STUDI PENGGUNAAN SEMEN CONCH UNTUK BETON MUTU SEDANG

Abstract

The use of cement is increasing along with the construction of multi-storey buildings, long span bridges and
other buildings that use concrete increasingly increasing. The quality of concrete used is generally medium quality
concrete. Since 2012, the conch cement plant has built 5 factories in Indonesia, three of which are already operating,
namely in Merak Banten, in Harui, South Kalimantan and in Monokwari Papua, the name of cement is conch with the
type of PCC. In this study, the characteristics (physical properties) of cement conch were tested, and followed by making
cylindrical specimens as many as 45, each 15 samples pressed at the age of 7, 14 and age 28 days. The results showed
that the physical properties of cement conch fulfilling the requirements based on SNI, and the results of the compressive
test at the age of 7 days obtained characteristic compressive strength F "C 31.46 Mpa, 14 days 30.76 Mpa and age 28
days 31.14 Mpa, this shows that cement conch is suitable to be used to make medium quality concrete.