| Download | - View final version: Mechanical properties of polymer impregnated cement systems and the effect of moisture on their dimensional stability (PDF, 981 KiB)
|
|---|
| DOI | Resolve DOI: https://doi.org/10.1016/0008-8846(84)90003-6 |
|---|
| Author | Search for: Feldman, R. F.1; Search for: Beaudoin, J. J.1 |
|---|
| Affiliation | - National Research Council of Canada
|
|---|
| Format | Text, Article |
|---|
| Subject | Concrete; impregnation; mechanical properties; cement; dimensional stability; porosity; polymerization; Portland cement - silica mixtures; cement paste; methyl methacrylate monomer (mma); Young's modulus; microhardness; water vapour permeation |
|---|
| Abstract | Cement matrices were prepared by autoclaving portland cement- silica mixtures having various percentages by weight of silica, with water-to-cement ratios of from 0.22 to 0.45. Normal cement paste samples were also made for comparison. Samples were heated to 100 degrees C in vacuum for 24 h before impregnation with methyl methacrylate monomer (MMA), which was then polymerized; impregnation was repeated for complete impregnation. Young's modulus and microhardness were measured as a function of volume fraction of PMMA and results compared with those obtained from similar samples conditioned to 11% RH. Autoclaved impregnated and unimpregnated specimens and room-temperature-cured cement paste specimens at both conditions were exposed to 100% RH and their length changes measured for up to four years. Permeation to water vapour in the impregnated specimens, although decreased, still occurs and impregnation increased long-term expansion on exposure. Expansion on exposure to 100% RH is much larger for D-dried than for 11% RH- conditioned matrices; the latter produced stronger bodies on impregnation. |
|---|
| Publication date | 1984-09-01 |
|---|
| In | |
|---|
| Language | English |
|---|
| Peer reviewed | Yes |
|---|
| Identifier | DBR-P-1256 |
|---|
| NRC number | NRCC 24092
NRC-IRC-3337 |
|---|
| NPARC number | 20375979 |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | 7babbc0e-b24d-4ced-b166-d3d3ff026f2e |
|---|
| Record created | 2012-07-23 |
|---|
| Record modified | 2024-03-22 |
|---|
