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All Journal eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Bangunan Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur)
Adjib Karjanto
Universitas Negeri Malang
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Engineering Industrial & Manufacturing Engineering

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Journal : Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur)

 1 
Pengaruh Bekas Tekukan pada Besi Beton Terhadap Lenturan Balok Karjanto, Adjib
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 1 (2018): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Abstract

In the world of construction, especially reinforced concrete work that uses concrete steel reinforcement, there are found bends of reinforced concrete iron which is straightened to be used as reinforcement for the concrete construction. This can be justified provided that it complies with the provisions of the applicable regulations in SKSNI. From the results of this study it was found that the iron beam experienced a bend there was an influence on the load carrying capacity it received. Beams with bends in the middle of the span experience greater bending than beams without bending bends. Furthermore, the beam with concrete iron that experienced one-quarter bending of the span stretched the second place in receiving the load compared to the beam that experienced iron bending in the middle. Next the concrete beam with bending in a quarter span on both sides also experienced a decrease in the strength of its carrying capacity against the load it received. From the whole study, the normal beam load (BN) of 28.00 kN was obtained with a flexing of 5.28 mm. Whereas for concrete beams with several types of iron with bending the average deflection is 9.65 mm with the same load of about 35.33 kN.
Uji Perbaikan Retakan Dinding Akibat Geser dengan Kawat Ayam Fauziah, Rizkya Imro?atul ; Karjanto, Adjib; Djatmika, Boedya
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 1 (2018): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Abstract

The wall is designed as a non-structural filler component but is used as a support load on it. When exposed to high earthquake vibrations, there will be diagonal cracks accompanied by a reduction in strength because Indonesia is a country that has the potential to cause earthquakes. There needs to be repairs and reinforcement on the damaged part, one of which is using a chicken wire reinforcement. This study used experimental descriptive with test specimens in the form of brick wall measuring 50 cm x 50 cm, thickness of 14 cm, and in the middle of plaster planted chicken wire. In the crack gap was given mortar. The result of study are (1) test of shear diagonal strength of brick wall without reinforcement of chicken wire obtained a mean value of 1,16 kg / cm2; (2) test of shear diagonal strength of brick wall with chicken wire strengthening obtained a mean value of 1,21 kg / cm2; (3) test of shear diagonal strength of brick wall repair with reinforced chicken wire obtained a mean value of 4.04 kg / cm2; and (4) there was significant different score at ? = 0,05 of brick wall without reinforcement, with reinforcement, and repair with chicken wire strengthening.  
Uji Kekuatan Dinding Batu Bata dengan Spesi yang Bervariasi Menerima Beban Tekan Terpusat Firmansyah, Revaldo; Karjanto, Adjib; Djatmika, Boedya
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 1 (2018): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Abstract

Generally, bricks are used as building structural wall materials and dwelling. This study aims to find out the strength of the brick wall pairs when receiving a lumped load of the roof structure of a mixture commonly used by the community is 1 PC: 8 Sand and 1 PC : 10 Sand so as to avoid cracks in the wall due to the roof structure load. This test used  local bricks from Tumpang Malang with Model M-6B 230 mm x 110 mm x 55 mm. Another materials obtained from the building store in Malang City. The testing method used is SNI 03-4166-1996 robust test procedure for compressing red brick. The test method used is SNI 03-4166-1996 about the test procedure of compressive strength of red brick masonry wall. The dimensions of specimens is 75 x 64 cm as much as 3 samples of each thickness variation, where the thickness variation is 3 cm, 4 cm, and 5 cm so that the number of sample objects test all 18 specimens. Further test object tested press using UTM according SNI 03-4166-1996. The result showed that the average compressive strength of brick masonry wall was 1 PC : 8 Sand on variation of thickness of 3 cm, 4 cm, 5 cm, respectively by 8.26 kg/cm2, 7.63 kg/cm2, 7.4 kg/cm2. The average compressive strength of brick masonry wall of 1 PC : 10 Sand on variation in thickness of 3 cm, 4 cm, 5 cm, respectively by 8.11 kg/cm2, 6.91 kg/cm2, 6.46 kg/cm2.
Uji Kuat Tekan dan Uji Kuat Tarik Beton Dengan Agregat Kasar dan Halus dari Sumba Barat Daya pada Mutu Beton = 19,3 MPa Lolo , Wilfridus Muri ; Karjanto , Adjib; Ningrum, Diana
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 2 (2019): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Abstract

