PENGARUH KEHALUSAN ABU SEKAM PADI TERHADAP KUAT TEKAN MORTAR BETON

Abstract

Concrete is a construction material that is widely used in structural work in Indonesia
because of the many advantages it provides, including its relatively easy forming material, easy to
form, capable of carrying heavy loads, relatively resistant to high temperatures, and maintenance
costs are small compared to its service life. In addition to the advantages mentioned above, concrete has
one disadvantage, namely its specific gravity is quite high so that the dead load of the structure
becomes very large.
The purpose of this study was to determine the effect of fineness of rice husk ash on the
compressive strength of concrete mortar. Using Sarringan 200 which was then followed by being
flown using a Zona machine, and swearing at Zones 0.1, 2, and 3.
For the highest compressive strength at the age of 28 days, the fineness level at the age of 28
shows the compressive strength behavior of concrete mortar. For the level of fineness of Rice Husk
Ash 0,I,II,III the maximum compressive strength is in zone 3 with a compressive strength value of
38.8 MPa. While for zone I the resulting compressive strength is 36 MPa. For zone II, the value of
the resulting compressive strength is 37.6 MPa. And for zone III the value of the resulting
compressive strength increases by 38.8 MPa