Studi Kuat Tekan Paving Block dari Campuran Tanah, Semen, dan Abu Sekam Padi Menggunakan alat Pemadat Modifikasi

Abstract

One of means transportation wich already familiar is paving block. Paving blocks made of a
mixture of portland cement or adhesive material like hydrolysis, water, and aggregates with or
without other ingredients. However, the use of the material is made into high production rates.
Therefore, in this study the process of manufacture of paving blocks will be tested using alternative
materials such as soil mixtures with rice husk ash additive materials derived from residual
combustion rice straw waste combined with portland cement.
Soil samples were tested in this study are derived from clay Kota Baru, South Lampung are..
Variations in content the mixture used was 0%, 7%, 9%, 11% and 13%, to 14 days curing time
and with burning treatment and without burning paving block samples. Based on the results of
physical testing original soil, USCS soil samples classified as fine-grained soil and included in the
CL group.
The results showed that the manufacture of paving blocks using the soil material with additive
materials such as rice husk ash and cement did not fulfill SNI paving block. However, in general
the addition of the additive materials can increase the physical and mechanical properties of the
soil. It is proved by the increasing value of the optimum moisture content and ductility of paving
blocks. For the compressive strength of paving blocks without and with burning process is best
shown in the addition of a mixture of 9% content.
Keywords: Paving blocks, clay soil, compressive strength