Phosphogypsum-based backfill material and preparation method thereof
OwnerJin Huinventor
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Abstract
Disclosed is a phosphogypsum-based backfill material, including the following components in parts by weight: 0.2-0.8 parts of water, 0.01-0.3 parts of a cement, 0.01-0.6 parts of a fly ash, 0-0.6 parts of a stone powder, 0-3 parts of a sand, and 0-5 parts of a stone; and further including the following components in parts by weight: 1 part of any one or a combination of two or more selected from the group consisting of phosphogypsum, a modified phosphogypsum, and a modified phosphogypsum powder, and 0-0.5 parts of any one selected from the group consisting of a basalt fiber, graphite, and a steel fiber.
Claims15
A phosphogypsum-based backfill material, comprising the following raw materials in parts by weight:
- 0.2-0.8 parts of water, 0.01-0.3 parts of a cement, 0.01-0.6 parts of a fly ash, 0-0.6 parts of a stone powder, 0-3 parts of a sand, and 0-5 parts of a stone;
- and
- further comprising the following raw materials in parts by weight:
- one part of any one or a combination of two or more selected from the group consisting of phosphogypsum, a modified phosphogypsum, and a modified phosphogypsum powder, and
- 0-0.5 parts of any one selected from the group consisting of a basalt fiber, graphite, and a steel fiber.
Dependencies are inferred from the claim text.