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Abstract Topic: Civil and Environmental Engineering

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Deformation and Dynamic Stability of Asphalt Concrete by using Granite Dust as Filler
Mardiana Oesman1, Asep Sundara2, Jul Endawati3, Dedy Virnawan4

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Corresponding Author
mst telkom

Institutions
Department of Civil Engineering Polytechnic State of Bandung Bandung, Indonesia

Abstract
Abstract—Asphalt Concrete – Wearing Course (AC-WC) is a surface layer of flexible pavement which have direct contact with vehicle wheel. One of the surface layer damage categories is the wheel track (rutting). In this research, the experiment was done by using industrial waste of granite stone production in the form of dust as filler in the AC-WC mixture. The variation of filler content used are 3%, 4.5%, 6%, 7.5% and 9% with cement filler as comparator. The test was conducted by using wheel tracking machine on temperature of 60˚C, 45˚C and 30˚C. The test result shows that the optimum filler content using granite dust in the AC-WC mixture is 3%. Meanwhile the optimum filler content on the asphalt concrete using cement filler is 7.5%. Thus, it shows that the higher temperature cause the ability of maintaining the wheel track decreased. Furthermore if looking at the relation between dynamical stability, deformation depth and deformation velocity on filler concentration is not linear.

Keywords
Keywords—AC-WC, filler granite, deformation resistance, rutting, wheel tracking machine

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/HMXe8ZT6EBxy


Early Warning Model for Disaster Mitigation of Sediment Discharges in Watersheds
TEDJO MULYONO(a*), JUMI(b), AZIZAH(b)

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Corresponding Author
tedjo mulyono

Institutions
a)Department of civil engineering Politeknik Negeri Semarang, Central Java, Indonesia, b) Department of Bussisess Administration, Politeknik Negeri Semarang, Central Java, Indonesia

Abstract
Erosion processes - sediment discharges at the watershed scale, occurring on sloped land and in channels or rivers. Starting with the occurrence of rain, the process of sediment discharge in sloped land is affected by rain and surface runoff, the process can be represented as sediment storage in sloped land, and the process of sediment discharge in channels or rivers supplied by sediment material from sloped land, bottom erosion and river banks, then the process can be represented as a sediment reservoir in a river or channel. Therefore prediction of sediment discharges in watersheds can be done with the concept of a storage model that is the model that is represented to respond to sediment discharges in watersheds. One model with the concept of storage is a tank model. The specific objective of this research is to develop a tank model for prediction of sediment discharges in the watershed at the recession limb when rain is complete. The method used in this study is to use a computational simulation method to obtain optimum tank model parameters including stages: Setting field experiments, Tank Model Analysis Settings namely formulating and analyzing tank models for prediction of sediment discharges in watersheds (hydrographs) at recession limbs when rain has finished. The analysis shows that 4 tank models can be developed for prediction of sediment discharge in the Watershed. Configuring a good tank model for prediction of sediment discharge in the watershed is a model composed of 1 (one) tank consisting of 2 (two) side holes, a representation of the amount of sediment discharge and 1 (one) bottom hole, a representation of the amount of sediment deposits, which applied in the Kreo Sub-watershed. The parameters values and constants for the 1 (one) tank model for the Kreo Sub-watershed are a1 = 0.473; a2 = 0.111; a0 = 0.053; ha1 = 50,608 mm; ha2 = 2.544 mm, Ha = 0.415 mm; Ch = 168.83 mg / liter. The values of the tank model parameters in the watershed have different values according to the condition of the watershed under review.

Keywords
discharge; sediment; prediction; rain; tank

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/3NJP4b6fGEnM


Emission Comparison of Short Lived Climate Forcers Over Long Term Greenhouse Gases From Domestic and Transport Sector in Semarang City
Haryono Huboyo1 , Budi Samadiku2 , Okto Manullang3

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Corresponding Author
Amin Suharjono

Institutions
1234Environmental Engineering Department Diponegoro University, Semarang, Indonesia, huboyo[at]undip.ac.id, budisamadikun[at]gmail.com, oktomanullang73[at]gmail.com

