scholarly journals An Experimental Study of Plastic Waste as Fine Aggregate Substitute for Environmentally Friendly Concrete

2021 ◽  
Vol 6 (3) ◽  
pp. 179-190
Author(s):  
Anita Intan Nura Diana ◽  
Subaidillah Fansuri ◽  
Akhmad Feri Fatoni

Decomposing plastics, including plastic bottles, is a very difficult process because it takes 50-100 years. Every year, the use of plastic bottles is increasing, but only few people are willing to treat plastic bottle waste. In this study, plastic bottle waste is used as a substitute of fine aggregate and shaped in such a way to have a sand-like gradation. The variations of graded plastic bottle waste are 0%, 5%, 10%, and 12%. The test objects for each variation consist of three specimens. Data are analyzed by using regression and classical assumption test with SPSS program. The results of the data analysis show that there is a simultaneous effect on the compressive strength with variations in plastic waste substitution. The compressive strength decreases with the increase in the percentage of plastic added. Maximum compressive strength is at the variations of 0% and 5% with19.192 MPa and 16.414 MPa, respectively.

2010 ◽  
Vol 150-151 ◽  
pp. 753-757 ◽  
Author(s):  
Xiong Hao Li ◽  
Yong Jie Xue ◽  
Min Zhou

This paper discussed the feasibility of unburned and non-autoclaved, steam cured bricks prepared by FGD byproducts from coal-fired power plants. The results show that FGD byproduct, aggregates, cementious materials and water could be used to prepare bricks during the process of stir and compaction under natural cure and steam cured condition. S4 and Z2 are the optimum design mixture composition. The maximum compressive strength and saturation coefficient are 28.7 MPa and 96.7%. FGD byproducts do no harm to environment and a pilot-scale experiment demonstrates that bricks made with FGDA can meet the MU10 level bricks technical requirement.


Author(s):  
Harish R ◽  
Ramesh S ◽  
Tharani A ◽  
Mageshkumar P

This paper presents the results of an experimental investigation of the compressive strength of concrete cubes containing termite mound soil. The specimens were cast using M20 grade of concrete. Two mix ratios for replacement of sand and cement are of 1:1.7:2.7 and 1:1.5:2.5 (cement: sand: aggregate) with water- cement ratio of 0.45 and varying combination of termite mound soil in equal amount ranging from 30% and 40% replacing fine aggregate (sand) and cement from 10%,15%,20% were used. A total of 27 cubes, 18 cylinders and 6 beams were cast by replacing fine aggregate, specimens were cured in water for 7,14 and 28 days. The test results showed that the compressive strength of the concrete cubes increases with age and decreases with increasing percentage replacement of cement and increases with increasing the replacement of sand with termite mound soil cured in water. The study concluded that termite mound cement concrete is adequate to use for construction purposes in natural environment.


2019 ◽  
Vol 276 ◽  
pp. 01014
Author(s):  
I Made Alit Karyawan Salain ◽  
I Nyoman Sutarja ◽  
Teguh Arifmawan Sudhiarta

This experimental study presents the properties of highperformance concrete (HPC) made by partially replacing type I Portland cement (OPC) with class C fly ash (CFA). The purpose of this study is to examine, with hydration time, the development of the compressive strength, the splitting tensile strength and the permeability of HPC utilizing different quantity of CFA. Four HPC mixtures, C1, C2, C3, and C4, were made by utilizing respectively 10%, 20%, 30% and 40% of CFA as replacement of OPC, by weight. One control mixture, C0, was made with 0% CFA. The mix proportion of HPC was 1.00 binder: 1.67 fine aggregate: 2.15 coarse aggregate with water to binder ratio 0.32. In each mixture, it was added 5% silica fume and 0.6% superplasticizer of the weight of the binder. Tests of HPC properties were realized at the age of 1, 3, 7, 28, and 90 days. The results indicate that CFA used to partially replace OPC in HPC shows adequate cementitious and pozzolanic properties. The compressive strength and the splitting tensile strength of HPC increase while the permeability coefficient decreases with increasing hydration time. It is found that the optimum replacement of OPC with CFA is 10%, however the replacement up to 20% is still acceptable to produce HPC having practically similar harden properties with control mixture. At this optimum replacement and after 90 days of hydration, the compressive strength, the splitting tensile strength and the permeability coefficient can reach 68.9 MPa, 8.3 MPa and 4.6 E-11 cm/sec respectively. These results are 109%, 101%, and 48% respectively of those of control mixture.


