尼尔基水利枢纽工程低温季节混凝土生产措施

The concrctc production tcchniquc mcasurcs in the Ni'erji water conservancy project in the low temperature serson

尼尔基水利枢纽骨料加工与混凝土拌和工程,是向尼尔基水利枢纽主体工程提供成品混凝土的工程,混凝土总量为105.13万m3,施工期为5a,每年仅可施工6个月。由于工期紧,混凝土生产需要在当年的4～10月间进行,为保证工程质量与工期要求,生产采取了加防冻剂并在拌和系统中加装增温系统和骨料保温系统的低温季节混凝土技术措施,并取得了良好的效果。

The finished concrete which the principle part of the aggregate processing and concrete mixing words. The gross of the concrete is 105.13× 104 m^3, concrete period is 5 years, and construction of concrete will be conducted for 6 months every, year. Due to the time limi of the project, production of concrete Will be executed only in the April and the October of the year. In order to build the best quality project in construction period, the following effective measures in the concrete production have been adopted： adding antifreeze addietive, adding heat increasing system and heat preservation system of aggregate in the mixing system and the like.