Abstract: An horticultural blend is disclosed. The horticultural blend includes coal refuse and slag blended with at least a portion of the coal refuse. The coal refuse has a particle size, the particle size corresponding with all material in the coal refuse having a maximum dimension of less than about 2 inches and at least about 25% of the material in the coal refuse being capable of passing through a standard number 4 sieve. The horticultural blend has a pH within a range of about 3.5 and about 10 and the horticultural blend facilitates growth of vegetation when applied to a coal refuse pile at a thickness of less than about 2 feet.

Abstract: A coal refuse remediation process is described. The process includes providing coal refuse and blending a slag with at least a portion of the coal refuse to form a medium. The coal refuse has a particle size. The medium has a pH within a range of about 3.5 and about 10 and the medium facilitates growth of vegetation when applied to a coal refuse pile at a thickness of less than about 24 inches.

Abstract: A coal refuse remediation process is described. The process includes providing coal refuse and blending a slag with at least a portion of the coal refuse to form a medium. The coal refuse has a particle size. The medium has a pH within a range of about 3.5 and about 10 and the medium facilitates growth of vegetation when applied to a coal refuse pile at a thickness of less than about 24 inches.

Abstract: The present disclosure describes a method of treating soil and a method of sequestering heavy metals in soil. The method of treating soil includes applying a blend to the soil to form treated soil, the blend including a slag by-product having a soluble compound. The soluble compound includes silicon. The method of sequestering heavy metals includes applying a blend to soil to form treated soil, the blend including a slag by-product having a soluble compound, and forming a substantially inert particle in the treated soil, the substantially inert particle including the blend and the heavy metals.

Abstract: An horticultural blend is disclosed. The horticultural blend includes coal refuse and slag blended with at least a portion of the coal refuse. The coal refuse has a particle size, the particle size corresponding with all material in the coal refuse having a maximum dimension of less than about 2 inches and at least about 25% of the material in the coal refuse being capable of passing through a standard number 4 sieve. The horticultural blend has a pH within a range of about 3.5 and about 10 and the horticultural blend facilitates growth of vegetation when applied to a coal refuse pile at a thickness of less than about 2 feet.

Abstract: The present disclosure describes a method of treating soil and a method of sequestering heavy metals in soil. The method of treating soil includes applying a blend to the soil to form treated soil, the blend including a slag by-product having a soluble compound. The soluble compound includes silicon. The method of sequestering heavy metals includes applying a blend to soil to form treated soil, the blend including a slag by-product having a soluble compound, and forming a substantially inert particle in the treated soil, the substantially inert particle including the blend and the heavy metals.

Abstract: Embodiments of the invention provide a slag manufactured aggregate suitable for inclusion in one or more of concrete, precast concrete, cellular concrete, or precast cellular concrete. Concretes, precast concretes, cellular concretes, and precast cellular concretes comprising the slag manufactured aggregate are also included in embodiments of the invention. Methods of making the foregoing aggregates and concretes are also included herein.

Abstract: Embodiments of the invention provide a slag manufactured aggregate suitable for inclusion in one or more of concrete, precast concrete, cellular concrete, or precast cellular concrete. Concretes, precast concretes, cellular concretes, and precast cellular concretes comprising the slag manufactured aggregate are also included in embodiments of the invention. Methods of making the foregoing aggregates and concretes are also included herein.