ANALISIS KEKUATAN PAVING BLOCK MENGGUNAKAN ABU SEKAM PADI DAN LIMBAH PLASTIK

Abstrak

Paving blocks are often used for pavements, yards, and parks. The research uses rice
husk ash as a substitute for cement and plastic waste as a substitute for sand in order to
overcome the waste of rice husk ash and plastic waste that has accumulated and has not been
widely utilized, as well as empowering communities around the waste to be able to take
advantage of the waste. The purpose of this study was to analyze the compressive strength of
paving blocks when the cement and sand were substituted with rice husk ash and plastic waste.
The study was conducted experimentally with two stages of testing. At the initial stage of the
research preliminary testing is carried out which includes testing the physical properties of the
material. The second stage of making test objects using plastic waste 0%, 5%, 10%, 15%, 20%
by weight of sand, and 10% of rice husk ash by weight of cement. Tests were carried out at 7
days, 14 days, and 28 days. Based on the results of the compressive strength test at 28 days of
age, the compressive strength of paving blocks was 20,083 MPa, 26,413 MPa, 30.666 MPa,
22.166 MPa, 16.083 MPa. From the test results obtained the value of the optimum compressive
strength is in the variation of 10% plastic waste and 10% rice husk ash. By SNI 03-0691-1996
the compressive strength value is included in the B quality used for parking lots and becomes
an alternative environmentally friendly construction material.