scholarly journals Studi Kelayakan Penggunaan Cangkang Kemiri Sebagai Pengganti Sebagian Agregat Kasar Terhadap Mutu Beton

2020 ◽  
pp. 41-46
Author(s):  
H. Haris
Keyword(s):  
Compressive Strength ◽  
Natural Resources ◽  
Coarse Aggregate ◽  
Building Construction ◽  
Fine Aggregate ◽  
Construction Sector ◽  
Concrete Compressive Strength ◽  
Concrete Mixtures ◽  
Materials Used ◽  
Renewable Natural Resource

In the current era of globalization, the development of concrete in the construction sector is very rapid, be it housing, offices, bridges, roads, dams, ports, and others. That is inseparable from the use of concrete as a part of building construction. The use of coarse aggregate for concrete mixes, namely natural stone, is a non-renewable natural resource. Therefore an alternative is needed as a substitute. One of the natural resources that can be renewed is hazelnut skin. Candlenut is a traditional plant that has various benefits, one of which is a candlenut shell. In this study, the materials used for standard concrete mixtures consist of water, cement, fine aggregate, and coarse aggregate. The water used for mixing the concrete is taken from the PDAM channel. The results showed that the effect of candlenut shells used as a substitute for some coarse aggregate decreased compressive strength results from the results of standard concrete compressive strength. The results obtained by the value of standard concrete compressive strength at 28 days of concrete were 27.19Mpa for concrete using Candlenut shells of 20% produce a compressive strength value of 17.33 Mpa at 28 days of concrete. 35% produce a concrete compressive strength value of 16.04 Mpa, while 50% produce a concrete compressive strength value of 15.17 Mpa. Thus the research shows that more and more candlenut shells are being used as a substitute for coarse aggregate in the concrete mixture.

scholarly journals Limbah Beton Sebagai Material Agregat Halus Terhadap Kuat Tekan Karakteristik

2019 ◽  
Vol 6 (2) ◽  
pp. 145
Author(s):  
Budiman Budiman
Keyword(s):  
Compressive Strength ◽  
Coarse Aggregate ◽  
Building Construction ◽  
Fine Aggregate ◽  
Concrete Compressive Strength ◽  
Fine Aggregates ◽  
Fineness Modulus

Concrete waste from building construction can cause problems for the environment [1]. The use of fine aggregates from concrete waste can be a solution. The purpose of this study is to determine the value of aggregate characteristics and the value of concrete compressive strength from the utilization of concrete waste as substitution fine aggregate use the DOE (department of environment) method and referring to standards SNI. This study used 50% and 60% waste mortal substitution on sand. The results showed that the characteristics of fine aggregate and coarse aggregate met the characteristic requirements for fineness modulus sand of 2.65 (Zone 2) while the aggregate was roughly 6.44 (Zone 3). The value of compressive strength with 50% and 60% concrete waste substitution each obtained the value of characteristic compressive strength of 57.24 kg / cm² and 101.03 kg / cm². The value of using mortar waste as fine aggregate substitution gives a positive value to the quality of concrete. This is evidenced increase in the value of 14.89% in concrete waste substitution 60%.

scholarly journals PENGARUH CAMPURAN ABU SEKAM PADI DAN ABU ARANG TEMPURUNG SEBAGAI PENGGANTI SEBAGIAN AGREGAT HALUS TERHADAP KUAT TEKAN BETON

2021 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Agung Prayogi
Keyword(s):  
Compressive Strength ◽  
Rice Husk ◽  
Coarse Aggregate ◽  
Rice Husk Ash ◽  
Fine Aggregate ◽  
Concrete Compressive Strength ◽  
Fine Aggregates ◽  
Compressive Strength Of Concrete ◽  
Average Compressive Strength ◽  
By Products

