Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Solid waste-based super-retarded cement as well as preparation method and application thereof
The invention belongs to the technical field of cement materials, and particularly relates to solid-waste-based super-retarded cement as well as a preparation method and application thereof. The cement comprises the following components in parts by weight: 60-68 parts of clinker, 10-14 parts of fly ash, 8-10 parts of slag powder, 2-4 parts of dihydrate gypsum, 3-4 parts of phosphogypsum, 2-4 parts of desulfurized gypsum and 4-8 parts of superfine slag powder. A certain mass ratio of sugar residue is added in the production of the clinker to improve the SO3 content of the cement clinker, the characteristics of different solid waste materials are deeply combined, industrial waste residues such as non-ferrous metal slag, sludge residue and polluted soil are cooperatively used, a large amount of solid waste materials are consumed, and the characteristics of different materials are cooperated to prepare the cement clinker with the characteristics of obviously prolonged retarding time and high stability. The solid waste-based super-retarded cement for the road base is low in production cost, simple in process and applicable to a three-layer continuous paving process of a water-stable base. The strength of the obtained cement is high, the strength grade of 42. 5 cement for the road base is met, the initial setting time is longer than 440 min, and the final setting time is longer than 590 min.
本发明属于水泥材料技术领域，尤其涉及一种固废基超缓凝水泥及其制备方法和应用。本发明所述水泥，包括以下重量份的组分：熟料60‑68份，粉煤灰10‑14份，矿渣粉8‑10份，二水石膏2‑4份，磷石膏3‑4份，脱硫石膏2‑4份，矿渣微粉4‑8份。在熟料的生产中掺加一定质量比例的糖渣提高水泥熟料的SO3含量，且深入结合不同固废材料的特性协同使用了有色金属矿渣、污泥渣、污染土等工业废渣，消耗了大量的固废材料，协同不同材料的特性制备了缓凝时间显著延长，性能指标不降低的可用于道路基层的固废基超缓凝水泥，其生产成本降低工艺简单且可适用于水稳基层三层连铺工艺。本发明所得水泥强度较高符合道路基层用42·5水泥的强度等级，初凝时间大于440min，终凝时间大于590min。
Solid waste-based super-retarded cement as well as preparation method and application thereof
The invention belongs to the technical field of cement materials, and particularly relates to solid-waste-based super-retarded cement as well as a preparation method and application thereof. The cement comprises the following components in parts by weight: 60-68 parts of clinker, 10-14 parts of fly ash, 8-10 parts of slag powder, 2-4 parts of dihydrate gypsum, 3-4 parts of phosphogypsum, 2-4 parts of desulfurized gypsum and 4-8 parts of superfine slag powder. A certain mass ratio of sugar residue is added in the production of the clinker to improve the SO3 content of the cement clinker, the characteristics of different solid waste materials are deeply combined, industrial waste residues such as non-ferrous metal slag, sludge residue and polluted soil are cooperatively used, a large amount of solid waste materials are consumed, and the characteristics of different materials are cooperated to prepare the cement clinker with the characteristics of obviously prolonged retarding time and high stability. The solid waste-based super-retarded cement for the road base is low in production cost, simple in process and applicable to a three-layer continuous paving process of a water-stable base. The strength of the obtained cement is high, the strength grade of 42. 5 cement for the road base is met, the initial setting time is longer than 440 min, and the final setting time is longer than 590 min.
本发明属于水泥材料技术领域，尤其涉及一种固废基超缓凝水泥及其制备方法和应用。本发明所述水泥，包括以下重量份的组分：熟料60‑68份，粉煤灰10‑14份，矿渣粉8‑10份，二水石膏2‑4份，磷石膏3‑4份，脱硫石膏2‑4份，矿渣微粉4‑8份。在熟料的生产中掺加一定质量比例的糖渣提高水泥熟料的SO3含量，且深入结合不同固废材料的特性协同使用了有色金属矿渣、污泥渣、污染土等工业废渣，消耗了大量的固废材料，协同不同材料的特性制备了缓凝时间显著延长，性能指标不降低的可用于道路基层的固废基超缓凝水泥，其生产成本降低工艺简单且可适用于水稳基层三层连铺工艺。本发明所得水泥强度较高符合道路基层用42·5水泥的强度等级，初凝时间大于440min，终凝时间大于590min。
Solid waste-based super-retarded cement as well as preparation method and application thereof
一种固废基超缓凝水泥及其制备方法和应用
WANG XINYANG (Autor:in) / GAO BIN (Autor:in) / GAO GUOHUA (Autor:in) / JI PING (Autor:in) / LI LIPING (Autor:in) / LI PEIHAI (Autor:in) / KAN TAO (Autor:in) / SU JIZHUANG (Autor:in) / WANG KAI (Autor:in) / WANG YEFEI (Autor:in)
01.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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