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All Journal IJTI (International Journal Of Transportation And Infrastructure) IJIEEB : International Journal of Integrated Education, Engineering and Business NEUTRON : Research from all areas of the Civil Engineering

Fredy Kurniawan

Narotama University Surabaya

Author-ID : 3788945

Automotive Engineering Civil Engineering, Building, Construction & Architecture Education Engineering Social Sciences Transportation

Published : 7 Documents Claim Missing Document

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Articles

Comparative Analysis of the Costs (RAB) Budget Development Project in Surabaya Arik Krismawanto; Fredy Kurniawan
IJESEMS : International Journal of Engineering Science Educatioon and Management System Vol 2 No 1 (2019): March 2019
Publisher : LPPM NAROTAMA UNIVERSITY, Indonesia

In the construction of a building, one of which is a mosque, it does require efficiency on the budget plan, so that development can be completed to the maximum with optimal time and little cost. The purpose of this study is to find out the ratio of labor wage coefficients between the Budget Plan (RAB), BOW and Implementation; Knowing the comparison and the difference in the number of unit prices of labor wages; Find out the cause of the difference in price. Data processing is done by literature method, documentation, conducting field observations and conducting interviews. The results of the work include formwork column K1 (thread D19) foreman coefficient ratio in RAB Offer with Implementation that is equal to 1.21, while BOW with Implementation is 0.37. Then for the wages of reinforced concrete deck work Lt. 2 12cm thick K-250 with an area of ??41.05 m3 the difference between the RAB of the Offer and the Implementation of Rp. 36,263,855.91 (64.4%), while the difference between BOW and Implementation is Rp. 138,619,043.82 (87.4%). The magnitude of the ratio of ratios and differences in the budget for wage costs is influenced by many factors: labor wage prices, quantity or amount of labor used in the project, skill level and age of the workforce, and high interest in workforce employment.

The Effect Of The Implementation Of Occupational Health And Safety Management Systems (Smk3) Against Security Tower Construction Project " X ”In Surabaya Mansur; Fredy Kurniawan; Atik Wahyuni
Neutron Vol 20 No 2 (2021): JANUARY 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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This study aims to analyze the effect of the implementation of the Occupational Safety and Health Management System (SMK3) on the productivity of workers on the "X" tower construction project in Surabaya. The population used is the employees of the tower construction project "X" in Surabaya as many as 230 employees, while the number of samples taken 146 employees. The data used is sourced from primary data. Data collection is done by distributing questionnaires. The data analysis technique used is multiple linear regression analysis.The results in this study indicate that: (1) Safety Factor has a significant and positive influence on Project Security; (2) Equipment and Work Wear Factors have a significant positive effect on Project Security; (3) Vehicle Track Factors have a significant positive effect on Project Security; (4) Fire Factor has no significant effect on Project Security; (5) Equipment and Machine Factors have a significant positive effect on Project Security; (6) Electricity and Sound factors have a significant positive effect on Project Security; (7) Public Protection Factors have no significant effect on Project Safeguards; (8) General Factors have a significant positive effect on Project Security; (9) Occupational Health Factors have a significant positive effect on Project Security.

THE EFFECT OF ADDITIVE TYPE "X" WITH FOAM AGENT AND COCONUT FIBER ON CONCRETE Abdul Muhaimin; Fredy Kurniawan
IJTI International Journal of Transportation and Infrastructure eISSN 2597-4769 pISSN 2597-4734 Vol 2 No 1 (2018): September 2018
Publisher : NAROTAMA UNIVERSITY, Indonesia

One of the building materials that has developed very rapidly is concrete. Some of the advantages of concrete include the relatively low price, high compressive strength, rust resistance, easy transport and printing, and are relatively resistant to fire. There are several ways that can be used to make concrete light, including the use of lightweight aggregates, foam agents, coconut fibers and additive types "x", where coconut fiber waste has not been used optimally. In this study a lightweight concrete mixture of additive type "was made using x 5M additive products, foam agents and coconut fibers using a cement content of 650kg / m3. The variation of the "x" additive is 2%, 4%, 5%, foam agent is 2.5%, 3%, 4% and coconut fiber is 15%, 20%, 25%. with the treatment conditions for the specimens for 28 days soaked and not soaked. Test objects are made of cubes with a size of 15x15x15cm. This study is to determine the weight / m3, the compressive strength of the lightweight concrete produced. The results showed that the increase in the use of additive types "x", foam agents and coconut fibers caused the weight of the concrete to be heavier and compressive strength. The highest weight of this lightweight concrete at the age of 28 days is not immersed in 1.867 kg / m3, while the lowest is 1.665 kg / m3. The test object for non-soaked conditions has a better compressive strength of 324 kg / cm2 than the test object with the condition soaked press test which is 293 kg / cm2.

