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.

Utilization of Cockle Shell (Anadara Granosa) as Partial Replacement of Fine Aggregates in Concrete

2021 ◽  
Vol 6 (2) ◽  
pp. 96-103
Author(s):  
Ranno Marlany Rachman ◽  
Try Sugiyarto Soeparyanto ◽  
Edward Ngii
Keyword(s):  
Compressive Strength ◽  
National Standard ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Concrete Compressive Strength ◽  
Concrete Technology ◽  
Normal Concrete ◽  
Fine Aggregates ◽  
Blood Clam ◽  
Anadara Granosa

This research aimed to utilize Anadara Granosa (Blood clam shell) clamshell waste as a new innovation in concrete technology and to investigate the effect of Anadara Granosa clamshell powder utilization as an aggregate substitution on the concrete compressive strength. The sample size was made of cylinders with a size of 10 cm x 20 cm with variations of clamshell powder 10%, 20% and 30% from the fine aggregate volume then soaked for 28 days as per the method of the Indonesian National Standard. The evaluation results exhibited that the slump value exceeded the slump value of normal concrete with a slump value of 0% = 160 mm, 10% = 165 mm, 20% = 180 mm and 30% = 180 mm. Additionally, it was found that the concrete compressive strength obtained post 28 days were 20.78 Mpa, 21.95 Mpa, 21.17 Mpa and 24.28 Mpa for normal concrete (0%), substitution concrete (10%), substitution concrete (20%) and substitution concrete (30%), respectively. Leading on from these results, it was concluded that the increment of Anadara Granosa clamshell powder substitution led to the increase of concrete compressive strength test.

Recycling of Waste Limestone as Fine Aggregate for Conventional and Green Concretes

2018 ◽  
Vol 928 ◽  
pp. 257-262 ◽  
Author(s):  
Trong Phuoc Huynh ◽  
Chao Lung Hwang ◽  
Si Huy Ngo
Keyword(s):  
Ultrasonic Pulse Velocity ◽  
Ultrasonic Pulse ◽  
Pulse Velocity ◽  
Concrete Mixture ◽  
Engineering Properties ◽  
Fine Aggregate ◽  
Normal Concrete ◽  
Design Algorithm ◽  
Green Concrete ◽  
Concrete Mixtures

This paper presents the results of the experimental works to investigate the use of waste limestone from water treatment industry as fine aggregate in green concrete. Two concrete mixtures with a constant water-to-binder ratio of 0.3 were prepared for this investigation, in which, the normal concrete mixture was designed following the guidelines of ACI 211 standard, while the green concrete mixture was designed using densified mixture design algorithm (DMDA) technology. For comparison, both types of concrete samples were subjected to the same test program, including fresh properties, compressive strength, strength efficiency of cement, drying shrinkage, electrical surface resistivity, ultrasonic pulse velocity, and thermal conductivity. Test results indicate that both concrete mixtures showed the excellent workability due to the round-shape of waste limestone aggregate and the use of superplasticizer. In addition, the green concrete mixture exhibited a better performance in terms of engineering properties and durability in comparison with the normal concrete mixture. The results of the present study further support the recycling and reuse of waste limestone as fine aggregate in the production of green concrete.

The Behaviour of Rubber Tyre as Fine Aggregate in Concrete Mix

2015 ◽  
Vol 754-755 ◽  
pp. 427-431
Author(s):  
Shamshinar binti Salehuddin ◽  
Nur Liza Rahim ◽  
Norlia Mohamad Ibrahim ◽  
Siti Aza Nurdiana Tajri ◽  
Mohd Zuhaidi Zainol Abidin
Keyword(s):  
Water Absorption ◽  
Concrete Mixture ◽  
Fine Aggregate ◽  
Rubberized Concrete ◽  
Compression Tests ◽  
Normal Concrete ◽  
Alternative Source ◽  
Fine Aggregates ◽  
Three Samples ◽  
Water Absorption Test

Usage of waste materials as concrete mixture can reduce the waste management crisis in the world. Used tyres were widely researched as an alternative source of aggregates replacement in concrete mixture. This research is to study the behaviour of concrete incorporating rubber tyre crumb as fine aggregate replacement. The workability, compression strength and water absorption of this concrete will be determined and then compared to normal concrete. Motorcycle inner tube will be used as rubber source and it will be shredded to crumbs. Three samples of concrete with rubber as fine aggregates were prepared. Rubber crumbs will be used to replace fine aggregates in 2.5, 5.0 and 7.5% in mass. Normal concrete were prepared separately as control for comparison. Concrete mixture of 1:2:4 and 0.5 of water cement ratio were used. Slump test were done to test the workability of each mix. Twelve sample cubes from (150mm x 150mm x 150mm) each mix were prepared and cured for 7, 14 and 28 days. Compression tests were performed for each mix cube at age 7, 14 and 28 days. Water absorption test were done at age 28 days. Results revealed that rubberized concrete has better workability than normal concrete. They also have smaller compressive value and higher water absorption compared to normal concrete.

