FRESH PROPERTIES DAN KUAT TEKAN SELF-FIBER COMPACTING CONCRETE (SFCC) DENGAN BAHAN TAMBAH ZEOLITE DAN SERAT NYLON
Abstract
Concrete is one of the commonly used construction materials in infrastructure. Infrastructure development needs to be supported by renewable technology such as self-compacting concrete. Self-compacting concrete is renewable technology concrete that is already widely used in the field with the advantages of being able to shorten the time of work, minimize the cavity in concrete, fill the space on the narrow gaps, and self-compacting. The purpose of this research is to analyze the fresh properties and compressive strength for self-fiber compacting concrete with zeolite and nylon fiber added. Zeolite as a replacement for cement used with contents of 0%, 5%, 10%, and 15% also nylon fiber 1% of the weight cement is added, with the aim to increase the compressive strength from self-fiber compacting concrete. As for the sikament LN is type superplasticizer with the content of 1.5% used to increase workability. The addition of zeolite and nylon fiber against testing fresh properties in concrete has fulfilled a standard set EFNARC (2005). Compressive strength test does do of the concrete age 7, 14, 28 days using cylinder mold. In summary, this results is compressive strength highest on zeolite added 5% and 1% nylon fiber at the age of 28 days, amounted to 34,4 MPa. The addition of zeolite 5% and 1% nylon fiber at the age of 7, 14, and 28 days respectively increased of 14%, 13%, and 4% from normal concrete. While for zeolite addition on the 10% and 15% decrease of compressive strength when compared to normal concrete.