Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multi-element solid waste recycled aggregate and preparation process thereof
The invention discloses a multi-element solid waste recycled aggregate and a preparation process thereof. The multi-element solid waste recycled aggregate is prepared by taking ardealite, fly ash, slag powder and a water reducing agent as raw materials and utilizing an alkaline activator, an active silicon-aluminum mineral admixture and an organic adhesive through a disc granulation balling process. Through carrying out a disc granulation pelletizing technology and natural hydration to generate ettringite and C-S-H gel to wrap and bond the remaining undissolved ardealite and the admixture together, thereby obtaining the novel building material. After the recycled aggregate is naturally hydrated and formed, the primarily formed aggregate is put into a steam curing box with the temperature being 100 +/-2 DEG C and the humidity being 95% or above so as to accelerate generation of C-S-H particles. The hydration rate is increased, the performance of the recycled aggregate is improved, the water absorption rate of the recycled aggregate is reduced, the water consumption of the recycled concrete is reduced, the strength of the recycled aggregate concrete is obviously improved, and the utilization rate of the recycled aggregate in the concrete is increased.
本发明公开了一种多元固废再生骨料，还公开了一种多元固废再生骨料的制备工艺，包括以磷石膏、粉煤灰、矿渣粉、减水剂为原料，其利用碱性激发剂、活性硅铝矿物掺和料和有机粘合剂，通过圆盘造粒成球工艺，经自然水化生成钙矾石和C‑S‑H凝胶将剩余未溶解的磷石膏和掺和料进行包裹并胶结在一起的新型建筑材料。待再生骨料自然水化后成型，将初成型的骨料放入温度为100±2℃湿度为95％以上的蒸养箱里，以加速C‑S‑H颗粒生成。提高了水化率，改善再生骨料的性能，降低再生骨料吸水率，减少再生混凝土用水量，同时明显提高再生骨料混凝土强度，提高再生骨料在混凝土中的利用率。
Multi-element solid waste recycled aggregate and preparation process thereof
The invention discloses a multi-element solid waste recycled aggregate and a preparation process thereof. The multi-element solid waste recycled aggregate is prepared by taking ardealite, fly ash, slag powder and a water reducing agent as raw materials and utilizing an alkaline activator, an active silicon-aluminum mineral admixture and an organic adhesive through a disc granulation balling process. Through carrying out a disc granulation pelletizing technology and natural hydration to generate ettringite and C-S-H gel to wrap and bond the remaining undissolved ardealite and the admixture together, thereby obtaining the novel building material. After the recycled aggregate is naturally hydrated and formed, the primarily formed aggregate is put into a steam curing box with the temperature being 100 +/-2 DEG C and the humidity being 95% or above so as to accelerate generation of C-S-H particles. The hydration rate is increased, the performance of the recycled aggregate is improved, the water absorption rate of the recycled aggregate is reduced, the water consumption of the recycled concrete is reduced, the strength of the recycled aggregate concrete is obviously improved, and the utilization rate of the recycled aggregate in the concrete is increased.
本发明公开了一种多元固废再生骨料，还公开了一种多元固废再生骨料的制备工艺，包括以磷石膏、粉煤灰、矿渣粉、减水剂为原料，其利用碱性激发剂、活性硅铝矿物掺和料和有机粘合剂，通过圆盘造粒成球工艺，经自然水化生成钙矾石和C‑S‑H凝胶将剩余未溶解的磷石膏和掺和料进行包裹并胶结在一起的新型建筑材料。待再生骨料自然水化后成型，将初成型的骨料放入温度为100±2℃湿度为95％以上的蒸养箱里，以加速C‑S‑H颗粒生成。提高了水化率，改善再生骨料的性能，降低再生骨料吸水率，减少再生混凝土用水量，同时明显提高再生骨料混凝土强度，提高再生骨料在混凝土中的利用率。
Multi-element solid waste recycled aggregate and preparation process thereof
多元固废再生骨料及其制备工艺
QIN LINGLING (Autor:in) / LI MAOSEN (Autor:in) / LIU HAORAN (Autor:in) / LIU JUNHAN (Autor:in) / LI WANLIN (Autor:in)
23.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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