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

Cement grouting material adopting quartz sand and iron tailings as aggregates

A technology for cement grouting and iron tailings, applied in the field of cement grouting material, can solve the problems of no fluidity, only 20MP compressive strength, and no field application conditions, and achieves low cost, sufficient supply, and simple processing and preparation. Effect

Inactive Publication Date: 2016-01-27
SHENYANG JIANZHU UNIVERSITY
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN1039788A discloses a method for making ultra-high-strength cement materials, and its compressive strength can reach 150MPa, but the material itself does not have fluidity, and the process system is made by special hot pressing, which does not have field application conditions; Chinese patent CN1271696A discloses A high-strength superfluid expansion cement grout was developed, its 28d compressive strength can reach 90MPa, but its 1d compressive strength is only 20MPa

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
  • Cement grouting material adopting quartz sand and iron tailings as aggregates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A cement grouting material with quartz sand and iron tailings as aggregates, prepared from the following raw materials and mass parts: 90 parts of cement, 40 parts of quartz sand, 60 parts of iron tailings, fly ash 10 parts, 1 part of silica fume, 0.6 parts of water reducer, and 0.2 parts of defoamer.

Embodiment 2

[0016] A cement grouting material with quartz sand and iron tailings as aggregates, which is prepared from the following raw materials according to the ratio of parts by mass: 90 parts of cement, 40 parts of quartz sand, 60 parts of iron tailings, and 10 parts of fly ash parts, 8 parts of silica fume, 0.7 parts of water reducer, and 0.6 parts of defoamer.

Embodiment 3

[0018] A cement grouting material with quartz sand and iron tailings as aggregates, which is prepared from the following raw materials according to the ratio of parts by mass: 90 parts of cement, 40 parts of quartz sand, 60 parts of iron tailings, and 10 parts of fly ash parts, 10 parts of silica fume, 0.8 parts of water reducer, and 0.8 parts of defoamer.

[0019] The index performance of embodiment 1-3 is as follows:

[0020]

[0021] As can be seen from the data in the table, the index properties of Examples 1-3 meet the requirements of the JC / T986-2005 "Cement Grouting Material" standard, and the compressive strengths of 1d, 3d, and 28d are respectively greater than 22MPa, 40MPa, and 70MPa; the initial fluidity and 30min fluidity retention values ​​are greater than 260mm and 230mm respectively; 1d vertical expansion rate is greater than 0.020%.

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
Login to View More

Abstract

The invention provides a cement grouting material adopting quartz sand and iron tailings as aggregates. The cement grouting material comprises, by mass, 90 parts of cement, 40 parts of quartz sand, 60 parts of iron tailings, 10 parts of fly ash, 1-10 parts of silica fume, 0.6-0.8 parts of a water reducer and 0.2-0.8 parts of an antifoaming agent. The cement grouting material has the following advantages: 1, a large amount of the iron tailings is used, and industrial solid wastes are comprehensively utilized, so changing of wastes into valuables, energy saving and emission reduction purposes are realized; 2, the cement grouting material is prepared from high quality raw materials through optimizing a ratio, so sufficient freight sources, easily available raw materials, non-volatility, no pollution or harms, simple processing preparation and low cost are realized; and 3, performance indexes of the cement grouting material accord with JC / T 986-2005 Cement Grouting Material standard requirements.

Description

technical field [0001] The invention relates to a cement grouting material, in particular to a cement grouting material with quartz sand and iron tailings as aggregates, belonging to the field of comprehensive utilization of industrial solid waste. Background technique [0002] Cement-based grouting material is a powdery material prepared by pre-mixing high-strength grade cement, preferably graded aggregates, micro-modified admixtures and admixtures in an appropriate proportion in the factory. When used, just add water and stir to become a self-leveling high-strength non-shrinkage grouting material with uniform consistency and suitable consistency that can meet the construction requirements. Cement-based grouting material has many excellent properties such as good fluidity, self-compacting, high strength, and no shrinkage at room temperature. Many aspects such as patching have extremely wide applications. my country's National Development and Reform Commission promulgate...

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): C04B28/02C04B14/06C04B18/08C04B18/12C04B111/70
CPCY02W30/91
Inventor 孙小巍郜世杰蒋宏伟马振宁马建岩许峰
Owner SHENYANG JIANZHU UNIVERSITY