The Influence of Cement Content to Properties of High Strength Anti Washout Concrete (HSAWC)

The high strength of concrete required a lot of cement content to increase its strength but not for the anti washout concrete (AWC) or underwater concrete (UWC). AWC will face another problem which is higher cement content could make the segregation to occur. This segregation process will give bad impact to the strength of the AWC. This research studied on four different cement content to examine: 450 kg/m3, 500 kg/m3, 550 kg/m3 and 600 kg/m3 towards its fresh and hardened properties of concrete. Superplasticizer is used as water reducing agent in the mix proportions to achieve high strength and self-consolidated concrete. Apart from that, there are two types of concrete samples produced, the air sampling concrete and underwater sampling concrete which have the same mix proportion. The overall results show a good correlation between the cement content in the mix and the strength of the air sampling concrete achieved. However, anti washout concrete having issues which is segregation. This segregation had affected the strength of the concrete. In conclusion, Anti washout concrete shows that optimal cement content without any viscocity modifying agent (VMA) is at 550 kg/m3