Kieselguhr application in absorbing material preparation, kieselguhr cement-based composite absorbing material and preparation method thereof

Abstract

The invention discloses a kieselguhr application in electromagnetic wave absorbing material preparation, a low-cost kieselguhr cement-based composite absorbing material and a preparation method thereof. The raw materials of the kieselguhr cement-based composite absorbing material are dry material and water, wherein the dry material is composed of 80-90% cement and 10-20% kieselguhr by weight percent, and the ratio of water to the dry material is 0.30-0.40. The kieselguhr used as absorbing agent has wide material sources and low cost and can realize high value-added utilization of kieselguhr. The kieselguhr can be used as mineral additive of cement concrete material, so that kieselguhr application has no unfavorable influence on the physical mechanics performance of the cement-based material. The preparation method of the kieselguhr cement-based composite absorbing material has the advantages of simple technology, convenient construction, no difference with common cement concrete material, no need of special devices and easy promotion.

Description

technical field [0001] The invention relates to the field of building materials, in particular to the application of diatomite, a low-cost electromagnetic wave absorbing material and a preparation method thereof. Background technique [0002] With the development of modern technology and the widespread use of various electronic products, electromagnetic wave radiation has an increasing impact on the environment. After noise pollution, air pollution, and water pollution, electromagnetic wave pollution has become the fourth largest public hazard that threatens human survival. The increasing density of various electromagnetic radiation in the building space makes the problem of electromagnetic protection gradually arouse people's attention. Due to the disadvantages of high reflection in electromagnetic shielding protection, more and more attention has been paid to the research of electromagnetic wave absorbing materials. Within the range covered by electromagnetic radiation, e...

AI Technical Summary

Problems solved by technology

However, although a variety of new diatomite building materials have been developed at home and abroad in recent years, including: diatomite cement mixture, diatomite lightweight aggregate and wall materials, diatomite lightweight insulation materials, Diatomite moisture-proof coatings and green building materials, etc., but the use of diatomite in the building materials industry in my country is still mainly used as a common raw material for ordinary diatomite bricks and silicate insulation products, so that it has not been fully used , and there is also a gap in product weight with developed countries. Therefore, it is necessary to develop new uses of diatomite to further increase its added value

Although diatomite has been applied in the field of functional materials with high added value in recent years, including filter aids, adsorbents, and carriers, the current research has not involved its influence on the absorbing properties of materials, let alone considering the use of As a component of cement-based absorbing materials

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