Zobrazeno 1 - 10
of 25
pro vyhledávání: '"L. Števula"'
Publikováno v:
Acta Archaeologica Academiae Scientiarum Hungaricae. 58:107-134
In the paper we present results of multi-analytical study of pottery fragments archaeologically ranked from the Older Linear till the Middle Danube Tumulus Cultures, e.g. originated in the time-span of approximately 4700 years. In the studied set of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::deee4b35389a9f6c942b7123537def8c
https://doi.org/10.1556/aarch.58.2007.1.3
https://doi.org/10.1556/aarch.58.2007.1.3
Publikováno v:
Cement and Concrete Research. 26:1727-1735
The action of the saturated Ca(OH) 2 solution on the surface of the set styreneacrylate dispersion was studied by scanning electron microscope and infrared spectroscopy. The slices of the set dispersion were immersed into the saturated Ca(OH) 2 solut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a6d8ccc036ff7f0bc2232f326496c51
https://doi.org/10.1016/s0008-8846(96)00156-1
https://doi.org/10.1016/s0008-8846(96)00156-1
Publikováno v:
Cement and Concrete Research. 24:413-423
Scanning electron microscopy (SEM) connected to energy dispersive X-ray analysis of (EDAX), X-ray powder diffraction (XRD) and infrared (IR) spectroscopy were used for identification of the hydration products in the interface between blastfurnace sla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8c56efe3f49e89c32e5ed5ecf8ecede
https://doi.org/10.1016/0008-8846(94)90128-7
https://doi.org/10.1016/0008-8846(94)90128-7
Publikováno v:
Cement and Concrete Research. 24:259-266
The equilibrium dissociation temperature of ettringite 3CaO.Al 2 O 3 . 3CaSO 4 .32H 2 O in the presence of liquid water as well as those of monoulphate 3CaO.Al 2 O 3 .CaSO 4 .12H 2 O in the presence of water vapor in relation to pressure were examine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e363bd463538721d29da02ecf0bbf05
https://doi.org/10.1016/0008-8846(94)90051-5
https://doi.org/10.1016/0008-8846(94)90051-5
Publikováno v:
Cement and Concrete Research. 14:866-872
Hydrothermal studies showed the location of scawtite in the narrow internal tetrahedronfoshagite-xonotlite-CO2H2O of the system CaOSiO2CO2H2O and its compatibility with the calcium silicate hydrates in the 4-phase assemlages. The phase as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9be947f16d3e6da3b8c48f783325c79
https://doi.org/10.1016/0008-8846(84)90013-9
https://doi.org/10.1016/0008-8846(84)90013-9
Autor:
L. Števula, J. Petrovič
Publikováno v:
Cement and Concrete Research. 13:684-688
An intermediate C-S-H phase, similar to the Assarsson's “Phase Z”, with basal spacing of 16A formed when β-C2S or γ-C2S reacted with silicon dioxide (molar ratio CaO/SiO2 = 0.5–0.28) for 8 hours at 190°C under hydrothermal conditions. This i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3642566cb76a177faa429b189858c59e
https://doi.org/10.1016/0008-8846(83)90058-3
https://doi.org/10.1016/0008-8846(83)90058-3
Autor:
J. Petrovič, L. Števula
Publikováno v:
Cement and Concrete Research. 11:549-557
Water suspension of mixtures of CaO, and quartz (CaO/SiO2 = 1,2; 1,6 and 2,0) in which 10–50 wt % CaO were substituted by dolomite, were hydrothermally treated at 200°C. X-ray phase analysis of reaction products showed that chiefly scawtite and pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad1ded1ff793ad53d1506ea9c7b04545
https://doi.org/10.1016/0008-8846(81)90084-3
https://doi.org/10.1016/0008-8846(81)90084-3
Autor:
L. Števula, J. Petrovič
Publikováno v:
Cement and Concrete Research. 11:183-190
Various types of triclinic, monoclinic and rhombohedral polymorphic modifications of C 3 S were prepared by firing homogenized mixtures of pure C 3 S with the addition of 0.75, 1.50 and 4.50 wt % of La 2 O 3 or ZnO at 1600°C and by subsequent coolin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25108a0d67c9507c3c096b783537172c
https://doi.org/10.1016/0008-8846(81)90058-2
https://doi.org/10.1016/0008-8846(81)90058-2
Autor:
L. Števula, J. Petrovič
Publikováno v:
Cement and Concrete Research. 12:377-380
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8feef410046767d30188dd92809909d
https://doi.org/10.1016/0008-8846(82)90086-2
https://doi.org/10.1016/0008-8846(82)90086-2
Publikováno v:
Cement and Concrete Research. 19:519-526
Hydration and hydraulic properties of the quaternary phase Q = C20A13M3S3 were investigated. The phase is located in the subsystem C2SCAC12A7MgO in the zone of the variable mineral composition of high alumina cements (HAC). Relations between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5170c2140fd9dd26ec5548228fe97286
https://doi.org/10.1016/0008-8846(89)90003-3
https://doi.org/10.1016/0008-8846(89)90003-3