Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 44-54 |
| Number of pages | 11 |
| Journal | Construction and Building Materials |
| Volume | 180 |
| Early online date | 2 Jun 2018 |
| DOIs | |
| Publication status | Published - 20 Aug 2018 |
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Keywords
- microbially induced carbonate precipitation
- marble restoration
- X-ray CT
- micro-continuum flow modelling
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'Microbial mortar'- restoration of degraded marble structures with microbially induced carbonate precipitation. / Minto, James M.; Tan, Qian; Lunn, Rebecca J.; El Mountassir, Grainne; Guo, Hongxian; Cheng, Xiaohui.
In: Construction and Building Materials, Vol. 180, 20.08.2018, p. 44-54.Research output: Contribution to journal › Article
TY - JOUR
T1 - 'Microbial mortar'- restoration of degraded marble structures with microbially induced carbonate precipitation
AU - Minto, James M.
AU - Tan, Qian
AU - Lunn, Rebecca J.
AU - El Mountassir, Grainne
AU - Guo, Hongxian
AU - Cheng, Xiaohui
PY - 2018/8/20
Y1 - 2018/8/20
N2 - To evaluate a restoration strategy for highly degraded marble structures, microbially induced carbonate precipitation (MICP) has been employed to reduce porosity and permeability in a column filled with coarse crushed marble. A 3D X-ray tomography scan revealed the spatial variation in porosity throughout the column and tracer breakthrough curves, recorded at intervals during treatment, enabled derivation of core-scale fluid transport properties and their alteration by precipitating carbonate. Micro-continuum scale flow modelling based on the X-ray data indicated that treatment led to changes in the pore network structure with flow increasingly focused into a smaller number of faster flowing open channels.
AB - To evaluate a restoration strategy for highly degraded marble structures, microbially induced carbonate precipitation (MICP) has been employed to reduce porosity and permeability in a column filled with coarse crushed marble. A 3D X-ray tomography scan revealed the spatial variation in porosity throughout the column and tracer breakthrough curves, recorded at intervals during treatment, enabled derivation of core-scale fluid transport properties and their alteration by precipitating carbonate. Micro-continuum scale flow modelling based on the X-ray data indicated that treatment led to changes in the pore network structure with flow increasingly focused into a smaller number of faster flowing open channels.
KW - microbially induced carbonate precipitation
KW - marble restoration
KW - X-ray CT
KW - micro-continuum flow modelling
UR - https://www.sciencedirect.com/journal/construction-and-building-materials
U2 - 10.1016/j.conbuildmat.2018.05.200
DO - 10.1016/j.conbuildmat.2018.05.200
M3 - Article
VL - 180
SP - 44
EP - 54
JO - Construction and Building Materials
JF - Construction and Building Materials
SN - 0950-0618
ER -