Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Prestressed concrete pile and production method thereof

A technology of concrete piles and prestressing, which is applied in the field of production of prestressed concrete piles and prestressed concrete piles, to achieve the effects of improving workability, delaying initial setting time, and improving interface properties

Inactive Publication Date: 2015-03-18
QINGDAO XINGHE BUILDING MATERIAL
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the prestressed concrete piles produced in China are difficult to meet the requirements of high frost resistance, high resistance to sulfate erosion and high resistance to chloride ion penetration of prestressed concrete piles in architectural design and actual construction.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Prestressed concrete pile and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A prestressed concrete pile is cast by pumping high-strength concrete, and the pumping high-strength concrete includes the following components: cement, fine aggregate, coarse aggregate, water, mineral active material and admixture, and the admixture Including water reducer and retarder, the specific density of the concrete is 2450kg / m 3 , the amount of cement in the concrete per cubic meter is 450 kg, the fine aggregate is medium sand and its consumption is 530 kg, the fineness modulus of the medium sand is 2.3, and the SiO in the medium sand 2 content of 90%, the coarse aggregate is crushed stone, the amount of crushed stone is 1210㎏, the particle size of crushed stone is 8mm, the amount of water is 140㎏, the mineral active material is fly ash and its mixed The amount is 16% of the cement dosage, the water reducer is polycarboxylate high-performance water reducer and its dosage is 1.8% of the cement dosage, and the dosage of the retarder is 1.8% of the cement dosage. ...

Embodiment 2

[0035] A prestressed concrete pile is cast by pumping high-strength concrete, and the pumping high-strength concrete includes the following components: cement, fine aggregate, coarse aggregate, water, mineral active material and admixture, and the admixture Including water reducer and retarder, the concrete has a bulk density of 2470kg / m 3 , the amount of cement in the concrete per cubic meter is 460 kg, the fine aggregate is medium sand and its consumption is 540 kg, the fineness modulus of the medium sand is 2.4, and the SiO in the medium sand 2 content of 95%, the coarse aggregate is crushed stone, the amount of crushed stone is 1210kg, the particle size of crushed stone is 15mm, the amount of water is 145kg, the mineral active material is fly ash and its mixed The amount is 16% of the cement dosage, the water reducer is polycarboxylate high-performance water reducer and its dosage is 1.8% of the cement dosage, and the dosage of the retarder is 1.8% of the cement dosage. 0...

Embodiment 3

[0044] A prestressed concrete pile is cast by pumping high-strength concrete, and the pumping high-strength concrete includes the following components: cement, fine aggregate, coarse aggregate, water, mineral active material and admixture, and the admixture Including water reducer and retarder, the specific density of the concrete is 2480kg / m 3 , the consumption of the cement in the concrete per cubic meter is 470 kg, the fine aggregate is coarse sand and its consumption is 550 kg, the fineness modulus of the coarse sand is 2.8, and the SiO in the coarse sand 2 content of 92%, the coarse aggregate is pebbles, the amount of pebbles is 1220kg, the particle size of pebbles is 10mm, the amount of water is 150kg, the mineral active material is zeolite powder and its dosage is the above 17% of the amount of cement, the water reducer is polycarboxylate high-performance water reducer and its dosage is 1.9% of the amount of cement, and the amount of retarder is 0.15% of the amount of c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Densityaaaaaaaaaa
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a pretressed concrete pile which is casted by pumped high-strength concrete. The pumped high-strength concrete comprises the following ingredients: cement, fine aggregate, coarse aggregate, water, mineral active material, and additive; the additive comprises water reducing agent and retarding admixture; the volume weight of the concrete is 2420 kilograms per cubic meter to 2550 kilograms per cubic meter; in each cubic meter of the concrete, the dosage of the cement is 440 kilograms to 490 kilograms, the dosage of the fine aggregate is 530 kilograms to 560 kilograms, the dosage of the coarse aggregate is 1210 kilograms to 1230 kilograms, the dosage of water is 140 kilograms to 160 kilograms, the mixing amount of the mineral active material is 16% to 18% of the dosage of the cement, the mixing amount of the water reducing agent is 1.8% to 2% of the dosage of the cement, and the mixing amount of the retarding admixture is 0.15% of the dosage of the cement. The invention further discloses a production method of the prestressed concrete pile. The prestressed concrete pile has high strength and good durability.

Description

technical field [0001] The invention belongs to the field of production and processing of building materials, and in particular relates to a prestressed concrete pile and a production method of the prestressed concrete pile. Background technique [0002] Prestressed concrete piles have high single pile bearing capacity, good durability, factory production, reliable pile quality, good driving resistance, strong penetration, good bending and tensile properties, fast construction, high work efficiency, It is widely used in industrial buildings, civil buildings, bridges, ports and other basic projects due to the advantages of civilized construction site, convenient supervision and inspection, good economy, lower price per unit bearing capacity than ordinary piles, small settlement, no sandstone and cement pollution, etc. . The application range of prestressed concrete piles is becoming wider and wider, but harsh geological environments, such as oceans, ports, severe cold region...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E02D5/58B28B23/06
CPCC04B28/00E02D5/58E02D2250/0007E02D2250/0023E02D2250/0046
Inventor 王传波王风民田斌邢正涛邓国威
Owner QINGDAO XINGHE BUILDING MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com