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

Large-water-absorption-rate aggregate surface treatment agent

A technology of surface treatment agent and water absorption rate, which is applied in the field of high-performance concrete, and can solve the problems of reduced bonding force of cement paste and reduced water absorption rate of aggregates, etc.

Active Publication Date: 2016-09-21
CHINA ROAD & BRIDGE +1
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above technical measures have more or less disadvantages in the actual processing of aggregates with high water absorption rate. Although the film formation on the surface of polymer can greatly reduce the water absorption rate of aggregates, the difference between the treated aggregate and the cement paste in concrete The binding force will be reduced; the water absorption rate of the aggregate will decrease slightly after the cement slurry surface coating treatment

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
  • Large-water-absorption-rate aggregate surface treatment agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Mix 20g of silica fume, 20g of limestone powder, 20g of superfine fly ash, 15g of silane, 15g of polyvinyl alcohol, 5g of waterproof alloy powder, and 2g of polycarboxylate superplasticizer to make a large water absorption Aggregate surface treatment agent, add 100g of water to make a treatment agent slurry, soak 1000g of high water absorption aggregate, take out the soaked aggregate, dry it naturally, test its saturated surface dry water absorption, record it as L 1 .

Embodiment 2

[0045] Mix 10g of silica fume, 30g of limestone powder, 30g of superfine fly ash, 10g of silane, 10g of polyvinyl alcohol, 5g of waterproof alloy powder, and 5g of polycarboxylate superplasticizer to make a large water absorption rate Aggregate surface treatment agent, add 100g of water to make a treatment agent slurry, soak 1000g of high water absorption aggregate, take out the soaked aggregate, dry it naturally, test its saturated surface dry water absorption, record it as L 2 .

Embodiment 3

[0047]Mix 29g of silica fume, 10g of limestone powder, 10g of superfine fly ash, 10g of silane, 20g of polyvinyl alcohol, 10g of waterproof alloy powder, and 1g of polycarboxylate superplasticizer to make a large water absorption Aggregate surface treatment agent, add 100g of water to make a treatment agent slurry, soak 1000g of aggregate with high water absorption rate, take out the soaked aggregate and dry it naturally, test its saturated surface dry water absorption rate, record it as L 3 .

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 large-water-absorption-rate aggregate surface treatment agent, and belongs to the technical field of high performance concrete; the surface treatment agent is composed of the components by the weight percentage: 10-30% of silica fume, 10-30% of a limestone powder, 10-30% of ultra-fine fly ash, 10-20% of silane, 10-20% of polyvinyl alcohol, 5-10% of a waterproof alloy powder, and 1-5% of a polycarboxylate water reducing agent. The large-water-absorption-rate aggregate surface treatment agent is easy to use; while the water absorption rate of a large-water-absorption-rate aggregate is reduced, the combination of the aggregate and a cement paste in concrete is not affected, the performance of the large-water-absorption-rate aggregate is improved, and the application of the large-water-absorption-rate aggregate is promoted.

Description

technical field [0001] The invention relates to an aggregate surface treatment agent, in particular to an aggregate surface treatment agent with high water absorption rate, and belongs to the technical field of high-performance concrete. Background technique [0002] With the construction of domestic civil engineering, water conservancy, transportation and other infrastructure and the promotion of the national "Belt and Road" strategy, the consumption of concrete, the largest civil engineering material, has reached 5 billion cubic meters worldwide, and aggregate accounts for more than 70% of the weight of concrete. The amount of aggregate is increasing, and some places have to use aggregate with higher water absorption. [0003] As the water absorption rate of aggregate increases, the compressive strength and flexural strength of concrete become lower, and the frost resistance, impermeability, salt freeze erosion resistance, and carbonation resistance performance become wors...

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): C04B20/10
CPCC04B20/1062C04B20/10C04B20/107C04B20/1051C04B20/1033C04B20/1029
Inventor 夏京亮胡钊光周永祥熊仕伶李连友王晶杨小刚王永海李康雷瑜
Owner CHINA ROAD & BRIDGE
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