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 in which the body fluids have excess base (alkali). This is the opposite of excess acid (acidosis). The fluids in your body contain two substances: acids and bases; alkali is the base.The balance between acids and bases is called pH balance, and having too much or too little base or acid can cause a pH imbalance.Decreased carbon dioxide (an acid) or increased bicarbonate (a base) levels in the blood may result in alkalosis.ypokalemic alkalosis occurs when your body lacks the normal amount of potassium. Potassium is a mineral, often derived from food, which is essential to the proper functioning of the heart, kidneys, muscles, and nervous and digestive systems.