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Unitary system special cement self-leveling terrace material

A cement and powder technology, which is applied in the field of self-leveling floor materials of high belite sulfoaluminate cement one-element system, can solve the problems of increasing management costs, difficulty in controlling the performance of self-leveling mortar, affecting application and promotion, etc.

Inactive Publication Date: 2018-09-14
上海博尔泰工业产品设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The multi-component cementitious material system makes the preparation process of self-leveling mortar particularly complicated, because there are certain adaptability problems between the cements of these different systems, which makes the performance control of self-leveling mortar more difficult and the management cost is greatly increased. Moreover, the price of high alumina cement and sulfoaluminate cement is relatively high, which makes the preparation cost of self-leveling mortar high, which affects the application and promotion.

Method used

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  • Unitary system special cement self-leveling terrace material
  • Unitary system special cement self-leveling terrace material
  • Unitary system special cement self-leveling terrace material

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preparation example Construction

[0060] The preparation method of the mortar powder of the present invention may include: weighing additives by weight, i.e. polymer latex powder, optional thickener, thixotropic agent, retarder, coagulant accelerator, defoamer and water reducer , mixed to obtain the additive mixture, and then mixed according to the ratio of 1 weight part of the additive and 2-4 weight parts (eg 3 weight parts) of sand, to prepare the additive premix. Then, weigh high belite sulfoaluminate cement, ground slag powder, heavy calcium powder, remaining sand, said premix, and other additive components not included in the additive premix by weight ratio, The mortar powder of the present invention can be prepared by mixing evenly. Mixing can be done with a conventional dry blender.

[0061] In the present invention, the high belite cement one-component cementitious material system is used to replace the traditional aluminate cement-portland cement-gypsum three-component cementitious material system, ...

Embodiment 1

[0075] The formula shown in Table 1 below takes by weighing polymer latex powder, cellulose ether, dipitan, citric acid, tartaric acid, lithium carbonate, defoamer and polycarboxylate water reducer, and mixes to obtain the additive mixture, with 1 weight part This additive mixture was mixed with 3 parts by weight of sand to obtain an additive premix. Weigh high belite sulfoaluminate cement, ground slag powder, heavy calcium powder and the remaining sand according to the formula shown in Table 1, and mix them with the additive premix evenly to prepare mortar powder. Mixing is performed using a dry blender.

[0076] The mortar powder is stirred and mixed with water according to the ratio of 1 weight part of mortar powder: 0.21 weight part of water to form mortar.

[0077] Table 1

[0078]

[0079]

Embodiment 2

[0081] Formula shown in Table 2 below takes by weighing polymer latex powder, cellulose ether, citric acid, tartaric acid, lithium sulfate, lithium carbonate, defoamer and polycarboxylate water reducer, mixes to obtain additive mixture, with 1 weight part of the The additive mixture was mixed with 3 parts by weight of sand to obtain an additive premix. Weigh high belite sulfoaluminate cement, ground slag powder, heavy calcium powder and the remaining sand according to the formula shown in Table 1, and mix them evenly with the additive premix to prepare mortar powder. Mixing is performed using a dry blender.

[0082] The mortar powder is stirred and mixed with water according to the ratio of 1 weight part of mortar powder: 0.20 weight part of water to form mortar.

[0083] Table 2

[0084]

[0085]

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Abstract

The invention provides unitary system special cement self-leveling mortar powder and a terrace material prepared from the same. The mortar powder comprises, by total weight, 20-45% of high belite sulphate aluminum cement, 0-20% of ground slag powder, 0-15% of calcium carbonate fillers, 45-60% of sands, 1-5% of polymer emulsion powder, 0-0.15% of thickening agents, 0-0.05% of thixotropic agents, 0.05-0.30% of retarders, 0.01-0.1% of coagulants, 0.05-0.4% of defoaming agents and 0.1-0.3% of water reducers. The terrace material prepared from the powder has the advantages of high compressive strength and flexural strength, rapid hardening property, high wear resistance, good volume stability, A-grade fireproof property and the like.

Description

technical field [0001] The invention relates to a self-leveling floor material, in particular to a high belite sulfoaluminate cement one-component system self-leveling floor material. Background technique [0002] Self-leveling ground material is a building ground leveling material developed in the 1970s, which is based on inorganic gelling materials or organic materials, mixed with superplasticizers and other additives and fine sand. Self-leveling materials can be divided into two categories: inorganic and organic based on different base materials. Inorganic self-leveling materials mainly refer to gypsum-based and cement-based self-leveling materials. Organic self-leveling materials mainly refer to epoxy self-leveling materials〔 Li Li, Wu Fang, "A Review of the Application and Development of Self-Leveling Materials", "New Building Materials", April 2006]. [0003] Cement-based self-leveling mortar is composed of cement-based cementitious materials, fine aggregates, fillers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B111/20C04B111/28C04B111/34
CPCC04B28/06C04B2111/2038C04B2111/28C04B2111/343C04B2111/62C04B2201/05C04B2201/10C04B2201/50C04B24/26C04B24/383C04B24/06C04B22/10C04B18/141C04B14/28C04B14/06C04B2103/302C04B24/36C04B22/147
Inventor 康香兰
Owner 上海博尔泰工业产品设计有限公司
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