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Modification method of recycled aggregate
The invention relates to a modification method of recycled aggregate, which comprises the following steps: adding water into a heating container, respectively adding a water reducing agent, a retarder, an early strength agent, a defoaming agent and a thickening agent, dissolving to obtain a mixed solution, adding cement and an admixture into a stirring container, stirring, and uniformly mixing to obtain the recycled aggregate. Slowly adding the mixed solution in the heating container into a stirring container, stirring until the mixed solution is uniformly mixed to obtain modified slurry, adding recycled aggregate into the stirring container, infiltrating for 5-10 minutes, and then taking out to obtain modified recycled aggregate; according to the scheme, the modified slurry is short in setting time, the modification time can be shortened, the modification efficiency is high, the raw materials are low in price and easy to obtain, after the aggregate is modified, the compressive strength is improved by 40%, the dynamic elastic modulus is improved by 15%, the crushing value is reduced by 30%, the sulphoaluminate erosion resistance is improved by 50%, surface cracks are obviously reduced under aggregate microscopic observation, and the crack resistance is obviously enhanced.
本发明涉及一种再生骨料的改性方法，将水加入到加热容器中，然后分别加入减水剂、缓凝剂、早强剂、消泡剂和增稠剂进行溶解得到混合溶液，将水泥、掺合料加入到搅拌容器中进行搅拌，使其混合均匀，将加热容器中的混合溶液缓慢加入到搅拌容器中，并搅拌直至混合均匀得到改性浆体，将再生骨料加入到搅拌容器中，浸润5‑10分钟，然后取出即可得到改性的再生骨料；本方案改性浆体凝结时间短，可以缩短改性时间，改性效率较高，原料价格便宜易得，骨料改性后，抗压强度提高40％，动弹模量提高15％，压碎值降低30％，抗硫铝酸盐侵蚀能力提高50％，骨料显微观察下表面裂纹明显减少，显著增强抗裂能力。
Modification method of recycled aggregate
The invention relates to a modification method of recycled aggregate, which comprises the following steps: adding water into a heating container, respectively adding a water reducing agent, a retarder, an early strength agent, a defoaming agent and a thickening agent, dissolving to obtain a mixed solution, adding cement and an admixture into a stirring container, stirring, and uniformly mixing to obtain the recycled aggregate. Slowly adding the mixed solution in the heating container into a stirring container, stirring until the mixed solution is uniformly mixed to obtain modified slurry, adding recycled aggregate into the stirring container, infiltrating for 5-10 minutes, and then taking out to obtain modified recycled aggregate; according to the scheme, the modified slurry is short in setting time, the modification time can be shortened, the modification efficiency is high, the raw materials are low in price and easy to obtain, after the aggregate is modified, the compressive strength is improved by 40%, the dynamic elastic modulus is improved by 15%, the crushing value is reduced by 30%, the sulphoaluminate erosion resistance is improved by 50%, surface cracks are obviously reduced under aggregate microscopic observation, and the crack resistance is obviously enhanced.
本发明涉及一种再生骨料的改性方法，将水加入到加热容器中，然后分别加入减水剂、缓凝剂、早强剂、消泡剂和增稠剂进行溶解得到混合溶液，将水泥、掺合料加入到搅拌容器中进行搅拌，使其混合均匀，将加热容器中的混合溶液缓慢加入到搅拌容器中，并搅拌直至混合均匀得到改性浆体，将再生骨料加入到搅拌容器中，浸润5‑10分钟，然后取出即可得到改性的再生骨料；本方案改性浆体凝结时间短，可以缩短改性时间，改性效率较高，原料价格便宜易得，骨料改性后，抗压强度提高40％，动弹模量提高15％，压碎值降低30％，抗硫铝酸盐侵蚀能力提高50％，骨料显微观察下表面裂纹明显减少，显著增强抗裂能力。
Modification method of recycled aggregate
一种再生骨料的改性方法
GONG MINGZI (author) / CHEN CHEN (author) / WANG LINGQIAO (author) / RAO XIANPENG (author) / WANG TAO (author) / SU YIFAN (author) / YU TINGTING (author) / YAN JIANHANG (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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