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

Aluminate cement material containing mineral in Q phase

A technology of aluminate cement and cement material, applied in the field of cement materials, can solve the problems of low firing temperature, high early strength, poor hydration activity of dicalcium aluminosilicate, etc., and achieves low firing temperature and low production cost , Highlight the effect of early strength and fast hard performance

Inactive Publication Date: 2006-07-26
UNIV OF JINAN
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantage of poor hydration activity of dicalcium aluminosilicate, the present invention provides a new type of aluminate cement material modified by Q-phase cement, which has good hydration activity, low firing temperature and high early strength The advantages

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
  • Aluminate cement material containing mineral in Q phase
  • Aluminate cement material containing mineral in Q phase

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] 1. the weight percent of the clinker mineral of each cement system in the Q phase aluminate cement system of the present invention, firing condition and compressive strength are:

[0033] (1) Q phase-CA-C 12 A 7 Cement system:

[0034] The weight percentage of clinker mineral is:

[0035] Q phase (C 6 A 4 MS): 40-80%

[0036] Monocalcium aluminate: 10-50%

[0037] Calcium heptaaluminate: 5-10%

[0038] The firing temperature of cement is: 1230~1300℃; the holding time is 20~60min;

[0039] The compressive strength of cement mortar: 1d is 35-50MPa,

[0040] 3d is 50~80MPa,

[0041] 28d is 70-106 MPa.

[0042] (2) Q phase-CA-C 12 A 7 -C 4 AF cement system:

[0043] The weight percentage of clinker mineral is:

[0044] Q phase (C 20 A 13 m 3 S 3 ): 40~80%

[0045] Monocalcium aluminate: 10-50%

[0046] Calcium heptaaluminate: 5-10%

[0047] Tetracalcium aluminoferrite: 5-10%

[0048] The firing temperature of cement is:...

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
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides an aluminate cement material containing. Q phase mineral that weight percenge is 40-80. The invention cement material has advantages of excellent functin of early strength and quick hardening, low firing temp., chalk containing magnesium-silicon and low-grade bauxite can be used as raw material to produce the cement material with high aluminium and low calcium.

Description

(1) Technical field [0001] The invention belongs to the technical field of cement materials, and relates to an aluminate cement material containing Q phase (The Quaternary Phase) minerals. (2) Background technology [0002] High alumina cement system usually refers to monocalcium aluminate (CaO.Al 2 o 3 Abbreviated as CA)-calcium dialuminate (CaO.2Al 2 o 3 CA for short 2 )-dicalcium aluminosilicate (2CaO.Al 2 o 3 .SiO 2 C for short 2 AS, also known as calcium aluminum feldspar) system, in this system CA and CA 2 Both are minerals with good hydration activity, and C 2 AS is a mineral with poor hydration activity, and its content accounts for about 20% of the system composition. If this mineral can be transformed into a Q-phase mineral with good hydration activity under certain conditions, the hydration activity of cement will be significantly improved. Q phase is CaO-MgO-Al 2 o 3 -SiO 2 A thermodynamically stable phase in the quaternary system, studied by Parker....

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 Patents(China)
IPC IPC(8): C04B7/32C04B12/00
Inventor 姜奉华
Owner UNIV OF JINAN
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