Abstract
Abstract—Short-lived climate forcers (SLCF) controls are important because of their shorter impact and more immediate benefits in the short term than carbon dioxide controls that have a 100-year time horizon. In this study, we estimated the emission of SLCF from domestic and transport sector in Semarang city using emission factor from IPCC and CORINAIR. We also predicted the emission dispersion using AEMOD View. The total consumption of LPG domestic sector in Semarang City is 48,532 tons in 2017 and produces total SCLF emissions 0.537 tons/year and 11,538 tons/year for BC and CH4 respectively. This corresponds to CO2 emissions of 145,611 tons/year and 230.76 tons/year of N2O emissions. While from transport sector, the motorcycle has the largest VKT i.e 18.282.061.600 km/year in 2017. The emission, based on VKT data combined with active vehicles data, reach 178.23 tons/year, 802.52 tons/year for BC and CH4 respectively. Transport sector produces total CO2 emissions almost 15 times to that of domestic sector. Based on emission model, the emission distribution was concentrated in the districts located in the city center. The pollutant was accumulated in the Northwest, city center and Southeast of the city.

Keywords
Keywords—air pollution, climate, distribution, domestic, transportation

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/KY3ZD6cnNRAk


External Strengthening of Reinforced Concrete Beams With Strand Without Stressing under Flexural Loading
Iswanto1, Mardiana Oesman2, Mujiman3

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Corresponding Author
Bagus Yunanto

Institutions
Department of Civil Engineering, Bandung State Polytechnic, Bandung 40012, Bandung, Indonesia

Abstract
Abstractt—This research was purposed to study the composite behavior and the increased capacity of reinforced concrete beam strength under flexural loading caused by external strand strength without stressing. The specimen is divided into 2 types. Type-I specimen has (150 x 300 x 3200) mm dimension with center point loading, and distance of strand clamp as (U- bars) variable; whereas, the Type-II specimen has (200 x 300 x 3200) mm dimension with third point loading, and the number of strand as variable. The test is carried out by static-monotonic loading, and displacement control. Experimental test results shows that the addition of strand on the lower surface of the beam increase the beams load capacity. However, the use of U- bars affects the stability of the concrete. The tighter distance of the U-bars decrease the capacity of the strengthening occured. The increased load capacity of Type I specimens, S3-150, S5-150 and S9-150 are 33.2%, 17%, and 12.1% against control beam (BK-150), respectively. Whereas, the increased capacity of the type-II beam strength of test specimens B1-200 and B2-200 are 10% and 17% against control beam (BN-200), respectively. And the increase of initial stiffness of beam Type-I test specimen S3-150, S5-150, and S9-150 are 14%, 18% and 5% against control beam (BK-150), respectively. Meanwhile, the increase of initial stiffness of Type-II beam of test specimens B1-200 and B2-200 are 21% and 24% against control beam (BN-200), respectively. This study shows that concrete and strand bonding is not compatible. The concrete has been reaching the limit strain, as well as the steel reinforcement in the concrete has been in yielded; meanwhile, strand that has fy is much higher than fy of reinforced steel,is still in elastic condition.

Keywords
_ External strengthening, strand, clamp strengthening, composite, bonding_

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/3xmb8GMgJqQd


INFLUENCE OF STUDY PROGRAM ACCREDITATION, TUITION FEES AND ACADEMIC FACILITIES TO STUDENT-S DECISION MAKING IN SELECTING MARITIME COLLEGE IN CENTRAL JAVA
Lisda Rahmasari ; Ariana Oktavia

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Corresponding Author
Lisda Rahmasari

Institutions
Sekolah Tinggi Maritim dan Transpor "AMNI" Semarang

Abstract
Student-s decision to pursue higher education is based on various criteria, such as study program accreditation, tuition fees and academic facilities. The purpose of this research is to analyze the influence of study program accreditation, tuition fees, and academic facilities to student-s decision making in selecting maritime college in Central Java. Sampling method uses purposive random sampling with 160 students as respondent. The research data is collected using questionnaire, which later is processed using multiple linear regression using SPSS 21. The research result shows that the variable of study program accreditation (X1) had a positive and significant influence to student-s decision with regression coefficient of 0.24 and significance rate of 0,000. The variable of tuition fee (X2) had a positive and significant influence to student-s decision with regression coefficient of 0.17 and significance rate of 0,000. The variable of academic facilities (X3) had a positive and significant influence to student-s decision with regression coefficient of 0.11 and significance rate of 0,002.

