Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
All-solid-waste-based composite phosphate cementing material and preparation method thereof
The invention relates to an all-solid-waste-based composite phosphate cementing material which comprises the following raw materials in parts by mass: 30-80 parts of waste magnesia carbon bricks, 20-55 parts of converter steel slag, 1-10 parts of zinc-containing dust and 15-60 parts of phosphate. 1-8 parts of a retarder and 1.5-5 parts of a water reducing agent; 2-7 parts of a steel slag modified grinding agent and 1.5-4 parts of triethanolamine. The method comprises the following steps: by taking two solid wastes, namely waste magnesia carbon bricks and steel slag, as main raw materials, carrying out collaborative roasting on the waste magnesia carbon bricks and zinc-containing dust, and reacting inert zinc ferrite phase in the dust with residual carbon in the waste magnesia carbon bricks to generate active FeO and ZnO; meanwhile, the steel slag is subjected to acid modification to improve the reaction activity; and compounding the two modified raw materials for use, and reacting with phosphate to prepare the all-solid waste-based composite phosphate cementing material. The prepared all-solid-waste-based composite phosphate cementing material is short in setting time, high in compressive strength, excellent in water resistance and suitable for the field of rush repair and construction of cement concrete structures.
本发明涉及一种全固废基复合磷酸盐胶凝材料，包括以下质量份的原料：废镁碳砖30‑80份，转炉钢渣20‑55份，含锌粉尘1‑10份，磷酸盐15～60份；缓凝剂1‑8份、减水剂1.5‑5份；钢渣改性粉磨剂2‑7份，三乙醇胺1.5‑4份。本发明以废镁碳砖和钢渣两种固废作为主要原料，先通过协同焙烧废镁碳砖和含锌粉尘，利用粉尘中的惰性铁酸锌相与废镁碳砖中的残碳反应，生成活性的FeO和ZnO；同时对钢渣进行酸改性提高其反应活性；再将上述两种改性后的原料复合使用与磷酸盐反应制备全固废基复合磷酸盐胶凝材料。所制备的全固废基复合磷酸盐胶凝材料凝结时间快、抗压强度高、耐水性优良，适用于水泥混凝土结构抢修抢建领域。
All-solid-waste-based composite phosphate cementing material and preparation method thereof
The invention relates to an all-solid-waste-based composite phosphate cementing material which comprises the following raw materials in parts by mass: 30-80 parts of waste magnesia carbon bricks, 20-55 parts of converter steel slag, 1-10 parts of zinc-containing dust and 15-60 parts of phosphate. 1-8 parts of a retarder and 1.5-5 parts of a water reducing agent; 2-7 parts of a steel slag modified grinding agent and 1.5-4 parts of triethanolamine. The method comprises the following steps: by taking two solid wastes, namely waste magnesia carbon bricks and steel slag, as main raw materials, carrying out collaborative roasting on the waste magnesia carbon bricks and zinc-containing dust, and reacting inert zinc ferrite phase in the dust with residual carbon in the waste magnesia carbon bricks to generate active FeO and ZnO; meanwhile, the steel slag is subjected to acid modification to improve the reaction activity; and compounding the two modified raw materials for use, and reacting with phosphate to prepare the all-solid waste-based composite phosphate cementing material. The prepared all-solid-waste-based composite phosphate cementing material is short in setting time, high in compressive strength, excellent in water resistance and suitable for the field of rush repair and construction of cement concrete structures.
本发明涉及一种全固废基复合磷酸盐胶凝材料，包括以下质量份的原料：废镁碳砖30‑80份，转炉钢渣20‑55份，含锌粉尘1‑10份，磷酸盐15～60份；缓凝剂1‑8份、减水剂1.5‑5份；钢渣改性粉磨剂2‑7份，三乙醇胺1.5‑4份。本发明以废镁碳砖和钢渣两种固废作为主要原料，先通过协同焙烧废镁碳砖和含锌粉尘，利用粉尘中的惰性铁酸锌相与废镁碳砖中的残碳反应，生成活性的FeO和ZnO；同时对钢渣进行酸改性提高其反应活性；再将上述两种改性后的原料复合使用与磷酸盐反应制备全固废基复合磷酸盐胶凝材料。所制备的全固废基复合磷酸盐胶凝材料凝结时间快、抗压强度高、耐水性优良，适用于水泥混凝土结构抢修抢建领域。
All-solid-waste-based composite phosphate cementing material and preparation method thereof
一种全固废基复合磷酸盐胶凝材料及其制备方法
ZHANG ZENGQI (Autor:in) / MA SHANLIANG (Autor:in) / LIU XIAOMING (Autor:in) / LI SIYI (Autor:in) / SHAO YANG (Autor:in) / CAO ZHEN (Autor:in) / WANG YANLONG (Autor:in)
05.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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