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REVIEW KARAKTERISTIK MEKANIK DAN TOXICITY CHARACTERISTIC LEACHING PROCEDURE BETON GEOPOLIMER Ibnu Jamil Khairi; L. Oksri-Nelfia; Bambang Endro Yuwono; Pratama Haditua Reyner Siregar
Jurnal Infrastruktur Vol 6 No 2 (2020): Jurnal Infrastruktur
Publisher : Jurnal Infrastruktur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/infrastruktur.v6i2.1582

Beton Geopolimer merupakan beton yang menggunakan material anorganik produk sampingan hasil limbah padat industri yang disintesis melalui proses polimerisasi seperti fly ash, terak besi, terak nikel, dan material lainnya yang mengandung unsur Alumunium (Al) dan Silika (Si) yang tinggi. Produksi 1 ton semen Portland menghasilkan emisi gas CO2 sebesar 1 ton ke atmosfer sehingga dapat membahayakan lingkungan seperti pemanasan global. Tujuan dari studi literatur ini adalah untuk menunjukan bagaimana karakteristik mekanik pada beton geopolimer dalam penggunaan 100% produk sampingan limbah industri (ferrous dan non-ferrous) sebagai pengganti semen Portland sepenuhnya pada beton konvensional, serta meninjau dampak lingkungan yang ditimbulkan akibat penggunaan limbah tersebut dengan menggunakan analisis TCLP. Toxicity Characteristic Leaching Procedure (TCLP) merupakan prosedur untuk mengetahui kadar logam berat pada produk sampingan limbah industri (ferrous dan non-ferrous) yang dapat larut dan dapat mencemari lingkungan. Studi pustaka yang membahas material anorganik mengenai beton geopolimer secara holistik masih sedikit. Beberapa faktor yang dapat memengaruhi karakteristik mekanik beton geopolimer antara lain proporsi campuran, penggunaan admixture, pemilihan material anorganik, metode perawatan dan durasi perawatan, dan rasio larutan alkali sebagai aktivator. Proporsi campuran yang tepat dapat menghasilkan workability yang baik, kuat tekan, dan kuat tarik belah yang tinggi. Metode dan durasi perawatan dengan pemanasan (oven curing) mampu menghasilkan kekuatan mekanik yang lebih besar dibanding dengan metode perawatan suhu ruangan. Studi literatur ini diharapkan dapat memberikan pedoman dalam pengembangan beton geopolimer kedepannya bagi para peneliti dan industri.

AIR POLLUTION PREDICTION MODELS DUE TO TRAFFIC VOLUME AND GREEN OPEN SPACE AVAILABILITY Bambang Endro Yuwono; Mayang Sari
International Journal on Livable Space Vol. 5 No. 1 (2020): QUALITY OF PLACE AND SPACE
Publisher : Jurusan Arsitektur - FTSP - Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/livas.v5i1.6497

ABSTRACT As the population grows, the development of the city increases, as a result the movement of transportation also increases. The development of the city can also affect a decrease in green open space. Increased vehicle traffic affects the increase in air pollution. Hence, there is very little research that mathematically connects the influence of traffic volume (passenger car units) and green open space with the level of air pollution. Green open space and the level of air pollution are directly measured on the field. Subsequently, the measurement is calculated by using the regression analysis to obtain a model of the relationship between green open space and traffic volume with the level of air pollution. The research was directly conducted at 3 locations, 2 locations in Jakarta (Semanggi and Tanah Kusir) and 1 location in South Tangerang. This model can be applied to predict that air pollution will occur as a result of traffic volume and the availability of green open space. Keyword: Air pollution, prediction, green open space, traffic volume

PENGARUH PENGGUNAAN ASURANSI CONTRACTOR ALL RISK TERHADAP PENGALIHAN POTENSI RISIKO PADA PROYEK KONSTRUKSI Tania Agustin Eka Putri; Bambang Endro Yuwono
PROSIDING SEMINAR NASIONAL CENDEKIAWAN Prosiding Seminar Nasional Cendekiawan 2017 Buku II
Publisher : Lembaga Penelitian Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/semnas.v0i0.2218

Pelaksanaan proyek konstruksi akan menimbulkan berbagai macam risiko selama pengerjaannya, sehingga diperlukan suatu manajemen risiko untuk mengurangi dan mentransfer risiko yang akan terjadi selama pekerjaan proyek konstruksi berlangsung. Salah satu alternatif pengalihan risiko guna mengurangi potensi risiko dalam proyek konstruksi tersebut adalah dengan menggunakan Asuransi Contractor All Risk (CAR) yang merupakan salah satu produk asuransi engineering yang dikeluarkan oleh perusahaan asuransi umum (general insurance) khususnya oleh perusahaan asuransi umum yang ada di Indonesia. Jumlah sampel penelitian ini adalah 20 perusahaan jasa konstruksi yang ada di Jakarta, teknik pengumpulan data menggunakan kuesioner dengan skala likert, yang terdiri 1 variabel laten eksogen (Variabel X) dan 1 varabel endogen (Variabel Y) dengan total 7 indikator dan 23 item pertanyaan. Metode analisis data menggunakan pendekatan Structural Equation Modelling (SEM) dengan menggunakan program LISREL 8.80. Dari hasil penelitian dan pembahasan dan pembahasan dapat disimpulkan bahwa hasil dari Second Order Construct untuk nilai R² (Koefisien Determinasi) untuk masing-masing persamaan hubungan dapat disimpulkan bahwa penggunaan asuransi contractor all risk (CAR) memiliki presentase pengaruh sebesar 72.54% terhadap pengalihan potensi risiko pada proyek konstruksi.

