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High-performance protective mortar and preparation method thereof

A high-performance, mortar technology, applied in the field of construction, can solve the problems of cracking, hollowing, and falling off of the mortar protective layer, and achieve the effects of reducing cracking, high anti-split strength, and strong adhesion

Inactive Publication Date: 2019-03-19
北京市住宅产业化集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The invention proposes a new type of high-performance protective mortar, which is used in the outer surface protection technology of carbon fiber reinforcement technology, and solves the problems of cracking, hollowing and falling off of the mortar protective layer on the market

Method used

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  • High-performance protective mortar and preparation method thereof

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Effect test

Embodiment 1

[0032] Mortar of the present invention is made up of the raw material of following weight portion:

[0033] Cement: 57 parts, limestone: 7 parts, quartz sand: 29.5 parts, starch ether: 3 parts, bentonite thixotropic lubricant: 2.5 parts, polyethylene oxide: 0.1 parts, grade A cellulose: 0.4 parts, polypropylene fiber: 0.5 servings.

Embodiment 2

[0035] Mortar of the present invention is made up of the raw material of following weight portion:

[0036] Cement: 48 parts, limestone: 9 parts, quartz sand: 35.8 parts, starch ether: 2.7 parts, bentonite thixotropic lubricant: 3.6 parts, polyethylene oxide: 0.1 parts, grade A cellulose: 0.4 parts, polypropylene fiber: 0.4 parts.

Embodiment 3

[0038] Mortar of the present invention is made up of the raw material of following weight portion:

[0039] Cement: 63 parts, limestone: 5 parts, quartz sand: 26.4 parts, starch ether: 3.4 parts, bentonite thixotropic lubricant: 1.2 parts, polyethylene oxide: 0.12 parts, grade A cellulose: 0.2 parts, polypropylene fiber: 0.68 servings.

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Abstract

The invention discloses high-performance protective mortar and a preparation method thereof. The mortar is prepared from the following raw materials in parts by weight: 38-63 parts of cement, 5-9 parts of limestone powder, 25-45 parts of graded quartz sands, 2.7-3.4 parts of starch ester, 1.2-3.6 parts of bentonite thixotropic lubricant, 0.07-0.12 part of polyoxyethylene, 0.2-0.4 part of methylcellulose and 0.34-0.66 part of polypropylene fibers. The mortar has strong adhesive strength, high tensile splitting strength and strong adhesion, and does not have a bubbling phenomenon; the mortar hascertain ductility, can perform certain deformation according to deposition deformation and temperature deformation of a main body structure, has certain anti-cracking performance, and has small shrinkage performance, which is nearly zero shrinkage, so that shrinkage deformation can be prevented; and the mortar does not have cracking or bubbling, so that natural falling can hardly happen, and theeffect of protecting carbon fiber materials can be durable.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a high-performance protective mortar used for reinforcement projects and a preparation method thereof. Background technique [0002] Concrete and reinforced concrete structures are the most commonly used structure types in contemporary construction projects, and are famous for their high bearing capacity, durability, fire resistance, and wear resistance. However, with the popularization of concrete structures and the diversification of use environments, the erosion hazards of the environment are also increasing. The durability and service life of concrete structures have become a topic of great concern in the field of civil engineering. Common concrete diseases mainly include: concrete carbonation, freeze-thaw and corrosion damage caused by environmental problems; natural and thought-induced deformation and damage of concrete structures; insufficient structural bearing capac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02
CPCC04B28/025C04B2201/50C04B14/28C04B14/06C04B24/38C04B24/32C04B24/383C04B24/20C04B22/00C04B16/0633
Inventor 岑丽丽刘立平袁啸天杨思忠沈海利刘洋
Owner 北京市住宅产业化集团股份有限公司