Pozzolan for use in a cement composition having a low heat of hydration

A method of cementing in a subterranean formation comprising:

• introducing a cement composition into a wellbore penetrating the subterranean formation,
• wherein at least a portion of the subterranean formation has a temperature less than or equal to the freezing point of an aqueous liquid, and
• wherein the cement composition comprises:
• (A) a Portland cement;
• (B) water;
• and
• (C) a pozzolan, wherein the pozzolan has a calcium oxide concentration of less than 45% by weight, and having an aluminum oxide concentration in the range of about 15% to about 40% by weight, wherein the pozzolan has a concentration of at least 30% by weight of the Portland cement, wherein the pozzolan is not a fly ash, and wherein the particle size of the pozzolan is selected such that a mixture consisting essentially of the cement, the water, and the pozzolan develops a compressive strength of at least 500 psi at a time of 48 hours, a temperature of 100° F., and a pressure of 3,000 psi;
• wherein the cement composition has a heat of hydration of less than 50 BTU per pound;
• and
• causing or allowing the cement composition to set in the wellbore after the step of introducing.