Pengaruh Penambahan Abu Dasar (Bottom Ash) Sebagai Bahan Pengganti Pasir Pada Paving Block

Rezky Yusman Efendy
Zulfikar Djauhari
Ermiyati Ermiyati

Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains
Vol 6 (2019): Edisi 1 Januari s/d Juni 2019

This research aims to study the effect of bottom ash as substitute of sand in paving block and to classify each percentage of substitution according to SNI 03-0691-1906 Bata Beton (Paving Block) class specification. The mixture of cement and sand used in this study was 1 : 3. The variation of substitution started from 0%, 10%, 20%, 30%, 40% of sand weight. Tests performed on paving block include compressive strength, water absorption, Na2SO4 immersion test. The results shown by this research that water absorption test at substitution 0%, 10%, 20%, 30%, 40%, were 5.76%, 6%, 5.83%, 7.16%, 7.49%. According to SNI 030691-1906 “Bata Beton” (Paving Block) to water absorption test results, 0%, 10%, 20%, were categorized as B quality paving block, and 30%, 40% were categorized into C quality paving block. The results shown by this research that compressive strength test at substitution 0%, 10%, 20%, 30%, 40% were 31.80 MPa, 27.30 MPa, 29.61 MPa, 19.97 MPa, 16.41MPa. According to SNI 03-0691-1906 Bata Beton (Paving Block) to compressive strength test results, 0%, 10%, 20%, were categorized as B quality paving block, and 30%, 40%, were categorized into C quality paving block. Keywords: Paving Block, Bottom Ash, Water Absorption, Natrium Sulfate, and Compresive Strength