Zobrazeno 1 - 10
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pro vyhledávání: '"Kayyali, A."'
Autor:
O.A. Kayyali, M.N. Haque
Publikováno v:
Cement and Concrete Research. 25:531-542
Two methods were used to determine the ‘free’ and ‘water soluble’ chloride ions concentration in four differing strength grade concretes. Each grade of concrete had varying concentration of Cl− admixed as NaCl. In all 24 different batches o
Autor:
O.A. Kayyali
Publikováno v:
Cement and Concrete Research. 13:575-579
Publikováno v:
Cement and Concrete Research. 18:763-773
The influence of an Australian flyash on Cl− and OH− ion concentration of cement mortar pore solutions was investigated by preparing NaCl and CaCl2-bearing mortars with 30% replacement of cement with flyash, and analyzing the pore solutions extra
Autor:
M.N. Haque, O.A. Kayyali
Publikováno v:
Cement and Concrete Research. 18:895-900
Hardened Portland cement paste samples were immersed in sodium chloride solution. Their pore solution was expressed and analysed for Cl − and OH − ions concentrations. The development of free Cl − and of Cl − /OH − ratio is discussed in rel
Autor:
O.A. Kayyali, M.N. Haque
Publikováno v:
Cement and Concrete Research. 18:636-648
1% of Cl− ion by weight of cementitious materials was added as CaCl2 to mortar mixes with and without flyash. Accelerated carbonation was applied on the mortars after short and long fog curing periods. The results showed significant increase of Cl
Autor:
O.A. Kayyali
Publikováno v:
Cement and Concrete Research. 19:423-433
Plain portland cement paste of low w/c ratio was immersed in high to very high concentrations of sodium or magnesium sulphates. Compressive strength development was monitored up to a period exceeding two years. The pore size distribution characterist
Autor:
M.N. Haque, O.A. Kayyali
Publikováno v:
Cement and Concrete Research. 18:145-146
This article discusses the paper by taryal, chowdhury and matala (see IRRD 293269). The following points are made: (a) the effectiveness of proprietary curing compounds have yet to be evaluated in the severe climate conditions described in the paper;
Autor:
O.A. Kayyali
Publikováno v:
Cement and Concrete Research. 14:445-446
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