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Magnetic hot melt type sulphide mastic as well as preparation method and application thereof

A technology of sulfur mastic and magnetic heat, which is applied in excavation, construction, infrastructure engineering, etc., can solve the problems of increasing the difficulty and cost of underground obstacles, the impact of underground environment, and obstacles to the construction of surrounding buildings, so as to reduce the difficulty of construction, Easy dismantling and low cost

Inactive Publication Date: 2019-01-04
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the construction is completed, the anchor cables will be buried underground, which will not only have a certain impact on the underground environment, but will also cause obstacles to the subsequent construction of surrounding buildings.
Usually, special machinery is required to cut the anchor cable, which greatly increases the difficulty and expense of dealing with underground obstacles

Method used

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  • Magnetic hot melt type sulphide mastic as well as preparation method and application thereof
  • Magnetic hot melt type sulphide mastic as well as preparation method and application thereof

Examples

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Effect test

preparation example Construction

[0020] The preparation method of above-mentioned magnetothermal melting type sulfur mastic comprises the following steps:

[0021] Step 1: Weigh according to the following composition ratio: 60-70 parts of sulfur, 35-40 parts of corrosion-resistant filler, 5-10 parts of magnetic powder, 5-10 parts of toughening agent, 3-5 parts of hyperdispersant and mineral doping 2 to 4 parts of ingredients;

[0022] Step 2: Pour the sulfur into the iron pot first, heat it to 135-150°C and keep it for 30 minutes to melt it;

[0023] Step 3: Add other materials into the molten sulfur and heat it to above 170°C. Stir continuously during the process to ensure that all components are fully combined to obtain sulfur cement with magnetothermal melting effect;

[0024] Step 4: Finally, when the magnetic hot-melt sulfur mortar is poured at about 140°C, there should be no bubbles in the "8"-shaped test block, and it should be interrupted from the middle to observe that there are less than 5 small ho...

Embodiment 1

[0028] 60 parts of sulfur, 35 parts of corrosion-resistant filler, 5 parts of magnetic powder, 5 parts of toughening agent, 3 parts of hyperdispersant, 2 parts of mineral admixture, the density of the above components after mixing is 2343kg / m 3 .

[0029] Among them, the corrosion-resistant filler is quartz powder. The magnetic powder is manganese zinc ferrite powder, and the toughening agent is polyvinyl chloride. The hyperdispersant is acrylate and the mineral admixture is silica fume.

Embodiment 2

[0031] 62 parts of sulfur, 36 parts of corrosion-resistant filler, 6 parts of magnetic powder, 6 parts of toughening agent, 3 parts of hyperdispersant, 2 parts of mineral admixture, the density of the above components after mixing is 2417kg / m 3 .

[0032] Among them, the corrosion-resistant filler is quartz powder. The magnetic powder is manganese zinc ferrite powder, and the toughening agent is polyvinyl chloride. The hyperdispersant is acrylate and the mineral admixture is silica fume.

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Abstract

The invention provides a magnetic hot melt type sulphide mastic as well as the preparation method and the application thereof. The magnetic hot melt type sulphide mastic comprises the following raw materials in weight ratio: 60-70 parts of sulfur, 35-40 parts of corrosion-resistant filler, 5-10 parts of magnetic powder, 5-10 parts of a toughening agent, 3-5 parts of a hyperdispersant and 2-4 partsof mineral admixture, which are mixed together, and the density of the mixture is 2343-2628 kg / m3. The materials are mixed according to the mix proportion of the components, therefore the magnetic hot melt type sulphide mastic provided by the invention not only is resistant to tensile strength, frost and corrosion and quick in solidification, but also has the characteristic of self-melting underthe action of the external alternating magnetic field when the internal temperature is raised. The component made of the magnetic hot melt type sulphide mastic provided by the invention is adopted andapplied to the external anchor head of an anchor wire. When in demolition, the hot melt type sulphide mastic in the anchorage of the external anchor head is melted automatically under the action of the external alternating magnetic field, the anchorage is then separated from the steel strand, and the anchor wire loses the tension, thereby reducing the difficulty in demolition and decreasing the construction cost.

Description

technical field [0001] The invention belongs to the technical field of mastic materials for building construction, and in particular relates to a magnetothermal-melt sulfur mastic, a preparation method and an application thereof. Background technique [0002] With the rapid development of my country's construction industry, during the construction of underground facilities such as underground tunnels, underground pedestrian passages, and underground commercial streets, it is necessary to take measures to support the soil of foundation pits and slopes. Anchor cable support is a kind of reinforcement and support method often used in the construction of slopes, deep foundation pits, underground tunnels and other structures. However, after the building construction is completed, the anchor cables will be buried underground for a long time, which will not only have a certain impact on the underground environment, but will also cause obstacles to the subsequent construction of sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/36E02D17/04E02D17/20
CPCC04B28/36C04B2111/00422C04B2201/50E02D17/04E02D17/20C04B14/06C04B14/363C04B24/2682C04B24/045C04B18/146
Inventor 陆征然郭超张茂胜于红梅
Owner SHENYANG JIANZHU UNIVERSITY
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