scholarly journals STUDY ON STRESS AND STRAIN OF MORTAR AND COARSE AGGREGATE IN HIGH STRENGTH CONCRETE UNDER COMPRESSIVE STRESS CONDITION

2007 ◽  
Vol 72 (616) ◽  
pp. 25-32
Author(s):  
Satoshi WATANABE ◽  
Yoshihiro MASUDA ◽  
Hiroshi JINNAI ◽  
Shusuke KUROIWA ◽  
Satoru NAMIKI
Keyword(s):  
Compressive Stress ◽  
High Strength Concrete ◽  
Stress Condition ◽  
Coarse Aggregate ◽  
High Strength ◽  
Stress And Strain ◽  
Strength Concrete

Estimation of Compressive Strength of Recycled Aggregate High Strength Concrete Using Ultrasonic Pulse Velocity

2014 ◽  
Vol 605 ◽  
pp. 147-150
Author(s):  
Seong Uk Hong ◽  
Seung Hun Kim ◽  
Yong Taeg Lee
Keyword(s):  
Compressive Strength ◽  
High Strength Concrete ◽  
Coarse Aggregate ◽  
High Strength ◽  
Ultrasonic Pulse Velocity ◽  
Ultrasonic Pulse ◽  
Pulse Velocity ◽  
Recycled Aggregate ◽  
Strength Concrete ◽  
Recycled Coarse Aggregate

This study used the ultrasonic pulse velocity method, one of the non-destructive test methods that does not damage the building for maintenance of to-be-constructed concrete structures using recycled aggregates in order to estimate the compressive strength of high strength concrete structure using recycled coarse aggregate and provide elementary resources for technological establishment of ultrasonic pulse velocity method. 200 test pieces of high strength concrete 40, 50MPa using recycled coarse aggregate were manufactured by replacement rates (0, 30, 50, 100%) and age (1, 7, 28, 180days), and air curing was executed to measure compressive strength and wave velocity. As the result of compressive strength measurement, the one with age of 180day and design strength of 40MPa was 43.69MPa, recycled coarse aggregate replacement rate of 30% 50% 100% were 42.82, 41.22, 37.35MPa, and 50MPa was 52.50MPa, recycled coarse aggregate replacement rate of 30% 50% 100% were 49.02, 46.66, 45.30MPa, and while it could be seen that the test piece substituted with recycled aggregate was found to have lower strength than the test piece with natural aggregate only, but it still reached the design strength to a degree. The correlation of compressive strength and ultrasonic pulse velocity was found and regression analysis was conducted. The estimation formula for compressive strength of high strength concrete using recycled coarse aggregate was found to be Fc=0.069Vp4.05, R2=0.66

The Possibility of Using Boiler Slag as Coarse Aggregate in High Strength Concrete

2017 ◽  
Vol 22 (5) ◽  
pp. 1816-1826 ◽  
Author(s):  
Piotr Smarzewski ◽  
Danuta Barnat-Hunek ◽  
Walery Jezierski
Keyword(s):  
High Strength Concrete ◽  
Coarse Aggregate ◽  
High Strength ◽  
Strength Concrete
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