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Ferro-nickel slag water permeable brick for pavements and preparation method of water permeable brick

A technology for nickel-iron slag and permeable bricks, which is applied in the field of building materials, can solve problems such as consumption of nickel-iron slag, and achieve the effects of reducing energy consumption, significant resource utilization, and reducing production costs.

Active Publication Date: 2014-11-26
贵州省建筑材料科学研究设计院有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems existing in the prior art, the present invention provides a kind of ferronickel slag that can be consumed in a large amount, and the ferronickel slag and active agent are modified into micropowder and then added to it, which improves the traditional technology When nickel-iron slag is used as raw material to produce bricks, the strength of bricks cannot meet the technical defect of standard requirements, which improves the compressive strength, flexural strength and comprehensive performance of bricks, and improves the quality of bricks produced from nickel-iron slag as raw materials Nickel-iron slag pavement permeable brick and preparation method thereof

Method used

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  • Ferro-nickel slag water permeable brick for pavements and preparation method of water permeable brick

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Effect test

Embodiment 1

[0029] The invention discloses a pavement permeable brick made of nickel-iron slag. The raw materials (calculated on a dry basis) are 75 kg of nickel-iron slag, 1 kg of active fine powder, and 15 kg of cement.

[0030] Among them, the active micropowder is composed of 97kg ferronickel slag fine powder and 3kg active agent, and the ferronickel slag fine powder and active agent are mixed evenly according to the proportion, and then ground into 500 meshes by a mill.

[0031] The active agent is industrial gypsum.

[0032] Among them, the ferronickel slag fine powder is 500 mesh particles.

[0033] The particle size of the ferronickel slag is 15-20mm.

[0034] Its preparation method is:

[0035] Mix the raw materials according to the ratio, and use a mixer to stir evenly at a stirring speed of 30r / min; then add water to it, and control the ratio of the added water to raw materials to be 0.23, continue to stir and mix for 3 minutes, and then send the mixture to Put it into a for...

Embodiment 2

[0038] A nickel-iron slag pavement permeable brick, on the basis of embodiment 1, other preparation method steps are the same as embodiment 1, raw material (by weight on a dry basis) is nickel-iron slag 85kg, active micropowder 5kg, cement 25kg.

[0039] The active micropowder is composed of 99kg ferronickel slag micropowder and 1kg active agent, and is made by mixing the ferronickel slag micropowder and active agent uniformly according to the ratio, and then grinding it into 400 meshes with a pulverizer.

[0040] Wherein the active agent is natural gypsum.

[0041] Among them, the ferronickel slag fine powder is 400 mesh particles.

[0042] The particle size of the ferronickel slag is 10-15mm.

[0043] The curing adopts steam curing, and the steam temperature is 100°C.

Embodiment 3

[0045] A kind of ferronickel slag pavement permeable brick, on the basis of embodiment 1, other preparation method steps are the same as embodiment 1, raw material (by dry basis weight) is ferronickel slag 80kg, active micropowder 3kg, cement 20kg.

[0046] Among them, the active micropowder is composed of 95kg ferronickel slag fine powder and 5kg active agent, and the ferronickel slag fine powder and active agent are mixed evenly according to the proportion, and then ground into 300 mesh by a mill.

[0047] The active agent is industrial gypsum.

[0048] Among them, the ferronickel slag fine powder is 300 mesh particles.

[0049] The particle size of the ferronickel slag is 5-10mm.

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Abstract

The invention relates to the technical field of building materials and particularly relates to a ferro-nickel slag water permeable brick for pavements and a preparation method thereof. A great deal of ferro-nickel slag is mixed into the adopted raw materials, so that the resource utilization of the ferro-nickel slag is remarkable, the treatment cost is reduced, a problem that the ferro-nickel slag is difficult to treat is effectively solved, and the environmental pollution is reduced; a modifier gypsum is introduced, so that part of a gel material can be effectively substituted by virtue of active ferro-nickel slag micro powder; by controlling the total mixing amount of the ferro-nickel slag in the water permeable brick to be over 75% and adding an activator, the breaking strength and the compressive strength as well as various indexes of the prepared ferro-nickel slag water permeable brick for pavements are guaranteed, the national comprehensive utilization industrial policy of the waste resources are fulfilled, and a great deal of the ferro-nickel slag can be treated, and thus the production cost and the energy consumption are reduced.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a nickel-iron slag pavement permeable brick and a preparation method thereof. Background technique [0002] Ferronickel slag is a kind of FeO discharged during the metal nickel smelting process. 2 , SiO 2 The granulated industrial waste slag formed after the melt as the main component is water quenched, usually about 9 to 20 tons of nickel-iron slag is discharged for every 1 ton of nickel produced. Ferronickel slag is divided into different types such as dry slag, water slag, high ferronickel slag, and low ferronickel slag. The content of nickel-iron alloy in dry slag is higher, and the content of nickel-iron alloy in water slag is lower. [0003] In recent years, with the increase of nickel production, the discharge and storage of ferronickel slag have also increased. According to statistics, the annual discharge of ferronickel slag in the country has reached tens ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/14
CPCY02W30/91
Inventor 宋美王勇刘恒波孙夔贺深阳贾韶辉
Owner 贵州省建筑材料科学研究设计院有限责任公司
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