TY - JOUR
T1 - An Improved Test for Generating Rapid, Accurate, and Reliable Crack Permeability Data for Cementitious Materials
AU - Palin, Damian
AU - Mo, Yu
AU - Wiktor, Virginie
AU - Jonkers, Henk Marius
PY - 2019
Y1 - 2019
N2 - Presented is a modified test for generating crack permeability data for cementitious materials. Single-parallel cracks were generated in mortar specimens. The width of the cracks was analysed through stereomicroscope and computer tomography, and the water permeability of the cracks was determined. Reduction factors and crack flow models were generated, and the reliability of those predictions was assessed. Cracks analysed through stereomicroscope produced reliable crack permeability predictions (r 2 = 0.97–0.98), highlighting the importance of testing multiple (≥ 7) replicates. The modified test produced accurate cracks (i.e., cracks that were within 20 µm of their desired crack width) and was easy to use allowing rapid permeability data (i.e., 10 h for 21 specimens) to be generated. The modified test will be of great use for those wanting to generate rapid, accurate, and reliable crack permeability data for cementitious materials.
AB - Presented is a modified test for generating crack permeability data for cementitious materials. Single-parallel cracks were generated in mortar specimens. The width of the cracks was analysed through stereomicroscope and computer tomography, and the water permeability of the cracks was determined. Reduction factors and crack flow models were generated, and the reliability of those predictions was assessed. Cracks analysed through stereomicroscope produced reliable crack permeability predictions (r 2 = 0.97–0.98), highlighting the importance of testing multiple (≥ 7) replicates. The modified test produced accurate cracks (i.e., cracks that were within 20 µm of their desired crack width) and was easy to use allowing rapid permeability data (i.e., 10 h for 21 specimens) to be generated. The modified test will be of great use for those wanting to generate rapid, accurate, and reliable crack permeability data for cementitious materials.
KW - Cementitious materials
KW - Defined crack widths
KW - Durability
KW - Microcracking
KW - Reliability
KW - Water permeability
UR - http://www.scopus.com/inward/record.url?scp=85064605655&partnerID=8YFLogxK
U2 - 10.1007/s40999-018-0326-8
DO - 10.1007/s40999-018-0326-8
M3 - Article
AN - SCOPUS:85064605655
SN - 1735-0522
VL - 17
SP - 645
EP - 652
JO - International Journal of Civil Engineering
JF - International Journal of Civil Engineering
IS - 5
ER -