SELF COMPACTING CONCRETE USING RED TILE WASTE AS FINE AGGREGATE

OCTOBENITA, CREZENSIA ALFIORA DEADEMA DIAS (2017) SELF COMPACTING CONCRETE USING RED TILE WASTE AS FINE AGGREGATE. S1 thesis, UAJY.

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Abstract

SELF COMPACTING CONCRETE USING RED TILE WASTE AS FINE AGGREGATE, Crezensia Alfiora Deadema Dias Octobenita, Student ID 131314883, year 2017, structure specialization, International Civil Engineering Program, Faculty of Engineering, Universitas Atma Jaya Yogyakarta. Self-Compacting Concrete is mixed concrete that able to compact by itself without using a vibrator. Instead, use superplasticizer to help concrete in the selfcompacting process and can reduce the amount of water and increase the workability of the concrete. This research used red tile waste as a substitute fine aggregate. The aim of this research is to determine the effect of red tile waste on self-compacting concrete. The tests that conducted in this research were compressive strength, modulus of elasticity and modulus of rupture. Specimen for compressive strength test are 54 concrete cylinders, the test is done when the concrete has reached age of 7, 14 and 28 days. Specimen for modulus of elasticity test are 18 concrete cylinders, the test is done when the concrete has reached age of 28 days. While, specimen for modulus of rupture test are 18 concrete beams, the test is done when the concrete has reached age of 28 days. Mix design used SNI 03-2834-2000, compressive strength planning of 25 MPa, water cement ratio (wcr) 0.45, percentage of red tile waste substitution are 0%, 10%, 20%, 30%, 40% and 50%, superplasticizer viscocrete-10 used as much as 1.25% of weight of cement. Cylinder sample has diameter 150 mm and height 300 mm, beam sample has dimension (100x100x500) mm. The results showed (1) the average density of self-compacting concrete was 2374.6665 kg/m3. (2) the highest value of compressive strength when the concrete at the age 7, 14 and 28 days occur in concrete with 50% red tile waste proportion were 64.74 MPa, 65.56 MPa and 71.94 MPa, respectively. (3) the highest value of modulus of elasticity when the concrete at the age 28 days occur in concrete with 50% red tile waste proportion was 26856.52 MPa. (4) the highest value of modulus of rupture when the concrete at the age 28 days occur in concrete with 50% red tile waste proportion was 7.07 MPa.

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