PERBANDINGAN MORTAR BERPASIR PANTAI DAN SUNGAI
Abstract: The use of sand
beach as building material is very rarely used because considering the possible
damage toward the other building materials that caused by salt content in it.
This research is aimed to provide an overview comparison of mortar with sand
beach and Brantas River, and also the use of cement type Ordinary Portland
Cement (PC) and Portland Pozzoland Cement (PPC). The result of this research
showed that the average weight of sand beach is 1.7739 ton/m3, the
average of dry density: 2.55, the avarege of SSD density: 2.63, the average of
appearance density: 2.83, the average of absorption: 2.16%. The value of sand
silt in Sendang Biru beach is 1.452%, while for Brantas River is 1.424%. The
best compressive strength of mortar was showed by the mixing of 20% of pp
Sendang Biru and 80% of ps Brantas River, that is 318,479 kg/cm2, or about
28.5% bigger than mortar control (1pc cement: 3ps Brantas) that is 247,706
kg/cm2. Furthermore, the compressive strength of pc mortar cement substituted
by sand beach is decrease to 68%, 25%, and 22%, while for the mixing of pp
Sendang Biru compared with ps Brantas 60%:40%, 80%:20%, and 100%:0%. The
average compressive strength of pc cement mortar is higher than the average
compressive strength of ppc cement mortar in 28 days. The compressive strength
of mortar 1pc: 3 sand in the mix of 100% ps Brantas pc cement is 373.2 kg/cm2.
Furthermore, the compressive strength of mortar subtitued with sand beach 20%,
40%, 60%, 80%, and 100% each is decreased to be 97.4%, 74.5%, 58.2%, 31.5%, and
22.8% from value control.
Penulis: Yusuf Wahyudi
Kode Jurnal: jptsipildd120073
