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Articles 313 Documents
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THE USE OF WASTE BAMBOO PIECES AS A PARTIAL SUBSTITUTION OF COARSE AGGREGATES TO INCREASE THE COMPRESSIVE STRENGTH OF CONCRETE MUHAMMAD ARDIYAN DENYADI; LYDIA DARMIYANTI; INDRIASARI
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 5 No. 01 (2025): INTERNATIONAL JOURNAL OF MULTISCIENCE - JANUARY-APRIL 2025
Publisher : CV KULTURA DIGITAL MEDIA

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Abstract

Utilizing waste as an alternative building material is becoming an effective solution to environmental problems and is popular in developing countries. On the other hand, the concrete industry, a key component of construction, continues to innovate to improve quality and efficiency. The increasing demand for concrete is driving the development of mix designs that meet stringent quality and compressive strength standards, while taking into account environmental sustainability. Advances in concrete technology spur research initiatives to improve its quality and efficiency of use, with innovations in material selection and execution methodologies. This is aimed at meeting the increasing needs and overcoming construction challenges. Modern concrete is required to perform optimally in less time, requiring effective additives for performance enhancement. Recent research has integrated bamboo waste from the handicraft industry as a component of concrete mixes, increasing the speed of project execution and providing a sustainable solution in waste management. The authors were interested in conducting an in-depth study on improving the compressive strength of concrete by integrating waste bamboo pieces. The concrete studied had a f´c strength of 25 MPa (K-300) and was tested at 7, 14, and 28 days to assess the effectiveness of bamboo as an additive. The test results are expected to provide significant data on the viability of bamboo waste as a partial substitution for coarse aggregate. The title of the study, “Use of Waste Bamboo Pieces as Partial Substitution for Coarse Aggregate to Increase the Compressive Strength of Concrete,” reflects the objectives of the study and the utilization of sustainable materials in modern construction. Based on the results of the research that has been carried out and the discussion in the previous chapter with the variation of waste bamboo pieces 0%, 10% and 15%, the following conclusions can be drawn: the results of testing the compressive strength of normal concrete at the age of 28 days reached 452 kN (fʹc 26, 1 MPa = 104%), while variation 1 of 10% rolled bamboo cuttings waste decreased in compressive strength, reaching 305 kN (fʹc 17.60 MPa = 70%), and variation 2 of 15% rolled bamboo cuttings waste decreased, reaching 309 kN (fʹc 17.83 MPa = 71%).
EFFECT OF COMPRESSIVE STRENGTH OF CONCRETE WITH PARTIAL SUBSTITUTION OF FINE AGGREGATES WITH WASTE BAMBOO FIBERS RAZAK MOHAMADHAN; GALI PRIBADI; LYDIA DARMIYANTI
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 5 No. 01 (2025): INTERNATIONAL JOURNAL OF MULTISCIENCE - JANUARY-APRIL 2025
Publisher : CV KULTURA DIGITAL MEDIA

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Abstract

Concrete consists of cement, sand, gravel and water, with cement being the main binder that affects its quality. However, the increasing cost of raw materials and the environmental impact of lime mining and sand dredging are challenges in construction. To address this, the study proposed the use of bamboo fiber as an environmentally friendly and economical additive. This study tested the variation of 0%, 10%, and 15% pulung bamboo fiber waste on the compressive strength of concrete. The results showed that normal concrete without bamboo fiber had a compressive strength of 452 kN (fc' 26.08 MPa). The addition of 10% bamboo fiber decreased the compressive strength to 404 kN (fc' 23.32 MPa), while the addition of 15% decreased it further to 393 kN (fc' 22.68 MPa). The more bamboo fiber added, the more the compressive strength of the concrete decreased.
COMPRESSIVE STRENGTH ANALYSIS OF CONCRETE USING ASPHALT SCRAP WASTE MUHAMMAD RIFA'I; YONAS PRIMA ARGA RUMBYARSO; INDRIASARI
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 5 No. 01 (2025): INTERNATIONAL JOURNAL OF MULTISCIENCE - JANUARY-APRIL 2025
Publisher : CV KULTURA DIGITAL MEDIA

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Abstract

Concrete is one of the most commonly used building materials in civil construction and is widely used by various groups. Currently, the rapid growth of the global economy has led to various upgrades of concrete building construction systems in various places, resulting in an increase in concrete production. With the development of technology in concrete, more and more ideas and innovations are used to improve the quality of concrete, one of the innovations is by adding additional or substitute materials to concrete. One of the substitute materials that can be used is asphalt scrap waste. This study aims to determine the compressive strength of concrete by utilizing asphalt scrap waste as a partial substitute for coarse aggregate. This research was conducted by comparing the effect of using scrap asphalt waste on the compressive strength of normal concrete. This research method is by conducting experiments or experiments in the concrete laboratory. This research refers to SNI-03-2834-2000, about Procedure for Making Normal Concrete Plan. Based on the research results, it can be concluded that the average normal concrete compressive strength value is 25.57 MPa, so it meets the planned concrete compressive strength of 25 MPa. The average concrete compressive strength of 5% scrap asphalt waste variation is 24.88 MPa, the average concrete compressive strength of 10% scrap asphalt waste variation is 23.86 MPa. Based on these results, that the greater the use of scrap asphalt waste, the compressive strength of concrete decreases.
ANALYSIS OF PILE FOUNDATION PLANNING IN THE CONSTRUCTION OF THE PKK - DEKRANASDA BUILDING IN MAKASSAR CITY GEDE SUMANTRA; ACHMAD PAHRUL RODJI; SAHAT MARTUA SIHOMBING
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 5 No. 01 (2025): INTERNATIONAL JOURNAL OF MULTISCIENCE - JANUARY-APRIL 2025
Publisher : CV KULTURA DIGITAL MEDIA

