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Composite cementitious material for building mortar and its preparation method

A compound glue and mortar technology, applied in the field of building materials, can solve the problems of increased manufacturing cost, increased logistics resistance, and low output per machine time, and achieve the effects of accelerating logistics speed, increasing machine probability, and reducing energy consumption

Inactive Publication Date: 2007-05-30
阜新兴国建材厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the solid waste fly ash produced by the combustion of boilers in coal-fired thermal power plants is the main source of cementing materials. The mortar cementing materials composed of cement clinker and gypsum do not contain phosphogypsum, zeolite, quicklime and blast furnace slag. Poor workability, low strength
In addition, because the dry fly ash collected by electrostatic precipitator is pulverized and mixed in the ball mill, it will increase the logistics resistance, low output per unit, high energy consumption, and increase the manufacturing cost

Method used

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  • Composite cementitious material for building mortar and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Building mortar composite cementing materials use fly ash and cement clinker as main raw materials, add blast furnace slag, zeolite, phosphogypsum and quicklime as auxiliary materials to produce 100 tons of cementing materials; cement clinker 20T, fly ash 40T, phosphogypsum 5T, Quicklime 15T, zeolite 10T, slag 10T, the above raw materials are sent into their respective raw material bins, and after being batched by a computer, they are evenly fed to the ball mill to grind and produce M2.5 cementing materials.

Embodiment 2

[0011] Building mortar composite cementing materials use fly ash and cement clinker as the main raw materials, add blast furnace slag, zeolite, phosphogypsum, and quicklime as auxiliary materials to produce 100 tons of cementing materials, cement clinker 26T, fly ash 36T, phosphogypsum 5T, 13T of quicklime, 10T of zeolite, and 10T of blast furnace slag. The above raw materials are sent into their respective raw material bins, and after being batched by a computer, they are evenly loaded into a ball mill, and ground to produce cemented materials except for M5 and M7.5.

Embodiment 3

[0013] Building mortar composite cementing materials use fly ash and cement clinker as the main raw materials, add blast furnace slag, zeolite, phosphogypsum, and quicklime as auxiliary materials, and produce 95 tons of cementing materials, cement clinker 40T, fly ash 30T, phosphogypsum 3T , 7T of blast furnace slag, 5T of zeolite, and 10T of quicklime. The above raw materials are sent into their respective raw material bins, and after batching by a computer, they are evenly loaded into a ball mill to grind and produce M10 cementing materials.

[0014] Checked:

[0015] Quality index items Standard value Measured value

[0016] ●Fineness (%) 80um sub-hole sieve, the sieve residue shall not be greater than 10 6.5

[0017] ●Stability Boiling method must pass Pass

[0018] Setting time Initial setting shall not be earlier than 45min, 5:28'

[0019] The final setting shall not be later than 12h 8:45'

[0020] ●Sulfur trioxide (%)≤4.0 2.2

[0021] Quality in...

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Abstract

The present invention belongs to the field of building material, and is especially one kind of composite cementing material produced with flyash as main material and used for building mortar and its produced process. The composite cementing material contains the ingredients of: cement clinker 20-40 wt%, blast furnace slag 5-10 wt%, flyash 30-40 wt%, ardealite3-5 wt%, lime 10-15 wt% and zeolite 5-10 wt%. The composite cementing material has the advantages of simple usage, no bubble, no surface alkali accumulation, excellent mixability, high strength, etc.

Description

Technical field [0001] The invention belongs to building material products, in particular to a building mortar composite cementing material produced with fly ash as the main raw material and a preparation method thereof. Background technique [0002] At present, the solid waste fly ash produced by the combustion of boilers in coal-fired thermal power plants is the main source of cementing materials. The mortar cementing materials composed of cement clinker and gypsum do not contain phosphogypsum, zeolite, quicklime and blast furnace slag. The workability is not good and the strength is low. In addition, because the dry fly ash collected by electrostatic precipitator is pulverized and mixed in the ball mill, the logistics resistance is increased, the output per machine is low, the energy consumption is high, and the manufacturing cost is increased. Contents of the invention [0003] The purpose of the present invention is to overcome the above technical deficiencies and pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/08C04B18/06C04B22/06C04B28/00
CPCY02W30/91
Inventor 齐福明
Owner 阜新兴国建材厂