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Indriasari

Teknik Sipil Universitas Krisnadwipayana

Author-ID : 4211093

Civil Engineering, Building, Construction & Architecture Computer Science & IT Environmental Science Materials Science & Nanotechnology Transportation

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FAKTOR-FAKTOR PENENTU UTAMA KETERLAMBATAN PADA PEKERJAAN KONSTRUKSI PABRIK (STUDI KASUS: PABRIK KAWASAN CIKARANG) Mardiaman Purba; Indriasari
Jurnal Rekayasa Teknik Sipil dan Lingkungan - CENTECH Vol. 2 No. 1 (2021): APRIL. ISSN 2722-0230 (Online)
Publisher : UKI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (931.361 KB)

At every stage of a construction project, time is a factor. Delays are common in construction projects. The timing of construction projects is influenced by a number of factors. Furthermore, these factors contribute to the length of time required for implementation. The sequence of factors that cause delays in construction work is examined in depth in this study. The list of delay factors compiled from various sources. Following the screening, the following 6 categories and 57 factors of tardiness were generated in order: 2) ingredients (5); 3) equipment (7); 4) location characteristics (10); 5) managerial (16); and 6) finance (6). These factors were arranged into a structured questionnaire list, which respondents filled out based on their perception trends. A total of 34 people responded to the survey. The Cronbach alpha test was used to test the reliability and validity of the collected data, which was used to determine the factor ranking using average value analysis based on large to small values. The data was processed in the following order based on the categories of the delay's causes: ingredients; labor; managerial; location characteristics; finance; and equipment. Meanwhile, material delivery (B1), a lack of coordination with supervisors (A10), and the need for material counting are the three most important factors (E4). Contractors looking for work in Cikarang and elsewhere should be aware of three major factors that cause delays in industrial construction projects.

PENGARUH PENAMBAHAN BATU GRANIT DAN RAMBUT SEBAGAI FILLER TERHADAP KUAT TEKAN DAN LENTUR BETON Mardiaman; Ahmad Fadly; Indriasari
Jurnal Rekayasa Teknik Sipil dan Lingkungan - CENTECH Vol. 3 No. 1 (2022): APRIL ISSN 2722-0230 (Online)
Publisher : UKI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cen.v3i1.3821

Concrete is a mixture consisting of fine aggregate, coarse aggregate, water, cement, and with or without other additives. This research uses a mixture of concrete with hair waste and granite, where the amount of hair waste produced every day from thousands of barbershops in Indonesia is increasing rapidly. The innovation of granite shard waste in the construction of this building is to utilize the waste of granite shards leftover from construction. This study aimed to determine the effect of using granite and hair as a filler on the compressive strength of concrete and the flexural strength of concrete. The time in this study for 35 days was tested for concrete aged 7,14,21,28 and 28 days. With a variation of 0%, 2.5%; 7.5%; 12.5%; 17.5% and 22.5%. The results of this study found that comparing the compressive strength of normal concrete with mixed concrete in the 35-day old concrete test for normal concrete was 321.1 kg/cm2 while for mixed concrete was 305.7 kg/cm2. For comparing the flexural strength of normal concrete with mixed concrete in the 35-day old concrete test, for normal concrete, it is 32 kg/cm2, while for mixed concrete, it is 31.3 kg/cm2. It turns out that the compressive and flexural strength of concrete by adding granite and hair with certain variations to the mixture is still lower than normal co

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