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

In-situ reaction-type concrete air entraining agent

A reaction, carbon atom technology, applied in the field of concrete air-entraining agent, can solve the problems of unreasonable bubble size, large loss of air content, insufficient air-entraining, etc., and achieve good air-entraining effect, low concrete strength, and good foam stabilization effect. Effect

Active Publication Date: 2016-04-20
JIANGSU SOBUTE NEW MATERIALS +3
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: The patent of this invention mainly aims at the problems of insufficient air-entraining agent existing in existing concrete air-entraining agents, large loss of air content, unreasonable size of introduced air bubbles and affecting strength, etc., and provides a concrete air-entraining agent with a new molecular structure

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
  • In-situ reaction-type concrete air entraining agent
  • In-situ reaction-type concrete air entraining agent
  • In-situ reaction-type concrete air entraining agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Step 1: Add 1.0 mol of 2-butenol into a reaction flask equipped with a thermometer, dropping funnel, condenser, stirrer and tail gas conduit. The temperature was raised to 30°C under stirring, and 1.1 mol of chlorosulfonic acid was added to the reaction flask within 1 h. During the dropwise addition of chlorosulfonic acid, the reaction temperature was controlled at 30-50°C. After the dropwise addition, the reaction was continued at 30°C for 30 minutes. The system was then immediately neutralized to pH=5 with NaOH.

[0036] Step 2: in the drying flask that is equipped with thermometer, condenser and stirrer, add the unsaturated alcohol sulfate that obtains in the step 1 of 1.0mol and the HSi(OCH 3 ) 3 . The temperature was raised under stirring, and when the temperature reached 50°C, 0.07ml of 0.01mol / L isopropanol solution of chloroplatinic acid (amount of 1 ppm) was added dropwise, and the temperature was controlled at 50-80°C during the dropwise addition. After t...

Embodiment 2

[0040] Step 1: Add 1.0 mol of 3-methyl-7-heptenol into a reaction flask equipped with a thermometer, dropping funnel, condenser, stirrer and tail gas conduit. The temperature was raised to 30°C with stirring, and 1.2 mol of chlorosulfonic acid was added to the reaction flask within 1 h. During the dropwise addition of chlorosulfonic acid, the reaction temperature was controlled at 30-60°C. After the dropwise addition was completed, the reaction was continued at 50° C. for 10 minutes. The system was then immediately neutralized to pH=6 with KOH.

[0041] Step 2: in the drying flask that is equipped with thermometer, condenser and stirrer, add the unsaturated alcohol sulfate that obtains in the step 1 of 1.0mol and the HSi(OCH 2 CH3 ) 3 . The temperature was raised under stirring, and when the temperature reached 50°C, 0.9ml of 0.01mol / L chloroplatinic acid solution in isopropanol (amount of 10ppm) was added dropwise, and the temperature was controlled at 50-100°C during the...

Embodiment 3

[0045] Step 1: Add 1.0 mol of undecenyl alcohol into a reaction flask equipped with a thermometer, dropping funnel, condenser, stirrer and tail gas conduit. The temperature was raised to 30°C under stirring, and 1.0 mol of chlorosulfonic acid was added to the reaction flask within 1 h. During the dropwise addition of chlorosulfonic acid, the reaction temperature was controlled at 40-60°C. After the dropwise addition, the reaction was continued at 60°C for 60 min. The system was then immediately neutralized to pH=7 with KOH.

[0046] Step 2: in the drying flask that is equipped with thermometer, condenser and stirrer, add the unsaturated alcohol sulfate that obtains in the step 1 of 1.0mol and the HSi(OCH 2 CH 3 ) 3 . The temperature was raised under stirring, and when the temperature reached 50°C, 11.8ml of 0.01mol / L isopropanol solution of chloroplatinic acid (amount of 100ppm) was added dropwise, and the temperature was controlled at 60-90°C during the dropwise addition...

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
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a concrete air entraining agent molecule with a sulfate ion as a hydrophilic group and reactable alkoxysilane-modified aliphatic hydrocarbon as a hydrophobic part. The concrete air entraining agent molecule is prepared according to a molecular designing principle and has a structure shown in the formula (I). The invention also provides a preparation method of the above compound and a use of the compound as a concrete air entraining agent. The compound has surface activity and in-situ reactivity. The concrete air entraining agent has good air entraining effects at a low mixing ratio, reasonable entrained bubble size distribution, good foam stabilizing effects, high gas content and small influence on concrete strength.

Description

technical field [0001] The invention belongs to the field of building materials and relates to a concrete air-entraining agent. Background technique [0002] In the concrete mixing process, the air-entraining agent can be added to introduce a large number of uniform and stable micro-bubbles. The existence of these micro-bubbles plays an important role in improving the durability and freeze-thaw resistance of concrete. The most widely used air-entraining agents include rosin air-entraining agents, saponin air-entraining agents, alkylbenzene sulfonate air-entraining agents and fatty acid salt air-entraining agents. With the development of construction projects, these traditional air-entraining agent products can no longer keep up with the requirements of modern high-performance concrete, and problems such as insufficient air-entrainment, poor foam stabilization, and impact on strength have been exposed. [0003] At present, the development of air-entraining agents adopts more...

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): C04B24/42
Inventor 刘冠男乔敏冉千平高南箫
Owner JIANGSU SOBUTE NEW MATERIALS
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