Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of chambering impermeable recycled concrete
The invention discloses a preparation method of chambering impermeable recycled concrete and belongs to the technical field of recycled concrete. According to the invention, a permeation path can be obtained by injecting water into recycled aggregate, then corrosion is conducted along the permeation path after the recycled aggregate is mixed with a dilute acid solution, internal pores are reasonably chambered, impermeable microspheres are stuffed into the pores after chambering, the impermeable microspheres are heated and partially dissolved, the interior of the impermeable microspheres is triggered to generate gas after the impermeable microspheres are heated, so that the impermeable microspheres are adaptively expanded to highly seal expanded pores, moisture permeation is effectively prevented, and meanwhile, the dissolved part can extend out of the recycled aggregate to be fully combined with cement. In addition, cement can enter the recycled aggregate through the expanded pores, the bonding strength between the recycled aggregate and the cement can be remarkably improved after curing and forming, and meanwhile, the impermeability of the recycled aggregate is remarkably improved.
本发明公开了一种扩孔抗渗式再生混凝土的制备方法，属于再生混凝土技术领域，本发明可以通过对再生骨料进行注水获取到渗透路径，然后混合稀酸溶液后沿渗透路径进行腐蚀，从而对内部孔隙进行合理扩孔，扩孔后塞入抗渗微球，并对抗渗微球进行加热和部分溶解，抗渗微球受热后内部触发气体生成动作，从而自身发生适应性膨胀对扩孔后的孔隙进行高度封闭，有效阻止水分的渗透，同时溶解的部分可以延伸出再生骨料与水泥充分结合，另外水泥也可以通过扩孔后的孔隙进入到再生骨料内部，固化成型后可以显著提高再生骨料与水泥之间的结合强度，同时对再生骨料的抗渗性具有明显改善。
Preparation method of chambering impermeable recycled concrete
The invention discloses a preparation method of chambering impermeable recycled concrete and belongs to the technical field of recycled concrete. According to the invention, a permeation path can be obtained by injecting water into recycled aggregate, then corrosion is conducted along the permeation path after the recycled aggregate is mixed with a dilute acid solution, internal pores are reasonably chambered, impermeable microspheres are stuffed into the pores after chambering, the impermeable microspheres are heated and partially dissolved, the interior of the impermeable microspheres is triggered to generate gas after the impermeable microspheres are heated, so that the impermeable microspheres are adaptively expanded to highly seal expanded pores, moisture permeation is effectively prevented, and meanwhile, the dissolved part can extend out of the recycled aggregate to be fully combined with cement. In addition, cement can enter the recycled aggregate through the expanded pores, the bonding strength between the recycled aggregate and the cement can be remarkably improved after curing and forming, and meanwhile, the impermeability of the recycled aggregate is remarkably improved.
本发明公开了一种扩孔抗渗式再生混凝土的制备方法，属于再生混凝土技术领域，本发明可以通过对再生骨料进行注水获取到渗透路径，然后混合稀酸溶液后沿渗透路径进行腐蚀，从而对内部孔隙进行合理扩孔，扩孔后塞入抗渗微球，并对抗渗微球进行加热和部分溶解，抗渗微球受热后内部触发气体生成动作，从而自身发生适应性膨胀对扩孔后的孔隙进行高度封闭，有效阻止水分的渗透，同时溶解的部分可以延伸出再生骨料与水泥充分结合，另外水泥也可以通过扩孔后的孔隙进入到再生骨料内部，固化成型后可以显著提高再生骨料与水泥之间的结合强度，同时对再生骨料的抗渗性具有明显改善。
Preparation method of chambering impermeable recycled concrete
一种扩孔抗渗式再生混凝土的制备方法
LIU ZAITING (Autor:in)
14.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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