scholarly journals Experimental Study of Compressive Strength of Lightweight Concrete Using Wood Charcoal

2021 ◽  
Vol 328 ◽  
pp. 10006
Author(s):  
Daud Andang Pasalli ◽  
Dina Limbong Pamuttu ◽  
Rahmat Fajar Septiono ◽  
Chitra Utary ◽  
Hairulla Hairulla
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Rapid Development ◽  
Volume Ratio ◽  
Wood Charcoal ◽  
Compressive Strength Test ◽  
Compressive Strength Of Concrete ◽  
Concrete Materials

The use of lightweight concrete materials in Indonesia, especially in the Merauke Regency area can be an alternative amid the rapid development of the housing sector. In this experimental study, the author took the initiative to replace coarse aggregate with wood charcoal as light coarse aggregate. The purpose of this study was to determine the value of compressive strength and to determine whether the wood charcoal material met the standard of lightweight concrete coarse aggregate. Planning the proportion of lightweight concrete mixture in this study using a volume ratio between cement, sand and wood charcoal of 1: 2, 1: 2: 2.5 and 1: 2: 5 with variations of test days at 3, 7, 14, 21 and 28 day. From the results of the compressive strength test of lightweight concrete, the use of wood charcoal aggregate as coarse aggregate in concrete causes the value of the compressive strength of concrete to decrease.

scholarly journals THE EFFECT OF ADDING CEMENT WASTE ON THE QUALITY OF CONCRETE COMPRESSIVE

Jurnal CIVILA ◽  
2021 ◽  
Vol 6 (2) ◽  
pp. 213
Author(s):  
Asrul Majid ◽  
Hammam Rofiqi Agustapraja
Keyword(s):  
Compressive Strength ◽  
Strength Test ◽  
Fine Aggregate ◽  
Infrastructure Development ◽  
Test Results ◽  
Compressive Strength Test ◽  
Compressive Strength Of Concrete ◽  
Concrete Materials ◽  
Test Objects

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.

scholarly journals The use of grinded andesite-sand and foaming-agent to improve the porosity of foam-concrete

2018 ◽  
Vol 195 ◽  
pp. 01018
Author(s):  
Rommel Erwin ◽  
Rusdianto Yunan ◽  
Dawara Kiki Ruris ◽  
Eddy S Tri
Keyword(s):  
Compressive Strength ◽  
Lightweight Concrete ◽  
Foam Concrete ◽  
Foaming Agent ◽  
Compressive Strength Test ◽  
Concrete Type ◽  
Compressive Strength Of Concrete ◽  
Porosity Measurements ◽  
Highly Porous ◽  
High Absorption

There has been an increase in the demand for the use of green concrete in construction. Foam concrete is a lightweight concrete type that has the characteristics of being lightweight, low-strength, highly porous with a high absorption rate and with good insulation properties. The use of sand smoothed andesite in the manufacture of foam concrete is expected to improve the properties of porous concrete and make it more suitable for use. In this study, 120 mortar cubes with the size of 5 cm was used for the density testing, compressive strength testing and porosity testing of foam concrete. Foam concrete is made by mixing cement, sand andesite of 1:2.75 and w/c 0.7 and a foaming agent, which are respectively 1%,2%, 3%, and 4%. Porosity measurements with the soaking method and the concrete compressive strength test were performed, respectively at the age of 7, 14, 21, and 28 days. The results showed that the increase in use of a foaming agent will cause a reduction in the density and the compressive strength of the concrete. While the porosity of foam concrete which is measured at the "volume of permeable void" will increase with the decreasing density and compressive strength of concrete.

scholarly journals STUDY ON THE EFFECT OF POLYETHYLENE TEREPHTHALATE COMPRESSIVE STRENGTH OF CONCRETE

Neutron ◽  
2020 ◽  
Vol 19 (2) ◽  
pp. 73-81
Author(s):  
Umi Latifah ◽  
Syafwandi
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Mineral Water ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Waste Plastics ◽  
Loading Test ◽  
The World ◽  
Compressive Strength Of Concrete ◽  
Mechanical Nature

Plastic waste is the largest contributor in the world and belongs to the class of materials that can not be broken down by organisms (non-bio-degradable) and durable (persistent) which does not rot. It can be seen directly from this waste that is lightweight and not easily deformed. Terephthalate polyethylene plastic types are widely used as mineral water bottles can be recycled as coarse aggregate for lightweight concrete manufacture. In this study, carried out the loading test compressive strength. To determine the properties of lightweight concrete, tested the modulus of elasticity, compressive strength, and strong Pull. The physical and mechanical nature of light concrete in the use of waste plastics PET instead of coarse aggregate must be following existing regulations. The compressive strength of concrete with the highest in the age of 28 daycare that is equal to 23.973 MPa. The highest tensile strength value contained in the concrete to the age of 28-day care is equal to 2,782Mpa.

