River sediment adsorption brick and preparation method thereof

A technology for river sediment and cement, applied in the field of architecture, can solve problems such as single function and secondary pollution, and achieve the effects of simple preparation process, environmental protection and low cost

Inactive Publication Date: 2015-12-09
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The described river bottom mud adsorption brick and its preparation method solve the technical problems caused by the storage of river bottom mud and s

Method used

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Embodiment Construction

[0020] The invention provides an adsorption brick for river bottom mud, which comprises the following components in parts by weight: 40-50 parts of river bottom mud, 15-20 parts of cement, 10-15 parts of zeolite powder, 5-10 parts of zeolite, 2.5 to 5 parts of gypsum, water accounts for 32% to 36% of the total amount of solid materials, foaming agent accounts for 0.1% to 0.2% of the total amount of water, the river bottom mud is naturally air-dried, crushed and ground, and passed through 100-200 The powdery material that mesh sieve obtains, cement is P.O42.5, and foaming agent is sodium dodecylbenzenesulfonate.

[0021] The preparation steps of the river bottom mud adsorption brick are as follows:

[0022] (1) Weigh and mix the river sediment, cement, zeolite powder and gypsum according to the above proportions;

[0023] (2) After weighing the foaming agent, pour it into water and stir until a large amount of foam is produced;

[0024] (3) Pour the mixed solution in step (2)...

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Abstract

The invention provides a river sediment adsorption brick comprising following components: 40-50 parts of river sediment, 15-20 parts of cements, 10-15 parts of zeolite powder, 5-10 parts of zeolite, and 2.5-5 parts of gypsum; water accounts for 32-36% of total of solid materials, and a foaming agent accounts for 0.1-0.2% of total water amount. The invention also provides a preparation method for the river sediment adsorption brick, comprising steps: mixing the river sediment, cement, zeolite powder, and gypsum uniformly to make a mixture, adding the foaming agent in water and stirring until foams occur; adding the solution in the mixture; laying the zeolite evenly and uniformly on the bottom of a standard mold, pouring the mixed slurry in the standard mold, maintaining and demolding, and maintaining for the second time, thereby obtaining the river sediment adsorption brick. In the invention, the river sediment content amounts to 45-65%, the river sediment has a high utilization rate, and the river sediment adsorption brick has a high compressive strength which is no less than MU7.5 grade, and can substitute for the traditional solid chamotte brick.

Description

technical field [0001] The invention belongs to the field of architecture, and in particular relates to a building brick, in particular to a river bottom mud adsorption brick and a preparation method thereof. Background technique [0002] At present, there are following deficiencies in using river bottom mud to make bricks: [0003] 1. Under the condition of satisfying certain compressive strength, the mixing amount of sediment is small and the utilization rate is low; [0004] 2. Most brick-making methods adopt high-temperature sintering technology, which may cause secondary air pollution and high energy consumption; [0005] 3. The adsorption function of the river bottom mud is not brought into play, and the bricks produced can only be used in the field of building materials, and have a single function. Contents of the invention [0006] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a river bottom mud adsorption brick...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B38/02C04B18/30C04B22/14
CPCY02W30/91
Inventor 李佳玲张道方袁时珏王潋许智华赵榕烨李亚如
Owner UNIV OF SHANGHAI FOR SCI & TECH
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