Back to results
US 2004/0149170 A1Published application
Cellular concrete having normal compressive strength
OwnerOsvaldo Moraninventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerOsvaldo Moraninventor
Estimating the term…
A method for producing hardened cellular concrete having normal compressive strength by producing tiny, unconnected, pre-pour, air-filled bubbles during mixing of cement, cementitious substitutes, sand, coarse aggregates, water, fiber, a surfactant, aluminum flakes or powder, calcium formate, and magnesium silico fluoride and then producing additional tiny, unconnected, post-pour, hydrogen-filled bubbles to replace those air-filled bubbles which are destroyed while pouring the fresh concrete during the casting operation. Only as much matrix is added to the coarse aggregate as is needed to engulf the aggregates while enabling the aggregate particles to be in contact.
A method of sequentially using surfactants for producing pre-pour air-filled bubbles during mixing of fresh concrete and of including a selected amount of aluminum in said matrix for producing post-pour hydrogen-filled bubbles, whereby said post-pour bubbles replace a portion of said pre-pour bubbles which are destroyed during casting of said fresh concrete to form cellular concrete.
A method for ascertaining the exact amount of a preferred matrix to be added to a mixture of aggregates, thereby ascertaining the optimum value of the volume ratio of cementitious matrix to said aggregates, whereby said aggregates will be in contiguous contact with the interstices between said aggregrates filled with and surround by said matrix, according to the following steps:
A method of making a fiber reinforced lightweight high strength cellular concrete casting having a cured weight of under ninety pounds per cubic foot, which comprises the steps of:
A fiber reinforced lightweight high strength cellular concrete casting having a cured weight of under ninety pounds per cubic foot, made by the process of:
Dependencies are inferred from the claim text.