scholarly journals RANCANG BANGUN MODULAR FLOATING PONTOON FERROCEMENT SEBAGAI ALAT APUNG MULTIGUNA

ROTASI ◽  
2014 ◽  
Vol 16 (4) ◽  
pp. 1
Author(s):  
Aulia Windyandari ◽  
Ahmad Fauzan Zakki
Keyword(s):  
Mechanical Strength ◽  
High Density Polyethylene ◽  
Raw Materials ◽  
Construction Material ◽  
High Density ◽  
Building Construction ◽  
Advantages And Disadvantages ◽  
Alternative Material ◽  
Principal Dimension

Modular floating pontoon is a floating device commonly used as civil and marine construction. Pontoon is usually made of steel and high-density polyethylene (HDPE). Although the steel and HDPE has its own advantages and disadvantages in terms of economic, strength, and capacity. However the study of alternative raw materials for modular floating pontoon construction as multipurpose floating equipment is needed. Ferrocement which is familiar in the used for building construction material is an alternative material. Since the material is easy to find and it is such a versatile material that can be mass produced and has the mechanical strength that is simillar to steel and other materials. Following that condition the research is focused on the application of ferrocement technology for modular floating floating pontoon. The results show that the principal dimension of modular floating pontoon are length 80 cm, width 80 cm, height 75 cm, with the lightweight draft of pontoons is 30 cm. The material proportions for the modular floating pontoon are sand 48.2%, cement 34.5% and water 17.3%. Modular floating pontoon series consists of four Pontoons Square compiled with interlink (hook) so that the total of the package pontoon has a 160 cm long, 160 cm wide and 75 cm high.

Evaluation of mechanical performance and water absorption properties of modified sugarcane bagasse high-density polyethylene plastic bag green composites

2021 ◽  
pp. 096739112110490
Author(s):  
Ruey Shan Chen ◽  
Yao Hsing Chai ◽  
Ezutah Udoncy Olugu ◽  
Mohd Nazry Salleh ◽  
Sahrim Ahmad
Keyword(s):  
Mechanical Strength ◽  
Water Absorption ◽  
Sugarcane Bagasse ◽  
High Density Polyethylene ◽  
High Density ◽  
Potential Candidate ◽  
Green Composites ◽  
Absorption Properties ◽  
Fiber Modification ◽  
Blending Method

Enormous amounts of plastic wastes are generated worldwide and the approaches related to plastic recycling or reusing have become the research focus in the field of composite materials. In this study, green composites were prepared via melt-blending method using high-density polyethylene (HDPE) sourced from plastic bags as a matrix and sugarcane bagasse (SCB) fiber as reinforcing filler. The effects of fiber loading (5, 10 and 15 wt%) and fiber modification on the mechanical and dimensional stability (weight gain by water absorption) properties of the green composites were investigated. Results showed that the inclusion of SCB fiber into recycled HDPE matrix increased the composite stiffness but decreased the mechanical strength and resistance to water absorption. With the fiber modification through alkali treatment, the mechanical strength was remarkably improved, and the modulus and water absorption of the composites were found to be reduced. From the finding, it can be concluded that the prepared green composites free of coupling agent could add value to the plastic and agricultural wastes, and serve a potential candidate to replace some conventional petroleum-based composites.

Enhanced strength and foamability of high-density polyethylene prepared by pressure-induced flow and low-temperature crosslinking

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34422-34427 ◽  
Author(s):  
Tairong Kuang ◽  
Feng Chen ◽  
Dajiong Fu ◽  
Lingqian Chang ◽  
Xiangfang Peng ◽  
...  
Keyword(s):  
Low Temperature ◽  
Mechanical Strength ◽  
High Density Polyethylene ◽  
High Performance ◽  
High Density ◽  
Induced Flow

We report a high-performance high-density polyethylene (HDPE) with significantly enhanced mechanical strength by means of pressure-induced flow (PIF) and low-temperature crosslinking treatment.

