TY - GEN
T1 - Effects of mineral admixtures on compressive strength and rapid chloride permeability of mortars
AU - Yildirim, Hasan
AU - Yilmaz, Onur
AU - Sengul, Ozkan
PY - 2010
Y1 - 2010
N2 - For structures in a marine environment, only sulfate resisting cement is recommended in many specifications in Turkey. However, the performance of this cement against chloride effect is not taken into account. One of the effective ways of minimizing the chloride permeability is to use mineral admixtures in concrete. The main objective of this study was to obtain more information on the effects of mineral admixtures on the rapid chloride permeability of mortars. Two types of cement, a blended cement and a sulfate resisting cement, were used to prepare the mortar mixtures in which the cements were partially replaced by the locally available ground granulated blast furnace slag, fly ash and a natural pozzolan. Mixtures were prepared at two different water/binder ratios. Rapid chloride ion permeability test according to ASTM C1202 was carried out on the mortars. Compressive and flexural strength and capillary water absorption of the specimens were also obtained. The test results confirm that, sulfate resisting cements have low resistance against chloride penetration and the use of pozzolanic materials is a more effective method for increasing the resistance.
AB - For structures in a marine environment, only sulfate resisting cement is recommended in many specifications in Turkey. However, the performance of this cement against chloride effect is not taken into account. One of the effective ways of minimizing the chloride permeability is to use mineral admixtures in concrete. The main objective of this study was to obtain more information on the effects of mineral admixtures on the rapid chloride permeability of mortars. Two types of cement, a blended cement and a sulfate resisting cement, were used to prepare the mortar mixtures in which the cements were partially replaced by the locally available ground granulated blast furnace slag, fly ash and a natural pozzolan. Mixtures were prepared at two different water/binder ratios. Rapid chloride ion permeability test according to ASTM C1202 was carried out on the mortars. Compressive and flexural strength and capillary water absorption of the specimens were also obtained. The test results confirm that, sulfate resisting cements have low resistance against chloride penetration and the use of pozzolanic materials is a more effective method for increasing the resistance.
KW - Blast furnace slag
KW - Compressive strength
KW - Fly Ash
KW - Resistance to chloride ion penetration
KW - Tras
UR - http://www.scopus.com/inward/record.url?scp=85013889315&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85013889315
T3 - 3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference: Think Globally, Build Locally, Proceedings
BT - 3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference
PB - Precast Prestressed Concrete Institute
T2 - 3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference 2010
Y2 - 29 May 2010 through 2 June 2010
ER -