Keywords
Decision Making, Study Program Accreditation, Tuition Fees, Academic Facilities

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/uvR4CmTyAL7X


INNOVATIVE PRODUCTS OF CONCRETE STEEL BONE TESTING TOOLS IN THE FIELD OF CIVIL ENGINEERING BUILDING
Tjokro Hadi; Nur Setiaji Pamungkas; Wahjoedi; Tedjo Mulyono

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Corresponding Author
TJOKRO HADI

Institutions
Politeknik Negeri Semarang

Abstract
Bending test is one type of material testing carried out to determine the mechanical properties of a technical material. In designing this bending test required a standard design method that uses standard machine elements as well as commonly found in the market. In practice in the field, there are only a few materials testing practitioners who pay attention to aspects and effects of variations in the dimensions of the test specimen on the data from the test results. The test is carried out with the intention to obtain information about fulfilling the quality requirements and the feasibility of the material to be used as construction material for buildings, bridges and other physical buildings. One application that can be done is to look at aspects of the problems that are around that are related to practicum activities in the laboratory and in the work industry. Therefore it is necessary to adjust between making the final report with the needs needed in the industrial world. For this reason, the bending test is made to study the effect of dimensional variations on test specimens in arcing testing. For this reason, this study with the title "Innovative Products for Concrete Reinforcement Steel Curved Test Equipment in the Field of Building Materials in the Department of Civil Engineering" is very important to do. The research was conducted to improve the performance of tools in the building materials laboratory. The final results of the study are expected to function optimally and easily used for laboratory work.

Keywords
Bending test, concrete reinforcement steel, building material laboratory.

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/MKGD7VcBjEYC


IPO MODEL (INPUT OUTPUT PROCESS) IN HANDLING URBAN AREA DRAINAGE
Tedjo Mulyono (a*), JUMI (b), AZIZAH (b)

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Corresponding Author
tedjo mulyono

Institutions
a) Civil Engineering Department, Politeknik Negeri SemarangCentral Java, Indonesia
b) Bussiness Administration Department, Politeknik Negeri Semarang, central Java, Indonesia

Abstract
Flooding is a problem that often afflicts Grogol Subdistrict, Sukoharjo Regency, Central Java Province, this is due to the lack of efficiency in drainage performance, it is necessary to make a rain flow model to control the performance of the drainage system. IPO Model (Input Process Output), a model for handling flow in drainage channels. The purpose of this study is to develop a model of rainfall flow to analyze the performance of the drainage system, to solve drainage problems in Grogol District, Sukoharjo Regency. Calculations are made using daily rainfall data for the past 15 years from 2002 – 2017. The most appropriate Frequency Distribution is the Normal Method, used to look for plan rains with a return period of 2 years, 5 years, and 10 years in the Frequency Duration Intensity (IDF) curve. Based on the rainfall intensity, it is calculated using the Rational formula so that it gets a plan debit every return period, in this case a 10 year return period. Based on the results of the study, almost all drainage channels experienced overflow due to back water, pumping is needed. In this study the pump calculation is performed using the water jump formula. Some sub-systems require additional pumps, including; (1) Langenharjo 3 pumps capacity 1 m3 / sec, (2) Dlopo Barat 2 pumps capacity 0,63 m3 / sec, (3) Grogol 2 pumps capacity 0,63 m3 / sec, (4) Kadokan 2 pumps capacity 0, 63 m3 / sec, (5) North Pandeyan 2 pumps capacity of 0.63 m3 / sec, and (6) South Pandeyan 2 pumps capacity of 0.63 m3 / sec.

Keywords
flood; IPO; drainage; rainfall; pumps

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/Lvz4bcg2ynPN


Mapping of Flood-Prone-Zone and Puddle-Prone-Zone in Cimahi City West Java Province
1 Iin Karnisah , 2 Yackob Astor

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Corresponding Author
mst telkom

