Pengaruh Abu Bonggol Jagung sebagai Substitusi Parsial Semen terhadap Kuat Tekan Beton Alir. (The Eeffect of Corn Cob Ash as a Cement Substitute on The Compressive Strength of Flowing Concrete).

Amalia, Taris Rizka (2024) Pengaruh Abu Bonggol Jagung sebagai Substitusi Parsial Semen terhadap Kuat Tekan Beton Alir. (The Eeffect of Corn Cob Ash as a Cement Substitute on The Compressive Strength of Flowing Concrete). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.

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Abstract

The advancement of concrete technology has progres.ud rapidly. '/he we of concrete as a building material in the construction or civil engineering i,u:/11,sJTy has long been renowned in Indonesia. Flowing concrete has become the primary c:ho.ice in COIJSlrUction due to its high worlazbility, facilitating compaction. Th.is research explores the utilization of com cob ash as a partial substituJe for caemt becaus~ of its proten~ch waste content. which can be utilized as a concrete adllli:r:ture. OM crucial component in concrete is silica {Si02), and com cob ash rontailrs a high silica content of 590/4 Silica plays a significant role in concrete by enhancing in compressive nrength. The aim of this study is to investigate the injlwnce of com cob ash atvarious concentrations (09/o, 4%. 5%. !"'Ai. and~) on the COlll.prrsshe strmgth of flowing concrete, with a superplasticize,: proportion of 1.5"- 17te ,uea,dJ jil'ldbtgs reveal that the highest slump flow value was observed in the O'¼ com cob ash lllirlJue at 56. 3 Cll'L A.dditiona/Jy, the highest wet concrete dffl.sity was recorded in the 7" com cob ash mirture at 2391.02 Kglm3. The highest dry concrete density w..u also j,Mnd in the 7¾ com cob ash mmure at 2379.52 Kglm3. Furrhennon!, the highest C011Crele permeability was observed in the 9% com cob ash mixture al J_89" Fuwlly. tM highest compressive strength was achieved in the 7" com cob as.I, mix.tMre a, 35.22 "MPa. These research findings indicate that com cob ash, as a partial crlltfflt substitute, can influence slump flow value, densio,. permeability. aNl compressiW! strength of flowing concrete.

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