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Abstract

Concrete consists of cement, sand, gravel and water, with cement being the main binder that affects its quality. However, the increasing cost of raw materials and the environmental impact of lime mining and sand dredging are challenges in construction. To address this, the study proposed the use of bamboo fiber as an environmentally friendly and economical additive. This study tested the variation of 0%, 10%, and 15% pulung bamboo fiber waste on the compressive strength of concrete. The results showed that normal concrete without bamboo fiber had a compressive strength of 452 kN (fc' 26.08 MPa). The addition of 10% bamboo fiber decreased the compressive strength to 404 kN (fc' 23.32 MPa), while the addition of 15% decreased it further to 393 kN (fc' 22.68 MPa). The more bamboo fiber added, the more the compressive strength of the concrete decreased.
ANALYSIS OF COLLECTIVE ACTION THEORY IN DEVELOPMENT PHENOMENON SEA FENCE IN INDONESIA PANDI FIRMAN; WIWIN SEPTIADI; IRWAN
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 5 No. 01 (2025): INTERNATIONAL JOURNAL OF MULTISCIENCE - JANUARY-APRIL 2025
Publisher : CV KULTURA DIGITAL MEDIA

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Abstract

Fence construction the sea in Indonesia is one of effort collective in face impact change climate and abrasion beach. Phenomenon This can analyzed use theory Collective Action in analyze individuals and groups Work The same For reach objective together in management source Power common - pool resources Research This aiming analyze dynamics Collective Action in development fence sea in Indonesia and the challenges and strategies in implementation. Research This use approach qualitative with type study descriptive with method data collection namely study library and study Documents. Data management using Milles and Huberman's thoughts which began with data collection, data reduction, data presentation and drawing conclusions. Research results This show that success Collective Action in development fence sea determined by the strength of social capital, trust inter-factor, existence regulation government and incentives economy for public local. The challenges faced are limited resources, weak coordination and differences in interests between stakeholders. Therefore, a more adaptive and collaborative strategy is needed to increase the effectiveness of Collective Action in the management and construction of sustainable sea fences.
FIT BAR BRAND STRENGTHENING STRATEGY IN MARKET PLACE WITH VISUAL MARKETING TECHNIQUES WAHYUNING CHUMAESON; FANNY HENDRO ARYO PUTRO; MUHAMMAD ABDUL AZIZ; TOPAN SETIAWAN
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 4 No. 03 (2024): INTERNATIONAL JOURNAL OF MULTISCIENCE - EDITION SEPTEMBER - DECEMBER 2024
Publisher : CV KULTURA DIGITAL MEDIA

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Abstract

The purpose of this research is to describe how the corporate strategy of the fit bar brand snack food manufacturer strengthens the market with visual marketing techniques. This is interesting because this snack product is being talked about by diet and healthy food activists and millennial teenagers. Calorie-rich food has become a sexy product amidst the growing awareness of living a restful life by regulating calorie intake. The study was conducted by looking at various digital media platforms used by the product to advertise. The data is interpreted in such a way with a descriptive-narrative approach, by looking for certain highlights that are considered to have interesting visual constructions. The results of the study found how the relatively new product emphasized marketing techniques with a visual approach. Visual is a technique that is considered appropriate for imaging a product, by displaying various beautiful and attractive images. Planting memories in the consumer psychology area at the photographic memory level, with the first appearance sensed by the eye.
PROJECT SCHEDULING WITH CPM AND PERT METHODS ON THE PT. JAKARTA INDUSTRIAL ESTATE PULOGADUNG MOSQUE CONSTRUCTION PROJECT FAIZAL ADDIN ACHMAD; YONAS PRIMA ARGA RUMBYARSO
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 4 No. 03 (2024): INTERNATIONAL JOURNAL OF MULTISCIENCE - EDITION SEPTEMBER - DECEMBER 2024
Publisher : CV KULTURA DIGITAL MEDIA