Institutions
1 Politeknik Negeri Bandung (POLBAN), Bandung, Indonesia

Abstract
Abstract— Climate change and advanced urbanization level followed by the changing function of an area affect to the amount of water absorption area. It causes puddle and flood in city, include Cimahi, West Java, which is in the last 10 years has been surrounded by flood and puddle. To avoid the flood case in Cimahi, the re-identification and flood-factor inventory are needed. The identification and inventory are using the simplest method (literary study from any source), start from discussing session with Cimahi government, interviewing and filling questioner to the citizen who live in flood and puddle area, measuring river and drainage profile, counting the capacity of river and drainage, until simulating the 2-dimension and 3-dimension of flood and puddle. The result of the identification and inventory is shown in Flood- Prone-Zone Map and Puddle-Prone-Zone Map. According to Cimahi-sFlood-Prone-Zone Map, it shows that the flood-safe area is about 110,747 ha (2,70%), the not-flood-prone area is about 494,233 ha (12,05%), the flood-prone area is about 2016,474ha (49,18%), and the very-flood-prone area is about 1478,799 ha (36,07%). According to Cimahi-sPuddle-Prone-Zone Map, it shows that the puddle-safe area is about 128,616 ha (3,14%), the not-puddle-prone area is about 551,246 ha (13,44%),the puddle- prone area is about 2702,826 ha (65,92%), and the very-puddle- prone area is about 717,556 ha (17,50%). The Flood-Prone-Zone Map and the Puddle-Prone-Zone Map can be used as a reference for the Cimahi Government in formulating the policy of regional development.

Keywords
Keywords— flood, puddle, safe, not prone, prone, very prone.

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/gjrkYDa7EC9n


Mechanical Properties of Porous Asphalt with Gilsonite Additive
Rochaeti1, Jul Endawati2, Tetra Oktaviani3

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Corresponding Author
mst telkom

Institutions
1,2,3Department of Civil Engineering Polytechnic State of Bandung, Bandung, Indonesia,

Abstract
Abstract— The porous asphalt mixture is an asphalt mixture that consist of high void and a small proportion of fine aggregate. The presence of a high void reduce the value of marshall stability. Many attempts to increase the value of marshall stability by adding substances into the porous asphalt mixture has been done by several researchers. Modified porous asphalt can be achieved by adding gilsonite to the mixture which aims to accomplish the main function of the porous asphalt layer as well as to improve the quality of mixed performance. The method used in this study is an experimental method. The test that conducted in this study using two types of gradations that are Japan and Australia gradation. The research was Marshall characteristic test with 2.5%, 3.5%, 4.5%, 5.5%, 6.5% of gilsonite content and 0% as the control. The results showed that porous asphalt mixture using gilsonite proved to increase the value of Marshall stability compared to non-modified porous asphalt mixture by 24%. The mixture reaches a maximum state at 5.5% gilsonite content. The best performance is produced by the mixture using Japanese gradation.

Keywords
Keywords—Porous Asphalt, Gilsonite, Marshall Stability

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/HQWjzZcywpg3


MONITORING RAINFALL INTENSITY AND MOISTURE WATER CONTENT USING SOIL COLUMN EXPERIMENT
Muhammad Mukhlisin, Amin Suharjono, Roni Apriantoro, Bagus Yunanto and Martono

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Corresponding Author
Muhammad Mukhlisin

Institutions
Politeknik Negeri Semarang

Abstract
Indonesia is a tropical country that has two seasons, rainy season and dry season. The wetting and drying of soil due to changing of the seasons caused change on soil properties such as moisture soil water content, effective soil porosity, soil suction etc. During rainy season, rainfall infiltration caused increasing of moisture soil water content in a soil slope, tends to reduce soil shear strength and followed by slope instability. In this study soil column experiment was set up with rain gauge station and YL-69 sensor to monitor rainfall infiltration and soil moisture water content. A wireless sensor network with low power wide area network technology integrated with the cloud to observe rainfall intensity and soil water content in soil column with realtime monitoring. The study focused on improving the accuracy of rainfall intensity and soil water content sensors readings using regression methods. The experiment results showed that rainfall intensity was observed accurately while for the YL-69 sensor, the error reading was 2.2% and the error reading capasitive soil moisture sensor was 1.8%.

Keywords
: rainfall intensity, soil moisture water content, wireless sensor network, low power wide area network.

