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Method for preparing high-strength unfired solid brick from rock wool furnace bottom slag

A furnace bottom slag, solid brick technology, applied in sustainable waste treatment, solid waste management, climate sustainability and other directions, can solve the problems of unutilized rock wool rigidity, low utilization rate of rock wool, etc., to improve mechanical properties, The effect of improving thermal insulation performance

Active Publication Date: 2022-01-07
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are problems such as low utilization rate of rock wool (about 20%), failure to utilize the potential hydraulicity of rock wool, etc.

Method used

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  • Method for preparing high-strength unfired solid brick from rock wool furnace bottom slag

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for preparing high-strength non-fired solid bricks using rock wool bottom slag, comprising the following steps:

[0017] 1. Rock wool bottom slag ball mill

[0018] The rock wool bottom slag is put into a ball mill for ball milling, and ball milled into rock wool fibers and fine rock wool particles with a fineness of 100 mesh and 550 mesh respectively. Among them, the fine rock wool particles with a fineness of 550 mesh have an activity index of 0.90 according to the GB / T 1596-2017 "Fly Ash Used in Cement and Concrete", which shows that the rock wool particles with this fineness have greater activity.

[0019] 2. Prepare raw materials according to the mix ratio

[0020] The raw materials are calculated and weighed according to the following weight proportions, P O4 2.5 cement 6.936%, rock wool fiber 33.217%, fine rock wool particles 22.145%, construction solid waste recycled sand 29.938%, water 7.065%, quicklime 0.664%, Polycarboxylate superplasticizer 0.035%...

Embodiment 2

[0030] A method for preparing high-strength non-fired solid bricks using rock wool bottom slag, comprising the following steps:

[0031] 1. Rock wool bottom slag ball mill

[0032] The rock wool bottom slag is put into a ball mill for ball milling, and ball milled into rock wool fibers and fine rock wool particles with a fineness of 100 mesh and 550 mesh respectively. Among them, the fine rock wool particles with a fineness of 550 mesh have an activity index of 0.90 according to the GB / T 1596-2017 "Fly Ash Used in Cement and Concrete", which shows that the rock wool particles with this fineness have greater activity.

[0033] 2. Prepare raw materials according to the mix ratio

[0034] The raw materials are calculated and weighed according to the following weight proportions, P O4 2.5 cement 6.936%, rock wool fiber 36.312%, fine rock wool particles 24.208%, construction solid waste recycled sand 24.718%, water 7.065%, quicklime 0.726%, Polycarboxylate superplasticizer 0.035%...

Embodiment 3

[0044] A method for preparing high-strength non-fired solid bricks using rock wool bottom slag, comprising the following steps:

[0045] 1. Rock wool bottom slag ball mill

[0046] The rock wool bottom slag is put into a ball mill for ball milling, and ball milled into rock wool fibers and fine rock wool particles with a fineness of 100 mesh and 550 mesh respectively. Among them, the fine rock wool particles with a fineness of 550 mesh have an activity index of 0.90 according to the GB / T 1596-2017 "Fly Ash Used in Cement and Concrete", which shows that the rock wool particles with this fineness have greater activity.

[0047] 2. Prepare raw materials according to the mix ratio

[0048] The raw materials are calculated and weighed according to the following weight proportions, P O4 2.5 cement 6.936%, rock wool fiber 38.937%, fine rock wool particles 25.958%, construction solid waste recycled sand 20.290%, water 7.065%, quicklime 0.779%, Polycarboxylate superplasticizer 0.035%...

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Abstract

A method for preparing a high-strength unfired solid brick from rock wool furnace bottom slag comprises the following steps of carrying out ball milling treatment on the rock wool furnace bottom slag to obtain fine rock wool particles and rock wool fibers, uniformly stirring the rock wool fibers and the fine rock wool particles with building solid waste reclaimed sand, cement, quick lime and a water reducing agent according to a mixing ratio, and carrying out mechanical compression molding by a brick making machine to obtain a finished solid brick after curing. The solid brick is prepared from the following components in percentage by weight: 25%-45% of rock wool fiber, 20%-35% of fine rock wool particles, 20%-30% of building solid waste reclaimed sand, 6%-12% of cement, 6%-10% of water, 0.5%-1.0% of quick lime and 0.03%-0.06% of a water reducing agent. The production cost of the solid brick is effectively reduced while the construction waste is fully utilized, and the prepared finished brick not only has a better thermal insulation effect and high strength, but also can be widely applied to various fields.

Description

technical field [0001] The invention belongs to the technical field of new building materials, and in particular relates to a method for preparing high-strength non-burning solid bricks by using rock wool bottom slag. Background technique [0002] The wall has the functions of separating space, bearing load and decoration, and the wall material accounts for more than 70% of the building materials. Traditional wall materials such as clay bricks and sintered bricks pollute the environment during the production process, and the application of new wall materials in construction projects has attracted more and more attention. [0003] With the continuous advancement of building insulation work, rock wool has been used more and more because of its good thermal insulation performance. The output of rock wool and rock wool bottom slag is getting higher and higher, and rock wool waste and bottom slag are recycled. Reuse research is very necessary. [0004] At present, the research ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/16
CPCC04B28/04C04B18/16C04B2201/52C04B22/064C04B2103/302Y02W30/91
Inventor 陈畅王绪富
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY