Alkali-aggregate Reactions. Some aggregates containing reactive silica will react with the alkalies in cement-sodium and potassium oxides-to form an alkali-silica gel which takes up water and swells. This causes abnormal expansion and map-cracking of the concrete.ome aggregates containing reactive silica will react with the alkalies in cement-sodium and potassium oxides-to form an alkali-silica gel which takes up water and swells. This causes abnormal expansion and map-cracking of the concrete.
Lomustine and prednisone are both a bit immunosuppressive. She may just have a urinary tract infection. UTI's can be brought on by stress, such as being boarded. It may take her a bit longer to get over the infection due to the Lomustine, prednisone and the lymphoma.
Low-dose steroids are used commonly in a number of diseases, including patients with asthma or rheumatoid arthritis, he says. Prednisone also is used to treat Crohn's disease and other inflammatory bowel disorders.