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Compound type thickening agent applicable to common wet-mixed mortar

A wet-mixed mortar and composite technology, which is applied in the field of building materials, can solve the problems of low strength, poor water retention, and few types of thickeners, and achieve the effects of good working performance, meeting construction requirements, and good compressive strength.

Active Publication Date: 2011-08-17
中建西部建设西南有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there are some water-retaining thickening materials that improve the performance of ordinary wet-mixed mortar in the domestic construction market, but there are some problems. Some have improved the performance of mortar, but the strength is low; The water retention is poor, and the operability of the mortar is not ideal; some have better performance, and the dosage is extremely low, which leads to high requirements for the accuracy of the metering system, which is not convenient for production and application
There are few types of thickeners with good comprehensive performance and suitable for general production and application available in the market

Method used

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  • Compound type thickening agent applicable to common wet-mixed mortar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~5

[0030] The raw materials and formulations of Examples 1-5 are as shown in Table 1.

[0031] Table 1, Composite thickener formulation table suitable for ordinary wet-mixed mortar (mass parts)

[0032]

[0033] The lithium slag is light yellow powder with a specific surface area of ​​420m 2 / kg.

[0034] The silica fume described is densified micro-silica fume, gray, with a specific surface area of ​​200,000 cm 2 / g.

[0035] The zeolite powder is in the form of a light yellow powder, with 11.2% remaining on an 80 μm square hole sieve.

[0036] The melamine water reducer is white powder, easily soluble in water, with a water content of 1.2% and a water reducing rate of 19.2%.

[0037] The polyacrylamide is white powder, non-ionic, easily soluble in water, and has a molecular weight of 8 million.

[0038] The sodium gluconate is light yellow powdery solid, easily soluble in water, with a water content of 0.5%.

[0039] The white sugar is edible white sugar with a sucrose...

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Abstract

The invention relates to a compound type thickening agent applicable to common wet-mixed mortar. The compound type thickening agent applicable to common wet-mixed mortar is characterized by being prepared by mixing a raw materials including 35-54 parts of lithium slags by weight, 5-8 parts of siliceous dust by weight, 4-6 parts of zeolite powder by weight, 0.5-1.4 parts of melamine water reducer by weight, 0.03-0.05 part of polyacrylamide by weight, 1.20-2.80 parts of sodium gluconate by weight, 0.04-0.09 part of sugar by weight and 0.006-0.010 part of triterpenoid saponins by weight. The raw materials are weighted according to the mass proportioning, added in a mixing machine and fully mixed to be uniform, and then the product of the compound type thickening agent can be obtained. The compound type thickening agent can obviously improve the water-retaining property, the cohesiveness and the softness of the common wet-mixed mortar, and enable the common wet-mixed mortar to obtain not only excellent working properties which can meet construction requirements but also better anti-compression strength, cohesive strength and anti-contraction property; and the compound type thickening agent can be applicable to ground mortar, masonry mortar and plastering mortar in the common wet-mixed mortar.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a composite thickener suitable for common wet-mixed mortar. Background technique [0002] Construction mortar is an indispensable main material in construction engineering. It is divided into two categories: ordinary mortar and special mortar. Among them, ordinary mortar includes three types: ground mortar, masonry mortar, and plastering mortar. Special mortar includes waterproof mortar and ceramic tile. Adhesive mortar, interface treatment mortar, self-leveling mortar, grouting mortar, etc., while ordinary mortar accounts for the highest proportion and the largest amount of all construction mortars. [0003] Ordinary mortar can be divided into two categories: dry-mixed mortar and wet-mixed mortar according to different production and construction methods. Dry-mixed mortar, also known as dry-mixed mortar, is made of various dry raw materials (including cementitious materials, f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38
CPCC04B40/0039Y02W30/91C04B14/047C04B18/144C04B18/146C04B20/0076C04B20/008C04B24/10C04B24/2652C04B28/00C04B2103/302C04B24/223
Inventor 高育欣徐芬莲林喜华杨仕海王斌赵晚群夏远英
Owner 中建西部建设西南有限公司
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