Operation and maintenance of irrigation sluice gates in tertiary canals Wahyu Sejati; Elfrida Ratnawati; Grace Kurniawati Santoso; Bambang Endro Yuwono; M. Andreanov Amril; Fathya Khansa; Joan Arnold Fredrik
Community Empowerment Vol 7 No 3 (2022)
Publisher : Universitas Muhammadiyah Magelang

Kasemen District, Serang City, was one of the irrigation areas that experienced drought and became the focus of this community service. The lack of irrigation water is one of many factors that cause agricultural land in Kasemen District to switch functions. With the existence of several PKM activities such as field surveys, socialization, counseling on the operation and maintenance of irrigation sluice gates, it aims to increase community knowledge in the operation and maintenance of irrigation sluice gates. This activity encourages residents to be more concerned about river sustainability so that Cibomo Village's water needs can be met. The irrigation sluice gates are maintained as a result of this activity, and the Karya Tani Group's understanding of sluice gate operations and maintenance improves. Local residents are expected to become more concerned about the irrigation area environment as a result of the Karya Tani Group's increased understanding, particularly regarding the pattern of operation and maintenance of sluice gates.

PEMBERIAN VAKSINASI BOOSTER COVID-19 SEBAGAI UPAYA PERCEPATAN TERBENTUKNYA KEKEBALAN KELOMPOK PADA MASYARAKAT DI WILAYAH DKI JAKARTA Evi Susanti Sinaga; Rudy Pou; Gita Handayani Tarigan; Bambang Endro Yuwono; Hartini Hartini
JUARA: Jurnal Wahana Abdimas Sejahtera Volume 3, Nomor 2, Juli 2022
Publisher : Universitas Trisakti

Currently, the entire population of the world is facing the Covid-19 pandemic. The beginning of this pandemic was known from the first report, an outbreak in the city of Wuhan, China, at the end of December 2019. Data in April 2022, Covid-19 has spread to 230 countries with the number of confirmed cases globally as many as 505,035,185 and 6,210,719 cases died. In Indonesia, confirmed cases of Covid-19 reached 6,042,595 cases, 5,855,361 cases recovered and 156,015 cases died. The three provinces with the highest number of confirmed Covid-19 cases and those who died from Covid-19 were DKI Jakarta, West Java, and Central Java. Vaccination is one of the efforts to overcome the Covid-19 pandemic, where the government is currently very serious about creating herd immunity. This community service provided free booster vaccinations to reduce the spread of Covid-19. The Covid-19 booster vaccination was carried out according to the five-day planned schedule. The community served 1314 (87%) from 1511 registrants, and as many as 20 people (1%) had their vaccine delayed due to health reasons. There was no adverse event following immunisation (AEFI) during the vaccination activities.

KOMPATIBILITAS DISAIN : PENENTU KINERJA WAKTU PELAKSANAAN BANGUNAN GEDUNG Bambang Endro Yuwono; Dwi Emi Lisa Yani; Achmad Waryanto
INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CESD) Vol. 1 No. 1 (2018): INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CES
Publisher : Universitas Trisakti

The cause of most projects experiencing delays is the poor quality of the design. One indication of the low quality of design is the change in design at the construction stage. Changes in design at the time of construction cause a decrease in time performance. There have been many studies related to the quality of design, but no one has specifically linked the quality of design to the time performance of project implementation. On the other hand, indicators for measuring the quality of the design have not been the same among the researchers, so it is necessary to re-examine the indicators to measure the quality of the design so that the results reflect the quality of the design that should be. The research was carried out by combining various design quality indicators that had been used by the researchers before, which allegedly influenced the time performance of building construction. The hypothesis proposed was "Improving the Quality of Design will Improve the Performance of the Implementation of Buildings". The object of research is buildings completed in the last 10 years in Indonesia. The data obtained is then tabulated and performed correlation analysis, intercorrelation, factor analysis, determinant analysis, multiple regression analysis, model test and validation. The result is that improving the quality of design will improve performance time and as a design quality determinant is design compatibility.

