| Title |
Portlandcementinio skiedinio ilgaamžiškumo tyrimo paspartinimas |
| Another Title |
Acceleration of the portlandcement mortar durability test. |
| Authors |
Vektaris, B |
| DOI |
10.5755/j01.ct.59.1.1525 |
| Full Text |
|
| Is Part of |
Cheminė technologija.. Kaunas : KTU. 2012, Nr. 1, p. 19-24.. ISSN 1392-1231 |
| Abstract [eng] |
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% Na2SO4 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 recomendations 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% Na2SO4 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. |
| Published |
Kaunas : KTU |
| Type |
Journal article |
| Language |
Lithuanian |
| Publication date |
2012 |
| CC license |
|
