloses a preformed material for post-tensioned prestressing pipeline vacuum grouting or mudjacking and a preparation method thereof. The preformed material includes the following components by weight percent: 65 to 95 percent of silicate cement, 0.01 to 3 percent of high-range water-reducing agent, 0 to 1 percent of stabilizing agent, 0.05 to 5 percent of retarding agent, 1 to 20 percent of expanding agent, 0.2 to 2 percent of corrosion inhibitor, 0.01 to 1 percent of air entraining agent and 0 to 30 percent of mineral materials, wherein by uniformly and proportionally mixing the silicate cement, the high-range water-reducing agent, the stabilizing agent, the retarding agent, the expanding agent, the corrosion inhibitor, the air entraining agent and the mineral materials, the post-tensioned prestressing pipeline vacuum grouting or mudjacking preformed material can be obtained. After being uniformly mixed and stirred with water with neutral pH value according to the water cement ratio ranging from 0.24 to 0.32, the preformed material can be used, the obtained grouting material has the advantages of low water cement ratio, favorable flowability, no water bleeding and delamination, and favorable pumpability; meanwhile, the preparation method of the preformed material is simple and the raw material sources of the preformed material are wide.
Owner:HUBEI CHIDGE TECH

Method for reinforcing construction structure by fiber knitted net and fine concrete

The invention belongs to the technical field of concrete reinforcement and relates to a method for reinforcing concrete with a fibrage net and a cement-based material. The method is to pour the fibrage net the total thickness of which is between 10 and 20 millimeters and fine concrete on the outer surface of a structure, and is characterized by comprising the following steps that: drilling holes on the surface of the structure in the process of construction; using the short end foot of a U-shaped shear resistant pin of which the two end feet have different lengths to hook the fibrage net, and inserting the long end foot thereof into the hole after a building structural adhesive is smeared on the long end foot; spraying the fine concrete after the adhesive is solidified; using the short end foot of a U-shaped hook of which the two end feet have different lengths to hook a second layer fibrage net, and inserting the long end foot thereof to the fine concrete; and spraying the fine concrete. The method can avoid the generation of interface micro cracks at high stress, effectively prevent interface peeling damages, reinforces building structures reliably, simply, efficiently and environmental protection, and is applicable to reinforcing and repairing various types of structures.
Owner:浙江固邦新材料有限公司

Foam concrete and preparing process thereof

The invention discloses foam concrete and a preparation method thereof. The foam concrete comprises a gelling material, light aggregate, water, admixture and foaming agent. The preparation method comprises the following steps: (1) pre-treating raw materials to prevent hard lumps and hard grains in the raw materials from depositing in foam slurry; (2) weighing each component according to a proportion; (3) preparing and adding foaming solution; (4) loading and stirring, namely, adding water into a stirrer, starting the stirrer, and adding cement, coal ash, perlite, waterproof agent, anti-freezing agent, water reducing agent and fiber into the stirrer in turn; (5) foaming, namely, foaming at the same time of stirring the slurry, sealing a valve firstly and then pressurizing the valve by an air compressor; (6) adding foam, namely, after the gelling slurry is well prepared, adding the foam into the gelling slurry under the state of stirring without stopping the stirrer; and (7) casting and molding, namely, when the slurry surface has no floating foam, finishing the preparation of the foam slurry. The foam concrete has the functions of light weight, water proofing, fire resistance, heat insulation, freezing resistance, cracking resistance, shock resistance and the like, and is particularly suitable for engineering insulating layers in cold areas and water-blocking and shock-resistant layers of underground engineering.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI

Method for producing baking-free bricks by using phosphorous gypsum based cementitious material to solidify yellow phosphorous slags

The invention provides a method for producing baking-free bricks by using phosphorous gypsum based cementitious material to solidify yellow phosphorous slags. 1) The raw materials and formula of the invention are as follows: (1) the phosphorous gypsum cementitious material: 40-60 parts of phosphorous gypsum, 0-30 parts of yellow phosphorous slags, 0-30 parts of pulverized fuel ash, 0-5 parts of blast furnace slag, 10-15 parts of calcined lime, and 0-10 parts of carbide slag; (2) the mateirals of the baking-free brick green bodies: 100 parts of phosphorous gypsum cementitious material, 150-300parts of yellow phosphorous slags raw materials, 2-4 parts of activator, 0.2-1 part of auxiliary agent, and 10-40 parts of water. 2) The preparation method: the baking-free bricks are produced throughthe steps of treating raw materials, mixing the solution with additive, preparing brick blanks and moulding and conserving. In the production process of the invention, no organic matter is added, thus completely avoiding the pollution problems of toxic substance caused by degradation of organic materials, and the release of additive and volatilization of residues, and having the advantages of lowcost, good physical property, high production efficiency, saving of energy consumption and non environmental pollution.
Owner:KUNMING UNIV OF SCI & TECH

Collaborative operation system and method, concrete pumping apparatus and agitating truck

The invention relates to a collaborative operation system and method, a concrete pumping apparatus and an agitating truck. A detection device in the collaborative operation system detects concrete level information and/or concrete remain information in a hopper; and a control device receives a detection signal and controls the discharge speed of the agitating truck according to a prestored control strategy, so that the concrete in the hopper can not overflow or be pumped emptily, or the level of the concrete in the hopper is maintained to a certain level, thereby implementing collaborative operation between the pumping truck and the agitating truck. By using the invention, the pumping truck and the agitating truck can implement collaborative operation at the concrete construction site, and one operator can be saved. The invention also provides a pumping apparatus provided with the detection device and an agitating truck provided with the control device, so that the pumping apparatus and the agitating truck have the conditions for collaborative operation. Besides, the invention also provides a collaborative operation method, according to which the collaborative operation between the agitating truck and the pumping equipment apparatus can be controlled.
Owner:SANY HEAVY IND CO LTD (CN)

Efficient concrete stirring device for civil engineering construction

The invention discloses an efficient concrete stirring device for civil engineering construction. The efficient concrete stirring device for civil engineering construction comprises a bottom plate, wherein a left vertical column and a right vertical column are vertically and fixedly installed on the bottom plate, a top plate is horizontally and fixedly installed at the upper ends of the left vertical column and the right vertical column, a slide plate is horizontally and slidably arranged on a limit hanging frame, a second rack is arranged on the front surface of the slide plate, a horizontalextension plate is horizontally and fixedly installed on the right sidewall of the left vertical column, and a second bevel gear in engagement connection with a first bevel gear and a third bevel gearis rotationally arranged on a support; and a limit sleeve is arranged on the outer sidewall of a gantry stirring frame, and a slide rod is horizontally and slidably arranged on the limit sleeve. Theefficient concrete stirring device for civil engineering construction is ingenious in structure and reasonable in design; the gantry stirring frame drives stirring blades on the inner sidewall of thegantry stirring frame to stir concrete while a stirring shaft drives the stirring blades to carry out rotary stirring on the concrete in a stirring bucket; and moreover, the rotation directions of thegantry stirring frame and the stirring shaft are opposite, so that the stirring efficiency for the concrete is greatly increased, and the mixing effect for the concrete is promoted due to the rotation of the stirring bucket.
Owner:黄波
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products