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Abstract

Project implementation requires accurate planning, scheduling, and management, covering various aspects such as resources, availability of materials, equipment, natural conditions, weather, and other factors that affect project development. Project planning reflects the relationship between activities and the overall project sequence, and helps in prioritizing the relationship between activities. Various methods are available to analyze project schedules. This research uses the Critical Path Method and Progam Evaluation and Review Technique, which is slightly different from the approach used in the construction of the Mosque at PT Jakarta Industrial Estate Pulogadung. In this study, Microsoft Project software was used for the calculation of CPM and PERT methods. Based on the analysis results, 6 work items were found to be on the critical path, namely: preparatory work, lower structure, upper structure, architecture, hardscape and softscape. The project completion time is estimated to be 105 days with the CPM method and 101 days with the PERT method, with a project completion opportunity of 37.37%.
ANALYSIS OF HEAVY EQUIPMENT PERFORMANCE ON THE PROBOLINGGO-BANYUWANGI TOLL ROAD PROJECT KM SECTION KM 09 + 125 TO KM 09 + 725 BILHAN GAMALIEL HARTANTO; YONAS PRIMA ARGA RUMBYARSO
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 4 No. 03 (2024): INTERNATIONAL JOURNAL OF MULTISCIENCE - EDITION SEPTEMBER - DECEMBER 2024
Publisher : CV KULTURA DIGITAL MEDIA

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Abstract

Infrastructure projects, especially in flexible pavement works, are highly dependent on the utilization of heavy equipment. The use of such heavy equipment is an important element that determines the success of asphalt road construction, with the production capacity of heavy equipment being a major factor in the progress of project implementation. Therefore, the analysis of production volume capacity is very important. This study aims to determine the production volume capacity of construction works on the Probolinggo - Banyuwangi Toll Road KM 09+125 to KM 09+725, including an analysis of the capacity of asphalt finisher, dump truck, pneumatic tire roller, and tandem roller. The volumetric method was applied in this study to calculate the volume capacity and productivity of heavy vehicles. The results of the analysis showed that the calculated volume and productivity of the heavy equipment had met the target according to the planned schedule.
UTILIZATION OF WASTE PETUNG BAMBOO PIECES AS PARTIAL SUBSTITUTION OF COARSE AGGREGATE TO IMPROVE COMPRESSIVE STRENGTH OF CONCRETE DOHAR SINABUTAR; YONAS PRIMA ARGA RUMBYARSO
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 4 No. 03 (2024): INTERNATIONAL JOURNAL OF MULTISCIENCE - EDITION SEPTEMBER - DECEMBER 2024
Publisher : CV KULTURA DIGITAL MEDIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Utilizing waste as an alternative building material is becoming an effective solution to environmental problems and is popular in developing countries. On the other hand, the concrete industry, a key component of construction, continues to innovate to improve quality and efficiency. The increasing demand for concrete is driving the development of mix designs that meet stringent quality and compressive strength standards, while taking into account environmental sustainability. Advances in concrete technology spur research initiatives to improve its quality and efficiency of use, with innovations in material selection and execution methodologies. This is aimed at meeting the increasing needs and overcoming construction challenges. Modern concrete is required to perform optimally in less time, requiring effective additives for performance enhancement. Recent research has integrated bamboo waste from the handicraft industry as a component of concrete mixes, increasing the speed of project execution and providing a sustainable solution in waste management. The authors were interested in conducting an in-depth study on increasing the compressive strength of concrete by integrating waste bamboo pieces. The concrete under study has the following grades f´c 25 MPa (K-300) and tested at 7, 14, and 28 days to assess the effectiveness of bamboo as an additive. The test results are expected to provide significant data on the viability of bamboo waste as a partial substitution for coarse aggregate. The title of the study, “Use of Waste Bamboo Pieces as Partial Substitution for Coarse Aggregate to Increase the Compressive Strength of Concrete,” reflects the objectives of the study and the utilization of sustainable materials in modern construction. Based on the results of the research that has been carried out and the discussion in the previous chapter with the variation of waste bamboo pieces 0%, 10% and 15%, the conclusions can be drawn, namely as follows the results of compressive strength testing on normal concrete at the age of 28 days reach 452 kN (fʹc 26,1 MPa = 104%), while variation 1 of 10% waste bamboo cuttings experienced a decrease in compressive strength, reaching 305 kN (fʹc 17,60 MPa = 70%), and variation 2 15% waste bamboo cuttings decreased, reaching 309 kN (fʹc 17.83 MPa = 71%).
PROJECT SCHEDULING USING THE CPM AND PERT METHODS IN THE CONSTRUCTION PROJECT OF THE GORONTALO STATE UNIVERSITY LABORATORY FAIZAL ADDIN ACHMAD; GALI PRIBADI
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 5 No. 02 (2025): INTERNATIONAL JOURNAL OF MULTISCIENCE - MAY -AUGUST 2025
Publisher : CV KULTURA DIGITAL MEDIA

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Abstract

Project implementation requires careful planning, scheduling, and management, covering aspects such as resources, materials, equipment, natural conditions, weather, and other factors that affect project progress. This planning describes the interrelationships between activities throughout the entire project sequence and helps establish priorities. In this study, the Critical Path Method (CPM) and Program Evaluation and Review Technique (PERT) were used, which differ from the approach used in the construction of the Gorontalo State University laboratory. Calculations were performed using Microsoft Project software. The analysis results indicate that six work items are on the critical path: preparation work, lower structure, upper structure, architecture, hardscape, and softscape. The estimated project completion duration is 105 days using CPM and 101 days using PERT, with a success probability of 37.37%.

Page 30 of 32 | Total Record : 313

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