scholarly journals Engineering Performance of Concrete Incorporated with Recycled High-Density Polyethylene (HDPE)—A Systematic Review

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1885
Author(s):  
Sonali Abeysinghe ◽  
Chamila Gunasekara ◽  
Chaminda Bandara ◽  
Kate Nguyen ◽  
Ranjith Dissanayake ◽  
...  
Keyword(s):  
Tensile Strength ◽  
High Density Polyethylene ◽  
Construction Material ◽  
High Density ◽  
Splitting Tensile Strength ◽  
Fiber Reinforced Concrete ◽  
Fine Aggregate ◽  
Aggregate Concrete ◽  
Sustainable Solutions ◽  
Concrete Matrix

Incorporating recycled plastic waste in concrete manufacturing is one of the most ecologically and economically sustainable solutions for the rapid trends of annual plastic disposal and natural resource depletion worldwide. This paper comprehensively reviews the literature on engineering performance of recycled high-density polyethylene (HDPE) incorporated in concrete in the forms of aggregates or fiber or cementitious material. Optimum 28-days’ compressive and flexural strength of HDPE fine aggregate concrete is observed at HDPE-10 and splitting tensile strength at HDPE-5 whereas for HDPE coarse aggregate concrete, within the range of 10% to 15% of HDPE incorporation and at HDPE-15, respectively. Similarly, 28-days’ flexural and splitting tensile strength of HDPE fiber reinforced concrete is increased to an optimum of 4.9 MPa at HDPE-3 and 4.4 MPa at HDPE-3.5, respectively, and higher than the standard/plain concrete matrix (HDPE-0) in all HDPE inclusion levels. Hydrophobicity, smooth surface texture and non-reactivity of HDPE has resulted in weaker bonds between concrete matrix and HDPE and thereby reducing both mechanical and durability performances of HDPE concrete with the increase of HDPE. Overall, this is the first ever review to present and analyze the current state of the mechanical and durability performance of recycled HDPE as a sustainable construction material, hence, advancing the research into better performance and successful applications of HDPE concrete.

scholarly journals Pengaruh Penambahan Serat Limbah Plastik HDPE terhadap Kuat Tekan pada Mortar

2021 ◽  
Vol 1 (2) ◽  
pp. 60-64
Author(s):  
Yoga Aprianto Harsoyo ◽  
Muhammad Rifqi Fauzi
Keyword(s):  
Compressive Strength ◽  
High Density Polyethylene ◽  
Construction Material ◽  
Plastic Waste ◽  
High Density ◽  
Road Infrastructure ◽  
Plastic Type ◽  
The World

