Abstract: Radiation shielding composite material can include basalt fiber and concrete. The basalt fiber can be basalt-boron fiber, basalt-gadolinium fiber, basalt-boron gadolinium fiber, or a combination thereof. The concentration can be up to about 60 kilograms per cubic meter and, in some embodiments, range from about 60 kilograms per cubic meter to about 20 kilograms per cubic meter. The basalt fiber can be formed from a basalt melt that includes up to about 20% of boron oxide, up to about 20% of gadolinium oxide, and up to about 10% of boron oxide and about 10% of gadolinium oxide. The concrete can be ordinary concrete or heavy (i.e., barite) concrete.

Abstract: Methods and apparatus for producing fibers from igneous rock, including basalt include heating igneous rock by electrical conductive coils to achieve an homogenous melt and forming homogenous fibers from the melt.

Abstract: Improved composite fibers, and structural materials mixed with the improved composite fibers, are produced by an improved process that vertically texturizes and impregnates resin into the fibers without introducing any substantial amount of microbubbles in the resin. By using vertical impregnation and twisting of fiber strands with specific viscosity control, stronger composite fibers, in which substantially no microbubbles are trapped, are produced with improved tensile strength and lower variance in tensile strength, for use in strengthening structural concrete and other structural materials.

Abstract: Improved composite fibers, and structural materials mixed with the improved composite fibers, are produced by an improved process that vertically texturizes and impregnates resin into the fibers without introducing any substantial amount of microbubbles in the resin. By using vertical impregnation and twisting of fiber strands with specific viscosity control, stronger composite fibers, in which substantially no microbubbles are trapped, are produced with improved tensile strength and lower variance in tensile strength, for use in strengthening structural concrete and other structural materials.

Abstract: Methods and apparatus for producing fibers from igneous rock, including basalt include heating igneous rock by electrical conductive coils to achieve an homogenous melt and forming homogenous fibers from the melt.

Abstract: Methods and apparatus for producing fibers from igneous rock, including basalt include heating igneous rock by electrical conductive coils to achieve an homogenous melt and forming homogenous fibers from the melt.

Abstract: Composite fibers created by a process including vertically texturizing and impregnating resin into the fibers at controlled viscosity results in stronger fibers in which virtually no microbubbles are trapped resulting in improved tensile strength for use in reinforcing concrete and other materials.

Abstract: Composite fibers created by a process including vertically texturizing and impregnating resin into the fibers at controlled viscosity results in stronger fibers in which virtually no microbubbles are trapped resulting in improved tensile strength for use in reinforcing concrete and other materials.

Abstract: Composite fibers created by a process including vertically texturizing and impregnating resin into the fibers at controlled viscosity results in stronger fibers in which virtually no microbubbles are trapped resulting in improved tensile strength for use in reinforcing concrete and other materials.

Abstract: Methods and apparatus for producing fibers from igneous rock, including basalt include heating igneous rock by electrical conductive coils to achieve an homogenous melt and forming homogenous fibers from the melt.