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 Synergistic Effect of Marble Powder and Green Sand on the Mechanical Properties of Metakaolin-Cement Concrete

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 476 ◽  
Author(s):  
Sakthieswaran Natarajan ◽  
Priyanka Murugesan
Keyword(s):  
Fine Aggregate ◽  
Cement Concrete ◽  
Green Sand ◽  
Normal Concrete ◽  
Fine Aggregates ◽  
Binder Ratio ◽  
Microscopic Studies ◽  
Marble Powder ◽  
Hardened State ◽  
Strength And Durability

The aim of this paper is to study experimentally the effect of marble powder and green sand as partial substitute for fine aggregate on the strength and durability of M40 grade concrete. The use of metakaolin as a pozzolanic admixture by using as binder replacement is also studied to assess the properties with respect to fresh and hardened state. Several formulations were prepared with constant water-binder ratio 0.4 and varying percentages of marble powder and green sand. The results indicated that the properties of concrete were much enhanced by extent incorporation of marble powder and green sand as fine aggregate and metakaolin for cement when compared to normal concrete. The microscopic studies also confirmed the viability of using green sand and marble powder as fine aggregates.

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.

Effect of Stone Ash Mixture and Coconut Fiber on Concreate Compressive Strenght

2020 ◽  
Vol 6 (4) ◽  
pp. 462-471
Keyword(s):  
Compressive Strength ◽  
Laboratory Tests ◽  
Concrete Compressive Strength ◽  
Coconut Fiber ◽  
Normal Concrete ◽  
Strength Concrete ◽  
Coarse Aggregates ◽  
Concrete Mixtures ◽  
Fine Aggregates ◽  
Coconut Fibers

Abstract: The composition of the concrete mixture determines the compressive strength. Concrete mixtures generally consist of cement, water, coarse aggregates, fine aggregates, and concrete drugs. In this study, it will be tried to mix stone ash and coconut fibers. The purpose of this study is to find out the concrete compressive strength with add stone ash and coconut fibers to normal concrete. Data was collected through laboratory tests by carrying out an additional mixture of stone ash and coconut fibers. There were six types of specimens produced which were measured for 7, 14, 21, and 28 days. Variation of specimens 1) normal concrete, 2) normal concrete + stone ash, 3) normal concrete + coconut fiber (1.5%), 4) normal concrete + stone ash and coconut fiber (1.5%), 5) normal concrete + stone ash and 1% coconut fiber, 6) normal concrete + 1% coconut fiber. From the results of testing the concrete compressive strength was obtained 455 kg/cm2 for the age of concrete for 28 days with a mixture of normal concrete + stone ash.

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.  

scholarly journals THE EFFECT OF COMPARISON OF CONCRETE USING TANGKILING SAND AND KAPUAS SAND ON THE COMPRESSIVE STRENGTH OF CONCRETE

2020 ◽  
Vol 8 (1) ◽  
pp. 36-41
Author(s):  
Whendy Trissan ◽  
Yongki Pratomo
Keyword(s):  
Compressive Strength ◽  
Total Sample ◽  
Concrete Mixture ◽  
Fine Aggregate ◽  
Concrete Compressive Strength ◽  
Normal Concrete ◽  
Study Program ◽  
Fine Aggregates ◽  
Compressive Strength Of Concrete ◽  
Building Engineering

In general, concrete fillers are made from materials that are easily obtained, easily processed, and have the durability and strength that is very much needed in particular construction of coarse and fine aggregates, each region would have different aggregates as the main ingredients in making concrete. The research conducted aims to determine how the optimum compressive strength value of the concrete produced from the addition of Kapuas Sand to the concrete mixture. In this research, Kapuas Sand is used as a fine aggregate enhancer. The percentage variation of Kapuas red sand used in this study varies, namely 0%, 25%, 50%, 75%, and 100%. Concrete mixture planning using SNI 03-2834-2000. The test uses cylindrical specimens with a height of 30 cm, a diameter of 15 cm with a total sample of 10 cylinders for each addition of Kapuas Sand so that the total specimens are 50 cylinders. Testing is carried out at the age of 14 and 28 days in the Laboratory of Building Engineering Education Study Program, Faculty of Teacher Training and Education, University of Palangka Raya. The results of the compressive strength of concrete using a mixture of Kapuas Sand at 28 days 0% 25%, 50%, 75% and, 100% respectively were 24.71 MPa, 21.79 MPa, 25.36 MPa, 23 .3 MPa, and .22.62 MPa. This result shows the compressive strength value of concrete in the concrete mix with a percentage of 50% that is equal to 25.36 MPa while the compressive strength of normal concrete is 24.71 MPa so that the compressive strength of concrete is 2.66% of normal concrete compressive strength with age concrete compressive strength 28 days.

scholarly journals The effectiveness of waste oyster shells (WOS) as major fine aggregate replacement in concrete

2021 ◽  
Vol 261 ◽  
pp. 02014
Author(s):  
Xinglu Cai ◽  
Ruiwen Liu ◽  
Junhao Fan ◽  
Yingdi Liao
Keyword(s):  
Cost Efficiency ◽  
Environmental Issues ◽  
Strength Properties ◽  
Fine Aggregate ◽  
River Sand ◽  
Sustainability Performance ◽  
Concrete Mixtures ◽  
Fine Aggregates ◽  
Concrete Production ◽  
Over Exploitation

Over-exploitation of natural river sand and waste oyster shells (WOS) dumped randomly will cause serious environmental issues. Thus, a drive to using crushed WOS as fine aggregates to substitute river sand in concrete production has been initiated. This paper conducted experimental research to study the possibility of employing the crushed WOS as 100% fine aggregates in concrete. The workability, compressive strength and its size-effect, and sustainability performance of the concrete mixtures were investigated. The results indicated that, under the same water-cement ratio, the WOS concrete showed a great improvement in strength properties while a decline was found in slump tests, compared to the control concrete. Besides, the use of the crushed WOS in concrete production resulted in a modification in both eco-efficiency and cost-efficiency.

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