A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Phosphoric acid-based geopolymer modified recycled aggregate and modification strengthening method thereof
The invention relates to a phosphoric acid-based geopolymer modified recycled aggregate and a modification strengthening method thereof. The method comprises the following steps: firstly, preparing a phosphoric acid excitation solution from phosphoric acid, an aluminum source material and water, then uniformly mixing the phosphoric acid excitation solution with a high-activity mineral admixture to obtain a phosphoric acid geopolymer slurry, then crushing, screening, washing and grinding construction wastes to obtain a recycled aggregate, finally adding the recycled aggregate into the phosphoric acid geopolymer slurry for dipping modification, taking out, heating and curing, and thus obtaining the high-activity aluminum-based composite material. The phosphoric acid-based geopolymer modified recycled aggregate is obtained. According to the invention, the phosphoric acid geopolymer is utilized to modify and reinforce the recycled aggregate from the building solid waste, on one hand, loose mortar in the recycled aggregate is reduced, and on the other hand, holes and cracks in the recycled aggregate are well filled and reinforced, so that the mechanical property of the recycled aggregate is improved, and the service life of the recycled aggregate is prolonged. The crushing value and the Lauar abrasion are obviously reduced, so that the recycling problem of the recycled aggregate is solved, and the resource utilization problem of solid wastes such as slag powder is solved.
本发明涉及一种磷酸基地聚合物改性再生骨料及其改性强化方法。首先利用磷酸、铝源材料、水制备磷酸激发液，然后将其与高活性矿物掺合料混合均匀得到磷酸地聚合物浆液，接着将建筑垃圾破碎、筛分、冲洗、研磨得到再生骨料，最后将再生骨料加入到磷酸地聚合物浆液中浸渍改性，取出后加热养生，得到磷酸基地聚合物改性再生骨料。本发明利用磷酸地聚合物对源自建筑固废的再生骨料进行改性强化处理，一方面减少了再生骨料中的松散砂浆，另一方面对再生骨料中的孔洞和裂纹起到了较好的填充、增强作用，提升了再生骨料的力学性能，使其压碎值与洛杉矶磨耗明显降低，不仅解决了再生骨料的再利用问题，而且解决了矿渣粉等固废的资源化利用问题。
Phosphoric acid-based geopolymer modified recycled aggregate and modification strengthening method thereof
The invention relates to a phosphoric acid-based geopolymer modified recycled aggregate and a modification strengthening method thereof. The method comprises the following steps: firstly, preparing a phosphoric acid excitation solution from phosphoric acid, an aluminum source material and water, then uniformly mixing the phosphoric acid excitation solution with a high-activity mineral admixture to obtain a phosphoric acid geopolymer slurry, then crushing, screening, washing and grinding construction wastes to obtain a recycled aggregate, finally adding the recycled aggregate into the phosphoric acid geopolymer slurry for dipping modification, taking out, heating and curing, and thus obtaining the high-activity aluminum-based composite material. The phosphoric acid-based geopolymer modified recycled aggregate is obtained. According to the invention, the phosphoric acid geopolymer is utilized to modify and reinforce the recycled aggregate from the building solid waste, on one hand, loose mortar in the recycled aggregate is reduced, and on the other hand, holes and cracks in the recycled aggregate are well filled and reinforced, so that the mechanical property of the recycled aggregate is improved, and the service life of the recycled aggregate is prolonged. The crushing value and the Lauar abrasion are obviously reduced, so that the recycling problem of the recycled aggregate is solved, and the resource utilization problem of solid wastes such as slag powder is solved.
本发明涉及一种磷酸基地聚合物改性再生骨料及其改性强化方法。首先利用磷酸、铝源材料、水制备磷酸激发液，然后将其与高活性矿物掺合料混合均匀得到磷酸地聚合物浆液，接着将建筑垃圾破碎、筛分、冲洗、研磨得到再生骨料，最后将再生骨料加入到磷酸地聚合物浆液中浸渍改性，取出后加热养生，得到磷酸基地聚合物改性再生骨料。本发明利用磷酸地聚合物对源自建筑固废的再生骨料进行改性强化处理，一方面减少了再生骨料中的松散砂浆，另一方面对再生骨料中的孔洞和裂纹起到了较好的填充、增强作用，提升了再生骨料的力学性能，使其压碎值与洛杉矶磨耗明显降低，不仅解决了再生骨料的再利用问题，而且解决了矿渣粉等固废的资源化利用问题。
Phosphoric acid-based geopolymer modified recycled aggregate and modification strengthening method thereof
磷酸基地聚合物改性再生骨料及其改性强化方法
XIE JUN (author) / LI MENGLIN (author) / WU SHAOPENG (author) / LIU QUANTAO (author) / ZHANG DENGFENG (author) / LI CHAO (author) / NIU CHANGCHANG (author) / CHEN JUNLIN (author)
2024-03-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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