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A platform for research: civil engineering, architecture and urbanism
Self-compacting nano-modified regenerated coral aggregate concrete as well as preparation method and application thereof
The invention discloses self-compacting nano-modified regenerated coral aggregate concrete and a preparation method and application thereof.The preparation method comprises the steps that primary reinforced regenerated coral coarse and fine aggregate is prepared, a seawater solution containing second nano-silica is prepared, 2/3 of the seawater solution is added into a cementing material prepared by mixing ordinary Portland cement, silica fume and fly ash, and the self-compacting nano-modified regenerated coral aggregate concrete is prepared. Adding a first water reducing agent, adding the primary reinforced regenerated coral coarse aggregate for secondary reinforcement, adding a second water reducing agent and the residual seawater solution containing second nano silicon dioxide, adding the primary reinforced regenerated coral fine aggregate into the obtained gel-state concrete mixture, loading the mixture into a mold, standing, demolding and curing to obtain the concrete with the secondary reinforced regenerated coral fine aggregate. The self-compacting nano-modified regenerated coral aggregate concrete is obtained. The prepared concrete has the advantages of being good in early strength, high in strength, stable in chemical property, excellent in economical efficiency and environmental protection property, excellent in working performance and the like, and is suitable for island engineering.
本发明公开了一种自密实纳米改性再生珊瑚骨料混凝土及其制备方法和应用，制备方法包括制备一次强化再生珊瑚粗、细骨料，制备含第二纳米二氧化硅的海水溶液，将其2/3加入由普通硅酸盐水泥、硅灰和粉煤灰混合制得的胶凝材料中，得水泥净浆，加入第一减水剂，加一次强化再生珊瑚粗骨料二次强化，加第二减水剂和剩余的含第二纳米二氧化硅的海水溶液，所得凝胶状态的混凝土拌合物中加入一次强化再生珊瑚细骨料，装入模具、静置、脱模、养护，得自密实纳米改性再生珊瑚骨料混凝土。本发明制备的混凝土具有早强性好、强度高、化学性质稳定、经济性和环保性极佳且工作性能优良等优点，适用于岛礁工程。
Self-compacting nano-modified regenerated coral aggregate concrete as well as preparation method and application thereof
The invention discloses self-compacting nano-modified regenerated coral aggregate concrete and a preparation method and application thereof.The preparation method comprises the steps that primary reinforced regenerated coral coarse and fine aggregate is prepared, a seawater solution containing second nano-silica is prepared, 2/3 of the seawater solution is added into a cementing material prepared by mixing ordinary Portland cement, silica fume and fly ash, and the self-compacting nano-modified regenerated coral aggregate concrete is prepared. Adding a first water reducing agent, adding the primary reinforced regenerated coral coarse aggregate for secondary reinforcement, adding a second water reducing agent and the residual seawater solution containing second nano silicon dioxide, adding the primary reinforced regenerated coral fine aggregate into the obtained gel-state concrete mixture, loading the mixture into a mold, standing, demolding and curing to obtain the concrete with the secondary reinforced regenerated coral fine aggregate. The self-compacting nano-modified regenerated coral aggregate concrete is obtained. The prepared concrete has the advantages of being good in early strength, high in strength, stable in chemical property, excellent in economical efficiency and environmental protection property, excellent in working performance and the like, and is suitable for island engineering.
本发明公开了一种自密实纳米改性再生珊瑚骨料混凝土及其制备方法和应用，制备方法包括制备一次强化再生珊瑚粗、细骨料，制备含第二纳米二氧化硅的海水溶液，将其2/3加入由普通硅酸盐水泥、硅灰和粉煤灰混合制得的胶凝材料中，得水泥净浆，加入第一减水剂，加一次强化再生珊瑚粗骨料二次强化，加第二减水剂和剩余的含第二纳米二氧化硅的海水溶液，所得凝胶状态的混凝土拌合物中加入一次强化再生珊瑚细骨料，装入模具、静置、脱模、养护，得自密实纳米改性再生珊瑚骨料混凝土。本发明制备的混凝土具有早强性好、强度高、化学性质稳定、经济性和环保性极佳且工作性能优良等优点，适用于岛礁工程。
Self-compacting nano-modified regenerated coral aggregate concrete as well as preparation method and application thereof
自密实纳米改性再生珊瑚骨料混凝土及其制备方法和应用
GUO RUIQI (author) / OU CAN (author) / LONG ZHILIN (author) / XU FU (author) / YIN CHANGJUN (author) / ZHANG JIARUI (author) / ZHOU PENG (author) / WANG JIWEI (author) / XIE TIAN (author) / LIU BING (author)
2024-08-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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