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All Journal Media Teknik Sipil Semesta Teknika Teknisia Jurnal Teknik Sipil Jurnal Riset Rekayasa Sipil Prosiding Seminar Nasional Program Pengabdian Masyarakat
Fadillawaty Saleh
Universitas Muhammadiyah Yogyakarta
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Engineering Environmental Science Medicine & Pharmacology Social Sciences

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Journal : Semesta Teknika

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Pengaruh Penambahan Pecahan Kaca Sebagai Bahan Pengganti Agregat Halus dan Penambahan Fiber Optik Terhadap Kuat Tekan Beton Serat Muhammad Nur Ikhsan; Hakas Prayuda; Fadillawaty Saleh
Semesta Teknika Vol 19, No 2 (2016): NOVEMBER 2016
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v19i2.2037

Abstract

Fibre concrete is an innovation of normal concrete to special concrete to be stronger withstands the tensile force. Fibre concrete consists of cement, water, fine aggregate, coarse aggregate and additional fibre materials. The addition of fibre is expected to reduce the segragation and prevent cracks of the concrete. In this research used additional glass fracture with variation of 15%, 20%, 25% to the weight of the fine aggregate as well as additional of optic fibre of 0,15% of the concrete’s weight. Their compressive strength was examined at the age of 28 days. The result is gained by adding 15% of glass fracture 24,94 MPa with modulus of elasticity 23471,8 MPa, addition of 20% gained the result of compressive strength by 25,48 MPa with modulus of elasticity 23724,5 MPa, meanwhile by adding glass fracture 25% gained the result of compressive strength 25,77 MPa with modulus of elasticity 23859,2 Mpa.
Pengaruh Variasi Bahan Tambah Abu Sekam Padi dan Zat Adiktif Bestmittel 0,5% Terhadap Kuat Tekan Beton Mutu Tinggi Yoga Nugraha; Hakas Prayuda; Fadillawaty Saleh
Semesta Teknika Vol 20, No 2 (2017): NOVEMBER 2017
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v20i2.3172

Abstract

Concrete is the mixture of portland cement or hidrolyc cement, fine aggregate, coarse aggregate and water with or without additional mixture to form solid mass. The use of cement makes the concrete price more expensive, so an innovation is needed which to be use natural additive, such as rice husk ash. This research was carried by decreasing the use of cement that was replaced by rice husk ash with the variation 5%, 10%, and 15%, and 0.5% additive material (bestmittel) of the cement. Cylinder samples with the diameter of 15 cm and heigth of 30 cm were tested at the age of 28 days. The result of this research shows that the compresssive strength of the concrete was affected by the additional of rice husk ash (RHA) and additive material (bestmittel), which decrease the compressive strength every additional rice husk ash. The use of rice husk ash and bestmittel on the concrete for 3 variation which were 5 % ; 10% ; and 15% with the additive (bestmittel) 0.5%  obtained compressive strength were 32,23MPa; 31,84MPa and 27,71MPa.
Co-Authors Ahmad Zaki Aristyasari, Yunita Furi Bella Lutfiani Al Zakina Bella Salsabila Candra Agung Wibisono Firhan Mahreza Yunanto Putra Hakas Prayuda Lilis Tiyani Martyana Dwi Cahyati Monika, Fanny Muhammad Nur Ikhsan Sinta Rizky Amalia Taufiq Ilham Maulana Titis Yoga Pratama Yoga Nugraha