One hectare comprises between 1.2 and 1.6 football pitches, as soccer fields are known in British English. An internationally-sanctioned soccer field is 100 to 110 meters in length by 64 to 75 meters in width, comprising between 0.62 and 0.82 hectares depending on the field. Keep Learning.
From Wikipedia, the free encyclopedia. Alkaliâaggregate reaction is a term mainly referring to a reaction which occurs over time in concrete between the highly alkaline cement paste and non-crystalline silicon dioxide, which is found in many common aggregates.he alkaliâaggregate reaction is a general, but relatively vague, expression which can lead to confusion. More precise definitions include the following: 1  Alkaliâsilica reaction (ASR, the most common reaction of this type); 2  Alkaliâsilicate reaction, and; 3  Alkaliâcarbonate reaction.
Alkalosis is a condition of excess base (alkali) in the body fluids. This is the opposite of excess acid (acidosis), and can be caused by many different conditions. Causes, incidence, and risk factors. The lungs and kidneys regulate the acid/base status of the body.Decreased carbon dioxide or increased bicarbonate levels create an excessive alkaline state called alkalosis. Respiratory alkalosis is caused by lower carbon dioxide levels.Hyperventilation (increased rate of breathing) causes the body to lose carbon dioxide.he lungs and kidneys regulate the acid/base status of the body. Decreased carbon dioxide or increased bicarbonate levels create an excessive alkaline state called alkalosis.