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Composite gelate material and method of producing the same

A technology of composite cementitious materials and composite admixtures, applied in cement production, sustainable waste treatment, solid waste management, etc., can solve the problems of large-scale application without breakthrough, affect the quality of construction projects, and high production costs, and achieve improvement Fluidity and water retention, early strength antifreeze performance, fast response effect

Inactive Publication Date: 2009-10-07
CHANGSHA YUANPENG CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In our country, undisturbed fly ash or finely ground slag are often used as cement mixture and concrete admixture. Due to technical reasons, when fly ash and slag are used as raw materials to produce cementitious materials, the parameters are low, the activity is not high, Poor stability, which affects the quality of construction projects; although there are many methods for the excitation and activation of fly ash, mainly mechanical grinding method, lime alkali excitation method, and steam curing method, the production cost and investment of these methods are relatively high. , The process is complex, and large-scale applications have not been broken through

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The formula used is calculated by weight percentage: 30% of 52.5 grade Portland cement, 55% of fly ash, 3.09% of gypsum, 9.6% of lime, 0.5% of calcium chloride, 0.5% of triethanolamine, 1% of sodium nitrite, lignosulfur Calcium acid 0.3%, dodecylsulfonate 0.01%, wherein the abrasive needs to be ground to a sieve of 45um and is not more than 10%, and is processed according to the production method of the present invention to obtain a type A composite gelling material; its strength index is detected Reached the 32.5R level.

Embodiment 2

[0024] The formula used is calculated by weight percentage: 52.5 grade Portland cement 20%, fly ash 10%, granulated blast furnace slag 65%, gypsum 1.9%, water glass 1%, calcium sulfate 1.5%, triethanolamine 0.05%, fatty alcohol Polyoxyethylene ether sodium sulfate 0.545%, sodium dodecylsulfonate 0.005%, wherein the abrasive needs to be ground to a 45um sieve residue of not more than 15%, and processed according to the production method of the present invention to obtain the B-type composite gelling material; Its strength index is detected to reach 42.5R level.

Embodiment 3

[0026] The formula used is calculated by weight percentage: 42.5 grade Portland cement 50%, fly ash 10%, steel slag powder 10%, granulated blast furnace slag 15%, pozzolanic mixture 8%, silica fume 2%, gypsum 2.25%, 1.5% of lime, 0.5% of calcium chloride, 0.05% of triethanolamine, 0.5% of calcium nitrate, 0.2% of calcium lignosulfonate, wherein the abrasive needs to be ground to a 45um sieve residue of not more than 12%, and is processed according to the production method of the present invention. A B-type composite gel material was obtained; its strength index reached 32.5R level after testing.

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Abstract

The present invention disclose a composite gelate material and method of producing the same, including portland cement, fly ash, steel scoria powder, granulated blast furnace slag, admixture of pozzuolana, silicon gray, sulphates excitant, alkaline excitant, additive etc, through technics of mix grinding, agitating to get the needed powder; possessing advantages of high high-early strength, perfect workability, perfect antifreezing and impervious ability, high dose of waste, no environment polluting etc, simultaneity being able to improve concrete stability with a low cost and simple technics, which can be used as cementing materials of high-performance concrete.

Description

technical field [0001] The invention belongs to the technical field of cementitious materials, in particular to a composite cementitious material produced by utilizing fly ash and industrial slag and a production method thereof. Background technique [0002] The treatment and utilization of fly ash and slag solid waste has attracted much attention from all over the world. The total waste accumulated in my country over the years has exceeded 100 million tons. A large amount of waste is discharged without any effective treatment, occupying cultivated land and polluting the environment. Therefore, it is our unshirkable historical mission to thoroughly control pollution and turn waste into treasure. In our country, undisturbed fly ash or finely ground slag are often used as cement mixture and concrete admixture. Due to technical reasons, when fly ash and slag are used as raw materials to produce cementitious materials, the parameters are low, the activity is not high, Poor stabi...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B18/08C04B18/14C04B18/30
CPCC04B2111/29C04B2111/00293C04B28/04C04B2111/00017C04B28/006Y02P40/10Y02W30/91C04B7/02C04B7/12C04B18/08C04B18/141C04B18/142C04B18/146C04B22/062C04B22/142C04B2103/302C04B2103/304
Inventor 吕运征柳舒吕运凤李亿平段绪峰
Owner CHANGSHA YUANPENG CHEM TECH
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