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Acta Linguistica Academica
Authors: Xiaoliang Luo and Guillaume Enguehard

. In K. Nasukawa and P. Backley (eds.) Strength relations in phonology . Berlin & New York : Mouton de Gruyter . 9 – 46 . Hayes , Bruce . 1986 . Inalterability in

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predictions concerning the strength of vowels. In section 2 , we briefly summarize how the fortition and the lenition of consonants can be derived from branchings and contours. Then, we show that these two notions can also derive the strength of vowels. In

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Introduction Knowledge of shear strength along discontinuities in rock mass is essential for the design process of underground structures, such as tunnels ( Borbély et al. 2015 ), foundations, and rock slope stability

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944 Kwak Y. K., Eberhard M. O., Kim W. S., Kim J. Shear strength of steel fiber-reinforced concrete beams without stirrups, ACI Structural Journal , Vol. 99, 2002, pp. 530

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conditions [ 1 ], and also the heat of hydration during the hardening process leads to shrinkage, inner pores which permit the reduction of strength and durability. In this situation, some additives are used to improve the desirable properties of concrete

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of Strength of Materials. MCGrawHill, 1953. http://kupffer.info/seite5.html Bojtár Imre: A szilárdságtan nagy tudósai – Saint-Venant és a lokális hatások elve. BME, 2007

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Physiology International
Authors: SL Buckner, SJ Dankel, KT Mattocks, MB Jessee, JG Mouser, and JP Loenneke

Introduction Recently, it was proposed that muscle size and strength from repeated bouts of exercise are separate physiological adaptations (i.e., changes in size are not driving changes in strength) ( 3 ). In support of this

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Early stages hydration of high initial strength Portland cement

Part I. thermogravimetric analysis on calcined mass basis

Journal of Thermal Analysis and Calorimetry
Authors: Alex Neves Junior, Romildo Dias Toledo Filho, Eduardo de Moraes Rego Fairbairn, and Jo Dweck

different water/cement ratio studied pastes. Materials For this study, a high-initial strength and sulphate resistant Portland cement (HS SR PC) [ 18 ] was used, which allows reaching high strengths still at the early hydration

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Pollack Periodica
Authors: Ildikó Buocz, Nikoletta Rozgonyi-Boissinot, Ákos Török, and Péter Görög

. Proc. 11th U.S. Symposium on Rock Mechanics 1970 Barton N., Choubey V. The shear strength of rock joints in theory and

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Calorimetry in the studies of cement hydration

Setting and hardening of Portland cement–calcium aluminate cement mixtures

Journal of Thermal Analysis and Calorimetry
Authors: Marek Gawlicki, Wiesława Nocuń-Wczelik, and Łukasz Bąk

Abstract  

Calorimetry was applied to an investigation of the early hydration of Portland cement (PC)–calcium aluminate cement (CAC) pastes. The heat evolution measurements were related to the strength tests on small cylindrical samples and standard mortar bars. Different heat-evolution profiles were observed, depending on the calcium aluminate cement/Portland cement ratio. The significant modification of Portland cement heat evolution profile within a few hours after mixing with water was observed generally in pastes containing up to 25% CAC. On the other hand the CAC hydration acceleration effect was also obtained with the 10% and 20% addition of Portland cement. As one could expect the compressive and flexural strength development was more or less changed—reduced in the presence of larger amount of the second component in the mixture, presumably because of the internal cracks generated by expansive calcium sulfoaluminate formation.

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