Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Žymantas RUDŽIONIS"'
Publikováno v:
Case Studies in Construction Materials, Vol 16, Iss , Pp e00879- (2022)
This study is aimed at preparing thermal insulating lightweight self-compacting cement composites (LWSCCC) below the density of 1400 kg/m3 by using lightweight minerals and aggregates. Study results showed that incorporation of porous-structured expa
Externí odkaz:
https://doaj.org/article/abdeed1c0b5047738d780db1f9d48ff8
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract This study is aimed to investigate the effect of carbon nanotubes on the properties of lightweight aggregate concrete containing expanded glass and silica aerogel. Combinations of expanded glass (55%) and hydrophobic silica aerogel particles
Externí odkaz:
https://doaj.org/article/c445f53bb7284638bd9d8733c417c01a
Publikováno v:
Medžiagotyra, Vol 22, Iss 1, Pp 113-117 (2016)
The experimental tests established the relations of rigid mineral wool products (with different structure) macrostructure parameters with main their mechanical characteristic – compressibility. The products within the nominal density between 45 and
Externí odkaz:
https://doaj.org/article/57d7bd9688d74912b43da31498b3b300
Autor:
Danutė VAIČIUKYNIENĖ, Vitoldas VAITKEVIČIUS, Žymantas RUDŽIONIS, Vilimantas VAIČIUKYNAS, Arūnas Aleksandras NAVICKAS, Dalia NIZEVIČIENĖ
Publikováno v:
Medžiagotyra, Vol 22, Iss 2, Pp 299-304 (2016)
In this paper the properties and the hydration of Portland cement pastes containing zeolitized silica fume were studied. Hydrosodalite was obtained by zeolitization of silica fume. XRD, DSC, SEM and energy-dispersive X-ray spectroscopy were used as i
Externí odkaz:
https://doaj.org/article/9a44df90e0c04db7ace5e426fbb795a9
Publikováno v:
Medžiagotyra, Vol 21, Iss 2, Pp 303-308 (2015)
This paper presents the research on theestimation of macrostructure parameters in accordance with the dominated fibresorientation. During experimental tests established the relations of physicaland mechanical characteristics with structural parameter
Externí odkaz:
https://doaj.org/article/ef4b93f1660f44b386546388e6719b47
Autor:
Vitoldas Vaitkevičius, Danutė VAIČIUKYNIENĖ, Aras Kantautas, Aurelijus Kartovickis, Žymantas Rudžionis
Publikováno v:
Medžiagotyra, Vol 21, Iss 1, Pp 136-142 (2015)
Zeolites are appropriate supplementary cementitious materials in cement and concrete industry. In the present work synthetic zeolites was used like supplementary material in hardened cement paste and some properties as well as its influence on Portla
Externí odkaz:
https://doaj.org/article/2259cf86d6f54bc39ee4f6e94050d254
Publikováno v:
The Baltic Journal of Road and Bridge Engineering, Vol 7, Iss 1, Pp 13-21 (2012)
The article describes the main damages of box girder viaducts constructed in Lithuania and discusses the reasons for their occurrence. Several viaducts are examined in more detail with regard to their design data and experimental results. Using finit
Externí odkaz:
https://doaj.org/article/689990a6b3074293ac9c17181ebb9057
Publikováno v:
Medžiagotyra, Vol 17, Iss 2, Pp 197-202 (2011)
The results of experimental investigation of reusing concrete dust (CD), from old concrete construction demolition as cement replacement are presented in the article. Tests were conducted on cement mass by replacing 0 % - 30 % of cement with CD mass.
Externí odkaz:
https://doaj.org/article/d679a715fa4d4f2fa421c0a19dc9a045
Publikováno v:
Journal of Civil Engineering and Management, Vol 20, Iss 6 (2014)
The paper deals with selection of foundations for bearing walls of residential buildings depending on the strength of soil and taking into account the economic benefit. Based on in-situ investigation of soil conditions in different Lithuanian regions
Externí odkaz:
https://doaj.org/article/7f709165474843e58dacd804b3f97829
Publikováno v:
Journal of Civil Engineering and Management, Vol 8, Iss 4 (2002)
The influence of naphthalene formaldehyde superplasticizers (NFS), lignosulfonate plasticizers (LSP) and silica fume on cement paste properties and complex usage of these admixtures for high-strength concrete production are investigated in this resea
Externí odkaz:
https://doaj.org/article/51b56ff041a34b89888ced92bf13889f