International Journal of Civil Engineering
IJCE
Engineering & Technology
http://ijce.iust.ac.ir
18
agent2
1735-0522
2383-3874
10.22068/IJCE
en
jalali
1384
6
1
gregorian
2005
9
1
3
3
online
1
fulltext
en
BEHAVIOR OF LOW TO HIGH-STRENGTH LIGHTWEIGHT CONCRETE UNDER TORSION
BEHAVIOR OF LOW TO HIGH-STRENGTH LIGHTWEIGHT CONCRETE UNDER TORSION
Research Paper
Research Paper
Results of an experimental investigation performed to evaluate the effect of various concrete strength levels on behavior of lightweight concrete (LWC) under pure torsion are reported.The principle variable of the testing program was compressive strength of concrete (�'c) which ranged between 6.9 and 81.4 MPa. Ten mixture proportions were utilized for LWC of 1500 to 2050 kg/m3 unit weight. In total, sixty four (thirty two pairs) rectangular specimens with 100x 200 mm cross-section were tested. Ultimate torsion strength of LWC increases as uniaxial compressive strength increases however the increase rate reduces for high levels of concrete strengths. The test results are compared with predictions of elastic and plastic theories for torsion and the ACI Code. The Code underestimates the cracking torque of LWC under pure torsion. A regression equation incorporating test results is higher than the ACI equation prediction by a factor of 1.12.
HIGH,STRENGTH CONCRETE, TORSION STRENGTH, LIGHTWEIGHT AGGREGATE CONCRETE, TEST
182
191
http://ijce.iust.ac.ir/browse.php?a_code=A-10-104-37&slc_lang=en&sid=1
KHALOO R.
`180031947532846005836`

180031947532846005836
Yes
SHARIFIAN M.
`180031947532846005837`

180031947532846005837
No