ENGINEERING PROPERTIES OF STRUCTURAL LIGHTWEIGHT CONCRETE

The use of lightweight aggregate to reduce concrete densities is a well-established procedure where properties such as increased fire resistance, ease of handling and transportation, or reduced structure dead load is desired. Lightweight concrete with compressive strengths of up to 5,000 psi (34.5 MPa) has been used in commercial construction routinely since the early 1930s. During the last two decades, however, much higher strengths have been specified