Nano material for CA mortar

A nano-material and mortar technology, which is applied in the field of manufacturing auxiliary materials for cement asphalt mortar, can solve the problems affecting the strength and other properties of the CA mortar layer, easy delamination, poor compatibility, etc.

Inactive Publication Date: 2010-02-10
ZHEJIANG LANTING HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor compatibility between the various components in the existing CA mortar, the stability of the system i

Method used

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  • Nano material for CA mortar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1 (Comparative example of prior art): take 100 parts of cement, 220 parts of fine aggregate, 0.55 part of defoaming agent, 10 parts of expansion agent, 180 parts of asphalt emulsion, and 25 parts of water, and test the sample after mixing and stirring .

Embodiment 2

[0011] Example 2: Take 100 parts of cement, 220 parts of fine aggregates, 0.55 parts of defoamer, 10 parts of expansion agent, nanomaterials (nano-SiO 2 : Nano-CaCO 3 : 1 part of zinc oxide = 45:50:5), 180 parts of asphalt emulsion, and 25 parts of water. After mixing and stirring, the samples were tested.

Embodiment 3

[0012] Example 3: Take 100 parts of cement, 220 parts of fine aggregate, 0.55 parts of defoamer, 10 parts of expansion agent, nanomaterials (nano-SiO 2 : Nano-CaCO 3 : 1 part of zinc oxide = 38:57:5), 180 parts of asphalt emulsion, and 25 parts of water, and the samples were tested after mixing and stirring.

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Abstract

The invention relates to a nano material for CA mortar, belonging to the field of manufacturing technology of auxiliary material used for cement asphalt mortar. The nano material comprises the components by weight percent: 30-45% of nano silicon dioxide, 50-65% of nano calcium carbonate and 5-10% of nano zinc oxide, and the sum of the weight percent of the components is 100%. The nano material hasreasonable compound design, can effectively enhance the compression strength of the CA mortar, and improves the technical properties thereof.

Description

technical field [0001] The invention relates to a nano-material for CA mortar, which belongs to the technical field of manufacture of auxiliary materials for cement asphalt mortar. Background technique [0002] Cement asphalt mortar (CA mortar for short) is a key component of medium-slab ballastless tracks such as intercity high-speed railways, urban high-speed light rails, and urban subways. It is mainly composed of cement, asphalt emulsion, and fine aggregates. During the construction of the slab-type ballastless track, CA mortar is poured into the space reserved between the prefabricated track slab and the concrete base to form a homogeneous filling cushion with both rigidity and elasticity, which can adjust the geometric accuracy of the track and absorb vibration and impact. The dual role of energy. Due to the poor compatibility between the components in the existing CA mortar, the stability of the system is poor, and it is easy to delaminate, which affects the strength...

Claims

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Application Information

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IPC IPC(8): C04B22/10
Inventor 杨林江汤薇杨峰
Owner ZHEJIANG LANTING HI TECH
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