Results 231 to 240 of about 567,569 (296)
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Journal of Canadian Petroleum Technology, 1972
Abstract Cementing operations in Arctic environments continue to require research on many unanswered problems. Laboratory studies and observation of field practices helped answer some of these questions. Areas of laboratory study were:electrical resistivities of neat and drilling mud contaminated cement.stability of
W.C. Cunningham +2 more
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Abstract Cementing operations in Arctic environments continue to require research on many unanswered problems. Laboratory studies and observation of field practices helped answer some of these questions. Areas of laboratory study were:electrical resistivities of neat and drilling mud contaminated cement.stability of
W.C. Cunningham +2 more
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Contact Dermatitis, 1976
Four cases are presented of men who sustained burns after contact with premised concrete. The pathogenesis of the condition is discussed.
H R, Vickers, D H, Edwards
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Four cases are presented of men who sustained burns after contact with premised concrete. The pathogenesis of the condition is discussed.
H R, Vickers, D H, Edwards
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, 2021
Low heat Portland (LHP) cement has been widely used in hydraulic projects in China, while the relatively low early strength limits its further application in engineering.
Lei Wang +4 more
semanticscholar +1 more source
Low heat Portland (LHP) cement has been widely used in hydraulic projects in China, while the relatively low early strength limits its further application in engineering.
Lei Wang +4 more
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A novel method for semi-quantitative analysis of hydration degree of cement by 1H low-field NMR
, 2021Based on the analytical 1H low-field nuclear magnetic resonance (NMR) technique, we developed a novel method and corresponding model to analyze the hydration degree (αt) of cement in cement paste under different curing conditions.
L. Heng +3 more
semanticscholar +1 more source
Clinical Orthopaedics and Related Research, 1987
Does "cement disease" exist? The bony environment surrounding a loosened cemented prosthesis is an abnormal pathologic condition which, if left unattended, will progress to a total failure of the joint including an inhibition of function and immobilizing pain. That biomaterial properties of the cement used for fixation also contribute to the pathologic
L C, Jones, D S, Hungerford
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Does "cement disease" exist? The bony environment surrounding a loosened cemented prosthesis is an abnormal pathologic condition which, if left unattended, will progress to a total failure of the joint including an inhibition of function and immobilizing pain. That biomaterial properties of the cement used for fixation also contribute to the pathologic
L C, Jones, D S, Hungerford
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Advances in understanding cement hydration mechanisms
Cement and Concrete Research, 2019Progress in understanding hydration mechanisms of alite and Portland cement is reviewed. Up to the end of the induction period, dissolution rates determined by the undersaturation of the solution dominate the reaction, but, better understanding is needed
K. Scrivener +3 more
semanticscholar +1 more source
Characteristics of steel slags and their use in cement and concrete—A review
Resources, Conservation and Recycling, 2018Steel slags are industrial by-products of steel manufacturing, characterized as highly calcareous, siliceous and ferrous. They can be categorized into basic oxygen furnace (BOF) slag, electric arc furnace (EAF) slag, and ladle furnace (LF) slag. They are
Yi Jiang, T. Ling, C. Shi, S. Pan
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Cement distribution during post cementation
Journal of Dentistry, 1981Abstract The distribution of the cement around parallel-sided and tapered posts coated with cement, and when cement was inserted into the prepared post hole, have been compared. In every case coating the post with cement gave rise to an incomplete cement film. Rough-surfaced posts and tapered posts retained more cement than smooth parallel posts. The
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Annals of Emergency Medicine, 1980
Portland cement carries a significant potential for morbidity if care is not exercised in its use. A 24-year-old construction worker suffered burns of both lower legs when wet cement seeped into his work boots causing burns and secondary cellulitis severe enough to preclude working for four weeks.
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Portland cement carries a significant potential for morbidity if care is not exercised in its use. A 24-year-old construction worker suffered burns of both lower legs when wet cement seeped into his work boots causing burns and secondary cellulitis severe enough to preclude working for four weeks.
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Carbon dioxide reduction potential in the global cement industry by 2050
Cement and Concrete Research, 2017This paper, which is a contribution to the UNEP series on Eco-Efficient Cements, examines the role of material-based solutions to reducing CO 2 emissions from cement production considering factors that could influence implementation.
Sabbie A. Miller +3 more
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