Abstract Concrete is the most widely used material throughout the world and innovations continue to be carried out to produce efficient development. Shell charcoal ash and rice husk ash are industrial by-products which have the potential to replace sand for concrete mix, especially in Indragiri Hilir. The research with the title "Effect of Mixture of Rice Husk Ash and Shell Ash Ashes as Substitute for Some Fine Aggregates Against Concrete Compressive Strength" aims to prove the effect of a mixture of shell charcoal ash and husk ash to replace some of the sand to produce maximum compressive strength. Concrete is a mixture of Portland cement, fine aggregate, coarse aggregate, and water. This research uses 5 variations of the mixture to the weight of sand, BSA 0 without a substitute mixture, BSA 1 with a mixture of 5% husk ash and 10% shell charcoal, BSA 2 with a mixture of 5% husk ash and 15% charcoal ash, BSA 3 with a mixture of 5% husk ash and 18% charcoal, BSA 4 with a mixture of 10% husk and 10% charcoal, and BSA 5 with a mixture of 13% husk ash and 10% charcoal ash. SNI method is used for the Job Mix Formula (JMF) mixture in this research. The results of the average compressive strength of concrete at 28 days for JMF of 21.05 MPa, BSA 1 of 23.68 MPa, BSA 2 of 22.23 MPa, BSA 3 of 14.39 MPa, BSA 4 of 13.34 MPa , and BSA 5 of 20.14 MPa. The conclusion drawn from the results of the BSA 1 research with a mixture of 5% husk ash and 15% charcoal ash produced the highest average compressive strength of 23.68 MPa. Abstrak Beton merupakan material paling banyak digunakan diseluruh dunia dan terus dilakukan inovasi untuk menghasilkan pembangunan yang efisien. Abu arang tempurung dan abu sekam padi merupakan hasil sampingan industri yang berpotensi sebagai pengganti pasir untuk campuran beton, khususnya di Indragiri Hilir. Penelitian dengan judul “Pengaruh Campuran Abu Sekam Padi dan Abu Arang Tempurung Sebagai Pengganti Sebagian Agregat Halus Terhadap Kuat Tekan Beton” ini bertujuan membuktikan adanya pengaruh campuran abu arang tempurung dan abu sekam untuk mengganti sebagian pasir hingga menghasilkan kuat tekan maksimum. Beton adalah campuran antara semen portland, agregat halus, agregat kasar, dan air. Penelitian ini menggunakan 5 variasi campuran terhadap berat pasir, BSA 0 tanpa campuran pengganti, BSA 1 dengan campuran 5 % abu sekam dan 10% arang tempurung, BSA 2 dengan campuran 5% abu sekam dan 15% abu arang, BSA 3 dengan campuran 5% abu sekam dan 18% arang, BSA 4 dengan campuran 10% sekam dan 10% arang, dan BSA 5 dengan campuran 13% abu sekam dan 10% abu arang. Metode SNI digunakan untuk campuran Job Mix Formula (JMF)  pada penelitian ini. Hasil rata-rata kuat tekan beton pada umur 28 hari untuk JMF sebesar 21,05 MPa, BSA 1 sebesar 23,68 MPa, BSA 2 sebesar 22,23 MPa, BSA 3 sebesar 14,39 MPa, BSA 4 sebesar 13,34 MPa, dan BSA 5 Sebesar 20,14 MPa. Ditarik kesimpulan dari hasil penelitian BSA 1 dengan campuran 5% abu sekam dan 15% abu arang menghasilkan rata-rata kuat tekan tertinggi yaitu sebesar 23,68 MPa.  

scholarly journals Comparation Study of the Use Naftalena from Coal Tar Waste with Camper Napthtalene as Concrete Admixture

2020 ◽  
Vol 3 (2) ◽  
pp. 99-108
Author(s):  
Agung Sumarno ◽  
Syafwandi Syafwandi ◽  
Fatmawati Adelia Rizky ◽  
Sumiyati Sumiyati
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Water Use ◽  
Coarse Aggregate ◽  
Coal Tar ◽  
Molecular Formula ◽  
Fine Aggregate ◽  
Concrete Compressive Strength ◽  
Hydraulic Cement ◽  
Benzene Rings

Concrete is a mixture of Portland cement or other hydraulic cement, fine aggregate, coarse aggregate, and water, with or without additives (admixture). The naphthalene superplasticizer used comes from distillation of coal tar and a little from the rest of petroleum, but there is also camphor naphthalene. Where camphor grains contain 250-500 mg of naphthalene. Naphthalene is mostly produced from coal tar distillation, and a little from the rest of the fractionation of petroleum, by the molecular formula (C10H8) and in the form of two unified benzene rings. This compound is volatile, volatile even in the form of solids. The vapor produced is flammable. The purpose of this study was to determine the effect of the use of naphthalene from coal tar waste with camphor naphthalene as concrete admixture, and determine the effect of naphthalene from coal tar waste with camphor naphthalene on concrete toughness, density, water absorption, of concrete compressive strength. It is expected that the use of naphthalene can reduce the use of cement, and reduce water use. But it does not reduce the strength of the concrete so as to reduce costs in making concrete. The variations in the use of camphor naphthalene and coal tar naphthalene are 20%, 30%, 40%.

