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All Journal Forum Mekanika Construction and Material Journal

Indah Handayasari

Sekolah Tinggi Teknik PLN

Author-ID : 4007903

Civil Engineering, Building, Construction & Architecture Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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PERBANDINGAN KUAT TEKAN PAVING BLOCK RAMAH LINGKUNGAN BERBASIS LIMBAH BOTOL PLASTIK KEMASAN AIR MINERAL DENGAN LIMBAH CANGKANG KERANG DAN LIMBAH BOTOL KACA SEBAGAI BAHAN SUBSTITUSI TERHADAP SEMEN Indah Handayasari; Gita Puspa Artiani
Construction and Material Journal Vol. 1 No. 1 (2019): Construction and Material Journal Vol. 1 No. 1 Maret 2019
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v1i1.1325

Among various kinds of alternative building material products used as cover or hardening of soil surface, Paving blocks are products that are in great demand by consumers. As a covering material and ground surface hardening, Paving blocks are widely used for various purposes, ranging from hardening and beautifying road sidewalks, road hardening, hardening of parking areas, and can even be used in special areas such as container ports and airports. This is because Paving blocks have advantages from other products in terms of shape, size, color and style. In addition, Paving blocks can be combined with other cover materials. Considering the use of Paving blocks that are quite extensive, it is necessary to have alternative substitute materials that can reduce the use of natural materials due to increased physical infrastructure development but are environmentally friendly. One of the eco-friendly Paving block alternatives is by utilizing plastic bottle waste packaging as mineral water as sand substitution material as well as green seashell waste and glass bottle waste as cement substitution material in making Paving blocks. In this study samples were made by comparing the composition of plastic bottle waste packaging of mineral water, seashell waste and glass bottle waste with 0%, 5%, 10%, 15% and 20% substitution treatment of the dry weight of Paving blocks. The test results showed that the optimum mixture variation was found in a mixture with a variation of 10% of plastic bottle waste packaging of mineral water + 10% of seashell waste with a compressive strength of 12.8 MPa and a percentage of water absorption at 28 days of 2.63%. Where the results of the variations in Paving blocks are categorized into quality C which can be used for pedestrians.Keywords : Paving Blocks, Waste, Compressive Strength.

ANALISIS KEAMANAN STRUKTUR BENDUNGAN DAN UNDERGROUND POWER HOUSE PLTA CIRATA JAWA BARAT Indah Handayasari; Irma Sepriyanna; Nanda Yogi Setiyanto
FORUM MEKANIKA Vol 6 No 1 (2017): JURNAL FORUM MEKANIKA
Publisher : Sekolah Tinggi Teknik - PLN

PT PJB BPWC as the manager of important buildings in the Cirata hydro power plant such as dams, dam control centers, spillway buildings, power houses, hillbones and others, in its operation requires monitoring to know the changes and behavior of the monitored buildings. Monitoring is done by observing certain locations regularly and continuously through the aid of tools / instruments or visually. PLTA Cirata installed about 20 types of instrumentation in the dam and underground power house which is used to monitor the security level of Cirata hydropower building structure. Monitoring and maintenance activities are intended to identify early symptoms of movement and changes that could endanger dam structures, other major structures, as well as to things that could threaten the safety of the human psyche so that preventive action can be taken to avoid further damage or loss big. Based on the fifth measurement of seepage instrumentation, inclinometer, piezometer, jointmeter, and crackmeter showed results that are in the range of values below the design boundary so it can be concluded that the safety conditions of the dam structure and underground power house PLTA Cirata are still safe.

STABILISASI TANAH MENGGUNAKAN KAOLIN DAN KAPUR (STUDI KASUS TANAH RESIDUAL DI AREA STT-PLN DURI KOSAMBI JAKARTA BARAT) Indah Handayasari
FORUM MEKANIKA Vol 5 No 2 (2016): JURNAL FORUM MEKANIKA
Publisher : Sekolah Tinggi Teknik - PLN

The topography of West Jakarta area categorized as flat and sloping areas with characteristics of the soil and rock is generally a silty sand, sandy loam, silt loam and sandy silt. Soil conditions in this category have a relatively low carrying capacity and the potential development of a large shrinkage. Carrying capacity of the land itself is one of the parameters on both the construction work under the structure and the upper structure. If the soil does not have a good carrying capacity it will be very dangerous constructions built upon. One improvement to get the soil bearing capacity to be expected that the chemical soil stabilization methods. One chemical soil remediation efforts can be done by adding a siliceous material such as kaolin and limestone soil residual material in West Jakarta area. The research sample was made with kaolin and limestone composition ratio of the residual soil with a treatment that is 0%, 5%, 10%, and 15% of the dry weight of residual soil. Ripening soil mix made for 1 day, 7 days and 14 days. From the test results obtained optimum value on the ground with a mixture of 10% lime and 10% kaolin with a long ripening 14 days. Where the soil with a mixture of 10% lime and 10% kaolin with a long ripening 14 days had a specific gravity is 1.8944, 53.7865% liquid limit, plastic limit 0.4856% 23.3009% plasticity index, shrinkage limit 38.92321% , CBR value of 195.6898%, the cohesion of 0,6767 kg/cm2, and the value of the friction angle of 39°52'44''.

STUDI PENGGUNAAN LIMBAH SERBUK KACA SEBAGAI BAHAN SUBSTITUSI SEMEN PADA PEMBUATAN BATA BETON PEJAL Indah Handayasari; Gita Puspa Artiani; Desi Putri
FORUM MEKANIKA Vol 5 No 1 (2016): JURNAL FORUM MEKANIKA
Publisher : Sekolah Tinggi Teknik - PLN

Waste glass is often the trash unused and potentially damaging to the environment because it is difficultto decompose. Though glass waste has the potential to be used, one of them as a substitute for cement inconcrete solid brick. The purpose of this study was to determine how much influence the addition of glasspowder waste of compressive strength of concrete solid brick. Manufacture of solid concrete brick made fromwaste fine aggregate, cement PC type I, and glass powder from waste glass bottles. Test object of research ismade with a composition ratio of cement, fine aggregate and water with glass powder 4 substitution treatmentwere 0%, 10%, 20%, and 30% by weight of cement. Compressive strength testing is done on day 7,14, 21 and28. From the test results obtained optimum compressive strength value contained in glass powder ratiovariation of 10% of the cement with the compressive strength obtained at 73.33 Kg / cm2 and included intothe Tertiary quality II. This shows the glass powder can be used as an additive in the manufacture of solidconcrete brick so that it can be used as an alternative to environmentally friendly construction materials.

Co-Authors Desi Putri Gita Puspa Artiani Irma Sepriyanna Nanda Yogi Setiyanto

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