MANFAAT PENGGUNAAN BUILDING INFORMATION MODELLING (BIM) PADA PROYEK KONSTRUKSI SEBAGAI MEDIA KOMUNIKASI STAKEHOLDERS raflis raflis; bambang endro yuwono; Ripsky Rayshanda
INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CESD) Vol. 1 No. 2 (2018): INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CES
Publisher : Universitas Trisakti

Construction projects are becoming much more complex and difficult to manage, reciprocal interdependence between stakeholders is one of the causes, such as architects, civil engineers and mechanical. Building Information Modelling (BIM) not only allows the geometrical modelling butalso useful for management of construction project especially in communication between stakeholders. The aims of this papers is to find out the project benefit of BIM as a media communication. Data collection is done by distributing questionnaires to large companies both contractor or engineering consultants in DKI Jakarta who have used BIM in communication process. The data is processed by using the structural equation modeling (SEM) method and It was found that the use of BIM could facilitate stakeholders involved in the construction project work team in communicating and coordinating.

Kematangan Shop Drawing Sebagai Penentu Pekerjaan Ulang (Rework) Proyek Konstruksi Ryan Immanuel; Bambang Endro Yuwono
INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CESD) Vol. 3 No. 1 (2020): INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CES
Publisher : Universitas Trisakti

Construction project implementation mostly faced by rework. Rework couldn’t be avoided and is experienced in a construction world. Rework is defined as all physical work of construction committed more than once or re-work which is done by contractor in the implementation stage, and or an activity to eliminate works that have been done before as a part of construction project out of resource context, where there is no change order and making up the cost from the owner. Rework could give a bad impact to performance, work productivity,and cost directly or indirectly having it has a quite significant consequences. By considering the bad impact obtained has far-reaching consequences, hence efforts to reduce the occurrence of rework in construction project stage is highly needed. This research was conducted to prove the maturity of Shop Drawing as a Determinant of Rework Project Construction of Multilevel Buildings Research carried out by using questionnaires. Respondents at the main survey stage were shown to contractors who were carrying out multistorey construction projects in the DKI Jakarta and surrounding areas. Respondents who filled in theProject Manager questionnaire were 3 people, 7 Site Managers, 5 Supervisors, 6 Quality Controls, 4 Engineering staff. In this study, data analysis techniques are determined using the AHP (Analytical Hierarchy Process) method, aiming to determine the dominant factors (ranking) of the factors that cause rework inconstruction work to prove the maturity of Shop Drawing As Determine Project Rework Construction of multistorey buildings. The results of this study indicate that the maturity of shop drawings greatly determines the occurrence of rework in multistorey building projects.

PENGARUH PENERAPAN PROTOKOL PENCEGAHAN COVID-19 PADA PELAKSANAAN KONSTRUKSI PROYEK STRATEGIS NASIONAL Nugraha Nugraha; Bambang Endro Yuwono
INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAINABLE DEVELOPMENT (CESD) Vol. 5 No. 1 (2022): Vol. 5 No. 1 (2022): INDONESIAN JOURNAL OF CONSTRUCTION ENGINEERING AND SUSTAIN
Publisher : Universitas Trisakti

The Covid-19 pandemic has had a significant impact on various sectors, one of which is the construction sector. Implementation elements in this sector include materials, labor, delivery or transportation processes, time and mobility that are directly related to the Covid-19 outbreak, so that it can create uncertainty, while infrastructure development is the government's focus. In an effort to overcome the impact of the pandemic in the construction sector. This study aims to learn the implementation of the Covid-19 prevention protocol in the implementation of the National Strategic Project in Margatiga Dam Project work and to determine the significance of the effect of the implementation of the Covid-19 protocol on project management in the aspects of cost, quality, time, health and safety construction. Analysis of the problem was carried out by collecting data and conducting a questionnaire related to the implementation of the Covid-19 prevention protocol at the Margatiga Dam. The data that has been collected is then analyzed or data validation is carried out using the validity test and reliability test methods. The results showed that the Covid-19 Prevention Protocol Implementation has no effect on the Work Execution Time, and the Implementation of the Covid-19 Prevention Protocol has no effect on the Cost of Work Implementation. In addition, the Implementation of the Covid-19 Prevention Protocol has an effect on Safety and Health

AIR POLLUTION PREDICTION MODELS DUE TO TRAFFIC VOLUME AND GREEN OPEN SPACE AVAILABILITY Bambang Endro Yuwono; Mayang Sari
International Journal on Livable Space Vol. 5 No. 1 (2020): QUALITY OF PLACE AND SPACE
Publisher : Jurusan Arsitektur - FTSP - Universitas Trisakti

ABSTRACT As the population grows, the development of the city increases, as a result the movement of transportation also increases. The development of the city can also affect a decrease in green open space. Increased vehicle traffic affects the increase in air pollution. Hence, there is very little research that mathematically connects the influence of traffic volume (passenger car units) and green open space with the level of air pollution. Green open space and the level of air pollution are directly measured on the field. Subsequently, the measurement is calculated by using the regression analysis to obtain a model of the relationship between green open space and traffic volume with the level of air pollution. The research was directly conducted at 3 locations, 2 locations in Jakarta (Semanggi and Tanah Kusir) and 1 location in South Tangerang. This model can be applied to predict that air pollution will occur as a result of traffic volume and the availability of green open space. Keyword: Air pollution, prediction, green open space, traffic volume

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