Magnesium citrate is a magnesium preparation in salt form with citric acid in a 1:1 ratio (1 magnesium atom per citrate molecule). The name magnesium citrate is ambiguous and sometimes may refer to other salts such as trimagnesium citrate which has a magnesium:citrate ratio of 3:2.
A cement is a binder, a substance that sets and hardens and can bind other materials together. The word cement can be traced back to the Roman term opus caementicium, used to describe masonry resembling modern concrete that was made from crushed rock with burnt lime as binder.he most important uses of cement are as a component in the production of mortar in masonry, and of concrete, a combination of cement and an aggregate to form a strong building material.
First, it is important to understand that cement is just one ingredient of concrete; these two terms are not synonymous. Concrete is the mixture of water, some type of aggregate â such as crushed rocks or sand â and cement, which acts as a binder to hold all the materials together once hardened.he final three types of mortar are known as the air-entrained cements, because they have microscopic air bubbles added to their mixtures to increase the durability of the concrete. Air-entrained cements are especially useful in environments that have repetitive freezes.