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Preparation method of natural brucite fiber modified lime-metakaolin composite mortar

A technology of brucite fiber and metakaolin is applied in the field of preparation of natural brucite fiber-modified lime-metakaolin composite mortar, which can solve the problems of less research and late start of research on L-MK repair mortar, etc. Low calcination temperature, low price, and the effect of improving mechanical properties

Inactive Publication Date: 2020-08-18
河北地质大学
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  • Application Information

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Problems solved by technology

In contrast, the domestic research on L-MK repair mortar started late, and there are relatively few researches at present.

Method used

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  • Preparation method of natural brucite fiber modified lime-metakaolin composite mortar
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  • Preparation method of natural brucite fiber modified lime-metakaolin composite mortar

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] Please refer to Fig. 1-4, in the embodiment of the present invention, a kind of preparation method of natural brucite fiber modified lime-metakaolin composite mortar, this method adopts a certain proportion of slaked lime, highly active metakaolin, standard sand, water phase After mixing, add a certain amount of washed and loosened natural brucite fiber to make brucite fiber modified lime-metakaolin composite mortar, including natural brucite fiber pretr...

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Abstract

The invention discloses a preparation method of natural brucite fiber modified lime-metakaolin composite mortar. The preparation method specifically comprises natural brucite fiber pretreatment and natural brucite fiber modified L-MK mortar, a lime-metakaolin cementing material is an inorganic cementing material having hydraulicity and prepared by mixing slaked lime and active metakaolin accordingto a certain ratio; the metakaolin is a main active component in the L-MK cementing material; therefore, the L-MK cementing material not only retains good compatibility of lime and an ancient building matrix, but also has hydraulicity of cement; the L-MK cementing material has the non-negligible advantage in the repairing work of masonry and rock soil ancient buildings; in addition, the raw materials limestone and kaolin are rich in resource, convenient to process, low in price and low in calcination temperature, CO2 in the atmospheric environment can be absorbed in the hardening process, andthus the L-MK cementing material is a low-energy-consumption environment-friendly material.

Description

technical field [0001] The invention relates to a composite mortar, in particular to a preparation method of natural brucite fiber modified lime-metakaolin composite mortar. Background technique [0002] Ancient architectural sites are an important part of human historical and cultural heritage, witnessing the development of human culture and the progress of science and technology. At present, China preserves a large number of masonry and rock and soil ancient architectural sites such as city walls, tombs, stone statues, and petroglyphs. The key to the protection of such sites lies in whether the repairing cementitious materials used are appropriate. When building cementitious materials are used in masonry, they are related to the overall mechanical properties of the building structure. When used as plastering slurry, they also control the moisture and material exchange between the inner and outer layers. It has good compatibility with the ancient building itself in terms o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12
CPCC04B28/12C04B2201/50C04B14/106C04B14/38C04B2103/302
Inventor 宋彦军陶隆凤刘云贵
Owner 河北地质大学
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