High Temperature Resistance of Alkali-Activated Slag- and Portland Cement-Based Reactive Powder Concrete

2012 ◽  
Vol 109 (4) ◽  
Keyword(s):  
High Temperature ◽  
Portland Cement ◽  
Reactive Powder Concrete ◽  
Temperature Resistance ◽  
Alkali Activated Slag ◽  
High Temperature Resistance ◽  
Activated Slag ◽  
Reactive Powder ◽  
Alkali Activated

Strength and Resistance of Alkali-Activated Slag Concrete to High Temperature

2012 ◽  
Vol 193-194 ◽  
pp. 431-434 ◽  
Author(s):  
Mao Chieh Chi ◽  
Ran Huang ◽  
Wei Hsin Lu
Keyword(s):  
Compressive Strength ◽  
High Temperature ◽  
Relative Humidity ◽  
Superior Performance ◽  
Liquid Sodium ◽  
Temperature Resistance ◽  
Alkali Activated Slag ◽  
High Temperature Resistance ◽  
Activated Slag ◽  
Alkali Activated

This study presents an investigation into high-temperature resistance of alkali-activated slag concrete (AASC). Sodium oxide (Na2O) concentrations of 4%, 5% and 6% of slag weight and liquid sodium silicate (SiO2) with modulus ratio of 0.8 ( mass ratio of SiO2 to Na2O ) were used as activators to activate granulated blast furnace slag (GBFS). All cylindrical specimens with the same binder content and liquid/binder ratio of 0.5 were cast and cured in the air, under the saturated limewater and in a curing room at relative humidity of 80% RH and temperature of 60 °C, respectively. Test results demonstrate that the high-temperature resistance of AASC decreased with an increase of temperature. The compressive strength and high-temperature resistance of AASC improved with an increase dosage of Na2O and AASC cured at relative humidity of 80% RH and temperature of 60 °C has the superior performance, followed the AASC by air curing and saturated limewater curing. The higher compressive strength and superior high-temperature resistance have been obtained in AASC than comparable OPC.

Effect of Cu-Zn coated steel fibers on high temperature resistance of reactive powder concrete

2019 ◽  
Vol 117 ◽  
pp. 45-57 ◽  
Author(s):  
Lenka Scheinherrová ◽  
Eva Vejmelková ◽  
Martin Keppert ◽  
Petr Bezdička ◽  
Magdaléna Doleželová ◽  
...  
Keyword(s):  
High Temperature ◽  
Steel Fibers ◽  
Reactive Powder Concrete ◽  
Coated Steel ◽  
Temperature Resistance ◽  
High Temperature Resistance ◽  
Reactive Powder
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