Abstract
In this research, the particle size distribution (PSD) of different components in inter-ground Portland limestone cement (PLC) and limestone-slag cement (PLC-S) was characterization by using an electron microscopy approach. Firstly, the 2D PSD of limestone, slag, and Portland cement (OPC) was determined by means of image analysis. Based on the 2D data and using a discrete stereology, the 3D size distribution was reconstructed. Finally, the PSD of inter-ground mixtures was assessed by using a compressible packing model. The results showed that the addition of limestone in cement makes the OPC component coarser and distribution broader; meanwhile, the limestone particles were found to be finer than the OPC particles. The addition of both limestone and slag (PLC-S) were found to further broaden the PSD of OPC component and limestone component with the mean size of particles increased in the following order (limestone < slag < OPC). Among the tested samples, the packing density of OPC was the lowest while the packing density of PLC-S was found to be the highest. Based on test results, it can be concluded that the addition of more components during inter-grinding makes the particle size of binder coarser and distribution broader, which in turn, benefits the particle packing and possibly improves the mechanical and durability performance of the cement based composites.
| Original language | English |
|---|---|
| Pages (from-to) | 550-557 |
| Number of pages | 8 |
| Journal | Construction and Building Materials |
| Volume | 147 |
| DOIs | |
| Publication status | Published - Aug 30 2017 |
Fingerprint
Keywords
- BSE
- Compressible packing model
- Limestone
- Particle size distribution
- Slag
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Materials Science(all)
Cite this
3D particle size distribution of inter-ground Portland limestone/slag cement from 2D observations : Characterization and distribution evaluation. / Sun, Hongfang; Fan, Bing; Memon, Shazim Ali; Cen, Zhuo; Gao, Xiaobin; Lin, Bin; Liu, Bing; Li, Dawang; Xing, Feng; Zhang, Xiaogang.
In: Construction and Building Materials, Vol. 147, 30.08.2017, p. 550-557.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - 3D particle size distribution of inter-ground Portland limestone/slag cement from 2D observations
T2 - Characterization and distribution evaluation
AU - Sun, Hongfang
AU - Fan, Bing
AU - Memon, Shazim Ali
AU - Cen, Zhuo
AU - Gao, Xiaobin
AU - Lin, Bin
AU - Liu, Bing
AU - Li, Dawang
AU - Xing, Feng
AU - Zhang, Xiaogang
PY - 2017/8/30
Y1 - 2017/8/30
N2 - In this research, the particle size distribution (PSD) of different components in inter-ground Portland limestone cement (PLC) and limestone-slag cement (PLC-S) was characterization by using an electron microscopy approach. Firstly, the 2D PSD of limestone, slag, and Portland cement (OPC) was determined by means of image analysis. Based on the 2D data and using a discrete stereology, the 3D size distribution was reconstructed. Finally, the PSD of inter-ground mixtures was assessed by using a compressible packing model. The results showed that the addition of limestone in cement makes the OPC component coarser and distribution broader; meanwhile, the limestone particles were found to be finer than the OPC particles. The addition of both limestone and slag (PLC-S) were found to further broaden the PSD of OPC component and limestone component with the mean size of particles increased in the following order (limestone < slag < OPC). Among the tested samples, the packing density of OPC was the lowest while the packing density of PLC-S was found to be the highest. Based on test results, it can be concluded that the addition of more components during inter-grinding makes the particle size of binder coarser and distribution broader, which in turn, benefits the particle packing and possibly improves the mechanical and durability performance of the cement based composites.
AB - In this research, the particle size distribution (PSD) of different components in inter-ground Portland limestone cement (PLC) and limestone-slag cement (PLC-S) was characterization by using an electron microscopy approach. Firstly, the 2D PSD of limestone, slag, and Portland cement (OPC) was determined by means of image analysis. Based on the 2D data and using a discrete stereology, the 3D size distribution was reconstructed. Finally, the PSD of inter-ground mixtures was assessed by using a compressible packing model. The results showed that the addition of limestone in cement makes the OPC component coarser and distribution broader; meanwhile, the limestone particles were found to be finer than the OPC particles. The addition of both limestone and slag (PLC-S) were found to further broaden the PSD of OPC component and limestone component with the mean size of particles increased in the following order (limestone < slag < OPC). Among the tested samples, the packing density of OPC was the lowest while the packing density of PLC-S was found to be the highest. Based on test results, it can be concluded that the addition of more components during inter-grinding makes the particle size of binder coarser and distribution broader, which in turn, benefits the particle packing and possibly improves the mechanical and durability performance of the cement based composites.
KW - BSE
KW - Compressible packing model
KW - Limestone
KW - Particle size distribution
KW - Slag
UR - http://www.scopus.com/inward/record.url?scp=85018767497&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85018767497&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2017.04.070
DO - 10.1016/j.conbuildmat.2017.04.070
M3 - Article
VL - 147
SP - 550
EP - 557
JO - Construction and Building Materials
JF - Construction and Building Materials
SN - 0950-0618
ER -