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Wet-mixed mortar additive and preparation method thereof

A wet-mixed mortar and additive technology, applied in the field of wet-mixed mortar, can solve the problems of difficulty in ensuring the opening time and workability of the mortar, large mixing time error, etc., achieve good water retention effect, prolong the hydration time, and improve the density of the mortar. The effect of final compressive strength

Active Publication Date: 2020-08-25
DEZHOU RUNDE CONCRETE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional mortar adopts on-site mixing, and the error of mixing time and metering device is relatively large, so it is difficult to guarantee the opening time and workability of the mortar

Method used

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  • Wet-mixed mortar additive and preparation method thereof

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Effect test

Embodiment 1

[0022] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0023] Example 1

[0024] A wet-mix mortar additive, including the following raw materials according to weight percentage: 1.5% sodium α-olefin sulfonate, 3% lauryl sulfuric acid, 5% polycarboxylate water reducer, 10% sodium gluconate, and 2% diethanolamine %, sodium sulfate 3%, 4-methyl-2-pentenoic acid 3%, modified nano silicon dioxide 10% and the balance of water. The modified nano-silica is nano-silica doped with glass powder and titanium dioxide composite.

Embodiment 2

[0026] A wet-mix mortar additive, including the following raw materials according to weight percentage: 0.5% sodium α-olefin sulfonate, 5% lauryl sulfuric acid, 3% polycarboxylate water reducer, 15% sodium gluconate, 3% diethanolamine %, 2% sodium sulfate, 5% 4-methyl-2-pentenoic acid, 5% modified nano silicon dioxide and the rest of water. The modified nano-silica is nano-silica doped with glass powder and titanium dioxide composite. The modified nano-silica is nano-silica doped with glass powder and titanium dioxide composite.

Embodiment 3

[0028] A wet-mix mortar additive, including the following raw materials according to weight percentage: 1.5% sodium α-olefin sulfonate, 2% lauryl sulfuric acid, 8% polycarboxylate water reducer, 10% sodium gluconate, 1 diethanolamine %, sodium sulfate 5%, 4-methyl-2-pentenoic acid 2%, modified nano silicon dioxide 10% and the balance of water. The modified nano-silica is nano-silica doped with glass powder and titanium dioxide composite. The modified nano-silica is nano-silica doped with glass powder and titanium dioxide composite.

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Abstract

The invention relates to a wet-mixed mortar additive and a preparation method thereof. The wet-mixed mortar additive is prepared from the following raw materials in percentage by weight: 0.5-1.5% of sodium alpha-olefin sulfonate, 2-5% of dodecyl sulfuric acid, 3-8% of a polycarboxylate superplasticizer, 10-15% of sodium gluconate, 1-3% of diethanol amine, 2-5% of sodium sulfate, 2-5% of 4-methyl-2-pentenoic acid, 5-10% of modified nano silicon dioxide and the balance of water. The wet-mixed mortar additive prepared by the invention has good water retention capacity, can effectively prolong thehydration time of mortar, and improves the operability of cement mortar.

Description

technical field [0001] The invention relates to the technical field of wet-mixed mortar, in particular to a wet-mixed mortar additive and a preparation method thereof. Background technique [0002] Mortar is a building material mixed with inorganic cementitious materials, fine aggregates, additives and water in proportion. It is used in masonry and plastering projects in building construction to achieve building structure and surface protection, decoration, etc. The traditional mortar adopts on-site mixing, and the error of mixing time and metering device is relatively large, so it is difficult to guarantee the opening time and workability of the mortar. [0003] Wet-mixed mortar is different from the original production operation mode of traditional self-mixed mortar. It is directly produced in the commercial concrete mixing station, which can realize the industrialization and automation of production, and can be used immediately after being transported to the construction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/24
CPCC04B40/0039C04B24/16C04B24/24C04B24/06C04B24/122C04B22/147C04B24/04C04B14/06C04B22/002
Inventor 王仁元范爱国刘文亮解嵩陈墨喜刘佳斌张跃沥吴婵君
Owner DEZHOU RUNDE CONCRETE CO LTD
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