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High-belite sulphoaluminate cement-based hardener for concrete floor and preparation method of high-belite sulphoaluminate cement-based hardener

A special sulfur aluminate, cement-based technology, applied in the field of concrete, can solve problems such as hollowing delamination, plastic cracking, etc., and achieve the effects of performance enhancement, ultra-high strength and surface hardness, and ultra-high bond strength

Active Publication Date: 2020-10-30
黑龙江泽林科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because there is a concrete slurry extraction process in the initial setting stage during the construction of the wear-resistant floor, after the slurry is extracted, the cement-based wear-resistant material is dry-spread, which is difficult to ensure that the composition of the entire wear-resistant layer is uniform. Once the slurry is enriched The area will cause plastic cracking, even hollowing and delamination

Method used

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  • High-belite sulphoaluminate cement-based hardener for concrete floor and preparation method of high-belite sulphoaluminate cement-based hardener
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  • High-belite sulphoaluminate cement-based hardener for concrete floor and preparation method of high-belite sulphoaluminate cement-based hardener

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Experimental program
Comparison scheme
Effect test

Embodiment 1I

[0023] Embodiment 1I type cement-based hardener

[0024] High Belite Sulphoaluminate Cement: Strength Class 42.5 18%

[0025] Aggregate: 6-10 mesh quartz sand 36%, 40-70 mesh quartz sand 20%, 70-140 mesh quartz sand 5%

[0026] Calcined Kaolin: 5%

[0027] Lime: 1.5%,

[0028] Other mineral admixtures: silica fume 4%, mineral powder 5%

[0029] Rubber powder: 1.0%

[0030] Retarder: tartaric acid 0.05%, citric acid 0.05%

[0031] Water reducer: 0.1%

[0032] Pigment: Titanium Dioxide 2.5%, Iron Oxide Red 1.5%

[0033] The specific performance is shown in Table 1.

[0034] Table 1 Material physical and chemical performance indicators

[0035]

Embodiment 2II

[0036] Embodiment 2Type II cement-based hardener

[0037] High Belite Sulphoaluminate Cement: Strength Class 52.5 16%

[0038] Aggregate: Graded Carborundum 63%

[0039] Calcined Kaolin: 5%

[0040] Lime: 1.5%,

[0041] Other mineral admixtures: silica fume 4%, mineral powder 5%

[0042] Rubber powder: 1.0%

[0043] Retarder: tartaric acid 0.05%, citric acid 0.05%

[0044] Water reducer: 0.1%

[0045] Pigment: Titanium Dioxide 2.0%, Carbon Black 2.5%

[0046] The specific performance is shown in Table 2.

[0047] Table 2 Physical and chemical performance indicators of materials

[0048]

Embodiment 3I

[0049] Embodiment 3I type cement-based hardener

[0050] High Belite Sulphoaluminate Cement: Strength Grade 42.5 19.5%

[0051] Aggregate: 6-10 mesh quartz sand 36%, 40-70 mesh quartz sand 20%, 70-140 mesh quartz sand 5% Calcined kaolin: 5%

[0052] Lime: 1.5%,

[0053] Other mineral admixtures: silica fume 4%, mineral powder 5%

[0054] Rubber powder: 1.0%

[0055] Retarder: tartaric acid 0.05%, citric acid 0.05%

[0056] Water reducer: 0.1%

[0057] Pigment: Titanium Dioxide 2.5%

[0058] The specific performance is shown in Table 3.

[0059] Table 3 Physical and chemical performance indicators of materials

[0060]

[0061]

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Abstract

The invention belongs to the technical field of concrete, and particularly relates to a high-belite sulphoaluminate cement-based hardener for a concrete floor and a preparation method of the high-belite sulphoaluminate cement-based hardener. The hardener is prepared by mixing and stirring the following materials in percentage by weight for reaction: 10%-20% of high-belite sulphoaluminate cement, 60%-80% of aggregate, 3%-5% of kaolin, 1%-2% of lime, 5%-10% of other mineral additives, 0.5%-2% of rubber powder, 0.05%-0.1% of retarder, 0.05%-0.1% of a water reducing agent and 0-3% of a pigment. The hardener prepared by the method breaks through the limitation of applying a sulphoaluminate cement-based hardener to Portland cement-based concrete; the problem of plastic cracks on the surface of an existing cement-based wear-resistant floor is solved. The prepared hardener has ultrahigh strength and surface hardness and is good in dispersing performance, the compatibility and binding force ofall the raw materials are greatly improved, the performance is enhanced, and the ultrahigh bonding strength of a wear-resisting layer and a base layer is achieved.

Description

technical field [0001] The invention belongs to the technical field of concrete, and in particular relates to a high belite sulfoaluminate cement-based hardener for concrete floors and a preparation method thereof. Background technique [0002] The cement-based wear-resistant floor system is a cost-effective heavy-duty floor. It is a hard, wear-resistant, and The impact floor system can be used in warehouses, various industrial workshops, parking lots and other places where heavy machinery travels. Among them, the cement-based wear-resistant material (cement-based hardener) for the concrete floor is a dry-mixed material composed of Portland cement or ordinary Portland cement, wear-resistant aggregate as the base material, and an appropriate amount of additives. Usually, the thickness of the wear-resistant layer formed by the cement-based hardener is 3-5mm. It forms a cement-based wear-resistant floor system with the base concrete. The 3-5mm thick wear-resistant layer direct...

Claims

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Application Information

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IPC IPC(8): C04B28/06
CPCC04B28/06C04B2201/50C04B2201/52C04B14/06C04B14/106C04B18/12C04B18/146C04B22/06C04B22/064C04B24/06C04B24/24C04B14/324
Inventor 张乐军李云伟查锋华潘显兵
Owner 黑龙江泽林科技有限公司
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