High-fluidity concrete additive and preparation method thereof

A high-fluidity, concrete technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve problems that cannot be applied immediately, and achieve reduced concrete mixing water consumption, high economic benefits, and improved fluidity Effect

Inactive Publication Date: 2015-05-06
TONGJI UNIV
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these studies involve the development of new superplasticizers, which cannot be immediately applied in actual production

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
  • High-fluidity concrete additive and preparation method thereof
  • High-fluidity concrete additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Table 1 High fluidity concrete admixture formula (mass ratio, unit: parts by mass)

[0021]

1 2 3 fly ash 1000 1000 1000 molasses 2 wood calcium 3 sodium gluconate 1

[0022] The preparation method is that the surfactant material is dissolved in water to prepare a surface modification material solution with a concentration of 20%; the fly ash is boiled by air fluidization, and then according to the mixing ratio in Table 1, ultrasonic The atomization device mixes the atomized surface modification material solution particles and the fly ash material evenly to obtain the patented product.

[0023] Prepare high-fluidity concrete admixtures (respectively denoted as CHL-1 and CHL-3) according to Scheme 1 and Scheme 3 in Table 1, and then prepare C40 concrete according to the material ratio in Table 2 (respectively denoted as HNT- 1 and HNT-3). In order to compare the traditional method, the same amount of or...

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 relates to a high-fluidity concrete additive and a preparation method thereof. The high-fluidity concrete additive comprises a surfactant material and coal ash. The preparation method comprises the step of adequately mixing boiling coal ash with an atomized surfactant solution. According to the high-fluidity concrete additive, the fluidity and the gradual fluidity of concrete can be improved, the activity index of coal ash can be improved, and the adaptability of a water reducer can be improved; the high-fluidity concrete additive is low in cost and easy to prepare and is particularly applicable to pump concrete or self-compacting concrete with relatively high requirement for fluidity.

Description

technical field [0001] The invention relates to a high fluidity concrete admixture and a preparation method thereof. Background technique [0002] Fly ash is a commonly used concrete mineral admixture, which has many functions such as improving the workability of slurry, reducing the heat release of hydration, improving durability, and reducing the cost of concrete production. Its microscopic morphology is mostly spherical particles, which has a "ball effect" in concrete, which can significantly improve the fluidity of fresh concrete, improve the constructability and pumpability of concrete. Studies have shown that when 30% fly ash is used instead of cement, the slump can be increased by 20mm~40mm for fresh concrete without water reducer. However, there is always a small amount of unburned carbon particles in fly ash, especially low-quality fly ash usually has a high carbon content, and these carbon particles with a porous structure have a strong effect on concrete admi...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/08C04B20/02C04B24/10C04B24/18
CPCY02W30/91
Inventor 朱洪波李晨
Owner TONGJI UNIV
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