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Freezing reclamation method for waste concrete
The invention discloses a freezing reclamation method for waste concrete, and belongs to the field of industrial solid waste comprehensive utilization and building materials. The waste concrete is firstly crushed, the grain size is not larger than 40 mm, water adding is carried out for humidifying, freezing is carried out at the temperature of -1 DEG C to -60 DEG C, mechanical reclamation is carried out after freezing, then drying, screening and grinding are carried out in sequence, and recycled coarse aggregate, recycled fine aggregate and recycled fine powder are obtained. The method has the following advantages that the freezing reclamation method for the waste concrete is good in reclamation effect, and the performance of the recycled aggregate and recycled concrete can be improved; according to the freezing reclamation method for the waste concrete, natural environment conditions can be fully utilized, and energy consumption is reduced; the method is simple in process, low in cost and good in controllability, zero emission of the waste concrete can be achieved, and application and popularization are facilitated.
Freezing reclamation method for waste concrete
The invention discloses a freezing reclamation method for waste concrete, and belongs to the field of industrial solid waste comprehensive utilization and building materials. The waste concrete is firstly crushed, the grain size is not larger than 40 mm, water adding is carried out for humidifying, freezing is carried out at the temperature of -1 DEG C to -60 DEG C, mechanical reclamation is carried out after freezing, then drying, screening and grinding are carried out in sequence, and recycled coarse aggregate, recycled fine aggregate and recycled fine powder are obtained. The method has the following advantages that the freezing reclamation method for the waste concrete is good in reclamation effect, and the performance of the recycled aggregate and recycled concrete can be improved; according to the freezing reclamation method for the waste concrete, natural environment conditions can be fully utilized, and energy consumption is reduced; the method is simple in process, low in cost and good in controllability, zero emission of the waste concrete can be achieved, and application and popularization are facilitated.
Freezing reclamation method for waste concrete
WANG JINA (author) / XU KAIDONG (author) / NIU JISHOU (author) / LI YANYAN (author) / WANG XIAO (author) / ZHI MINGKUN (author) / WEI DONGDONG (author) / XU WENHUI (author)
2015-07-08
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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