Concrete runways, roads, highways and slabs on grade and methods of making same
First Claim
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1. A method comprising:
- placing a plastic cementitious material in an insulated concrete form, wherein the cementitious material consists essentially of;
approximately 30% to approximately 80% by weight portland cement, the remaining cementitious material comprising one or more pozzolanic materials; and
allowing the cementitious material to at least partially cure in the insulated concrete form such that the temperature of the cementitious material, when plotted versus time, forms an initially ascending curve followed by a descending curve, wherein the descending curve lasts for greater than or equal to 24 hours.
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Abstract
The invention comprises a method of forming a slab on grade. The method comprises placing a first layer of insulating material horizontally on the ground and placing plastic concrete for a slab on grade on the first layer of insulating material. The plastic concrete is then formed into a desired shape having a top and sides. A second layer of insulating material is placed on the top of the plastic concrete and the first and second layers of insulating material are left in place until the concrete is at least partially cured. The second layer of insulating material is then removed. The product made by the method is also disclosed. A slab on grade is also disclosed.
132 Citations
20 Claims
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1. A method comprising:
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placing a plastic cementitious material in an insulated concrete form, wherein the cementitious material consists essentially of; approximately 30% to approximately 80% by weight portland cement, the remaining cementitious material comprising one or more pozzolanic materials; and allowing the cementitious material to at least partially cure in the insulated concrete form such that the temperature of the cementitious material, when plotted versus time, forms an initially ascending curve followed by a descending curve, wherein the descending curve lasts for greater than or equal to 24 hours. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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placing a plastic cementitious material in an insulated concrete form, wherein the cementitious material consists essentially of; approximately 30% to approximately 80% by weight portland cement, the remaining cementitious material comprising one or more pozzolanic materials; and allowing the cementitious material to at least partially cure in the insulated concrete form such that the temperature of the cementitious material achieves a temperature greater than the same cementitious material would achieve in a non-insulated concrete form and the temperature remains at a greater temperature for a time greater than or equal to 24 hours. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method comprising:
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placing a plastic cementitious material in an insulated concrete form, wherein the cementitious material consists essentially of; approximately 30% to approximately 80% by weight portland cement, the remaining cementitious material comprising one or more pozzolanic materials; and allowing the cementitious material to at least partially cure in the insulated concrete form such that the temperature of the cementitious material, when plotted versus time, forms an initially ascending curve followed by a descending curve, wherein the temperature of the cementitious material achieves a temperature greater than the same cementitious material would achieve in a non-insulated concrete form and remains at a greater temperature for a time greater than or equal to 24 hours and wherein the descending curve lasts for greater than or equal to 24 hours. - View Dependent Claims (18, 19, 20)
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Specification