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/JMKyXFtNfwmg


Optimization of Maritime “Management” as the Foundation of Indonesia to Become the World-s Maritime Axis
Mariana Kristiyanti, Endah Fauziningrum

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Corresponding Author
Mariana Kristiyanti

Institutions
Sekolah Tinggi Maritim dan Transpor “AMNI” Semarang

Abstract
Indonesia-s most territory is ocean. So, it is not impossible to make Indonesia as the world-s maritime centre or even as world-s maritime axis, as we dreamed. In the history of Amanna Gappa stated that the world-s maritime laws came from Nusantara. It becomes a strong background for Indonesia to rise through maritime. In order to do that, it requires sea management. Without a structured and integrated sea management, the dream of rising Indonesia through maritime will only be a dream. It becomes a benefit as Indonesia-s greatest God gifts is ocean which it is two-third of Indonesia-s geographical location. In order to take the benefit of it, Indonesia should have a distinctive sea management. It includes the concepts of defense, security and safeness. It is a soveregnity concept on the limitation and regulation at sea. As there are differences on land and sea concepts. There are clear fences or boundaries on land. On the contrary, sea is a wide open water with no boundaries. The foundation of Indonesia as the world-s maritime axis is hopefully by optimizing the sea management.

Keywords
Management, Maritime, Foundation, World Maritime Axis

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/2A8xNXkCdYyL


PENGARUH VARIASI PENAMBAHAN LIMBAH PLASTIK JENIS THERMOSETTING TERHADAP LASTON AC-WC DALAM UPAYA PEMANFAATAN LIMBAH
Kusdiyono; Supriyadi; Tedjo Mulyono; Sukoyo

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Corresponding Author
KUSDIYONO KUSDIYONO

Institutions
Politeknik Negeri Semarang

Abstract
At present, plastic is a material that is needed by the community at large, where the impact is also very extraordinary after the plastic is used in everyday life which can cause serious problems if the management is not done properly. The problem of plastic waste does not only occur in the city of Semarang, but also in other cities, so that the Ministry of Environment and Forestry has implemented a paid plastic bag program in the short term. But this is only to deal with problems in the short term. In the long run, it will not solve the problem of "plastic waste", because the policy actually encourages people to buy plastic which, of course, will add a new burden for the community to buy it. Based on the above problems, it is necessary to utilize this plastic waste to be made into road pavement materials such as in the manufacture of Asphal Concrette Wearing Course, by making 5 mixed variations ranging from (2 to 10)% of the weight of the aggregate . This research was initiated through a survey process, material procurement, testing of stacking materials, making test specimens, testing specimens. The results of the research can show that the type of Thermosetting plastic waste has a significant influence on the Asphalt Concrete mixture AC-WC heat mixture, including: Density, Marshall Stability, Flow, VIM, VMA, MQ and the remaining Marshall Stability tend to show an increase, moderate VFA and VIMrefusal Density values tend to show a decrease. Thus the plastic waste from the Thermosetting type can be used as a partial replacement of the aggregate for the Asphalt Concrete mixture AC-WC heat mixture with a plastic waste content is limited to a maximum of 10% and at an optimum asphalt content of 5.55%. Thus this research is expected to be of benefit to the industry and the people of Semarang in relation to the use of plastic waste for road pavement.

Keywords
Plastic Waste, Concrete Asphalt Substitution

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/TQUAk72ehFvc


Performance Improvement of Asphalt Concrete- Wearing Course with Modification of Masterbatch SIR20
Nindya Putri Yulianti1, Suherman Sulaiman2 , Retno Utami3.

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Corresponding Author
mst telkom

Institutions
1,2,3 Department of Civil Engineering Polytechnic State of Bandung, Bandung

Abstract
Abstract—Asphalt Concrete-Wearing Course is a layer that is located at the top of flexible pavement structure. Types of damage that often occur in the AC-WC layer are rutting and slippery. AC-WC modification with masterbatch SIR20 is a system that improves AC-WC performance in reducing deformation in pavement structure and improving crack and skid resistance. The method that is used in this study is an experimental method that compares and analyzes the performance of the modified AC-WC layer with variations of masterbatch content are 2%, 4%, 6% and 8% and 0% as a control. The 4% of masterbatch content in the AC-WC modification layer is an effective and efficient option to be applied as a surface layer of a pavement structure.