Mortar merupakan bahan konstruksi yang umum digunakan pada gedung maupun jalan. Beberapa konstruksi yang menggunakan mortar antara lain Lane Concrete (LC), spesi, perekat bata ringan, plester dinding, acian instan, pemasangan kramik, dan lain-lain. Serat limbah plastik HDPE (High Density Polyethylene) pada penelitian ini adalah bahan campuran sebagai pengikat dan pengganti semen. Plastik HDPE merupakan salah satu jenis plastik yang jika dilihat secara visual tergolong pekat, dimana pemakaian jenis plastik ini biasanya digunakan  untuk botol minuman. Jenis plastik HDPE mudah untuk di daur ulang. Penelitian ini diharapkan dapat mengurangi jumlah limbah plastik yang ada di Indonesia. Tujuan penelitian ini adalah untuk mengkaji pengaruh pencampuran serat limbah plastik HDPE dengan variasi terhadap kuat tekan dan berat mortar. Serat yang digunakan sebanyak 0%, 2%, 4%, dan 6% terhadap berat semennya. Penelitian ini dilakukan untuk memperoleh kuat tekan mortar pada umur 7 hari dan 28 hari dengan menggunakan benda uji kubus dengan dimensi 15 cm × 15 cm × 15 cm. Hasil pengujian menunjukkan bahwa kuat tekan tertinggi untuk mortar serat pada variasi serat 2% di umur 28 hari yaitu sebesar 14,47 MPa. Kuat tekan mortar pada umur 7 dan 28 hari berturut-turut mengalami kenaikan sekitar 11%. Sedangkan pada penambahan serat, kuat tekan mortar mengalami penurunan seiring dengan semakin banyaknya campuran serat. Mortar serat mengalami penurunan berat dari 7696 gram menjadi 7640 gram, 7422 gram, dan 7280 gram, masing-masing untuk 2%, 4%, dan 6% serat pada umur 28 hari. Mortar is a construction material commonly used in building and road infrastructure. Some constructions that use mortar include Lane Concrete (LC), species, light brick adhesives, wall plaster, mechanical installation, and others. HDPE plastic waste fiber (High density polyethylene) in this study is a mixture of materials as binders and cement substitutes. HDPE plastic is one type of plastic that when viewed visually is classified as concentrated, where the use of this type of plastic is usually used for beverage bottles. The HDPE plastic type is easy to recycle. In 2015, global plastic waste in the world was recorded at 2.5 billion tons per year, so this research is expected to reduce the amount of plastic waste in Indonesia. The purpose of this study was to analyze the  effect of mixing HDPE plastic waste fibers on compressive strength and mortar weight. This HDPE variations of 0%, 2%, 4%, and 6% is used from the weight of the cement. This study was carried out to obtain the compressive strength at the ages of 7 days and 28 days using cube specimens with dimensions of 15 cm × 15 cm × 15 cm. Based on the results of the test, the highest compressive strength for mortar at of 2% fiber variation at 28 days is 14.47 MPa. The compressive strength of mortar at the age of 7 and 28 consecutive days increased by 11%. While the addition of fibers, compressive strength of mortar decreases with the increasing number of fiber mixtures. Fiber mortar decreased in weight from 7696 grams to 7640 grams, 7422 grams, and 7280 grams, for fiber of 2%, 4%, and 6% respectively. Mortar is a construction material commonly used in building and road infrastructure. Some constructions that use mortar include Lane Concrete (LC), species, light brick adhesives, wall plaster, mechanical installation, and others. HDPE plastic waste fiber (High density polyethylene) in this study is a mixture of materials as binders and cement substitutes. HDPE plastic is one type of plastic that when viewed visually is classified as concentrated, where the use of this type of plastic is usually used for beverage bottles. The HDPE plastic type is easy to recycle. In 2015, global plastic waste in the world was recorded at 2.5 billion tons per year, so this research is expected to reduce the amount of plastic waste in Indonesia. The purpose of this study was to analyze the  effect of mixing HDPE plastic waste fibers on compressive strength and mortar weight. This HDPE variations of 0%, 2%, 4%, and 6% is used from the weight of the cement. This study was carried out to obtain the compressive strength at the ages of 7 days and 28 days using cube specimens with dimensions of 15 cm × 15 cm × 15 cm. Based on the results of the test, the highest compressive strength for mortar at of 2% fiber variation at 28 days is 14.47 MPa. The compressive strength of mortar at the age of 7 and 28 consecutive days increased by 11%. While the addition of fibers, compressive strength of mortar decreases with the increasing number of fiber mixtures. Fiber mortar decreased in weight from 7696 grams to 7640 grams, 7422 grams, and 7280 grams, for fiber of 2%, 4%, and 6% respectively.

scholarly journals Environmental Aspects of Use of Aluminium for Prefabricated Lightweight Houses: Dymaxion House Case Study

2007 ◽  
Vol 2 (4) ◽  
pp. 130-136 ◽  
Author(s):  
Katarina Mrkonjic
Keyword(s):  
Environmental Impact ◽  
Service Industry ◽  
Construction Material ◽  
Building Construction ◽  
Energy Costs ◽  
Design Strategies ◽  
Environmental Aspects ◽  
Advantages And Disadvantages ◽  
Long Run

