Browsing SWL-Engineering by Issue Date

Kemampuan Adsorpsi Lempung Alam Modifikasi Dalam Mengikat Cu (Ii) Dari Medium Air

Nurhayati, Nurhayati; Muhdarina, Muhdarina; S., Bahri; Erman, Erman (Seminar UKM-UNRI Ke-6, 2010, 2010-10-05)

PEMILIHAN METODE INTENSITAS HUJAN YANG SESUAI DENGAN KARAKTERISTIK STASIUN PEKANBARU

Lilis Handayani, Yohanna; Hendri, Andy; Suherly, Hadie (2013-04-12)

Intensitas hujan di Daerah Pengaliran Sungai (DPS) dapat dihitung dari hasil pengukuran alat pengukur hujan otomatis. Intensitas hujan juga dapat didekati dengan menggunakan metode Talbot, Sherman dan ishiguro. Besarnya ...

Water Penetrability of Low Calcium Fly Ash Geopolymer Concrete

Olivia, Monita; Nikraz, Hamid (wahyu sari yeni, 2013-06-04)

This paper presents a study on water penetrability properties, namely water absorption, volume of permeable voids, permeability and sorptivity of low calcium fly ash geopolymer concrete. In this research, geopolymer ...

Strength and water penetrability of fly ash geopolymer concrete

Olivia, Monita; Nikraz, Hamid (2013-06-04)

This paper presents a study on the strength development, water absorption and water permeability of low calcium fly ash geopolymer concrete. Geopolymer mixtures with variations of water/binder ratio, aggregate/binder ...

Corrosion Performance of Embedded Steel in Fly Ash Geopolymer Concrete by Impressed Voltage Method

Olivia, Monita; Nikraz, Hamid (2013-06-04)

The present paper covers a study of the corrosion performance of embedded steel in fly ash geopolymer concrete by an accelerated corrosion test set up. Concrete specimens were exposed to a constant impressed voltage of ...

Durability of Low Calcium Fly Ash Geopolymer Concrete in Chloride Solution

Olivia, Monita; Nikraz, Hamid (2013-06-04)

This paper describes a durability study of low calcium fly ash geopolymer concrete under an accelerated wetting drying testing. The main parameters were aggregate content, alkaline/fly ash ratio, ratio of sodium silicate/sodium ...

The influence of micro algae on corrosion of steel in fly ash geopolymer concrete: a preliminary study

Olivia, Monita; Moheimani, Navid; Javaherdashti, Reza; Nikraz, Hamid; Borowitzka, Michael (2013-06-04)

Chloride is not the only main cause of corrosion of reinforced concrete structures in seawater environment. Microorganisms, such as bacteria and microalgae, in the seawater can induce microbiologically influenced corrosion ...

Corrosion of Low Calcium Fly Ash Geopolymer Concrete: a Preliminary Study

Olivia, Monita; Nikraz, Hamid (2013-06-04)

A study of the durability of geopolymer concrete is a step forward in ensuring this material’s technical viability. Geopolymer concrete from low calcium fly ash was reported to have a good resistance in aggressive environments, ...

On the impact of algae on accelerating the biodeterioration/biocorrosion of reinforced concrete: a mechanistic review

Javaherdashti, Reza; Nikraz, Hamid; Borowitzka, Michael; Moheimani, Navid; Olivia, Monita (2013-06-04)

In this paper, the complexities involved in both microbiologically influenced corrosion and deterioration of reinforced concrete structures by algae are explained. In this regards, the five possible corrosion/deterioration ...

Pengaruh Konsentrasi Nitrogen terhadap Pengomposan Serat Buah Sawit dengan Teknologi Biofertilizer

Ahmad, Adrianto; Khairat; Mailinda, Tirta (2014-01-21)

Production of CPO in Indonesia continues increase with increasing amount of palm oil’s production. Along with increased production of palm oil, the amount of waste generated has also increased, one of them is oil palm ...

Pengaruh Konsentrasi Fosfor terhadap Biokonversi Reject Nanas menjadi Bioetanol

Khairat; Ahmad, Adrianto; Aini, Sarifah (2014-01-21)

Needs of bioethanol in Indonesia in 2011 reached 1.4 million kilo liters / year, while national production of bioethanol at present about 240 million liters / year. This suggests that ethanol demand in Indonesia is ...

PENGARUH WAKTU ANALISIS TERHADAP NILAI INDEKS SCALE DAN EVALUASI KECENDERUNGAN TERBENTUKNYA SCALE PADA PIPA PRODUKSI DI LAPANGAN MINYAK DURI RIAU