Keywords
Keywords—AC-WC, masterbatch, deformation resistance, skid resistance, rutting

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/GTB6qFtNbV3u


PREDICTION OF SEDIMENTS DISCHARGE IN WATERSHED WITH TWO TANK MODELS
Tedjo Mulyono¹, Jumi 2, Azizah 3

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Corresponding Author
tedjo mulyono

Institutions
1,Department of civil engineering 2,3 Department of Bussisess Administration, 1,2,3Politeknik Negeri Semarang,

Abstract
Abstract-Uncontrolled erosion would cause considerable damages, such as soil fertility decline, water structures damage and reservoirs sedimentation. As the data for the sedimentation rate are limited, several models have been developed to predict the surface erosion and the rate of sedimentation. However, the availability of sufficient, diverse and extensive data are needed for the implementation of the models, both for the model calibration and the verification. The result of the analysis shows that both of the Tank Models that represent the erosion- sedimentation rate process, in which Tank Model 1 being the three-tank cascade system and Tank Model 2 being two-tank cascade system, are not optimum. This can be observed from the values of volume error (VE), relative error (RE), root- mean-square error (RMSE) and correlation coefficient (R) that show the effect of 1.5 hours of rain period in the sedimentation rate. The field condition shows considerable sedimentation, on the other hand, the models- simulations show decreasing sedimentation rates. The optimum model-s parameters for Tank Model 1 and Tank Model 2 are 924.51%-1049.26% for the relative error, 50.81% - 121.42% for the volume error, 0.9 for the correlation coefficient and 6703.59- 17,297.85 for the root-mean-square error. The parameters and constant-s values of the models are different relative to watershed condition.

Keywords
Keywords: Sedimentation rate, surface runoff, rainfall, tank model

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/mCdek3xqUyB4


Promoting of Precipitation Technique using Bio-Chemical Grouting for Soil Liquefaction Prevention
Heriansyah Putra (a*), Hideaki Yasuhara (b), Muhammad Fauzan (a), Aiun Hayatu Rabinah (c)

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Corresponding Author
Heriansyah Putra

Institutions
(a) Dept. of Civil and Environmental Engineering, IPB University, Bogor, Indonesia
*heriansyahptr[at]apps.ipb.ac.id
(b) Dept. of Civil and Environmental Engineering, Ehime University, Matsuyama, Japan
(c) Dept. of Civil Engineering, Politeknik Negeri Semarang, Semarang, Indonesia

Abstract
The applicability of bio-chemical grouting as the environmentally friendly and economically method for soil liquefaction prevention was evaluated. Several combinations of organic and in-organic precipitations methods were conducted to obtain the optimum grouting solution. Organic precipitation method employs a bio-agent of urease enzyme to dissociate urea into ammonium and carbonate ions. The produced carbonate ions are precipitated as calcite crystals in the presence of calcium ions. Meanwhile, the in-organic methods were performed using chemical compounds only, without the bio-agent. Unconfined compressive strength (UCS) tests were performed to evaluate the applicability of the grouting solutions for improving the soil strength. Grouting solution is injected into the prepared sand samples. The sand samples with a relative density of 50% were treated with one and two PV for 3-day curing times. The experimental results showed that the organic precipitation method produced the high precipitated amount and resulted in the significant improvement in the strength of the treated sand. The presence of the precipitated materials within the grains of soil generated the strength of 272 kPa. The results of this study have elucidated that the organic precipitation method composed of calcium chloride, magnesium sulfate, urea and enzyme of urease may be an alternative soil-improvement technique to prevent the liquefaction susceptibility.

Keywords
biochemical, grouting, liquefaction, soil improvement, UCS

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/axyVDpg27AjW


Reinforcement Method Of Reinforced Concrete Beam By Using Non-Stressing Strand
1Ambar Susanto,2 Heri Kasyanto, 3Susilahadi

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Corresponding Author
mst telkom

Institutions
1,2,3Civil Engineering Department Politeknik Negeri Bandung , Bandung, Indonesia

Abstract
Abstract—Many methods can be used in the repair of bridges or other structural buildings. The aim is to increase the existing capacity. In the reinforced concrete beam structure, capacity of structural elements can be carried out by reinforcement method. The research was done by experimental loading test in laboratory. The test objects are consisted of 2 (two) reinforced concrete beams : a normal beam without reinforcement (NB) and a reinforcement beam by using non- stressing srand (RB1). The dimensions of the beams are 150mm x 300mm x 3200 mm. All beams are loaded by static- monotonic load until collapses. From the results of the research, the first yield load for the NB beam and RB1 beam respectively are 22 kN and 29kN. The deformations that occur at the conditions are 9.5mm and 14mm respectively. The collapse occurring on the NB beam is the bending collapse, whereas in the RB1 beam is a bending- shear collapse.