The paper evaluates the environmental advantages and disadvantages of use of aluminium as building construction material for prefabrication of lightweight houses, by examining a case study of the Dymaxion House, designed by R. B. Fuller. The Dymaxion House was conceived as autonomous, transportable, lightweight, and disassembling unit. The predominant material in its envelope is aluminium. The production of this material has significant energy costs and environmental impact. However, aluminium is highly recyclable, long-lasting and has good performance characteristics, which, on the long run, diminishes the pressure on the natural resources and allows a significant reduction of quantity of used material. The paper re-evaluates its environmental impact on a larger time scale and takes into consideration all the aspects of its application. In addition, design strategies, (such as “design for disassembly”) of the house are studied. Finally, paper provides some considerations about the “service industry” system, as conceived by R.B. Fuller (and also used nowadays in enterprises such as Interface Inc.), necessary for securing the house manufacturer's responsibility over the entire life cycle of the dwelling, thus guaranteeing high recycling rates.

scholarly journals The Impact of Textile Waste on the Features of High-Density Polyethylene (HDPE) Composites

Urban Science ◽  
2021 ◽  
Vol 5 (3) ◽  
pp. 59
Author(s):  
Ville Lahtela ◽  
Anil Kumar ◽  
Timo Kärki
Keyword(s):  
High Density Polyethylene ◽  
Near Infrared ◽  
Raw Materials ◽  
High Density ◽  
Urban Life ◽  
Raw Material ◽  
Textile Waste ◽  
Future Challenges ◽  
Quality Of Urban Life ◽  
The Impact

An increased amount of textile waste will be available in the future, and its utilization requires attention from various perspectives. The re-utilization of textile waste in a second material cycle is an option for dealing with a global problem that puts stress on the urban environment. In this study, almost 30 kg of clothing were recycled as a raw material in the structure of a composite, whose structural properties were analyzed. The studied materials were made from high-density polyethylene (HDPE), anhydride modified polyethylene, lubricant, and either polyethylene terephthalate (PET) or rayon fibers from recycled clothes. The recycled clothes were identified by a near-infrared (NIR) analyzer, followed by treatment of size reduction and materials compounding by agglomeration and compression molding technologies. The material properties were characterized by thickness swelling, water absorption, impact, and tensile testing. The recycled clothes fibers, acting as a filler component in the structure of the composite, could maintain the properties of the material at the same level as the reference material. PET fibers being used as a component resulted in a significant improvement in impact strength. The study showed that recycled clothes can be re-utilized as a substitute for raw materials, and can be part of a solution for future challenges involving textile waste, following the principles of the circular economy. Textile recycling create opportunities to improve the quality of urban life.

scholarly journals The Effect of Curing Pressure and Duration on Mechanical Strength of Ultrahigh Molecular Weight Polyethylene/High-Density Polyethylene Composite as An Alternative Material for Windmill Turbine

Rekayasa ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 219-224
Author(s):  
Febrianti Nurul Hidayah ◽  
Johan Boss
Keyword(s):  
Mechanical Properties ◽  
Molecular Weight ◽  
Mechanical Strength ◽  
High Density Polyethylene ◽  
Bending Strength ◽  
Minimum Weight ◽  
Ultrahigh Molecular Weight Polyethylene ◽  
High Density ◽  
Significant Difference ◽  
Ultrahigh Molecular Weight

The use of steel in building or construction manufacture continues to decrease, owing in part to the sustainability and mechanical properties of fibers which have higher strength in minimum weight than steel. This preliminary study was defined to evaluate the mechanical properties of high-performance fibers, especially ultrahigh molecular weight polyethylene (UHMWPE), in terms of the composite to be the main material of windmill turbines. It was UHMWPE as reinforcement and high-density polyethylene (HDPE) as a matrix in this composite system. The composites were processed in a variety of pressure and duration (50 to 165 bar and 10 minutes to 48 hours). The mechanical strength was tested by 3-point bending tests to measure the interlaminar shear strength, shear modulus, and bending strength. The result showed a significant difference in properties of the composite which is higher pressure and longer duration obtained a higher value of mechanical strength.

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