Jurnal CIVILA ◽  
2021 ◽  
Vol 6 (2) ◽  
pp. 213
Author(s):  
Asrul Majid ◽  
Hammam Rofiqi Agustapraja

Infrastructure development is one of the important aspects of the progress of a country where most of the constituents of infrastructure are concrete. The most important constituent of concrete is cement because its function is to bind other concrete materials so that it can form a hard mass. The large number of developments using cement as a building material will leave quite a lot of cement bags.In this study, the authors conducted research on the effect of adding cement waste to the compressive strength of concrete. This study used an experimental method with a total of 24 test objects. The test object is in the form of a concrete cylinder with a diameter of 15 cm and a height of 30 cm and uses variations in the composition of the addition of cement waste cement as a substitute for fine aggregate, namely 0%, 2%, 4% and 6%. K200). The compressive strength test was carried out at the age of 7 days and 28 days.The test results show that the use of waste as a partial substitute for fine aggregate results in a decrease in the compressive strength of each mixture. at the age of 7 days the variation of 2% is 16.84 MPa, 4% is 11.32 MPa and for a mixture of 6% is 6.68 MPa. Meanwhile, the compressive strength test value of 28 days old concrete in each mixture decreased by ± 6 MPa. So the conclusion is cement cement waste cannot be used as a substitute for fine aggregate in fc 16.6 (K200) quality concrete because the value is lower than the specified minimum of 16.6 MPa.


2020 ◽  
Vol 20 (3) ◽  
pp. 223-230
Author(s):  
Hijriah ◽  
Nur Hadijah Yunianti

The demand for environmentally friendly concrete mixtures is currently increasing due to an increase in global temperatures. Therefore, innovation is needed in the world of Civil Engineering to produce structures that can reduce global warming. One alternative that can be taken is by utilizing materials from environmentally friendly products such as Iron Slag. This study aims to determine the characteristics of the aggregate and to analyze the strength of the concrete mixture using Iron Slag as a substitute for fine aggregate. This research is an experimental study which was conducted in the Laboratory of Concrete and Structural Materials, Bosowa University. Variations in the test object were the levels of addition of Iron Slag with levels of 0%, 25% and 50%. The test object will be observed at the age of 28 days, where the number of test objects is 29 pieces. The tests carried out include testing the characteristics of the materials used, both coarse and fine aggregates, as well as testing the compressive strength of the concrete. Based on the results of the research analysis, it was concluded that Iron Slag waste met the criteria as fine aggregate for concrete mixtures.


2020 ◽  
Vol 12 (2) ◽  
pp. 89
Author(s):  
Masbuhin Masbuhin

This study aims to determine the process of utilizing Sidoarjo Mud (LUSI) as a substitute for paving blocks and to determine the results of the compressive strength test of using LUSI as a substitute for paving blocks. The LUSI substitution is expected to be able to provide innovations in the construction of a paving block mixture. The research method used is the experimental method. The manufacture of test objects starts from the preparation stage, mix design, manufacture of test objects, testing and classifying paving blocks according to SNI 03-0691-1996. The sample of specimens used normal mix design and mix design substitute LUSI 40% of the fine aggregate value. Based on the results of research, paving blocks with a normal mix design of 1Pc: 2Ps are classified as quality A, 1Pc: 3Ps and 1Pc: 4Ps are classified as B quality, while for paving blocks substituting LUSI in a mixture of 1Pc: 2Ps is classified as quality B, for a mixture of 1Pc: 3Ps and 1Pc : 4Ps is classified as C quality. It can be concluded that the compressive strength of paving blocks has decreased in compressive strength after being substituted by LUSI, with a successive percentage value of 32%, 59% and 58%.


2020 ◽  
Vol 853 ◽  
pp. 109-114
Author(s):  
Xin Gu ◽  
Shu Chang Sun ◽  
Mao Xing Xu ◽  
Yi Liang Peng

From the compression test of steel fiber recycled mortar porous brick masonry, it was researched the effects of different amounts of steel fiber and recycled fine aggregate on compressive strength, failure morphology, elastic modulus, stress-strain law and Poisson's ratio performance. The test value is compared with the calculation formula of ordinary mortar porous brick given in GB 50003-2011.The test showed that the steel fiber recycled mortar porous brick masonry had better compressive strength and deformability.


Jurnal PenSil ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 166-176
Author(s):  
Melinda Putri Haryani ◽  
Kusno Adi Sambowo ◽  
Anisah

