Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-heat early-strength cementing material and preparation method thereof
The invention discloses a low-heat early-strength cementing material and a preparation method thereof, and solves the problem of contradiction between early strength and low hydration heat of a silicate-based cementing material clinker mineral composition system in the prior art on the premise of not depending on an additional modified material. The low-heat early-strength cementing material disclosed by the invention is prepared by mixing cement clinker with gypsum and grinding by using a raw material mill, wherein the cement clinker comprises the following raw materials: 70-85% of a calcium raw material; 1-20% of a siliceous raw material; 0-20% of an aluminum raw material; 0-10% of an iron correction raw material; 0.1-5% of an auxiliary agent; and the auxiliary agent is selected from fluorgypsum, phosphogypsum, fluorine slag and manganese slag. According to the invention, low-temperature calcination is realized under the action of the auxiliary agent, the energy consumption of sintering is reduced, and the carbon emission is reduced; the invention changes the crystal structure and crystal form of minerals, realizes the synergy of early strength and low hydration heat, improves the construction performance of the cementing material, reduces the temperature stress inside and outside the concrete, improves the volume stability of the concrete, reduces the anti-cracking risk, and realizes long service life.
本发明公开了一种低热早强胶凝材料及其制备方法，解决现有技术中硅酸基胶凝材料熟料矿物组成体系以及不依靠外加改性材料前提下，早强与低水化热相矛盾的问题。本发明的低热早强胶凝材料由水泥熟料掺入石膏经生料磨粉磨制成，水泥熟料包括如下原料：钙质原料70～85％；硅质原料1～20％；铝质原料0～20％；铁质校正原料0～10％；助剂0.1～5％；助剂选自氟石膏、磷石膏、氟渣、锰渣。本发明在助剂的作用下实现了低温煅烧，降低了烧成能耗，降低了碳排放；改变了矿物的晶体结构和晶型，实现了早强与低水化热相协同，提高了胶凝材料施工性能，降低混凝土内外的温度应力，提高混凝土体积稳定性，降低抗裂风险，实现长寿命。
Low-heat early-strength cementing material and preparation method thereof
The invention discloses a low-heat early-strength cementing material and a preparation method thereof, and solves the problem of contradiction between early strength and low hydration heat of a silicate-based cementing material clinker mineral composition system in the prior art on the premise of not depending on an additional modified material. The low-heat early-strength cementing material disclosed by the invention is prepared by mixing cement clinker with gypsum and grinding by using a raw material mill, wherein the cement clinker comprises the following raw materials: 70-85% of a calcium raw material; 1-20% of a siliceous raw material; 0-20% of an aluminum raw material; 0-10% of an iron correction raw material; 0.1-5% of an auxiliary agent; and the auxiliary agent is selected from fluorgypsum, phosphogypsum, fluorine slag and manganese slag. According to the invention, low-temperature calcination is realized under the action of the auxiliary agent, the energy consumption of sintering is reduced, and the carbon emission is reduced; the invention changes the crystal structure and crystal form of minerals, realizes the synergy of early strength and low hydration heat, improves the construction performance of the cementing material, reduces the temperature stress inside and outside the concrete, improves the volume stability of the concrete, reduces the anti-cracking risk, and realizes long service life.
本发明公开了一种低热早强胶凝材料及其制备方法，解决现有技术中硅酸基胶凝材料熟料矿物组成体系以及不依靠外加改性材料前提下，早强与低水化热相矛盾的问题。本发明的低热早强胶凝材料由水泥熟料掺入石膏经生料磨粉磨制成，水泥熟料包括如下原料：钙质原料70～85％；硅质原料1～20％；铝质原料0～20％；铁质校正原料0～10％；助剂0.1～5％；助剂选自氟石膏、磷石膏、氟渣、锰渣。本发明在助剂的作用下实现了低温煅烧，降低了烧成能耗，降低了碳排放；改变了矿物的晶体结构和晶型，实现了早强与低水化热相协同，提高了胶凝材料施工性能，降低混凝土内外的温度应力，提高混凝土体积稳定性，降低抗裂风险，实现长寿命。
Low-heat early-strength cementing material and preparation method thereof
一种低热早强胶凝材料及其制备方法
ZHONG WEN (Autor:in) / XU YIGANG (Autor:in) / CHEN XUEMEI (Autor:in) / CHONG NA (Autor:in) / ZHANG LINGZHI (Autor:in) / ZHANG YUHANG (Autor:in) / YANG HUAN (Autor:in)
02.08.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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