E3S Web Conf.
Volume 110, 2019International Science Conference SPbWOSCE-2018 “Business Technologies for Sustainable Urban Development”
|Number of page(s)||8|
|Section||Energy Efficiency in the Construction|
|Published online||09 August 2019|
Dispersed reinforcement in concrete technology
1 NRU Moscow state university of civil engineering, 129337 Yaroslavskoye av. 26, Moscow, Russia
2 Karakalpak state university named after Berdakh, 230100 Academician Ch. Abdirov 1, Nukus, Karakalpakstan, Uzbekistan
3 NRU Higher School of Economics, 101000 Myasnitskaya st. 20, Moscow, Russia
* Corresponding author: firstname.lastname@example.org
The methods of disperse reinforcement of a concrete matrix with the help of fibers make it possible to manufacture structures of complex configuration and solve problems of frost resistance of products. Fiber replaces secondary reinforcement, reducing the volume of use of structural steel reinforcement. Cellular fibrous concrete is characterized by high performance properties, especially increased strength in bending and stretching, impact strength and crack resistance. As a reinforcing component, it is preferable to use mineral fibers or thin basalt fiber. The use of polyamide fiber is allowed, but there are difficulties in forming adhesive contacts between the fiber and the mineral matrix of cellular concrete. A feature of mineral fibers is that they are high adhesive to the cement matrix. One of the promising types of dispersed bulk reinforcement of lightweight concrete is the use of expanded vermiculite. Expanded vermiculite can simultaneously be considered as a reinforcing component of a lamellar structure, as a component that reduces the density of the material and its thermal conductivity, as well as improves the fire protection performance. Expanded vermiculite can be used both in piece cladding products and as a part of dry warm and fire retardant plaster mixes.*
© The Authors, published by EDP Sciences, 2019
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