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High-toughness haydite concrete and preparation method thereof

A ceramsite concrete and high-toughness technology, applied in the field of building materials, can solve the problems of few experimental studies on seismic and impact resistance, few studies on ceramsite concrete, etc. It can easily meet the preparation conditions, increase compactness, and be easy to obtain Effect

Active Publication Date: 2016-05-04
上犹万年青新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there are few experimental studies on the seismic and impact resistance of recycled aggregate concrete load-bearing structures, and correspondingly, there are few studies on ceramsite concrete suitable for load-bearing structures.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1. Preparation of modified composite carbon nanomaterials:

[0048] 1) Put 62 stainless steel balls with a diameter of 5mm and 46 stainless steel balls with a diameter of 10mm in two identical 6L nylon ball mill tanks, and then add 1.4kg of natural single crystal graphite powder and multi-walled carbon nanotubes respectively According to the composite carbon material with a mass ratio of 1.5:1, 120mL of absolute ethanol was added dropwise, sealed with a nylon cover, and two ball mill jars were symmetrically placed in the ball mill. Under the condition of ball milling for 60h;

[0049] 2) Add the composite carbon material treated in step 1) into Tween40 aqueous solution with a pH value of 8 and a mass concentration of 16%, ultrasonication for 15 hours, and filtration. The resulting filter residue was washed with water and then vacuum-dried at 62°C for 20 hours;

[0050] 3) Add the composite carbon material treated in step 2) into the HCl solution with a concentration of...

Embodiment 2

[0063] 1. Preparation of modified composite carbon nanomaterials:

[0064] 1) Put 62 stainless steel balls with a diameter of 5mm and 46 stainless steel balls with a diameter of 10mm into two identical 6L nylon ball mill tanks, and then add 1.4kg of high-purity ultrafine graphite powder and multi-walled carbon nanotubes. Composite carbon material with a mass ratio of 1.5:1, then add 120mL of absolute ethanol dropwise, seal it with a nylon cover, put two ball mill jars into the ball mill symmetrically, at a speed of 500rpm, and automatically change the direction of rotation every 30min Lower ball milling treatment for 60h;

[0065] 2) Add the composite carbon material treated in step 1) into Tween40 aqueous solution with a pH value of 8 and a mass concentration of 16%, ultrasonication for 15 hours, and filtration. The resulting filter residue was washed with water and then vacuum-dried at 62°C for 20 hours;

[0066] 3) Add the composite carbon material treated in step 2) into ...

Embodiment 3

[0079] 1. Preparation of modified composite carbon nanomaterials:

[0080] 1) Put 62 stainless steel balls with a diameter of 5mm and 46 stainless steel balls with a diameter of 10mm into two identical 6L nylon ball mill tanks, and then add 1.4kg of high-purity ultrafine graphite powder and multi-walled carbon nanotubes. Composite carbon material with a mass ratio of 1.5:1, then add 120mL of absolute ethanol dropwise, seal it with a nylon cover, put two ball mill jars into the ball mill symmetrically, at a speed of 500rpm, and automatically change the direction of rotation every 30min Lower ball milling treatment for 60h;

[0081] 2) Add the composite carbon material treated in step 1) into Tween40 aqueous solution with a pH value of 8 and a mass concentration of 16%, ultrasonication for 15 hours, and filtration. The obtained filter residue was washed with water and then vacuum-dried at 60°C for 20 hours;

[0082] 3) Add the composite carbon material treated in step 2) into t...

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Abstract

The invention discloses a high-toughness haydite concrete and a preparation method thereof. The high-toughness haydite concrete is prepared from the following raw materials in parts by weight: 320-360 parts of cement, 40-80 parts of lithium slag powder, 20-40 parts of silica fume, 700-900 parts of regenerated coarse aggregate, 500-800 parts of haydite, 3-4 parts of water reducing agent, 100-120 parts of water, 10-20 parts of polyacrylate, 20-30 parts of toughening additive, 0.05-0.1 part of sodium gluconate and 10-15 parts of triethanolamine. A modified composite carbon nano material, activated wood meal and isotactic polypropylene are combined to prepare the unique toughening additive under the surface modification actions of a coupling agent and a compatilizer; and the toughening additive can be sufficiently dispersed in the concrete to effectively display the synergic toughening effect of the materials, so that the prepared concrete has the advantages of favorable toughness, favorable fatigue resistance, favorable isotropy, favorable impact resistance, favorable earthquake resistance and favorable crack resistance.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a high-toughness ceramsite concrete and a preparation method thereof. Background technique [0002] The General Office of the State Council's "Notice on Several Opinions on Promoting the Modernization of the Housing Industry and Improving Housing Quality" stipulates that coastal cities and other cities with scarce land resources have banned the use of solid clay bricks since June 2000 to protect my country's limited land resources. The development of shale ceramsite, fly ash ceramsite, etc. that do not use soil or use less soil is conducive to protecting land resources and promoting ecological civilization. In foreign countries, ceramsite concrete has been widely used in building blocks and large wall panels, and even used In load-bearing structures, its economic benefits are very obvious. Compared with the aerated block which replaces the clay brick as th...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B24/40
CPCC04B28/00C04B40/0039C04B2103/302C04B18/141C04B18/146C04B18/167C04B18/023C04B24/226C04B24/2641C04B24/10C04B24/122C04B22/02C04B24/00C04B24/26C04B24/40C04B14/28
Inventor 蒋国平肖三霞
Owner 上犹万年青新型材料有限公司
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