Abstract
The aim of this paper is to present compressive strength characteristics under air-dry, sealed and soaked conditions of portland cement mixtures containing a complete range of combinations of dihydrate phosphogypsum (by-product of the phosphate fertilizer industry) and fine aggregate (crushed lime rock). Cylindrical specimens were prepared according to the Modified Proctor procedure (impact compaction). Based on these results, strength comparisons are made for selected constituent proportions in the cases of: 1) consolidation by static compaction; 2) consolidation by high-frequency vibration; 3) site consolidation by vibratory roller compactor; 4) substitution of the dihydrate phosphogypsum with the hemihydrate form (other available by-product). It is shown that consolidation by compaction is particularly advantageous because of the contribution of phosphogypsum to strength development. Laboratory compacted samples of the by-product alone indicate that strengths of over 1,000 psi (6. 89 MPa) can be achieved.
| Original language | English (US) |
|---|---|
| Title of host publication | Publication SP - American Concrete Institute |
| Editors | Steven H. Gebler |
| Publisher | American Concrete Inst |
| Pages | 57-76 |
| Number of pages | 20 |
| State | Published - 1987 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
COMPRESSIVE STRENGTH OF COMPACTED PORTLAND CEMENT-BASED MIXTURES USING PHOSPHOGYPSUM. / Lin, Kuo Ting; Nanni, Antonio; Chang, Wen F.
Publication SP - American Concrete Institute. ed. / Steven H. Gebler. American Concrete Inst, 1987. p. 57-76.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - COMPRESSIVE STRENGTH OF COMPACTED PORTLAND CEMENT-BASED MIXTURES USING PHOSPHOGYPSUM.
AU - Lin, Kuo Ting
AU - Nanni, Antonio
AU - Chang, Wen F.
PY - 1987
Y1 - 1987
N2 - The aim of this paper is to present compressive strength characteristics under air-dry, sealed and soaked conditions of portland cement mixtures containing a complete range of combinations of dihydrate phosphogypsum (by-product of the phosphate fertilizer industry) and fine aggregate (crushed lime rock). Cylindrical specimens were prepared according to the Modified Proctor procedure (impact compaction). Based on these results, strength comparisons are made for selected constituent proportions in the cases of: 1) consolidation by static compaction; 2) consolidation by high-frequency vibration; 3) site consolidation by vibratory roller compactor; 4) substitution of the dihydrate phosphogypsum with the hemihydrate form (other available by-product). It is shown that consolidation by compaction is particularly advantageous because of the contribution of phosphogypsum to strength development. Laboratory compacted samples of the by-product alone indicate that strengths of over 1,000 psi (6. 89 MPa) can be achieved.
AB - The aim of this paper is to present compressive strength characteristics under air-dry, sealed and soaked conditions of portland cement mixtures containing a complete range of combinations of dihydrate phosphogypsum (by-product of the phosphate fertilizer industry) and fine aggregate (crushed lime rock). Cylindrical specimens were prepared according to the Modified Proctor procedure (impact compaction). Based on these results, strength comparisons are made for selected constituent proportions in the cases of: 1) consolidation by static compaction; 2) consolidation by high-frequency vibration; 3) site consolidation by vibratory roller compactor; 4) substitution of the dihydrate phosphogypsum with the hemihydrate form (other available by-product). It is shown that consolidation by compaction is particularly advantageous because of the contribution of phosphogypsum to strength development. Laboratory compacted samples of the by-product alone indicate that strengths of over 1,000 psi (6. 89 MPa) can be achieved.
UR - http://www.scopus.com/inward/record.url?scp=0023593143&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0023593143&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0023593143
SP - 57
EP - 76
BT - Publication SP - American Concrete Institute
A2 - Gebler, Steven H.
PB - American Concrete Inst
ER -