Light weight cementitious formulations

A light weight cementitious composition comprising a dry mixture of:

• a) a hydraulic cement component in said dry mixture comprising a first masonry cement constituent meeting ASTM standard C91-89, a second cement constituent selected from the group consisting of pozzolanic cement and expansive cement meeting ASTM standard C-845-90, and a third portland cement constituent meeting ASTM standard C-150-89 selected from the group consisting of Type I cement, Type II cement and Type III, each of said first cement constituent and said second cement constituent being present in an amount less than the amount of said third cement constituent;
• and
• b) an aggregate component in said dry mixture comprising a lightweight aggregate present in an amount to provide a bulk density of said dry mixture of no more than about 100 pounds per cubic foot.

A lightweight cementitious composition comprising a dry mixture of:

• a) a hydraulic cement component in said dry mixture comprising a first masonry cement constituent selected from the class consisting Type S cement, Type N cement, and Type M cement, a second cement constituent having a high pozzolan content relative to said first constituent and a third cement constituent having high early strength characteristics relative to said first and second constituents, each of said first and second constituents being present in an amount less than the amount of said third constituent;
• and
• b) an aggregate component in said dry mixture comprising a lightweight aggregate present in an amount to provide a bulk density of said dry mixture of no more than about 100 pounds per cubic foot.

A light weight cementitious composition comprising a dry mixture of:

• a) a hydraulic cement component in said dry mixture comprising a first masonry cement constituent selected from the class consisting of Type S cement, Type M cement and Type N cement, a second cement constituent having a high pozzolan content relative to said first cement constituent and a third cement constituent selected from the class consisting of Type I cement, Type II cement, and Type III cement and present in an amount greater than the amount of each of said first and second constituents;
• and
• b) an aggregate component in said dry mixture comprising a light weight aggregate present in an amount to provide a bulk density of said dry mixture of no more than 100 pounds per cubic foot.

A lightweight cementitious composition comprising a dry mixture of:

• a) a hydraulic cement component in said dry mixture comprising a first masonry cement constituent selected from the class consisting of Type S cement, Type M cement and Type N cement, a second cement constituent having a high pozzolan content relative to said first constituent, and a third cement constituent having an expansive ettringite forming sulfoalumina content, each of said first and second constituents being present in an amount less than the amount of said third constituent;
• and
• b) an aggregate component in said dry mixture comprising a lightweight aggregate present in an amount to provide a bulk density of said dry mixture of no more than about 100 pounds per cubic foot.

A lightweight cementitious composition comprising a dry mixture of:

• a) a hydraulic cement component comprising a mixture of Type S masonry cement and Type K expansive cement in a weight ratio of Type K cement to Type S cement within the range of 2:1-4:1 and;
• b) an aggregate component in said dry mixture comprising a lightweight aggregate present in an amount greater than the amount of said cement component to provide a bulk density of said dry mixture of no more than about 100 pounds per cubic foot.

A light weight cementitious composition comprising a dry mixture of:

• a) a hydraulic cement component in said dry mixture comprising a first cement constituent comprising an air entraining agent which provides entrained air in an amount within the range of 4-8 volume percent when said composition is mixed with water in the amount within the range of 21-23 wt. % of said dry mixture, a second cement constituent selected from the group consisting of pozzolanic material meeting ASTM standard C-618-89a and expansive cement meeting ASTM standard C-845-90, and a third portland cement constituent meeting ASTM standard C-150-89 selected from the group consisting of Type I cement, Type II cement and Type III, each of said first and said second cement constituents being present in an amount less than the amount of said third cement constituent;
• and
• b) an aggregate component in said dry mixture comprising a lightweight aggregate present in an amount to provide a bulk density of said dry mixture of no more than about 100 pounds per cubic foot.