| dc.description.abstract | The slags produced electric arc furnace (EAF) steel manufacture are of two types. The process generates two kinds of slags：(1) oxidative slag, with oxidizers and oxygen, resulting from the scrap steel, and (2) reductive slag, with reductants, generated to remove the exceeding oxygen and oxidizers. The paper is focused on the reductive slag.
First, with different fineness and weight of cement in the reductive slag, determined the compressive strength development. Then, focused on the four factors：fineness, weight of cement, water/binder ratio, and curing temperature. The influence of reductive slag on the cement hydration and the compressive strength development of mortars was investigated. Finally, found the significance level of factor, in order to estimate the value of application in the reductive slag.
Test results confirm that reductive slag concrete tends to elevate the curing temperature and decrease the water/binder ratio significantly at early age. Data also demonstrate that an elevation weight of cement reduces the compressive strength of the concrete, especially at early age. The fineness of the reductive slag is not significance. High quality mortars and concretes with 20% by weight of cement. | en_US |