PENGARUH PENAMBAHAN SERAT ALAMI ECENG GONDOK TERHADAP KUAT TEKAN BETON BERKUALITAS RENDAH

This research will be conducted in accordance with Indonesian Standard SK SNI and foreign standard ASTM. The test object consists of a cylindrical test with the diameter of 15 cm and a height of 30 cm, and it is developed to 4 mixture variations with the amount of 2%, 4%, 6%, 8%, of total cement. The mechanical properties of concrete is being tested include concrete compressive strength. Itis tested at the age of 7 days, and then converted at 28 days, using test objects mixed with different fiber variations. The results of the test are: compressive strength test with 2% variation is 7,54MPa, compressive strength testwith 4% variation is 6,74 Mpa, compressive strength with 6% variation is 4,58 Mpa, compressive strength with 8% variation is 3.63 MPa. Maximum concrete compressive strength occurs in 2% fiber mixture, while the minimum concrete compressive strength occurs in 8%. From these results, it can be concluded that the addition of water hyacinth fiber to the mixture for low quality concrete has not been able to increase its compressive strength.Keywords: Fiber, Water Hyacinth, Concrete Compressive Strength.

Download Full-text

Low Strength Self Compacting Concrete Compressive Strength Test

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.275-277.2041 ◽

2013 ◽

Vol 275-277 ◽

pp. 2041-2044

Author(s):

Feng Yan ◽

Nan Pang

Keyword(s):

Mechanical Properties ◽

Compressive Strength ◽

Compression Strength ◽

Strength Test ◽

The Self ◽

Concrete Compressive Strength ◽

Self Compacting Concrete ◽

Intensity Index ◽

Compressive Strength Test ◽

Low Strength

In this paper,the mechanical properties were studied,the self compacting concrete cubic compression strength,prismatic compressive strength test,discussed two kinds of relationship between intensity index.

Download Full-text

PENGARUH PENGGUNAAN LIMBAH PLASTIK POLYPROPYLENE (PP) SEBAGAI CAMPURAN AGREGAT KASAR TERHADAP KUAT TEKAN DAN TARIK PADA BETON FC’ 25 MPA

Jurnal Infrastruktur ◽

10.35814/infrastruktur.v3i2.706 ◽

2019 ◽

Vol 3 (2) ◽

pp. 81-89

Author(s):

Angga Pirman Firdaus ◽

Jonbi

Keyword(s):

Tensile Strength ◽

Compressive Strength ◽

Strength Test ◽

Plastic Waste ◽

Concrete Mixture ◽

Strength Testing ◽

Concrete Compressive Strength ◽

Tensile Strength Test ◽

Compressive Strength Test ◽

Waste Mixture

Indonesia ranks second in the world's largest plastic waste producer after China. Each year, Indonesia can contributeup to 187.2 million tons of plastic waste, while China reaches 262.9 million tons of plastic waste. Based on the data, one way to utilize plastic waste by using plastic waste as a mixture of concrete, where the plastic used is polypropylene (PP) plastic with different percentage of concrete mixture, the test includes compressive strength test and tensile concrete. The results of concrete compressive strength testing with polypropylene (PP) plastic waste mixture of 5%, 10% and 15% at age 28 in aggregate aggregate mixture decreased by 5.15%, 6.89% and 13.53%. As for the result of concrete tensile strength test with polypropylene (PP) plastic waste mixture of 5%, 10% and 15% at age 28 in crude aggregate mixture decreased 17,61%, 24,13% dan 23,24%.

Download Full-text

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

Jurnal CIVILA ◽

10.30736/cvl.v6i2.714 ◽

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.

