Perbandingan Pola Keretakan Bata Sepablock, Bata Ringan, dan H-Brick Berdasarkan Pengujian Laboratorium
DOI:
https://doi.org/10.21009/risenologi.111.07Keywords:
Bata Ringan, H-Brick, SepablockAbstract
This study aims to compare the compressive strength and cracking patterns of three types of bricks: Sepablock, lightweight brick, and H-Brick. The method used was a comparative experimental approach through laboratory compressive testing on 15 cube specimens measuring 5 cm x 5 cm x 5 cm. Crack patterns were observed visually and documented throughout the loading process. The results show that Sepablock, representing dense concrete materials, has the highest average compressive strength of 12.32 MPa, although several specimens exhibited considerable variation in strength values due to differences in internal density and crack propagation mechanisms. The cracking pattern of Sepablock was dominated by controlled vertical and diagonal cracks. Lightweight brick, representing highly porous materials, showed the lowest compressive strength of 1.05 MPa, with failure dominated by crushing and spalling. Meanwhile, H-Brick, as a medium-density material, demonstrated moderate compressive strength of 2.78 MPa with a combination of splitting cracks and localized damage. The study concludes that, in addition to compressive strength, crack patterns are an important parameter in understanding the failure mechanisms of brick materials and should therefore be considered in the evaluation and selection of construction materials.
ABSTRAK
Penelitian ini bertujuan untuk membandingkan kuat tekan dan pola keretakan tiga jenis bata, yaitu Sepablock, bata ringan, dan H-Brick. Metode yang digunakan adalah eksperimen komparatif melalui uji tekan laboratorium terhadap 15 benda uji berbentuk kubus berukuran 5 cm x 5 cm x 5 cm. Pengamatan pola keretakan dilakukan secara visual dan didokumentasikan selama proses pembebanan. Hasil penelitian menunjukkan bahwa Sepablock, sebagai representasi material beton padat, memiliki kuat tekan rata-rata tertinggi sebesar 12,32 MPa, meskipun beberapa sampel menunjukkan variasi nilai yang cukup besar akibat perbedaan kepadatan internal dan mekanisme propagasi retak. Pola keretakan Sepablock didominasi retak vertikal dan diagonal yang relatif terkendali. Bata ringan, yang mewakili material berpori tinggi, memiliki kuat tekan terendah sebesar 1,05 MPa dengan kerusakan dominan berupa crushing dan spalling. Sementara itu, H-Brick, sebagai material dengan kepadatan menengah, menunjukkan kuat tekan sebesar 2,78 MPa dengan pola retak kombinasi antara splitting dan kerusakan lokal. Penelitian ini menyimpulkan bahwa selain kuat tekan, pola keretakan merupakan parameter penting dalam memahami mekanisme kegagalan material bata sehingga perlu dipertimbangkan dalam evaluasi dan pemilihan material konstruksi.
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