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- W2081273175 abstract "The paper offers a discussion of results obtained during a joint test of the resistance of cement mortar samples to frost and sulphate corrosion. It has been found that with the cyclic freezing of mortar samples saturated in the 5% Na 2 SO 4 solution and their subsequent thawing in the solution it is possible to accelerate twice the begining of their deterioration. A new method of accelerated determination of the cement product durability has been worked out. The following recommendations should be considered: 40 × 40 × 160 mm samples should be made of cement and standard CEN sand with their mass ratio C / S = 1 : 4 and water and cement ratio W / C = 0.6. Freezing should be performed during 7 ±1 h at -18 ±2 °C, and the samples should be kept soaked in the 5% Na 2 SO 4 solution at room temperature. The duration of one cycle is 24 h, and the duration of the whole test depends on the type of cement and may take 3 to 6 months. DOI: http://dx.doi.org/10.5755/j01.ct.59.1.1525" @default.
- W2081273175 created "2016-06-24" @default.
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- W2081273175 date "2012-04-17" @default.
- W2081273175 modified "2023-09-27" @default.
- W2081273175 title "ACCELERATION OF THE PORTLANDCEMENT MORTAR DURABILITY TEST" @default.
- W2081273175 doi "https://doi.org/10.5755/j01.ct.59.1.1525" @default.
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