Abstrak Penelitian ini bertujuan untuk mengetahui pengaruh dari pemanfaatan limbah plastik PET, limbah plastik PP dan tanah diatomae sebagai bahan pengganti pasir sehingga dapat diketahui mutu yang mampu dicapai dan kesesuaiannya dengan SNI 03-0691-1996 mengenai paving block secara fisis maupun mekanis. Penelitian ini menggunakan metode eksperimen dengan benda uji paving block menggunakan limbah plastik PET, limbah plastik PP dan tanah diatomae sebagai bahan pengganti pasir dalam populasinya terdapat 5 presentase yaitu 0% (control), 5%, 10%, 15%, dan 20% dengan jumlah benda uji setiap variasi adalah 14 buah. Benda uji pada penelitian ini berukuran 210 mm x 105 mm x 80 mm berbentuk balok yang dicetak menggunakan mesin press vibrator. Setelah selesai pencetakan, benda uji dilakukan perawatan (curing) di dalam bak air selama ±28 hari. Kemudian dilakukan pengujian untuk mengetahui mutu benda uji sesuai dengan SNI 03-0691-1996 mengenai paving block, berupa uji tampak dan ukuran, uji kuat tekan, uji daya serap air, dan uji ketahanan terhadap Natrium Sulfat. Berdasarkan penelitian yang telah dilakukan, diperoleh hasil kuat tekan pada substitusi agregat halus buatan dengan variasi 0% (control), 5%, 10%, 15%, dan 20% berturut-turut 17,708 Mpa (Mutu B), 18,479 Mpa (Mutu B), 18,722 Mpa (Mutu B), 17,936 Mpa (Mutu B), dan 14,749 Mpa (Mutu C). Pada uji daya serap air hanya paving block dengan variasi 20% yang masuk ke dalam mutu C, kemudian pada pengujian ketahanan aus seluruh benda uji masuk ke dalam mutu A. Sementara untuk uji ketahanan terhadap Natrium Sulfat, hanya variasi 0% dan 5% yang tidak lolos uji. Dari hasil pengujian menunjukan bahwa penggunaan limbah plastik PET, limbah plastik PP, dan tanah diatomae sebagai agregat halus buatan yang disubstitusi ke agregat halus alami pada variasi 10% mampu mencapai mutu B yang digunakan sebagai peralatan parkir. Kata kunci: Limbah Plastik PET, Limbah Plastik PP, Tanah Diatomae, Agregat Halus, Paving Block, SNI 03-0691-1996   Abstract This study aims to determine the effect of the utilization of PET plastic waste, PP plastic waste and diatomaceous earth as a substitute for sand so that the quality that can be achieved and its conformity with SNI 03-0691-1996 regarding paving blocks physically and mechanically can be determined. This study uses an experimental method with paving block specimens using plastic as a substitute for sand in the population there are 5 percentages, namely 0% (control), 5%, 10%, 15% and 20% with the number of specimens for each variation is 14 pieces. The test object in this study measuring 210 mm x 105 mm x 80 mm in the form of a block printed using a vibrator press machine. After completion of printing, the specimens were treated (cured) in a water bath for ±28 days. Then a test was carried out to determine the quality of the test object in accordance with SNI 03-0691-1996 regarding paving blocks, in the form of appearance and size test, compressive strength test, water absorption test, and resistance test to Sodium Sulfate. Based on the research that has been done, the results of the compressive strength of artificial fine aggregate substitution with variations of 0% (control), 5%, 10%, 15% and 20% respectively 17.708 Mpa (Quality B), 18.479 Mpa (Quality B) , 18,722 Mpa (Quality B), 17,936 Mpa (Quality B), and 14,749 Mpa (Quality C). In the water absorption test, only paving blocks with a variation of 20% were categorized as C quality, then all the paving block are included in quality A in wear resistance testing. Meanwhile, for the sodium sulfate resistance test, only 0% and 5% variations did not pass the test. The test results show that the use of PET plastic waste, PP plastic waste, and diatomaceous earth as artificial fine aggregate which is substituted for natural fine aggregate at a variation of 10% is able to achieve B quality which is used as parking equipment. Keywords: Waste PET Plastic, PP Plastic Waste, Diatomaceous Earth, Fine Aggregate, Paving Block, SNI 03-0691-1996


2021 ◽  
Vol 72 (4) ◽  
pp. 477-485
Author(s):  
Chi Dang Thuy

Cement-based grouts are widely used thanks to its outstanding features such as high workability, non-separation, non-bleeding, easy to fulfill small gaps with complex shapes. This paper descrcibes the first phase of a series of laboratory experiments that examined the ability of production of self - levelling mortar at the University of Transport and Communications. The Portland cement-based grout incorporated superplasticizer, fly ash, fine aggregate, water along with expansion agent to match as closed as possible the given high strength non-shrink grout. The experimental study focused on the performance of non-shrink grouts regarding the flowability, expansion and bleeding, strengths and drying shrinkage of the test grout mixtures. The high range water reducer (HRWR) at dosage of 1% by weight of cement was used as a flowability modifying chemical admixture to prevent water segregation and leads to an increase in compressive strength. The parameter tests consist of water-cement ratios, and fixed dosages of superplasticizer and expansive agent. To examine the flowability of grout mortars, the flow cone test was applied. The flow cone test result indicated that there were three proportional of grouts that can meet the requirement of fluidity. The compressive strength of specimens was tested according to ASTM C349-14. It was concluded that the compositions of grouts at a water-cement ratio of from 0.29 to 0.33 have compressive strengths greater than 60 MPa. The tested specimens using the expansive agent with the dosage recommended by the manufacturer meet the non-shrinkage requirement of a grout. The experimental results have demonstrated the ability of production of high strength non-shrink grouts.


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