Steel pipe gypsum mortar and waste concrete combined column and preparation method thereof

A technology for waste concrete and waste concrete blocks, which can be applied to columns, piers, pillars, etc., and can solve problems such as poor strength, poor bonding strength between filling materials and steel pipes, and slow setting speed.

Active Publication Date: 2016-07-27
苏州三佳交通工程有限公司
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current waste concrete composite columns are generally filled with waste concrete blocks, cement, coal ash and other materials in steel pipes. This kind o...

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
  • Steel pipe gypsum mortar and waste concrete combined column and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] refer to figure 1 As shown, the steel pipe gypsum mortar waste concrete composite column provided by the present invention comprises a steel pipe 1, a gypsum mortar 2 and a waste concrete block 3 filled in the steel pipe 1, the two ends of the steel pipe 1 are sealed by end plates, and the gypsum mortar 2 is made of water, gypsum and Sand composition, the ratio of water, gypsum and sand is 0.3:1:1-0.5:1:1, the greater the mixing water consumption, the lower the strength, the better the fluidity, and the gypsum mortar 2 is also added with a retarder, retarder The coagulant is citric acid, which is used to adjust the flocculation time of the gypsum mortar 2. The maximum diameter of the waste concrete block 3 is 1 / 4-1 / 3 of the diameter of the steel pipe 1, and the minimum diameter of the waste concrete block 3 is 20-30mm.

[0019] refer to figure 1 As shown, in order to increase the structural strength, there are many pairs of transverse reinforcement sockets 4 arranged a...

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

No PUM Login to view more

Abstract

The invention discloses a steel pipe gypsum mortar and waste concrete combined column. The steel pipe gypsum mortar and waste concrete combined column is characterized by comprising a steel pipe, and gypsum mortar and a waste concrete block which are filled into the steel pipe, wherein the two ends of the steel pipe are sealed by end plates; a plurality of tamping holes are arrayed on a side wall of the steel pipe; a plurality of longitudinal steel bars are uniformly distributed in the circumference of the inner wall of the steel pipe. The invention further discloses a method for preparing the steel pipe gypsum mortar and waste concrete combined column. The steel pipe gypsum mortar and waste concrete combined column prepared by the invention has the characteristics of rapid hardening and early strengthening, and can rapidly reach a bearing capability; the strength of a member is mainly provided by a waste concrete block framework, so that the material cost can be reduced; furthermore, the gypsum mortar is only used as a cementing material and a joint filling material, and the outer part is restrained by the steel pipe, so that the determination of a weak interface between the gypsum mortar and the waste concrete block can be weakened, and the strength and ductility of the member are greatly improved.

Description

technical field [0001] The invention relates to a steel pipe gypsum mortar waste concrete composite column and a preparation method thereof. Background technique [0002] With the rapid development of the construction industry, the demolition, reconstruction and repair of villages and towns, the continuous development and large-scale construction of new urban areas and residential quarters, and the new construction of municipal public facilities will generate a large amount of construction waste. In addition, some building structures in our country are about to reach the design service life. According to statistics, my country's annual demolition projects account for 40% of the total construction projects, and every 10,000 square meters of demolition projects will generate 7,000-12,000 tons of construction waste. Using crushed construction waste as recycled aggregate can not only solve the shortage of natural aggregate resources, realize the regeneration and recycling of co...

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): E04C3/34
CPCE04C3/34
Inventor 吴冬雁赵俊亮孙林柱李桅
Owner 苏州三佳交通工程有限公司
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap