ANALISIS KUAT TEKAN DAN DAYA SERAP AIR PADA BATAKO DENGAN BAHAN TAMBAH LIMBAH GYPSUM

FAUZIAH, NUR AINI (2017) ANALISIS KUAT TEKAN DAN DAYA SERAP AIR PADA BATAKO DENGAN BAHAN TAMBAH LIMBAH GYPSUM. Bachelor thesis, UNIVERSITAS MUHAMMADIYAH PURWOKERTO.

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Abstract

Currently, concrete block becomes very popular as red brick substitute. On the other hand, problem of industrial waste occurs as the consequence of development of technology, inovation as well as alternative experiments. One of the cases was Mandiri Jaya Store; it produced gypsum and resulted wastes around 20 kgs per-day. It potentially resulted environmental polution. The gypsum wastes from Mandiri Jaya Store was phosphogypsum that left over as it was, without any attempt to recycle it. Concrete technology development recently enriched with additives material experiments that positively contribute to the improvement on concrete quality. The objectives of this research was to utilize gypsum waste as concrete additives material for concrete block production. The research used concrete block of 10 cm x 10 cm x 10 cm as the material tester. The gypsum wastes additive divided into four variants based on percentage to cement weight as follow: 10%, 25%, 50%, dan 75%. Each variant made into three samples with comparison of cement weight and fine aggregate weight as 1Pc : 8Ps. Treatment method of the tester material would be done by the 28th day of concrete block age. This research found that the compressive strength of 10% gypsum wastes addition was 2.39 MPa, while the compressive strength of 25% gypsum wastes addition was 2.2 Mpa. Based on quality requirements of SNI (Indonesian National Standard) 03-0349-1989 both variants are categorized as compressive strength IV with average point between 25 – 21 kgs/cm2. While the 50% and 75% gypsum wastes addition was out of strength criteria.

Item Type: Thesis (Bachelor)
Additional Information: Pembimbing: Sulfah Anjarwati, S.T., M.T., dan Teguh Marhendi, S.T., M.T.,
Uncontrolled Keywords: batako; kuat tekan; daya serap; limbah gypsum; concrete block; compressive strength; absorption; gypsum wastes;
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Fakultas Teknik > Teknik Sipil
Depositing User: Riski Wismana
Date Deposited: 03 Oct 2017 03:42
Last Modified: 03 Oct 2017 03:42
URI: http://repository.ump.ac.id/id/eprint/4510

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