Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Lawrence E. Kukacka"'
Publikováno v:
Journal of Polymer Science Part C: Polymer Symposia. 16:579-589
The kineties and product characteristics of the Co60 gamma-radiation-induced polymerization of ethylene have been studied as a function of pressure, radiation intensity, and temperature. Experiments were carried out under conditions which ranged in p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::339d6b1cb45607704317c361e6bb41b3
https://doi.org/10.1002/polc.5070160156
https://doi.org/10.1002/polc.5070160156
Autor:
Lawrence E. Kukacka, Jacob Block, Leonidas Petrakis, Ronald P. Webster, David F. Myers, L. Louis Hegedus, Leonard E. Dolhert
Publikováno v:
Environmental Science & Technology. 34:2293-2298
We report here the development of a method for the chemical digestion of chrysotile asbestos in asbestos-containing fireproofing to levels lower than the regulatory threshold. The resulting fireproofing, no longer defined as asbestos-containing, can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9443d10a7edca1e715effd524e7e7a0d
https://doi.org/10.1021/es990432d
https://doi.org/10.1021/es990432d
Autor:
Lawrence E. Kukacka, Marita L. Allan
Publikováno v:
Cement and Concrete Research. 25:511-521
Fibrillated polypropylene fibres were added to cementitious grouts to determine whether improved mechanical properties and durability could be achieved. The grouts were studied for suitability as subsurface containment barriers around stabilized haza
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6b27c7f15e671772d74434f978fbfcd
https://doi.org/10.1016/0008-8846(95)00040-j
https://doi.org/10.1016/0008-8846(95)00040-j
Autor:
Lawrence E. Kukacka, Marita L. Allan
Publikováno v:
Geothermics. 24:269-282
Calcium phosphate cements were investigated as potential lost circulation control materials for geothermal wells. The calcium phosphate cements were produced by reacting calcium aluminate (high alumina) cement with sodium phosphate compounds. Pumpabl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a568ee72dae9683e2f2adb7fd21aba6
https://doi.org/10.1016/0375-6505(94)00052-e
https://doi.org/10.1016/0375-6505(94)00052-e
Autor:
Lawrence E. Kukacka, Marita L. Allan
Publikováno v:
Cement and Concrete Research. 24:671-681
Cementitious grouts with and without polypropylene fibres were evaluated for use as containment barriers around waste landfills located in an arid environment. Viscosity, flow time, water permeability and microstructure of the grouts were investigate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::114d09db616616d961e7830586c45dd8
https://doi.org/10.1016/0008-8846(94)90191-0
https://doi.org/10.1016/0008-8846(94)90191-0
Publikováno v:
Journal of Materials Science. 27:180-190
Well cements resistive to high-temperature (∼300 °C) brines containing carbon dioxide (CO2) are needed for use in the completion of geothermal wells. Recent attempts to complete wells through aquifers containing ∼1000 p.p.m. concentrations of CO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3a571a8a5d2cb31b692623fde8d2d7c
https://doi.org/10.1007/bf02403661
https://doi.org/10.1007/bf02403661
Publikováno v:
Journal of Materials Science. 27:2863-2872
In an attempt to protect steel fibre reinforcements from corrosion and improve their adherence to cement pastes, we deposited a zinc phosphate (ZnPh) conversion coating on the surface of the fibres. At the interfacial contact zones between the cement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06f470ddcc20400b749b5a99a111f175
https://doi.org/10.1007/bf01154093
https://doi.org/10.1007/bf01154093
The feasibility of using the products of free-radical copolymerization of modified organosiloxane in the formation of a thermally stable and chemically resistant polymer concrete for use in geothermal environments has been demonstrated. Specimens hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4d78af1d6f4fd78a48040f1905669e1
https://doi.org/10.1520/stp30073s
https://doi.org/10.1520/stp30073s
Publikováno v:
Journal of Materials Science. 26:1045-1050
An anhydrous α-Zn3(PO4)2 phase converted by the dehydration of hydrous zinc phosphate, Zn3(PO4)2·2H2O, crystal coatings in air at a temperature of approximately 300 °C, significantly enhances the corrosion resistance of steel, and also reduces the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c04d04505e4f4892ab72ecf6369186f7
https://doi.org/10.1007/bf00576784
https://doi.org/10.1007/bf00576784
Publikováno v:
Journal of Applied Polymer Science. 40:1857-1870
Polymide (PI) resins which are produced by an in situ imidization condensation reaction of polyamic acid (PAA) precursors were evaluated for use as binders in high-temperature performance lightweight cement-filled material systems. Unfortuanately, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9895e3cb5e937561f9a7c116a24a20f
https://doi.org/10.1002/app.1990.070401105
https://doi.org/10.1002/app.1990.070401105