A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Carbon curing cementing material, preparation method and application
The invention discloses a carbon-cured cementing material, a preparation method and application, and relates to the technical field of building materials. The method comprises the following steps: 1) uniformly mixing 45-60wt% of waste concrete micro powder and 55-40wt% of carbide slag, grinding the waste concrete micro powder and the carbide slag into raw material powder, and then tabletting to obtain raw material sheets; (2) placing the raw material sheets prepared in the step (1) at the temperature of 1150-1250 DEG C, and calcining for 1-2 hours to obtain a blocky cementing material; and (3) grinding the blocky cementing material prepared in the step (2) until the specific surface area is 350-450m < 2 >/kg to obtain the carbon-cured cementing material. The carbon-cured cementing material provided by the invention cannot be hydrated and hardened, but can obtain excellent mechanical properties through short-term carbonization maintenance. The early strength is high, the later strength is continuously increased, and the mechanical property is slightly superior to that of ordinary Portland cement which is continuously hydrated in the later period and can have higher strength.
一种碳固化胶凝材料、制备方法及应用，涉及建筑材料技术领域。按以下步骤进行，1）、将废旧混凝土微粉和电石渣混合均匀，其中，废旧混凝土微粉45～60wt％，电石渣55～40wt％，粉磨成生料粉，然后进行压片，得到生料片；2）、将步骤1）制得的所述生料片置于1150~1250℃温度下，煅烧时间1~2小时，得到块状胶凝材料；3）、将步骤2）制得的所述块状胶凝材料粉磨至比表面积为350～450m2/kg，得碳固化胶凝材料。本发明中的碳固化胶凝材料不能水化硬化，但能够通过短期的碳化养护获得优异的力学性能。早期强度高、后期强度持续增长，力学性能稍优于普通硅酸盐水泥后期继续水化可以有更高的强度。
Carbon curing cementing material, preparation method and application
The invention discloses a carbon-cured cementing material, a preparation method and application, and relates to the technical field of building materials. The method comprises the following steps: 1) uniformly mixing 45-60wt% of waste concrete micro powder and 55-40wt% of carbide slag, grinding the waste concrete micro powder and the carbide slag into raw material powder, and then tabletting to obtain raw material sheets; (2) placing the raw material sheets prepared in the step (1) at the temperature of 1150-1250 DEG C, and calcining for 1-2 hours to obtain a blocky cementing material; and (3) grinding the blocky cementing material prepared in the step (2) until the specific surface area is 350-450m < 2 >/kg to obtain the carbon-cured cementing material. The carbon-cured cementing material provided by the invention cannot be hydrated and hardened, but can obtain excellent mechanical properties through short-term carbonization maintenance. The early strength is high, the later strength is continuously increased, and the mechanical property is slightly superior to that of ordinary Portland cement which is continuously hydrated in the later period and can have higher strength.
一种碳固化胶凝材料、制备方法及应用，涉及建筑材料技术领域。按以下步骤进行，1）、将废旧混凝土微粉和电石渣混合均匀，其中，废旧混凝土微粉45～60wt％，电石渣55～40wt％，粉磨成生料粉，然后进行压片，得到生料片；2）、将步骤1）制得的所述生料片置于1150~1250℃温度下，煅烧时间1~2小时，得到块状胶凝材料；3）、将步骤2）制得的所述块状胶凝材料粉磨至比表面积为350～450m2/kg，得碳固化胶凝材料。本发明中的碳固化胶凝材料不能水化硬化，但能够通过短期的碳化养护获得优异的力学性能。早期强度高、后期强度持续增长，力学性能稍优于普通硅酸盐水泥后期继续水化可以有更高的强度。
Carbon curing cementing material, preparation method and application
一种碳固化胶凝材料、制备方法及应用
FANG JINGRUI (author) / LIU SONGHUI (author) / DENG PIN (author) / SHI XINCHAO (author) / CHEN GE (author) / RONG PENGJIE (author) / ZHANG CHENG (author) / GUAN XUEMAO (author)
2023-01-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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