scholarly journals KARAKTERISTIK MEKANIS BETON YANG MENGGUNAKAN IRON SLAG SEBAGAI AGREGAT HALUS

2020 ◽  
Vol 20 (3) ◽  
pp. 223-230
Author(s):  
Hijriah ◽  
Nur Hadijah Yunianti
Keyword(s):  
Test Object ◽  
Environmentally Friendly ◽  
Fine Aggregate ◽  
Iron Slag ◽  
Concrete Mixtures ◽  
Fine Aggregates ◽  
Materials Used ◽  
Slag Waste ◽  
Test Objects ◽  
Research Analysis

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.

scholarly journals The Effect Of Seawater Use On Concrete Mixtures With Variations In Semen Water Factor

2020 ◽  
Vol 6 (2) ◽  
pp. 44
Author(s):  
Muh. Sayfullah S.
Keyword(s):  
Fresh Water ◽  
Test Object ◽  
Concrete Mixture ◽  
Fine Aggregate ◽  
Concrete Mixtures ◽  
Water Factor ◽  
The Press ◽  
Test Objects

The purpose in this study was to know the characteristic properties of fine aggregate materials and rough aggregates derived from Badene Village batauga sub-district as well as to know the strong press produced by concrete against seawater mixture with variations of cement water factor. In this study the material was mixed using laur water and fresh water with variations in cement water factor which is 0.45, 0.50, and 0.55. Testing is carried out at the age of concrete 3 days, 7 days and 28 days, using the dimensions of the slinder test object 15 cm x 30 cm. The total number of test objects is 54 pieces. The stronger the concrete press by using seawater as a concrete mixture can increase the strong press of concrete when compared to fresh water, as well as the smaller the value of the cement water factor used then the greater the strong value of the press. Strong press concrete with seawater mixture using cement water factor 0.55, 0.50, and 0.45 at age 28 days produce strong concrete presses respectively 15.82 MPa, 18.65 MPa, and 20.85 MPa, while strong concrete press with freshwater mixture using cement water factor 0.55, 0.50, and 0.45 at 28 days old produce strong concrete press 15.70 MPa respectively 18.40 MPa and 20.00 MPa. The results showed the influence of seawater use on concrete mixtures can increase the strength of the press compared to the use of concrete mixtures using fresh water.

scholarly journals Iron slag as fine aggregate replacement and nanosilica particles in self-compacting concrete mixtures

2019 ◽  
Vol 1386 ◽  
pp. 012032
Author(s):  
M F Mantilla Díaz ◽  
J A Villamizar Pabón ◽  
S Ruiz Martínez ◽  
L E Zapata Orduz
Keyword(s):  
Fine Aggregate ◽  
Self Compacting Concrete ◽  
Iron Slag ◽  
Concrete Mixtures ◽  
Nanosilica Particles

scholarly journals Special Concrete with Polymers

2016 ◽  
Vol 14 (11) ◽  
pp. 7-10
Author(s):  
Nicolae Angelescu ◽  
Ioana Ion ◽  
Darius Stanciu ◽  
José Barroso Aguiar ◽  
Elena Valentina Stoian ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Portland Cement ◽  
Epoxy Resin ◽  
Raw Materials ◽  
Polymeric Materials ◽  
Polymer Concrete ◽  
Fine Aggregate ◽  
Concrete Mixtures ◽  
Experimental Works ◽  
Materials Used

Abstract The development of polymeric materials offers new perspectives of science and technology due to their outstanding properties. These properties are obtained either due to the effect of dispersion polymers and their polymerization either due to their intervention in structure formation. They were prepared epoxy resin polymer concrete, Portland cement, coarse and fine aggregate and to evaluate the influence of resin dosage on microstructures and density of such structures reinforced concrete mixtures. The paper detailing the raw materials used in experimental works and structural properties of concrete studied.

scholarly journals Improving of Concrete Tightness by Using Surface Blast-cleaning Waste as a Partial Replacement of Fine Aggregate

2019 ◽  
Author(s):  
Wojciech Kubissa ◽  
Roman Jaskulski
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Free Water ◽  
Copper Slag ◽  
Absorption Capacity ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Chloride Ingress ◽  
Concrete Mixtures ◽  
Slag Waste