scholarly journals ANALISIS PERBANDINGAN MUTU BETON DENGAN MENGGUNAKAN BERBAGAI CARA PENGADUKAN (READY MIX, MOLEN DAN MANUAL)

2020 ◽  
Vol 28 (1) ◽  
pp. 106
Author(s):  
Rahelina Ginting ◽  
Winarko Malau
Keyword(s):  
Compressive Strength ◽  
Construction Projects ◽  
Coarse Aggregate ◽  
Fine Aggregate ◽  
Test Results ◽  
Concrete Compressive Strength

Concrete work is widely used in construction projects now. To get a good quality concrete depends very much on the quality of the constituent materials, namely cement, water, fine aggregate, coarse aggregate, and also the process of working or stirring. In this research, 27 MPa concrete compressive strength will be investigated with various stirring methods (Manual Mix, Molen Mix and Ready Mix). These three methods of stirring certainly have their respective uses in the process, usually Manual, Molen and Ready Mix are used depending on the conditions of the project being worked on. From this test, results are obtained by means of manual stirring, Molen stirring and Ready Mix with compressive strength average: (266,467 kg / cm2) (278,368 kg / cm2) (284,595 kg / cm2). The results of the study stated that the research carried out fulfilled the estimation target 'c = 27 Mpa.

scholarly journals Kajian Pengaruh Variasi Material Terhadap Kuat Tekan Beton

2018 ◽  
Vol 3 (1) ◽  
pp. 55
Author(s):  
Suhendra Suhendra
Keyword(s):  
Compressive Strength ◽  
Coarse Aggregate ◽  
Concrete Aggregate ◽  
Fine Aggregate ◽  
Test Results ◽  
Concrete Compressive Strength ◽  
Coarse Aggregates ◽  
Fine Aggregates ◽  
Laboratory Test Results

Aggregate quality is very influential on the strength of the resulting concrete. Both coarse and fine aggregates have various characteristics identified from laboratory test results. This study aims to examine the use of various aggregates for a quality of concrete. The coarse aggregate and the fine aggregate used are obtained from the nearest location to the work to be performed. The quality of the concrete reviewed is K-125, K-175 and K-225. The coarse aggregates used are 1-2 size (in cm), 2-3 size (in cm) crushed aggregate and coral. The fine aggregates used for each of the coarse aggregates are also different. The results showed that the coral aggregate did not meet the gradations of concrete aggregate. While the fine aggregate does not meet the gradation of concrete aggregate for the three types used. The concrete compressive strength test results show the use of coarse aggregates of 2-3 size of crushed and coarse aggregate of corals giving the average compressive strength value required for all planned concrete strength. While concrete using coarse aggregates of rocks of size 1-2 only meet the specified compressive strength, but does not meet the required compressive strength.Key words: Aggregates, concrete, compressive strength

scholarly journals Comparation Study of The Use Naftalena From Coal Tar Waste with Camper Naphtalene As Concrete Admixture

2020 ◽  
Vol 2 (2) ◽  
pp. 165-173
Author(s):  
Sumarno Agung ◽  
Syafwandi Syafwandi ◽  
Adelia Rizky Fatmawati ◽  
Sumiyati Sumiyati
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Water Use ◽  
Coarse Aggregate ◽  
Coal Tar ◽  
Molecular Formula ◽  
Fine Aggregate ◽  
Concrete Compressive Strength ◽  
Hydraulic Cement ◽  
Benzene Rings

Concrete is a mixture of Portland cement or other hydraulic cement, fine aggregate, coarse aggregate, and water, with or without additives (admixture). The naphthalene superplasticizer used comes from the distillation of coal tar and a little from the rest of petroleum, but there is also camphor naphthalene. Where camphor grains contain 250-500 mg of naphthalene. Naphthalene is mostly produced from coal tar distillation, and a little from the rest of the fractionation of petroleum, by the molecular formula (C10H8) and in the form of two unified benzene rings. This compound is volatile, volatile even in the form of solids. The vapor produced is flammable. The purpose of this study was to determine the effect of the use of naphthalene from coal tar waste with camphor naphthalene as concrete admixture, and determine the effect of naphthalene from coal tar waste with camphor naphthalene on concrete toughness, density, water absorption, of concrete compressive strength. It is expected that the use of naphthalene can reduce the use of cement, and reduce water use. But it does not reduce the strength of the concrete so as to reduce costs in making concrete. The variations in the use of camphor naphthalene and coal tar naphthalene are 20%, 30%, 40%.

