Abstract
Reinforced super lightweight aggregate (SLA) concrete beams with controlled density of concrete were experimentally load-tested. The test results showed that the shear capacity decreased as the density of concrete decreased. The conversion term from general normal-weight concrete to SLA concrete for calculating the shear capacity was proposed based on the test results, which is expressed as a function of the density of concrete. Furthermore, the shear transfer mechanism of SLA concrete at the surface of a crack was experimentally investigated. It was concluded that the existing formula for calculating the shear transfer capacity of high strength concrete is applicable to SLA concrete by using the same coefficients..