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

Viscosity-reducing agent for vibration-free concrete and preparation and use methods thereof

A concrete and viscosity reducer technology, applied in the field of concrete admixtures, can solve the problems of poor viscosity reduction effect and concrete strength reduction, and achieve the effects of ensuring strength, improving fluidity and reducing pumping resistance

Pending Publication Date: 2020-04-10
河北铁园科技发展有限公司
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of poor viscosity-reducing effect of existing viscosity-reducing and flow-increasing products, reduction of concrete strength and appearance of honeycomb pockmarks, the present invention provides a viscosity-reducing agent for vibration-free concrete

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
  • Viscosity-reducing agent for vibration-free concrete and preparation and use methods thereof
  • Viscosity-reducing agent for vibration-free concrete and preparation and use methods thereof
  • Viscosity-reducing agent for vibration-free concrete and preparation and use methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides a viscosifier for non-vibration concrete, which includes the following components in terms of weight percentage: 15% of microsilica fume, 25% of ultrafine slag powder, 20% of glass powder, and microbead fly ash particles 35%, alcohol amine compound 0.2%, defoamer 0.1%, air-entraining agent 0.1% and inorganic activator 4.6%.

[0032] The specific surface area of ​​the above micro silica fume is 15000m 2 / Kg, loose bulk density is 330kg / m 3 , wherein the mass content of silicon dioxide is 92%; the specific surface area of ​​the above ultrafine slag powder is 1500m 2 / Kg; the fineness of the above-mentioned glass powder is 300 orders; the water demand ratio of the above-mentioned microbead fly ash particles is 85%, and the 7-day activity index is 85%; the above-mentioned defoamer is tributyl phosphate; the above-mentioned air-entraining agent It is triterpene saponin; the above-mentioned inorganic stimulant is gypsum; the above-mentioned alcohol ...

Embodiment 2

[0038] This embodiment provides a viscosifier for vibration-free concrete, which comprises the following components in terms of weight percentage: 10% microsilica fume, 30% ultrafine slag powder, 14.65% glass powder, microbead fly ash particles 35%, alcohol amine compound 0.1%, defoamer 0.1%, air-entraining agent 0.15% and inorganic activator 10%.

[0039] The specific surface area of ​​the above micro silica fume is 20000m 2 / Kg, loose bulk density is 350kg / m 3 , wherein the mass content of silicon dioxide is 90%; the specific surface area of ​​the above ultrafine slag powder is 10000m 2 / Kg; the fineness of the above-mentioned glass powder is 400 orders; the water demand ratio of the above-mentioned microbead fly ash particles is 87%, and the 7-day activity index is 100%; the above-mentioned defoamer is organosilicon oil; the above-mentioned air-entraining agent is three Terpene saponin; the above-mentioned inorganic stimulant is sodium carbonate; the above-mentioned alcoh...

Embodiment 3

[0045]This embodiment provides a viscosifier for non-vibration concrete, which includes the following components in terms of weight percentage: 30% of microsilica fume, 5% of ultrafine slag powder, 5% of glass powder, and microbead fly ash particles 50%, alcohol amine compound 0.5%, defoamer 1%, air-entraining agent 0.5% and inorganic activator 8%.

[0046] The specific surface area of ​​the above micro silica fume is 25000m 2 / Kg, loose bulk density is 400kg / m 3 , wherein the mass content of silicon dioxide is 95%; the specific surface area of ​​the above ultrafine slag powder is 800m 2 / Kg; the fineness of the above-mentioned glass powder is 500 orders; the water demand ratio of the above-mentioned microbead fly ash particles is 90%, and the 7-day activity index is 95%; the above-mentioned defoamer is an organosilicon defoamer; the above-mentioned entrained air The agent is triterpene saponin; the above-mentioned inorganic stimulant is sulfur ash; the above-mentioned alcoh...

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
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of concrete admixtures, and specifically discloses a viscosity-reducing agent for vibration-free concrete and preparation and use methods thereof. The viscosity-reducing agent includes, by weight, 10-30% of silica fume, 5-30% of ultra-fine slag powder, 5-20% of glass powder, 10-50% of microbead fly ash particles, 0.1-0.5% of an alcohol amine compound, 0.1-1% of a defoamer, 0.1-0.5% of an air entraining agent and 1-10% of an inorganic activator. The prepared viscosity-reducing agent can reduce viscosity of concrete, increase fluidity, enhance construction operability, and effectively increase strength of concrete.

Description

technical field [0001] The invention relates to the technical field of concrete admixtures, in particular to a viscosity reducer for vibration-free concrete and a preparation and use method thereof. Background technique [0002] Self-leveling and self-compacting vibration-free concrete is playing an increasingly important role in engineering construction. Vibration-free concrete saves labor costs and reduces construction difficulty. Therefore, it is used in subway construction, building thin-wall pouring, and steel pipe arch bridges. It is widely used in construction and other fields. However, in the mix ratio of self-leveling concrete, the amount of cementitious material is large and the amount of water is low, which leads to the increase of the yield shear stress of the concrete mixture. In addition, the huge amount of engineering construction in my country and the poor quality of sand and gravel aggregates lead to concrete mixing. Concrete has problems such as high viscos...

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): C04B24/12C04B24/42
CPCC04B40/0039C04B18/146C04B18/141C04B14/22C04B18/082C04B24/122C04B24/003C04B24/10C04B22/143C04B24/42C04B22/10C04B22/145
Inventor 郭晓磊高翯高勇利苏亚楠张琪石会强常会会郑运刚
Owner 河北铁园科技发展有限公司
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