CHARACTERIZATION OF MORTAR WITH PENNISETUM PURPUREUM ASHES AS CEMENT REPLACEMENT MATERIAL

In this study, the properties of mortar such as standard consistency, setting time, compressive strength, and water absorption rate were investigated. The cement was replaced with Pennisetum purpureum ashes (PPA) in different particle sizes dosages. PPA produced greyish-white ash total reactive oxides ranging from 37% to 41.1%. grass (PPG) burned a controlled process at 350 °C for first 3 hours 600 another heating 10 °C/min. Then, PPG ground three grinding durations (1, 3, 6 hours) producing 10.58 µm, 10.25 9.30 respectively. physical, chemical, microstructural evaluated through several tests; size analysis, X-ray diffraction loss on ignition, chemical composition. Results indicated that is more suitable use filling material substitute than pozzolanic its are less 50%. 15% 6H-PPA 28 days found be optimum replacement dosage time it achieved highest strength lower among all samples 7 days. ABSTRAK: Kajian ini berkenaan sifat seperti konsistensi standard, masa penyediaan, kekuatan menyeluruh, dan kadar penyerapan air. Simen ditukar dengan abu dalam saiz partikel sukatan berbeza. pula dihasilkan melalui habuk putih-kekelabuan reaktif oksida julat purata ke Rumput dibakar proses kawalan pada selama jam pertama berikutnya pemanasan Kemudian, dikisar tiga tempoh kisaran berbeza jam) menghasilkan masing-masing. Fizikal, larutan kimia struktur mikro telah dikaji pelbagai ujian; analisis partikel, pembelauan X-ray, kehilangan semasa penyalaan kandungan kimia. Dapatan kajian menunjukkan adalah lebih sesuai digunakan sebagai pengisian ganti kepada simen berbanding pozzolanik kerana kurang daripada maksimum hari, didapati dos pengganti bersama simen, menyeluruh paling tinggi air antara semua sampel hari.