The use of fine aggregates and coarse aggregates in Southwest Sumba Regency as composers of concrete mixes for construction work in general is still dependent on sea sand and natural gravel (mountain rocks) whose potential is quite large. This research aims to; 1) knowing the characteristics of sea sand and natural gravel (mountain rocks) of West Sumba 2) knowing the compressive strength of concrete and tensile strength produced from sea sand and natural gravel (mountain rocks) Southwest Sumba; This study is a sample-based laboratory study and analysis of the characteristics of aggregate and compressive tests. Southwest Sumba aggregates generally meet the requirements for testing aggregate characteristics. Southwest Sumba sea sand with equipment modulus 3,214 and entering zone 2 (sand somewhat coarse) and coarse aggregate (Southwest Sumba gravel) with fineness modulus 4.65 and entering zone.40 mm. The highest compressive strength of concrete from the age of the concrete to the end is obtained from Southwest Sumba sea sand with a compressive strength of 17,486 MPa (7 days concrete age), 26,901 MPa (28 days concrete age).
Perkuatan pada Balok Beton Berlubang di Daerah Tekan yang Mengalami Lenturan dengan Mortar Geoplimer Karjanto , Adjib; Djatmika, Boedya; Susanto, Prijono Bagus
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 2 (2019): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Abstract

In its development, changes in building functions often occur so as to require flexible bending of building functions, ways are needed to provide reinforcement or repairs to hollow beams. One method in strengthening or repairing hollow beams is the grouting method. Grouting using geopolymer material has the advantage of great strength and faster setting time. These geopolymer properties are very suitable for grouting methods that require fast setting times and small shrinkage. In this study the test uses a beam measuring 100 X 20 X 15 cm with 10 M NaOH molarity Comparison of the activator, as well as the location and number of holes, 2 points in the bending area to determine the flexural strength and condition of the concrete after reinforcement (grouting). Where in this study used 9 pieces of reinforced concrete beams (3 normal beams, 3 porous beams, 3 reinforced beams). Normal beams have an average bending capacity of 149.777 kg / cm2, while hollow beams have an average bending capacity of 118.36 kg / cm2, and repaired / grouting beams have an average bending capacity of 139.022 kg / cm2. There is a difference in the average flexural capacity in normal beams of 149.777 kg / cm2 in hollow beams of 118.36 kg / cm2, which has a difference of 31.41 kg / cm2 (20.97%). There is a difference in the average flexural capacity in the grouting beam of 139.022 kg / cm2 in the hollow beam of 118.36 kg / cm2, which has a difference of 20.66 kg / cm2 (14.86%). In a statistical analysis with a significance of 0.05 there was no significant difference in flexural strength in reinforced concrete grouting blocks 131.11 kg / cm2 against normal beams, 149.77 kg / cm2 had a difference of 10.755 kg / cm2 in a percentage of 7.19%.
Co-Authors Lolo , Wilfridus Muri Bala, Yosep Boedya Djatmika Diana Ningrum, Diana Fauziah, Rizkya Imro?atul Firmansyah, Revaldo Galih Damar Pandulu Gede Agung Shri Parta maia, Jaime ximenes soares Nawir Rasidi Nindi Fakhrunisa Nindyawati Nindyawati Susanto, Prijono Bagus Wahyo Hendarto Yoh Wiyono, Adi