The effect of nonylphenolethoxylate on the density, strength and absorption characteristic of lightweight concrete / Kamarudzaman Sakom

Concrete, so commonly accepted in our buildings, bridges, highways and an infinite variety of other structures, is taken for granted as massive and weighty. Not necessary so. A broad spectrum of light weight concrete has been used successfully in construction industry for many years. For structural applications of lightweight concrete, the density of concrete is often more important than the strength. A decreased density for the same strength level permits a saving in dead load for structural design and foundation. The aim of this project is to study on the effect of Nonylphenolethoxytate as partial raw material use in lightweight concrete on the performance of concrete strength development, density and durability. The experimental programs comprises of 18 different mix proportions; Cement aggregate ratio at 1 : 3. Air entraining agent is introduced with different dosage in the concrete mix. The strength development test is canied out on 150mm cube at 3, 7, and 28 days and water curing is adopted. For the evaluation of absorption, the Initial Surface Absorption Test is adopted. Lastly, dry density of the sample is measured at the age of 28 days.