Zero cement geopolymer concrete as an anti-radiation material with iron slag as a coarse aggregate | [ARPN Journal of Engineering and Applied Sciences • 2024]

Author(s):

1. Dhiya Ulhaq Azhara: Department of Civil Engineering,Universitas Pembangunan Jaya, Banten,Indonesia

2. Agustinus Agus Setiawan: Department of Civil Engineering,Universitas Pembangunan Jaya, Banten,Indonesia

Abstract:

This research aims to analyze the use of iron slag as a substitute for coarse aggregate in geopolymer concrete as an anti-radiation material. In this program, 45 cylindrical 15 × 30 cm test objects were used. Treatment of the specimens was carried out by immersing them in a pool for 7 days, 14 days, and 28 days. Variations in iron slag in this study were taken at 0%, 20%, 25%, 30% and 35%. The radiation test is carried out by exposing the test object to X-rays, which is carried out in the Radiotherapy room at the Dharmais Cancer Hospital, Jakarta The results of radiation tests with a dose of 100 kV, geopolymer concrete with 35% iron slag was able to absorb 17.63% higher radiation than normal test objects without slag. Apart from that, the addition of iron slag with a content of 35% was able to reduce the reduction in compressive strength of concrete exposed to radiation. It was recorded that with 35% slag, there was a reduction in compressive strength of 5.09% after radiation. Based on its specific gravity, geopolymer concrete with 35% iron slag produces a specific gravity of up to 3,162.34 kg/m3, or an increase of 31.76% from the specific gravity of normal concrete.

Page(s): 1416-1420

DOI: DOI not available

Published: Journal: ARPN Journal of Engineering and Applied Sciences, Volume: 19, Issue: 23, Year: 2024

Keywords:

Radiation , compressive strength , Coarse aggregate , geopolymer concrete , iron slag

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