Vol. 11 No. 6 (2021): Tạp chí Vật liệu & Xây dựng
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Tạp chí Vật liệu & Xây dựng - Bộ Xây dựng

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Development of an eco-friendly binder using raw material of industrial by-product

Phuoc Huynh Trong , Tung Luu Hoang , Toan Bui Minh , Khang Lam Tri

Keywords:

Sulfate-activated binder
Ground granulated blast-funance slag
Na2SO4
Setting time
Compressive strength
Drying shrinkage

Abstract

The present study aims to evaluate the potential use of ground granulated blast-furnace slag in thedevelopment of an innovative sulfate-activated binder, which has similar properties toplain Portlandcement paste and can be used to replace cement in construction activities. The effects of Na2SO4 contents(1.5%, 3%, 4.5%, 6%, and 7.5% by mass of slag) as an activator on engineering properties of the sulfate-activated binder were investigated through the tests of flowability, setting time, compressive and flexural strengths, water absorption, and drying shrinkage. The experimental results show that the Na2SO4 contenthad significant influences on all of the engineering properties of the binders. Increasing the Na2SO4 contentresulted in reducing flowability, setting time, and water absorption, while increasing the strength anddrying shrinkage of the sulfate-activated samples. The test results further indicate that using 7.5% Na2SO4 provided a significant improvement in the engineering properties of the newly developed binders.

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How to Cite

Huynh Trong, H. T. ., Luu Hoang, L. H. ., Bui Minh, B. M., & Lam Tri, L. T. (2021). Development of an eco-friendly binder using raw material of industrial by-product. Tạp Chí Vật liệu & Xây dựng - Bộ Xây dựng, 11(6), Trang 35 – Trang 41. https://doi.org/10.54772/jomc.6.2021.207

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