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All Journal SMARTek JOURNAL TEKNIK SIPIL DAN INFRASTRUKTUR MEKTEK
Shyama Maricar
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Civil Engineering, Building, Construction & Architecture Education

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PENGARUH BAHAN TAMBAH PLASTIMENT-VZ TERHADAP SIFAT BETON Maricar, Shyama; Tatong, Burhan; Hasan, Hajatni
MEKTEK Vol 15, No 1 (2013)
Publisher : MEKTEK

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Abstract

Concrete mixture for structure of the building is expected to according to the quality and specifications desired. With the addition of admixtures materials used for concrete mix, it is necessary to know the type, properties and benefits of admixture produced by various companies. Concrete used In this study were added admixtureof Plastiment-VZ for characters investigated.In this study used two variations of concrete, ie normal concrete and concrete with the addition PlastimentVZ with usage percentage of 0.20%, 0.40% and 0.60% of the weight of the cement used in normal concrete. Cylindrical specimens used for compressive strength testing with a total of 3 pieces for each test.The test results obtained average compressive strength of normal concrete (f'cr) of 27.554 MPa, and for concrete with the addition of-VZ Plastiment of 0.20% obtained an average compressive strength, f'cr = 29.252 MPa, the concrete with the addition of Plastiment-VZ 0.40%, obtained f'cr = 30.951 MPa, whereas the addition of 0.60% for the compressive strength at 28 days obtained at 32.083 MPa.Keywords: Compressive strength, Plastiment-VZ
STUDI PEMANFAATAN PARTIKEL KOMPOS UNTUK PEMBUATAN BATAKO RINGAN Maricar, Shyama; Chauf, Kusnindar Abd.
MEKTEK Vol 13, No 1 (2011)
Publisher : MEKTEK

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One effort to reduce the weight of the building is through the use of light particles in the concrete or mortar.For that particles of compost to be one alternative to be used. Utilization of compost particles directly willreduce the effects of environmental pollution due to garbage. Technically, in some cases the strength ofconcrete is not a determining factor but rather the ductility. Therefore in this study will be reviewed andfurther analyzed the mechanical properties of lightweight concrete that uses compost particles as basicmaterials. Mechanical properties and tensile strength referred to is the compressive strength, with normalmortar as a comparison.Based on the results of the weight of the material obtained gr/cm3 mortar respectively, cement 1.25, sand1.60, 0.31 and compost particles with water content 12%. In this case the effect of adding compost is adecrease in compressive strength of 48.74%, 68.78% decrease in tensile strength and weight reduction of9.85%. In this case the application in the manufacture of bricks is still possible, if based on a minimumcompressive strength requirement. The composition of lightweight concrete blocks with a mixture of 3%addition of compost particles are 2Semen: 6.25 Sand: 4Kompos: 2.5 water, which will produce concreteblocks with a weight of 1.89 gr/cm3 and compressive strength 7.7 MPa
PANEL BETON BERTULANGAN BAMBU SEBAGAI ALTERNATIF BAHAN KONSTRUKSI Maricar, Shyama; Hasan, Hajatni; Chauf, Kusnindar Abd.
MEKTEK Vol 14, No 3 (2012)
Publisher : MEKTEK

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The use of natural materials for construction purposes should be developed. Special reinforced concrete construction, in some cases, the compressive strength is not a determining factor, but rather ductility. On the other hand, bamboo is a natural material has a ductile properties sufficient to be used as reinforcement. For this type of bamboo lear, some properties that are important to note is the compressive strength , σ//= 39.89 MPa,  σ┴ = 5.55 MPa, Shear strength is 7.644 MPa  and tensile strength is 207.523 MPa. In addition, the physical properties of mortar material used is weight of contents of cement is 1.25 gr/cm3, weigtht ofcontent of sand is 1.60 gr/cm3.From the test results it can be concluded that the test samples for concrete mix bamboo panel with division 1 cement and 4 sand did not change significantly so that the maximum load obtained for testing age from 7 days to 21 days also resulted in maximum load that is not much different. Thus the utilization of bamboo reinforced concrete panels for the purpose of the wall can be done, although it still requires further development.
PERENCANAAN PELAT BANGUNAN GEDUNG DENGAN METODE MARCUS Maricar, Shyama
MEKTEK Vol 7, No 3 (2005)
Publisher : MEKTEK

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This paper explained more circumstantial of planning lisp at a building by using Method of Marcus, load and bone volume of the lisp were calculated by using method Marcus. In this method, the flatten load is calculated using tables and the point load is calculated with formula and table.The result shows that by using formula 1,2 MD + 1,6 ML of combination load, the maximum encumbering values were obtained for Mlx, Mly,Mtx, Mty.From the reinforcement calculation, the reinforcement of field in x direction use Ø 12 – 150 mm and for the fulcrum use Ø 12 – 150 mm. In y direction, reinforcement of the field and the fulcrum use Ø 14 – 150 mm. For the convenience, The reinforcement with Ø 14 – 150 mm is used for x and y direction.
Co-Authors Agus Rivani Burhan Tatong Hajatni Hasan HENDRA SETIAWAN Kusnindar Abd. Chauf Martini Martini Nirmalawati Nirmalawati