TY - JOUR
T1 - Monitoring compressive strength of concrete by nuclear magnetic resonance, ultrasound, and rebound hammer
AU - Cano-Barrita, P. F.D.J.
AU - Castellanos, F.
AU - Ramírez-Arellanes, S.
AU - Cosmes-López, M. F.
AU - Reyes-Estevez, L. R.
AU - Hernández-Arrazola, S. E.
AU - Ramírez-Ortíz, A. E.
N1 - Publisher Copyright:
Copyright © 2015, American Concrete Institute. All rights reserved
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The relationship between T1 and T2 nuclear magnetic resonance relaxation times and compressive strength of concrete is determined and compared with those obtained using ultrasonic pulse velocity and rebound hammer. Concrete cylinders measuring 150 mm (6 in.) in diameter and 300 mm (12 in.) in length were cast from three concrete mixtures produced by a local precast company and tested to obtain T1 and T2 relaxation times, ultrasonic pulse velocity, rebound number, moisture content, and compressive strength at 1, 3, 7, 14, 28, and 56 days of age. Estimation of the compressive strength from T1 and T2 relaxation times has the same reliability as those produced by the rebound number and the ultrasonic pulse velocity, respectively. The relaxation times measurements in concrete, particularly T2, are an alternative way to obtain information that can be related not only to compressive strength, but also to the pore size distribution and crack width.
AB - The relationship between T1 and T2 nuclear magnetic resonance relaxation times and compressive strength of concrete is determined and compared with those obtained using ultrasonic pulse velocity and rebound hammer. Concrete cylinders measuring 150 mm (6 in.) in diameter and 300 mm (12 in.) in length were cast from three concrete mixtures produced by a local precast company and tested to obtain T1 and T2 relaxation times, ultrasonic pulse velocity, rebound number, moisture content, and compressive strength at 1, 3, 7, 14, 28, and 56 days of age. Estimation of the compressive strength from T1 and T2 relaxation times has the same reliability as those produced by the rebound number and the ultrasonic pulse velocity, respectively. The relaxation times measurements in concrete, particularly T2, are an alternative way to obtain information that can be related not only to compressive strength, but also to the pore size distribution and crack width.
KW - Compressive strength
KW - Crack width
KW - Moisture content
KW - Nuclear magnetic resonance relaxation times
KW - Pore size
KW - Pulse velocity
KW - Rebound hammer
UR - http://www.scopus.com/inward/record.url?scp=84921949350&partnerID=8YFLogxK
U2 - 10.14359/51686984
DO - 10.14359/51686984
M3 - Artículo
SN - 0889-325X
VL - 112
SP - 147
EP - 154
JO - ACI Materials Journal
JF - ACI Materials Journal
IS - 1
ER -