Zobrazeno 1 - 10
of 55
pro vyhledávání: '"BOGDAN-VALENTIN PAUNESCU"'
Publikováno v:
Nonconventional Technologies Review, Vol 28, Iss 3 (2024)
A procedure for making a wooden heat-insulating product for construction applications through lignin removing is presented in this paper. The non-conventional procedure is almost similar to that known and used in the pulp and paper industry, but the
Externí odkaz:
https://doaj.org/article/dd0a6af9757a43b8b75f35779d02c227
Publikováno v:
Nonconventional Technologies Review, Vol 28, Iss 3 (2024)
A new and original dosing of alumina-silicate wastes in preparing mixture of the geopolymeric material is presented in this paper. Unlike the usual preponderant utilization of fly ash and ground blast furnace slag, the article adopted a major proport
Externí odkaz:
https://doaj.org/article/35b30059199243eebdc87599d391b1d1
Publikováno v:
Nonconventional Technologies Review, Vol 28, Iss 1 (2024)
Thermoset polymer composite was made in an original version less expensive than the known techniques, in which alumina-borosilicate glass recycled from used laboratory glass was chosen as filler into the mixture of starting materials together with po
Externí odkaz:
https://doaj.org/article/66c86a6db71f49eeaebc2a160f095862
Publikováno v:
Nonconventional Technologies Review, Vol 28, Iss 1 (2024)
High-strength cement-free geopolymer concrete with 62.9 MPa (after 28 curing days) was experimentally produced from blast furnace slag, recycled concrete, and metakaolin as alumina-silicate binders as well as silica fume as silica-rich ultra-fine pow
Externí odkaz:
https://doaj.org/article/776c29db26464218abfae8d663b2c5fc
Publikováno v:
Nonconventional Technologies Review, Vol 28, Iss 1 (2024)
Self-compacting concrete, as a performing material whose casting and compacting can be made without applying the vibration technique, due to the flowability properties that allow it to flow by its own mass, was produced and tested in several versions
Externí odkaz:
https://doaj.org/article/9e75d4d738c34f94bb8f4513667ac23e
Publikováno v:
Nonconventional Technologies Review, Vol 28, Iss 1 (2024)
Peculiarities of the modern cellular concrete manufacturing technique were borrowed in the expanding glass technique at ambient temperature presented in the work. Using aluminum dust in calcium hydroxide solution and adding carboxymethyl cellulose (C
Externí odkaz:
https://doaj.org/article/0b1489c1ae2441ce82a1d7104938858e
Publikováno v:
Journal of Engineering Studies and Research, Vol 29, Iss 3 (2024)
Geopolymer foam with thermal insulation properties was made by foaming the alumino-silicate mixture composed of fly ash and clay brick waste activated with alkaline activator (water glass and sodium hydroxide in aqueous solution). Other mixture compo
Externí odkaz:
https://doaj.org/article/a1d43b6d51a74b5eb4a1a20ce8723c33
Publikováno v:
Nonconventional Technologies Review, Vol 27, Iss 4 (2023)
A technique for manufacturing wood heat-insulating material for construction (known as wood delignification) without seriously affecting the cellulosic structure was inspired by the practices of the pulp and paper industry and adapted to the mentione
Externí odkaz:
https://doaj.org/article/ffab0a0cecee452b88f19ef80da48ba6
Publikováno v:
Nonconventional Technologies Review, Vol 27, Iss 3 (2023)
Producing foamed bottle type with excellent heat-insulating features (denseness within the limits of 0.30-0.45 g·cm-3, heat conduction in the range of 0.064-0.093 W·m-1·K-1, and porousness within the limits of 78.6-85.7 %), and simultaneously high
Externí odkaz:
https://doaj.org/article/eebef2fa43514ae9acc36ad65e558fed
Publikováno v:
Nonconventional Technologies Review, Vol 27, Iss 3 (2023)
Cellular gravel based on alumino-silicate wastes including residual clay brick recovered from construction demolition and fly ash resulted from coal burning in energy industry was experimentally made. The expanding process made with glycerin as a liq
Externí odkaz:
https://doaj.org/article/f2eec062290b4031973b66a3dd9f2e09