Unlock instant, AI-driven research and patent intelligence for your innovation.

Sprayed concrete containing fly ash of high volume

A technology of sprayed concrete and fly ash, which is applied in the field of building materials, can solve the problems of high water-cement ratio, poor density, high cost, and large dosage, and achieve the effect of good density, low cost, and small water-cement ratio

Inactive Publication Date: 2018-03-27
UNIV OF JINAN
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a large amount of fly ash sprayed concrete, which aims to solve the problems of high cement consumption and high cost of sprayed concrete prepared in the prior art, and the problem of high water-cement ratio and poor compactness

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A large amount of fly ash sprayed concrete, the parts by weight of each component are as follows: cement 240, fly ash 370, fine aggregate 1000, coarse aggregate 800, water reducing agent 6, viscosity adjustment component 0.5, quick setting Agent 18;

[0016] Described fly ash is secondary fine ash, and silicon dioxide content is 55% in the chemical composition;

[0017] The fine aggregate is continuously graded machine-made sand, and the stone powder content is 2%;

[0018] The water reducer is a naphthalene powder water reducer with a water reducing rate of 30%;

[0019] The viscosity adjusting component is redispersible latex powder with a water absorption rate of 80.

Embodiment 2

[0021] A large amount of fly ash sprayed concrete, the parts by weight of each component are as follows: cement 300, fly ash 290, fine aggregate 850, coarse aggregate 1000, water reducer 10, viscosity adjustment component 1.5, quick setting Agent 12;

[0022] Described fly ash is secondary fine ash, and silicon dioxide content is 45% in the chemical composition;

[0023] The fine aggregate is continuously graded machine-made sand, and the stone powder content is 7%;

[0024] The water reducer is a naphthalene powder water reducer with a water reducing rate of 20-30%;

[0025] The viscosity adjusting component is redispersible latex powder with a water absorption rate of 65.

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
water absorptionaaaaaaaaaa
Login to View More

Abstract

The invention discloses sprayed concrete containing fly ash of high volume. The concrete comprises the following raw materials in parts by weight: 240-300 parts of cement, 290-370 parts of fly ash, 850-1000 parts of fine aggregates, 800-1000 parts of coarse aggregates, 6-10 parts of a water reducer, 0.5-1.5 parts of a viscosity adjusting component, and 12-18 parts of an accelerator. The amount ofcement of the sprayed concrete is small, the cost is low, water cement ratio is low, and packing is better.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a large-volume fly ash sprayed concrete. Background technique [0002] Shotcrete is a kind of concrete mixture mixed with cementitious materials, aggregates, admixtures, etc. in a certain proportion, which is sent to the spraying equipment, transported to the spraying port by means of compressed air or other power, and sprayed to the sprayed surface at high speed. of concrete. Shotcrete has the advantages of fast construction speed, short period, high early strength, self-compacting without vibration, etc. It has broad application prospects in mining engineering, railway engineering, tunnel engineering and other fields. However, the existing shotcrete has the problems of high cement consumption, high cost, and high water-cement ratio, which seriously restricts the popularization and application of shotcrete. Contents of the invention [0003] The purpose of the present inven...

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): C04B28/04C04B18/08
CPCC04B18/08C04B28/04C04B14/06C04B14/28C04B2103/302C04B2103/0057C04B2103/12Y02W30/91
Inventor 闫振芦令超李来波
Owner UNIV OF JINAN
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com