Results 21 to 30 of about 4,094 (234)

Porous inorganic materials for fire protection of industrial structures

Magazine of Civil Engineering, 2021
The necessity to study the thermophysical properties of porous inorganic materials is due to the wide use of thin-walled structures, the fire protective coating of which is performed when use porous materials. One of the most dangerous physical influence,
Vasiliy Gumenyuk, Anatoliy Kuzmin, Nikolai Romanov, Alexey Permiakov, Oksana Gumenyuk, Ivan Dmitriev   +5 more
doaj   +1 more source

ADSORPTION OF COPPER IN EXPANDED VERMICULITE: KINETICS AND EQUILIBRIUM [PDF]

Anais do XX Congresso Brasileiro de Engenharia Química, 2015
The aim of this work was to evaluate copper adsorption on expanded vermiculite through kinetic and equilibrium studies. The kinetics of adsorption of copper into vermiculite was assessed by kinetic phenomenological models of pseudofirst order, pseudo-second-order and intra-particle diffusion models as well as a mass transfer model in the external film.
E. NISHIKAWA, A. F. ALMEIDA NETO, M. G. A. VIEIRA   +2 more
openaire   +1 more source

Dispersed reinforcement in concrete technology [PDF]

E3S Web of Conferences, 2019
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.
Efimov Boris, Isachenko Sergey, Kodzoev Mukhamad-Basir, Dosanova Gulzar, Bobrova Ekaterina   +4 more
doaj   +1 more source

Hydrothermal synthesis of a novel expanded vermiculite/xonotlite composite for thermal insulation

, 2023
Natural disasters caused by global warming are threatening the survival of mankind. Reducing carbon emissions is an effective way to prevent global warming.
Mo, Wei, Feng, Jinpeng, Su, Xiujuan, Hwang, Jiann Yang, Dai, Tianya, Wang, Xiaoben, Liu, Shuhan, Wu, Zhenjiang   +7 more
core   +1 more source

Expanded Vermiculite-Filled Polyurethane Foam-Core Bionic Composites: Preparation and Thermal, Compression, and Dynamic Cushion Properties. [PDF]

Polymers (Basel), 2019
In this article, expanded vermiculite (EV)-enhanced polyurethane foam bionic composites inspired by pomelo peel is proposed. The columnar lattice structure mold is employed to constitute the periodic interface structure and gradient foam structure, and ...
Wang H, Li TT, Ren H, Peng H, Huang SY, Lin Q, Lin JH, Lou CW.   +7 more
europepmc   +2 more sources

Modified materials based on layered minerals as ameliorants for the remediation of podzol in the industrial barren

RUDN Journal of Agronomy and Animal Industries, 2021
Layered silicates, such as serpentine and vermiculite, have properties that make it possible to use materials based on them as components of environmental technologies.
Tatiana K. Ivanova, Marina V. Slukovskaya, Irina A. Mosendz, Evgeniya A. Krasavtseva, Victoria V. Maksimova, Inna P. Kanareykina, Anna A. Shirokaya, Irina P. Kremenetskaya   +7 more
doaj   +1 more source

TECHNOLOGY AND EQUIPMENT FOR PROCESSING OF LARGE-SIZED VERMICULITE MICAS OF THE KOVDOR DEPOSIT

Eurasian Physical Technical Journal, 2020
"The development of technology and equipment for the processing of large-sized vermiculite mica obtained from mining waste from the Kovdorsky deposit allows the large-scale vermiculite to be returned to processing industry.
A.I. Nizhegorodov, A.N. Gavrilin, B.B. Moyzes, K.A. Kuvshinov   +3 more
doaj   +1 more source

Expanded Vermiculite: A Short Review about Its Production, Characteristics, and Effects on the Properties of Lightweight Mortars

Buildings, 2023
Global temperatures have led to an increasing need for air conditioning systems. So, because of this fact, buildings have been improved in terms of their thermal and energy efficiency.
Plínio Campos de Assis Neto, Leane Priscilla Bonfim Sales, Palloma Karolayne Santos Oliveira, Iranilza Costa da Silva, Ilana Maria da Silva Barros, Aline Figueiredo da Nóbrega, Arnaldo Manoel Pereira Carneiro   +6 more
doaj   +1 more source

Characterization of bentonite, vermiculite and soil as potential materials to compose the natural barriers in a near-surface repository

Brazilian Journal of Radiation Sciences, 2022
The use of nuclear technology is growing in Brazil, where it is possible to carry out the entire nuclear fuel cycle. This technology generates radioactive waste that must be treated before being released into the environment or stored in suitable ...
Daisy Mary Marchezini dos Santos, Samara Alves Barroso, Thaís Braga Teixeira, Clédola Cássia Oliveira de Tello   +3 more
doaj   +1 more source

The Effect of Natural Resin on Thermo-physical Properties of Expanded Vermiculite-Cement Composites

, 2020
This study focuses on production of lightweight concrete that presents thermal insulation property. Lightweight concretes were produced using resin-added cement and expanded vermiculite. The rates of expanded vermiculite were determined as 20%, 40%, 60%,
Cay, Vedat Veli, Kocyigit, Fatih
core   +1 more source