Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Pierre Mounanga"'
Publikováno v:
Materials Science Forum. 987:27-32
Delayed Ettringite Formation (DEF) is an internal sulfate attack caused by heat-induced decomposition and/or prevention of normal ettringite formed during the initial hydration of cement at elevated temperature (above about 70°C) and its re-crystall
Publikováno v:
KSCE Journal of Civil Engineering. 21:1359-1366
Delayed Ettringite Formation (DEF) is seen as a form of internal sulfate attack of cementitious materials, caused by early age heating to a temperature higher than 70°C. In this paper, the effect of fly ash on delayed ettringite formation of heat-cu
Publikováno v:
Construction and Building Materials
Construction and Building Materials, Elsevier, 2014, 55, pp.158-167. ⟨10.1016/j.conbuildmat.2014.01.037⟩
Construction and Building Materials, Elsevier, 2014, 55, pp.158-167. ⟨10.1016/j.conbuildmat.2014.01.037⟩
International audience; This article presents an experimental comparative study of the early-age behavior of binary and ternary cementitious matrices, combining Portland cement (PC), ground granulated blast furnace slag (BFS) and limestone filler (LF
Publikováno v:
Thermochimica Acta
Thermochimica Acta, Elsevier, 2013, 564, pp.70-82. ⟨10.1016/j.tca.2013.03.034⟩
Thermochimica Acta, Elsevier, 2013, 564, pp.70-82. ⟨10.1016/j.tca.2013.03.034⟩
International audience; After mixing of the cement with water, most of the anhydride products sustain the hydration process and this leads to the hydrate products, e.g. CSH, Ca(OH)2, Afm and Aft. The mentioned hydration process is a highly complex ph
Publikováno v:
Cement and Concrete Composites
Cement and Concrete Composites, Elsevier, 2013, 39, pp.43-59. ⟨10.1016/j.cemconcomp.2013.03.005⟩
Cement and Concrete Composites, Elsevier, 2013, 39, pp.43-59. ⟨10.1016/j.cemconcomp.2013.03.005⟩
International audience; The self-induced stress in mortars caused by autogenous shrinkage phenomenon at very early age has been investigated by taking advantage of the experimental results and application of hygro-Cosserat theory. Three cement matric
Publikováno v:
Thermo-Hydromechanical and Chemical Coupling in Geomaterials and Applications: Proceedings of the 3 International Symposium GeoProc'2008
Autogenous shrinkage is considered to be one of the main phenomena involved in the early‐age cracking of cementitious systems with low water‐to‐cement ratio. It results from the volume difference between the hydration products (hydrates) and th
Publikováno v:
Advances in Cement Research. 24:325-335
The aim of this study was to evaluate the effect of sodium tripolyphosphate (STPP) on the early-age behaviour of cementitious matrices. Different concentrations of STPP were considered (1–50 g/l). Rheological tests, setting time measurements, micro
Publikováno v:
International Journal of Thermophysics
International Journal of Thermophysics, Springer Verlag, 2012, 33 (7), http://link.springer.com/article/10.1007/s10765-012-1244-7. ⟨10.1007/s10765-012-1244-7⟩
International Journal of Thermophysics, Springer Verlag, 2012, 33 (7), http://link.springer.com/article/10.1007/s10765-012-1244-7. ⟨10.1007/s10765-012-1244-7⟩
International audience; The development of low-cost lightweight aggregate (LWA) mortars and concretes presents many advantages, especially in terms of lightness and thermal insulation performances of structures. Low-cost LWA mainly comes from the rec
Publikováno v:
Construction and Building Materials. 28:747-758
Workability and consistency are fundamental properties of cement-based materials: their control ensures a correct and easy casting of the material without segregation of aggregates. The workability of cementitious systems depends on their rheological
Publikováno v:
Computational Materials Science. 50:2063-2074
The present paper focuses on the modeling of internal stresses induced by the restrained autogenous shrinkage of hydrating cementitious matrix in cement-based mortars. At very early age (0–48 h), these self-induced stresses may be relatively high a