An Experimental Study on the Development of Structural Lightweight Concrete Using Micro Foam Agents

2007 ◽  
Vol 348-349 ◽  
pp. 469-472 ◽  
Author(s):  
Jin Young Choi ◽  
Han Seung Lee ◽  
Byung Kwon Lee
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Specific Gravity ◽  
Lightweight Concrete ◽  
Basic Data ◽  
Compressive Strength Of Concrete

The purpose of this study is to obtain basic data on the properties of the development of lightweight concrete containing a foam agent for various applications. This experiment confirmed that compressive strength increased specific gravity, by changing the foam agent into a variable and measuring the compressive strength of concrete.

Experimental Study on Gap-Graded Concrete Mixing Uniformity

2013 ◽  
Vol 857 ◽  
pp. 42-50
Author(s):  
Hai Peng Gao ◽  
Bo Tian ◽  
Zi Yi Hou
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Relative Error ◽  
Unit Volume ◽  
Coarse Aggregate ◽  
Mixing Time ◽  
Mixing Process ◽  
Stirring Time ◽  
Compressive Strength Of Concrete

Combining with the concrete mixing process of twin-shaft mixer, this paper studied the gap-graded concrete mixing uniformity variation under different time. The study found that: under different mixing time, the relative error of coarse aggregate weight in per unit volume decreases, the compressive strength of concrete specimens change from increase to decrease, and they respectively reach the minimum and maximum at 40s, according to this, we get to optimum stirring time is 30~40s; Torque can reflect the condition of concrete mixing to a certain extent, but when the torque becomes stable, it does not stand for the uniformity of concrete mixing, keep stirring about 8s, the concrete mixing will be uniform completely.

scholarly journals PENGGUNAAN VARIASI UKURAN DIAMETER BUTIR MAKSIMUM AGREGAT KASAR TERHADAP KUAT TEKAN BETON

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Aiyub Aiyub
Keyword(s):  
Compressive Strength ◽  
Test Specimen ◽  
Coarse Aggregate ◽  
Test Results ◽  
Modified Method ◽  
Gravel Size ◽  
Compressive Strength Test ◽  
Compressive Strength Of Concrete ◽  
Cylindrical Test ◽  
Grain Diameter

This study aims to determine the use of variations in the size of the maximum grain diameter of coarse aggregate on compressive strength of concrete with fas 0.45 by cylindrical test specimen size 15 x 30 cm. Planning mix desing using a modified method of ACI with fas value of 0.45 and the value of the planned 75-100 mm slump. This study includes compressive strength performed at age 7 days and 28 days, treatment is normally carried out with care marinade soaked in the tub for 7 days and 28 days. Compressive strength test results obtained in the test specimen 7 days old premises gravel size is 20.50 Mpa 12.5 mm, 19 mm, 16.99 MPa, 16.76 MPa is 25 mm and 31.5 mm was 14.57 Mpa , while the age at 28 days was 30.51 MPa 12.5 mm, 19 mm, 24.86 MPa, 21.85 MPa is 25 mm and 31.5 mm was 21.66 Mpa. So the smaller the aggregate maximum compressive strength used was obtained by the higher and conversely the greater the maximum aggregate used dihasikan compressive strength lower. keywords: compressive strength, maximum grain diameter

scholarly journals Investigation of the Effect of using Salak Seeds as Coarse Aggregate in Concrete

2021 ◽  
Vol 9 (3) ◽  
Author(s):  
Andi Sulfanita ◽  
Gufran Darma Dirawan ◽  
Muhammad Ichsan Ali
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Quantitative Study ◽  
Design Of Experiment ◽  
Coarse Aggregate ◽  
Concrete Mixture ◽  
Green Concrete ◽  
Slump Test ◽  
Compressive Strength Of Concrete

This study described the effect of using salak seed waste as a substitute for coarse aggregate. The percentage of salak seed in concrete mixture became experimental variable to discover the best compressive strength of concrete. Quantitative study with experimental study was carried out at the Laboratory of Materials and Concrete, Faculty of Engineering, University. The design of experiment used a designed compressive strength of concrete of 20 Mpa. The experiment consisted of five variations in the percentage of salak seeds, namely 0%, 5%, 10%, 15%, and 20%. The slump test is carried out immediately after mixing the concrete in each proportion. Furthermore, 20 pieces of cylindrical concrete samples in each treatment were tested for 7,14,21 and 28 days. This method aims to compare the strength of each of the resulting concrete compositions. The results obtained showed that the use of salak seeds with a percentage of 5% and 10% gave a compressive strength value of 28 days which met the standard compressive strength of the design female. Meanwhile, the percentage of salak seeds 15% and 20% did not produce the planned compressive strength value. Therefore, salak seeds are suitable to be used as a substitute for coarse aggregate with a percentage of less than 10%. The higher the substitution of the mixture in the salak seed concrete, the lower the compressive strength of the concrete. The results of this study can be developed in green concrete studies that use waste.