scholarly journals PENELITIAN PENAMBAHAN BAHAN BATU PADAS PADA CAMPURAN ASPAL BETON

2019 ◽  
Vol 2 (1) ◽  
pp. 154
Author(s):  
Supriadi Supriadi ◽  
Yosef Cahyo ◽  
Ahmad Ridwan ◽  
Agata Iwan Candra
Keyword(s):  
Compressive Strength ◽  
Asphalt Concrete ◽  
Coarse Aggregate ◽  
Asphalt Binder ◽  
Strong Stability ◽  
Average Height ◽  
Optimum Level ◽  
Fine Aggregate ◽  
Concrete Mixtures ◽  
Technical Specifications

Asphalt Concrete (Hotmix) is a mixture of coarse aggregate, fine aggregate and filler (Filler) with asphalt binder in high temperature conditions with the composition studied and regulated by technical specifications. In this study, asphalt concrete mixtures were given materials additional padas. This addition was carried out to study and determine the effect of padas on the asphalt concrete mixture with the addition of 5%, 10%, and 15%. Compressive strength specimens in the form of cylinders with a diameter of 10.09 cm and an average height of 7.8 cm. Testing is done after 2 days. Asphalt with the addition of 5% padas is better able to produce a better value of stability than others. The addition of padas rock produced a strong stability of 5% at 888.0747 kg, 10% at 598,199 kg, 15% at 441,6391 kg. To reach the optimum level, the mixture on concrete asphalt ranges < 5%Aspal Beton (Hotmix) adalah campuran agregat kasar, agregat halus, dan bahan pengisi (Filler) dengan bahan pengikat aspal dalam kondisi suhu tinggi (panas) dengan komposisi yang diteliti dan diatur oleh spesifikasi teknis.. Pada penelitian ini, campuran aspal beton diberi bahan tambahan batu padas. Penambahan ini dilakukan untuk mempelajari dan mengetahui pengaruh batu padas pada campuran aspal beton dengan penambahan 5%, 10%, dan 15%. Benda uji kuat tekan berupa silinder dengan diameter 10,09 cm dan  tinggi rata rata 7,8 cm. Pengujian dilakukan setelah 2 hari. Aspal dengan  penambahan batu padas 5% lebih mampu menghasilkan  nilai stabilitas yang lebih baik dari pada yang lainya. Penambahan batu padas menghasilakan  kuat stabilitas masing masing yaitu 5% sebesar 888.0747 kg, 10% sebesar 598.199 kg, 15% sebesar 441.6391 kg. Untuk mencapai kadar optimum maka campuran padas pada aspal beton berkisar antara < 5%

scholarly journals ALTERNATIF PENGGUNAAN SERATECENG GONDOK (EICHHORNIA CROSSIFES) SEBAGAI BAHAN TAMBAH PADACAMPURAN BETON DITINJAU TERHADAP KUAT TEKANNYA

UKaRsT ◽  
2019 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Budi Tri Cahyono ◽  
Rio Rahma Dhana
Keyword(s):  
Compressive Strength ◽  
Water Hyacinth ◽  
Coarse Aggregate ◽  
Fine Aggregate ◽  
Concrete Compressive Strength ◽  
Concrete Mix Design ◽  
Astm Method ◽  
O 15 ◽  
Data Analysis Methods ◽  
Water Hyacinth Fiber

ABSTRACTIn this increasingly advanced era, the more development is carried out, the increasing scale of development. It shows more and more concrete needs in the future. The purpose of this study is to find out and analyze the addition of water hyacinth fiber as a mixture on concrete. Data analysis methods begin with the investigation of cement material, fine aggregate, coarse aggregate, and water hyacinth material. Concrete is added with water hyacinth fiber with addition variations of 0%, 1%, 3% and 5%. Test object used in the form of a cylinder with size ø 15 cm x 30 cm. Concrete mix design uses ASTM method. In the process of making water hyacinth fiber begins with cutting the water hyacinth by 3-5 cm, then milling it into fiber. The next step is drying into the sun and then into the oven at 150ºC. From the results of the research conducted at the Civil Engineering Laboratory of Lamongan Islamic University, the results showed that there was a decrease in strength in the variation of the addition of water hyacinth 1% and 3% but experienced an increase in the 5% variation. It is known that the correlation of concrete compressive strength at 28 days is 0% at 86.27 Kg/cm2, 1% at 60.66 Kg/cm2, 3% at 55.27 Kg/cm2 and 5% at 57.97 Kg/cm2.Keywords: water hyacinth, concrete, compressive strength.