Keywords
Keywords— concrete beam, reinforcement method, non- stressing strand, static-monotonic load

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/qATaDRGyF42t


Sustainable Development Strategy as an Industry Responsibility in Terms of Human Welfare
Emma Budi Sulistiarini (a*), Sudjito Suparman (b),Purnomo Budi Santoso (c), Ishardita Pambudi Tama (c), Ampala Khoryanton(d)

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Corresponding Author
Ampala Khoryanton

Institutions
a)Department of Industrial Engineering Widyagama University of Malang, Malang, Indonesia
emma_budi[at]widyagama.ac.id

b)Department of Mechanical Engineering Brawijaya University of Malang, Malang, Indonesia

c) Department of Industrial Engineering Brawijaya University of Malang, Malang, Indonesia

d) Department of Mechanical Engineering Polytechnic State of Semarang, Semarang, Indonesia

Abstract
Industry in the 4.0 era, remains relevant to be expected to pay attention to sustainable development. It still pays attention to future generations in meeting their needs. So the industry must continue to pay attention to environmental sustainability and human welfare, in addition to achieving profits. Moreover, Indonesia in this decade, there will be quite a number of productive young generation, so it is hoped that the potential amount of human resources will bring many benefits to the sustainability of the earth. This paper presents strategies that can be applied by the industry in human welfare, as a form of responsibility for the industry to help protect the earth from extinction (in accordance with the concept of sustainable development). Data was collected through interviews, discussions with several profesionals in the industry and some references. After the variables are obtained, they are verified and prioritized, to find out what needs to be done first.

Keywords
sustainable development; industry responsibility; human welfare; human resources.

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/VGYjnCaZKB8W


THE APPLICATION OF TECHNO ECOLOGY OF WATER SYSTEM AS AN EFFORT TO FULFILL WATER NEEDS OF AGRICULTURAL IRRIGATION FOR THE COMMUNITY OF WATER USE FARMERS ASSOCIATION (CASES IN INDONESIA)
Basuki Setiyo Budi 1), Suparni Setyowati Rahayu 1), Edy Suhartono 1), Wahyu Krisna Hidayat 2)

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Corresponding Author
BASUKI SETIYO BUDI

Institutions
1) Politeknik Negeri Semarang
Jl. Prof. H. Soedarto S.H., Tembalang, Semarang
basuki.setiyo.budi[at]polines.ac.id
2) Universitas Diponegoro
Jl. Prof. Soedarto, SH Tembalang, Semarang
wahjukris[at]yahoo.co.id

Abstract
The general objective of the activity which involves the Application of Techno Ecology of the Water System as an Effort to Fulfill Water Needs of Agricultural Irrigation for the Community of Water User Farmer Association of Bumijawa District, Tegal Regency as an effort to meet the needs of agricultural irrigation water and facilitate the downstream process of Techno Ecology of the Water System resulting from community research. this can improve the quality and competitiveness of the Techno Ecology based Water Science and Technology system, establish and strengthen the network between technology makers of the Techno Ecology of the Water System and the technology users who have problems raising water from the river to meet the needs of agricultural irrigation water and improve the welfare of the community agricultural irrigation water users resulting from the Techno Ecology of the Water System. The specific target to be achieved is to disseminate the Techno Ecology of the Water System to get the technology to lift water from the river with a depth of approximately 20 meters below agricultural land. The method used is through several stages in the application of technology to the community by implementing together with partners identifying irrigation water needs by counseling, designing and calculating Appropriate technology (TTG) design drawings, making Appropriate technology (TTG), operational assistance by implementers in operating Appropriate technology (TTG) in a sustainable manner. Dissemination of technology to the community / partners by disseminating information on appropriate technology to the community through joint implementation with partners from the manufacturing process to the use of Appropriate technology (TTG). Work procedures to support the realization of the methods offered, counseling, equipment design and manufacturing, equipment work procedures, Appropriate technology (TTG) dissemination, assistance. Partner participation in the implementation of the establishment of an Institutional Forum, mapping of water distribution layouts, development of water distribution layouts, Design of water systems, the process of preparing work procedures, participating in the extension of water use / distribution in the Techno Ecology of Water Systems. The target of the Techno Ecological Equipment of the BEWRAM Water System as an irrigation water reservoir so that farmers can increase the productivity of agricultural products

Keywords
Techno Ecology, BEWRAM Water System, Agricultural Irrigation

Topic
Civil and Environmental Engineering

Link: https://ifory.id/abstract/xN8daCA7Wq4t


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