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US 2015/0143768 A1Published application
Anhydrite Concrete Compositions and Methods to Manufacture Precast Building System
OwnerRodrigo Mendoza-Lozanoinventor
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Abstract
An improved concrete formulation comprising gravel, sand, Portland cement, and anhydrite substituting a portion of the Portland cement for fabrication of precast concrete systems with strength properties that comply with regulatory requirements.
Claims12
An improved concrete formulation comprising:
- gravel;
- sand;
- Portland cement;
- and
- anhydrite in an amount of between approximately 50% by weight and approximately 1% by weight of said Portland cement substituted by said anhydrite.
2 more elements
A method to manufacture a precast building system comprising:
- measuring amounts of crushed lime stone, gravel, sand, Portland cement, water, and an amount of anhydrite to substitute a desired percentage of Portland cement;
- mixing and homogenizing heavy crushed limestone, gravel, and sand to create a first mixture;
- adding Portland cement to the first mixture to create a second mixture;
- mixing and homogenizing the second mixture;
- adding water to the second mixture to create a third mixture;
- mixing and homogenizing the third mixture;
- adding anhydrite to the homogenized third mixture to create a fourth mixture;
- mixing and homogenizing the fourth mixture;
- molding elements of the building system;
- compacting the building elements;
- casting the compacted elements of the building system;
- isolating the elements of the building system from the elements;
- and
- curing the elements of the building system at an appropriate temperature and relative humidity.
11 more elements
Dependencies are inferred from the claim text.