Abstract The effect of Nano-Al 2 O 3 on the mechanical properties alkali activated Granulated Blast Furnace Slag (GBFS) materials was studied. results showed that addition can significantly increased 28-day compressive strength. strength control slurry without GBFS just from 7.4 MPa to 8.5 (14.86% increase) d 28 curing time, while as dosage 1% 5%, increase varied 39.62% 71.90% after 28d period....

This paper presents the strength and durability of cement mortars using 0–100% ferronickel slag (FNS) as replacement of natural sand and 30% fly ash or ground granulated blast furnace slag (GGBFS) as cement replacement. The maximum mortar compressive strength was achieved with 50% sand replacement by FNS. Durability was evaluated by the changes in compressive strength and mass of mortar specime...

In order to examine the effect of ageing on P removal capacity, the phosphorus (P) removal capacity of three types of slag, argon oxygen decarburisation slag (AOD), blast furnace slag (BFS) and electric arc furnace slag (EAF), was examined after 0, 10, 13 and 19 months in batch experiments. The results showed that ageing reduced P removal capacity, e.g. by 78.4% for 19-month-old AOD slag. For B...

The research reported herein studied the permeability of concrete containing recycled-concrete aggregate (RA), superfine phosphorous slag (PHS), and ground granulated blast-furnace slag (GGBS) with and without stress. Test results showed that the chloride diffusion coefficient of RA concrete (RAC) without external loads decreased with time, and the permeability of RAC is much lower than that of...

In this work, the effects of slag addition on geopolymerization process and sulfate resistance alkali-activated cement were studied. The substitution metakaolin by increased reactivity precursors, contributing to a higher reaction rate accelerating process. mechanical properties significantly improved with incorporation slag. results show that transformation gel phases development pore structur...

Blast furnace slag is a key large-tonnage waste product of metallurgical production, which considered to be promising alternative material in construction. In order determine the scope potential use as marketable product, it necessary study its structure and composition, determined by means modern analytical instrumental methods. This paper analyzes application Fourier transform infrared spectr...