Cracks and pores - Their roles in the transmission of water confined in cementitious materials
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Cracks and pores - Their roles in the transmission of water confined in cementitious materials. / Bordallo, H. N.; Aldridge, L. P.; Wuttke, J.; Fernando, K.; Bertram, W. K.; Pardo, L. C.
In: European Physical Journal: Special Topics, Vol. 189, No. 1, 01.10.2010, p. 197-203.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Cracks and pores - Their roles in the transmission of water confined in cementitious materials
AU - Bordallo, H. N.
AU - Aldridge, L. P.
AU - Wuttke, J.
AU - Fernando, K.
AU - Bertram, W. K.
AU - Pardo, L. C.
PY - 2010/10/1
Y1 - 2010/10/1
N2 - Cement paste is formed through a process called hydration by combining water with a cementitious material. Concrete, the worlds most versatile and most widely used material, can then be obtained when aggregates (sand, gravel, crushed stone) are added to the paste. The quality of hardened concrete is greatly influenced by the water confined in the cementitious materials and how it is transmitted through cracks and pores. Here we demonstrate that the water transport in cracks and capillary pores of hardened cement pastes can be approximately modeled by simple equations. Our findings highlight the significance of arresting the development of cracks in cementitious materials used in repository barriers. We also show that neutron scattering is an advantageous technique for understanding how water transmission is effected by gel pore structures. Defining measurable differences in gel pores may hold a key to prediction of the reduction of water transport through cement barriers.
AB - Cement paste is formed through a process called hydration by combining water with a cementitious material. Concrete, the worlds most versatile and most widely used material, can then be obtained when aggregates (sand, gravel, crushed stone) are added to the paste. The quality of hardened concrete is greatly influenced by the water confined in the cementitious materials and how it is transmitted through cracks and pores. Here we demonstrate that the water transport in cracks and capillary pores of hardened cement pastes can be approximately modeled by simple equations. Our findings highlight the significance of arresting the development of cracks in cementitious materials used in repository barriers. We also show that neutron scattering is an advantageous technique for understanding how water transmission is effected by gel pore structures. Defining measurable differences in gel pores may hold a key to prediction of the reduction of water transport through cement barriers.
UR - http://www.scopus.com/inward/record.url?scp=78449258064&partnerID=8YFLogxK
U2 - 10.1140/epjst/e2010-01323-y
DO - 10.1140/epjst/e2010-01323-y
M3 - Journal article
AN - SCOPUS:78449258064
VL - 189
SP - 197
EP - 203
JO - European Physical Journal. Special Topics
JF - European Physical Journal. Special Topics
SN - 1951-6355
IS - 1
ER -
ID: 199167848