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Phosphogypsum-waste concrete composite cementing material for roads and preparation method of phosphogypsum-waste concrete composite cementing material
According to the phosphogypsum-waste concrete composite cementing material for the road and the preparation method of the phosphogypsum-waste concrete composite cementing material, waste concrete recycled powder and phosphogypsum are compounded for use, and the multi-level process synergistic effect of specific microbiota treatment, airflow suspension aggregate, a modifier and the like is achieved; and the micro powder is obviously changed in particle morphology, chemical activity and structural characteristics. The obtained cementing material is more uniform in particle, smooth in surface and more compact in structure, and impurities are reduced; the internal potential volcanic ash activity is excited, the chemical activity is obviously improved, and the material can better participate in hydration reaction; more stable and firmer combination with other road building materials is formed, and the durability and mechanical property are remarkably enhanced, so that the overall stability and the service life of a road are improved, and the cement is completely replaced to be applied to road engineering. And meanwhile, the reduction and recycling application of the phosphogypsum and the waste concrete regenerated powder is realized.
本发明公开了用于道路的磷石膏‑废弃混凝土复合胶凝材料及其制备方法，通过废弃混凝土再生粉和磷石膏的复配使用，在特定微生物群处理、气流悬浮骨料和改性剂等多层次的工艺协同作用，使微粉在颗粒形态、化学活性和结构特性上均发生显著变化。本发明得到的胶凝材料的颗粒更为均匀、表面光滑，结构更加致密，杂质减少；其内部潜在的火山灰活性被激发，化学活性显著提升，能够更好地参与水化反应；且与其他道路建筑材料形成更加稳定和牢固的结合，耐久性和力学性能得到显著增强，从而提高了道路的整体稳定性和使用寿命，以完全替代水泥应用于道路工程中。同时实现了磷石膏和废弃混凝土再生粉的减量化和资源化应用。
Phosphogypsum-waste concrete composite cementing material for roads and preparation method of phosphogypsum-waste concrete composite cementing material
According to the phosphogypsum-waste concrete composite cementing material for the road and the preparation method of the phosphogypsum-waste concrete composite cementing material, waste concrete recycled powder and phosphogypsum are compounded for use, and the multi-level process synergistic effect of specific microbiota treatment, airflow suspension aggregate, a modifier and the like is achieved; and the micro powder is obviously changed in particle morphology, chemical activity and structural characteristics. The obtained cementing material is more uniform in particle, smooth in surface and more compact in structure, and impurities are reduced; the internal potential volcanic ash activity is excited, the chemical activity is obviously improved, and the material can better participate in hydration reaction; more stable and firmer combination with other road building materials is formed, and the durability and mechanical property are remarkably enhanced, so that the overall stability and the service life of a road are improved, and the cement is completely replaced to be applied to road engineering. And meanwhile, the reduction and recycling application of the phosphogypsum and the waste concrete regenerated powder is realized.
本发明公开了用于道路的磷石膏‑废弃混凝土复合胶凝材料及其制备方法，通过废弃混凝土再生粉和磷石膏的复配使用，在特定微生物群处理、气流悬浮骨料和改性剂等多层次的工艺协同作用，使微粉在颗粒形态、化学活性和结构特性上均发生显著变化。本发明得到的胶凝材料的颗粒更为均匀、表面光滑，结构更加致密，杂质减少；其内部潜在的火山灰活性被激发，化学活性显著提升，能够更好地参与水化反应；且与其他道路建筑材料形成更加稳定和牢固的结合，耐久性和力学性能得到显著增强，从而提高了道路的整体稳定性和使用寿命，以完全替代水泥应用于道路工程中。同时实现了磷石膏和废弃混凝土再生粉的减量化和资源化应用。
Phosphogypsum-waste concrete composite cementing material for roads and preparation method of phosphogypsum-waste concrete composite cementing material
用于道路的磷石膏-废弃混凝土复合胶凝材料及其制备方法
WANG CHAOQIANG (author) / ZENG ZEYU (author) / YING YAN (author) / LIU CHUANBEI (author)
2024-12-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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