Cement and concrete research, Vol. 39 N° 8. Cement and concrete research - Août 2009
| Titre : | Cement and concrete research, Vol. 39 N° 8. Cement and concrete research - Août 2009 |
| Type de document : | Bulletin |
| Paru le : | 15/11/2009 |
Dépouillements
Article : texte imprimé
Xiaolin Pardal, Auteur ;
Isabelle Pochard, Auteur
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C-A-S-H of varying Al/Si and Ca/(Al + Si) ratios have been prepared introducing C-S-H (Ca/Si = 0.66 and 0.95) at different weight concentrations in a solution coming from the hydration of tricalcium aluminate (Ca3Al2O6) in water. XRD and EDX (TE[...]
Article : texte imprimé
F. Bellmann, Auteur ;
J. Stark, Auteur
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Blast furnace slag is used as supplementary cementing material for the production of blended cement and slag cement. Its latently hydraulic properties can be activated by several methods. Most applications employ the use of high pH values in the[...]
Article : texte imprimé
Tzen-Chin Lee, Auteur ;
Wei-Jer Wang, Auteur ;
Ping-Yu Shih, Auteur
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The insufficient early strengths of cement mortars in which partial cement had been replaced by pulverized slag melted from municipal solid waste incinerator (MSWI) fly-ash were tackled in this study by adjusting the basicity of the slag through[...]
Article : texte imprimé
Sulfur speciation in a granulated blast furnace slag (GGBFS) was analyzed by X-ray absorption near edge structure spectroscopy (XANES) before and after activation by saturated calcium hydroxide and five normal sodium hydroxide solutions. The sol[...]
Article : texte imprimé
J. Pourchez, Auteur ;
P. Grosseau, Auteur ;
B. Ruot, Auteur
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The impact of cellulose ethers (CE) on C3A hydration was examined to support the understanding of the retarding effect of CE on cement hydration. In this sense, we successively studied the CE adsorption on ettringite and calcium hydroaluminates,[...]
Article : texte imprimé
M. Palacios, Auteur ;
Y.F. Houst, Auteur ;
P. Bowen, Auteur
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Alkali-activated slag (AAS) binders are obtained by a manufacturing process less energy-intensive than ordinary Portland cement (OPC) and involves lower greenhouse gasses emission. These alkaline cements allow the production of high mechanical s[...]
Article : texte imprimé
Véronique Collin, Auteur ;
Pierre-Henri Jézéquel, Auteur
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This article describes an experimental methodology offering efficiency criteria for granular materials in terms of their mixing distributive capability. The methodology is based on analyzing the distribution kinetics of colored tracer particles [...]
Article : texte imprimé
W.L. Lai, Auteur ;
S.C. Kou, Auteur ;
W.F. Tsang, Auteur
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This paper presents the experimental results of a study of the relationships between light-weight (LWAC) and normal aggregate concrete (NAC) properties, as well as radar wave properties that are derived by using ground penetrating radar (GPR). T[...]
Article : texte imprimé
Given the density value, elastic properties of a homogeneous and isotropic material can be determined provided that primary and shear wave (P- and S-wave) velocities are known. P-waves are easier to monitor and detect compared to the S-waves. In[...]
Article : texte imprimé
Xiao Hui Wang, Auteur ;
Stefan Jacobsen, Auteur ;
Jian Ying He, Auteur
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The characteristics of the profiles of elastic modulus and hardness of the steel fiber–matrix and fiber–matrix–aggregate interfacial zones in steel fiber reinforced mortars have been investigated by using nanoindentation and Scanning Electron Mi[...]
Article : texte imprimé
The pessimum proportion and pessimum size effects for alkali–silica reaction-induced deterioration of concrete (ASR) and the pozzolanic effect of fine siliceous admixtures in concrete have been explained based on the proposed ASR model [T. Ichik[...]
Article : texte imprimé
G. E. Abdelaziz, Auteur ;
A.M.K. Abdelalim, Auteur ;
Y.A. Fawzy, Auteur
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The short and long-term effects of electro-chemical chloride extraction (ECE) treatment on corrosion rate of corroded reinforcement have been studied. The factors controlling ECE treatment were identified, and the alterations which occurred in t[...]
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