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Sustainability 2016, 8(4), 403; doi:10.3390/su8040403

Assessment of Construction Cost Saving by Concrete Mixing the Activator Material

Building and Urban Research Institute, Korea Institute of Civil Engineering and Building Technology, Daehwa-dong 283, Goyandae-Ro, ILsanseo-Gu, Goyang-Si, Gyeonggi-Do 10223, Korea
Academic Editor: Muge Mukaddes Darwish
Received: 5 February 2016 / Revised: 1 April 2016 / Accepted: 8 April 2016 / Published: 23 April 2016
(This article belongs to the Section Sustainable Engineering and Science)
View Full-Text   |   Download PDF [2299 KB, uploaded 23 April 2016]   |  

Abstract

Studies which reduce cement usage, develop an alternative by partial replacement of cement with blast-furnace slag, fly ash, or such industrial byproducts, and evaluate the environmental load and economic value of concrete mixed with such are in high demand. In this study, A-BFS (Activator Blast Furnace Slag), which is mixed with an activator in order to induce early-age strength manifestation of BFS mixed concrete was used to execute a physical property evaluation of concrete. This study first conducted physical property tests for compression strength of concrete that partially replaced OPC (ordinary Portland cement) with A-BFS and executed a comparison/analysis with 100% OPC. It was thought that if concrete early strength is manifested through this process when applied to RC (Reinforced Concrete) building, at most a three to four day construction cycle would be possible, according to which the economic value of the construction period reduction was evaluated. For this evaluation, general apartment houses (Case 1) were taken as the evaluation subject, and for comparison, Cases 2, 3, and 4 were set up by the mix ratio of A-BFS, and the economic value evaluation range was established. As a result, it was found that Case 2 had no change from Case 1, while Case 3 saved about 106,654,762 KRW (Korea Won) and Case 4 saved about 159,982,143 KRW. View Full-Text
Keywords: construction cost; apartment houses; concrete; activator material; blast furnace slag construction cost; apartment houses; concrete; activator material; blast furnace slag
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Kim, T.H. Assessment of Construction Cost Saving by Concrete Mixing the Activator Material. Sustainability 2016, 8, 403.

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