ANALYSIS OF THE EFFECT OF ADDITION OF INJECTION PLASTIC SEEDS (HDPE), QUARTZ SAND AND ADDITIVE TO CONCRETE MIXTURE Tjatur Rahmadi Maulana; Fredy Kurniawan
IJTI International Journal of Transportation and Infrastructure eISSN 2597-4769 pISSN 2597-4734 Vol 2 No 1 (2018): September 2018
Publisher : NAROTAMA UNIVERSITY, Indonesia

Plastic material is one of many materials that are difficult to decompose naturally and require hundreds of years to decompose completely. One way to reduce the volume of plastic waste is to process or recycle it. Plastic injection seeds (HDPE) is one type of processed plastic waste (HDPE). In this study using the concrete laboratory experimental method according to SNI 03-2834-2000. There are 2 stages in this concrete research, stage 1 is concrete with variations of quartz sand (20%, 30%, and 40%) to the weight of sand and the most optimum results are obtained in concrete mix with 40% quartz sand and 3% additive (TH1 / 40-28) which is equal to 613.1 kg / cm2 in the 28 day test, an increase of 42.34% from the compressive strength of normal concrete K300 of 430.73 kg / cm2. For phase 2, concrete with a variation of quartz sand is 40% and the addition of coarse aggregates from plastic seeds (HDPE) (20%, 30% and 40%) from the weight of gravel and find the most optimal results of concrete mix with 40% quartz, plastic 20% , additive 3% (TH2 / 20-28) which is equivalent to 359.5 kg / cm2 in a 28 day test, a decrease of 41.4% from the compressive strength of concrete stage 1 quartz sand 40% (TH1 / 40-28) from 613, 1 kg / cm2.

TIME OPTIMIZATION USING CPM, PERT AND PDM METHODS IN THE SOCIAL AND DEPARTMENT OF KELAUTAN BUILDING DEVELOPMENT PROJECT GRESIK DISTRICT Ardabil Maulana; Fredy Kurniawan
IJTI International Journal of Transportation and Infrastructure eISSN 2597-4769 pISSN 2597-4734 Vol 2 No 2 (2019): March 2019
Publisher : NAROTAMA UNIVERSITY, Indonesia

Planning a project there are many important things that affect the success and smoothness, one of which planning time implementation of the right and efficient work. The way to overcome the problem is by using several methods such as CPM (Critical Path Method), PERT (Project Evaluation and Review Teqnique), PDM (Precedence Diagram Method). From the calculation result show that the duration of project completion using CPM method is 57 weeks, project completion duration using PERT method is 78 + 7.5 weeks with the probability of achieving project completion time target is 99.87% and project completion duration using PDM method is 30 weeks. So the method that best suits the Social Service Development Project and the Office of Marine Gresik Regency is the PDM method because the PDM method is capable of producing shorter project completion periods than the CPM and PERT methods of 30 weeks.

LIGHTWEIGHT CONCRETE MAKING ANALYSIS USING MIXED CELLULOSE Nanang Budi Setyawan; Fredy Kurniawan
IJTI International Journal of Transportation and Infrastructure eISSN 2597-4769 pISSN 2597-4734 Vol 2 No 2 (2019): March 2019
Publisher : NAROTAMA UNIVERSITY, Indonesia

Development era of globalization has resulted in increasing number of second-hand goods / waste that its existence can be a problem for life in the future. Many things are done in order to recycle paper cement in order to overcome this problem the existence of waste. One way is to use waste paper to be a part of the building. The purpose of this study, to determine the compressive strength and optimum density. Laboratory experimental method uses a variation of 10%, 20%, 30% and testing conducted in the form of compressive strength and density. From the test results obtained by the result of decrease in the compressive strength and density. In addition cellulose concrete mix design with variations determined that 10%, 20%, 30% resulted in a decrease in the compressive strength of concrete,

EFFECT OF ADDING POLYVINYL ACETATE AND COCONUT SHELL ON CONCRETE Vivaldi Octavianto R; Fredy Kurniawan; Diah Ayu W R
IJTI International Journal of Transportation and Infrastructure eISSN 2597-4769 pISSN 2597-4734 Vol 2 No 2 (2019): March 2019
Publisher : NAROTAMA UNIVERSITY, Indonesia

Manufacture of concrete with a mixture of coconut shell and polyvinyl acetate. The material used in this study are from the coconut shell coconut waste treatment process which is crushed to a maximum size of 20 mm, whereas polyvinyl acetate condition is milky white emulsion. This study uses laboratory experiments concrete according to standards ISO 7656: 2012 for normal concrete and developed into concrete innovation. Coconut shell as a substitute for gravel with a rate of 8% and 10%, while the addition of polyvinyl acetate in the amount of 8% and 10%. At the time of fresh concrete workmanship, testing the slump test to control the workability and homogeneity. Treatment (Curing) specimen is done by covering the paper specimens with wet cement. Compressive strength testing carried out during the 28 days of the test specimen. The results obtained on the compressive strength with the highest average percentage of materials such as concrete polyvinyl acetate 8% and 8% of coconut shell Amounting to 351 kg/cm2 with an average density of 2199 kg/cm3. In each of the test object with a weight value is the quality efficiency in concrete polyvinyl acetate 8% and 8% of coconut shell.

Co-Authors Abdul Muhaimin Ardabil Maulana Arik Krismawanto Atik Wahyuni Diah Ayu W R Mansur Nanang Budi Setyawan Tjatur Rahmadi Maulana Vivaldi Octavianto R

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