scholarly journals Comparison Mechanical Properties of Two Types of Light Weight Aggregate Concrete

2019 ◽  
Vol 5 (5) ◽  
pp. 1105-1118
Author(s):  
Hesham A. Numan ◽  
Mohammed Hazim Yaseen ◽  
Hussein A. M. S. Al-Juboori
Keyword(s):  
Compressive Strength ◽  
Abrasion Resistance ◽  
Coarse Aggregate ◽  
Lightweight Aggregate ◽  
Peak Level ◽  
Concrete Mixture ◽  
Fine Aggregate ◽  
Concrete Mixtures ◽  
Light Weight Aggregate ◽  
Reference Mixture

This paper presents the behavior of concrete properties by replacing the conventional coarse aggregate used in the concrete mixture by two types of lightweight aggregate; Expanded Perlite Aggregate (EPA) and Volcanic Pumice (VP). To fulfill this aim; three laboratory tests were applied; density, compressive strength, and abrasion resistance, that conducted to extrapolate the range of the changes in the properties of concrete with existence those types of aggregate in the mixture. Also, the volumetric proportion adopted as a strategy for replacing the coarse aggregate by EPA or VP in the concrete mixture. Then, the volumetric proportion ranged from 10% to 50% with the variation step was 10%. Therefore, ten concrete mixtures are prepared and divided into two groups; each group contains five concrete mixes to represent the volumetric replacement (10-50)% of conventional coarse aggregate by EPA or VP. On the other hand, one extra mixture designed by using conventional aggregate (coarse and fine aggregate) without any inclusion of EPA or VP to be considered as a reference mixture. The obtained laboratory results of this study proved that the density, compressive strength, and abrasion resistance readings of concrete decreased at any volumetric proportion replacement of coarse aggregate by EPA or VP. The decrease in density and compressive strength of concrete readings amounted the peak level at 50% replacing of coarse aggregate by EPA, which were 38.19% and 77.37%, respectively than the reference mixture. Additionally, the compressive strength is an important factor affecting the abrasion resistance of concrete mixture, and loss of abrasion decreased as compressive strength increased.

COMPRESSIVE STRENGTH OF CONCRETE USING PLASTIC BOTTLE WASTE AGREGAT ADDED AS MATERIAL ROUGH

2021 ◽  
Vol 7 (2) ◽  
pp. 56-63
Author(s):  
Nandy Candra ◽  
Whendy Trissan
Keyword(s):  
Compressive Strength ◽  
Polyethylene Terephthalate ◽  
Coarse Aggregate ◽  
Type I ◽  
Fine Aggregate ◽  
Waste Plastic ◽  
Plastic Bottle ◽  
Concrete Mix Design ◽  
Concrete Mixtures ◽  
Faculty Of Education

Plastic bottle is waste that can be utilized. This research is used as additive in concrete mixtures can provide an alternative to Utilize the waste. Such as waste plastic bottles PET (Polyethylene Terephthalate). Optimizing the utilization of waste plastic bottles PET (Polyethylene Terephthalate) is expected to reduce the waste that pollutes the environment and provide added value.The fiber to be used as an additive in concrete mixtures. The fibers are mixed with fine aggregate, water and PPC cement type I gresik brands. Concrete mix design using SNI 03-2843-2000 about how making plans mixture of normal concrete. Tests using a cylinder measuring 10 cm x 20 cm, each variation using 10 samples consisting of five variations (0%, 5%, 10%, 15%, 20%) and tested at 14 and 28 days in Laboratory Studies Engineering Education building the Faculty of Education University of Palangkaraya.Average compressive strength at 14 days for variations of coarse aggregate mixture of chopped plastic bottle 0%, 5%, 10%, 15% and 20%, respectively for 23:02 MPa; 12:35 MPa; 10.49 MPa; 9.6 MPa; 8.83 MPa. Average compressive strength at 28 days for variations of coarse aggregate mixture of chopped plastic bottle 0%, 5%, 10%, 15% and 20%, respectively for 25.77 MPa; 13.62 MPa; 11.84 MPa; 10.8 MPa; 10:28 MPa

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