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A platform for research: civil engineering, architecture and urbanism
Steam-curing-free concrete prefabricated part and forming method thereof
The invention discloses a steam-curing-free concrete prefabricated part and a forming method thereof, and a forming formula of the steam-curing-free concrete prefabricated part comprises the following main components: an early strength improving component, a cohesiveness improving component and a durability improving component, the early strength improving component is composed of Portland cement, a crystal nucleus type early strength agent, an organic composite early strength agent and desulfurized gypsum. Through the Portland cement, the crystal nucleus type early strength agent, the organic composite early strength agent and the desulfurized gypsum, the unformed stock solution can be early reinforced, so that the stock solution can be firm without a steam-curing process, and the problems that the steam-curing process exists during production of existing concrete prefabricated parts, and the production cost is low along with temperature rise in the steam-curing process are solved. The problem that a part of water is converted into gas, so that the expansion effect is intensified, the porosity in concrete can be increased due to the expansion effect, and microcracks are generated in the concrete due to the increase of the pressure in holes is solved.
本发明公开了一种免蒸养混凝土预制构件及其成型方法，所述免蒸养混凝土预制构件的成型配方的主要成分为：早期强度提高成分，提高黏聚性成分和提高耐久性成分，所述早期强度提高成分由硅酸盐水泥、晶核型早强剂、有机复合早强剂和脱硫石膏组成。本发明通过硅酸盐水泥、晶核型早强剂、有机复合早强剂和脱硫石膏的，能够对未成型的原液进行早期加强，使其不用蒸养工序也能很结实，解决了现有的混凝土预制构件在生产时都有蒸养工序，而蒸养工序随着温度的升高，一部分水将转化为气，从而更加剧膨胀作用，这种膨胀作用，会增加混凝土中的孔隙率，并且由于孔内压力的增加，还会引起内部产生微细裂纹的问题。
Steam-curing-free concrete prefabricated part and forming method thereof
The invention discloses a steam-curing-free concrete prefabricated part and a forming method thereof, and a forming formula of the steam-curing-free concrete prefabricated part comprises the following main components: an early strength improving component, a cohesiveness improving component and a durability improving component, the early strength improving component is composed of Portland cement, a crystal nucleus type early strength agent, an organic composite early strength agent and desulfurized gypsum. Through the Portland cement, the crystal nucleus type early strength agent, the organic composite early strength agent and the desulfurized gypsum, the unformed stock solution can be early reinforced, so that the stock solution can be firm without a steam-curing process, and the problems that the steam-curing process exists during production of existing concrete prefabricated parts, and the production cost is low along with temperature rise in the steam-curing process are solved. The problem that a part of water is converted into gas, so that the expansion effect is intensified, the porosity in concrete can be increased due to the expansion effect, and microcracks are generated in the concrete due to the increase of the pressure in holes is solved.
本发明公开了一种免蒸养混凝土预制构件及其成型方法，所述免蒸养混凝土预制构件的成型配方的主要成分为：早期强度提高成分，提高黏聚性成分和提高耐久性成分，所述早期强度提高成分由硅酸盐水泥、晶核型早强剂、有机复合早强剂和脱硫石膏组成。本发明通过硅酸盐水泥、晶核型早强剂、有机复合早强剂和脱硫石膏的，能够对未成型的原液进行早期加强，使其不用蒸养工序也能很结实，解决了现有的混凝土预制构件在生产时都有蒸养工序，而蒸养工序随着温度的升高，一部分水将转化为气，从而更加剧膨胀作用，这种膨胀作用，会增加混凝土中的孔隙率，并且由于孔内压力的增加，还会引起内部产生微细裂纹的问题。
Steam-curing-free concrete prefabricated part and forming method thereof
一种免蒸养混凝土预制构件及其成型方法
WU ZHIMING (author)
2022-04-19
Patent
Electronic Resource
Chinese
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