TY - JOUR
T1 - Mechanical properties and durability characteristics of SCC incorporating crushed limestone powder
AU - Salami, Babatunde Abiodun
AU - Maslehuddin, Mohammed
AU - Mohammed, Ibrahim
N1 - Publisher Copyright:
© 2014 Taylor & Francis.
PY - 2014/12/17
Y1 - 2014/12/17
N2 - This study assessed the flow criteria, compressive strength, and durability (chloride permeability, corrosion and sulfate resistance) characteristics of self-compacting concrete (SCC) prepared utilizing crushed limestone powder (CLSP). The test samples were prepared by partially replacing CLSP with cement and aggregate such that CLSP/ (CLSP + Cement) and CLSP/(CLSP + aggregate) tagged CLSPCx and CLSPAx, respectively, varied between 10 and 40% at the interval of 10%. The finding showed that CLSP-aggregate replacement contributed better than CLSP-cement substitution in terms of compressive strength, delay in corrosion initiation and propagation rate, better strength retention in sulfate exposure, and microstructural density through microfilling and matrix core reinforcement. The presence of widely distributed hydration products and unhydrated cement core (filler) characterized the CLSP-cement microstructure. CLSPCx in the excess of 20% was detrimental, but the CLSPAx up to 40% was found to contribute positively to the mechanical and durability characteristics of SCC.
AB - This study assessed the flow criteria, compressive strength, and durability (chloride permeability, corrosion and sulfate resistance) characteristics of self-compacting concrete (SCC) prepared utilizing crushed limestone powder (CLSP). The test samples were prepared by partially replacing CLSP with cement and aggregate such that CLSP/ (CLSP + Cement) and CLSP/(CLSP + aggregate) tagged CLSPCx and CLSPAx, respectively, varied between 10 and 40% at the interval of 10%. The finding showed that CLSP-aggregate replacement contributed better than CLSP-cement substitution in terms of compressive strength, delay in corrosion initiation and propagation rate, better strength retention in sulfate exposure, and microstructural density through microfilling and matrix core reinforcement. The presence of widely distributed hydration products and unhydrated cement core (filler) characterized the CLSP-cement microstructure. CLSPCx in the excess of 20% was detrimental, but the CLSPAx up to 40% was found to contribute positively to the mechanical and durability characteristics of SCC.
KW - Crushed limestone powder
KW - Durability characteristics
KW - Flow properties
KW - Mechanical properties
KW - Self-compacting concrete
UR - http://www.scopus.com/inward/record.url?scp=85009282340&partnerID=8YFLogxK
U2 - 10.1080/21650373.2014.990068
DO - 10.1080/21650373.2014.990068
M3 - Article
AN - SCOPUS:85009282340
SN - 2165-0373
VL - 4
SP - 176
EP - 193
JO - Journal of Sustainable Cement-Based Materials
JF - Journal of Sustainable Cement-Based Materials
IS - 3
ER -