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A platform for research: civil engineering, architecture and urbanism
Preparation process of modified steel slag micro-powder concrete
The invention relates to a preparation process of modified steel slag micropowder concrete, which comprises the following steps: collecting high-temperature steel slag, and spraying water on the high-temperature steel slag in a stuffy tank; mixing grinding aids with different proportions into the steel slag, and mixing and grinding together; chemical components are added into the steel slag to react with inactive substances or steel slag hydrates in the steel slag, so that a hydration environment required by continuous hydration of the steel slag is provided; the hydration environment of the slag is changed under high-temperature and high-pressure conditions, Si-0 bonds and AI-0 bonds of the steel slag are broken under the action of thermal stress, and the hydration reaction rate is increased, so that the activity of the steel slag is remarkably improved; preparing various composition materials for preparing the concrete; and the raw materials forming the concrete are stirred through a concrete stirrer. According to the method, the activity of the steel slag micro-powder is excited by overlapping a proper amount of neutral composite chemical exciting agent, so that the steel slag micro-powder replaces part of cement clinker to serve as a cementing material to be applied to a pavement base layer, and the method has important significance on resource utilization of the steel slag.
本发明涉及一种改性钢渣微粉混凝土制备工艺，包括：收集高温钢渣，对高温钢渣在热闷罐进行喷水；在钢渣中掺入不同比列的助磨剂并一起混磨；向钢渣中添加化学组分与钢渣中非活性物质或钢渣水化物发生反应，提供钢渣持续水化所需的水化环境；在高温高压条件下改变渣的水化环境，钢渣在热应力的作用下，Si‑0键和AI‑0键发生断裂，水化反应速率加快，从而显著提高钢渣活性；准备制备混凝土的各种组成材料；通过混凝土搅拌机对组成混凝土的各组成原料进行搅拌处理。本文通过迭择适宜、适量的中性复合化学激发剂激发钢渣微粉的活性，使钢渣微粉替代部分水泥熟料作为胶凝材料应用于路面基层中，对纲渣的资源化利用具有重要意义。
Preparation process of modified steel slag micro-powder concrete
The invention relates to a preparation process of modified steel slag micropowder concrete, which comprises the following steps: collecting high-temperature steel slag, and spraying water on the high-temperature steel slag in a stuffy tank; mixing grinding aids with different proportions into the steel slag, and mixing and grinding together; chemical components are added into the steel slag to react with inactive substances or steel slag hydrates in the steel slag, so that a hydration environment required by continuous hydration of the steel slag is provided; the hydration environment of the slag is changed under high-temperature and high-pressure conditions, Si-0 bonds and AI-0 bonds of the steel slag are broken under the action of thermal stress, and the hydration reaction rate is increased, so that the activity of the steel slag is remarkably improved; preparing various composition materials for preparing the concrete; and the raw materials forming the concrete are stirred through a concrete stirrer. According to the method, the activity of the steel slag micro-powder is excited by overlapping a proper amount of neutral composite chemical exciting agent, so that the steel slag micro-powder replaces part of cement clinker to serve as a cementing material to be applied to a pavement base layer, and the method has important significance on resource utilization of the steel slag.
本发明涉及一种改性钢渣微粉混凝土制备工艺，包括：收集高温钢渣，对高温钢渣在热闷罐进行喷水；在钢渣中掺入不同比列的助磨剂并一起混磨；向钢渣中添加化学组分与钢渣中非活性物质或钢渣水化物发生反应，提供钢渣持续水化所需的水化环境；在高温高压条件下改变渣的水化环境，钢渣在热应力的作用下，Si‑0键和AI‑0键发生断裂，水化反应速率加快，从而显著提高钢渣活性；准备制备混凝土的各种组成材料；通过混凝土搅拌机对组成混凝土的各组成原料进行搅拌处理。本文通过迭择适宜、适量的中性复合化学激发剂激发钢渣微粉的活性，使钢渣微粉替代部分水泥熟料作为胶凝材料应用于路面基层中，对纲渣的资源化利用具有重要意义。
Preparation process of modified steel slag micro-powder concrete
一种改性钢渣微粉混凝土制备工艺
CHEN HONGYOU (author)
2022-07-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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