Method for preparing non-sintered sidewalk bricks from residual aluminum ash

An aluminum slag, non-sintering technology is applied in the field of preparing non-sintered sidewalk bricks with aluminum ash residue, which can solve the problems of destroying the ecological environment and the unsatisfactory strength of the sidewalk bricks, and achieves less damage, increased compressive strength, and early rise. high intensity effect

Inactive Publication Date: 2018-03-20
NANTONG UNIVERSITY
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  • Abstract
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Problems solved by technology

Environmentally friendly concrete pavement bricks in the prior art mainly use gravel or sand or cinder as aggregates, but q

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  • Method for preparing non-sintered sidewalk bricks from residual aluminum ash
  • Method for preparing non-sintered sidewalk bricks from residual aluminum ash

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[0021] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0022] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0023] One example is:

[0024] refer to figure 1 with 2 , a method for preparing non-sintered sidewalk bricks using aluminum ash residue as the main raw material. First, the aluminum ash residue is ball-milled through a 120-mesh sieve, and poured into water at 60 °C at a mass ratio of 1:10, and...

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Abstract

The invention discloses a method for preparing non-sintered sidewalk bricks from residual aluminum ash. The method comprises the following steps: pretreating the residual aluminum ash, aging, mixing materials, shaping and later maintaining, wherein the residual aluminum ash to be buried is utilized as main aggregate, and activity of ingredients of aluminum oxide, silicon dioxide and the like in the residual ash can be stimulated by aging. As additives of a high-performance water reducing agent, an early strength agent and the like are added, an early strength of the sidewalk bricks is high, the sidewalk bricks are not prone to being damaged in demoulding, and compressive strength of the sidewalk bricks is also improved. By means of utilizing the residual aluminum, the method has the characteristics of low production cost, ability in effectively reducing the problem that ecological environment is affected by aluminum ash accumulation, resource recycling effect and important practical value.

Description

technical field [0001] The present disclosure generally relates to the field of brick making, specifically to the technical field of preparing sidewalk bricks, and in particular to a method for preparing non-sintered sidewalk bricks with aluminum ash residue. Background technique [0002] With the rapid development of my country's economy, the demand for aluminum continues to increase. my country has become the world's largest aluminum producer. With the wide application of metal aluminum, the production of aluminum ash is also increasing. Aluminum ash is the product of the slag produced in the production process of electrolytic aluminum or cast aluminum after cooling and processing, and it is a renewable resource. At present, the processing method of aluminum ash in my country is mainly based on accumulation. On the one hand, slag piles occupy a large amount of land; [0003] Aluminum ash contains aluminum and a variety of valuable elements, mainly composed of aluminum m...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/0075C04B22/064C04B22/143C04B24/04C04B14/06C04B14/062C04B18/141
Inventor 倪红军唐伟佳吕帅帅汪兴兴朱昱顾涛
Owner NANTONG UNIVERSITY
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