scholarly journals BETON BERMUTU DAN RAMAH LINGKUNGAN DENGAN MEMANFAATKAN LIMBAH ABU BAN BEKAS

2021 ◽  
Vol 2 (2) ◽  
pp. 141-149
Author(s):  
Johan Oberlyn Simanjuntak ◽  
Tiurma Elita Saragi ◽  
Ros Anita Sidabutar ◽  
Humisar Pasaribu ◽  
Rido Parulian Simbolon
Keyword(s):  
Compressive Strength ◽  
Coarse Aggregate ◽  
Construction Material ◽  
Fine Aggregate ◽  
Normal Concrete ◽  
Compressive Strength Test ◽  
Cement Additive ◽  
Long Time ◽  
Compressive Strength Of Concrete ◽  
Day By Day

The need for housing is increasing day by day. This is a factor in the visit to the need for concrete as a housing construction material. The more concrete that is produced, the more cement is needed for the construction. Concrete is a composite material (mixture) of several materials, the main ingredient of which consists of a mixture of cement, fine aggregate, coarse aggregate and water. Utilization of waste tire ash in the concrete mix is one of the alternative uses so that ic can ultimately increase the efficiency of cement savings which takes a long time to increase in high prices. With reference to this, this study uses used waste as a cement additive with a mixture composition of 0%, 3%, 6% and 9%. The test specimens were made using a cylinder with a diameter of 15 cm and a height of 40 cm with 48 specimens produced. The results of the compressive strength test of normal concrete (25.45 MPa), while the concrete with a mixture of 3% used tire ash (28.15 MPa), 6% used tire ash mixture (23.46 MPa) and 9% used tire ash mixture (18.60 MPa). From this research, it can be said that compressive strength of concrete using 3% ash produces the greatest compressive strength of 28.15 MPa.

scholarly journals Pengaruh Variasi Bentuk Potongan Agregat Bambu Petung Terhadap Berat Jenis dan Kuat Tekan Beton Ringan

2019 ◽  
Vol 8 (2) ◽  
pp. 71-79
Author(s):  
Yoga Putra Darmansyah ◽  
Farlin Rosyad
Keyword(s):  
Compressive Strength ◽  
Specific Gravity ◽  
Test Object ◽  
Test Specimen ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Compressive Strength Of Concrete ◽  
Maximum Compressive Strength ◽  
Dendrocalamus Asper ◽  
Test Objects

The use of bamboo as an aggregate substitution is an effort to reduce the specific gravity of concrete, especially in the production of lightweight concrete. The use of bamboo material has the consequence of decreasing the compressive strength value of concrete. This study aims to determine the magnitude of the effect of the use of bamboo substitution on concrete on the compressive strength and specific gravity values. The bamboo material used is sized 15-30 mm in various shapes. The type of bamboo used is petung bamboo (Dendrocalamus Asper). As for the variations in the use of bamboo in the test specimens are 50% and 75% pieces of bamboo of the same shape, 50% and 75% pieces of bamboo form variations, of the weight of coarse aggregate. The research sample is in the form of a cube test object with a size of 15 cm x 15 cm x 15 cm. Based on the results of the study there was a decrease in the value of the concrete mortar slump along with the addition of the percentage of bamboo aggregate substitution. Concrete absorbs water which is indicated by an increase in water absorption in concrete test specimens which reaches 4.81%. The decrease also occurs in the specific gravity and compressive strength of the test specimen. The minimum value of average concrete density with bamboo substitution for various variations was obtained at 1902.2 kg/m3 (Bamboo Test Objects with Variation Shape 75%), and a maximum of 1991.1 kg/m3 (Bamboo Test Objects with 50% Equal Shape and Objects Bamboo Test Variation in the Form of 50%). The maximum compressive strength value is 135.1 kg/cm2 (Bamboo Test Objects of the Same Shape of 50%) and a minimum of 104.4 kg/cm2 (Bamboo Test Objects of 75% Variation Shape). Variations in the shape of bamboo pieces do not have much effect on the compressive strength of concrete.

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