Download Full-text

PENGARUH CANGKANG KEMIRI SEBAGAI PENGGANTI AGREGAT KASAR TERHADAP SIFAT MEKANIK BETON (EFFECT OF CANDLENUT SHELL AS SUBTITUTE COARSE AGGREGATE TO THE MECHANICAL PROPERTIES OF CONCRETE)

10.31227/osf.io/qdchj ◽

2018 ◽

Author(s):

Erniati Bachtiar

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Compressive Strength ◽

Coarse Aggregate ◽

Concrete Mixture ◽

Construction Technology ◽

Concrete Compressive Strength ◽

Coarse Aggregates ◽

Volume Weight ◽

Compressive Strength Test

Concrete construction technology is directed to be sustainable and ecofriendly. The waste of the candlenut shell as a substitute for the coarse aggregate of concrete mixture is known that the candlenut shell has a hard texture so it may be used as a substitute for coarse aggregates in concrete. The purpose of the research was to determine the effect of Candlenut shell as a substitute of coarse aggregate on physical properties (slump test, bleeding, segregation, volume weight) and mechanical properties (compressive strength and tensile strength) of concrete using Candlenut shell as replacement material of the coarse aggregate. The variation of the research was percentage of the Candlenut shell in the concrete mixture, that was 0%, 25%, 50%, 75% and 100% to the coarse aggregate volume in the concrete mixture. Number of specimens in reseach was each 5 pieces each variation. Testing of mechanical properties of concrete (compressive strength and tensile strength) was performed at 28 days. Testing of the concrete for compressive strength test and tensile strength on age 28 days. Concrete using candlenut shell as a substitute of coarse aggregates has decreased compressive strength respectively 11.72 MPa (37.71%) for 25% candlenut shell; 15.54 MPa (50.00%) for 50% candlenut shell; 18.35 MPa (59.02%) for 75% candlenut shell; And 18,85 MPa (60,66%) for 100% candlenut shell from of the 0% candlenut shell with compressive strength of 31.08 Mpa. Concrete using for 25% candlenut shell as a substitute for coarse aggregates decreased tensile strength respectively of 0.95 MPa (28.70%) for 25% candlenut shell; 1.21 MPa (36.56%) for 50% candlenut shell; 1.27 MPa (38.37%) for 75% candlenut shell; And 1.40 MPa (42.30%) for 100% candlenut shell from of the 0% candlenut shell with the tensile strength of BN of 3.31 MPa. The decrease in the value of compressive strength and tensile strength is strongly influenced by the increasing percentage of Candlenut shells on concrete

Download Full-text

KARAKTERISTIK SELF COMPACTING CONCRETE (SCC) TANPA CURING

10.31219/osf.io/69aqd ◽

2018 ◽

Author(s):

erniati

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Compressive Strength ◽

Fresh Concrete ◽

Strength Test ◽

Splitting Tensile Strength ◽

Good Resistance ◽

Self Compacting Concrete ◽

Compressive Strength Test ◽

Resistance Durability

Self Compacting Concrete (SCC) is one solution to get concrete construction which it has good resistance. Durability of concrete was obtained by the good concrete compaction to be done by a skilled workforce. However, one of the negligence that often occur in the field ie after casting they was ignoring curing of the hardening concrete. This study discusses the workability of fresh concrete and mechanical properties (compressive strength and splitting tensile strength) on SCC without curing. Testing of the concrete workability based on EFNARC standard. The mechanical properties test based on ASTM standards. The method Compressive strength test based on ASTM standards 39 / C 39M - 12a, whereas splitting tensile strength accordance standard ASTM C496 / C496M-11. The results of the study indicate that the SCC without curing effect on the reduction in compressive strength at ages 1, 3, 7, 28, and 90 days in a row at 4.11 MPa (16.1%); 4.90 MPa (13.9%); 6.64 MPa (13.1%); and 6, 72 MPa (12.75%). Splitting tensile strength decreased respectively by 0.1 MPa (3.25%); 0.26 MPa (7.99%); 0.4 MPa (9.52%); and 0.39 MPa (9.16%).

