Cement and concrete research, Vol. 39 N° 11. Cement and concrete research - Novembre 2009
| Titre : | Cement and concrete research, Vol. 39 N° 11. Cement and concrete research - Novembre 2009 |
| Type de document : | Bulletin |
| Paru le : | 09/03/2010 |
Dépouillements
Article : texte imprimé
A. Wesselsky, Auteur ;
O.M. Jensen, Auteur
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Pure clinker phases are often used to test cement hydration behavior in simplified experimental conditions. These phases are in general structurally identical to, but chemically much simpler than their heavily substituted counterparts found in t[...]
Article : texte imprimé
In the family of aluminous cements the potential of strontium aluminate, the strontium–barium aluminate and the barium aluminate cements have been sporadically and incoherently studied over several decades in various parts of the world and more [...]
Article : texte imprimé
S. Pourcheta, Auteur ;
L. Regnaud, Auteur ;
J.P. Perez, Auteur
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Hydration reactions of C3A with various amounts of calcium sulfate hemihydrate, gypsum or a mixture of the two, were investigated by isothermal microcalorimetry, and a monitoring of the ionic concentrations of diluted suspensions. This study sho[...]
Article : texte imprimé
Stefan Jacobsen, Auteur ;
Lars Haugan, Auteur ;
Tor Arne Hammer, Auteur
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The variation in fresh concrete flow rate over the pipe cross section was investigated on differently coloured and highly flowable concrete mixes flowing through pipes of different materials (rubber, steel, acryl). First, uncoloured (gray) concr[...]
Article : texte imprimé
M. Nehdi, Auteur ;
S. Al Martini, Auteur
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A controlled shear stress–shear rate rheometer was used to determine the viscoelastic behavior of cement paste incorporating various superplasticizers and subjected to prolonged mixing at high temperature. At a low applied shear stress range, th[...]
Article : texte imprimé
G.H.D. Tonoli, Auteur ;
E. Fuente, Auteur ;
C. Monte, Auteur
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The objective of the present research was to evaluate the effect of fibre morphology (e.g., length, width, fibrillation, broken ends, content of fines and number of fibres per gram) on flocculation and drainage properties of fibre–cement suspens[...]
Article : texte imprimé
Burak Felekoğlu, Auteur ;
Kamile Tosun, Auteur ;
Bülent Baradan, Auteur
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The compatibility of matrix and fibre properties is one of the key parameters in the successful design of fibre reinforced cementitious composites. In order to achieve the desired performance, the properties of each constituent of composite shou[...]
Article : texte imprimé
Mustafa Şahmaran, Auteur ;
Victor C. Li, Auteur
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This paper presents the durability of Engineered Cementitious Composites (ECC) that contain high percentages of Class-F fly ash (FA). ECC is a newly developed high performance fiber reinforced cementitious composite with substantial benefit in b[...]
Article : texte imprimé
Jianzhong Lai, Auteur ;
Wei Sun, Auteur
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The dynamic behaviour of ultra-high performance cementitious composite (UHPCC) with compressive strength of 200 MPa with different steel fiber volume fractions was studied under impact using the split Hopkinson pressure bar. Three aspects of the[...]
Article : texte imprimé
Experimental investigation of the effect of temperature on the first desorption isotherm of concrete
In the framework of the radioactive waste management in France, interim storage concrete structures should be submitted to temperatures up to 80 °C and subsequent desiccation. The impact of temperature on the sorption properties of concretes has[...]
Article : texte imprimé
Stéphane Poyet, Auteur ;
Sébastien Charles, Auteur
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In the field of radioactive waste management the concrete structures are expected to undergo significant heating due to the waste thermal power and significant drying (in the French design, the temperature is not expected to exceed 80 °C). The d[...]
Article : texte imprimé
R.E. Melchers, Auteur ;
C. Q. Li, Auteur
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The corrosion of steel reinforcement bars in reinforced concrete structures exposed to severe marine environments usually is attributed to the aggressive nature of chloride ions. In some cases in practice corrosion has been observed to commence [...]
Article : texte imprimé
Ruijin Zhang, Auteur ;
Arnaud Castel, Auteur ;
Raoul François, Auteur
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This paper deals with two corroded reinforcement concrete beams, which have been stored under sustained load in a chloride environment for 14 and 23 years respectively. The evolution of corrosion pattern of reinforcement and its influence on ser[...]
Article : texte imprimé
Ruijin Zhang, Auteur ;
Arnaud Castel, Auteur ;
Raoul François, Auteur
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This paper deals with two corroded reinforcement concrete beams, which have been stored under sustained load in a chloride environment for 14 and 23 years respectively. The evolution of corrosion pattern of reinforcement and its influence on ser[...]
Article : texte imprimé
Antonios Kanellopoulos, Auteur ;
Farhat A. Farhat, Auteur ;
Demetrios Nicolaides, Auteur
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This study investigates the effect of thermal cycles on the fracture properties of the cement-based bi-materials. Sixty eight cubes were exposed to a varied number of 24-hour thermal cycles ranging from 0 to 90 and subsequently were tested in a [...]
Article : texte imprimé
A. Izaguirre, Auteur ;
J. Lanas, Auteur ;
J. I. Álvarez, Auteur
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Two different anionic surfactants, sodium oleate and calcium stearate, commercialized as water repellents for cement-based mortars, were added to lime-based mortars in order to check whether they were improved by these admixtures. Different prop[...]
Article : texte imprimé
Lucía Linares, Auteur ;
López Atalaya, Auteur ;
Servando Chinchón, Auteur
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A cement quantification method has been developed in Ø 15 × 30 cm concrete specimens applying selective stain. A tannic acid–tartaric acid solution was used to stain the cement paste.
This paper explains the procedure to determine the quantit[...]
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