In the article the possibility of using surface blast-cleaning waste (copper slag based) as a replacement of fine aggregate in high performance concrete manufacturing was presented. Concrete with w/c ratio 0.45 and 360 kg/m3 dosage of cements: CEM I 42.5R, CEM II/B-V 42.5N and CEM III/A 42.5N was tested. The consistency measured in table flow test was assumed as 420 ± 30 mm so superplasticizer was used. The replacement rate of the fine aggregate 0–2 mm with the copper slag (CS) waste was 66 %. Concrete mixtures with sand served as reference. The performed tests focused on: compressive and tensile strength (both after 28 days), sorptivity, free water absorption capacity, Torrent air permeability, and chloride ingress depth after salt fog treatment. A freeze resistance test was also carried out according to PN-B-06265. The obtained results showed that the strength and some other tested properties of concrete mixtures with copper slag waste were similar or better than those of the mixtures with sand. The results of the tests indicate that the concrete with copper slag waste is more tight than the concrete with sand and therefore is more durable.

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
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Data Analysis ◽  
Environmentally Friendly ◽  
Plastic Waste ◽  
Fine Aggregate ◽  
Simultaneous Effect ◽  
Plastic Bottle ◽  
Maximum Compressive Strength ◽  
Test Objects

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.

scholarly journals Multicriteria Analysis of Glass Waste Application

2019 ◽  
Vol 23 (1) ◽  
pp. 152-167 ◽  
Author(s):  
Danguole Bisikirske ◽  
Dagnija Blumberga ◽  
Saulius Vasarevicius ◽  
Gintautas Skripkiunas
Keyword(s):  
Construction Industry ◽  
Multicriteria Analysis ◽  
Multicriteria Decision Making ◽  
Melting Process ◽  
Fine Aggregate ◽  
Glass Waste ◽  
Concrete Mixtures ◽  
Fine Aggregates ◽  
Concrete Production ◽  
Great Practice

Abstract Increasing amounts of glass waste present serious challenges in waste management to avoid environmental problems that might be created if it was to be deposited in landfills. Theoretically, glass waste is fully recyclable, but, if contaminated, containing impurities, broken or mixed colour, it makes the re-melting process impractical. A great practice of using secondary recycling material was reached by the construction industry involving glass waste in concrete mixtures as fine aggregates – reuse of waste glass in concrete production not only preserves natural resources, reduces greenhouse gas emissions, saves energy, furthermore, it may improve concrete sustainability and enhance the properties of concrete when used at the optimum quantity. In this study the container glass waste evaluation was performed, as well as experimental research of mechanical properties of four types of concrete mixtures containing glass waste as fine aggregate. The best alternative of replacement of sand by glass waste scenario in concrete production was determined, employing the multicriteria decision-making method TOPSIS.

scholarly journals Analisis Karakteristik Serbuk Sabut Kelapa (Cocopeat) Sebagai Agregat Halus pada Campuran Beton

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Hezliana Syahwanti ◽  
Irvhaneil Irvhaneil ◽  
Ranty Christiana
Keyword(s):  
High Resistance ◽  
Feasibility Analysis ◽  
Fine Aggregate ◽  
Normal Concrete ◽  
Concrete Mixtures ◽  
Fine Aggregates ◽  
Physical Form ◽  
Coarse Grains ◽  
Coconut Coir ◽  
Region Ii

The advantages of coconut coir powder (cocopeat) are resistant to microorganisms, weathering and resistant to mechanical spelling, namely friction and blows. Based on these advantages, cocopeat can be used as a blend of fine aggregates in the manufacture of concrete. The sieve test was conducted on the cocopeat to determine the initial feasibility analysis of cocopeat as a blend of fine aggregates in the concrete manufacturing. The results of the cocopeat sieve test are that cocopeat is included in Region II which is classified as a fine module of slightly coarse grains with a fine module of fine aggregate grains of 2.37. This shows that cocopeat has a fairly good value in normal concrete mixtures but is not suitable for high resistance concrete mixtures that exceed 25 MPa. This was followed by a subsidence test that gave subsidence values for mixtures of concrete with a cocopeat composition of 25%, 50% and 75%, is 7.5 cm; 5.3 cm; and 2.2 cm. While a good subsidence ratio is used in the range of 6-18 cm. In addition, the concrete with a 25% blend of cocopeat has a stronger physical form and there are no fungus growing on the surface of the concrete. Meanwhile, concrete with a mixture of 50% and 75% cocopeat looks more fragile and forms molds on the surface of the concrete. Thus the concrete with a mixture of 25% cocopeat has better results.

