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A water-retaining thickener with bentonite as the main raw material and its preparation method

A technology of water-retaining thickener and main raw material, which is applied in the field of water-retaining thickener and its preparation, can solve the problems such as the adverse effects of mortar strength and impermeability, and achieve the goal of improving layer segregation, reducing dosage, and requiring low precision Effect

Inactive Publication Date: 2016-01-20
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The addition of microfoam is also an option to improve the workability of mortar, but it has an adverse effect on the strength and impermeability of mortar

Method used

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  • A water-retaining thickener with bentonite as the main raw material and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0034] A water-retaining thickener with bentonite as the main raw material, which is formulated with bentonite 100, cellulose ether 1.10, starch ether 3.50, fly ash 33.0, thixotropic agent 1.0, and water reducer 6.00. Mix and stir according to the weight ratio of 42.5 grade ordinary Portland cement 16.8%, river sand 67.4%, a water-retaining thickener with bentonite as the main raw material 1%, and water 14.7%. The measured properties of the mortar are shown in Table 1.

Embodiment 2

[0036] A water-retaining thickener with bentonite as the main raw material, which is formulated with bentonite 100, cellulose ether 0.55, starch ether 2.50, fly ash 40.5, thixotropic agent 3.5, and water reducer 3.90. Mix and stir according to the weight ratio of 42.5 grade ordinary Portland cement 16.8%, river sand 67.4%, a water-retaining thickener with bentonite as the main raw material 1%, and water 14.7%. The measured properties of the mortar are shown in Table 1.

Embodiment 3

[0038] A water-retaining thickener with bentonite as the main raw material, which is formulated with 100 bentonite, 0.11 cellulose ether, 1.65 starch ether, 55.0 fly ash, 4.0 thixotropic agent, and 1.43 water reducer. Mix and stir according to the weight ratio of 42.5 grade ordinary Portland cement 16.8%, river sand 67.4%, a water-retaining thickener with bentonite as the main raw material 1%, and water 14.7%. The measured properties of the mortar are shown in Table 1.

[0039] Table 1 embodiment mortar performance test result

[0040]

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Abstract

The invention belongs to the technical field of building materials, and in particular relates to a water-retaining thickener with bentonite as a main raw material and a preparation method thereof. It is composed of bentonite, cellulose ether, starch ether, fly ash, thixotropic agent and water reducer. The product of the invention has a very good effect on improving the working performance of the mortar. The product of the invention has better workability, and can improve the durability, crack resistance and impermeability of buildings when mixed into mortar. When the product of the invention is applied in mortar, the accuracy of the mixing amount is not high, which is convenient for use in construction and improves construction efficiency. The product of the invention can partially replace some cement in mortar, greatly reduces the amount of cement used, reduces environmental pollution, saves energy, and can provide a new low-cost building water-retaining thickening material for the construction industry.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a water-retaining thickener with bentonite as a main raw material and a preparation method thereof. Background technique [0002] For a long time, the field of building materials has been a development field that consumes a lot of energy and involves a wide range of areas. For this reason, the state has promulgated and implemented a series of laws and regulations on environmental protection and energy conservation in industrial and civil buildings to enhance people's awareness of environmental protection and energy conservation. Masonry and plastering works are important components in the field of construction engineering, and their construction is inseparable from building mortar. Therefore, the workability of building mortar during construction is very important for construction engineering. In order to respond to the theme of national environmental prot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38
Inventor 孙振平董超颖
Owner TONGJI UNIV
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