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A kind of nano-titanium nitride and titanium nitride whisker dry-mixed mortar and preparation method thereof

A technology of titanium nitride whisker and nano-titanium nitride, which is applied in the field of nano-titanium nitride and titanium nitride whisker dry-mixed mortar and its preparation, and can solve the problem that there is no relevant report on nano-titanium nitride-enhanced dry-mixed mortar , to achieve the effect of high cost performance, improved strength and good mechanical properties

Inactive Publication Date: 2018-08-17
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there are no relevant reports and patent applications on the use of nano-titanium nitride and titanium nitride whiskers to strengthen dry-mixed mortar.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of nano-titanium nitride and titanium nitride whisker dry-mixed mortar, comprising the steps of:

[0033] After mechanically stirring 0.4 part of cement, 0.5 part of fly ash and 0.1 part of lime, add 2 parts of sand and mechanically stir evenly, and finally add 0.005 part of nano-titanium nitride and titanium nitride whisker (the mass ratio of the two 7:3), 0.01 part of thickener and 0.01 part of water reducer are mixed evenly to prepare dry-mixed mortar. The compressive strength, bond strength and shrinkage were tested according to the standard method, and the specific data are shown in Table 1.

Embodiment 2

[0035] A preparation method of nano-titanium nitride and titanium nitride whisker dry-mixed mortar, comprising the steps of:

[0036] After mechanically stirring 0.4 part of cement, 0.5 part of fly ash and 0.1 part of lime, then add 2 parts of sand and mechanically stir evenly, and finally add 0.01 part of nano-titanium nitride and titanium nitride whisker (the ratio of the two is Mass ratio 7:3), 0.01 part of thickener and 0.01 part of water reducer are mixed evenly to prepare dry-mixed mortar. The compressive strength, bond strength and shrinkage were tested according to the standard method, and the specific data are shown in Table 1.

Embodiment 3

[0038] A preparation method of nano-titanium nitride and titanium nitride whisker dry-mixed mortar, comprising the steps of:

[0039] After mechanically stirring 0.4 part of cement, 0.5 part of fly ash and 0.1 part of lime, then add 2 parts of sand and mechanically stir evenly, and finally add 0.02 part of nano-titanium nitride and titanium nitride whisker (the mass ratio of the two 7:3), 0.01 part of thickener and 0.01 part of water reducer are mixed evenly to prepare dry-mixed mortar. The compressive strength, bond strength and shrinkage were tested according to the standard method, and the specific data are shown in Table 1.

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Abstract

The invention provides nano-titanium nitride and titanium nitride crystal whisker dry-mixed mortar and a preparation method thereof. The nano-titanium nitride and titanium nitride crystal whisker dry-mixed mortar is prepared from 0.02-5 parts of nano-titanium nitride, 0.02-5 parts of titanium nitride crystal whisker, 20-40 parts of cement, 15-50 parts of blending stock, 0.02-5 parts of thickening agents, 0.02-5 parts of water reducing agents and 35-75 parts of sand mixtures. The preparation method includes the following steps that firstly, the mentioned raw materials are prepared into composite cementitious materials, the sand mixtures and addition agents, the obtained composite cementitious materials, the sand mixtures and the addition agents are evenly mixed in a certain proportion, and the nano-titanium nitride and titanium nitride crystal whisker dry-mixed mortar is obtained. By means of the nano-titanium nitride and titanium nitride crystal whisker dry-mixed mortar, the inherent defect of being hard and brittle of the mortar is improved, the strength, cracking resistance, seepage resistance and other properties of the mortar are improved, and the nano-titanium nitride and titanium nitride crystal whisker dry-mixed mortar and the preparation method thereof are simple in technology, controllable in process, good in mechanical property, low in cost and high in cost performance, and the preparation method is capable of being used for multiple types of dry-mixed mortar.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a nano-titanium nitride and titanium nitride whisker dry-mixed mortar and a preparation method thereof. Background technique [0002] Dry-mixed mortar is a new type of green building material. It is a dry mixture prepared in a certain proportion by cementitious materials, fine aggregates, admixtures and additives (thickeners, water reducers) and pre-mixed in the factory. . The mortar is transported to the construction site in bulk or in bags, and can be used after mixing with water. [0003] Dry-mixed mortar has developed rapidly due to its good environmental protection, quality stability, and variety diversity. However, with the increase in the amount of admixtures, dry-mixed mortar generally has the following defects, such as low compressive strength , poor bonding performance, large shrinkage, etc., which lead to unstable performance of the currently u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/02C04B14/38
Inventor 朱建平杨政鹏冯春花范书珩田梦迪高超峰郭本凯管学茂
Owner HENAN POLYTECHNIC UNIV
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