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 ANALISIS PENGARUH PENAMBAHAN IJUK 0,25% DAN 0,5% PADA CAMPURAN BETON fc’ 14,5 MPa (NON STRUKTUR)

2022 ◽  
Vol 5 (1) ◽  
pp. 77-82
Author(s):  
Yosi Haristha ◽  
Elfania Bastian
Keyword(s):  
Global Warming ◽  
Test Object ◽  
Organic Waste ◽  
Concrete Mixture ◽  
Normal Concrete ◽  
Concrete Mix ◽  
Materials Used ◽  
Test Objects ◽  
Over Time

Concrete is the majority of materials used in construction in Indonesia in general. Concrete mix innovations are needed so that concrete has better quality and quality. Innovation in concrete mixture one of them by using organic waste. In addition to improving quality, organic waste used is expected to reduce global warming. In Nagari IV Koto Palembayan ijuk from enau trees is not processed and left alone, so over time the ijuk can become waste. In this study discussed the effect of the addition of ijuk in the concrete mixture against the strong press of concrete. The targeted concrete press strong value is 14.5 MPa. The test object is made by varying the amount of ijuk addition in the concrete mixture by 0.25% and 0.5%. The test object used is a cylinder measuring 15cm in diameter and 30 cm high. Testing was conducted when the concrete was 7 days old, 14 days and 28 days old using 2 samples of test objects. The results showed a strong value of normal concrete press age of 28 days obtained at 15.57, while the strong value of additional concrete press ijuk 0.25% and 0.5% obtained by 19.82 MPa and 18.26 MPa. The results showed additional concrete ijuk 0.25% increased by 27.30% from the normal concrete press strength and the strong value of additional concrete press ijuk 0.5% also increased by 17.28% from the strong normal concrete press.

MARSHALL TEST CHARACTERISTICS OF ASPHALT CONCRETE MIXTURE WITH SCRAPPED TIRE RUBBER AS A FINE AGGREGATE

2017 ◽  
Vol 79 (2) ◽  
Author(s):  
Gito Sugiyanto
Keyword(s):  
Asphalt Concrete ◽  
Permanent Deformation ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Tire Rubber ◽  
Test Characteristics ◽  
Concrete Mixtures ◽  
Fine Aggregates ◽  
Marshall Test ◽  
Asphalt Content

Highways are important transportation infrastructures that influence economy, culture, and security. Most of the highways in Indonesia are flexible pavement that use asphalt as a binder. The use of scrapped tire rubber as a partial replacement of fine aggregates is based on the limited available natural aggregate in nature. Utilization of scrapped tire rubber as a fine aggregate is one of the alternatives for reducing environmental pollution and supporting Clean Development Mechanism program. The aim of this study is to analyze the Marshall test characteristics of asphalt concrete (AC) mixture that use scrapped tire rubber as a partial substitute of fine aggregate and comparing with a standard mixture. Laboratory tests are performed on three different types of mixtures as follows the mix without scrapped tire rubber, mix containing 50%, and 100% substitution of aggregate at fraction of No.50 with scrapped tire rubber. The test, it show that optimum asphalt content for ACStandard mixture is 6.76%, while ACScrapped-tire 50% mixture is 7.04% and ACScrapped-tire 100% mixture is 6.25%. The use of scrapped tire rubber in asphalt concrete mixtures can improve the resistance to permanent deformation and resistance to water. The use of scrapped tire rubber is acceptable as a partial replacement of aggregate in asphalt concrete mixtures.  

Sign in / Sign up

Export Citation Format

Share Document