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Preparation method and pumping process of high-strength lightweight aggregate concrete
The invention relates to a preparation method of high-strength lightweight aggregate concrete, and belongs to the technical field of lightweight aggregate concrete. The method includes fly ash pretreatment and preparation of the lightweight aggregate concrete. During fly ash pretreatment, water is sprayed on fly ash, the fly ash is roasted and activated to introduce more hydroxyl groups on the flyash, the activity of the fly ash is improved, and the lightweight aggregate has improved early strength, high later strength and an advantage of stable pumping. In a pumping process of the high-strength lightweight aggregate concrete, the lightweight aggregate concrete is stirred in a pipeline output end, a wall hanging situation of the lightweight aggregate concrete in the pipeline is reduced and pumping stability of the lightweight aggregate concrete is improved.
本发明涉及一种高强轻集料混凝土制备方法，属于轻集料混凝土技术领域，包括粉煤灰的预处理、轻集料混凝土的制备。在粉煤灰的预处理中，在粉煤灰上喷水，并对粉煤灰进行焙烧活化，在粉煤灰上引入较多的羟基，并提高粉煤灰的活性，不仅增加了轻集料混凝土的早期强度，而且还具有较高的后期强度，并具有泵送稳定的优点，在高强轻集料混凝土泵送工艺中，在管道输出端的内部，对轻集料混凝土进行搅拌，降低轻集料混凝土于管道内出现挂壁的情况，提高轻集料混凝土泵送的稳定性。
Preparation method and pumping process of high-strength lightweight aggregate concrete
The invention relates to a preparation method of high-strength lightweight aggregate concrete, and belongs to the technical field of lightweight aggregate concrete. The method includes fly ash pretreatment and preparation of the lightweight aggregate concrete. During fly ash pretreatment, water is sprayed on fly ash, the fly ash is roasted and activated to introduce more hydroxyl groups on the flyash, the activity of the fly ash is improved, and the lightweight aggregate has improved early strength, high later strength and an advantage of stable pumping. In a pumping process of the high-strength lightweight aggregate concrete, the lightweight aggregate concrete is stirred in a pipeline output end, a wall hanging situation of the lightweight aggregate concrete in the pipeline is reduced and pumping stability of the lightweight aggregate concrete is improved.
本发明涉及一种高强轻集料混凝土制备方法，属于轻集料混凝土技术领域，包括粉煤灰的预处理、轻集料混凝土的制备。在粉煤灰的预处理中，在粉煤灰上喷水，并对粉煤灰进行焙烧活化，在粉煤灰上引入较多的羟基，并提高粉煤灰的活性，不仅增加了轻集料混凝土的早期强度，而且还具有较高的后期强度，并具有泵送稳定的优点，在高强轻集料混凝土泵送工艺中，在管道输出端的内部，对轻集料混凝土进行搅拌，降低轻集料混凝土于管道内出现挂壁的情况，提高轻集料混凝土泵送的稳定性。
Preparation method and pumping process of high-strength lightweight aggregate concrete
一种高强轻集料混凝土制备方法及泵送工艺
LUO YANG (author) / DENG XIAOFEI (author) / ZHANG WEI (author)
2020-04-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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