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Mixture of Concrete and Coconut Coir Fiber for Rural Pavement


Mixture of Concrete and Coconut Coir Fiber for Rural Pavement

Roads and other forms of public infrastructure are built outside of urban areas as well. This road's building will undoubtedly boost transportation and have an effect on a region's economic development.

But regrettably, because they take a detour to visit economic hubs like markets and sub-districts, most of the inhabitants of the villages that are still standing today must travel great distances.

Not to mention the deteriorating road conditions, which include footpaths, dirt roads, and frequently undulating terrain. The residents' ability to conduct their business effectively is hindered by the road's restricted access.

The usage of roads that exceeds the maximum load of the road is one of the factors that contribute to damage to roads with concrete pavement, which is frequently observed in rural regions. This is a result of improperly chosen materials or implemented construction techniques.

Therefore, advancements in the construction industry are required, particularly for concrete-based road pavements that incorporate a variety of environmentally friendly materials. As a result, Ricky Surya Hutama Putra, a student at Yogyakarta State University (UNY), D4 Civil Engineering Faculty Vocational Faculty, decided to pioneer the use of coco fiber as a concrete addition for the paving of rural roads.

Sand and other fine aggregates, such as crushed stone and gravel, along with other ingredients like water and cement, make up the construction material known as concrete. "Once in a while, additional components or admixtures are added with the intention of producing concrete under unique conditions. This is due to concrete's additional properties, which include having a high compressive stress and a low tensile stress, according to Ricky, as quoted on the UNY website on Friday, April 28, 2023.

Because it will produce concrete of higher quality and lessen cracking, Ricky decided to use natural coconut coir fiber (cocofiber) in the mix to create environmentally friendly concrete. So that coconut coir is more resilient and long-lasting, cocofiber is created by washing and drying coconut meat.

Therefore, enhancing concrete quality in the construction industry, particularly for projects using environmentally friendly concrete, will help young engineers further develop industrial products.

 Especially with natural renewable energy that is more advantageous for the development of the Indonesian country and state. To boost shrinkage resistance, sustain tensile pressures, and provide an increase in flexural strength, fiber is added to the concrete mix.

The maximum ideal compressive strength and concrete failure modulus can both be increased by adding coconut coir to the concrete mixture in a certain proportion.

A native of Argopeni, Sudimoro, Srumbung, Magelang claims that coco fiber is a substance made of fibers that have a thickness of 5 cm and are found in the coconut's shell. Up to 60% of the fiber in a mattress can be removed, compared to 40% of the fiber in medium-length hair.

From a total of 1,000 grams, 70 parts will be taken from the fiber, 19 from the mattress fibers, and 12 from the feather fibers. The graduates of SMAN 1 Muntilan That claimed that coconut coir has comparatively advantageous technical characteristics, including being 15 to 30 cm long, resistant to germs, weathering, as well as mechanical activity like being beaten or rubbed, and weighing less than other fibers.

The deformation load will subsequently be passed to the fibers in the fiber-reinforced concrete. Fibers' primary function is to stop cracks from spreading further by placing traps at their ends and thereby slowing their progress through the matrix.

When compared to concrete without fiber, the ultimate composite strain will thus rise. The amount of contaminants, color, weight distribution of long and short fibers, and water content all affect the quality of the fiber.

Due to its inferior tensile strength under wet conditions, coconut fiber performs better when utilized as a concrete additive while it is dry. When tested, it was found that pulling wet coconut fiber was easier than pulling dry coconut fiber.

The late couple's son, Laksono Listiyanto, who works as a trader in a traditional market, explained how adding coco fiber to concrete increases its flexural strength. The flexural strength value of concrete specimens that had coconut fiber added to them during testing increased and was higher than that of regular concrete.

Coconut fiber can be added to concrete to boost its flexural strength. Use to compare concrete with an average age of 28 days with normal concrete CF0, which has a flexural strength of 4.29 MPa, and concrete with the addition of CF31 coir fiber, specifically 3 cm long coco fiber and 1 percent coco fiber by weight of cement, which results in a flexural strength of 4.9 MPa, with an increase in magnitude of 0.61 MPa.

The percentage increase in testing flexural strength with a ratio of normal concrete CF0 and CF31 coco fiber concrete is 7.95% of the compressive strength test, according to the results of the optimal value of the percentage addition of coco fiber by testing CF31 concrete, which is 3 cm long of coco fiber and 1% of coco fiber by weight of cement in the normal concrete ratio CF0.

With the help of this work, Ricky Surya Hutama Putra was able to graduate from the D4 Civil Engineering study program the quickest and best with a 3.42 GPA in February 2023 at UNY. He was also the first winner of the 2022 Indonesian National Vocational Olympiad Material Construction Innovation. has held a position in the QHSE division at Waskita Precast Beton.

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