Download Full-text

PENGARUH SUBTITUSI LUMPUR SIDOARJO (LUSI) TERHADAP KUAT TEKAN BATA BETON (PAVING BLOCK)

Jurnal Teknika ◽

10.30736/jt.v13i2.476 ◽

2020 ◽

Vol 12 (2) ◽

pp. 89

Author(s):

Masbuhin Masbuhin

Keyword(s):

Compressive Strength ◽

Experimental Method ◽

Research Method ◽

Strength Test ◽

Mix Design ◽

Fine Aggregate ◽

Compressive Strength Test ◽

Preparation Stage ◽

Test Objects

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%.

Download Full-text

Compressive Strength of Sustainable Concrete Mixes with Different Maximum Size Aggregates

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.803.228 ◽

2019 ◽

Vol 803 ◽

pp. 228-232

Author(s):

Samer Al Martini ◽

Ziad Hassan ◽

Ahmad Khartabil

Keyword(s):

Mechanical Properties ◽

Compressive Strength ◽

Maximum Size ◽

Controlled Environment ◽

Concrete Compressive Strength ◽

Binary Blends ◽

Sustainable Concrete ◽

Concrete Mixtures ◽

Compressive Strength Test ◽

High Range

The current study investigates the effect of aggregate’s maximum size on the compressive strength of sustainable flowable concrete. The concrete mixtures were mixed for 2 hours under lab controlled environment. The purpose of the prolonged mixing was to simulate concrete in a transit truck during transportation to a construction site. The mechanical properties of the mixes were investigated through compressive strength test. Three groups of concrete mixes were prepared: the first one with 20 mm maximum size aggregates, the second group with 10 mm maximum size aggregates and third group with 5 mm max size. The concrete mixes incorporated GGBs and fly ash (FA) in binary blends. To maintain consistent initial slump for all mixes, polycarboxylate based high-range water-reducing admixture (HRWR) was used. The concrete compressive strength was measured at 1, 3, 7, and 28 days. The results showed that the mechanical properties of sustainable flow mixtures investigated were highly affected by FA, GGBS, and maximum size aggregates.

Download Full-text

Effect of specimen geometry and specimen preparation on the concrete compressive strength test

STRUCTURAL ENGINEERING AND MECHANICS ◽

10.12989/sem.2017.62.1.097 ◽

2017 ◽

Vol 62 (1) ◽

pp. 97-106 ◽

Cited By ~ 4

Author(s):

Farhad Aslani ◽

Lino Maia ◽

Jose Santo

Keyword(s):

Compressive Strength ◽

Strength Test ◽

Specimen Geometry ◽

Specimen Preparation ◽

Concrete Compressive Strength ◽

Compressive Strength Test

Download Full-text

Pengaruh Penambahan Superplasticizer Dan Abu Batu Sebagai Filler Untuk Meningkatkan Kuat Tekan Beton Normal

Menara: Jurnal Teknik Sipil ◽

10.21009/jmenara.v13i1.18919 ◽

2018 ◽

Vol 13 (1) ◽

pp. 10-17

Author(s):

Chairani Sabrina Mecha ◽

Tri Mulyono ◽

Prihantono Prihantono

Keyword(s):

Compressive Strength ◽

Strength Test ◽

Total Weight ◽

Concrete Compressive Strength ◽

Cement Concrete ◽

Compressive Strength Test ◽

Maximum Compressive Strength

The purpose of this research is to determine the Superplasticizer Sikament LN as a added of cement in compressive strength test in an effort to determine the maximum compressive strength of the concrete. This research was partially adding cement with Superplasticizer with a variety of percentages 0%, 0,5%, 1%, 1,5%, and 2% of the total weight of cement. Concrete design f’c 35 MPa, W/C 0.4, 12±2 cm slump, amount of sample was 30 (3 samples for each variation for concrete life of 7 and 28 days). The results showed that 0,5% variation of Superplasticizer reached the average concrete compressive strength is 43,5 MPa; 1% variation of Superplasticizer is 42,56 MPa; 1,5% variation of Superplasticizer is 40,86 MPa and 2% variation of Superplasticizer is 40,2 MPa. The maximum concrete compressive strength contained 0,5% variation of Superplasticizer.

Download Full-text